Merge branch 'libbpf:master' into master

xsk.{c,h} are not part of libbpf anymore, remove them from Makefile.

Signed-off-by: Andrii Nakryiko <andrii@kernel.org>

.travis.yml

@@ -1,130 +0,0 @@
-sudo: required
-language: bash
-dist: focal
-services:
-    - docker
-
-env:
-    global:
-        - PROJECT_NAME='libbpf'
-        - AUTHOR_EMAIL="$(git log -1 --pretty=\"%aE\")"
-        - REPO_ROOT="$TRAVIS_BUILD_DIR"
-        - CI_ROOT="$REPO_ROOT/travis-ci"
-        - VMTEST_ROOT="$CI_ROOT/vmtest"
-
-addons:
-    apt:
-        packages:
-            - qemu-kvm
-            - zstd
-            - binutils-dev
-            - elfutils
-            - libcap-dev
-            - libelf-dev
-            - libdw-dev
-
-stages:
-    # Run Coverity periodically instead of for each PR for following reasons:
-    # 1) Coverity jobs are heavily rate-limited
-    # 2) Due to security restrictions of encrypted environment variables
-    #    in Travis CI, pull requests made from forks can't access encrypted
-    #    env variables, making Coverity unusable
-    #    See: https://docs.travis-ci.com/user/pull-requests#pull-requests-and-security-restrictions
-    - name: Coverity
-      if: type = cron
-
-jobs:
-    include:
-        - stage: Builds & Tests
-          name: Kernel 5.5.0 + selftests
-          language: bash
-          env: KERNEL=5.5.0
-          script:  $CI_ROOT/vmtest/run_vmtest.sh || travis_terminate 1
-
-        - name: Kernel LATEST + selftests
-          language: bash
-          env: KERNEL=LATEST
-          script:  $CI_ROOT/vmtest/run_vmtest.sh || travis_terminate 1
-
-        - name: Kernel 4.9.0 + selftests
-          language: bash
-          env: KERNEL=4.9.0
-          script:  $CI_ROOT/vmtest/run_vmtest.sh || travis_terminate 1
-
-        - name: Debian Build
-          language: bash
-          install:        $CI_ROOT/managers/debian.sh SETUP
-          script:         $CI_ROOT/managers/debian.sh RUN || travis_terminate 1
-          after_script:   $CI_ROOT/managers/debian.sh CLEANUP
-
-        - name: Debian Build (ASan+UBSan)
-          language: bash
-          install:        $CI_ROOT/managers/debian.sh SETUP
-          script:         $CI_ROOT/managers/debian.sh RUN_ASAN || travis_terminate 1
-          after_script:   $CI_ROOT/managers/debian.sh CLEANUP
-
-        - name: Debian Build (clang)
-          language: bash
-          install:        $CI_ROOT/managers/debian.sh SETUP
-          script:         $CI_ROOT/managers/debian.sh RUN_CLANG || travis_terminate 1
-          after_script:   $CI_ROOT/managers/debian.sh CLEANUP
-
-        - name: Debian Build (clang ASan+UBSan)
-          language: bash
-          install:        $CI_ROOT/managers/debian.sh SETUP
-          script:         $CI_ROOT/managers/debian.sh RUN_CLANG_ASAN || travis_terminate 1
-          after_script:   $CI_ROOT/managers/debian.sh CLEANUP
-
-        - name: Debian Build (gcc-10)
-          language: bash
-          install:        $CI_ROOT/managers/debian.sh SETUP
-          script:         $CI_ROOT/managers/debian.sh RUN_GCC10 || travis_terminate 1
-          after_script:   $CI_ROOT/managers/debian.sh CLEANUP
-
-        - name: Debian Build (gcc-10 ASan+UBSan)
-          language: bash
-          install:        $CI_ROOT/managers/debian.sh SETUP
-          script:         $CI_ROOT/managers/debian.sh RUN_GCC10_ASAN || travis_terminate 1
-          after_script:   $CI_ROOT/managers/debian.sh CLEANUP
-
-        - name: Ubuntu Focal Build
-          language: bash
-          script: sudo $CI_ROOT/managers/ubuntu.sh || travis_terminate 1
-
-        - name: Ubuntu Focal Build (arm)
-          arch: arm64
-          language: bash
-          script: sudo $CI_ROOT/managers/ubuntu.sh || travis_terminate 1
-
-        - name: Ubuntu Focal Build (s390x)
-          arch: s390x
-          language: bash
-          script: sudo $CI_ROOT/managers/ubuntu.sh || travis_terminate 1
-
-        - name: Ubuntu Focal Build (ppc64le)
-          arch: ppc64le
-          language: bash
-          script: sudo $CI_ROOT/managers/ubuntu.sh || travis_terminate 1
-
-        - stage: Coverity
-          language: bash
-          env:
-              # Coverity configuration
-              # COVERITY_SCAN_TOKEN=xxx
-              # Encrypted using `travis encrypt --repo libbpf/libbpf COVERITY_SCAN_TOKEN=xxx`
-              - secure: "I9OsMRHbb82IUivDp+I+w/jEQFOJgBDAqYqf1ollqCM1QhocxMcS9bwIAgfPhdXi2hohV7sRrVMZstahY67FAvJLGxNopi4tAPDIAaIFxgO0yDxMhaTMx5xDfMwlIm2FOP/9gB9BQsd6M7CmoQZgXYwBIv7xd1ooxoQrh2rOK1YrRl7UQu3+c3zPTjDfIYZzR3bFttMqZ9/c4U0v8Ry5IFXrel3hCshndHA1TtttJrUSrILlZcmVc1ch7JIy6zCbCU/2lGv0B/7rWXfF8MT7O9jPtFOhJ1DEcd2zhw2n4j9YT3a8OhtnM61LA6ask632mwCOsxpFLTun7AzuR1Cb5mdPHsxhxnCHcXXARa2mJjem0QG1NhwxwJE8sbRDapojexxCvweYlEN40ofwMDSnj/qNt95XIcrk0tiIhGFx0gVNWvAdmZwx+N4mwGPMTAN0AEOFjpgI+ZdB89m+tL/CbEgE1flc8QxUxJhcp5OhH6yR0z9qYOp0nXIbHsIaCiRvt/7LqFRQfheifztWVz4mdQlCdKS9gcOQ09oKicPevKO1L0Ue3cb7Ug7jOpMs+cdh3XokJtUeYEr1NijMHT9+CTAhhO5RToWXIZRon719z3fwoUBNDREATwVFMlVxqSO/pbYgaKminigYbl785S89YYaZ6E5UvaKRHM6KHKMDszs="
-              - COVERITY_SCAN_PROJECT_NAME="libbpf"
-              - COVERITY_SCAN_NOTIFICATION_EMAIL="${AUTHOR_EMAIL}"
-              - COVERITY_SCAN_BRANCH_PATTERN="$TRAVIS_BRANCH"
-              # Note: `make -C src/` as a BUILD_COMMAND will not work here
-              - COVERITY_SCAN_BUILD_COMMAND_PREPEND="cd src/"
-              - COVERITY_SCAN_BUILD_COMMAND="make"
-          install:
-              - sudo echo 'deb-src http://archive.ubuntu.com/ubuntu/ focal main restricted universe multiverse' >>/etc/apt/sources.list
-              - sudo apt-get update
-              - sudo apt-get -y build-dep libelf-dev
-              - sudo apt-get install -y libelf-dev pkg-config
-          script:
-              - scripts/coverity.sh || travis_terminate 1
-    allow_failures:
-        - env: KERNEL=x.x.x

BPF-CHECKPOINT-COMMIT

@@ -1 +1 @@
-f3f19f939c11925dadd3f4776f99f8c278a7017b
+d28b25a62a47a8c8aa19bd543863aab6717e68c9

CHECKPOINT-COMMIT

@@ -1 +1 @@
-ac6a65868a5a45db49d5ee8524df3b701110d844
+b0d93b44641a83c28014ca38001e85bf6dc8501e

README.md

@@ -146,7 +146,7 @@ Benefits of packaging from the mirror over packaging from kernel sources:
     gracefully degrading functionality. Thus libbpf is not tied to a specific
     kernel version and can/should be packaged and versioned independently.
   - Continuous integration testing via
-    [TravisCI](https://travis-ci.org/libbpf/libbpf).
+    [GitHub Actions](https://github.com/libbpf/libbpf/actions).
   - Static code analysis via [LGTM](https://lgtm.com/projects/g/libbpf/libbpf)
     and [Coverity](https://scan.coverity.com/projects/libbpf).
 

include/uapi/linux/bpf.h

@@ -998,6 +998,7 @@ enum bpf_attach_type {
 	BPF_SK_REUSEPORT_SELECT_OR_MIGRATE,
 	BPF_PERF_EVENT,
 	BPF_TRACE_KPROBE_MULTI,
+	BPF_LSM_CGROUP,
 	__MAX_BPF_ATTACH_TYPE
 };
 
@@ -1431,6 +1432,7 @@ union bpf_attr {
 		__u32		attach_flags;
 		__aligned_u64	prog_ids;
 		__u32		prog_cnt;
+		__aligned_u64	prog_attach_flags; /* output: per-program attach_flags */
 	} query;
 
 	struct { /* anonymous struct used by BPF_RAW_TRACEPOINT_OPEN command */
@@ -3597,10 +3599,11 @@ union bpf_attr {
  *
  * 		*iph* points to the start of the IPv4 or IPv6 header, while
  * 		*iph_len* contains **sizeof**\ (**struct iphdr**) or
- * 		**sizeof**\ (**struct ip6hdr**).
+ * 		**sizeof**\ (**struct ipv6hdr**).
  *
  * 		*th* points to the start of the TCP header, while *th_len*
- * 		contains **sizeof**\ (**struct tcphdr**).
+ *		contains the length of the TCP header (at least
+ *		**sizeof**\ (**struct tcphdr**)).
  * 	Return
  * 		0 if *iph* and *th* are a valid SYN cookie ACK, or a negative
  * 		error otherwise.
@@ -3783,10 +3786,11 @@ union bpf_attr {
  *
  *		*iph* points to the start of the IPv4 or IPv6 header, while
  *		*iph_len* contains **sizeof**\ (**struct iphdr**) or
- *		**sizeof**\ (**struct ip6hdr**).
+ *		**sizeof**\ (**struct ipv6hdr**).
  *
  *		*th* points to the start of the TCP header, while *th_len*
- *		contains the length of the TCP header.
+ *		contains the length of the TCP header with options (at least
+ *		**sizeof**\ (**struct tcphdr**)).
  *	Return
  *		On success, lower 32 bits hold the generated SYN cookie in
  *		followed by 16 bits which hold the MSS value for that cookie,
@@ -5172,6 +5176,157 @@ union bpf_attr {
  * 	Return
  * 		Map value associated to *key* on *cpu*, or **NULL** if no entry
  * 		was found or *cpu* is invalid.
+ *
+ * struct mptcp_sock *bpf_skc_to_mptcp_sock(void *sk)
+ *	Description
+ *		Dynamically cast a *sk* pointer to a *mptcp_sock* pointer.
+ *	Return
+ *		*sk* if casting is valid, or **NULL** otherwise.
+ *
+ * long bpf_dynptr_from_mem(void *data, u32 size, u64 flags, struct bpf_dynptr *ptr)
+ *	Description
+ *		Get a dynptr to local memory *data*.
+ *
+ *		*data* must be a ptr to a map value.
+ *		The maximum *size* supported is DYNPTR_MAX_SIZE.
+ *		*flags* is currently unused.
+ *	Return
+ *		0 on success, -E2BIG if the size exceeds DYNPTR_MAX_SIZE,
+ *		-EINVAL if flags is not 0.
+ *
+ * long bpf_ringbuf_reserve_dynptr(void *ringbuf, u32 size, u64 flags, struct bpf_dynptr *ptr)
+ *	Description
+ *		Reserve *size* bytes of payload in a ring buffer *ringbuf*
+ *		through the dynptr interface. *flags* must be 0.
+ *
+ *		Please note that a corresponding bpf_ringbuf_submit_dynptr or
+ *		bpf_ringbuf_discard_dynptr must be called on *ptr*, even if the
+ *		reservation fails. This is enforced by the verifier.
+ *	Return
+ *		0 on success, or a negative error in case of failure.
+ *
+ * void bpf_ringbuf_submit_dynptr(struct bpf_dynptr *ptr, u64 flags)
+ *	Description
+ *		Submit reserved ring buffer sample, pointed to by *data*,
+ *		through the dynptr interface. This is a no-op if the dynptr is
+ *		invalid/null.
+ *
+ *		For more information on *flags*, please see
+ *		'bpf_ringbuf_submit'.
+ *	Return
+ *		Nothing. Always succeeds.
+ *
+ * void bpf_ringbuf_discard_dynptr(struct bpf_dynptr *ptr, u64 flags)
+ *	Description
+ *		Discard reserved ring buffer sample through the dynptr
+ *		interface. This is a no-op if the dynptr is invalid/null.
+ *
+ *		For more information on *flags*, please see
+ *		'bpf_ringbuf_discard'.
+ *	Return
+ *		Nothing. Always succeeds.
+ *
+ * long bpf_dynptr_read(void *dst, u32 len, struct bpf_dynptr *src, u32 offset)
+ *	Description
+ *		Read *len* bytes from *src* into *dst*, starting from *offset*
+ *		into *src*.
+ *	Return
+ *		0 on success, -E2BIG if *offset* + *len* exceeds the length
+ *		of *src*'s data, -EINVAL if *src* is an invalid dynptr.
+ *
+ * long bpf_dynptr_write(struct bpf_dynptr *dst, u32 offset, void *src, u32 len)
+ *	Description
+ *		Write *len* bytes from *src* into *dst*, starting from *offset*
+ *		into *dst*.
+ *	Return
+ *		0 on success, -E2BIG if *offset* + *len* exceeds the length
+ *		of *dst*'s data, -EINVAL if *dst* is an invalid dynptr or if *dst*
+ *		is a read-only dynptr.
+ *
+ * void *bpf_dynptr_data(struct bpf_dynptr *ptr, u32 offset, u32 len)
+ *	Description
+ *		Get a pointer to the underlying dynptr data.
+ *
+ *		*len* must be a statically known value. The returned data slice
+ *		is invalidated whenever the dynptr is invalidated.
+ *	Return
+ *		Pointer to the underlying dynptr data, NULL if the dynptr is
+ *		read-only, if the dynptr is invalid, or if the offset and length
+ *		is out of bounds.
+ *
+ * s64 bpf_tcp_raw_gen_syncookie_ipv4(struct iphdr *iph, struct tcphdr *th, u32 th_len)
+ *	Description
+ *		Try to issue a SYN cookie for the packet with corresponding
+ *		IPv4/TCP headers, *iph* and *th*, without depending on a
+ *		listening socket.
+ *
+ *		*iph* points to the IPv4 header.
+ *
+ *		*th* points to the start of the TCP header, while *th_len*
+ *		contains the length of the TCP header (at least
+ *		**sizeof**\ (**struct tcphdr**)).
+ *	Return
+ *		On success, lower 32 bits hold the generated SYN cookie in
+ *		followed by 16 bits which hold the MSS value for that cookie,
+ *		and the top 16 bits are unused.
+ *
+ *		On failure, the returned value is one of the following:
+ *
+ *		**-EINVAL** if *th_len* is invalid.
+ *
+ * s64 bpf_tcp_raw_gen_syncookie_ipv6(struct ipv6hdr *iph, struct tcphdr *th, u32 th_len)
+ *	Description
+ *		Try to issue a SYN cookie for the packet with corresponding
+ *		IPv6/TCP headers, *iph* and *th*, without depending on a
+ *		listening socket.
+ *
+ *		*iph* points to the IPv6 header.
+ *
+ *		*th* points to the start of the TCP header, while *th_len*
+ *		contains the length of the TCP header (at least
+ *		**sizeof**\ (**struct tcphdr**)).
+ *	Return
+ *		On success, lower 32 bits hold the generated SYN cookie in
+ *		followed by 16 bits which hold the MSS value for that cookie,
+ *		and the top 16 bits are unused.
+ *
+ *		On failure, the returned value is one of the following:
+ *
+ *		**-EINVAL** if *th_len* is invalid.
+ *
+ *		**-EPROTONOSUPPORT** if CONFIG_IPV6 is not builtin.
+ *
+ * long bpf_tcp_raw_check_syncookie_ipv4(struct iphdr *iph, struct tcphdr *th)
+ *	Description
+ *		Check whether *iph* and *th* contain a valid SYN cookie ACK
+ *		without depending on a listening socket.
+ *
+ *		*iph* points to the IPv4 header.
+ *
+ *		*th* points to the TCP header.
+ *	Return
+ *		0 if *iph* and *th* are a valid SYN cookie ACK.
+ *
+ *		On failure, the returned value is one of the following:
+ *
+ *		**-EACCES** if the SYN cookie is not valid.
+ *
+ * long bpf_tcp_raw_check_syncookie_ipv6(struct ipv6hdr *iph, struct tcphdr *th)
+ *	Description
+ *		Check whether *iph* and *th* contain a valid SYN cookie ACK
+ *		without depending on a listening socket.
+ *
+ *		*iph* points to the IPv6 header.
+ *
+ *		*th* points to the TCP header.
+ *	Return
+ *		0 if *iph* and *th* are a valid SYN cookie ACK.
+ *
+ *		On failure, the returned value is one of the following:
+ *
+ *		**-EACCES** if the SYN cookie is not valid.
+ *
+ *		**-EPROTONOSUPPORT** if CONFIG_IPV6 is not builtin.
  */
 #define __BPF_FUNC_MAPPER(FN)		\
 	FN(unspec),			\
@@ -5370,6 +5525,18 @@ union bpf_attr {
 	FN(ima_file_hash),		\
 	FN(kptr_xchg),			\
 	FN(map_lookup_percpu_elem),     \
+	FN(skc_to_mptcp_sock),		\
+	FN(dynptr_from_mem),		\
+	FN(ringbuf_reserve_dynptr),	\
+	FN(ringbuf_submit_dynptr),	\
+	FN(ringbuf_discard_dynptr),	\
+	FN(dynptr_read),		\
+	FN(dynptr_write),		\
+	FN(dynptr_data),		\
+	FN(tcp_raw_gen_syncookie_ipv4),	\
+	FN(tcp_raw_gen_syncookie_ipv6),	\
+	FN(tcp_raw_check_syncookie_ipv4),	\
+	FN(tcp_raw_check_syncookie_ipv6),	\
 	/* */
 
 /* integer value in 'imm' field of BPF_CALL instruction selects which helper
@@ -5910,6 +6077,8 @@ struct bpf_prog_info {
 	__u64 run_cnt;
 	__u64 recursion_misses;
 	__u32 verified_insns;
+	__u32 attach_btf_obj_id;
+	__u32 attach_btf_id;
 } __attribute__((aligned(8)));
 
 struct bpf_map_info {
@@ -6521,6 +6690,11 @@ struct bpf_timer {
 	__u64 :64;
 } __attribute__((aligned(8)));
 
+struct bpf_dynptr {
+	__u64 :64;
+	__u64 :64;
+} __attribute__((aligned(8)));
+
 struct bpf_sysctl {
 	__u32	write;		/* Sysctl is being read (= 0) or written (= 1).
 				 * Allows 1,2,4-byte read, but no write.

include/uapi/linux/btf.h

@@ -36,10 +36,10 @@ struct btf_type {
 	 * bits 24-28: kind (e.g. int, ptr, array...etc)
 	 * bits 29-30: unused
 	 * bit     31: kind_flag, currently used by
-	 *             struct, union and fwd
+	 *             struct, union, enum, fwd and enum64
 	 */
 	__u32 info;
-	/* "size" is used by INT, ENUM, STRUCT, UNION and DATASEC.
+	/* "size" is used by INT, ENUM, STRUCT, UNION, DATASEC and ENUM64.
 	 * "size" tells the size of the type it is describing.
 	 *
 	 * "type" is used by PTR, TYPEDEF, VOLATILE, CONST, RESTRICT,
@@ -63,7 +63,7 @@ enum {
 	BTF_KIND_ARRAY		= 3,	/* Array	*/
 	BTF_KIND_STRUCT		= 4,	/* Struct	*/
 	BTF_KIND_UNION		= 5,	/* Union	*/
-	BTF_KIND_ENUM		= 6,	/* Enumeration	*/
+	BTF_KIND_ENUM		= 6,	/* Enumeration up to 32-bit values */
 	BTF_KIND_FWD		= 7,	/* Forward	*/
 	BTF_KIND_TYPEDEF	= 8,	/* Typedef	*/
 	BTF_KIND_VOLATILE	= 9,	/* Volatile	*/
@@ -76,6 +76,7 @@ enum {
 	BTF_KIND_FLOAT		= 16,	/* Floating point	*/
 	BTF_KIND_DECL_TAG	= 17,	/* Decl Tag */
 	BTF_KIND_TYPE_TAG	= 18,	/* Type Tag */
+	BTF_KIND_ENUM64		= 19,	/* Enumeration up to 64-bit values */
 
 	NR_BTF_KINDS,
 	BTF_KIND_MAX		= NR_BTF_KINDS - 1,
@@ -186,4 +187,14 @@ struct btf_decl_tag {
        __s32   component_idx;
 };
 
+/* BTF_KIND_ENUM64 is followed by multiple "struct btf_enum64".
+ * The exact number of btf_enum64 is stored in the vlen (of the
+ * info in "struct btf_type").
+ */
+struct btf_enum64 {
+	__u32	name_off;
+	__u32	val_lo32;
+	__u32	val_hi32;
+};
+
 #endif /* _UAPI__LINUX_BTF_H__ */

include/uapi/linux/if_link.h

@@ -348,6 +348,8 @@ enum {
 	IFLA_PARENT_DEV_NAME,
 	IFLA_PARENT_DEV_BUS_NAME,
 	IFLA_GRO_MAX_SIZE,
+	IFLA_TSO_MAX_SIZE,
+	IFLA_TSO_MAX_SEGS,
 
 	__IFLA_MAX
 };

src/Makefile

@@ -8,8 +8,8 @@ else
 	msg = @printf '  %-8s %s%s\n' "$(1)" "$(2)" "$(if $(3), $(3))";
 endif
 
-LIBBPF_MAJOR_VERSION := 0
-LIBBPF_MINOR_VERSION := 8
+LIBBPF_MAJOR_VERSION := 1
+LIBBPF_MINOR_VERSION := 0
 LIBBPF_PATCH_VERSION := 0
 LIBBPF_VERSION := $(LIBBPF_MAJOR_VERSION).$(LIBBPF_MINOR_VERSION).$(LIBBPF_PATCH_VERSION)
 LIBBPF_MAJMIN_VERSION := $(LIBBPF_MAJOR_VERSION).$(LIBBPF_MINOR_VERSION).0
@@ -18,6 +18,15 @@ ifneq ($(LIBBPF_MAJMIN_VERSION), $(LIBBPF_MAP_VERSION))
 $(error Libbpf release ($(LIBBPF_VERSION)) and map ($(LIBBPF_MAP_VERSION)) versions are out of sync!)
 endif
 
+define allow-override
+  $(if $(or $(findstring environment,$(origin $(1))),\
+            $(findstring command line,$(origin $(1)))),,\
+    $(eval $(1) = $(2)))
+endef
+
+$(call allow-override,CC,$(CROSS_COMPILE)cc)
+$(call allow-override,LD,$(CROSS_COMPILE)ld)
+
 TOPDIR = ..
 
 INCLUDES := -I. -I$(TOPDIR)/include -I$(TOPDIR)/include/uapi
@@ -26,8 +35,9 @@ ALL_CFLAGS := $(INCLUDES)
 SHARED_CFLAGS += -fPIC -fvisibility=hidden -DSHARED
 
 CFLAGS ?= -g -O2 -Werror -Wall -std=gnu89
-ALL_CFLAGS += $(CFLAGS) -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64
-ALL_LDFLAGS += $(LDFLAGS)
+ALL_CFLAGS += $(CFLAGS) -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 $(EXTRA_CFLAGS)
+ALL_LDFLAGS += $(LDFLAGS) $(EXTRA_LDFLAGS)
+
 ifdef NO_PKG_CONFIG
 	ALL_LDFLAGS += -lelf -lz
 else
@@ -40,7 +50,7 @@ OBJDIR ?= .
 SHARED_OBJDIR := $(OBJDIR)/sharedobjs
 STATIC_OBJDIR := $(OBJDIR)/staticobjs
 OBJS := bpf.o btf.o libbpf.o libbpf_errno.o netlink.o \
-	nlattr.o str_error.o libbpf_probes.o bpf_prog_linfo.o xsk.o \
+	nlattr.o str_error.o libbpf_probes.o bpf_prog_linfo.o \
 	btf_dump.o hashmap.o ringbuf.o strset.o linker.o gen_loader.o \
 	relo_core.o usdt.o
 SHARED_OBJS := $(addprefix $(SHARED_OBJDIR)/,$(OBJS))
@@ -54,7 +64,7 @@ ifndef BUILD_STATIC_ONLY
 	VERSION_SCRIPT := libbpf.map
 endif
 
-HEADERS := bpf.h libbpf.h btf.h libbpf_common.h libbpf_legacy.h xsk.h \
+HEADERS := bpf.h libbpf.h btf.h libbpf_common.h libbpf_legacy.h \
 	   bpf_helpers.h bpf_helper_defs.h bpf_tracing.h \
 	   bpf_endian.h bpf_core_read.h skel_internal.h libbpf_version.h \
 	   usdt.bpf.h

src/bpf.c

@@ -147,10 +147,6 @@ int bump_rlimit_memlock(void)
 {
 	struct rlimit rlim;
 
-	/* this the default in libbpf 1.0, but for now user has to opt-in explicitly */
-	if (!(libbpf_mode & LIBBPF_STRICT_AUTO_RLIMIT_MEMLOCK))
-		return 0;
-
 	/* if kernel supports memcg-based accounting, skip bumping RLIMIT_MEMLOCK */
 	if (memlock_bumped || kernel_supports(NULL, FEAT_MEMCG_ACCOUNT))
 		return 0;
@@ -208,86 +204,6 @@ int bpf_map_create(enum bpf_map_type map_type,
 	return libbpf_err_errno(fd);
 }
 
-int bpf_create_map_xattr(const struct bpf_create_map_attr *create_attr)
-{
-	LIBBPF_OPTS(bpf_map_create_opts, p);
-
-	p.map_flags = create_attr->map_flags;
-	p.numa_node = create_attr->numa_node;
-	p.btf_fd = create_attr->btf_fd;
-	p.btf_key_type_id = create_attr->btf_key_type_id;
-	p.btf_value_type_id = create_attr->btf_value_type_id;
-	p.map_ifindex = create_attr->map_ifindex;
-	if (create_attr->map_type == BPF_MAP_TYPE_STRUCT_OPS)
-		p.btf_vmlinux_value_type_id = create_attr->btf_vmlinux_value_type_id;
-	else
-		p.inner_map_fd = create_attr->inner_map_fd;
-
-	return bpf_map_create(create_attr->map_type, create_attr->name,
-			      create_attr->key_size, create_attr->value_size,
-			      create_attr->max_entries, &p);
-}
-
-int bpf_create_map_node(enum bpf_map_type map_type, const char *name,
-			int key_size, int value_size, int max_entries,
-			__u32 map_flags, int node)
-{
-	LIBBPF_OPTS(bpf_map_create_opts, opts);
-
-	opts.map_flags = map_flags;
-	if (node >= 0) {
-		opts.numa_node = node;
-		opts.map_flags |= BPF_F_NUMA_NODE;
-	}
-
-	return bpf_map_create(map_type, name, key_size, value_size, max_entries, &opts);
-}
-
-int bpf_create_map(enum bpf_map_type map_type, int key_size,
-		   int value_size, int max_entries, __u32 map_flags)
-{
-	LIBBPF_OPTS(bpf_map_create_opts, opts, .map_flags = map_flags);
-
-	return bpf_map_create(map_type, NULL, key_size, value_size, max_entries, &opts);
-}
-
-int bpf_create_map_name(enum bpf_map_type map_type, const char *name,
-			int key_size, int value_size, int max_entries,
-			__u32 map_flags)
-{
-	LIBBPF_OPTS(bpf_map_create_opts, opts, .map_flags = map_flags);
-
-	return bpf_map_create(map_type, name, key_size, value_size, max_entries, &opts);
-}
-
-int bpf_create_map_in_map_node(enum bpf_map_type map_type, const char *name,
-			       int key_size, int inner_map_fd, int max_entries,
-			       __u32 map_flags, int node)
-{
-	LIBBPF_OPTS(bpf_map_create_opts, opts);
-
-	opts.inner_map_fd = inner_map_fd;
-	opts.map_flags = map_flags;
-	if (node >= 0) {
-		opts.map_flags |= BPF_F_NUMA_NODE;
-		opts.numa_node = node;
-	}
-
-	return bpf_map_create(map_type, name, key_size, 4, max_entries, &opts);
-}
-
-int bpf_create_map_in_map(enum bpf_map_type map_type, const char *name,
-			  int key_size, int inner_map_fd, int max_entries,
-			  __u32 map_flags)
-{
-	LIBBPF_OPTS(bpf_map_create_opts, opts,
-		.inner_map_fd = inner_map_fd,
-		.map_flags = map_flags,
-	);
-
-	return bpf_map_create(map_type, name, key_size, 4, max_entries, &opts);
-}
-
 static void *
 alloc_zero_tailing_info(const void *orecord, __u32 cnt,
 			__u32 actual_rec_size, __u32 expected_rec_size)
@@ -313,11 +229,10 @@ alloc_zero_tailing_info(const void *orecord, __u32 cnt,
 	return info;
 }
 
-DEFAULT_VERSION(bpf_prog_load_v0_6_0, bpf_prog_load, LIBBPF_0.6.0)
-int bpf_prog_load_v0_6_0(enum bpf_prog_type prog_type,
-		         const char *prog_name, const char *license,
-		         const struct bpf_insn *insns, size_t insn_cnt,
-		         const struct bpf_prog_load_opts *opts)
+int bpf_prog_load(enum bpf_prog_type prog_type,
+		  const char *prog_name, const char *license,
+		  const struct bpf_insn *insns, size_t insn_cnt,
+		  const struct bpf_prog_load_opts *opts)
 {
 	void *finfo = NULL, *linfo = NULL;
 	const char *func_info, *line_info;
@@ -464,94 +379,6 @@ done:
 	return libbpf_err_errno(fd);
 }
 
-__attribute__((alias("bpf_load_program_xattr2")))
-int bpf_load_program_xattr(const struct bpf_load_program_attr *load_attr,
-			   char *log_buf, size_t log_buf_sz);
-
-static int bpf_load_program_xattr2(const struct bpf_load_program_attr *load_attr,
-				   char *log_buf, size_t log_buf_sz)
-{
-	LIBBPF_OPTS(bpf_prog_load_opts, p);
-
-	if (!load_attr || !log_buf != !log_buf_sz)
-		return libbpf_err(-EINVAL);
-
-	p.expected_attach_type = load_attr->expected_attach_type;
-	switch (load_attr->prog_type) {
-	case BPF_PROG_TYPE_STRUCT_OPS:
-	case BPF_PROG_TYPE_LSM:
-		p.attach_btf_id = load_attr->attach_btf_id;
-		break;
-	case BPF_PROG_TYPE_TRACING:
-	case BPF_PROG_TYPE_EXT:
-		p.attach_btf_id = load_attr->attach_btf_id;
-		p.attach_prog_fd = load_attr->attach_prog_fd;
-		break;
-	default:
-		p.prog_ifindex = load_attr->prog_ifindex;
-		p.kern_version = load_attr->kern_version;
-	}
-	p.log_level = load_attr->log_level;
-	p.log_buf = log_buf;
-	p.log_size = log_buf_sz;
-	p.prog_btf_fd = load_attr->prog_btf_fd;
-	p.func_info_rec_size = load_attr->func_info_rec_size;
-	p.func_info_cnt = load_attr->func_info_cnt;
-	p.func_info = load_attr->func_info;
-	p.line_info_rec_size = load_attr->line_info_rec_size;
-	p.line_info_cnt = load_attr->line_info_cnt;
-	p.line_info = load_attr->line_info;
-	p.prog_flags = load_attr->prog_flags;
-
-	return bpf_prog_load(load_attr->prog_type, load_attr->name, load_attr->license,
-			     load_attr->insns, load_attr->insns_cnt, &p);
-}
-
-int bpf_load_program(enum bpf_prog_type type, const struct bpf_insn *insns,
-		     size_t insns_cnt, const char *license,
-		     __u32 kern_version, char *log_buf,
-		     size_t log_buf_sz)
-{
-	struct bpf_load_program_attr load_attr;
-
-	memset(&load_attr, 0, sizeof(struct bpf_load_program_attr));
-	load_attr.prog_type = type;
-	load_attr.expected_attach_type = 0;
-	load_attr.name = NULL;
-	load_attr.insns = insns;
-	load_attr.insns_cnt = insns_cnt;
-	load_attr.license = license;
-	load_attr.kern_version = kern_version;
-
-	return bpf_load_program_xattr2(&load_attr, log_buf, log_buf_sz);
-}
-
-int bpf_verify_program(enum bpf_prog_type type, const struct bpf_insn *insns,
-		       size_t insns_cnt, __u32 prog_flags, const char *license,
-		       __u32 kern_version, char *log_buf, size_t log_buf_sz,
-		       int log_level)
-{
-	union bpf_attr attr;
-	int fd;
-
-	bump_rlimit_memlock();
-
-	memset(&attr, 0, sizeof(attr));
-	attr.prog_type = type;
-	attr.insn_cnt = (__u32)insns_cnt;
-	attr.insns = ptr_to_u64(insns);
-	attr.license = ptr_to_u64(license);
-	attr.log_buf = ptr_to_u64(log_buf);
-	attr.log_size = log_buf_sz;
-	attr.log_level = log_level;
-	log_buf[0] = 0;
-	attr.kern_version = kern_version;
-	attr.prog_flags = prog_flags;
-
-	fd = sys_bpf_prog_load(&attr, sizeof(attr), PROG_LOAD_ATTEMPTS);
-	return libbpf_err_errno(fd);
-}
-
 int bpf_map_update_elem(int fd, const void *key, const void *value,
 			__u64 flags)
 {
@@ -968,80 +795,48 @@ int bpf_iter_create(int link_fd)
 	return libbpf_err_errno(fd);
 }
 
-int bpf_prog_query(int target_fd, enum bpf_attach_type type, __u32 query_flags,
-		   __u32 *attach_flags, __u32 *prog_ids, __u32 *prog_cnt)
+int bpf_prog_query_opts(int target_fd,
+			enum bpf_attach_type type,
+			struct bpf_prog_query_opts *opts)
 {
 	union bpf_attr attr;
 	int ret;
 
-	memset(&attr, 0, sizeof(attr));
-	attr.query.target_fd	= target_fd;
-	attr.query.attach_type	= type;
-	attr.query.query_flags	= query_flags;
-	attr.query.prog_cnt	= *prog_cnt;
-	attr.query.prog_ids	= ptr_to_u64(prog_ids);
-
-	ret = sys_bpf(BPF_PROG_QUERY, &attr, sizeof(attr));
-
-	if (attach_flags)
-		*attach_flags = attr.query.attach_flags;
-	*prog_cnt = attr.query.prog_cnt;
-
-	return libbpf_err_errno(ret);
-}
-
-int bpf_prog_test_run(int prog_fd, int repeat, void *data, __u32 size,
-		      void *data_out, __u32 *size_out, __u32 *retval,
-		      __u32 *duration)
-{
-	union bpf_attr attr;
-	int ret;
-
-	memset(&attr, 0, sizeof(attr));
-	attr.test.prog_fd = prog_fd;
-	attr.test.data_in = ptr_to_u64(data);
-	attr.test.data_out = ptr_to_u64(data_out);
-	attr.test.data_size_in = size;
-	attr.test.repeat = repeat;
-
-	ret = sys_bpf(BPF_PROG_TEST_RUN, &attr, sizeof(attr));
-
-	if (size_out)
-		*size_out = attr.test.data_size_out;
-	if (retval)
-		*retval = attr.test.retval;
-	if (duration)
-		*duration = attr.test.duration;
-
-	return libbpf_err_errno(ret);
-}
-
-int bpf_prog_test_run_xattr(struct bpf_prog_test_run_attr *test_attr)
-{
-	union bpf_attr attr;
-	int ret;
-
-	if (!test_attr->data_out && test_attr->data_size_out > 0)
+	if (!OPTS_VALID(opts, bpf_prog_query_opts))
 		return libbpf_err(-EINVAL);
 
 	memset(&attr, 0, sizeof(attr));
-	attr.test.prog_fd = test_attr->prog_fd;
-	attr.test.data_in = ptr_to_u64(test_attr->data_in);
-	attr.test.data_out = ptr_to_u64(test_attr->data_out);
-	attr.test.data_size_in = test_attr->data_size_in;
-	attr.test.data_size_out = test_attr->data_size_out;
-	attr.test.ctx_in = ptr_to_u64(test_attr->ctx_in);
-	attr.test.ctx_out = ptr_to_u64(test_attr->ctx_out);
-	attr.test.ctx_size_in = test_attr->ctx_size_in;
-	attr.test.ctx_size_out = test_attr->ctx_size_out;
-	attr.test.repeat = test_attr->repeat;
 
-	ret = sys_bpf(BPF_PROG_TEST_RUN, &attr, sizeof(attr));
+	attr.query.target_fd	= target_fd;
+	attr.query.attach_type	= type;
+	attr.query.query_flags	= OPTS_GET(opts, query_flags, 0);
+	attr.query.prog_cnt	= OPTS_GET(opts, prog_cnt, 0);
+	attr.query.prog_ids	= ptr_to_u64(OPTS_GET(opts, prog_ids, NULL));
+	attr.query.prog_attach_flags = ptr_to_u64(OPTS_GET(opts, prog_attach_flags, NULL));
 
-	test_attr->data_size_out = attr.test.data_size_out;
-	test_attr->ctx_size_out = attr.test.ctx_size_out;
-	test_attr->retval = attr.test.retval;
-	test_attr->duration = attr.test.duration;
+	ret = sys_bpf(BPF_PROG_QUERY, &attr, sizeof(attr));
+
+	OPTS_SET(opts, attach_flags, attr.query.attach_flags);
+	OPTS_SET(opts, prog_cnt, attr.query.prog_cnt);
+
+	return libbpf_err_errno(ret);
+}
+
+int bpf_prog_query(int target_fd, enum bpf_attach_type type, __u32 query_flags,
+		   __u32 *attach_flags, __u32 *prog_ids, __u32 *prog_cnt)
+{
+	LIBBPF_OPTS(bpf_prog_query_opts, opts);
+	int ret;
+
+	opts.query_flags = query_flags;
+	opts.prog_ids = prog_ids;
+	opts.prog_cnt = *prog_cnt;
+
+	ret = bpf_prog_query_opts(target_fd, type, &opts);
+
+	if (attach_flags)
+		*attach_flags = opts.attach_flags;
+	*prog_cnt = opts.prog_cnt;
 
 	return libbpf_err_errno(ret);
 }
@@ -1242,27 +1037,6 @@ int bpf_btf_load(const void *btf_data, size_t btf_size, const struct bpf_btf_loa
 	return libbpf_err_errno(fd);
 }
 
-int bpf_load_btf(const void *btf, __u32 btf_size, char *log_buf, __u32 log_buf_size, bool do_log)
-{
-	LIBBPF_OPTS(bpf_btf_load_opts, opts);
-	int fd;
-
-retry:
-	if (do_log && log_buf && log_buf_size) {
-		opts.log_buf = log_buf;
-		opts.log_size = log_buf_size;
-		opts.log_level = 1;
-	}
-
-	fd = bpf_btf_load(btf, btf_size, &opts);
-	if (fd < 0 && !do_log && log_buf && log_buf_size) {
-		do_log = true;
-		goto retry;
-	}
-
-	return libbpf_err_errno(fd);
-}
-
 int bpf_task_fd_query(int pid, int fd, __u32 flags, char *buf, __u32 *buf_len,
 		      __u32 *prog_id, __u32 *fd_type, __u64 *probe_offset,
 		      __u64 *probe_addr)

src/bpf.h

@@ -61,48 +61,6 @@ LIBBPF_API int bpf_map_create(enum bpf_map_type map_type,
 			      __u32 max_entries,
 			      const struct bpf_map_create_opts *opts);
 
-struct bpf_create_map_attr {
-	const char *name;
-	enum bpf_map_type map_type;
-	__u32 map_flags;
-	__u32 key_size;
-	__u32 value_size;
-	__u32 max_entries;
-	__u32 numa_node;
-	__u32 btf_fd;
-	__u32 btf_key_type_id;
-	__u32 btf_value_type_id;
-	__u32 map_ifindex;
-	union {
-		__u32 inner_map_fd;
-		__u32 btf_vmlinux_value_type_id;
-	};
-};
-
-LIBBPF_DEPRECATED_SINCE(0, 7, "use bpf_map_create() instead")
-LIBBPF_API int bpf_create_map_xattr(const struct bpf_create_map_attr *create_attr);
-LIBBPF_DEPRECATED_SINCE(0, 7, "use bpf_map_create() instead")
-LIBBPF_API int bpf_create_map_node(enum bpf_map_type map_type, const char *name,
-				   int key_size, int value_size,
-				   int max_entries, __u32 map_flags, int node);
-LIBBPF_DEPRECATED_SINCE(0, 7, "use bpf_map_create() instead")
-LIBBPF_API int bpf_create_map_name(enum bpf_map_type map_type, const char *name,
-				   int key_size, int value_size,
-				   int max_entries, __u32 map_flags);
-LIBBPF_DEPRECATED_SINCE(0, 7, "use bpf_map_create() instead")
-LIBBPF_API int bpf_create_map(enum bpf_map_type map_type, int key_size,
-			      int value_size, int max_entries, __u32 map_flags);
-LIBBPF_DEPRECATED_SINCE(0, 7, "use bpf_map_create() instead")
-LIBBPF_API int bpf_create_map_in_map_node(enum bpf_map_type map_type,
-					  const char *name, int key_size,
-					  int inner_map_fd, int max_entries,
-					  __u32 map_flags, int node);
-LIBBPF_DEPRECATED_SINCE(0, 7, "use bpf_map_create() instead")
-LIBBPF_API int bpf_create_map_in_map(enum bpf_map_type map_type,
-				     const char *name, int key_size,
-				     int inner_map_fd, int max_entries,
-				     __u32 map_flags);
-
 struct bpf_prog_load_opts {
 	size_t sz; /* size of this struct for forward/backward compatibility */
 
@@ -145,54 +103,6 @@ LIBBPF_API int bpf_prog_load(enum bpf_prog_type prog_type,
 			     const char *prog_name, const char *license,
 			     const struct bpf_insn *insns, size_t insn_cnt,
 			     const struct bpf_prog_load_opts *opts);
-/* this "specialization" should go away in libbpf 1.0 */
-LIBBPF_API int bpf_prog_load_v0_6_0(enum bpf_prog_type prog_type,
-				    const char *prog_name, const char *license,
-				    const struct bpf_insn *insns, size_t insn_cnt,
-				    const struct bpf_prog_load_opts *opts);
-
-/* This is an elaborate way to not conflict with deprecated bpf_prog_load()
- * API, defined in libbpf.h. Once we hit libbpf 1.0, all this will be gone.
- * With this approach, if someone is calling bpf_prog_load() with
- * 4 arguments, they will use the deprecated API, which keeps backwards
- * compatibility (both source code and binary). If bpf_prog_load() is called
- * with 6 arguments, though, it gets redirected to __bpf_prog_load.
- * So looking forward to libbpf 1.0 when this hack will be gone and
- * __bpf_prog_load() will be called just bpf_prog_load().
- */
-#ifndef bpf_prog_load
-#define bpf_prog_load(...) ___libbpf_overload(___bpf_prog_load, __VA_ARGS__)
-#define ___bpf_prog_load4(file, type, pobj, prog_fd) \
-	bpf_prog_load_deprecated(file, type, pobj, prog_fd)
-#define ___bpf_prog_load6(prog_type, prog_name, license, insns, insn_cnt, opts) \
-	bpf_prog_load(prog_type, prog_name, license, insns, insn_cnt, opts)
-#endif /* bpf_prog_load */
-
-struct bpf_load_program_attr {
-	enum bpf_prog_type prog_type;
-	enum bpf_attach_type expected_attach_type;
-	const char *name;
-	const struct bpf_insn *insns;
-	size_t insns_cnt;
-	const char *license;
-	union {
-		__u32 kern_version;
-		__u32 attach_prog_fd;
-	};
-	union {
-		__u32 prog_ifindex;
-		__u32 attach_btf_id;
-	};
-	__u32 prog_btf_fd;
-	__u32 func_info_rec_size;
-	const void *func_info;
-	__u32 func_info_cnt;
-	__u32 line_info_rec_size;
-	const void *line_info;
-	__u32 line_info_cnt;
-	__u32 log_level;
-	__u32 prog_flags;
-};
 
 /* Flags to direct loading requirements */
 #define MAPS_RELAX_COMPAT	0x01
@@ -200,22 +110,6 @@ struct bpf_load_program_attr {
 /* Recommended log buffer size */
 #define BPF_LOG_BUF_SIZE (UINT32_MAX >> 8) /* verifier maximum in kernels <= 5.1 */
 
-LIBBPF_DEPRECATED_SINCE(0, 7, "use bpf_prog_load() instead")
-LIBBPF_API int bpf_load_program_xattr(const struct bpf_load_program_attr *load_attr,
-				      char *log_buf, size_t log_buf_sz);
-LIBBPF_DEPRECATED_SINCE(0, 7, "use bpf_prog_load() instead")
-LIBBPF_API int bpf_load_program(enum bpf_prog_type type,
-				const struct bpf_insn *insns, size_t insns_cnt,
-				const char *license, __u32 kern_version,
-				char *log_buf, size_t log_buf_sz);
-LIBBPF_DEPRECATED_SINCE(0, 7, "use bpf_prog_load() instead")
-LIBBPF_API int bpf_verify_program(enum bpf_prog_type type,
-				  const struct bpf_insn *insns,
-				  size_t insns_cnt, __u32 prog_flags,
-				  const char *license, __u32 kern_version,
-				  char *log_buf, size_t log_buf_sz,
-				  int log_level);
-
 struct bpf_btf_load_opts {
 	size_t sz; /* size of this struct for forward/backward compatibility */
 
@@ -229,10 +123,6 @@ struct bpf_btf_load_opts {
 LIBBPF_API int bpf_btf_load(const void *btf_data, size_t btf_size,
 			    const struct bpf_btf_load_opts *opts);
 
-LIBBPF_DEPRECATED_SINCE(0, 8, "use bpf_btf_load() instead")
-LIBBPF_API int bpf_load_btf(const void *btf, __u32 btf_size, char *log_buf,
-			    __u32 log_buf_size, bool do_log);
-
 LIBBPF_API int bpf_map_update_elem(int fd, const void *key, const void *value,
 				   __u64 flags);
 
@@ -395,10 +285,6 @@ LIBBPF_API int bpf_prog_attach(int prog_fd, int attachable_fd,
 LIBBPF_API int bpf_prog_attach_opts(int prog_fd, int attachable_fd,
 				     enum bpf_attach_type type,
 				     const struct bpf_prog_attach_opts *opts);
-LIBBPF_DEPRECATED_SINCE(0, 8, "use bpf_prog_attach_opts() instead")
-LIBBPF_API int bpf_prog_attach_xattr(int prog_fd, int attachable_fd,
-				     enum bpf_attach_type type,
-				     const struct bpf_prog_attach_opts *opts);
 LIBBPF_API int bpf_prog_detach(int attachable_fd, enum bpf_attach_type type);
 LIBBPF_API int bpf_prog_detach2(int prog_fd, int attachable_fd,
 				enum bpf_attach_type type);
@@ -464,17 +350,6 @@ struct bpf_prog_test_run_attr {
 			     * out: length of cxt_out */
 };
 
-LIBBPF_DEPRECATED_SINCE(0, 7, "use bpf_prog_test_run_opts() instead")
-LIBBPF_API int bpf_prog_test_run_xattr(struct bpf_prog_test_run_attr *test_attr);
-
-/*
- * bpf_prog_test_run does not check that data_out is large enough. Consider
- * using bpf_prog_test_run_opts instead.
- */
-LIBBPF_DEPRECATED_SINCE(0, 7, "use bpf_prog_test_run_opts() instead")
-LIBBPF_API int bpf_prog_test_run(int prog_fd, int repeat, void *data,
-				 __u32 size, void *data_out, __u32 *size_out,
-				 __u32 *retval, __u32 *duration);
 LIBBPF_API int bpf_prog_get_next_id(__u32 start_id, __u32 *next_id);
 LIBBPF_API int bpf_map_get_next_id(__u32 start_id, __u32 *next_id);
 LIBBPF_API int bpf_btf_get_next_id(__u32 start_id, __u32 *next_id);
@@ -484,9 +359,24 @@ LIBBPF_API int bpf_map_get_fd_by_id(__u32 id);
 LIBBPF_API int bpf_btf_get_fd_by_id(__u32 id);
 LIBBPF_API int bpf_link_get_fd_by_id(__u32 id);
 LIBBPF_API int bpf_obj_get_info_by_fd(int bpf_fd, void *info, __u32 *info_len);
+
+struct bpf_prog_query_opts {
+	size_t sz; /* size of this struct for forward/backward compatibility */
+	__u32 query_flags;
+	__u32 attach_flags; /* output argument */
+	__u32 *prog_ids;
+	__u32 prog_cnt; /* input+output argument */
+	__u32 *prog_attach_flags;
+};
+#define bpf_prog_query_opts__last_field prog_attach_flags
+
+LIBBPF_API int bpf_prog_query_opts(int target_fd,
+				   enum bpf_attach_type type,
+				   struct bpf_prog_query_opts *opts);
 LIBBPF_API int bpf_prog_query(int target_fd, enum bpf_attach_type type,
 			      __u32 query_flags, __u32 *attach_flags,
 			      __u32 *prog_ids, __u32 *prog_cnt);
+
 LIBBPF_API int bpf_raw_tracepoint_open(const char *name, int prog_fd);
 LIBBPF_API int bpf_task_fd_query(int pid, int fd, __u32 flags, char *buf,
 				 __u32 *buf_len, __u32 *prog_id, __u32 *fd_type,

src/bpf_helper_defs.h

@@ -38,6 +38,10 @@ struct inode;
 struct socket;
 struct file;
 struct bpf_timer;
+struct mptcp_sock;
+struct bpf_dynptr;
+struct iphdr;
+struct ipv6hdr;
 
 /*
  * bpf_map_lookup_elem
@@ -2461,10 +2465,11 @@ static struct bpf_sock *(*bpf_skc_lookup_tcp)(void *ctx, struct bpf_sock_tuple *
  *
  * 	*iph* points to the start of the IPv4 or IPv6 header, while
  * 	*iph_len* contains **sizeof**\ (**struct iphdr**) or
- * 	**sizeof**\ (**struct ip6hdr**).
+ * 	**sizeof**\ (**struct ipv6hdr**).
  *
  * 	*th* points to the start of the TCP header, while *th_len*
- * 	contains **sizeof**\ (**struct tcphdr**).
+ * 	contains the length of the TCP header (at least
+ * 	**sizeof**\ (**struct tcphdr**)).
  *
  * Returns
  * 	0 if *iph* and *th* are a valid SYN cookie ACK, or a negative
@@ -2687,10 +2692,11 @@ static long (*bpf_send_signal)(__u32 sig) = (void *) 109;
  *
  * 	*iph* points to the start of the IPv4 or IPv6 header, while
  * 	*iph_len* contains **sizeof**\ (**struct iphdr**) or
- * 	**sizeof**\ (**struct ip6hdr**).
+ * 	**sizeof**\ (**struct ipv6hdr**).
  *
  * 	*th* points to the start of the TCP header, while *th_len*
- * 	contains the length of the TCP header.
+ * 	contains the length of the TCP header with options (at least
+ * 	**sizeof**\ (**struct tcphdr**)).
  *
  * Returns
  * 	On success, lower 32 bits hold the generated SYN cookie in
@@ -4370,4 +4376,203 @@ static void *(*bpf_kptr_xchg)(void *map_value, void *ptr) = (void *) 194;
  */
 static void *(*bpf_map_lookup_percpu_elem)(void *map, const void *key, __u32 cpu) = (void *) 195;
 
+/*
+ * bpf_skc_to_mptcp_sock
+ *
+ * 	Dynamically cast a *sk* pointer to a *mptcp_sock* pointer.
+ *
+ * Returns
+ * 	*sk* if casting is valid, or **NULL** otherwise.
+ */
+static struct mptcp_sock *(*bpf_skc_to_mptcp_sock)(void *sk) = (void *) 196;
+
+/*
+ * bpf_dynptr_from_mem
+ *
+ * 	Get a dynptr to local memory *data*.
+ *
+ * 	*data* must be a ptr to a map value.
+ * 	The maximum *size* supported is DYNPTR_MAX_SIZE.
+ * 	*flags* is currently unused.
+ *
+ * Returns
+ * 	0 on success, -E2BIG if the size exceeds DYNPTR_MAX_SIZE,
+ * 	-EINVAL if flags is not 0.
+ */
+static long (*bpf_dynptr_from_mem)(void *data, __u32 size, __u64 flags, struct bpf_dynptr *ptr) = (void *) 197;
+
+/*
+ * bpf_ringbuf_reserve_dynptr
+ *
+ * 	Reserve *size* bytes of payload in a ring buffer *ringbuf*
+ * 	through the dynptr interface. *flags* must be 0.
+ *
+ * 	Please note that a corresponding bpf_ringbuf_submit_dynptr or
+ * 	bpf_ringbuf_discard_dynptr must be called on *ptr*, even if the
+ * 	reservation fails. This is enforced by the verifier.
+ *
+ * Returns
+ * 	0 on success, or a negative error in case of failure.
+ */
+static long (*bpf_ringbuf_reserve_dynptr)(void *ringbuf, __u32 size, __u64 flags, struct bpf_dynptr *ptr) = (void *) 198;
+
+/*
+ * bpf_ringbuf_submit_dynptr
+ *
+ * 	Submit reserved ring buffer sample, pointed to by *data*,
+ * 	through the dynptr interface. This is a no-op if the dynptr is
+ * 	invalid/null.
+ *
+ * 	For more information on *flags*, please see
+ * 	'bpf_ringbuf_submit'.
+ *
+ * Returns
+ * 	Nothing. Always succeeds.
+ */
+static void (*bpf_ringbuf_submit_dynptr)(struct bpf_dynptr *ptr, __u64 flags) = (void *) 199;
+
+/*
+ * bpf_ringbuf_discard_dynptr
+ *
+ * 	Discard reserved ring buffer sample through the dynptr
+ * 	interface. This is a no-op if the dynptr is invalid/null.
+ *
+ * 	For more information on *flags*, please see
+ * 	'bpf_ringbuf_discard'.
+ *
+ * Returns
+ * 	Nothing. Always succeeds.
+ */
+static void (*bpf_ringbuf_discard_dynptr)(struct bpf_dynptr *ptr, __u64 flags) = (void *) 200;
+
+/*
+ * bpf_dynptr_read
+ *
+ * 	Read *len* bytes from *src* into *dst*, starting from *offset*
+ * 	into *src*.
+ *
+ * Returns
+ * 	0 on success, -E2BIG if *offset* + *len* exceeds the length
+ * 	of *src*'s data, -EINVAL if *src* is an invalid dynptr.
+ */
+static long (*bpf_dynptr_read)(void *dst, __u32 len, struct bpf_dynptr *src, __u32 offset) = (void *) 201;
+
+/*
+ * bpf_dynptr_write
+ *
+ * 	Write *len* bytes from *src* into *dst*, starting from *offset*
+ * 	into *dst*.
+ *
+ * Returns
+ * 	0 on success, -E2BIG if *offset* + *len* exceeds the length
+ * 	of *dst*'s data, -EINVAL if *dst* is an invalid dynptr or if *dst*
+ * 	is a read-only dynptr.
+ */
+static long (*bpf_dynptr_write)(struct bpf_dynptr *dst, __u32 offset, void *src, __u32 len) = (void *) 202;
+
+/*
+ * bpf_dynptr_data
+ *
+ * 	Get a pointer to the underlying dynptr data.
+ *
+ * 	*len* must be a statically known value. The returned data slice
+ * 	is invalidated whenever the dynptr is invalidated.
+ *
+ * Returns
+ * 	Pointer to the underlying dynptr data, NULL if the dynptr is
+ * 	read-only, if the dynptr is invalid, or if the offset and length
+ * 	is out of bounds.
+ */
+static void *(*bpf_dynptr_data)(struct bpf_dynptr *ptr, __u32 offset, __u32 len) = (void *) 203;
+
+/*
+ * bpf_tcp_raw_gen_syncookie_ipv4
+ *
+ * 	Try to issue a SYN cookie for the packet with corresponding
+ * 	IPv4/TCP headers, *iph* and *th*, without depending on a
+ * 	listening socket.
+ *
+ * 	*iph* points to the IPv4 header.
+ *
+ * 	*th* points to the start of the TCP header, while *th_len*
+ * 	contains the length of the TCP header (at least
+ * 	**sizeof**\ (**struct tcphdr**)).
+ *
+ * Returns
+ * 	On success, lower 32 bits hold the generated SYN cookie in
+ * 	followed by 16 bits which hold the MSS value for that cookie,
+ * 	and the top 16 bits are unused.
+ *
+ * 	On failure, the returned value is one of the following:
+ *
+ * 	**-EINVAL** if *th_len* is invalid.
+ */
+static __s64 (*bpf_tcp_raw_gen_syncookie_ipv4)(struct iphdr *iph, struct tcphdr *th, __u32 th_len) = (void *) 204;
+
+/*
+ * bpf_tcp_raw_gen_syncookie_ipv6
+ *
+ * 	Try to issue a SYN cookie for the packet with corresponding
+ * 	IPv6/TCP headers, *iph* and *th*, without depending on a
+ * 	listening socket.
+ *
+ * 	*iph* points to the IPv6 header.
+ *
+ * 	*th* points to the start of the TCP header, while *th_len*
+ * 	contains the length of the TCP header (at least
+ * 	**sizeof**\ (**struct tcphdr**)).
+ *
+ * Returns
+ * 	On success, lower 32 bits hold the generated SYN cookie in
+ * 	followed by 16 bits which hold the MSS value for that cookie,
+ * 	and the top 16 bits are unused.
+ *
+ * 	On failure, the returned value is one of the following:
+ *
+ * 	**-EINVAL** if *th_len* is invalid.
+ *
+ * 	**-EPROTONOSUPPORT** if CONFIG_IPV6 is not builtin.
+ */
+static __s64 (*bpf_tcp_raw_gen_syncookie_ipv6)(struct ipv6hdr *iph, struct tcphdr *th, __u32 th_len) = (void *) 205;
+
+/*
+ * bpf_tcp_raw_check_syncookie_ipv4
+ *
+ * 	Check whether *iph* and *th* contain a valid SYN cookie ACK
+ * 	without depending on a listening socket.
+ *
+ * 	*iph* points to the IPv4 header.
+ *
+ * 	*th* points to the TCP header.
+ *
+ * Returns
+ * 	0 if *iph* and *th* are a valid SYN cookie ACK.
+ *
+ * 	On failure, the returned value is one of the following:
+ *
+ * 	**-EACCES** if the SYN cookie is not valid.
+ */
+static long (*bpf_tcp_raw_check_syncookie_ipv4)(struct iphdr *iph, struct tcphdr *th) = (void *) 206;
+
+/*
+ * bpf_tcp_raw_check_syncookie_ipv6
+ *
+ * 	Check whether *iph* and *th* contain a valid SYN cookie ACK
+ * 	without depending on a listening socket.
+ *
+ * 	*iph* points to the IPv6 header.
+ *
+ * 	*th* points to the TCP header.
+ *
+ * Returns
+ * 	0 if *iph* and *th* are a valid SYN cookie ACK.
+ *
+ * 	On failure, the returned value is one of the following:
+ *
+ * 	**-EACCES** if the SYN cookie is not valid.
+ *
+ * 	**-EPROTONOSUPPORT** if CONFIG_IPV6 is not builtin.
+ */
+static long (*bpf_tcp_raw_check_syncookie_ipv6)(struct ipv6hdr *iph, struct tcphdr *th) = (void *) 207;
+
 

src/btf.c

@@ -130,7 +130,7 @@ static inline __u64 ptr_to_u64(const void *ptr)
 
 /* Ensure given dynamically allocated memory region pointed to by *data* with
  * capacity of *cap_cnt* elements each taking *elem_sz* bytes has enough
- * memory to accomodate *add_cnt* new elements, assuming *cur_cnt* elements
+ * memory to accommodate *add_cnt* new elements, assuming *cur_cnt* elements
  * are already used. At most *max_cnt* elements can be ever allocated.
  * If necessary, memory is reallocated and all existing data is copied over,
  * new pointer to the memory region is stored at *data, new memory region
@@ -305,6 +305,8 @@ static int btf_type_size(const struct btf_type *t)
 		return base_size + sizeof(__u32);
 	case BTF_KIND_ENUM:
 		return base_size + vlen * sizeof(struct btf_enum);
+	case BTF_KIND_ENUM64:
+		return base_size + vlen * sizeof(struct btf_enum64);
 	case BTF_KIND_ARRAY:
 		return base_size + sizeof(struct btf_array);
 	case BTF_KIND_STRUCT:
@@ -334,6 +336,7 @@ static void btf_bswap_type_base(struct btf_type *t)
 static int btf_bswap_type_rest(struct btf_type *t)
 {
 	struct btf_var_secinfo *v;
+	struct btf_enum64 *e64;
 	struct btf_member *m;
 	struct btf_array *a;
 	struct btf_param *p;
@@ -361,6 +364,13 @@ static int btf_bswap_type_rest(struct btf_type *t)
 			e->val = bswap_32(e->val);
 		}
 		return 0;
+	case BTF_KIND_ENUM64:
+		for (i = 0, e64 = btf_enum64(t); i < vlen; i++, e64++) {
+			e64->name_off = bswap_32(e64->name_off);
+			e64->val_lo32 = bswap_32(e64->val_lo32);
+			e64->val_hi32 = bswap_32(e64->val_hi32);
+		}
+		return 0;
 	case BTF_KIND_ARRAY:
 		a = btf_array(t);
 		a->type = bswap_32(a->type);
@@ -438,11 +448,6 @@ static int btf_parse_type_sec(struct btf *btf)
 	return 0;
 }
 
-__u32 btf__get_nr_types(const struct btf *btf)
-{
-	return btf->start_id + btf->nr_types - 1;
-}
-
 __u32 btf__type_cnt(const struct btf *btf)
 {
 	return btf->start_id + btf->nr_types;
@@ -472,9 +477,22 @@ const struct btf_type *btf__type_by_id(const struct btf *btf, __u32 type_id)
 
 static int determine_ptr_size(const struct btf *btf)
 {
+	static const char * const long_aliases[] = {
+		"long",
+		"long int",
+		"int long",
+		"unsigned long",
+		"long unsigned",
+		"unsigned long int",
+		"unsigned int long",
+		"long unsigned int",
+		"long int unsigned",
+		"int unsigned long",
+		"int long unsigned",
+	};
 	const struct btf_type *t;
 	const char *name;
-	int i, n;
+	int i, j, n;
 
 	if (btf->base_btf && btf->base_btf->ptr_sz > 0)
 		return btf->base_btf->ptr_sz;
@@ -485,15 +503,16 @@ static int determine_ptr_size(const struct btf *btf)
 		if (!btf_is_int(t))
 			continue;
 
+		if (t->size != 4 && t->size != 8)
+			continue;
+
 		name = btf__name_by_offset(btf, t->name_off);
 		if (!name)
 			continue;
 
-		if (strcmp(name, "long int") == 0 ||
-		    strcmp(name, "long unsigned int") == 0) {
-			if (t->size != 4 && t->size != 8)
-				continue;
-			return t->size;
+		for (j = 0; j < ARRAY_SIZE(long_aliases); j++) {
+			if (strcmp(name, long_aliases[j]) == 0)
+				return t->size;
 		}
 	}
 
@@ -597,6 +616,7 @@ __s64 btf__resolve_size(const struct btf *btf, __u32 type_id)
 		case BTF_KIND_STRUCT:
 		case BTF_KIND_UNION:
 		case BTF_KIND_ENUM:
+		case BTF_KIND_ENUM64:
 		case BTF_KIND_DATASEC:
 		case BTF_KIND_FLOAT:
 			size = t->size;
@@ -644,6 +664,7 @@ int btf__align_of(const struct btf *btf, __u32 id)
 	switch (kind) {
 	case BTF_KIND_INT:
 	case BTF_KIND_ENUM:
+	case BTF_KIND_ENUM64:
 	case BTF_KIND_FLOAT:
 		return min(btf_ptr_sz(btf), (size_t)t->size);
 	case BTF_KIND_PTR:
@@ -1382,92 +1403,6 @@ struct btf *btf__load_from_kernel_by_id(__u32 id)
 	return btf__load_from_kernel_by_id_split(id, NULL);
 }
 
-int btf__get_from_id(__u32 id, struct btf **btf)
-{
-	struct btf *res;
-	int err;
-
-	*btf = NULL;
-	res = btf__load_from_kernel_by_id(id);
-	err = libbpf_get_error(res);
-
-	if (err)
-		return libbpf_err(err);
-
-	*btf = res;
-	return 0;
-}
-
-int btf__get_map_kv_tids(const struct btf *btf, const char *map_name,
-			 __u32 expected_key_size, __u32 expected_value_size,
-			 __u32 *key_type_id, __u32 *value_type_id)
-{
-	const struct btf_type *container_type;
-	const struct btf_member *key, *value;
-	const size_t max_name = 256;
-	char container_name[max_name];
-	__s64 key_size, value_size;
-	__s32 container_id;
-
-	if (snprintf(container_name, max_name, "____btf_map_%s", map_name) == max_name) {
-		pr_warn("map:%s length of '____btf_map_%s' is too long\n",
-			map_name, map_name);
-		return libbpf_err(-EINVAL);
-	}
-
-	container_id = btf__find_by_name(btf, container_name);
-	if (container_id < 0) {
-		pr_debug("map:%s container_name:%s cannot be found in BTF. Missing BPF_ANNOTATE_KV_PAIR?\n",
-			 map_name, container_name);
-		return libbpf_err(container_id);
-	}
-
-	container_type = btf__type_by_id(btf, container_id);
-	if (!container_type) {
-		pr_warn("map:%s cannot find BTF type for container_id:%u\n",
-			map_name, container_id);
-		return libbpf_err(-EINVAL);
-	}
-
-	if (!btf_is_struct(container_type) || btf_vlen(container_type) < 2) {
-		pr_warn("map:%s container_name:%s is an invalid container struct\n",
-			map_name, container_name);
-		return libbpf_err(-EINVAL);
-	}
-
-	key = btf_members(container_type);
-	value = key + 1;
-
-	key_size = btf__resolve_size(btf, key->type);
-	if (key_size < 0) {
-		pr_warn("map:%s invalid BTF key_type_size\n", map_name);
-		return libbpf_err(key_size);
-	}
-
-	if (expected_key_size != key_size) {
-		pr_warn("map:%s btf_key_type_size:%u != map_def_key_size:%u\n",
-			map_name, (__u32)key_size, expected_key_size);
-		return libbpf_err(-EINVAL);
-	}
-
-	value_size = btf__resolve_size(btf, value->type);
-	if (value_size < 0) {
-		pr_warn("map:%s invalid BTF value_type_size\n", map_name);
-		return libbpf_err(value_size);
-	}
-
-	if (expected_value_size != value_size) {
-		pr_warn("map:%s btf_value_type_size:%u != map_def_value_size:%u\n",
-			map_name, (__u32)value_size, expected_value_size);
-		return libbpf_err(-EINVAL);
-	}
-
-	*key_type_id = key->type;
-	*value_type_id = value->type;
-
-	return 0;
-}
-
 static void btf_invalidate_raw_data(struct btf *btf)
 {
 	if (btf->raw_data) {
@@ -2115,20 +2050,8 @@ int btf__add_field(struct btf *btf, const char *name, int type_id,
 	return 0;
 }
 
-/*
- * Append new BTF_KIND_ENUM type with:
- *   - *name* - name of the enum, can be NULL or empty for anonymous enums;
- *   - *byte_sz* - size of the enum, in bytes.
- *
- * Enum initially has no enum values in it (and corresponds to enum forward
- * declaration). Enumerator values can be added by btf__add_enum_value()
- * immediately after btf__add_enum() succeeds.
- *
- * Returns:
- *   - >0, type ID of newly added BTF type;
- *   - <0, on error.
- */
-int btf__add_enum(struct btf *btf, const char *name, __u32 byte_sz)
+static int btf_add_enum_common(struct btf *btf, const char *name, __u32 byte_sz,
+			       bool is_signed, __u8 kind)
 {
 	struct btf_type *t;
 	int sz, name_off = 0;
@@ -2153,12 +2076,34 @@ int btf__add_enum(struct btf *btf, const char *name, __u32 byte_sz)
 
 	/* start out with vlen=0; it will be adjusted when adding enum values */
 	t->name_off = name_off;
-	t->info = btf_type_info(BTF_KIND_ENUM, 0, 0);
+	t->info = btf_type_info(kind, 0, is_signed);
 	t->size = byte_sz;
 
 	return btf_commit_type(btf, sz);
 }
 
+/*
+ * Append new BTF_KIND_ENUM type with:
+ *   - *name* - name of the enum, can be NULL or empty for anonymous enums;
+ *   - *byte_sz* - size of the enum, in bytes.
+ *
+ * Enum initially has no enum values in it (and corresponds to enum forward
+ * declaration). Enumerator values can be added by btf__add_enum_value()
+ * immediately after btf__add_enum() succeeds.
+ *
+ * Returns:
+ *   - >0, type ID of newly added BTF type;
+ *   - <0, on error.
+ */
+int btf__add_enum(struct btf *btf, const char *name, __u32 byte_sz)
+{
+	/*
+	 * set the signedness to be unsigned, it will change to signed
+	 * if any later enumerator is negative.
+	 */
+	return btf_add_enum_common(btf, name, byte_sz, false, BTF_KIND_ENUM);
+}
+
 /*
  * Append new enum value for the current ENUM type with:
  *   - *name* - name of the enumerator value, can't be NULL or empty;
@@ -2206,6 +2151,82 @@ int btf__add_enum_value(struct btf *btf, const char *name, __s64 value)
 	t = btf_last_type(btf);
 	btf_type_inc_vlen(t);
 
+	/* if negative value, set signedness to signed */
+	if (value < 0)
+		t->info = btf_type_info(btf_kind(t), btf_vlen(t), true);
+
+	btf->hdr->type_len += sz;
+	btf->hdr->str_off += sz;
+	return 0;
+}
+
+/*
+ * Append new BTF_KIND_ENUM64 type with:
+ *   - *name* - name of the enum, can be NULL or empty for anonymous enums;
+ *   - *byte_sz* - size of the enum, in bytes.
+ *   - *is_signed* - whether the enum values are signed or not;
+ *
+ * Enum initially has no enum values in it (and corresponds to enum forward
+ * declaration). Enumerator values can be added by btf__add_enum64_value()
+ * immediately after btf__add_enum64() succeeds.
+ *
+ * Returns:
+ *   - >0, type ID of newly added BTF type;
+ *   - <0, on error.
+ */
+int btf__add_enum64(struct btf *btf, const char *name, __u32 byte_sz,
+		    bool is_signed)
+{
+	return btf_add_enum_common(btf, name, byte_sz, is_signed,
+				   BTF_KIND_ENUM64);
+}
+
+/*
+ * Append new enum value for the current ENUM64 type with:
+ *   - *name* - name of the enumerator value, can't be NULL or empty;
+ *   - *value* - integer value corresponding to enum value *name*;
+ * Returns:
+ *   -  0, on success;
+ *   - <0, on error.
+ */
+int btf__add_enum64_value(struct btf *btf, const char *name, __u64 value)
+{
+	struct btf_enum64 *v;
+	struct btf_type *t;
+	int sz, name_off;
+
+	/* last type should be BTF_KIND_ENUM64 */
+	if (btf->nr_types == 0)
+		return libbpf_err(-EINVAL);
+	t = btf_last_type(btf);
+	if (!btf_is_enum64(t))
+		return libbpf_err(-EINVAL);
+
+	/* non-empty name */
+	if (!name || !name[0])
+		return libbpf_err(-EINVAL);
+
+	/* decompose and invalidate raw data */
+	if (btf_ensure_modifiable(btf))
+		return libbpf_err(-ENOMEM);
+
+	sz = sizeof(struct btf_enum64);
+	v = btf_add_type_mem(btf, sz);
+	if (!v)
+		return libbpf_err(-ENOMEM);
+
+	name_off = btf__add_str(btf, name);
+	if (name_off < 0)
+		return name_off;
+
+	v->name_off = name_off;
+	v->val_lo32 = (__u32)value;
+	v->val_hi32 = value >> 32;
+
+	/* update parent type's vlen */
+	t = btf_last_type(btf);
+	btf_type_inc_vlen(t);
+
 	btf->hdr->type_len += sz;
 	btf->hdr->str_off += sz;
 	return 0;
@@ -2853,81 +2874,6 @@ const void *btf_ext__get_raw_data(const struct btf_ext *btf_ext, __u32 *size)
 	return btf_ext->data;
 }
 
-static int btf_ext_reloc_info(const struct btf *btf,
-			      const struct btf_ext_info *ext_info,
-			      const char *sec_name, __u32 insns_cnt,
-			      void **info, __u32 *cnt)
-{
-	__u32 sec_hdrlen = sizeof(struct btf_ext_info_sec);
-	__u32 i, record_size, existing_len, records_len;
-	struct btf_ext_info_sec *sinfo;
-	const char *info_sec_name;
-	__u64 remain_len;
-	void *data;
-
-	record_size = ext_info->rec_size;
-	sinfo = ext_info->info;
-	remain_len = ext_info->len;
-	while (remain_len > 0) {
-		records_len = sinfo->num_info * record_size;
-		info_sec_name = btf__name_by_offset(btf, sinfo->sec_name_off);
-		if (strcmp(info_sec_name, sec_name)) {
-			remain_len -= sec_hdrlen + records_len;
-			sinfo = (void *)sinfo + sec_hdrlen + records_len;
-			continue;
-		}
-
-		existing_len = (*cnt) * record_size;
-		data = realloc(*info, existing_len + records_len);
-		if (!data)
-			return libbpf_err(-ENOMEM);
-
-		memcpy(data + existing_len, sinfo->data, records_len);
-		/* adjust insn_off only, the rest data will be passed
-		 * to the kernel.
-		 */
-		for (i = 0; i < sinfo->num_info; i++) {
-			__u32 *insn_off;
-
-			insn_off = data + existing_len + (i * record_size);
-			*insn_off = *insn_off / sizeof(struct bpf_insn) + insns_cnt;
-		}
-		*info = data;
-		*cnt += sinfo->num_info;
-		return 0;
-	}
-
-	return libbpf_err(-ENOENT);
-}
-
-int btf_ext__reloc_func_info(const struct btf *btf,
-			     const struct btf_ext *btf_ext,
-			     const char *sec_name, __u32 insns_cnt,
-			     void **func_info, __u32 *cnt)
-{
-	return btf_ext_reloc_info(btf, &btf_ext->func_info, sec_name,
-				  insns_cnt, func_info, cnt);
-}
-
-int btf_ext__reloc_line_info(const struct btf *btf,
-			     const struct btf_ext *btf_ext,
-			     const char *sec_name, __u32 insns_cnt,
-			     void **line_info, __u32 *cnt)
-{
-	return btf_ext_reloc_info(btf, &btf_ext->line_info, sec_name,
-				  insns_cnt, line_info, cnt);
-}
-
-__u32 btf_ext__func_info_rec_size(const struct btf_ext *btf_ext)
-{
-	return btf_ext->func_info.rec_size;
-}
-
-__u32 btf_ext__line_info_rec_size(const struct btf_ext *btf_ext)
-{
-	return btf_ext->line_info.rec_size;
-}
-
 struct btf_dedup;
 
 static struct btf_dedup *btf_dedup_new(struct btf *btf, const struct btf_dedup_opts *opts);
@@ -3077,9 +3023,7 @@ static int btf_dedup_remap_types(struct btf_dedup *d);
  * deduplicating structs/unions is described in greater details in comments for
  * `btf_dedup_is_equiv` function.
  */
-
-DEFAULT_VERSION(btf__dedup_v0_6_0, btf__dedup, LIBBPF_0.6.0)
-int btf__dedup_v0_6_0(struct btf *btf, const struct btf_dedup_opts *opts)
+int btf__dedup(struct btf *btf, const struct btf_dedup_opts *opts)
 {
 	struct btf_dedup *d;
 	int err;
@@ -3139,19 +3083,6 @@ done:
 	return libbpf_err(err);
 }
 
-COMPAT_VERSION(btf__dedup_deprecated, btf__dedup, LIBBPF_0.0.2)
-int btf__dedup_deprecated(struct btf *btf, struct btf_ext *btf_ext, const void *unused_opts)
-{
-	LIBBPF_OPTS(btf_dedup_opts, opts, .btf_ext = btf_ext);
-
-	if (unused_opts) {
-		pr_warn("please use new version of btf__dedup() that supports options\n");
-		return libbpf_err(-ENOTSUP);
-	}
-
-	return btf__dedup(btf, &opts);
-}
-
 #define BTF_UNPROCESSED_ID ((__u32)-1)
 #define BTF_IN_PROGRESS_ID ((__u32)-2)
 
@@ -3470,7 +3401,7 @@ static bool btf_equal_int_tag(struct btf_type *t1, struct btf_type *t2)
 	return info1 == info2;
 }
 
-/* Calculate type signature hash of ENUM. */
+/* Calculate type signature hash of ENUM/ENUM64. */
 static long btf_hash_enum(struct btf_type *t)
 {
 	long h;
@@ -3504,9 +3435,31 @@ static bool btf_equal_enum(struct btf_type *t1, struct btf_type *t2)
 	return true;
 }
 
+static bool btf_equal_enum64(struct btf_type *t1, struct btf_type *t2)
+{
+	const struct btf_enum64 *m1, *m2;
+	__u16 vlen;
+	int i;
+
+	if (!btf_equal_common(t1, t2))
+		return false;
+
+	vlen = btf_vlen(t1);
+	m1 = btf_enum64(t1);
+	m2 = btf_enum64(t2);
+	for (i = 0; i < vlen; i++) {
+		if (m1->name_off != m2->name_off || m1->val_lo32 != m2->val_lo32 ||
+		    m1->val_hi32 != m2->val_hi32)
+			return false;
+		m1++;
+		m2++;
+	}
+	return true;
+}
+
 static inline bool btf_is_enum_fwd(struct btf_type *t)
 {
-	return btf_is_enum(t) && btf_vlen(t) == 0;
+	return btf_is_any_enum(t) && btf_vlen(t) == 0;
 }
 
 static bool btf_compat_enum(struct btf_type *t1, struct btf_type *t2)
@@ -3519,6 +3472,17 @@ static bool btf_compat_enum(struct btf_type *t1, struct btf_type *t2)
 	       t1->size == t2->size;
 }
 
+static bool btf_compat_enum64(struct btf_type *t1, struct btf_type *t2)
+{
+	if (!btf_is_enum_fwd(t1) && !btf_is_enum_fwd(t2))
+		return btf_equal_enum64(t1, t2);
+
+	/* ignore vlen when comparing */
+	return t1->name_off == t2->name_off &&
+	       (t1->info & ~0xffff) == (t2->info & ~0xffff) &&
+	       t1->size == t2->size;
+}
+
 /*
  * Calculate type signature hash of STRUCT/UNION, ignoring referenced type IDs,
  * as referenced type IDs equivalence is established separately during type
@@ -3731,6 +3695,7 @@ static int btf_dedup_prep(struct btf_dedup *d)
 			h = btf_hash_int_decl_tag(t);
 			break;
 		case BTF_KIND_ENUM:
+		case BTF_KIND_ENUM64:
 			h = btf_hash_enum(t);
 			break;
 		case BTF_KIND_STRUCT:
@@ -3820,6 +3785,27 @@ static int btf_dedup_prim_type(struct btf_dedup *d, __u32 type_id)
 		}
 		break;
 
+	case BTF_KIND_ENUM64:
+		h = btf_hash_enum(t);
+		for_each_dedup_cand(d, hash_entry, h) {
+			cand_id = (__u32)(long)hash_entry->value;
+			cand = btf_type_by_id(d->btf, cand_id);
+			if (btf_equal_enum64(t, cand)) {
+				new_id = cand_id;
+				break;
+			}
+			if (btf_compat_enum64(t, cand)) {
+				if (btf_is_enum_fwd(t)) {
+					/* resolve fwd to full enum */
+					new_id = cand_id;
+					break;
+				}
+				/* resolve canonical enum fwd to full enum */
+				d->map[cand_id] = type_id;
+			}
+		}
+		break;
+
 	case BTF_KIND_FWD:
 	case BTF_KIND_FLOAT:
 		h = btf_hash_common(t);
@@ -4115,6 +4101,9 @@ static int btf_dedup_is_equiv(struct btf_dedup *d, __u32 cand_id,
 	case BTF_KIND_ENUM:
 		return btf_compat_enum(cand_type, canon_type);
 
+	case BTF_KIND_ENUM64:
+		return btf_compat_enum64(cand_type, canon_type);
+
 	case BTF_KIND_FWD:
 	case BTF_KIND_FLOAT:
 		return btf_equal_common(cand_type, canon_type);
@@ -4717,6 +4706,7 @@ int btf_type_visit_type_ids(struct btf_type *t, type_id_visit_fn visit, void *ct
 	case BTF_KIND_INT:
 	case BTF_KIND_FLOAT:
 	case BTF_KIND_ENUM:
+	case BTF_KIND_ENUM64:
 		return 0;
 
 	case BTF_KIND_FWD:
@@ -4811,6 +4801,16 @@ int btf_type_visit_str_offs(struct btf_type *t, str_off_visit_fn visit, void *ct
 		}
 		break;
 	}
+	case BTF_KIND_ENUM64: {
+		struct btf_enum64 *m = btf_enum64(t);
+
+		for (i = 0, n = btf_vlen(t); i < n; i++, m++) {
+			err = visit(&m->name_off, ctx);
+			if (err)
+				return err;
+		}
+		break;
+	}
 	case BTF_KIND_FUNC_PROTO: {
 		struct btf_param *m = btf_params(t);
 

src/btf.h

@@ -120,20 +120,12 @@ LIBBPF_API struct btf *libbpf_find_kernel_btf(void);
 
 LIBBPF_API struct btf *btf__load_from_kernel_by_id(__u32 id);
 LIBBPF_API struct btf *btf__load_from_kernel_by_id_split(__u32 id, struct btf *base_btf);
-LIBBPF_DEPRECATED_SINCE(0, 6, "use btf__load_from_kernel_by_id instead")
-LIBBPF_API int btf__get_from_id(__u32 id, struct btf **btf);
 
-LIBBPF_DEPRECATED_SINCE(0, 6, "intended for internal libbpf use only")
-LIBBPF_API int btf__finalize_data(struct bpf_object *obj, struct btf *btf);
-LIBBPF_DEPRECATED_SINCE(0, 6, "use btf__load_into_kernel instead")
-LIBBPF_API int btf__load(struct btf *btf);
 LIBBPF_API int btf__load_into_kernel(struct btf *btf);
 LIBBPF_API __s32 btf__find_by_name(const struct btf *btf,
 				   const char *type_name);
 LIBBPF_API __s32 btf__find_by_name_kind(const struct btf *btf,
 					const char *type_name, __u32 kind);
-LIBBPF_DEPRECATED_SINCE(0, 7, "use btf__type_cnt() instead; note that btf__get_nr_types() == btf__type_cnt() - 1")
-LIBBPF_API __u32 btf__get_nr_types(const struct btf *btf);
 LIBBPF_API __u32 btf__type_cnt(const struct btf *btf);
 LIBBPF_API const struct btf *btf__base_btf(const struct btf *btf);
 LIBBPF_API const struct btf_type *btf__type_by_id(const struct btf *btf,
@@ -150,29 +142,10 @@ LIBBPF_API void btf__set_fd(struct btf *btf, int fd);
 LIBBPF_API const void *btf__raw_data(const struct btf *btf, __u32 *size);
 LIBBPF_API const char *btf__name_by_offset(const struct btf *btf, __u32 offset);
 LIBBPF_API const char *btf__str_by_offset(const struct btf *btf, __u32 offset);
-LIBBPF_DEPRECATED_SINCE(0, 7, "this API is not necessary when BTF-defined maps are used")
-LIBBPF_API int btf__get_map_kv_tids(const struct btf *btf, const char *map_name,
-				    __u32 expected_key_size,
-				    __u32 expected_value_size,
-				    __u32 *key_type_id, __u32 *value_type_id);
 
 LIBBPF_API struct btf_ext *btf_ext__new(const __u8 *data, __u32 size);
 LIBBPF_API void btf_ext__free(struct btf_ext *btf_ext);
 LIBBPF_API const void *btf_ext__raw_data(const struct btf_ext *btf_ext, __u32 *size);
-LIBBPF_API LIBBPF_DEPRECATED("btf_ext__reloc_func_info was never meant as a public API and has wrong assumptions embedded in it; it will be removed in the future libbpf versions")
-int btf_ext__reloc_func_info(const struct btf *btf,
-			     const struct btf_ext *btf_ext,
-			     const char *sec_name, __u32 insns_cnt,
-			     void **func_info, __u32 *cnt);
-LIBBPF_API LIBBPF_DEPRECATED("btf_ext__reloc_line_info was never meant as a public API and has wrong assumptions embedded in it; it will be removed in the future libbpf versions")
-int btf_ext__reloc_line_info(const struct btf *btf,
-			     const struct btf_ext *btf_ext,
-			     const char *sec_name, __u32 insns_cnt,
-			     void **line_info, __u32 *cnt);
-LIBBPF_API LIBBPF_DEPRECATED("btf_ext__reloc_func_info is deprecated; write custom func_info parsing to fetch rec_size")
-__u32 btf_ext__func_info_rec_size(const struct btf_ext *btf_ext);
-LIBBPF_API LIBBPF_DEPRECATED("btf_ext__reloc_line_info is deprecated; write custom line_info parsing to fetch rec_size")
-__u32 btf_ext__line_info_rec_size(const struct btf_ext *btf_ext);
 
 LIBBPF_API int btf__find_str(struct btf *btf, const char *s);
 LIBBPF_API int btf__add_str(struct btf *btf, const char *s);
@@ -215,6 +188,8 @@ LIBBPF_API int btf__add_field(struct btf *btf, const char *name, int field_type_
 /* enum construction APIs */
 LIBBPF_API int btf__add_enum(struct btf *btf, const char *name, __u32 bytes_sz);
 LIBBPF_API int btf__add_enum_value(struct btf *btf, const char *name, __s64 value);
+LIBBPF_API int btf__add_enum64(struct btf *btf, const char *name, __u32 bytes_sz, bool is_signed);
+LIBBPF_API int btf__add_enum64_value(struct btf *btf, const char *name, __u64 value);
 
 enum btf_fwd_kind {
 	BTF_FWD_STRUCT = 0,
@@ -257,22 +232,12 @@ struct btf_dedup_opts {
 
 LIBBPF_API int btf__dedup(struct btf *btf, const struct btf_dedup_opts *opts);
 
-LIBBPF_API int btf__dedup_v0_6_0(struct btf *btf, const struct btf_dedup_opts *opts);
-
-LIBBPF_DEPRECATED_SINCE(0, 7, "use btf__dedup() instead")
-LIBBPF_API int btf__dedup_deprecated(struct btf *btf, struct btf_ext *btf_ext, const void *opts);
-#define btf__dedup(...) ___libbpf_overload(___btf_dedup, __VA_ARGS__)
-#define ___btf_dedup3(btf, btf_ext, opts) btf__dedup_deprecated(btf, btf_ext, opts)
-#define ___btf_dedup2(btf, opts) btf__dedup(btf, opts)
-
 struct btf_dump;
 
 struct btf_dump_opts {
-	union {
-		size_t sz;
-		void *ctx; /* DEPRECATED: will be gone in v1.0 */
-	};
+	size_t sz;
 };
+#define btf_dump_opts__last_field sz
 
 typedef void (*btf_dump_printf_fn_t)(void *ctx, const char *fmt, va_list args);
 
@@ -281,51 +246,6 @@ LIBBPF_API struct btf_dump *btf_dump__new(const struct btf *btf,
 					  void *ctx,
 					  const struct btf_dump_opts *opts);
 
-LIBBPF_API struct btf_dump *btf_dump__new_v0_6_0(const struct btf *btf,
-						 btf_dump_printf_fn_t printf_fn,
-						 void *ctx,
-						 const struct btf_dump_opts *opts);
-
-LIBBPF_API struct btf_dump *btf_dump__new_deprecated(const struct btf *btf,
-						     const struct btf_ext *btf_ext,
-						     const struct btf_dump_opts *opts,
-						     btf_dump_printf_fn_t printf_fn);
-
-/* Choose either btf_dump__new() or btf_dump__new_deprecated() based on the
- * type of 4th argument. If it's btf_dump's print callback, use deprecated
- * API; otherwise, choose the new btf_dump__new(). ___libbpf_override()
- * doesn't work here because both variants have 4 input arguments.
- *
- * (void *) casts are necessary to avoid compilation warnings about type
- * mismatches, because even though __builtin_choose_expr() only ever evaluates
- * one side the other side still has to satisfy type constraints (this is
- * compiler implementation limitation which might be lifted eventually,
- * according to the documentation). So passing struct btf_ext in place of
- * btf_dump_printf_fn_t would be generating compilation warning.  Casting to
- * void * avoids this issue.
- *
- * Also, two type compatibility checks for a function and function pointer are
- * required because passing function reference into btf_dump__new() as
- * btf_dump__new(..., my_callback, ...) and as btf_dump__new(...,
- * &my_callback, ...) (not explicit ampersand in the latter case) actually
- * differs as far as __builtin_types_compatible_p() is concerned. Thus two
- * checks are combined to detect callback argument.
- *
- * The rest works just like in case of ___libbpf_override() usage with symbol
- * versioning.
- *
- * C++ compilers don't support __builtin_types_compatible_p(), so at least
- * don't screw up compilation for them and let C++ users pick btf_dump__new
- * vs btf_dump__new_deprecated explicitly.
- */
-#ifndef __cplusplus
-#define btf_dump__new(a1, a2, a3, a4) __builtin_choose_expr(				\
-	__builtin_types_compatible_p(typeof(a4), btf_dump_printf_fn_t) ||		\
-	__builtin_types_compatible_p(typeof(a4), void(void *, const char *, va_list)),	\
-	btf_dump__new_deprecated((void *)a1, (void *)a2, (void *)a3, (void *)a4),	\
-	btf_dump__new((void *)a1, (void *)a2, (void *)a3, (void *)a4))
-#endif
-
 LIBBPF_API void btf_dump__free(struct btf_dump *d);
 
 LIBBPF_API int btf_dump__dump_type(struct btf_dump *d, __u32 id);
@@ -393,9 +313,10 @@ btf_dump__dump_type_data(struct btf_dump *d, __u32 id,
 #ifndef BTF_KIND_FLOAT
 #define BTF_KIND_FLOAT		16	/* Floating point	*/
 #endif
-/* The kernel header switched to enums, so these two were never #defined */
+/* The kernel header switched to enums, so the following were never #defined */
 #define BTF_KIND_DECL_TAG	17	/* Decl Tag */
 #define BTF_KIND_TYPE_TAG	18	/* Type Tag */
+#define BTF_KIND_ENUM64		19	/* Enum for up-to 64bit values */
 
 static inline __u16 btf_kind(const struct btf_type *t)
 {
@@ -454,6 +375,11 @@ static inline bool btf_is_enum(const struct btf_type *t)
 	return btf_kind(t) == BTF_KIND_ENUM;
 }
 
+static inline bool btf_is_enum64(const struct btf_type *t)
+{
+	return btf_kind(t) == BTF_KIND_ENUM64;
+}
+
 static inline bool btf_is_fwd(const struct btf_type *t)
 {
 	return btf_kind(t) == BTF_KIND_FWD;
@@ -524,6 +450,18 @@ static inline bool btf_is_type_tag(const struct btf_type *t)
 	return btf_kind(t) == BTF_KIND_TYPE_TAG;
 }
 
+static inline bool btf_is_any_enum(const struct btf_type *t)
+{
+	return btf_is_enum(t) || btf_is_enum64(t);
+}
+
+static inline bool btf_kind_core_compat(const struct btf_type *t1,
+					const struct btf_type *t2)
+{
+	return btf_kind(t1) == btf_kind(t2) ||
+	       (btf_is_any_enum(t1) && btf_is_any_enum(t2));
+}
+
 static inline __u8 btf_int_encoding(const struct btf_type *t)
 {
 	return BTF_INT_ENCODING(*(__u32 *)(t + 1));
@@ -549,6 +487,16 @@ static inline struct btf_enum *btf_enum(const struct btf_type *t)
 	return (struct btf_enum *)(t + 1);
 }
 
+static inline struct btf_enum64 *btf_enum64(const struct btf_type *t)
+{
+	return (struct btf_enum64 *)(t + 1);
+}
+
+static inline __u64 btf_enum64_value(const struct btf_enum64 *e)
+{
+	return ((__u64)e->val_hi32 << 32) | e->val_lo32;
+}
+
 static inline struct btf_member *btf_members(const struct btf_type *t)
 {
 	return (struct btf_member *)(t + 1);

src/btf_dump.c

@@ -144,15 +144,17 @@ static void btf_dump_printf(const struct btf_dump *d, const char *fmt, ...)
 static int btf_dump_mark_referenced(struct btf_dump *d);
 static int btf_dump_resize(struct btf_dump *d);
 
-DEFAULT_VERSION(btf_dump__new_v0_6_0, btf_dump__new, LIBBPF_0.6.0)
-struct btf_dump *btf_dump__new_v0_6_0(const struct btf *btf,
-				      btf_dump_printf_fn_t printf_fn,
-				      void *ctx,
-				      const struct btf_dump_opts *opts)
+struct btf_dump *btf_dump__new(const struct btf *btf,
+			       btf_dump_printf_fn_t printf_fn,
+			       void *ctx,
+			       const struct btf_dump_opts *opts)
 {
 	struct btf_dump *d;
 	int err;
 
+	if (!OPTS_VALID(opts, btf_dump_opts))
+		return libbpf_err_ptr(-EINVAL);
+
 	if (!printf_fn)
 		return libbpf_err_ptr(-EINVAL);
 
@@ -188,17 +190,6 @@ err:
 	return libbpf_err_ptr(err);
 }
 
-COMPAT_VERSION(btf_dump__new_deprecated, btf_dump__new, LIBBPF_0.0.4)
-struct btf_dump *btf_dump__new_deprecated(const struct btf *btf,
-					  const struct btf_ext *btf_ext,
-					  const struct btf_dump_opts *opts,
-					  btf_dump_printf_fn_t printf_fn)
-{
-	if (!printf_fn)
-		return libbpf_err_ptr(-EINVAL);
-	return btf_dump__new_v0_6_0(btf, printf_fn, opts ? opts->ctx : NULL, opts);
-}
-
 static int btf_dump_resize(struct btf_dump *d)
 {
 	int err, last_id = btf__type_cnt(d->btf) - 1;
@@ -318,6 +309,7 @@ static int btf_dump_mark_referenced(struct btf_dump *d)
 		switch (btf_kind(t)) {
 		case BTF_KIND_INT:
 		case BTF_KIND_ENUM:
+		case BTF_KIND_ENUM64:
 		case BTF_KIND_FWD:
 		case BTF_KIND_FLOAT:
 			break;
@@ -538,6 +530,7 @@ static int btf_dump_order_type(struct btf_dump *d, __u32 id, bool through_ptr)
 		return 1;
 	}
 	case BTF_KIND_ENUM:
+	case BTF_KIND_ENUM64:
 	case BTF_KIND_FWD:
 		/*
 		 * non-anonymous or non-referenced enums are top-level
@@ -739,6 +732,7 @@ static void btf_dump_emit_type(struct btf_dump *d, __u32 id, __u32 cont_id)
 		tstate->emit_state = EMITTED;
 		break;
 	case BTF_KIND_ENUM:
+	case BTF_KIND_ENUM64:
 		if (top_level_def) {
 			btf_dump_emit_enum_def(d, id, t, 0);
 			btf_dump_printf(d, ";\n\n");
@@ -989,38 +983,81 @@ static void btf_dump_emit_enum_fwd(struct btf_dump *d, __u32 id,
 	btf_dump_printf(d, "enum %s", btf_dump_type_name(d, id));
 }
 
+static void btf_dump_emit_enum32_val(struct btf_dump *d,
+				     const struct btf_type *t,
+				     int lvl, __u16 vlen)
+{
+	const struct btf_enum *v = btf_enum(t);
+	bool is_signed = btf_kflag(t);
+	const char *fmt_str;
+	const char *name;
+	size_t dup_cnt;
+	int i;
+
+	for (i = 0; i < vlen; i++, v++) {
+		name = btf_name_of(d, v->name_off);
+		/* enumerators share namespace with typedef idents */
+		dup_cnt = btf_dump_name_dups(d, d->ident_names, name);
+		if (dup_cnt > 1) {
+			fmt_str = is_signed ? "\n%s%s___%zd = %d," : "\n%s%s___%zd = %u,";
+			btf_dump_printf(d, fmt_str, pfx(lvl + 1), name, dup_cnt, v->val);
+		} else {
+			fmt_str = is_signed ? "\n%s%s = %d," : "\n%s%s = %u,";
+			btf_dump_printf(d, fmt_str, pfx(lvl + 1), name, v->val);
+		}
+	}
+}
+
+static void btf_dump_emit_enum64_val(struct btf_dump *d,
+				     const struct btf_type *t,
+				     int lvl, __u16 vlen)
+{
+	const struct btf_enum64 *v = btf_enum64(t);
+	bool is_signed = btf_kflag(t);
+	const char *fmt_str;
+	const char *name;
+	size_t dup_cnt;
+	__u64 val;
+	int i;
+
+	for (i = 0; i < vlen; i++, v++) {
+		name = btf_name_of(d, v->name_off);
+		dup_cnt = btf_dump_name_dups(d, d->ident_names, name);
+		val = btf_enum64_value(v);
+		if (dup_cnt > 1) {
+			fmt_str = is_signed ? "\n%s%s___%zd = %lldLL,"
+					    : "\n%s%s___%zd = %lluULL,";
+			btf_dump_printf(d, fmt_str,
+					pfx(lvl + 1), name, dup_cnt,
+					(unsigned long long)val);
+		} else {
+			fmt_str = is_signed ? "\n%s%s = %lldLL,"
+					    : "\n%s%s = %lluULL,";
+			btf_dump_printf(d, fmt_str,
+					pfx(lvl + 1), name,
+					(unsigned long long)val);
+		}
+	}
+}
 static void btf_dump_emit_enum_def(struct btf_dump *d, __u32 id,
 				   const struct btf_type *t,
 				   int lvl)
 {
-	const struct btf_enum *v = btf_enum(t);
 	__u16 vlen = btf_vlen(t);
-	const char *name;
-	size_t dup_cnt;
-	int i;
 
 	btf_dump_printf(d, "enum%s%s",
 			t->name_off ? " " : "",
 			btf_dump_type_name(d, id));
 
-	if (vlen) {
-		btf_dump_printf(d, " {");
-		for (i = 0; i < vlen; i++, v++) {
-			name = btf_name_of(d, v->name_off);
-			/* enumerators share namespace with typedef idents */
-			dup_cnt = btf_dump_name_dups(d, d->ident_names, name);
-			if (dup_cnt > 1) {
-				btf_dump_printf(d, "\n%s%s___%zu = %u,",
-						pfx(lvl + 1), name, dup_cnt,
-						(__u32)v->val);
-			} else {
-				btf_dump_printf(d, "\n%s%s = %u,",
-						pfx(lvl + 1), name,
-						(__u32)v->val);
-			}
-		}
-		btf_dump_printf(d, "\n%s}", pfx(lvl));
-	}
+	if (!vlen)
+		return;
+
+	btf_dump_printf(d, " {");
+	if (btf_is_enum(t))
+		btf_dump_emit_enum32_val(d, t, lvl, vlen);
+	else
+		btf_dump_emit_enum64_val(d, t, lvl, vlen);
+	btf_dump_printf(d, "\n%s}", pfx(lvl));
 }
 
 static void btf_dump_emit_fwd_def(struct btf_dump *d, __u32 id,
@@ -1178,6 +1215,7 @@ skip_mod:
 			break;
 		case BTF_KIND_INT:
 		case BTF_KIND_ENUM:
+		case BTF_KIND_ENUM64:
 		case BTF_KIND_FWD:
 		case BTF_KIND_STRUCT:
 		case BTF_KIND_UNION:
@@ -1312,6 +1350,7 @@ static void btf_dump_emit_type_chain(struct btf_dump *d,
 				btf_dump_emit_struct_fwd(d, id, t);
 			break;
 		case BTF_KIND_ENUM:
+		case BTF_KIND_ENUM64:
 			btf_dump_emit_mods(d, decls);
 			/* inline anonymous enum */
 			if (t->name_off == 0 && !d->skip_anon_defs)
@@ -1988,7 +2027,8 @@ static int btf_dump_get_enum_value(struct btf_dump *d,
 				   __u32 id,
 				   __s64 *value)
 {
-	/* handle unaligned enum value */
+	bool is_signed = btf_kflag(t);
+
 	if (!ptr_is_aligned(d->btf, id, data)) {
 		__u64 val;
 		int err;
@@ -2005,13 +2045,13 @@ static int btf_dump_get_enum_value(struct btf_dump *d,
 		*value = *(__s64 *)data;
 		return 0;
 	case 4:
-		*value = *(__s32 *)data;
+		*value = is_signed ? *(__s32 *)data : *(__u32 *)data;
 		return 0;
 	case 2:
-		*value = *(__s16 *)data;
+		*value = is_signed ? *(__s16 *)data : *(__u16 *)data;
 		return 0;
 	case 1:
-		*value = *(__s8 *)data;
+		*value = is_signed ? *(__s8 *)data : *(__u8 *)data;
 		return 0;
 	default:
 		pr_warn("unexpected size %d for enum, id:[%u]\n", t->size, id);
@@ -2024,7 +2064,7 @@ static int btf_dump_enum_data(struct btf_dump *d,
 			      __u32 id,
 			      const void *data)
 {
-	const struct btf_enum *e;
+	bool is_signed;
 	__s64 value;
 	int i, err;
 
@@ -2032,14 +2072,31 @@ static int btf_dump_enum_data(struct btf_dump *d,
 	if (err)
 		return err;
 
-	for (i = 0, e = btf_enum(t); i < btf_vlen(t); i++, e++) {
-		if (value != e->val)
-			continue;
-		btf_dump_type_values(d, "%s", btf_name_of(d, e->name_off));
-		return 0;
-	}
+	is_signed = btf_kflag(t);
+	if (btf_is_enum(t)) {
+		const struct btf_enum *e;
 
-	btf_dump_type_values(d, "%d", value);
+		for (i = 0, e = btf_enum(t); i < btf_vlen(t); i++, e++) {
+			if (value != e->val)
+				continue;
+			btf_dump_type_values(d, "%s", btf_name_of(d, e->name_off));
+			return 0;
+		}
+
+		btf_dump_type_values(d, is_signed ? "%d" : "%u", value);
+	} else {
+		const struct btf_enum64 *e;
+
+		for (i = 0, e = btf_enum64(t); i < btf_vlen(t); i++, e++) {
+			if (value != btf_enum64_value(e))
+				continue;
+			btf_dump_type_values(d, "%s", btf_name_of(d, e->name_off));
+			return 0;
+		}
+
+		btf_dump_type_values(d, is_signed ? "%lldLL" : "%lluULL",
+				     (unsigned long long)value);
+	}
 	return 0;
 }
 
@@ -2099,6 +2156,7 @@ static int btf_dump_type_data_check_overflow(struct btf_dump *d,
 	case BTF_KIND_FLOAT:
 	case BTF_KIND_PTR:
 	case BTF_KIND_ENUM:
+	case BTF_KIND_ENUM64:
 		if (data + bits_offset / 8 + size > d->typed_dump->data_end)
 			return -E2BIG;
 		break;
@@ -2203,6 +2261,7 @@ static int btf_dump_type_data_check_zero(struct btf_dump *d,
 		return -ENODATA;
 	}
 	case BTF_KIND_ENUM:
+	case BTF_KIND_ENUM64:
 		err = btf_dump_get_enum_value(d, t, data, id, &value);
 		if (err)
 			return err;
@@ -2275,6 +2334,7 @@ static int btf_dump_dump_type_data(struct btf_dump *d,
 		err = btf_dump_struct_data(d, t, id, data);
 		break;
 	case BTF_KIND_ENUM:
+	case BTF_KIND_ENUM64:
 		/* handle bitfield and int enum values */
 		if (bit_sz) {
 			__u64 print_num;

src/libbpf.h

@@ -51,6 +51,42 @@ enum libbpf_errno {
 
 LIBBPF_API int libbpf_strerror(int err, char *buf, size_t size);
 
+/**
+ * @brief **libbpf_bpf_attach_type_str()** converts the provided attach type
+ * value into a textual representation.
+ * @param t The attach type.
+ * @return Pointer to a static string identifying the attach type. NULL is
+ * returned for unknown **bpf_attach_type** values.
+ */
+LIBBPF_API const char *libbpf_bpf_attach_type_str(enum bpf_attach_type t);
+
+/**
+ * @brief **libbpf_bpf_link_type_str()** converts the provided link type value
+ * into a textual representation.
+ * @param t The link type.
+ * @return Pointer to a static string identifying the link type. NULL is
+ * returned for unknown **bpf_link_type** values.
+ */
+LIBBPF_API const char *libbpf_bpf_link_type_str(enum bpf_link_type t);
+
+/**
+ * @brief **libbpf_bpf_map_type_str()** converts the provided map type value
+ * into a textual representation.
+ * @param t The map type.
+ * @return Pointer to a static string identifying the map type. NULL is
+ * returned for unknown **bpf_map_type** values.
+ */
+LIBBPF_API const char *libbpf_bpf_map_type_str(enum bpf_map_type t);
+
+/**
+ * @brief **libbpf_bpf_prog_type_str()** converts the provided program type
+ * value into a textual representation.
+ * @param t The program type.
+ * @return Pointer to a static string identifying the program type. NULL is
+ * returned for unknown **bpf_prog_type** values.
+ */
+LIBBPF_API const char *libbpf_bpf_prog_type_str(enum bpf_prog_type t);
+
 enum libbpf_print_level {
         LIBBPF_WARN,
         LIBBPF_INFO,
@@ -65,13 +101,8 @@ LIBBPF_API libbpf_print_fn_t libbpf_set_print(libbpf_print_fn_t fn);
 /* Hide internal to user */
 struct bpf_object;
 
-struct bpf_object_open_attr {
-	const char *file;
-	enum bpf_prog_type prog_type;
-};
-
 struct bpf_object_open_opts {
-	/* size of this struct, for forward/backward compatiblity */
+	/* size of this struct, for forward/backward compatibility */
 	size_t sz;
 	/* object name override, if provided:
 	 * - for object open from file, this will override setting object
@@ -82,21 +113,12 @@ struct bpf_object_open_opts {
 	const char *object_name;
 	/* parse map definitions non-strictly, allowing extra attributes/data */
 	bool relaxed_maps;
-	/* DEPRECATED: handle CO-RE relocations non-strictly, allowing failures.
-	 * Value is ignored. Relocations always are processed non-strictly.
-	 * Non-relocatable instructions are replaced with invalid ones to
-	 * prevent accidental errors.
-	 * */
-	LIBBPF_DEPRECATED_SINCE(0, 6, "field has no effect")
-	bool relaxed_core_relocs;
 	/* maps that set the 'pinning' attribute in their definition will have
 	 * their pin_path attribute set to a file in this directory, and be
 	 * auto-pinned to that path on load; defaults to "/sys/fs/bpf".
 	 */
 	const char *pin_root_path;
-
-	LIBBPF_DEPRECATED_SINCE(0, 7, "use bpf_program__set_attach_target() on each individual bpf_program")
-	__u32 attach_prog_fd;
+	long :0;
 	/* Additional kernel config content that augments and overrides
 	 * system Kconfig for CONFIG_xxx externs.
 	 */
@@ -179,20 +201,10 @@ LIBBPF_API struct bpf_object *
 bpf_object__open_mem(const void *obj_buf, size_t obj_buf_sz,
 		     const struct bpf_object_open_opts *opts);
 
-/* deprecated bpf_object__open variants */
-LIBBPF_DEPRECATED_SINCE(0, 8, "use bpf_object__open_mem() instead")
-LIBBPF_API struct bpf_object *
-bpf_object__open_buffer(const void *obj_buf, size_t obj_buf_sz,
-			const char *name);
-LIBBPF_DEPRECATED_SINCE(0, 7, "use bpf_object__open_file() instead")
-LIBBPF_API struct bpf_object *
-bpf_object__open_xattr(struct bpf_object_open_attr *attr);
+/* Load/unload object into/from kernel */
+LIBBPF_API int bpf_object__load(struct bpf_object *obj);
 
-enum libbpf_pin_type {
-	LIBBPF_PIN_NONE,
-	/* PIN_BY_NAME: pin maps by name (in /sys/fs/bpf by default) */
-	LIBBPF_PIN_BY_NAME,
-};
+LIBBPF_API void bpf_object__close(struct bpf_object *object);
 
 /* pin_maps and unpin_maps can both be called with a NULL path, in which case
  * they will use the pin_path attribute of each map (and ignore all maps that
@@ -206,20 +218,6 @@ LIBBPF_API int bpf_object__pin_programs(struct bpf_object *obj,
 LIBBPF_API int bpf_object__unpin_programs(struct bpf_object *obj,
 					  const char *path);
 LIBBPF_API int bpf_object__pin(struct bpf_object *object, const char *path);
-LIBBPF_API void bpf_object__close(struct bpf_object *object);
-
-struct bpf_object_load_attr {
-	struct bpf_object *obj;
-	int log_level;
-	const char *target_btf_path;
-};
-
-/* Load/unload object into/from kernel */
-LIBBPF_API int bpf_object__load(struct bpf_object *obj);
-LIBBPF_DEPRECATED_SINCE(0, 8, "use bpf_object__load() instead")
-LIBBPF_API int bpf_object__load_xattr(struct bpf_object_load_attr *attr);
-LIBBPF_DEPRECATED_SINCE(0, 6, "bpf_object__unload() is deprecated, use bpf_object__close() instead")
-LIBBPF_API int bpf_object__unload(struct bpf_object *obj);
 
 LIBBPF_API const char *bpf_object__name(const struct bpf_object *obj);
 LIBBPF_API unsigned int bpf_object__kversion(const struct bpf_object *obj);
@@ -229,29 +227,10 @@ struct btf;
 LIBBPF_API struct btf *bpf_object__btf(const struct bpf_object *obj);
 LIBBPF_API int bpf_object__btf_fd(const struct bpf_object *obj);
 
-LIBBPF_DEPRECATED_SINCE(0, 7, "use bpf_object__find_program_by_name() instead")
-LIBBPF_API struct bpf_program *
-bpf_object__find_program_by_title(const struct bpf_object *obj,
-				  const char *title);
 LIBBPF_API struct bpf_program *
 bpf_object__find_program_by_name(const struct bpf_object *obj,
 				 const char *name);
 
-LIBBPF_API LIBBPF_DEPRECATED_SINCE(0, 7, "track bpf_objects in application code instead")
-struct bpf_object *bpf_object__next(struct bpf_object *prev);
-#define bpf_object__for_each_safe(pos, tmp)			\
-	for ((pos) = bpf_object__next(NULL),		\
-		(tmp) = bpf_object__next(pos);		\
-	     (pos) != NULL;				\
-	     (pos) = (tmp), (tmp) = bpf_object__next(tmp))
-
-typedef void (*bpf_object_clear_priv_t)(struct bpf_object *, void *);
-LIBBPF_DEPRECATED_SINCE(0, 7, "storage via set_priv/priv is deprecated")
-LIBBPF_API int bpf_object__set_priv(struct bpf_object *obj, void *priv,
-				    bpf_object_clear_priv_t clear_priv);
-LIBBPF_DEPRECATED_SINCE(0, 7, "storage via set_priv/priv is deprecated")
-LIBBPF_API void *bpf_object__priv(const struct bpf_object *prog);
-
 LIBBPF_API int
 libbpf_prog_type_by_name(const char *name, enum bpf_prog_type *prog_type,
 			 enum bpf_attach_type *expected_attach_type);
@@ -262,9 +241,7 @@ LIBBPF_API int libbpf_find_vmlinux_btf_id(const char *name,
 
 /* Accessors of bpf_program */
 struct bpf_program;
-LIBBPF_API LIBBPF_DEPRECATED_SINCE(0, 7, "use bpf_object__next_program() instead")
-struct bpf_program *bpf_program__next(struct bpf_program *prog,
-				      const struct bpf_object *obj);
+
 LIBBPF_API struct bpf_program *
 bpf_object__next_program(const struct bpf_object *obj, struct bpf_program *prog);
 
@@ -273,33 +250,17 @@ bpf_object__next_program(const struct bpf_object *obj, struct bpf_program *prog)
 	     (pos) != NULL;					\
 	     (pos) = bpf_object__next_program((obj), (pos)))
 
-LIBBPF_API LIBBPF_DEPRECATED_SINCE(0, 7, "use bpf_object__prev_program() instead")
-struct bpf_program *bpf_program__prev(struct bpf_program *prog,
-				      const struct bpf_object *obj);
 LIBBPF_API struct bpf_program *
 bpf_object__prev_program(const struct bpf_object *obj, struct bpf_program *prog);
 
-typedef void (*bpf_program_clear_priv_t)(struct bpf_program *, void *);
-
-LIBBPF_DEPRECATED_SINCE(0, 7, "storage via set_priv/priv is deprecated")
-LIBBPF_API int bpf_program__set_priv(struct bpf_program *prog, void *priv,
-				     bpf_program_clear_priv_t clear_priv);
-LIBBPF_DEPRECATED_SINCE(0, 7, "storage via set_priv/priv is deprecated")
-LIBBPF_API void *bpf_program__priv(const struct bpf_program *prog);
 LIBBPF_API void bpf_program__set_ifindex(struct bpf_program *prog,
 					 __u32 ifindex);
 
 LIBBPF_API const char *bpf_program__name(const struct bpf_program *prog);
 LIBBPF_API const char *bpf_program__section_name(const struct bpf_program *prog);
-LIBBPF_API LIBBPF_DEPRECATED("BPF program title is confusing term; please use bpf_program__section_name() instead")
-const char *bpf_program__title(const struct bpf_program *prog, bool needs_copy);
 LIBBPF_API bool bpf_program__autoload(const struct bpf_program *prog);
 LIBBPF_API int bpf_program__set_autoload(struct bpf_program *prog, bool autoload);
 
-/* returns program size in bytes */
-LIBBPF_DEPRECATED_SINCE(0, 7, "use bpf_program__insn_cnt() instead")
-LIBBPF_API size_t bpf_program__size(const struct bpf_program *prog);
-
 struct bpf_insn;
 
 /**
@@ -352,17 +313,7 @@ LIBBPF_API int bpf_program__set_insns(struct bpf_program *prog,
  */
 LIBBPF_API size_t bpf_program__insn_cnt(const struct bpf_program *prog);
 
-LIBBPF_DEPRECATED_SINCE(0, 6, "use bpf_object__load() instead")
-LIBBPF_API int bpf_program__load(struct bpf_program *prog, const char *license, __u32 kern_version);
 LIBBPF_API int bpf_program__fd(const struct bpf_program *prog);
-LIBBPF_DEPRECATED_SINCE(0, 7, "multi-instance bpf_program support is deprecated")
-LIBBPF_API int bpf_program__pin_instance(struct bpf_program *prog,
-					 const char *path,
-					 int instance);
-LIBBPF_DEPRECATED_SINCE(0, 7, "multi-instance bpf_program support is deprecated")
-LIBBPF_API int bpf_program__unpin_instance(struct bpf_program *prog,
-					   const char *path,
-					   int instance);
 
 /**
  * @brief **bpf_program__pin()** pins the BPF program to a file
@@ -662,99 +613,6 @@ LIBBPF_API struct bpf_link *
 bpf_program__attach_iter(const struct bpf_program *prog,
 			 const struct bpf_iter_attach_opts *opts);
 
-/*
- * Libbpf allows callers to adjust BPF programs before being loaded
- * into kernel. One program in an object file can be transformed into
- * multiple variants to be attached to different hooks.
- *
- * bpf_program_prep_t, bpf_program__set_prep and bpf_program__nth_fd
- * form an API for this purpose.
- *
- * - bpf_program_prep_t:
- *   Defines a 'preprocessor', which is a caller defined function
- *   passed to libbpf through bpf_program__set_prep(), and will be
- *   called before program is loaded. The processor should adjust
- *   the program one time for each instance according to the instance id
- *   passed to it.
- *
- * - bpf_program__set_prep:
- *   Attaches a preprocessor to a BPF program. The number of instances
- *   that should be created is also passed through this function.
- *
- * - bpf_program__nth_fd:
- *   After the program is loaded, get resulting FD of a given instance
- *   of the BPF program.
- *
- * If bpf_program__set_prep() is not used, the program would be loaded
- * without adjustment during bpf_object__load(). The program has only
- * one instance. In this case bpf_program__fd(prog) is equal to
- * bpf_program__nth_fd(prog, 0).
- */
-struct bpf_prog_prep_result {
-	/*
-	 * If not NULL, load new instruction array.
-	 * If set to NULL, don't load this instance.
-	 */
-	struct bpf_insn *new_insn_ptr;
-	int new_insn_cnt;
-
-	/* If not NULL, result FD is written to it. */
-	int *pfd;
-};
-
-/*
- * Parameters of bpf_program_prep_t:
- *  - prog:	The bpf_program being loaded.
- *  - n:	Index of instance being generated.
- *  - insns:	BPF instructions array.
- *  - insns_cnt:Number of instructions in insns.
- *  - res:	Output parameter, result of transformation.
- *
- * Return value:
- *  - Zero:	pre-processing success.
- *  - Non-zero:	pre-processing error, stop loading.
- */
-typedef int (*bpf_program_prep_t)(struct bpf_program *prog, int n,
-				  struct bpf_insn *insns, int insns_cnt,
-				  struct bpf_prog_prep_result *res);
-
-LIBBPF_DEPRECATED_SINCE(0, 7, "use bpf_program__insns() for getting bpf_program instructions")
-LIBBPF_API int bpf_program__set_prep(struct bpf_program *prog, int nr_instance,
-				     bpf_program_prep_t prep);
-
-LIBBPF_DEPRECATED_SINCE(0, 7, "multi-instance bpf_program support is deprecated")
-LIBBPF_API int bpf_program__nth_fd(const struct bpf_program *prog, int n);
-
-/*
- * Adjust type of BPF program. Default is kprobe.
- */
-LIBBPF_DEPRECATED_SINCE(0, 8, "use bpf_program__set_type() instead")
-LIBBPF_API int bpf_program__set_socket_filter(struct bpf_program *prog);
-LIBBPF_DEPRECATED_SINCE(0, 8, "use bpf_program__set_type() instead")
-LIBBPF_API int bpf_program__set_tracepoint(struct bpf_program *prog);
-LIBBPF_DEPRECATED_SINCE(0, 8, "use bpf_program__set_type() instead")
-LIBBPF_API int bpf_program__set_raw_tracepoint(struct bpf_program *prog);
-LIBBPF_DEPRECATED_SINCE(0, 8, "use bpf_program__set_type() instead")
-LIBBPF_API int bpf_program__set_kprobe(struct bpf_program *prog);
-LIBBPF_DEPRECATED_SINCE(0, 8, "use bpf_program__set_type() instead")
-LIBBPF_API int bpf_program__set_lsm(struct bpf_program *prog);
-LIBBPF_DEPRECATED_SINCE(0, 8, "use bpf_program__set_type() instead")
-LIBBPF_API int bpf_program__set_sched_cls(struct bpf_program *prog);
-LIBBPF_DEPRECATED_SINCE(0, 8, "use bpf_program__set_type() instead")
-LIBBPF_API int bpf_program__set_sched_act(struct bpf_program *prog);
-LIBBPF_DEPRECATED_SINCE(0, 8, "use bpf_program__set_type() instead")
-LIBBPF_API int bpf_program__set_xdp(struct bpf_program *prog);
-LIBBPF_DEPRECATED_SINCE(0, 8, "use bpf_program__set_type() instead")
-LIBBPF_API int bpf_program__set_perf_event(struct bpf_program *prog);
-LIBBPF_DEPRECATED_SINCE(0, 8, "use bpf_program__set_type() instead")
-LIBBPF_API int bpf_program__set_tracing(struct bpf_program *prog);
-LIBBPF_DEPRECATED_SINCE(0, 8, "use bpf_program__set_type() instead")
-LIBBPF_API int bpf_program__set_struct_ops(struct bpf_program *prog);
-LIBBPF_DEPRECATED_SINCE(0, 8, "use bpf_program__set_type() instead")
-LIBBPF_API int bpf_program__set_extension(struct bpf_program *prog);
-LIBBPF_DEPRECATED_SINCE(0, 8, "use bpf_program__set_type() instead")
-LIBBPF_API int bpf_program__set_sk_lookup(struct bpf_program *prog);
-
 LIBBPF_API enum bpf_prog_type bpf_program__type(const struct bpf_program *prog);
 
 /**
@@ -817,47 +675,6 @@ LIBBPF_API int
 bpf_program__set_attach_target(struct bpf_program *prog, int attach_prog_fd,
 			       const char *attach_func_name);
 
-LIBBPF_DEPRECATED_SINCE(0, 8, "use bpf_program__type() instead")
-LIBBPF_API bool bpf_program__is_socket_filter(const struct bpf_program *prog);
-LIBBPF_DEPRECATED_SINCE(0, 8, "use bpf_program__type() instead")
-LIBBPF_API bool bpf_program__is_tracepoint(const struct bpf_program *prog);
-LIBBPF_DEPRECATED_SINCE(0, 8, "use bpf_program__type() instead")
-LIBBPF_API bool bpf_program__is_raw_tracepoint(const struct bpf_program *prog);
-LIBBPF_DEPRECATED_SINCE(0, 8, "use bpf_program__type() instead")
-LIBBPF_API bool bpf_program__is_kprobe(const struct bpf_program *prog);
-LIBBPF_DEPRECATED_SINCE(0, 8, "use bpf_program__type() instead")
-LIBBPF_API bool bpf_program__is_lsm(const struct bpf_program *prog);
-LIBBPF_DEPRECATED_SINCE(0, 8, "use bpf_program__type() instead")
-LIBBPF_API bool bpf_program__is_sched_cls(const struct bpf_program *prog);
-LIBBPF_DEPRECATED_SINCE(0, 8, "use bpf_program__type() instead")
-LIBBPF_API bool bpf_program__is_sched_act(const struct bpf_program *prog);
-LIBBPF_DEPRECATED_SINCE(0, 8, "use bpf_program__type() instead")
-LIBBPF_API bool bpf_program__is_xdp(const struct bpf_program *prog);
-LIBBPF_DEPRECATED_SINCE(0, 8, "use bpf_program__type() instead")
-LIBBPF_API bool bpf_program__is_perf_event(const struct bpf_program *prog);
-LIBBPF_DEPRECATED_SINCE(0, 8, "use bpf_program__type() instead")
-LIBBPF_API bool bpf_program__is_tracing(const struct bpf_program *prog);
-LIBBPF_DEPRECATED_SINCE(0, 8, "use bpf_program__type() instead")
-LIBBPF_API bool bpf_program__is_struct_ops(const struct bpf_program *prog);
-LIBBPF_DEPRECATED_SINCE(0, 8, "use bpf_program__type() instead")
-LIBBPF_API bool bpf_program__is_extension(const struct bpf_program *prog);
-LIBBPF_DEPRECATED_SINCE(0, 8, "use bpf_program__type() instead")
-LIBBPF_API bool bpf_program__is_sk_lookup(const struct bpf_program *prog);
-
-/*
- * No need for __attribute__((packed)), all members of 'bpf_map_def'
- * are all aligned.  In addition, using __attribute__((packed))
- * would trigger a -Wpacked warning message, and lead to an error
- * if -Werror is set.
- */
-struct bpf_map_def {
-	unsigned int type;
-	unsigned int key_size;
-	unsigned int value_size;
-	unsigned int max_entries;
-	unsigned int map_flags;
-};
-
 /**
  * @brief **bpf_object__find_map_by_name()** returns BPF map of
  * the given name, if it exists within the passed BPF object
@@ -872,16 +689,6 @@ bpf_object__find_map_by_name(const struct bpf_object *obj, const char *name);
 LIBBPF_API int
 bpf_object__find_map_fd_by_name(const struct bpf_object *obj, const char *name);
 
-/*
- * Get bpf_map through the offset of corresponding struct bpf_map_def
- * in the BPF object file.
- */
-LIBBPF_API LIBBPF_DEPRECATED_SINCE(0, 8, "use bpf_object__find_map_by_name() instead")
-struct bpf_map *
-bpf_object__find_map_by_offset(struct bpf_object *obj, size_t offset);
-
-LIBBPF_API LIBBPF_DEPRECATED_SINCE(0, 7, "use bpf_object__next_map() instead")
-struct bpf_map *bpf_map__next(const struct bpf_map *map, const struct bpf_object *obj);
 LIBBPF_API struct bpf_map *
 bpf_object__next_map(const struct bpf_object *obj, const struct bpf_map *map);
 
@@ -891,8 +698,6 @@ bpf_object__next_map(const struct bpf_object *obj, const struct bpf_map *map);
 	     (pos) = bpf_object__next_map((obj), (pos)))
 #define bpf_map__for_each bpf_object__for_each_map
 
-LIBBPF_API LIBBPF_DEPRECATED_SINCE(0, 7, "use bpf_object__prev_map() instead")
-struct bpf_map *bpf_map__prev(const struct bpf_map *map, const struct bpf_object *obj);
 LIBBPF_API struct bpf_map *
 bpf_object__prev_map(const struct bpf_object *obj, const struct bpf_map *map);
 
@@ -926,9 +731,6 @@ LIBBPF_API bool bpf_map__autocreate(const struct bpf_map *map);
  */
 LIBBPF_API int bpf_map__fd(const struct bpf_map *map);
 LIBBPF_API int bpf_map__reuse_fd(struct bpf_map *map, int fd);
-/* get map definition */
-LIBBPF_API LIBBPF_DEPRECATED_SINCE(0, 8, "use appropriate getters or setters instead")
-const struct bpf_map_def *bpf_map__def(const struct bpf_map *map);
 /* get map name */
 LIBBPF_API const char *bpf_map__name(const struct bpf_map *map);
 /* get/set map type */
@@ -937,8 +739,6 @@ LIBBPF_API int bpf_map__set_type(struct bpf_map *map, enum bpf_map_type type);
 /* get/set map size (max_entries) */
 LIBBPF_API __u32 bpf_map__max_entries(const struct bpf_map *map);
 LIBBPF_API int bpf_map__set_max_entries(struct bpf_map *map, __u32 max_entries);
-LIBBPF_DEPRECATED_SINCE(0, 8, "use bpf_map__set_max_entries() instead")
-LIBBPF_API int bpf_map__resize(struct bpf_map *map, __u32 max_entries);
 /* get/set map flags */
 LIBBPF_API __u32 bpf_map__map_flags(const struct bpf_map *map);
 LIBBPF_API int bpf_map__set_map_flags(struct bpf_map *map, __u32 flags);
@@ -961,17 +761,9 @@ LIBBPF_API int bpf_map__set_ifindex(struct bpf_map *map, __u32 ifindex);
 LIBBPF_API __u64 bpf_map__map_extra(const struct bpf_map *map);
 LIBBPF_API int bpf_map__set_map_extra(struct bpf_map *map, __u64 map_extra);
 
-typedef void (*bpf_map_clear_priv_t)(struct bpf_map *, void *);
-LIBBPF_DEPRECATED_SINCE(0, 7, "storage via set_priv/priv is deprecated")
-LIBBPF_API int bpf_map__set_priv(struct bpf_map *map, void *priv,
-				 bpf_map_clear_priv_t clear_priv);
-LIBBPF_DEPRECATED_SINCE(0, 7, "storage via set_priv/priv is deprecated")
-LIBBPF_API void *bpf_map__priv(const struct bpf_map *map);
 LIBBPF_API int bpf_map__set_initial_value(struct bpf_map *map,
 					  const void *data, size_t size);
 LIBBPF_API const void *bpf_map__initial_value(struct bpf_map *map, size_t *psize);
-LIBBPF_DEPRECATED_SINCE(0, 8, "use bpf_map__type() instead")
-LIBBPF_API bool bpf_map__is_offload_neutral(const struct bpf_map *map);
 
 /**
  * @brief **bpf_map__is_internal()** tells the caller whether or not the
@@ -1094,65 +886,6 @@ LIBBPF_API int bpf_map__lookup_and_delete_elem(const struct bpf_map *map,
 LIBBPF_API int bpf_map__get_next_key(const struct bpf_map *map,
 				     const void *cur_key, void *next_key, size_t key_sz);
 
-/**
- * @brief **libbpf_get_error()** extracts the error code from the passed
- * pointer
- * @param ptr pointer returned from libbpf API function
- * @return error code; or 0 if no error occured
- *
- * Many libbpf API functions which return pointers have logic to encode error
- * codes as pointers, and do not return NULL. Meaning **libbpf_get_error()**
- * should be used on the return value from these functions immediately after
- * calling the API function, with no intervening calls that could clobber the
- * `errno` variable. Consult the individual functions documentation to verify
- * if this logic applies should be used.
- *
- * For these API functions, if `libbpf_set_strict_mode(LIBBPF_STRICT_CLEAN_PTRS)`
- * is enabled, NULL is returned on error instead.
- *
- * If ptr is NULL, then errno should be already set by the failing
- * API, because libbpf never returns NULL on success and it now always
- * sets errno on error.
- *
- * Example usage:
- *
- *   struct perf_buffer *pb;
- *
- *   pb = perf_buffer__new(bpf_map__fd(obj->maps.events), PERF_BUFFER_PAGES, &opts);
- *   err = libbpf_get_error(pb);
- *   if (err) {
- *	  pb = NULL;
- *	  fprintf(stderr, "failed to open perf buffer: %d\n", err);
- *	  goto cleanup;
- *   }
- */
-LIBBPF_API long libbpf_get_error(const void *ptr);
-
-struct bpf_prog_load_attr {
-	const char *file;
-	enum bpf_prog_type prog_type;
-	enum bpf_attach_type expected_attach_type;
-	int ifindex;
-	int log_level;
-	int prog_flags;
-};
-
-LIBBPF_DEPRECATED_SINCE(0, 8, "use bpf_object__open() and bpf_object__load() instead")
-LIBBPF_API int bpf_prog_load_xattr(const struct bpf_prog_load_attr *attr,
-				   struct bpf_object **pobj, int *prog_fd);
-LIBBPF_DEPRECATED_SINCE(0, 7, "use bpf_object__open() and bpf_object__load() instead")
-LIBBPF_API int bpf_prog_load_deprecated(const char *file, enum bpf_prog_type type,
-					struct bpf_object **pobj, int *prog_fd);
-
-/* XDP related API */
-struct xdp_link_info {
-	__u32 prog_id;
-	__u32 drv_prog_id;
-	__u32 hw_prog_id;
-	__u32 skb_prog_id;
-	__u8 attach_mode;
-};
-
 struct bpf_xdp_set_link_opts {
 	size_t sz;
 	int old_fd;
@@ -1160,17 +893,6 @@ struct bpf_xdp_set_link_opts {
 };
 #define bpf_xdp_set_link_opts__last_field old_fd
 
-LIBBPF_DEPRECATED_SINCE(0, 8, "use bpf_xdp_attach() instead")
-LIBBPF_API int bpf_set_link_xdp_fd(int ifindex, int fd, __u32 flags);
-LIBBPF_DEPRECATED_SINCE(0, 8, "use bpf_xdp_attach() instead")
-LIBBPF_API int bpf_set_link_xdp_fd_opts(int ifindex, int fd, __u32 flags,
-					const struct bpf_xdp_set_link_opts *opts);
-LIBBPF_DEPRECATED_SINCE(0, 8, "use bpf_xdp_query_id() instead")
-LIBBPF_API int bpf_get_link_xdp_id(int ifindex, __u32 *prog_id, __u32 flags);
-LIBBPF_DEPRECATED_SINCE(0, 8, "use bpf_xdp_query() instead")
-LIBBPF_API int bpf_get_link_xdp_info(int ifindex, struct xdp_link_info *info,
-				     size_t info_size, __u32 flags);
-
 struct bpf_xdp_attach_opts {
 	size_t sz;
 	int old_prog_fd;
@@ -1269,17 +991,7 @@ typedef void (*perf_buffer_lost_fn)(void *ctx, int cpu, __u64 cnt);
 
 /* common use perf buffer options */
 struct perf_buffer_opts {
-	union {
-		size_t sz;
-		struct { /* DEPRECATED: will be removed in v1.0 */
-			/* if specified, sample_cb is called for each sample */
-			perf_buffer_sample_fn sample_cb;
-			/* if specified, lost_cb is called for each batch of lost samples */
-			perf_buffer_lost_fn lost_cb;
-			/* ctx is provided to sample_cb and lost_cb */
-			void *ctx;
-		};
-	};
+	size_t sz;
 };
 #define perf_buffer_opts__last_field sz
 
@@ -1300,21 +1012,6 @@ perf_buffer__new(int map_fd, size_t page_cnt,
 		 perf_buffer_sample_fn sample_cb, perf_buffer_lost_fn lost_cb, void *ctx,
 		 const struct perf_buffer_opts *opts);
 
-LIBBPF_API struct perf_buffer *
-perf_buffer__new_v0_6_0(int map_fd, size_t page_cnt,
-			perf_buffer_sample_fn sample_cb, perf_buffer_lost_fn lost_cb, void *ctx,
-			const struct perf_buffer_opts *opts);
-
-LIBBPF_API LIBBPF_DEPRECATED_SINCE(0, 7, "use new variant of perf_buffer__new() instead")
-struct perf_buffer *perf_buffer__new_deprecated(int map_fd, size_t page_cnt,
-						const struct perf_buffer_opts *opts);
-
-#define perf_buffer__new(...) ___libbpf_overload(___perf_buffer_new, __VA_ARGS__)
-#define ___perf_buffer_new6(map_fd, page_cnt, sample_cb, lost_cb, ctx, opts) \
-	perf_buffer__new(map_fd, page_cnt, sample_cb, lost_cb, ctx, opts)
-#define ___perf_buffer_new3(map_fd, page_cnt, opts) \
-	perf_buffer__new_deprecated(map_fd, page_cnt, opts)
-
 enum bpf_perf_event_ret {
 	LIBBPF_PERF_EVENT_DONE	= 0,
 	LIBBPF_PERF_EVENT_ERROR	= -1,
@@ -1328,21 +1025,9 @@ typedef enum bpf_perf_event_ret
 
 /* raw perf buffer options, giving most power and control */
 struct perf_buffer_raw_opts {
-	union {
-		struct {
-			size_t sz;
-			long :0;
-			long :0;
-		};
-		struct { /* DEPRECATED: will be removed in v1.0 */
-			/* perf event attrs passed directly into perf_event_open() */
-			struct perf_event_attr *attr;
-			/* raw event callback */
-			perf_buffer_event_fn event_cb;
-			/* ctx is provided to event_cb */
-			void *ctx;
-		};
-	};
+	size_t sz;
+	long :0;
+	long :0;
 	/* if cpu_cnt == 0, open all on all possible CPUs (up to the number of
 	 * max_entries of given PERF_EVENT_ARRAY map)
 	 */
@@ -1354,26 +1039,13 @@ struct perf_buffer_raw_opts {
 };
 #define perf_buffer_raw_opts__last_field map_keys
 
+struct perf_event_attr;
+
 LIBBPF_API struct perf_buffer *
 perf_buffer__new_raw(int map_fd, size_t page_cnt, struct perf_event_attr *attr,
 		     perf_buffer_event_fn event_cb, void *ctx,
 		     const struct perf_buffer_raw_opts *opts);
 
-LIBBPF_API struct perf_buffer *
-perf_buffer__new_raw_v0_6_0(int map_fd, size_t page_cnt, struct perf_event_attr *attr,
-			    perf_buffer_event_fn event_cb, void *ctx,
-			    const struct perf_buffer_raw_opts *opts);
-
-LIBBPF_API LIBBPF_DEPRECATED_SINCE(0, 7, "use new variant of perf_buffer__new_raw() instead")
-struct perf_buffer *perf_buffer__new_raw_deprecated(int map_fd, size_t page_cnt,
-						    const struct perf_buffer_raw_opts *opts);
-
-#define perf_buffer__new_raw(...) ___libbpf_overload(___perf_buffer_new_raw, __VA_ARGS__)
-#define ___perf_buffer_new_raw6(map_fd, page_cnt, attr, event_cb, ctx, opts) \
-	perf_buffer__new_raw(map_fd, page_cnt, attr, event_cb, ctx, opts)
-#define ___perf_buffer_new_raw3(map_fd, page_cnt, opts) \
-	perf_buffer__new_raw_deprecated(map_fd, page_cnt, opts)
-
 LIBBPF_API void perf_buffer__free(struct perf_buffer *pb);
 LIBBPF_API int perf_buffer__epoll_fd(const struct perf_buffer *pb);
 LIBBPF_API int perf_buffer__poll(struct perf_buffer *pb, int timeout_ms);
@@ -1382,15 +1054,6 @@ LIBBPF_API int perf_buffer__consume_buffer(struct perf_buffer *pb, size_t buf_id
 LIBBPF_API size_t perf_buffer__buffer_cnt(const struct perf_buffer *pb);
 LIBBPF_API int perf_buffer__buffer_fd(const struct perf_buffer *pb, size_t buf_idx);
 
-typedef enum bpf_perf_event_ret
-	(*bpf_perf_event_print_t)(struct perf_event_header *hdr,
-				  void *private_data);
-LIBBPF_DEPRECATED_SINCE(0, 8, "use perf_buffer__poll() or  perf_buffer__consume() instead")
-LIBBPF_API enum bpf_perf_event_ret
-bpf_perf_event_read_simple(void *mmap_mem, size_t mmap_size, size_t page_size,
-			   void **copy_mem, size_t *copy_size,
-			   bpf_perf_event_print_t fn, void *private_data);
-
 struct bpf_prog_linfo;
 struct bpf_prog_info;
 
@@ -1412,14 +1075,6 @@ bpf_prog_linfo__lfind(const struct bpf_prog_linfo *prog_linfo,
  * user, causing subsequent probes to fail. In this case, the caller may want
  * to adjust that limit with setrlimit().
  */
-LIBBPF_DEPRECATED_SINCE(0, 8, "use libbpf_probe_bpf_prog_type() instead")
-LIBBPF_API bool bpf_probe_prog_type(enum bpf_prog_type prog_type, __u32 ifindex);
-LIBBPF_DEPRECATED_SINCE(0, 8, "use libbpf_probe_bpf_map_type() instead")
-LIBBPF_API bool bpf_probe_map_type(enum bpf_map_type map_type, __u32 ifindex);
-LIBBPF_DEPRECATED_SINCE(0, 8, "use libbpf_probe_bpf_helper() instead")
-LIBBPF_API bool bpf_probe_helper(enum bpf_func_id id, enum bpf_prog_type prog_type, __u32 ifindex);
-LIBBPF_DEPRECATED_SINCE(0, 8, "implement your own or use bpftool for feature detection")
-LIBBPF_API bool bpf_probe_large_insn_limit(__u32 ifindex);
 
 /**
  * @brief **libbpf_probe_bpf_prog_type()** detects if host kernel supports
@@ -1463,72 +1118,6 @@ LIBBPF_API int libbpf_probe_bpf_map_type(enum bpf_map_type map_type, const void
 LIBBPF_API int libbpf_probe_bpf_helper(enum bpf_prog_type prog_type,
 				       enum bpf_func_id helper_id, const void *opts);
 
-/*
- * Get bpf_prog_info in continuous memory
- *
- * struct bpf_prog_info has multiple arrays. The user has option to choose
- * arrays to fetch from kernel. The following APIs provide an uniform way to
- * fetch these data. All arrays in bpf_prog_info are stored in a single
- * continuous memory region. This makes it easy to store the info in a
- * file.
- *
- * Before writing bpf_prog_info_linear to files, it is necessary to
- * translate pointers in bpf_prog_info to offsets. Helper functions
- * bpf_program__bpil_addr_to_offs() and bpf_program__bpil_offs_to_addr()
- * are introduced to switch between pointers and offsets.
- *
- * Examples:
- *   # To fetch map_ids and prog_tags:
- *   __u64 arrays = (1UL << BPF_PROG_INFO_MAP_IDS) |
- *           (1UL << BPF_PROG_INFO_PROG_TAGS);
- *   struct bpf_prog_info_linear *info_linear =
- *           bpf_program__get_prog_info_linear(fd, arrays);
- *
- *   # To save data in file
- *   bpf_program__bpil_addr_to_offs(info_linear);
- *   write(f, info_linear, sizeof(*info_linear) + info_linear->data_len);
- *
- *   # To read data from file
- *   read(f, info_linear, <proper_size>);
- *   bpf_program__bpil_offs_to_addr(info_linear);
- */
-enum bpf_prog_info_array {
-	BPF_PROG_INFO_FIRST_ARRAY = 0,
-	BPF_PROG_INFO_JITED_INSNS = 0,
-	BPF_PROG_INFO_XLATED_INSNS,
-	BPF_PROG_INFO_MAP_IDS,
-	BPF_PROG_INFO_JITED_KSYMS,
-	BPF_PROG_INFO_JITED_FUNC_LENS,
-	BPF_PROG_INFO_FUNC_INFO,
-	BPF_PROG_INFO_LINE_INFO,
-	BPF_PROG_INFO_JITED_LINE_INFO,
-	BPF_PROG_INFO_PROG_TAGS,
-	BPF_PROG_INFO_LAST_ARRAY,
-};
-
-struct bpf_prog_info_linear {
-	/* size of struct bpf_prog_info, when the tool is compiled */
-	__u32			info_len;
-	/* total bytes allocated for data, round up to 8 bytes */
-	__u32			data_len;
-	/* which arrays are included in data */
-	__u64			arrays;
-	struct bpf_prog_info	info;
-	__u8			data[];
-};
-
-LIBBPF_DEPRECATED_SINCE(0, 6, "use a custom linear prog_info wrapper")
-LIBBPF_API struct bpf_prog_info_linear *
-bpf_program__get_prog_info_linear(int fd, __u64 arrays);
-
-LIBBPF_DEPRECATED_SINCE(0, 6, "use a custom linear prog_info wrapper")
-LIBBPF_API void
-bpf_program__bpil_addr_to_offs(struct bpf_prog_info_linear *info_linear);
-
-LIBBPF_DEPRECATED_SINCE(0, 6, "use a custom linear prog_info wrapper")
-LIBBPF_API void
-bpf_program__bpil_offs_to_addr(struct bpf_prog_info_linear *info_linear);
-
 /**
  * @brief **libbpf_num_possible_cpus()** is a helper function to get the
  * number of possible CPUs that the host kernel supports and expects.

src/libbpf.map

@@ -1,29 +1,14 @@
 LIBBPF_0.0.1 {
 	global:
 		bpf_btf_get_fd_by_id;
-		bpf_create_map;
-		bpf_create_map_in_map;
-		bpf_create_map_in_map_node;
-		bpf_create_map_name;
-		bpf_create_map_node;
-		bpf_create_map_xattr;
-		bpf_load_btf;
-		bpf_load_program;
-		bpf_load_program_xattr;
 		bpf_map__btf_key_type_id;
 		bpf_map__btf_value_type_id;
-		bpf_map__def;
 		bpf_map__fd;
-		bpf_map__is_offload_neutral;
 		bpf_map__name;
-		bpf_map__next;
 		bpf_map__pin;
-		bpf_map__prev;
-		bpf_map__priv;
 		bpf_map__reuse_fd;
 		bpf_map__set_ifindex;
 		bpf_map__set_inner_map_fd;
-		bpf_map__set_priv;
 		bpf_map__unpin;
 		bpf_map_delete_elem;
 		bpf_map_get_fd_by_id;
@@ -38,79 +23,37 @@ LIBBPF_0.0.1 {
 		bpf_object__btf_fd;
 		bpf_object__close;
 		bpf_object__find_map_by_name;
-		bpf_object__find_map_by_offset;
-		bpf_object__find_program_by_title;
 		bpf_object__kversion;
 		bpf_object__load;
 		bpf_object__name;
-		bpf_object__next;
 		bpf_object__open;
-		bpf_object__open_buffer;
-		bpf_object__open_xattr;
 		bpf_object__pin;
 		bpf_object__pin_maps;
 		bpf_object__pin_programs;
-		bpf_object__priv;
-		bpf_object__set_priv;
-		bpf_object__unload;
 		bpf_object__unpin_maps;
 		bpf_object__unpin_programs;
-		bpf_perf_event_read_simple;
 		bpf_prog_attach;
 		bpf_prog_detach;
 		bpf_prog_detach2;
 		bpf_prog_get_fd_by_id;
 		bpf_prog_get_next_id;
-		bpf_prog_load;
-		bpf_prog_load_xattr;
 		bpf_prog_query;
-		bpf_prog_test_run;
-		bpf_prog_test_run_xattr;
 		bpf_program__fd;
-		bpf_program__is_kprobe;
-		bpf_program__is_perf_event;
-		bpf_program__is_raw_tracepoint;
-		bpf_program__is_sched_act;
-		bpf_program__is_sched_cls;
-		bpf_program__is_socket_filter;
-		bpf_program__is_tracepoint;
-		bpf_program__is_xdp;
-		bpf_program__load;
-		bpf_program__next;
-		bpf_program__nth_fd;
 		bpf_program__pin;
-		bpf_program__pin_instance;
-		bpf_program__prev;
-		bpf_program__priv;
 		bpf_program__set_expected_attach_type;
 		bpf_program__set_ifindex;
-		bpf_program__set_kprobe;
-		bpf_program__set_perf_event;
-		bpf_program__set_prep;
-		bpf_program__set_priv;
-		bpf_program__set_raw_tracepoint;
-		bpf_program__set_sched_act;
-		bpf_program__set_sched_cls;
-		bpf_program__set_socket_filter;
-		bpf_program__set_tracepoint;
 		bpf_program__set_type;
-		bpf_program__set_xdp;
-		bpf_program__title;
 		bpf_program__unload;
 		bpf_program__unpin;
-		bpf_program__unpin_instance;
 		bpf_prog_linfo__free;
 		bpf_prog_linfo__new;
 		bpf_prog_linfo__lfind_addr_func;
 		bpf_prog_linfo__lfind;
 		bpf_raw_tracepoint_open;
-		bpf_set_link_xdp_fd;
 		bpf_task_fd_query;
-		bpf_verify_program;
 		btf__fd;
 		btf__find_by_name;
 		btf__free;
-		btf__get_from_id;
 		btf__name_by_offset;
 		btf__new;
 		btf__resolve_size;
@@ -127,48 +70,24 @@ LIBBPF_0.0.1 {
 
 LIBBPF_0.0.2 {
 	global:
-		bpf_probe_helper;
-		bpf_probe_map_type;
-		bpf_probe_prog_type;
-		bpf_map__resize;
 		bpf_map_lookup_elem_flags;
 		bpf_object__btf;
 		bpf_object__find_map_fd_by_name;
-		bpf_get_link_xdp_id;
-		btf__dedup;
-		btf__get_map_kv_tids;
-		btf__get_nr_types;
 		btf__get_raw_data;
-		btf__load;
 		btf_ext__free;
-		btf_ext__func_info_rec_size;
 		btf_ext__get_raw_data;
-		btf_ext__line_info_rec_size;
 		btf_ext__new;
-		btf_ext__reloc_func_info;
-		btf_ext__reloc_line_info;
-		xsk_umem__create;
-		xsk_socket__create;
-		xsk_umem__delete;
-		xsk_socket__delete;
-		xsk_umem__fd;
-		xsk_socket__fd;
-		bpf_program__get_prog_info_linear;
-		bpf_program__bpil_addr_to_offs;
-		bpf_program__bpil_offs_to_addr;
 } LIBBPF_0.0.1;
 
 LIBBPF_0.0.3 {
 	global:
 		bpf_map__is_internal;
 		bpf_map_freeze;
-		btf__finalize_data;
 } LIBBPF_0.0.2;
 
 LIBBPF_0.0.4 {
 	global:
 		bpf_link__destroy;
-		bpf_object__load_xattr;
 		bpf_program__attach_kprobe;
 		bpf_program__attach_perf_event;
 		bpf_program__attach_raw_tracepoint;
@@ -176,14 +95,10 @@ LIBBPF_0.0.4 {
 		bpf_program__attach_uprobe;
 		btf_dump__dump_type;
 		btf_dump__free;
-		btf_dump__new;
 		btf__parse_elf;
 		libbpf_num_possible_cpus;
 		perf_buffer__free;
-		perf_buffer__new;
-		perf_buffer__new_raw;
 		perf_buffer__poll;
-		xsk_umem__create;
 } LIBBPF_0.0.3;
 
 LIBBPF_0.0.5 {
@@ -193,7 +108,6 @@ LIBBPF_0.0.5 {
 
 LIBBPF_0.0.6 {
 	global:
-		bpf_get_link_xdp_info;
 		bpf_map__get_pin_path;
 		bpf_map__is_pinned;
 		bpf_map__set_pin_path;
@@ -202,9 +116,6 @@ LIBBPF_0.0.6 {
 		bpf_program__attach_trace;
 		bpf_program__get_expected_attach_type;
 		bpf_program__get_type;
-		bpf_program__is_tracing;
-		bpf_program__set_tracing;
-		bpf_program__size;
 		btf__find_by_name_kind;
 		libbpf_find_vmlinux_btf_id;
 } LIBBPF_0.0.5;
@@ -224,14 +135,8 @@ LIBBPF_0.0.7 {
 		bpf_object__detach_skeleton;
 		bpf_object__load_skeleton;
 		bpf_object__open_skeleton;
-		bpf_probe_large_insn_limit;
-		bpf_prog_attach_xattr;
 		bpf_program__attach;
 		bpf_program__name;
-		bpf_program__is_extension;
-		bpf_program__is_struct_ops;
-		bpf_program__set_extension;
-		bpf_program__set_struct_ops;
 		btf__align_of;
 		libbpf_find_kernel_btf;
 } LIBBPF_0.0.6;
@@ -250,10 +155,7 @@ LIBBPF_0.0.8 {
 		bpf_prog_attach_opts;
 		bpf_program__attach_cgroup;
 		bpf_program__attach_lsm;
-		bpf_program__is_lsm;
 		bpf_program__set_attach_target;
-		bpf_program__set_lsm;
-		bpf_set_link_xdp_fd_opts;
 } LIBBPF_0.0.7;
 
 LIBBPF_0.0.9 {
@@ -291,9 +193,7 @@ LIBBPF_0.1.0 {
 		bpf_map__value_size;
 		bpf_program__attach_xdp;
 		bpf_program__autoload;
-		bpf_program__is_sk_lookup;
 		bpf_program__set_autoload;
-		bpf_program__set_sk_lookup;
 		btf__parse;
 		btf__parse_raw;
 		btf__pointer_size;
@@ -336,7 +236,6 @@ LIBBPF_0.2.0 {
 		perf_buffer__buffer_fd;
 		perf_buffer__epoll_fd;
 		perf_buffer__consume_buffer;
-		xsk_socket__create_shared;
 } LIBBPF_0.1.0;
 
 LIBBPF_0.3.0 {
@@ -348,8 +247,6 @@ LIBBPF_0.3.0 {
 		btf__new_empty_split;
 		btf__new_split;
 		ring_buffer__epoll_fd;
-		xsk_setup_xdp_prog;
-		xsk_socket__update_xskmap;
 } LIBBPF_0.2.0;
 
 LIBBPF_0.4.0 {
@@ -397,7 +294,6 @@ LIBBPF_0.6.0 {
 		bpf_object__next_program;
 		bpf_object__prev_map;
 		bpf_object__prev_program;
-		bpf_prog_load_deprecated;
 		bpf_prog_load;
 		bpf_program__flags;
 		bpf_program__insn_cnt;
@@ -407,18 +303,14 @@ LIBBPF_0.6.0 {
 		btf__add_decl_tag;
 		btf__add_type_tag;
 		btf__dedup;
-		btf__dedup_deprecated;
 		btf__raw_data;
 		btf__type_cnt;
 		btf_dump__new;
-		btf_dump__new_deprecated;
 		libbpf_major_version;
 		libbpf_minor_version;
 		libbpf_version_string;
 		perf_buffer__new;
-		perf_buffer__new_deprecated;
 		perf_buffer__new_raw;
-		perf_buffer__new_raw_deprecated;
 } LIBBPF_0.5.0;
 
 LIBBPF_0.7.0 {
@@ -434,10 +326,11 @@ LIBBPF_0.7.0 {
 		bpf_xdp_detach;
 		bpf_xdp_query;
 		bpf_xdp_query_id;
+		btf_ext__raw_data;
 		libbpf_probe_bpf_helper;
 		libbpf_probe_bpf_map_type;
 		libbpf_probe_bpf_prog_type;
-		libbpf_set_memlock_rlim_max;
+		libbpf_set_memlock_rlim;
 } LIBBPF_0.6.0;
 
 LIBBPF_0.8.0 {
@@ -459,3 +352,14 @@ LIBBPF_0.8.0 {
 		libbpf_register_prog_handler;
 		libbpf_unregister_prog_handler;
 } LIBBPF_0.7.0;
+
+LIBBPF_1.0.0 {
+	global:
+		bpf_prog_query_opts;
+		btf__add_enum64;
+		btf__add_enum64_value;
+		libbpf_bpf_attach_type_str;
+		libbpf_bpf_link_type_str;
+		libbpf_bpf_map_type_str;
+		libbpf_bpf_prog_type_str;
+};

src/libbpf_common.h

@@ -30,20 +30,10 @@
 /* Add checks for other versions below when planning deprecation of API symbols
  * with the LIBBPF_DEPRECATED_SINCE macro.
  */
-#if __LIBBPF_CURRENT_VERSION_GEQ(0, 6)
-#define __LIBBPF_MARK_DEPRECATED_0_6(X) X
+#if __LIBBPF_CURRENT_VERSION_GEQ(1, 0)
+#define __LIBBPF_MARK_DEPRECATED_1_0(X) X
 #else
-#define __LIBBPF_MARK_DEPRECATED_0_6(X)
-#endif
-#if __LIBBPF_CURRENT_VERSION_GEQ(0, 7)
-#define __LIBBPF_MARK_DEPRECATED_0_7(X) X
-#else
-#define __LIBBPF_MARK_DEPRECATED_0_7(X)
-#endif
-#if __LIBBPF_CURRENT_VERSION_GEQ(0, 8)
-#define __LIBBPF_MARK_DEPRECATED_0_8(X) X
-#else
-#define __LIBBPF_MARK_DEPRECATED_0_8(X)
+#define __LIBBPF_MARK_DEPRECATED_1_0(X)
 #endif
 
 /* This set of internal macros allows to do "function overloading" based on

src/libbpf_internal.h

@@ -15,7 +15,6 @@
 #include <linux/err.h>
 #include <fcntl.h>
 #include <unistd.h>
-#include "libbpf_legacy.h"
 #include "relo_core.h"
 
 /* make sure libbpf doesn't use kernel-only integer typedefs */
@@ -351,6 +350,8 @@ enum kern_feature_id {
 	FEAT_MEMCG_ACCOUNT,
 	/* BPF cookie (bpf_get_attach_cookie() BPF helper) support */
 	FEAT_BPF_COOKIE,
+	/* BTF_KIND_ENUM64 support and BTF_KIND_ENUM kflag support */
+	FEAT_BTF_ENUM64,
 	__FEAT_CNT,
 };
 
@@ -476,8 +477,6 @@ int btf_ext_visit_str_offs(struct btf_ext *btf_ext, str_off_visit_fn visit, void
 __s32 btf__find_by_name_kind_own(const struct btf *btf, const char *type_name,
 				 __u32 kind);
 
-extern enum libbpf_strict_mode libbpf_mode;
-
 typedef int (*kallsyms_cb_t)(unsigned long long sym_addr, char sym_type,
 			     const char *sym_name, void *ctx);
 
@@ -496,12 +495,8 @@ static inline int libbpf_err(int ret)
  */
 static inline int libbpf_err_errno(int ret)
 {
-	if (libbpf_mode & LIBBPF_STRICT_DIRECT_ERRS)
-		/* errno is already assumed to be set on error */
-		return ret < 0 ? -errno : ret;
-
-	/* legacy: on error return -1 directly and don't touch errno */
-	return ret;
+	/* errno is already assumed to be set on error */
+	return ret < 0 ? -errno : ret;
 }
 
 /* handle error for pointer-returning APIs, err is assumed to be < 0 always */
@@ -509,12 +504,7 @@ static inline void *libbpf_err_ptr(int err)
 {
 	/* set errno on error, this doesn't break anything */
 	errno = -err;
-
-	if (libbpf_mode & LIBBPF_STRICT_CLEAN_PTRS)
-		return NULL;
-
-	/* legacy: encode err as ptr */
-	return ERR_PTR(err);
+	return NULL;
 }
 
 /* handle pointer-returning APIs' error handling */
@@ -524,11 +514,7 @@ static inline void *libbpf_ptr(void *ret)
 	if (IS_ERR(ret))
 		errno = -PTR_ERR(ret);
 
-	if (libbpf_mode & LIBBPF_STRICT_CLEAN_PTRS)
-		return IS_ERR(ret) ? NULL : ret;
-
-	/* legacy: pass-through original pointer */
-	return ret;
+	return IS_ERR(ret) ? NULL : ret;
 }
 
 static inline bool str_is_empty(const char *s)
@@ -580,4 +566,9 @@ struct bpf_link * usdt_manager_attach_usdt(struct usdt_manager *man,
 					   const char *usdt_provider, const char *usdt_name,
 					   __u64 usdt_cookie);
 
+static inline bool is_pow_of_2(size_t x)
+{
+	return x && (x & (x - 1)) == 0;
+}
+
 #endif /* __LIBBPF_LIBBPF_INTERNAL_H */

src/libbpf_legacy.h

@@ -20,6 +20,11 @@
 extern "C" {
 #endif
 
+/* As of libbpf 1.0 libbpf_set_strict_mode() and enum libbpf_struct_mode have
+ * no effect. But they are left in libbpf_legacy.h so that applications that
+ * prepared for libbpf 1.0 before final release by using
+ * libbpf_set_strict_mode() still work with libbpf 1.0+ without any changes.
+ */
 enum libbpf_strict_mode {
 	/* Turn on all supported strict features of libbpf to simulate libbpf
 	 * v1.0 behavior.
@@ -71,8 +76,8 @@ enum libbpf_strict_mode {
 	 * first BPF program or map creation operation. This is done only if
 	 * kernel is too old to support memcg-based memory accounting for BPF
 	 * subsystem. By default, RLIMIT_MEMLOCK limit is set to RLIM_INFINITY,
-	 * but it can be overriden with libbpf_set_memlock_rlim_max() API.
-	 * Note that libbpf_set_memlock_rlim_max() needs to be called before
+	 * but it can be overriden with libbpf_set_memlock_rlim() API.
+	 * Note that libbpf_set_memlock_rlim() needs to be called before
 	 * the very first bpf_prog_load(), bpf_map_create() or bpf_object__load()
 	 * operation.
 	 */
@@ -88,6 +93,25 @@ enum libbpf_strict_mode {
 
 LIBBPF_API int libbpf_set_strict_mode(enum libbpf_strict_mode mode);
 
+/**
+ * @brief **libbpf_get_error()** extracts the error code from the passed
+ * pointer
+ * @param ptr pointer returned from libbpf API function
+ * @return error code; or 0 if no error occured
+ *
+ * Note, as of libbpf 1.0 this function is not necessary and not recommended
+ * to be used. Libbpf doesn't return error code embedded into the pointer
+ * itself. Instead, NULL is returned on error and error code is passed through
+ * thread-local errno variable. **libbpf_get_error()** is just returning -errno
+ * value if it receives NULL, which is correct only if errno hasn't been
+ * modified between libbpf API call and corresponding **libbpf_get_error()**
+ * call. Prefer to check return for NULL and use errno directly.
+ *
+ * This API is left in libbpf 1.0 to allow applications that were 1.0-ready
+ * before final libbpf 1.0 without needing to change them.
+ */
+LIBBPF_API long libbpf_get_error(const void *ptr);
+
 #define DECLARE_LIBBPF_OPTS LIBBPF_OPTS
 
 /* "Discouraged" APIs which don't follow consistent libbpf naming patterns.

src/libbpf_probes.c

@@ -17,47 +17,14 @@
 #include "libbpf.h"
 #include "libbpf_internal.h"
 
-static bool grep(const char *buffer, const char *pattern)
-{
-	return !!strstr(buffer, pattern);
-}
-
-static int get_vendor_id(int ifindex)
-{
-	char ifname[IF_NAMESIZE], path[64], buf[8];
-	ssize_t len;
-	int fd;
-
-	if (!if_indextoname(ifindex, ifname))
-		return -1;
-
-	snprintf(path, sizeof(path), "/sys/class/net/%s/device/vendor", ifname);
-
-	fd = open(path, O_RDONLY | O_CLOEXEC);
-	if (fd < 0)
-		return -1;
-
-	len = read(fd, buf, sizeof(buf));
-	close(fd);
-	if (len < 0)
-		return -1;
-	if (len >= (ssize_t)sizeof(buf))
-		return -1;
-	buf[len] = '\0';
-
-	return strtol(buf, NULL, 0);
-}
-
 static int probe_prog_load(enum bpf_prog_type prog_type,
 			   const struct bpf_insn *insns, size_t insns_cnt,
-			   char *log_buf, size_t log_buf_sz,
-			   __u32 ifindex)
+			   char *log_buf, size_t log_buf_sz)
 {
 	LIBBPF_OPTS(bpf_prog_load_opts, opts,
 		.log_buf = log_buf,
 		.log_size = log_buf_sz,
 		.log_level = log_buf ? 1 : 0,
-		.prog_ifindex = ifindex,
 	);
 	int fd, err, exp_err = 0;
 	const char *exp_msg = NULL;
@@ -161,31 +128,10 @@ int libbpf_probe_bpf_prog_type(enum bpf_prog_type prog_type, const void *opts)
 	if (opts)
 		return libbpf_err(-EINVAL);
 
-	ret = probe_prog_load(prog_type, insns, insn_cnt, NULL, 0, 0);
+	ret = probe_prog_load(prog_type, insns, insn_cnt, NULL, 0);
 	return libbpf_err(ret);
 }
 
-bool bpf_probe_prog_type(enum bpf_prog_type prog_type, __u32 ifindex)
-{
-	struct bpf_insn insns[2] = {
-		BPF_MOV64_IMM(BPF_REG_0, 0),
-		BPF_EXIT_INSN()
-	};
-
-	/* prefer libbpf_probe_bpf_prog_type() unless offload is requested */
-	if (ifindex == 0)
-		return libbpf_probe_bpf_prog_type(prog_type, NULL) == 1;
-
-	if (ifindex && prog_type == BPF_PROG_TYPE_SCHED_CLS)
-		/* nfp returns -EINVAL on exit(0) with TC offload */
-		insns[0].imm = 2;
-
-	errno = 0;
-	probe_prog_load(prog_type, insns, ARRAY_SIZE(insns), NULL, 0, ifindex);
-
-	return errno != EINVAL && errno != EOPNOTSUPP;
-}
-
 int libbpf__load_raw_btf(const char *raw_types, size_t types_len,
 			 const char *str_sec, size_t str_len)
 {
@@ -242,15 +188,13 @@ static int load_local_storage_btf(void)
 				     strs, sizeof(strs));
 }
 
-static int probe_map_create(enum bpf_map_type map_type, __u32 ifindex)
+static int probe_map_create(enum bpf_map_type map_type)
 {
 	LIBBPF_OPTS(bpf_map_create_opts, opts);
 	int key_size, value_size, max_entries;
 	__u32 btf_key_type_id = 0, btf_value_type_id = 0;
 	int fd = -1, btf_fd = -1, fd_inner = -1, exp_err = 0, err;
 
-	opts.map_ifindex = ifindex;
-
 	key_size	= sizeof(__u32);
 	value_size	= sizeof(__u32);
 	max_entries	= 1;
@@ -326,12 +270,6 @@ static int probe_map_create(enum bpf_map_type map_type, __u32 ifindex)
 
 	if (map_type == BPF_MAP_TYPE_ARRAY_OF_MAPS ||
 	    map_type == BPF_MAP_TYPE_HASH_OF_MAPS) {
-		/* TODO: probe for device, once libbpf has a function to create
-		 * map-in-map for offload
-		 */
-		if (ifindex)
-			goto cleanup;
-
 		fd_inner = bpf_map_create(BPF_MAP_TYPE_HASH, NULL,
 					  sizeof(__u32), sizeof(__u32), 1, NULL);
 		if (fd_inner < 0)
@@ -370,15 +308,10 @@ int libbpf_probe_bpf_map_type(enum bpf_map_type map_type, const void *opts)
 	if (opts)
 		return libbpf_err(-EINVAL);
 
-	ret = probe_map_create(map_type, 0);
+	ret = probe_map_create(map_type);
 	return libbpf_err(ret);
 }
 
-bool bpf_probe_map_type(enum bpf_map_type map_type, __u32 ifindex)
-{
-	return probe_map_create(map_type, ifindex) == 1;
-}
-
 int libbpf_probe_bpf_helper(enum bpf_prog_type prog_type, enum bpf_func_id helper_id,
 			    const void *opts)
 {
@@ -407,7 +340,7 @@ int libbpf_probe_bpf_helper(enum bpf_prog_type prog_type, enum bpf_func_id helpe
 	}
 
 	buf[0] = '\0';
-	ret = probe_prog_load(prog_type, insns, insn_cnt, buf, sizeof(buf), 0);
+	ret = probe_prog_load(prog_type, insns, insn_cnt, buf, sizeof(buf));
 	if (ret < 0)
 		return libbpf_err(ret);
 
@@ -427,51 +360,3 @@ int libbpf_probe_bpf_helper(enum bpf_prog_type prog_type, enum bpf_func_id helpe
 		return 0;
 	return 1; /* assume supported */
 }
-
-bool bpf_probe_helper(enum bpf_func_id id, enum bpf_prog_type prog_type,
-		      __u32 ifindex)
-{
-	struct bpf_insn insns[2] = {
-		BPF_EMIT_CALL(id),
-		BPF_EXIT_INSN()
-	};
-	char buf[4096] = {};
-	bool res;
-
-	probe_prog_load(prog_type, insns, ARRAY_SIZE(insns), buf, sizeof(buf), ifindex);
-	res = !grep(buf, "invalid func ") && !grep(buf, "unknown func ");
-
-	if (ifindex) {
-		switch (get_vendor_id(ifindex)) {
-		case 0x19ee: /* Netronome specific */
-			res = res && !grep(buf, "not supported by FW") &&
-				!grep(buf, "unsupported function id");
-			break;
-		default:
-			break;
-		}
-	}
-
-	return res;
-}
-
-/*
- * Probe for availability of kernel commit (5.3):
- *
- * c04c0d2b968a ("bpf: increase complexity limit and maximum program size")
- */
-bool bpf_probe_large_insn_limit(__u32 ifindex)
-{
-	struct bpf_insn insns[BPF_MAXINSNS + 1];
-	int i;
-
-	for (i = 0; i < BPF_MAXINSNS; i++)
-		insns[i] = BPF_MOV64_IMM(BPF_REG_0, 1);
-	insns[BPF_MAXINSNS] = BPF_EXIT_INSN();
-
-	errno = 0;
-	probe_prog_load(BPF_PROG_TYPE_SCHED_CLS, insns, ARRAY_SIZE(insns), NULL, 0,
-			ifindex);
-
-	return errno != E2BIG && errno != EINVAL;
-}

src/libbpf_version.h

@@ -3,7 +3,7 @@
 #ifndef __LIBBPF_VERSION_H
 #define __LIBBPF_VERSION_H
 
-#define LIBBPF_MAJOR_VERSION 0
-#define LIBBPF_MINOR_VERSION 8
+#define LIBBPF_MAJOR_VERSION 1
+#define LIBBPF_MINOR_VERSION 0
 
 #endif /* __LIBBPF_VERSION_H */

src/linker.c

@@ -697,11 +697,6 @@ static int linker_load_obj_file(struct bpf_linker *linker, const char *filename,
 	return err;
 }
 
-static bool is_pow_of_2(size_t x)
-{
-	return x && (x & (x - 1)) == 0;
-}
-
 static int linker_sanity_check_elf(struct src_obj *obj)
 {
 	struct src_sec *sec;
@@ -1340,6 +1335,7 @@ recur:
 	case BTF_KIND_STRUCT:
 	case BTF_KIND_UNION:
 	case BTF_KIND_ENUM:
+	case BTF_KIND_ENUM64:
 	case BTF_KIND_FWD:
 	case BTF_KIND_FUNC:
 	case BTF_KIND_VAR:
@@ -1362,6 +1358,7 @@ recur:
 	case BTF_KIND_INT:
 	case BTF_KIND_FLOAT:
 	case BTF_KIND_ENUM:
+	case BTF_KIND_ENUM64:
 		/* ignore encoding for int and enum values for enum */
 		if (t1->size != t2->size) {
 			pr_warn("global '%s': incompatible %s '%s' size %u and %u\n",

src/netlink.c

@@ -27,6 +27,14 @@ typedef int (*libbpf_dump_nlmsg_t)(void *cookie, void *msg, struct nlattr **tb);
 typedef int (*__dump_nlmsg_t)(struct nlmsghdr *nlmsg, libbpf_dump_nlmsg_t,
 			      void *cookie);
 
+struct xdp_link_info {
+	__u32 prog_id;
+	__u32 drv_prog_id;
+	__u32 hw_prog_id;
+	__u32 skb_prog_id;
+	__u8 attach_mode;
+};
+
 struct xdp_id_md {
 	int ifindex;
 	__u32 flags;
@@ -288,31 +296,6 @@ int bpf_xdp_detach(int ifindex, __u32 flags, const struct bpf_xdp_attach_opts *o
 	return bpf_xdp_attach(ifindex, -1, flags, opts);
 }
 
-int bpf_set_link_xdp_fd_opts(int ifindex, int fd, __u32 flags,
-			     const struct bpf_xdp_set_link_opts *opts)
-{
-	int old_fd = -1, ret;
-
-	if (!OPTS_VALID(opts, bpf_xdp_set_link_opts))
-		return libbpf_err(-EINVAL);
-
-	if (OPTS_HAS(opts, old_fd)) {
-		old_fd = OPTS_GET(opts, old_fd, -1);
-		flags |= XDP_FLAGS_REPLACE;
-	}
-
-	ret = __bpf_set_link_xdp_fd_replace(ifindex, fd, old_fd, flags);
-	return libbpf_err(ret);
-}
-
-int bpf_set_link_xdp_fd(int ifindex, int fd, __u32 flags)
-{
-	int ret;
-
-	ret = __bpf_set_link_xdp_fd_replace(ifindex, fd, 0, flags);
-	return libbpf_err(ret);
-}
-
 static int __dump_link_nlmsg(struct nlmsghdr *nlh,
 			     libbpf_dump_nlmsg_t dump_link_nlmsg, void *cookie)
 {
@@ -413,30 +396,6 @@ int bpf_xdp_query(int ifindex, int xdp_flags, struct bpf_xdp_query_opts *opts)
 	return 0;
 }
 
-int bpf_get_link_xdp_info(int ifindex, struct xdp_link_info *info,
-			  size_t info_size, __u32 flags)
-{
-	LIBBPF_OPTS(bpf_xdp_query_opts, opts);
-	size_t sz;
-	int err;
-
-	if (!info_size)
-		return libbpf_err(-EINVAL);
-
-	err = bpf_xdp_query(ifindex, flags, &opts);
-	if (err)
-		return libbpf_err(err);
-
-	/* struct xdp_link_info field layout matches struct bpf_xdp_query_opts
-	 * layout after sz field
-	 */
-	sz = min(info_size, offsetofend(struct xdp_link_info, attach_mode));
-	memcpy(info, &opts.prog_id, sz);
-	memset((void *)info + sz, 0, info_size - sz);
-
-	return 0;
-}
-
 int bpf_xdp_query_id(int ifindex, int flags, __u32 *prog_id)
 {
 	LIBBPF_OPTS(bpf_xdp_query_opts, opts);
@@ -463,11 +422,6 @@ int bpf_xdp_query_id(int ifindex, int flags, __u32 *prog_id)
 }
 
 
-int bpf_get_link_xdp_id(int ifindex, __u32 *prog_id, __u32 flags)
-{
-	return bpf_xdp_query_id(ifindex, flags, prog_id);
-}
-
 typedef int (*qdisc_config_t)(struct libbpf_nla_req *req);
 
 static int clsact_config(struct libbpf_nla_req *req)

src/relo_core.c

@@ -141,6 +141,86 @@ static bool core_relo_is_enumval_based(enum bpf_core_relo_kind kind)
 	}
 }
 
+int __bpf_core_types_are_compat(const struct btf *local_btf, __u32 local_id,
+				const struct btf *targ_btf, __u32 targ_id, int level)
+{
+	const struct btf_type *local_type, *targ_type;
+	int depth = 32; /* max recursion depth */
+
+	/* caller made sure that names match (ignoring flavor suffix) */
+	local_type = btf_type_by_id(local_btf, local_id);
+	targ_type = btf_type_by_id(targ_btf, targ_id);
+	if (!btf_kind_core_compat(local_type, targ_type))
+		return 0;
+
+recur:
+	depth--;
+	if (depth < 0)
+		return -EINVAL;
+
+	local_type = skip_mods_and_typedefs(local_btf, local_id, &local_id);
+	targ_type = skip_mods_and_typedefs(targ_btf, targ_id, &targ_id);
+	if (!local_type || !targ_type)
+		return -EINVAL;
+
+	if (!btf_kind_core_compat(local_type, targ_type))
+		return 0;
+
+	switch (btf_kind(local_type)) {
+	case BTF_KIND_UNKN:
+	case BTF_KIND_STRUCT:
+	case BTF_KIND_UNION:
+	case BTF_KIND_ENUM:
+	case BTF_KIND_FWD:
+	case BTF_KIND_ENUM64:
+		return 1;
+	case BTF_KIND_INT:
+		/* just reject deprecated bitfield-like integers; all other
+		 * integers are by default compatible between each other
+		 */
+		return btf_int_offset(local_type) == 0 && btf_int_offset(targ_type) == 0;
+	case BTF_KIND_PTR:
+		local_id = local_type->type;
+		targ_id = targ_type->type;
+		goto recur;
+	case BTF_KIND_ARRAY:
+		local_id = btf_array(local_type)->type;
+		targ_id = btf_array(targ_type)->type;
+		goto recur;
+	case BTF_KIND_FUNC_PROTO: {
+		struct btf_param *local_p = btf_params(local_type);
+		struct btf_param *targ_p = btf_params(targ_type);
+		__u16 local_vlen = btf_vlen(local_type);
+		__u16 targ_vlen = btf_vlen(targ_type);
+		int i, err;
+
+		if (local_vlen != targ_vlen)
+			return 0;
+
+		for (i = 0; i < local_vlen; i++, local_p++, targ_p++) {
+			if (level <= 0)
+				return -EINVAL;
+
+			skip_mods_and_typedefs(local_btf, local_p->type, &local_id);
+			skip_mods_and_typedefs(targ_btf, targ_p->type, &targ_id);
+			err = __bpf_core_types_are_compat(local_btf, local_id, targ_btf, targ_id,
+							  level - 1);
+			if (err <= 0)
+				return err;
+		}
+
+		/* tail recurse for return type check */
+		skip_mods_and_typedefs(local_btf, local_type->type, &local_id);
+		skip_mods_and_typedefs(targ_btf, targ_type->type, &targ_id);
+		goto recur;
+	}
+	default:
+		pr_warn("unexpected kind %s relocated, local [%d], target [%d]\n",
+			btf_kind_str(local_type), local_id, targ_id);
+		return 0;
+	}
+}
+
 /*
  * Turn bpf_core_relo into a low- and high-level spec representation,
  * validating correctness along the way, as well as calculating resulting
@@ -167,7 +247,7 @@ static bool core_relo_is_enumval_based(enum bpf_core_relo_kind kind)
  * just a parsed access string representation): [0, 1, 2, 3].
  *
  * High-level spec will capture only 3 points:
- *   - intial zero-index access by pointer (&s->... is the same as &s[0]...);
+ *   - initial zero-index access by pointer (&s->... is the same as &s[0]...);
  *   - field 'a' access (corresponds to '2' in low-level spec);
  *   - array element #3 access (corresponds to '3' in low-level spec).
  *
@@ -186,7 +266,7 @@ int bpf_core_parse_spec(const char *prog_name, const struct btf *btf,
 	struct bpf_core_accessor *acc;
 	const struct btf_type *t;
 	const char *name, *spec_str;
-	__u32 id;
+	__u32 id, name_off;
 	__s64 sz;
 
 	spec_str = btf__name_by_offset(btf, relo->access_str_off);
@@ -231,11 +311,13 @@ int bpf_core_parse_spec(const char *prog_name, const struct btf *btf,
 	spec->len++;
 
 	if (core_relo_is_enumval_based(relo->kind)) {
-		if (!btf_is_enum(t) || spec->raw_len > 1 || access_idx >= btf_vlen(t))
+		if (!btf_is_any_enum(t) || spec->raw_len > 1 || access_idx >= btf_vlen(t))
 			return -EINVAL;
 
 		/* record enumerator name in a first accessor */
-		acc->name = btf__name_by_offset(btf, btf_enum(t)[access_idx].name_off);
+		name_off = btf_is_enum(t) ? btf_enum(t)[access_idx].name_off
+					  : btf_enum64(t)[access_idx].name_off;
+		acc->name = btf__name_by_offset(btf, name_off);
 		return 0;
 	}
 
@@ -340,7 +422,7 @@ recur:
 
 	if (btf_is_composite(local_type) && btf_is_composite(targ_type))
 		return 1;
-	if (btf_kind(local_type) != btf_kind(targ_type))
+	if (!btf_kind_core_compat(local_type, targ_type))
 		return 0;
 
 	switch (btf_kind(local_type)) {
@@ -348,6 +430,7 @@ recur:
 	case BTF_KIND_FLOAT:
 		return 1;
 	case BTF_KIND_FWD:
+	case BTF_KIND_ENUM64:
 	case BTF_KIND_ENUM: {
 		const char *local_name, *targ_name;
 		size_t local_len, targ_len;
@@ -477,6 +560,7 @@ static int bpf_core_spec_match(struct bpf_core_spec *local_spec,
 	const struct bpf_core_accessor *local_acc;
 	struct bpf_core_accessor *targ_acc;
 	int i, sz, matched;
+	__u32 name_off;
 
 	memset(targ_spec, 0, sizeof(*targ_spec));
 	targ_spec->btf = targ_btf;
@@ -494,18 +578,22 @@ static int bpf_core_spec_match(struct bpf_core_spec *local_spec,
 
 	if (core_relo_is_enumval_based(local_spec->relo_kind)) {
 		size_t local_essent_len, targ_essent_len;
-		const struct btf_enum *e;
 		const char *targ_name;
 
 		/* has to resolve to an enum */
 		targ_type = skip_mods_and_typedefs(targ_spec->btf, targ_id, &targ_id);
-		if (!btf_is_enum(targ_type))
+		if (!btf_is_any_enum(targ_type))
 			return 0;
 
 		local_essent_len = bpf_core_essential_name_len(local_acc->name);
 
-		for (i = 0, e = btf_enum(targ_type); i < btf_vlen(targ_type); i++, e++) {
-			targ_name = btf__name_by_offset(targ_spec->btf, e->name_off);
+		for (i = 0; i < btf_vlen(targ_type); i++) {
+			if (btf_is_enum(targ_type))
+				name_off = btf_enum(targ_type)[i].name_off;
+			else
+				name_off = btf_enum64(targ_type)[i].name_off;
+
+			targ_name = btf__name_by_offset(targ_spec->btf, name_off);
 			targ_essent_len = bpf_core_essential_name_len(targ_name);
 			if (targ_essent_len != local_essent_len)
 				continue;
@@ -583,7 +671,7 @@ static int bpf_core_spec_match(struct bpf_core_spec *local_spec,
 static int bpf_core_calc_field_relo(const char *prog_name,
 				    const struct bpf_core_relo *relo,
 				    const struct bpf_core_spec *spec,
-				    __u32 *val, __u32 *field_sz, __u32 *type_id,
+				    __u64 *val, __u32 *field_sz, __u32 *type_id,
 				    bool *validate)
 {
 	const struct bpf_core_accessor *acc;
@@ -680,8 +768,7 @@ static int bpf_core_calc_field_relo(const char *prog_name,
 		*val = byte_sz;
 		break;
 	case BPF_CORE_FIELD_SIGNED:
-		/* enums will be assumed unsigned */
-		*val = btf_is_enum(mt) ||
+		*val = (btf_is_any_enum(mt) && BTF_INFO_KFLAG(mt->info)) ||
 		       (btf_int_encoding(mt) & BTF_INT_SIGNED);
 		if (validate)
 			*validate = true; /* signedness is never ambiguous */
@@ -708,7 +795,7 @@ static int bpf_core_calc_field_relo(const char *prog_name,
 
 static int bpf_core_calc_type_relo(const struct bpf_core_relo *relo,
 				   const struct bpf_core_spec *spec,
-				   __u32 *val, bool *validate)
+				   __u64 *val, bool *validate)
 {
 	__s64 sz;
 
@@ -751,10 +838,9 @@ static int bpf_core_calc_type_relo(const struct bpf_core_relo *relo,
 
 static int bpf_core_calc_enumval_relo(const struct bpf_core_relo *relo,
 				      const struct bpf_core_spec *spec,
-				      __u32 *val)
+				      __u64 *val)
 {
 	const struct btf_type *t;
-	const struct btf_enum *e;
 
 	switch (relo->kind) {
 	case BPF_CORE_ENUMVAL_EXISTS:
@@ -764,8 +850,10 @@ static int bpf_core_calc_enumval_relo(const struct bpf_core_relo *relo,
 		if (!spec)
 			return -EUCLEAN; /* request instruction poisoning */
 		t = btf_type_by_id(spec->btf, spec->spec[0].type_id);
-		e = btf_enum(t) + spec->spec[0].idx;
-		*val = e->val;
+		if (btf_is_enum(t))
+			*val = btf_enum(t)[spec->spec[0].idx].val;
+		else
+			*val = btf_enum64_value(btf_enum64(t) + spec->spec[0].idx);
 		break;
 	default:
 		return -EOPNOTSUPP;
@@ -929,7 +1017,7 @@ int bpf_core_patch_insn(const char *prog_name, struct bpf_insn *insn,
 			int insn_idx, const struct bpf_core_relo *relo,
 			int relo_idx, const struct bpf_core_relo_res *res)
 {
-	__u32 orig_val, new_val;
+	__u64 orig_val, new_val;
 	__u8 class;
 
 	class = BPF_CLASS(insn->code);
@@ -954,28 +1042,30 @@ poison:
 		if (BPF_SRC(insn->code) != BPF_K)
 			return -EINVAL;
 		if (res->validate && insn->imm != orig_val) {
-			pr_warn("prog '%s': relo #%d: unexpected insn #%d (ALU/ALU64) value: got %u, exp %u -> %u\n",
+			pr_warn("prog '%s': relo #%d: unexpected insn #%d (ALU/ALU64) value: got %u, exp %llu -> %llu\n",
 				prog_name, relo_idx,
-				insn_idx, insn->imm, orig_val, new_val);
+				insn_idx, insn->imm, (unsigned long long)orig_val,
+				(unsigned long long)new_val);
 			return -EINVAL;
 		}
 		orig_val = insn->imm;
 		insn->imm = new_val;
-		pr_debug("prog '%s': relo #%d: patched insn #%d (ALU/ALU64) imm %u -> %u\n",
+		pr_debug("prog '%s': relo #%d: patched insn #%d (ALU/ALU64) imm %llu -> %llu\n",
 			 prog_name, relo_idx, insn_idx,
-			 orig_val, new_val);
+			 (unsigned long long)orig_val, (unsigned long long)new_val);
 		break;
 	case BPF_LDX:
 	case BPF_ST:
 	case BPF_STX:
 		if (res->validate && insn->off != orig_val) {
-			pr_warn("prog '%s': relo #%d: unexpected insn #%d (LDX/ST/STX) value: got %u, exp %u -> %u\n",
-				prog_name, relo_idx, insn_idx, insn->off, orig_val, new_val);
+			pr_warn("prog '%s': relo #%d: unexpected insn #%d (LDX/ST/STX) value: got %u, exp %llu -> %llu\n",
+				prog_name, relo_idx, insn_idx, insn->off, (unsigned long long)orig_val,
+				(unsigned long long)new_val);
 			return -EINVAL;
 		}
 		if (new_val > SHRT_MAX) {
-			pr_warn("prog '%s': relo #%d: insn #%d (LDX/ST/STX) value too big: %u\n",
-				prog_name, relo_idx, insn_idx, new_val);
+			pr_warn("prog '%s': relo #%d: insn #%d (LDX/ST/STX) value too big: %llu\n",
+				prog_name, relo_idx, insn_idx, (unsigned long long)new_val);
 			return -ERANGE;
 		}
 		if (res->fail_memsz_adjust) {
@@ -987,8 +1077,9 @@ poison:
 
 		orig_val = insn->off;
 		insn->off = new_val;
-		pr_debug("prog '%s': relo #%d: patched insn #%d (LDX/ST/STX) off %u -> %u\n",
-			 prog_name, relo_idx, insn_idx, orig_val, new_val);
+		pr_debug("prog '%s': relo #%d: patched insn #%d (LDX/ST/STX) off %llu -> %llu\n",
+			 prog_name, relo_idx, insn_idx, (unsigned long long)orig_val,
+			 (unsigned long long)new_val);
 
 		if (res->new_sz != res->orig_sz) {
 			int insn_bytes_sz, insn_bpf_sz;
@@ -1024,20 +1115,20 @@ poison:
 			return -EINVAL;
 		}
 
-		imm = insn[0].imm + ((__u64)insn[1].imm << 32);
+		imm = (__u32)insn[0].imm | ((__u64)insn[1].imm << 32);
 		if (res->validate && imm != orig_val) {
-			pr_warn("prog '%s': relo #%d: unexpected insn #%d (LDIMM64) value: got %llu, exp %u -> %u\n",
+			pr_warn("prog '%s': relo #%d: unexpected insn #%d (LDIMM64) value: got %llu, exp %llu -> %llu\n",
 				prog_name, relo_idx,
 				insn_idx, (unsigned long long)imm,
-				orig_val, new_val);
+				(unsigned long long)orig_val, (unsigned long long)new_val);
 			return -EINVAL;
 		}
 
 		insn[0].imm = new_val;
-		insn[1].imm = 0; /* currently only 32-bit values are supported */
-		pr_debug("prog '%s': relo #%d: patched insn #%d (LDIMM64) imm64 %llu -> %u\n",
+		insn[1].imm = new_val >> 32;
+		pr_debug("prog '%s': relo #%d: patched insn #%d (LDIMM64) imm64 %llu -> %llu\n",
 			 prog_name, relo_idx, insn_idx,
-			 (unsigned long long)imm, new_val);
+			 (unsigned long long)imm, (unsigned long long)new_val);
 		break;
 	}
 	default:
@@ -1057,7 +1148,6 @@ poison:
 int bpf_core_format_spec(char *buf, size_t buf_sz, const struct bpf_core_spec *spec)
 {
 	const struct btf_type *t;
-	const struct btf_enum *e;
 	const char *s;
 	__u32 type_id;
 	int i, len = 0;
@@ -1086,10 +1176,23 @@ int bpf_core_format_spec(char *buf, size_t buf_sz, const struct bpf_core_spec *s
 
 	if (core_relo_is_enumval_based(spec->relo_kind)) {
 		t = skip_mods_and_typedefs(spec->btf, type_id, NULL);
-		e = btf_enum(t) + spec->raw_spec[0];
-		s = btf__name_by_offset(spec->btf, e->name_off);
+		if (btf_is_enum(t)) {
+			const struct btf_enum *e;
+			const char *fmt_str;
 
-		append_buf("::%s = %u", s, e->val);
+			e = btf_enum(t) + spec->raw_spec[0];
+			s = btf__name_by_offset(spec->btf, e->name_off);
+			fmt_str = BTF_INFO_KFLAG(t->info) ? "::%s = %d" : "::%s = %u";
+			append_buf(fmt_str, s, e->val);
+		} else {
+			const struct btf_enum64 *e;
+			const char *fmt_str;
+
+			e = btf_enum64(t) + spec->raw_spec[0];
+			s = btf__name_by_offset(spec->btf, e->name_off);
+			fmt_str = BTF_INFO_KFLAG(t->info) ? "::%s = %lld" : "::%s = %llu";
+			append_buf(fmt_str, s, (unsigned long long)btf_enum64_value(e));
+		}
 		return len;
 	}
 
@@ -1148,11 +1251,11 @@ int bpf_core_format_spec(char *buf, size_t buf_sz, const struct bpf_core_spec *s
  * 3. It is supported and expected that there might be multiple flavors
  *    matching the spec. As long as all the specs resolve to the same set of
  *    offsets across all candidates, there is no error. If there is any
- *    ambiguity, CO-RE relocation will fail. This is necessary to accomodate
- *    imprefection of BTF deduplication, which can cause slight duplication of
+ *    ambiguity, CO-RE relocation will fail. This is necessary to accommodate
+ *    imperfection of BTF deduplication, which can cause slight duplication of
  *    the same BTF type, if some directly or indirectly referenced (by
  *    pointer) type gets resolved to different actual types in different
- *    object files. If such situation occurs, deduplicated BTF will end up
+ *    object files. If such a situation occurs, deduplicated BTF will end up
  *    with two (or more) structurally identical types, which differ only in
  *    types they refer to through pointer. This should be OK in most cases and
  *    is not an error.
@@ -1261,10 +1364,12 @@ int bpf_core_calc_relo_insn(const char *prog_name,
 			 * decision and value, otherwise it's dangerous to
 			 * proceed due to ambiguity
 			 */
-			pr_warn("prog '%s': relo #%d: relocation decision ambiguity: %s %u != %s %u\n",
+			pr_warn("prog '%s': relo #%d: relocation decision ambiguity: %s %llu != %s %llu\n",
 				prog_name, relo_idx,
-				cand_res.poison ? "failure" : "success", cand_res.new_val,
-				targ_res->poison ? "failure" : "success", targ_res->new_val);
+				cand_res.poison ? "failure" : "success",
+				(unsigned long long)cand_res.new_val,
+				targ_res->poison ? "failure" : "success",
+				(unsigned long long)targ_res->new_val);
 			return -EINVAL;
 		}
 

src/relo_core.h

@@ -46,9 +46,9 @@ struct bpf_core_spec {
 
 struct bpf_core_relo_res {
 	/* expected value in the instruction, unless validate == false */
-	__u32 orig_val;
+	__u64 orig_val;
 	/* new value that needs to be patched up to */
-	__u32 new_val;
+	__u64 new_val;
 	/* relocation unsuccessful, poison instruction, but don't fail load */
 	bool poison;
 	/* some relocations can't be validated against orig_val */
@@ -68,6 +68,8 @@ struct bpf_core_relo_res {
 	__u32 new_type_id;
 };
 
+int __bpf_core_types_are_compat(const struct btf *local_btf, __u32 local_id,
+				const struct btf *targ_btf, __u32 targ_id, int level);
 int bpf_core_types_are_compat(const struct btf *local_btf, __u32 local_id,
 			      const struct btf *targ_btf, __u32 targ_id);
 

src/usdt.c

@@ -441,7 +441,7 @@ static int parse_elf_segs(Elf *elf, const char *path, struct elf_seg **segs, siz
 	return 0;
 }
 
-static int parse_lib_segs(int pid, const char *lib_path, struct elf_seg **segs, size_t *seg_cnt)
+static int parse_vma_segs(int pid, const char *lib_path, struct elf_seg **segs, size_t *seg_cnt)
 {
 	char path[PATH_MAX], line[PATH_MAX], mode[16];
 	size_t seg_start, seg_end, seg_off;
@@ -531,35 +531,40 @@ err_out:
 	return err;
 }
 
-static struct elf_seg *find_elf_seg(struct elf_seg *segs, size_t seg_cnt, long addr, bool relative)
+static struct elf_seg *find_elf_seg(struct elf_seg *segs, size_t seg_cnt, long virtaddr)
 {
 	struct elf_seg *seg;
 	int i;
 
-	if (relative) {
-		/* for shared libraries, address is relative offset and thus
-		 * should be fall within logical offset-based range of
-		 * [offset_start, offset_end)
-		 */
-		for (i = 0, seg = segs; i < seg_cnt; i++, seg++) {
-			if (seg->offset <= addr && addr < seg->offset + (seg->end - seg->start))
-				return seg;
-		}
-	} else {
-		/* for binaries, address is absolute and thus should be within
-		 * absolute address range of [seg_start, seg_end)
-		 */
-		for (i = 0, seg = segs; i < seg_cnt; i++, seg++) {
-			if (seg->start <= addr && addr < seg->end)
-				return seg;
-		}
+	/* for ELF binaries (both executables and shared libraries), we are
+	 * given virtual address (absolute for executables, relative for
+	 * libraries) which should match address range of [seg_start, seg_end)
+	 */
+	for (i = 0, seg = segs; i < seg_cnt; i++, seg++) {
+		if (seg->start <= virtaddr && virtaddr < seg->end)
+			return seg;
 	}
-
 	return NULL;
 }
 
-static int parse_usdt_note(Elf *elf, const char *path, long base_addr,
-			   GElf_Nhdr *nhdr, const char *data, size_t name_off, size_t desc_off,
+static struct elf_seg *find_vma_seg(struct elf_seg *segs, size_t seg_cnt, long offset)
+{
+	struct elf_seg *seg;
+	int i;
+
+	/* for VMA segments from /proc/<pid>/maps file, provided "address" is
+	 * actually a file offset, so should be fall within logical
+	 * offset-based range of [offset_start, offset_end)
+	 */
+	for (i = 0, seg = segs; i < seg_cnt; i++, seg++) {
+		if (seg->offset <= offset && offset < seg->offset + (seg->end - seg->start))
+			return seg;
+	}
+	return NULL;
+}
+
+static int parse_usdt_note(Elf *elf, const char *path, GElf_Nhdr *nhdr,
+			   const char *data, size_t name_off, size_t desc_off,
 			   struct usdt_note *usdt_note);
 
 static int parse_usdt_spec(struct usdt_spec *spec, const struct usdt_note *note, __u64 usdt_cookie);
@@ -568,8 +573,8 @@ static int collect_usdt_targets(struct usdt_manager *man, Elf *elf, const char *
 				const char *usdt_provider, const char *usdt_name, __u64 usdt_cookie,
 				struct usdt_target **out_targets, size_t *out_target_cnt)
 {
-	size_t off, name_off, desc_off, seg_cnt = 0, lib_seg_cnt = 0, target_cnt = 0;
-	struct elf_seg *segs = NULL, *lib_segs = NULL;
+	size_t off, name_off, desc_off, seg_cnt = 0, vma_seg_cnt = 0, target_cnt = 0;
+	struct elf_seg *segs = NULL, *vma_segs = NULL;
 	struct usdt_target *targets = NULL, *target;
 	long base_addr = 0;
 	Elf_Scn *notes_scn, *base_scn;
@@ -613,8 +618,7 @@ static int collect_usdt_targets(struct usdt_manager *man, Elf *elf, const char *
 		struct elf_seg *seg = NULL;
 		void *tmp;
 
-		err = parse_usdt_note(elf, path, base_addr, &nhdr,
-				      data->d_buf, name_off, desc_off, &note);
+		err = parse_usdt_note(elf, path, &nhdr, data->d_buf, name_off, desc_off, &note);
 		if (err)
 			goto err_out;
 
@@ -654,30 +658,29 @@ static int collect_usdt_targets(struct usdt_manager *man, Elf *elf, const char *
 			usdt_rel_ip += base_addr - note.base_addr;
 		}
 
-		if (ehdr.e_type == ET_EXEC) {
-			/* When attaching uprobes (which what USDTs basically
-			 * are) kernel expects a relative IP to be specified,
-			 * so if we are attaching to an executable ELF binary
-			 * (i.e., not a shared library), we need to calculate
-			 * proper relative IP based on ELF's load address
-			 */
-			seg = find_elf_seg(segs, seg_cnt, usdt_abs_ip, false /* relative */);
-			if (!seg) {
-				err = -ESRCH;
-				pr_warn("usdt: failed to find ELF program segment for '%s:%s' in '%s' at IP 0x%lx\n",
-					usdt_provider, usdt_name, path, usdt_abs_ip);
-				goto err_out;
-			}
-			if (!seg->is_exec) {
-				err = -ESRCH;
-				pr_warn("usdt: matched ELF binary '%s' segment [0x%lx, 0x%lx) for '%s:%s' at IP 0x%lx is not executable\n",
-					path, seg->start, seg->end, usdt_provider, usdt_name,
-					usdt_abs_ip);
-				goto err_out;
-			}
+		/* When attaching uprobes (which is what USDTs basically are)
+		 * kernel expects file offset to be specified, not a relative
+		 * virtual address, so we need to translate virtual address to
+		 * file offset, for both ET_EXEC and ET_DYN binaries.
+		 */
+		seg = find_elf_seg(segs, seg_cnt, usdt_abs_ip);
+		if (!seg) {
+			err = -ESRCH;
+			pr_warn("usdt: failed to find ELF program segment for '%s:%s' in '%s' at IP 0x%lx\n",
+				usdt_provider, usdt_name, path, usdt_abs_ip);
+			goto err_out;
+		}
+		if (!seg->is_exec) {
+			err = -ESRCH;
+			pr_warn("usdt: matched ELF binary '%s' segment [0x%lx, 0x%lx) for '%s:%s' at IP 0x%lx is not executable\n",
+				path, seg->start, seg->end, usdt_provider, usdt_name,
+				usdt_abs_ip);
+			goto err_out;
+		}
+		/* translate from virtual address to file offset */
+		usdt_rel_ip = usdt_abs_ip - seg->start + seg->offset;
 
-			usdt_rel_ip = usdt_abs_ip - (seg->start - seg->offset);
-		} else if (!man->has_bpf_cookie) { /* ehdr.e_type == ET_DYN */
+		if (ehdr.e_type == ET_DYN && !man->has_bpf_cookie) {
 			/* If we don't have BPF cookie support but need to
 			 * attach to a shared library, we'll need to know and
 			 * record absolute addresses of attach points due to
@@ -697,9 +700,9 @@ static int collect_usdt_targets(struct usdt_manager *man, Elf *elf, const char *
 				goto err_out;
 			}
 
-			/* lib_segs are lazily initialized only if necessary */
-			if (lib_seg_cnt == 0) {
-				err = parse_lib_segs(pid, path, &lib_segs, &lib_seg_cnt);
+			/* vma_segs are lazily initialized only if necessary */
+			if (vma_seg_cnt == 0) {
+				err = parse_vma_segs(pid, path, &vma_segs, &vma_seg_cnt);
 				if (err) {
 					pr_warn("usdt: failed to get memory segments in PID %d for shared library '%s': %d\n",
 						pid, path, err);
@@ -707,7 +710,7 @@ static int collect_usdt_targets(struct usdt_manager *man, Elf *elf, const char *
 				}
 			}
 
-			seg = find_elf_seg(lib_segs, lib_seg_cnt, usdt_rel_ip, true /* relative */);
+			seg = find_vma_seg(vma_segs, vma_seg_cnt, usdt_rel_ip);
 			if (!seg) {
 				err = -ESRCH;
 				pr_warn("usdt: failed to find shared lib memory segment for '%s:%s' in '%s' at relative IP 0x%lx\n",
@@ -715,7 +718,7 @@ static int collect_usdt_targets(struct usdt_manager *man, Elf *elf, const char *
 				goto err_out;
 			}
 
-			usdt_abs_ip = seg->start + (usdt_rel_ip - seg->offset);
+			usdt_abs_ip = seg->start - seg->offset + usdt_rel_ip;
 		}
 
 		pr_debug("usdt: probe for '%s:%s' in %s '%s': addr 0x%lx base 0x%lx (resolved abs_ip 0x%lx rel_ip 0x%lx) args '%s' in segment [0x%lx, 0x%lx) at offset 0x%lx\n",
@@ -723,7 +726,7 @@ static int collect_usdt_targets(struct usdt_manager *man, Elf *elf, const char *
 			 note.loc_addr, note.base_addr, usdt_abs_ip, usdt_rel_ip, note.args,
 			 seg ? seg->start : 0, seg ? seg->end : 0, seg ? seg->offset : 0);
 
-		/* Adjust semaphore address to be a relative offset */
+		/* Adjust semaphore address to be a file offset */
 		if (note.sema_addr) {
 			if (!man->has_sema_refcnt) {
 				pr_warn("usdt: kernel doesn't support USDT semaphore refcounting for '%s:%s' in '%s'\n",
@@ -732,7 +735,7 @@ static int collect_usdt_targets(struct usdt_manager *man, Elf *elf, const char *
 				goto err_out;
 			}
 
-			seg = find_elf_seg(segs, seg_cnt, note.sema_addr, false /* relative */);
+			seg = find_elf_seg(segs, seg_cnt, note.sema_addr);
 			if (!seg) {
 				err = -ESRCH;
 				pr_warn("usdt: failed to find ELF loadable segment with semaphore of '%s:%s' in '%s' at 0x%lx\n",
@@ -747,7 +750,7 @@ static int collect_usdt_targets(struct usdt_manager *man, Elf *elf, const char *
 				goto err_out;
 			}
 
-			usdt_sema_off = note.sema_addr - (seg->start - seg->offset);
+			usdt_sema_off = note.sema_addr - seg->start + seg->offset;
 
 			pr_debug("usdt: sema  for '%s:%s' in %s '%s': addr 0x%lx base 0x%lx (resolved 0x%lx) in segment [0x%lx, 0x%lx] at offset 0x%lx\n",
 				 usdt_provider, usdt_name, ehdr.e_type == ET_EXEC ? "exec" : "lib ",
@@ -770,7 +773,7 @@ static int collect_usdt_targets(struct usdt_manager *man, Elf *elf, const char *
 		target->rel_ip = usdt_rel_ip;
 		target->sema_off = usdt_sema_off;
 
-		/* notes->args references strings from Elf itself, so they can
+		/* notes.args references strings from Elf itself, so they can
 		 * be referenced safely until elf_end() call
 		 */
 		target->spec_str = note.args;
@@ -788,7 +791,7 @@ static int collect_usdt_targets(struct usdt_manager *man, Elf *elf, const char *
 
 err_out:
 	free(segs);
-	free(lib_segs);
+	free(vma_segs);
 	if (err < 0)
 		free(targets);
 	return err;
@@ -1089,8 +1092,8 @@ err_out:
 /* Parse out USDT ELF note from '.note.stapsdt' section.
  * Logic inspired by perf's code.
  */
-static int parse_usdt_note(Elf *elf, const char *path, long base_addr,
-			   GElf_Nhdr *nhdr, const char *data, size_t name_off, size_t desc_off,
+static int parse_usdt_note(Elf *elf, const char *path, GElf_Nhdr *nhdr,
+			   const char *data, size_t name_off, size_t desc_off,
 			   struct usdt_note *note)
 {
 	const char *provider, *name, *args;

src/xsk.h

@@ -1,336 +0,0 @@
-/* SPDX-License-Identifier: (LGPL-2.1 OR BSD-2-Clause) */
-
-/*
- * AF_XDP user-space access library.
- *
- * Copyright (c) 2018 - 2019 Intel Corporation.
- * Copyright (c) 2019 Facebook
- *
- * Author(s): Magnus Karlsson <magnus.karlsson@intel.com>
- */
-
-#ifndef __LIBBPF_XSK_H
-#define __LIBBPF_XSK_H
-
-#include <stdio.h>
-#include <stdint.h>
-#include <stdbool.h>
-#include <linux/if_xdp.h>
-
-#include "libbpf.h"
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-/* This whole API has been deprecated and moved to libxdp that can be found at
- * https://github.com/xdp-project/xdp-tools. The APIs are exactly the same so
- * it should just be linking with libxdp instead of libbpf for this set of
- * functionality. If not, please submit a bug report on the aforementioned page.
- */
-
-/* Load-Acquire Store-Release barriers used by the XDP socket
- * library. The following macros should *NOT* be considered part of
- * the xsk.h API, and is subject to change anytime.
- *
- * LIBRARY INTERNAL
- */
-
-#define __XSK_READ_ONCE(x) (*(volatile typeof(x) *)&x)
-#define __XSK_WRITE_ONCE(x, v) (*(volatile typeof(x) *)&x) = (v)
-
-#if defined(__i386__) || defined(__x86_64__)
-# define libbpf_smp_store_release(p, v)					\
-	do {								\
-		asm volatile("" : : : "memory");			\
-		__XSK_WRITE_ONCE(*p, v);				\
-	} while (0)
-# define libbpf_smp_load_acquire(p)					\
-	({								\
-		typeof(*p) ___p1 = __XSK_READ_ONCE(*p);			\
-		asm volatile("" : : : "memory");			\
-		___p1;							\
-	})
-#elif defined(__aarch64__)
-# define libbpf_smp_store_release(p, v)					\
-		asm volatile ("stlr %w1, %0" : "=Q" (*p) : "r" (v) : "memory")
-# define libbpf_smp_load_acquire(p)					\
-	({								\
-		typeof(*p) ___p1;					\
-		asm volatile ("ldar %w0, %1"				\
-			      : "=r" (___p1) : "Q" (*p) : "memory");	\
-		___p1;							\
-	})
-#elif defined(__riscv)
-# define libbpf_smp_store_release(p, v)					\
-	do {								\
-		asm volatile ("fence rw,w" : : : "memory");		\
-		__XSK_WRITE_ONCE(*p, v);				\
-	} while (0)
-# define libbpf_smp_load_acquire(p)					\
-	({								\
-		typeof(*p) ___p1 = __XSK_READ_ONCE(*p);			\
-		asm volatile ("fence r,rw" : : : "memory");		\
-		___p1;							\
-	})
-#endif
-
-#ifndef libbpf_smp_store_release
-#define libbpf_smp_store_release(p, v)					\
-	do {								\
-		__sync_synchronize();					\
-		__XSK_WRITE_ONCE(*p, v);				\
-	} while (0)
-#endif
-
-#ifndef libbpf_smp_load_acquire
-#define libbpf_smp_load_acquire(p)					\
-	({								\
-		typeof(*p) ___p1 = __XSK_READ_ONCE(*p);			\
-		__sync_synchronize();					\
-		___p1;							\
-	})
-#endif
-
-/* LIBRARY INTERNAL -- END */
-
-/* Do not access these members directly. Use the functions below. */
-#define DEFINE_XSK_RING(name) \
-struct name { \
-	__u32 cached_prod; \
-	__u32 cached_cons; \
-	__u32 mask; \
-	__u32 size; \
-	__u32 *producer; \
-	__u32 *consumer; \
-	void *ring; \
-	__u32 *flags; \
-}
-
-DEFINE_XSK_RING(xsk_ring_prod);
-DEFINE_XSK_RING(xsk_ring_cons);
-
-/* For a detailed explanation on the memory barriers associated with the
- * ring, please take a look at net/xdp/xsk_queue.h.
- */
-
-struct xsk_umem;
-struct xsk_socket;
-
-static inline __u64 *xsk_ring_prod__fill_addr(struct xsk_ring_prod *fill,
-					      __u32 idx)
-{
-	__u64 *addrs = (__u64 *)fill->ring;
-
-	return &addrs[idx & fill->mask];
-}
-
-static inline const __u64 *
-xsk_ring_cons__comp_addr(const struct xsk_ring_cons *comp, __u32 idx)
-{
-	const __u64 *addrs = (const __u64 *)comp->ring;
-
-	return &addrs[idx & comp->mask];
-}
-
-static inline struct xdp_desc *xsk_ring_prod__tx_desc(struct xsk_ring_prod *tx,
-						      __u32 idx)
-{
-	struct xdp_desc *descs = (struct xdp_desc *)tx->ring;
-
-	return &descs[idx & tx->mask];
-}
-
-static inline const struct xdp_desc *
-xsk_ring_cons__rx_desc(const struct xsk_ring_cons *rx, __u32 idx)
-{
-	const struct xdp_desc *descs = (const struct xdp_desc *)rx->ring;
-
-	return &descs[idx & rx->mask];
-}
-
-static inline int xsk_ring_prod__needs_wakeup(const struct xsk_ring_prod *r)
-{
-	return *r->flags & XDP_RING_NEED_WAKEUP;
-}
-
-static inline __u32 xsk_prod_nb_free(struct xsk_ring_prod *r, __u32 nb)
-{
-	__u32 free_entries = r->cached_cons - r->cached_prod;
-
-	if (free_entries >= nb)
-		return free_entries;
-
-	/* Refresh the local tail pointer.
-	 * cached_cons is r->size bigger than the real consumer pointer so
-	 * that this addition can be avoided in the more frequently
-	 * executed code that computs free_entries in the beginning of
-	 * this function. Without this optimization it whould have been
-	 * free_entries = r->cached_prod - r->cached_cons + r->size.
-	 */
-	r->cached_cons = libbpf_smp_load_acquire(r->consumer);
-	r->cached_cons += r->size;
-
-	return r->cached_cons - r->cached_prod;
-}
-
-static inline __u32 xsk_cons_nb_avail(struct xsk_ring_cons *r, __u32 nb)
-{
-	__u32 entries = r->cached_prod - r->cached_cons;
-
-	if (entries == 0) {
-		r->cached_prod = libbpf_smp_load_acquire(r->producer);
-		entries = r->cached_prod - r->cached_cons;
-	}
-
-	return (entries > nb) ? nb : entries;
-}
-
-static inline __u32 xsk_ring_prod__reserve(struct xsk_ring_prod *prod, __u32 nb, __u32 *idx)
-{
-	if (xsk_prod_nb_free(prod, nb) < nb)
-		return 0;
-
-	*idx = prod->cached_prod;
-	prod->cached_prod += nb;
-
-	return nb;
-}
-
-static inline void xsk_ring_prod__submit(struct xsk_ring_prod *prod, __u32 nb)
-{
-	/* Make sure everything has been written to the ring before indicating
-	 * this to the kernel by writing the producer pointer.
-	 */
-	libbpf_smp_store_release(prod->producer, *prod->producer + nb);
-}
-
-static inline __u32 xsk_ring_cons__peek(struct xsk_ring_cons *cons, __u32 nb, __u32 *idx)
-{
-	__u32 entries = xsk_cons_nb_avail(cons, nb);
-
-	if (entries > 0) {
-		*idx = cons->cached_cons;
-		cons->cached_cons += entries;
-	}
-
-	return entries;
-}
-
-static inline void xsk_ring_cons__cancel(struct xsk_ring_cons *cons, __u32 nb)
-{
-	cons->cached_cons -= nb;
-}
-
-static inline void xsk_ring_cons__release(struct xsk_ring_cons *cons, __u32 nb)
-{
-	/* Make sure data has been read before indicating we are done
-	 * with the entries by updating the consumer pointer.
-	 */
-	libbpf_smp_store_release(cons->consumer, *cons->consumer + nb);
-
-}
-
-static inline void *xsk_umem__get_data(void *umem_area, __u64 addr)
-{
-	return &((char *)umem_area)[addr];
-}
-
-static inline __u64 xsk_umem__extract_addr(__u64 addr)
-{
-	return addr & XSK_UNALIGNED_BUF_ADDR_MASK;
-}
-
-static inline __u64 xsk_umem__extract_offset(__u64 addr)
-{
-	return addr >> XSK_UNALIGNED_BUF_OFFSET_SHIFT;
-}
-
-static inline __u64 xsk_umem__add_offset_to_addr(__u64 addr)
-{
-	return xsk_umem__extract_addr(addr) + xsk_umem__extract_offset(addr);
-}
-
-LIBBPF_API LIBBPF_DEPRECATED_SINCE(0, 7, "AF_XDP support deprecated and moved to libxdp")
-int xsk_umem__fd(const struct xsk_umem *umem);
-LIBBPF_API LIBBPF_DEPRECATED_SINCE(0, 7, "AF_XDP support deprecated and moved to libxdp")
-int xsk_socket__fd(const struct xsk_socket *xsk);
-
-#define XSK_RING_CONS__DEFAULT_NUM_DESCS      2048
-#define XSK_RING_PROD__DEFAULT_NUM_DESCS      2048
-#define XSK_UMEM__DEFAULT_FRAME_SHIFT    12 /* 4096 bytes */
-#define XSK_UMEM__DEFAULT_FRAME_SIZE     (1 << XSK_UMEM__DEFAULT_FRAME_SHIFT)
-#define XSK_UMEM__DEFAULT_FRAME_HEADROOM 0
-#define XSK_UMEM__DEFAULT_FLAGS 0
-
-struct xsk_umem_config {
-	__u32 fill_size;
-	__u32 comp_size;
-	__u32 frame_size;
-	__u32 frame_headroom;
-	__u32 flags;
-};
-
-LIBBPF_API LIBBPF_DEPRECATED_SINCE(0, 7, "AF_XDP support deprecated and moved to libxdp")
-int xsk_setup_xdp_prog(int ifindex, int *xsks_map_fd);
-LIBBPF_API LIBBPF_DEPRECATED_SINCE(0, 7, "AF_XDP support deprecated and moved to libxdp")
-int xsk_socket__update_xskmap(struct xsk_socket *xsk, int xsks_map_fd);
-
-/* Flags for the libbpf_flags field. */
-#define XSK_LIBBPF_FLAGS__INHIBIT_PROG_LOAD (1 << 0)
-
-struct xsk_socket_config {
-	__u32 rx_size;
-	__u32 tx_size;
-	__u32 libbpf_flags;
-	__u32 xdp_flags;
-	__u16 bind_flags;
-};
-
-/* Set config to NULL to get the default configuration. */
-LIBBPF_API LIBBPF_DEPRECATED_SINCE(0, 7, "AF_XDP support deprecated and moved to libxdp")
-int xsk_umem__create(struct xsk_umem **umem,
-		     void *umem_area, __u64 size,
-		     struct xsk_ring_prod *fill,
-		     struct xsk_ring_cons *comp,
-		     const struct xsk_umem_config *config);
-LIBBPF_API LIBBPF_DEPRECATED_SINCE(0, 7, "AF_XDP support deprecated and moved to libxdp")
-int xsk_umem__create_v0_0_2(struct xsk_umem **umem,
-			    void *umem_area, __u64 size,
-			    struct xsk_ring_prod *fill,
-			    struct xsk_ring_cons *comp,
-			    const struct xsk_umem_config *config);
-LIBBPF_API LIBBPF_DEPRECATED_SINCE(0, 7, "AF_XDP support deprecated and moved to libxdp")
-int xsk_umem__create_v0_0_4(struct xsk_umem **umem,
-			    void *umem_area, __u64 size,
-			    struct xsk_ring_prod *fill,
-			    struct xsk_ring_cons *comp,
-			    const struct xsk_umem_config *config);
-LIBBPF_API LIBBPF_DEPRECATED_SINCE(0, 7, "AF_XDP support deprecated and moved to libxdp")
-int xsk_socket__create(struct xsk_socket **xsk,
-		       const char *ifname, __u32 queue_id,
-		       struct xsk_umem *umem,
-		       struct xsk_ring_cons *rx,
-		       struct xsk_ring_prod *tx,
-		       const struct xsk_socket_config *config);
-LIBBPF_API LIBBPF_DEPRECATED_SINCE(0, 7, "AF_XDP support deprecated and moved to libxdp")
-int xsk_socket__create_shared(struct xsk_socket **xsk_ptr,
-			      const char *ifname,
-			      __u32 queue_id, struct xsk_umem *umem,
-			      struct xsk_ring_cons *rx,
-			      struct xsk_ring_prod *tx,
-			      struct xsk_ring_prod *fill,
-			      struct xsk_ring_cons *comp,
-			      const struct xsk_socket_config *config);
-
-/* Returns 0 for success and -EBUSY if the umem is still in use. */
-LIBBPF_API LIBBPF_DEPRECATED_SINCE(0, 7, "AF_XDP support deprecated and moved to libxdp")
-int xsk_umem__delete(struct xsk_umem *umem);
-LIBBPF_API LIBBPF_DEPRECATED_SINCE(0, 7, "AF_XDP support deprecated and moved to libxdp")
-void xsk_socket__delete(struct xsk_socket *xsk);
-
-#ifdef __cplusplus
-} /* extern "C" */
-#endif
-
-#endif /* __LIBBPF_XSK_H */

travis-ci/managers/debian.sh

@@ -7,7 +7,8 @@ ENV_VARS="${ENV_VARS:-}"
 DOCKER_RUN="${DOCKER_RUN:-docker run}"
 REPO_ROOT="${REPO_ROOT:-$PWD}"
 ADDITIONAL_DEPS=(clang pkg-config gcc-10)
-CFLAGS="-g -O2 -Werror -Wall"
+EXTRA_CFLAGS=""
+EXTRA_LDFLAGS=""
 
 function info() {
     echo -e "\033[33;1m$1\033[0m"
@@ -55,17 +56,17 @@ for phase in "${PHASES[@]}"; do
             elif [[ "$phase" = *"GCC10"* ]]; then
                 ENV_VARS="-e CC=gcc-10 -e CXX=g++-10"
                 CC="gcc-10"
-                CFLAGS="${CFLAGS} -Wno-stringop-truncation"
             else
-                CFLAGS="${CFLAGS} -Wno-stringop-truncation"
+                EXTRA_CFLAGS="${EXTRA_CFLAGS} -Wno-stringop-truncation"
             fi
             if [[ "$phase" = *"ASAN"* ]]; then
-                CFLAGS="${CFLAGS} -fsanitize=address,undefined"
+                EXTRA_CFLAGS="${EXTRA_CFLAGS} -fsanitize=address,undefined"
+                EXTRA_LDFLAGS="${EXTRA_LDFLAGS} -fsanitize=address,undefined"
             fi
             docker_exec mkdir build install
             docker_exec ${CC} --version
             info "build"
-            docker_exec make -j$((4*$(nproc))) CFLAGS="${CFLAGS}" -C ./src -B OBJDIR=../build
+	    docker_exec make -j$((4*$(nproc))) EXTRA_CFLAGS="${EXTRA_CFLAGS}" EXTRA_LDFLAGS="${EXTRA_LDFLAGS}" -C ./src -B OBJDIR=../build
             info "ldd build/libbpf.so:"
             docker_exec ldd build/libbpf.so
             if ! docker_exec ldd build/libbpf.so | grep -q libelf; then
@@ -75,7 +76,7 @@ for phase in "${PHASES[@]}"; do
             info "install"
             docker_exec make -j$((4*$(nproc))) -C src OBJDIR=../build DESTDIR=../install install
             info "link binary"
-            docker_exec bash -c "CFLAGS=\"${CFLAGS}\" ./travis-ci/managers/test_compile.sh"
+            docker_exec bash -c "EXTRA_CFLAGS=\"${EXTRA_CFLAGS}\" EXTRA_LDFLAGS=\"${EXTRA_LDFLAGS}\" ./travis-ci/managers/test_compile.sh"
             ;;
         CLEANUP)
             info "Cleanup phase"

travis-ci/managers/test_compile.sh

@@ -1,7 +1,8 @@
 #!/bin/bash
 set -euox pipefail
 
-CFLAGS=${CFLAGS:-}
+EXTRA_CFLAGS=${EXTRA_CFLAGS:-}
+EXTRA_LDFLAGS=${EXTRA_LDFLAGS:-}
 
 cat << EOF > main.c
 #include <bpf/libbpf.h>
@@ -11,4 +12,4 @@ int main() {
 EOF
 
 # static linking
-${CC:-cc} ${CFLAGS} -o main -I./install/usr/include main.c ./build/libbpf.a -lelf -lz
+${CC:-cc} ${EXTRA_CFLAGS} ${EXTRA_LDFLAGS} -o main -I./include/uapi -I./install/usr/include main.c ./build/libbpf.a -lelf -lz

travis-ci/managers/ubuntu.sh

@@ -10,14 +10,15 @@ source "$(dirname $0)/travis_wait.bash"
 
 cd $REPO_ROOT
 
-CFLAGS="-g -O2 -Werror -Wall -fsanitize=address,undefined -Wno-stringop-truncation"
+EXTRA_CFLAGS="-Werror -Wall -fsanitize=address,undefined"
+EXTRA_LDFLAGS="-Werror -Wall -fsanitize=address,undefined"
 mkdir build install
 cc --version
-make -j$((4*$(nproc))) CFLAGS="${CFLAGS}" -C ./src -B OBJDIR=../build
+make -j$((4*$(nproc))) EXTRA_CFLAGS="${EXTRA_CFLAGS}" EXTRA_LDFLAGS="${EXTRA_LDFLAGS}" -C ./src -B OBJDIR=../build
 ldd build/libbpf.so
 if ! ldd build/libbpf.so | grep -q libelf; then
     echo "FAIL: No reference to libelf.so in libbpf.so!"
     exit 1
 fi
 make -j$((4*$(nproc))) -C src OBJDIR=../build DESTDIR=../install install
-CFLAGS=${CFLAGS} $(dirname $0)/test_compile.sh
+EXTRA_CFLAGS=${EXTRA_CFLAGS} EXTRA_LDFLAGS=${EXTRA_LDFLAGS} $(dirname $0)/test_compile.sh

travis-ci/rootfs/mkrootfs_debian.sh

@@ -20,7 +20,19 @@ root=$(mktemp -d -p "$PWD")
 trap 'rm -r "$root"' EXIT
 
 # Install packages.
-packages=binutils,busybox,elfutils,ethtool,iproute2,libcap2,libelf1,strace,zlib1g
+packages=(
+	binutils
+	busybox
+	elfutils
+	ethtool
+	iproute2
+	iptables
+	libcap2
+	libelf1
+	strace
+	zlib1g
+)
+packages=$(IFS=, && echo "${packages[*]}")
 debootstrap --include="$packages" --variant=minbase "$@" bookworm "$root"
 
 # Remove the init scripts (tests use their own). Also remove various
@@ -31,11 +43,6 @@ rm -rf \
 	"$root"/var/cache/apt/archives/* \
 	"$root"/var/lib/apt/lists/*
 
-# Save some more space by removing coreutils - the tests use busybox. Before
-# doing that, delete the buggy postrm script, which uses the rm command.
-rm -f "$root/var/lib/dpkg/info/coreutils.postrm"
-chroot "$root" dpkg --remove --force-remove-essential coreutils
-
 # Apply common tweaks.
 "$(dirname "$0")"/mkrootfs_tweak.sh "$root"
 

travis-ci/vmtest/configs/blacklist/BLACKLIST-latest

@@ -3,3 +3,4 @@ get_stack_raw_tp    # spams with kernel warnings until next bpf -> bpf-next merg
 stacktrace_build_id_nmi
 stacktrace_build_id
 task_fd_query_rawtp
+varlen

travis-ci/vmtest/configs/blacklist/BLACKLIST-latest.s390x

@@ -25,6 +25,7 @@ ksyms_module_libbpf                      # JIT does not support calling kernel f
 ksyms_module_lskel                       # test_ksyms_module_lskel__open_and_load unexpected error: -9                 (?)
 modify_return                            # modify_return attach failed: -524                                           (trampoline)
 module_attach                            # skel_attach skeleton attach failed: -524                                    (trampoline)
+mptcp
 kprobe_multi_test                        # relies on fentry
 netcnt                                   # failed to load BPF skeleton 'netcnt_prog': -7                               (?)
 probe_user                               # check_kprobe_res wrong kprobe res from probe read                           (?)
@@ -62,3 +63,5 @@ bpf_cookie                               # failed to open_and_load program: -524
 xdp_do_redirect                          # prog_run_max_size unexpected error: -22 (errno 22)
 send_signal                              # intermittently fails to receive signal
 select_reuseport                         # intermittently fails on new s390x setup
+xdp_synproxy                             # JIT does not support calling kernel function                                (kfunc)
+unpriv_bpf_disabled                      # fentry

travis-ci/vmtest/configs/config-latest.s390x

@@ -493,7 +493,7 @@ CONFIG_MODULE_UNLOAD=y
 # CONFIG_MODULE_FORCE_UNLOAD is not set
 # CONFIG_MODVERSIONS is not set
 # CONFIG_MODULE_SRCVERSION_ALL is not set
-# CONFIG_MODULE_SIG is not set
+CONFIG_MODULE_SIG=y
 CONFIG_MODULE_COMPRESS_NONE=y
 # CONFIG_MODULE_COMPRESS_GZIP is not set
 # CONFIG_MODULE_COMPRESS_XZ is not set
@@ -764,7 +764,8 @@ CONFIG_IPV6_SEG6_BPF=y
 # CONFIG_IPV6_RPL_LWTUNNEL is not set
 # CONFIG_IPV6_IOAM6_LWTUNNEL is not set
 # CONFIG_NETLABEL is not set
-# CONFIG_MPTCP is not set
+CONFIG_MPTCP=y
+CONFIG_MPTCP_IPV6=y
 # CONFIG_NETWORK_SECMARK is not set
 # CONFIG_NETWORK_PHY_TIMESTAMPING is not set
 CONFIG_NETFILTER=y

travis-ci/vmtest/configs/config-latest.x86_64

@@ -721,7 +721,7 @@ CONFIG_MODULE_UNLOAD=y
 CONFIG_MODVERSIONS=y
 CONFIG_ASM_MODVERSIONS=y
 CONFIG_MODULE_SRCVERSION_ALL=y
-# CONFIG_MODULE_SIG is not set
+CONFIG_MODULE_SIG=y
 # CONFIG_MODULE_COMPRESS is not set
 # CONFIG_MODULE_ALLOW_MISSING_NAMESPACE_IMPORTS is not set
 # CONFIG_UNUSED_SYMBOLS is not set
@@ -961,7 +961,8 @@ CONFIG_IPV6_SEG6_LWTUNNEL=y
 CONFIG_IPV6_SEG6_BPF=y
 # CONFIG_IPV6_RPL_LWTUNNEL is not set
 CONFIG_NETLABEL=y
-# CONFIG_MPTCP is not set
+CONFIG_MPTCP=y
+CONFIG_MPTCP_IPV6=y
 CONFIG_NETWORK_SECMARK=y
 CONFIG_NET_PTP_CLASSIFY=y
 # CONFIG_NETWORK_PHY_TIMESTAMPING is not set
@@ -1215,7 +1216,7 @@ CONFIG_MPLS=y
 # CONFIG_NET_NSH is not set
 # CONFIG_HSR is not set
 # CONFIG_NET_SWITCHDEV is not set
-# CONFIG_NET_L3_MASTER_DEV is not set
+CONFIG_NET_L3_MASTER_DEV=y
 # CONFIG_QRTR is not set
 # CONFIG_NET_NCSI is not set
 CONFIG_RPS=y
@@ -1513,6 +1514,7 @@ CONFIG_TUN=y
 CONFIG_VETH=y
 CONFIG_VIRTIO_NET=y
 # CONFIG_NLMON is not set
+CONFIG_NET_VRF=y
 # CONFIG_ARCNET is not set
 
 #
@@ -2793,11 +2795,11 @@ CONFIG_DEBUG_BUGVERBOSE=y
 # Compile-time checks and compiler options
 #
 CONFIG_DEBUG_INFO=y
-CONFIG_DEBUG_INFO_DWARF_TOOLCHAIN_DEFAULT=y
 # CONFIG_DEBUG_INFO_REDUCED is not set
 # CONFIG_DEBUG_INFO_COMPRESSED is not set
 # CONFIG_DEBUG_INFO_SPLIT is not set
 # CONFIG_DEBUG_INFO_DWARF4 is not set
+CONFIG_DEBUG_INFO_DWARF_TOOLCHAIN_DEFAULT=y
 CONFIG_DEBUG_INFO_BTF=y
 # CONFIG_GDB_SCRIPTS is not set
 CONFIG_ENABLE_MUST_CHECK=y

travis-ci/vmtest/configs/whitelist/WHITELIST-5.5.0

@@ -1,4 +1,4 @@
-attach_probe
+# attach_probe
 autoload
 bpf_verif_scale
 cgroup_attach_autodetach
@@ -10,7 +10,6 @@ core_reloc
 core_retro
 cpu_mask
 endian
-fexit_stress
 get_branch_snapshot
 get_stackid_cannot_attach
 global_data