Add fallback to an old attaching method

Skip probing for loading
Skip kernel version check
2026-03-14 13:29:06 +08:00 · 2020-07-30 13:38:27 +03:00 · 2020-07-30 13:37:26 +03:00 · 2020-07-30 13:35:35 +03:00
53 changed files with 2587 additions and 89739 deletions
--- a/.travis.yml
+++ b/.travis.yml
@@ -35,23 +35,8 @@ stages:

 jobs:
    include:
-        - stage: Builds & Tests
-          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: Kernel 5.5.0 + selftests
-          language: bash
-          env: KERNEL=5.5.0
-          script:  $CI_ROOT/vmtest/run_vmtest.sh || travis_terminate 1
-
-        - name: Debian Build
+        - stage: Build & Test
+          name: Debian Build
          language: bash
          install:        $CI_ROOT/managers/debian.sh SETUP
          script:         $CI_ROOT/managers/debian.sh RUN || travis_terminate 1
@@ -106,6 +91,16 @@ jobs:
          language: bash
          script: sudo $CI_ROOT/managers/ubuntu.sh || travis_terminate 1

+        - 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
+
        - stage: Coverity
          language: bash
          env:
@@ -126,5 +121,3 @@ jobs:
              - sudo apt-get install -y libelf-dev pkg-config
          script:
              - scripts/coverity.sh || travis_terminate 1
-    allow_failures:
-        - env: KERNEL=x.x.x
--- a/2
+++ b/2
@@ -1 +1 @@
-c66dca98a24cb5f3493dd08d40bcfa94a220fa92
+4e15507fea70c0c312d79610efa46b6853ccf8e0
--- a/2
+++ b/2
@@ -1 +1 @@
-3cb12d27ff655e57e8efe3486dca2a22f4e30578
+69119673bd50b176ded34032fadd41530fb5af21
--- a/README.md
+++ b/README.md
@@ -1,32 +1,23 @@
-This is a mirror of [bpf-next Linux source
-tree](https://kernel.googlesource.com/pub/scm/linux/kernel/git/bpf/bpf-next)'s
+
+This is a mirror of [bpf-next linux tree](https://kernel.googlesource.com/pub/scm/linux/kernel/git/bpf/bpf-next)'s
 `tools/lib/bpf` directory plus its supporting header files.

-All the gory details of syncing can be found in `scripts/sync-kernel.sh`
-script.
+The following files will by sync'ed with bpf-next repo:
+  - `src/` <-> `bpf-next/tools/lib/bpf/`
+  - `include/uapi/linux/bpf_common.h` <-> `bpf-next/tools/include/uapi/linux/bpf_common.h`
+  - `include/uapi/linux/bpf.h` <-> `bpf-next/tools/include/uapi/linux/bpf.h`
+  - `include/uapi/linux/btf.h` <-> `bpf-next/tools/include/uapi/linux/btf.h`
+  - `include/uapi/linux/if_link.h` <-> `bpf-next/tools/include/uapi/linux/if_link.h`
+  - `include/uapi/linux/if_xdp.h` <-> `bpf-next/tools/include/uapi/linux/if_xdp.h`
+  - `include/uapi/linux/netlink.h` <-> `bpf-next/tools/include/uapi/linux/netlink.h`
+  - `include/tools/libc_compat.h` <-> `bpf-next/tools/include/tools/libc_compat.h`

-Some header files in this repo (`include/linux/*.h`) are reduced versions of
-their counterpart files at
-[bpf-next](https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next.git/)'s
-`tools/include/linux/*.h` to make compilation successful.
-
-BPF questions
-=============
-
-All general BPF questions, including kernel functionality, libbpf APIs and
-their application, should be sent to bpf@vger.kernel.org mailing list. You can
-subscribe to it [here](http://vger.kernel.org/vger-lists.html#bpf) and search
-its archive [here](https://lore.kernel.org/bpf/). Please search the archive
-before asking new questions. It very well might be that this was already
-addressed or answered before.
-
-bpf@vger.kernel.org is monitored by many more people and they will happily try
-to help you with whatever issue you have. This repository's PRs and issues
-should be opened only for dealing with issues pertaining to specific way this
-libbpf mirror repo is set up and organized.
+Other header files at this repo (`include/linux/*.h`) are reduced versions of
+their counterpart files at bpf-next's `tools/include/linux/*.h` to make compilation
+successful.

 Build
-[![Build Status](https://travis-ci.com/libbpf/libbpf.svg?branch=master)](https://travis-ci.com/github/libbpf/libbpf)
+[![Build Status](https://travis-ci.org/libbpf/libbpf.svg?branch=master)](https://travis-ci.org/libbpf/libbpf)
 [![Total alerts](https://img.shields.io/lgtm/alerts/g/libbpf/libbpf.svg?logo=lgtm&logoWidth=18)](https://lgtm.com/projects/g/libbpf/libbpf/alerts/)
 [![Coverity](https://img.shields.io/coverity/scan/18195.svg)](https://scan.coverity.com/projects/libbpf)
 =====
@@ -34,9 +25,8 @@ libelf is an internal dependency of libbpf and thus it is required to link
 against and must be installed on the system for applications to work.
 pkg-config is used by default to find libelf, and the program called can be
 overridden with `PKG_CONFIG`.
-
-If using `pkg-config` at build time is not desired, it can be disabled by
-setting `NO_PKG_CONFIG=1` when calling make.
+If using `pkg-config` at build time is not desired, it can be disabled by setting
+`NO_PKG_CONFIG=1` when calling make.

 To build both static libbpf.a and shared libbpf.so:
 ```bash
@@ -68,21 +58,17 @@ Distributions packaging libbpf from this mirror:
  - [Fedora](https://src.fedoraproject.org/rpms/libbpf)
  - [Gentoo](https://packages.gentoo.org/packages/dev-libs/libbpf)
  - [Debian](https://packages.debian.org/sid/libbpf-dev)
-  - [Arch](https://www.archlinux.org/packages/extra/x86_64/libbpf/)
-  - [Ubuntu](https://packages.ubuntu.com/source/groovy/libbpf)

 Benefits of packaging from the mirror over packaging from kernel sources:
  - Consistent versioning across distributions.
  - No ties to any specific kernel, transparent handling of older kernels.
-    Libbpf is designed to be kernel-agnostic and work across multitude of
-    kernel versions. It has built-in mechanisms to gracefully handle older
-    kernels, that are missing some of the features, by working around or
-    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).
-  - Static code analysis via [LGTM](https://lgtm.com/projects/g/libbpf/libbpf)
-    and [Coverity](https://scan.coverity.com/projects/libbpf).
+    Libbpf is designed to be kernel-agnostic and work across multitude of kernel
+    versions. It has built-in mechanisms to gracefully handle older kernels,
+    that are missing some of the features, by working around or 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).
+  - Static code analysis via [LGTM](https://lgtm.com/projects/g/libbpf/libbpf) and [Coverity](https://scan.coverity.com/projects/libbpf).

 Package dependencies of libbpf, package names may vary across distros:
  - zlib
@@ -103,7 +89,6 @@ Some major Linux distributions come with kernel BTF already built in:
  - RHEL 8.2+
  - OpenSUSE Tumbleweed (in the next release, as of 2020-06-04)
  - Arch Linux (from kernel 5.7.1.arch1-1)
-  - Ubuntu 20.10

 If your kernel doesn't come with BTF built-in, you'll need to build custom
 kernel. You'll need:
@@ -123,7 +108,6 @@ distributions have Clang/LLVM 10+ packaged by default:
  - Fedora 32+
  - Ubuntu 20.04+
  - Arch Linux
-  - Ubuntu 20.10 (LLVM 11)

 Otherwise, please make sure to update it on your system.

--- a/include/linux/filter.h
+++ b/include/linux/filter.h
@@ -5,14 +5,6 @@

 #include <linux/bpf.h>

-#define BPF_RAW_INSN(CODE, DST, SRC, OFF, IMM)			\
-	((struct bpf_insn) {					\
-		.code = CODE,					\
-		.dst_reg = DST,					\
-		.src_reg = SRC,					\
-		.off = OFF,					\
-		.imm = IMM })
-
 #define BPF_ALU64_IMM(OP, DST, IMM)				\
 	((struct bpf_insn) {					\
 		.code  = BPF_ALU64 | BPF_OP(OP) | BPF_K,	\
--- a/include/linux/list.h
+++ b/include/linux/list.h
@@ -72,20 +72,11 @@ static inline void list_del(struct list_head *entry)
        entry->prev = LIST_POISON2;
 }

-static inline int list_empty(const struct list_head *head)
-{
-	return head->next == head;
-}
-
 #define list_entry(ptr, type, member) \
        container_of(ptr, type, member)
 #define list_first_entry(ptr, type, member) \
        list_entry((ptr)->next, type, member)
 #define list_next_entry(pos, member) \
        list_entry((pos)->member.next, typeof(*(pos)), member)
-#define list_for_each_entry(pos, head, member) \
-	for (pos = list_first_entry(head, typeof(*pos), member); \
-	     &pos->member != (head); \
-	     pos = list_next_entry(pos, member))

 #endif
--- a/include/tools/libc_compat.h
+++ b/include/tools/libc_compat.h
@@ -0,0 +1,20 @@
+// SPDX-License-Identifier: (LGPL-2.0+ OR BSD-2-Clause)
+/* Copyright (C) 2018 Netronome Systems, Inc. */
+
+#ifndef __TOOLS_LIBC_COMPAT_H
+#define __TOOLS_LIBC_COMPAT_H
+
+#include <stdlib.h>
+#include <linux/overflow.h>
+
+#ifdef COMPAT_NEED_REALLOCARRAY
+static inline void *reallocarray(void *ptr, size_t nmemb, size_t size)
+{
+	size_t bytes;
+
+	if (unlikely(check_mul_overflow(nmemb, size, &bytes)))
+		return NULL;
+	return realloc(ptr, bytes);
+}
+#endif
+#endif
--- a/include/uapi/linux/bpf.h
+++ b/include/uapi/linux/bpf.h
--- a/include/uapi/linux/if_link.h
+++ b/include/uapi/linux/if_link.h
@@ -344,7 +344,6 @@ enum {
 	IFLA_BRPORT_ISOLATED,
 	IFLA_BRPORT_BACKUP_PORT,
 	IFLA_BRPORT_MRP_RING_OPEN,
-	IFLA_BRPORT_MRP_IN_OPEN,
 	__IFLA_BRPORT_MAX
 };
 #define IFLA_BRPORT_MAX (__IFLA_BRPORT_MAX - 1)
--- a/include/uapi/linux/if_xdp.h
+++ b/include/uapi/linux/if_xdp.h
@@ -73,12 +73,9 @@ struct xdp_umem_reg {
 };

 struct xdp_statistics {
-	__u64 rx_dropped; /* Dropped for other reasons */
+	__u64 rx_dropped; /* Dropped for reasons other than invalid desc */
 	__u64 rx_invalid_descs; /* Dropped due to invalid descriptor */
 	__u64 tx_invalid_descs; /* Dropped due to invalid descriptor */
-	__u64 rx_ring_full; /* Dropped due to rx ring being full */
-	__u64 rx_fill_ring_empty_descs; /* Failed to retrieve item from fill ring */
-	__u64 tx_ring_empty_descs; /* Failed to retrieve item from tx ring */
 };

 struct xdp_options {
--- a/scripts/check-reallocarray.sh
+++ b/scripts/check-reallocarray.sh
@@ -0,0 +1,18 @@
+#!/bin/sh
+
+tfile=$(mktemp /tmp/test_reallocarray_XXXXXXXX.c)
+ofile=${tfile%.c}.o
+
+cat > $tfile <<EOL
+#define _GNU_SOURCE
+#include <stdlib.h>
+
+int main(void)
+{
+	return !!reallocarray(NULL, 1, 1);
+}
+EOL
+
+gcc $tfile -o $ofile >/dev/null 2>&1
+if [ $? -ne 0 ]; then echo "FAIL"; fi
+/bin/rm -f $tfile $ofile
--- a/scripts/sync-kernel.sh
+++ b/scripts/sync-kernel.sh
@@ -6,6 +6,7 @@ usage () {
 	echo "Set BPF_NEXT_BASELINE to override bpf-next tree commit, otherwise read from <libbpf-repo>/CHECKPOINT-COMMIT."
 	echo "Set BPF_BASELINE to override bpf tree commit, otherwise read from <libbpf-repo>/BPF-CHECKPOINT-COMMIT."
 	echo "Set MANUAL_MODE to 1 to manually control every cherry-picked commits."
+	echo "Set IGNORE_CONSISTENCY to 1 to ignore failed contents consistency check."
 	exit 1
 }

@@ -45,12 +46,12 @@ PATH_MAP=(									\
 	[tools/include/uapi/linux/if_link.h]=include/uapi/linux/if_link.h	\
 	[tools/include/uapi/linux/if_xdp.h]=include/uapi/linux/if_xdp.h		\
 	[tools/include/uapi/linux/netlink.h]=include/uapi/linux/netlink.h	\
+	[tools/include/tools/libc_compat.h]=include/tools/libc_compat.h		\
 )

-LIBBPF_PATHS="${!PATH_MAP[@]} :^tools/lib/bpf/Makefile :^tools/lib/bpf/Build :^tools/lib/bpf/.gitignore :^tools/include/tools/libc_compat.h"
+LIBBPF_PATHS="${!PATH_MAP[@]} :^tools/lib/bpf/Makefile :^tools/lib/bpf/Build :^tools/lib/bpf/.gitignore"
 LIBBPF_VIEW_PATHS="${PATH_MAP[@]}"
 LIBBPF_VIEW_EXCLUDE_REGEX='^src/(Makefile|Build|test_libbpf\.c|bpf_helper_defs\.h|\.gitignore)$'
-LINUX_VIEW_EXCLUDE_REGEX='^include/tools/libc_compat.h$'

 LIBBPF_TREE_FILTER="mkdir -p __libbpf/include/uapi/linux __libbpf/include/tools && "$'\\\n'
 for p in "${!PATH_MAP[@]}"; do
@@ -136,7 +137,6 @@ cherry_pick_commits()
 			echo "Warning! Cherry-picking '${desc} failed, checking if it's non-libbpf files causing problems..."
 			libbpf_conflict_cnt=$(git diff --name-only --diff-filter=U -- ${LIBBPF_PATHS[@]} | wc -l)
 			conflict_cnt=$(git diff --name-only | wc -l)
-			prompt_resolution=1

 			if ((${libbpf_conflict_cnt} == 0)); then
 				echo "Looks like only non-libbpf files have conflicts, ignoring..."
@@ -152,37 +152,15 @@ cherry_pick_commits()
 					echo "Error! That still failed! Please resolve manually."
 				else
 					echo "Success! All cherry-pick conflicts were resolved for '${desc}'!"
-					prompt_resolution=0
+					continue
 				fi
 			fi

-			if ((${prompt_resolution} == 1)); then
-				read -p "Error! Cherry-picking '${desc}' failed, please fix manually and press <return> to proceed..."
-			fi
+			read -p "Error! Cherry-picking '${desc}' failed, please fix manually and press <return> to proceed..."
 		fi
-		# Append signature of just cherry-picked commit to avoid
-		# potentially cherry-picking the same commit twice later when
-		# processing bpf tree commits. At this point we don't know yet
-		# the final commit sha in libbpf repo, so we record Linux SHA
-		# instead as LINUX_<sha>.
-		echo LINUX_$(git log --pretty='%h' -n1) "${signature}" >> ${TMP_DIR}/libbpf_commits.txt
 	done
 }

-cleanup()
-{
-	echo "Cleaning up..."
-	rm -r ${TMP_DIR}
-	cd_to ${LINUX_REPO}
-	git checkout ${TIP_SYM_REF}
-	git branch -D ${BASELINE_TAG} ${TIP_TAG} ${BPF_BASELINE_TAG} ${BPF_TIP_TAG} \
-		      ${SQUASH_BASE_TAG} ${SQUASH_TIP_TAG} ${VIEW_TAG} || true
-
-	cd_to .
-	echo "DONE."
-}
-
-
 cd_to ${LIBBPF_REPO}
 GITHUB_ABS_DIR=$(pwd)
 echo "Dumping existing libbpf commit signatures..."
@@ -248,7 +226,6 @@ FILTER_BRANCH_SQUELCH_WARNING=1 git filter-branch --prune-empty -f --subdirector
 COMMIT_CNT=$(git rev-list --count ${SQUASH_BASE_TAG}..${SQUASH_TIP_TAG})
 if ((${COMMIT_CNT} <= 0)); then
    echo "No new changes to apply, we are done!"
-    cleanup
    exit 2
 fi

@@ -260,7 +237,7 @@ cd_to ${LIBBPF_REPO}
 git checkout -b ${LIBBPF_SYNC_TAG}

 for patch in $(ls -1 ${TMP_DIR}/patches | tail -n +2); do
-	if ! git am --3way --committer-date-is-author-date "${TMP_DIR}/patches/${patch}"; then
+	if ! git am --committer-date-is-author-date "${TMP_DIR}/patches/${patch}"; then
 		read -p "Applying ${TMP_DIR}/patches/${patch} failed, please resolve manually and press <return> to proceed..."
 	fi
 done
@@ -309,7 +286,7 @@ cd_to ${LINUX_REPO}
 git checkout -b ${VIEW_TAG} ${TIP_COMMIT}
 FILTER_BRANCH_SQUELCH_WARNING=1 git filter-branch -f --tree-filter "${LIBBPF_TREE_FILTER}" ${VIEW_TAG}^..${VIEW_TAG}
 FILTER_BRANCH_SQUELCH_WARNING=1 git filter-branch -f --subdirectory-filter __libbpf ${VIEW_TAG}^..${VIEW_TAG}
-git ls-files -- ${LIBBPF_VIEW_PATHS[@]} | grep -v -E "${LINUX_VIEW_EXCLUDE_REGEX}" > ${TMP_DIR}/linux-view.ls
+git ls-files -- ${LIBBPF_VIEW_PATHS[@]} > ${TMP_DIR}/linux-view.ls

 cd_to ${LIBBPF_REPO}
 git ls-files -- ${LIBBPF_VIEW_PATHS[@]} | grep -v -E "${LIBBPF_VIEW_EXCLUDE_REGEX}" > ${TMP_DIR}/github-view.ls
@@ -327,17 +304,19 @@ done
 if ((${CONSISTENT} == 1)); then
 	echo "Great! Content is identical!"
 else
-	ignore_inconsistency=n
-	echo "Unfortunately, there are some inconsistencies, please double check."
-	read -p "Does everything look good? [y/N]: " ignore_inconsistency
-	case "${ignore_inconsistency}" in
-		"y" | "Y")
-			echo "Ok, proceeding..."
-			;;
-		*)
-			echo "Oops, exiting with error..."
-			exit 4
-	esac
+	echo "Unfortunately, there are consistency problems!"
+	if ((${IGNORE_CONSISTENCY-0} != 1)); then
+		exit 4
+	fi
 fi

-cleanup
+echo "Cleaning up..."
+rm -r ${TMP_DIR}
+cd_to ${LINUX_REPO}
+git checkout ${TIP_SYM_REF}
+git branch -D ${BASELINE_TAG} ${TIP_TAG} ${BPF_BASELINE_TAG} ${BPF_TIP_TAG} \
+	      ${SQUASH_BASE_TAG} ${SQUASH_TIP_TAG} ${VIEW_TAG}
+
+cd_to .
+echo "DONE."
+
--- a/src/Makefile
+++ b/src/Makefile
@@ -1,13 +1,5 @@
 # SPDX-License-Identifier: (LGPL-2.1 OR BSD-2-Clause)

-ifeq ($(V),1)
-	Q =
-	msg =
-else
-	Q = @
-	msg = @printf '  %-8s %s%s\n' "$(1)" "$(notdir $(2))" "$(if $(3), $(3))";
-endif
-
 LIBBPF_VERSION := $(shell \
 	grep -oE '^LIBBPF_([0-9.]+)' libbpf.map | \
 	sort -rV | head -n1 | cut -d'_' -f2)
@@ -18,6 +10,11 @@ TOPDIR = ..
 INCLUDES := -I. -I$(TOPDIR)/include -I$(TOPDIR)/include/uapi
 ALL_CFLAGS := $(INCLUDES)

+FEATURE_REALLOCARRAY := $(shell $(TOPDIR)/scripts/check-reallocarray.sh)
+ifneq ($(FEATURE_REALLOCARRAY),)
+	ALL_CFLAGS += -DCOMPAT_NEED_REALLOCARRAY
+endif
+
 SHARED_CFLAGS += -fPIC -fvisibility=hidden -DSHARED

 CFLAGS ?= -g -O2 -Werror -Wall
@@ -27,8 +24,8 @@ ifdef NO_PKG_CONFIG
 	ALL_LDFLAGS += -lelf -lz
 else
 	PKG_CONFIG ?= pkg-config
-	ALL_CFLAGS += $(shell $(PKG_CONFIG) --cflags libelf zlib)
-	ALL_LDFLAGS += $(shell $(PKG_CONFIG) --libs libelf zlib)
+	ALL_CFLAGS += $(shell $(PKG_CONFIG) --cflags libelf)
+	ALL_LDFLAGS += $(shell $(PKG_CONFIG) --libs libelf)
 endif

 OBJDIR ?= .
@@ -76,54 +73,50 @@ TAGS_PROG := $(if $(shell which etags 2>/dev/null),etags,ctags)
 all: $(STATIC_LIBS) $(SHARED_LIBS) $(PC_FILE)

 $(OBJDIR)/libbpf.a: $(STATIC_OBJS)
-	$(call msg,AR,$@)
-	$(Q)$(AR) rcs $@ $^
+	$(AR) rcs $@ $^

 $(OBJDIR)/libbpf.so: $(OBJDIR)/libbpf.so.$(LIBBPF_MAJOR_VERSION)
-	$(Q)ln -sf $(^F) $@
+	ln -sf $(^F) $@

 $(OBJDIR)/libbpf.so.$(LIBBPF_MAJOR_VERSION): $(OBJDIR)/libbpf.so.$(LIBBPF_VERSION)
-	$(Q)ln -sf $(^F) $@
+	ln -sf $(^F) $@

 $(OBJDIR)/libbpf.so.$(LIBBPF_VERSION): $(SHARED_OBJS)
-	$(call msg,CC,$@)
-	$(Q)$(CC) -shared -Wl,--version-script=$(VERSION_SCRIPT) \
-		  -Wl,-soname,libbpf.so.$(LIBBPF_MAJOR_VERSION) \
-		  $^ $(ALL_LDFLAGS) -o $@
+	$(CC) -shared -Wl,--version-script=$(VERSION_SCRIPT) \
+		      -Wl,-soname,libbpf.so.$(LIBBPF_MAJOR_VERSION) \
+		      $^ $(ALL_LDFLAGS) -o $@

 $(OBJDIR)/libbpf.pc:
-	$(Q)sed -e "s|@PREFIX@|$(PREFIX)|" \
+	sed -e "s|@PREFIX@|$(PREFIX)|" \
 		-e "s|@LIBDIR@|$(LIBDIR)|" \
 		-e "s|@VERSION@|$(LIBBPF_VERSION)|" \
 		< libbpf.pc.template > $@

-$(STATIC_OBJDIR) $(SHARED_OBJDIR):
-	$(call msg,MKDIR,$@)
-	$(Q)mkdir -p $@
+$(STATIC_OBJDIR):
+	mkdir -p $(STATIC_OBJDIR)
+
+$(SHARED_OBJDIR):
+	mkdir -p $(SHARED_OBJDIR)

 $(STATIC_OBJDIR)/%.o: %.c | $(STATIC_OBJDIR)
-	$(call msg,CC,$@)
-	$(Q)$(CC) $(ALL_CFLAGS) $(CPPFLAGS) -c $< -o $@
+	$(CC) $(ALL_CFLAGS) $(CPPFLAGS) -c $< -o $@

 $(SHARED_OBJDIR)/%.o: %.c | $(SHARED_OBJDIR)
-	$(call msg,CC,$@)
-	$(Q)$(CC) $(ALL_CFLAGS) $(SHARED_CFLAGS) $(CPPFLAGS) -c $< -o $@
+	$(CC) $(ALL_CFLAGS) $(SHARED_CFLAGS) $(CPPFLAGS) -c $< -o $@

 define do_install
-	$(call msg,INSTALL,$1)
-	$(Q)if [ ! -d '$(DESTDIR)$2' ]; then		\
+	if [ ! -d '$(DESTDIR)$2' ]; then		\
 		$(INSTALL) -d -m 755 '$(DESTDIR)$2';	\
-	fi;
-	$(Q)$(INSTALL) $1 $(if $3,-m $3,) '$(DESTDIR)$2'
+	fi;						\
+	$(INSTALL) $1 $(if $3,-m $3,) '$(DESTDIR)$2'
 endef

 # Preserve symlinks at installation.
 define do_s_install
-	$(call msg,INSTALL,$1)
-	$(Q)if [ ! -d '$(DESTDIR)$2' ]; then		\
+	if [ ! -d '$(DESTDIR)$2' ]; then		\
 		$(INSTALL) -d -m 755 '$(DESTDIR)$2';	\
-	fi;
-	$(Q)cp -fpR $1 '$(DESTDIR)$2'
+	fi;						\
+	cp -fpR $1 '$(DESTDIR)$2'
 endef

 install: all install_headers install_pkgconfig
@@ -141,16 +134,13 @@ install_pkgconfig: $(PC_FILE)
 	$(call do_install,$(PC_FILE),$(LIBDIR)/pkgconfig,644)

 clean:
-	$(call msg,CLEAN)
-	$(Q)rm -rf *.o *.a *.so *.so.* *.pc $(SHARED_OBJDIR) $(STATIC_OBJDIR)
+	rm -rf *.o *.a *.so *.so.* *.pc $(SHARED_OBJDIR) $(STATIC_OBJDIR)

 .PHONY: cscope tags
 cscope:
-	$(call msg,CSCOPE)
-	$(Q)ls *.c *.h > cscope.files
-	$(Q)cscope -b -q -f cscope.out
+	ls *.c *.h > cscope.files
+	cscope -b -q -f cscope.out

 tags:
-	$(call msg,CTAGS)
-	$(Q)rm -f TAGS tags
-	$(Q)ls *.c *.h | xargs $(TAGS_PROG) -a
+	rm -f TAGS tags
+	ls *.c *.h | xargs $(TAGS_PROG) -a
--- a/src/bpf.c
+++ b/src/bpf.c
@@ -32,6 +32,9 @@
 #include "libbpf.h"
 #include "libbpf_internal.h"

+/* make sure libbpf doesn't use kernel-only integer typedefs */
+#pragma GCC poison u8 u16 u32 u64 s8 s16 s32 s64
+
 /*
 * When building perf, unistd.h is overridden. __NR_bpf is
 * required to be defined explicitly.
@@ -586,45 +589,19 @@ int bpf_link_create(int prog_fd, int target_fd,
 		    enum bpf_attach_type attach_type,
 		    const struct bpf_link_create_opts *opts)
 {
-	__u32 target_btf_id, iter_info_len;
 	union bpf_attr attr;

 	if (!OPTS_VALID(opts, bpf_link_create_opts))
 		return -EINVAL;

-	iter_info_len = OPTS_GET(opts, iter_info_len, 0);
-	target_btf_id = OPTS_GET(opts, target_btf_id, 0);
-
-	if (iter_info_len && target_btf_id)
-		return -EINVAL;
-
 	memset(&attr, 0, sizeof(attr));
 	attr.link_create.prog_fd = prog_fd;
 	attr.link_create.target_fd = target_fd;
 	attr.link_create.attach_type = attach_type;
-	attr.link_create.flags = OPTS_GET(opts, flags, 0);
-
-	if (iter_info_len) {
-		attr.link_create.iter_info =
-			ptr_to_u64(OPTS_GET(opts, iter_info, (void *)0));
-		attr.link_create.iter_info_len = iter_info_len;
-	} else if (target_btf_id) {
-		attr.link_create.target_btf_id = target_btf_id;
-	}

 	return sys_bpf(BPF_LINK_CREATE, &attr, sizeof(attr));
 }

-int bpf_link_detach(int link_fd)
-{
-	union bpf_attr attr;
-
-	memset(&attr, 0, sizeof(attr));
-	attr.link_detach.link_fd = link_fd;
-
-	return sys_bpf(BPF_LINK_DETACH, &attr, sizeof(attr));
-}
-
 int bpf_link_update(int link_fd, int new_prog_fd,
 		    const struct bpf_link_update_opts *opts)
 {
@@ -724,37 +701,6 @@ int bpf_prog_test_run_xattr(struct bpf_prog_test_run_attr *test_attr)
 	return ret;
 }

-int bpf_prog_test_run_opts(int prog_fd, struct bpf_test_run_opts *opts)
-{
-	union bpf_attr attr;
-	int ret;
-
-	if (!OPTS_VALID(opts, bpf_test_run_opts))
-		return -EINVAL;
-
-	memset(&attr, 0, sizeof(attr));
-	attr.test.prog_fd = prog_fd;
-	attr.test.cpu = OPTS_GET(opts, cpu, 0);
-	attr.test.flags = OPTS_GET(opts, flags, 0);
-	attr.test.repeat = OPTS_GET(opts, repeat, 0);
-	attr.test.duration = OPTS_GET(opts, duration, 0);
-	attr.test.ctx_size_in = OPTS_GET(opts, ctx_size_in, 0);
-	attr.test.ctx_size_out = OPTS_GET(opts, ctx_size_out, 0);
-	attr.test.data_size_in = OPTS_GET(opts, data_size_in, 0);
-	attr.test.data_size_out = OPTS_GET(opts, data_size_out, 0);
-	attr.test.ctx_in = ptr_to_u64(OPTS_GET(opts, ctx_in, NULL));
-	attr.test.ctx_out = ptr_to_u64(OPTS_GET(opts, ctx_out, NULL));
-	attr.test.data_in = ptr_to_u64(OPTS_GET(opts, data_in, NULL));
-	attr.test.data_out = ptr_to_u64(OPTS_GET(opts, data_out, NULL));
-
-	ret = sys_bpf(BPF_PROG_TEST_RUN, &attr, sizeof(attr));
-	OPTS_SET(opts, data_size_out, attr.test.data_size_out);
-	OPTS_SET(opts, ctx_size_out, attr.test.ctx_size_out);
-	OPTS_SET(opts, duration, attr.test.duration);
-	OPTS_SET(opts, retval, attr.test.retval);
-	return ret;
-}
-
 static int bpf_obj_get_next_id(__u32 start_id, __u32 *next_id, int cmd)
 {
 	union bpf_attr attr;
@@ -858,7 +804,7 @@ int bpf_raw_tracepoint_open(const char *name, int prog_fd)
 	return sys_bpf(BPF_RAW_TRACEPOINT_OPEN, &attr, sizeof(attr));
 }

-int bpf_load_btf(const void *btf, __u32 btf_size, char *log_buf, __u32 log_buf_size,
+int bpf_load_btf(void *btf, __u32 btf_size, char *log_buf, __u32 log_buf_size,
 		 bool do_log)
 {
 	union bpf_attr attr = {};
@@ -915,19 +861,3 @@ int bpf_enable_stats(enum bpf_stats_type type)

 	return sys_bpf(BPF_ENABLE_STATS, &attr, sizeof(attr));
 }
-
-int bpf_prog_bind_map(int prog_fd, int map_fd,
-		      const struct bpf_prog_bind_opts *opts)
-{
-	union bpf_attr attr;
-
-	if (!OPTS_VALID(opts, bpf_prog_bind_opts))
-		return -EINVAL;
-
-	memset(&attr, 0, sizeof(attr));
-	attr.prog_bind_map.prog_fd = prog_fd;
-	attr.prog_bind_map.map_fd = map_fd;
-	attr.prog_bind_map.flags = OPTS_GET(opts, flags, 0);
-
-	return sys_bpf(BPF_PROG_BIND_MAP, &attr, sizeof(attr));
-}
--- a/src/bpf.h
+++ b/src/bpf.h
@@ -168,22 +168,15 @@ 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);

-union bpf_iter_link_info; /* defined in up-to-date linux/bpf.h */
 struct bpf_link_create_opts {
 	size_t sz; /* size of this struct for forward/backward compatibility */
-	__u32 flags;
-	union bpf_iter_link_info *iter_info;
-	__u32 iter_info_len;
-	__u32 target_btf_id;
 };
-#define bpf_link_create_opts__last_field target_btf_id
+#define bpf_link_create_opts__last_field sz

 LIBBPF_API int bpf_link_create(int prog_fd, int target_fd,
 			       enum bpf_attach_type attach_type,
 			       const struct bpf_link_create_opts *opts);

-LIBBPF_API int bpf_link_detach(int link_fd);
-
 struct bpf_link_update_opts {
 	size_t sz; /* size of this struct for forward/backward compatibility */
 	__u32 flags;	   /* extra flags */
@@ -235,7 +228,7 @@ 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_load_btf(const void *btf, __u32 btf_size, char *log_buf,
+LIBBPF_API int bpf_load_btf(void *btf, __u32 btf_size, char *log_buf,
 			    __u32 log_buf_size, bool do_log);
 LIBBPF_API int bpf_task_fd_query(int pid, int fd, __u32 flags, char *buf,
 				 __u32 *buf_len, __u32 *prog_id, __u32 *fd_type,
@@ -244,40 +237,6 @@ LIBBPF_API int bpf_task_fd_query(int pid, int fd, __u32 flags, char *buf,
 enum bpf_stats_type; /* defined in up-to-date linux/bpf.h */
 LIBBPF_API int bpf_enable_stats(enum bpf_stats_type type);

-struct bpf_prog_bind_opts {
-	size_t sz; /* size of this struct for forward/backward compatibility */
-	__u32 flags;
-};
-#define bpf_prog_bind_opts__last_field flags
-
-LIBBPF_API int bpf_prog_bind_map(int prog_fd, int map_fd,
-				 const struct bpf_prog_bind_opts *opts);
-
-struct bpf_test_run_opts {
-	size_t sz; /* size of this struct for forward/backward compatibility */
-	const void *data_in; /* optional */
-	void *data_out;      /* optional */
-	__u32 data_size_in;
-	__u32 data_size_out; /* in: max length of data_out
-			      * out: length of data_out
-			      */
-	const void *ctx_in; /* optional */
-	void *ctx_out;      /* optional */
-	__u32 ctx_size_in;
-	__u32 ctx_size_out; /* in: max length of ctx_out
-			     * out: length of cxt_out
-			     */
-	__u32 retval;        /* out: return code of the BPF program */
-	int repeat;
-	__u32 duration;      /* out: average per repetition in ns */
-	__u32 flags;
-	__u32 cpu;
-};
-#define bpf_test_run_opts__last_field cpu
-
-LIBBPF_API int bpf_prog_test_run_opts(int prog_fd,
-				      struct bpf_test_run_opts *opts);
-
 #ifdef __cplusplus
 } /* extern "C" */
 #endif
--- a/src/bpf_core_read.h
+++ b/src/bpf_core_read.h
@@ -19,52 +19,32 @@ enum bpf_field_info_kind {
 	BPF_FIELD_RSHIFT_U64 = 5,
 };

-/* second argument to __builtin_btf_type_id() built-in */
-enum bpf_type_id_kind {
-	BPF_TYPE_ID_LOCAL = 0,		/* BTF type ID in local program */
-	BPF_TYPE_ID_TARGET = 1,		/* BTF type ID in target kernel */
-};
-
-/* second argument to __builtin_preserve_type_info() built-in */
-enum bpf_type_info_kind {
-	BPF_TYPE_EXISTS = 0,		/* type existence in target kernel */
-	BPF_TYPE_SIZE = 1,		/* type size in target kernel */
-};
-
-/* second argument to __builtin_preserve_enum_value() built-in */
-enum bpf_enum_value_kind {
-	BPF_ENUMVAL_EXISTS = 0,		/* enum value existence in kernel */
-	BPF_ENUMVAL_VALUE = 1,		/* enum value value relocation */
-};
-
 #define __CORE_RELO(src, field, info)					      \
 	__builtin_preserve_field_info((src)->field, BPF_FIELD_##info)

 #if __BYTE_ORDER == __LITTLE_ENDIAN
 #define __CORE_BITFIELD_PROBE_READ(dst, src, fld)			      \
-	bpf_probe_read_kernel(						      \
-			(void *)dst,				      \
-			__CORE_RELO(src, fld, BYTE_SIZE),		      \
-			(const void *)src + __CORE_RELO(src, fld, BYTE_OFFSET))
+	bpf_probe_read((void *)dst,					      \
+		       __CORE_RELO(src, fld, BYTE_SIZE),		      \
+		       (const void *)src + __CORE_RELO(src, fld, BYTE_OFFSET))
 #else
 /* semantics of LSHIFT_64 assumes loading values into low-ordered bytes, so
 * for big-endian we need to adjust destination pointer accordingly, based on
 * field byte size
 */
 #define __CORE_BITFIELD_PROBE_READ(dst, src, fld)			      \
-	bpf_probe_read_kernel(						      \
-			(void *)dst + (8 - __CORE_RELO(src, fld, BYTE_SIZE)), \
-			__CORE_RELO(src, fld, BYTE_SIZE),		      \
-			(const void *)src + __CORE_RELO(src, fld, BYTE_OFFSET))
+	bpf_probe_read((void *)dst + (8 - __CORE_RELO(src, fld, BYTE_SIZE)),  \
+		       __CORE_RELO(src, fld, BYTE_SIZE),		      \
+		       (const void *)src + __CORE_RELO(src, fld, BYTE_OFFSET))
 #endif

 /*
 * Extract bitfield, identified by s->field, and return its value as u64.
 * All this is done in relocatable manner, so bitfield changes such as
 * signedness, bit size, offset changes, this will be handled automatically.
- * This version of macro is using bpf_probe_read_kernel() to read underlying
- * integer storage. Macro functions as an expression and its return type is
- * bpf_probe_read_kernel()'s return value: 0, on success, <0 on error.
+ * This version of macro is using bpf_probe_read() to read underlying integer
+ * storage. Macro functions as an expression and its return type is
+ * bpf_probe_read()'s return value: 0, on success, <0 on error.
 */
 #define BPF_CORE_READ_BITFIELD_PROBED(s, field) ({			      \
 	unsigned long long val = 0;					      \
@@ -112,75 +92,15 @@ enum bpf_enum_value_kind {
 	__builtin_preserve_field_info(field, BPF_FIELD_EXISTS)

 /*
- * Convenience macro to get the byte size of a field. Works for integers,
+ * Convenience macro to get byte size of a field. Works for integers,
 * struct/unions, pointers, arrays, and enums.
 */
 #define bpf_core_field_size(field)					    \
 	__builtin_preserve_field_info(field, BPF_FIELD_BYTE_SIZE)

 /*
- * Convenience macro to get BTF type ID of a specified type, using a local BTF
- * information. Return 32-bit unsigned integer with type ID from program's own
- * BTF. Always succeeds.
- */
-#define bpf_core_type_id_local(type)					    \
-	__builtin_btf_type_id(*(typeof(type) *)0, BPF_TYPE_ID_LOCAL)
-
-/*
- * Convenience macro to get BTF type ID of a target kernel's type that matches
- * specified local type.
- * Returns:
- *    - valid 32-bit unsigned type ID in kernel BTF;
- *    - 0, if no matching type was found in a target kernel BTF.
- */
-#define bpf_core_type_id_kernel(type)					    \
-	__builtin_btf_type_id(*(typeof(type) *)0, BPF_TYPE_ID_TARGET)
-
-/*
- * Convenience macro to check that provided named type
- * (struct/union/enum/typedef) exists in a target kernel.
- * Returns:
- *    1, if such type is present in target kernel's BTF;
- *    0, if no matching type is found.
- */
-#define bpf_core_type_exists(type)					    \
-	__builtin_preserve_type_info(*(typeof(type) *)0, BPF_TYPE_EXISTS)
-
-/*
- * Convenience macro to get the byte size of a provided named type
- * (struct/union/enum/typedef) in a target kernel.
- * Returns:
- *    >= 0 size (in bytes), if type is present in target kernel's BTF;
- *    0, if no matching type is found.
- */
-#define bpf_core_type_size(type)					    \
-	__builtin_preserve_type_info(*(typeof(type) *)0, BPF_TYPE_SIZE)
-
-/*
- * Convenience macro to check that provided enumerator value is defined in
- * a target kernel.
- * Returns:
- *    1, if specified enum type and its enumerator value are present in target
- *    kernel's BTF;
- *    0, if no matching enum and/or enum value within that enum is found.
- */
-#define bpf_core_enum_value_exists(enum_type, enum_value)		    \
-	__builtin_preserve_enum_value(*(typeof(enum_type) *)enum_value, BPF_ENUMVAL_EXISTS)
-
-/*
- * Convenience macro to get the integer value of an enumerator value in
- * a target kernel.
- * Returns:
- *    64-bit value, if specified enum type and its enumerator value are
- *    present in target kernel's BTF;
- *    0, if no matching enum and/or enum value within that enum is found.
- */
-#define bpf_core_enum_value(enum_type, enum_value)			    \
-	__builtin_preserve_enum_value(*(typeof(enum_type) *)enum_value, BPF_ENUMVAL_VALUE)
-
-/*
- * bpf_core_read() abstracts away bpf_probe_read_kernel() call and captures
- * offset relocation for source address using __builtin_preserve_access_index()
+ * bpf_core_read() abstracts away bpf_probe_read() call and captures offset
+ * relocation for source address using __builtin_preserve_access_index()
 * built-in, provided by Clang.
 *
 * __builtin_preserve_access_index() takes as an argument an expression of
@@ -195,8 +115,8 @@ enum bpf_enum_value_kind {
 * (local) BTF, used to record relocation.
 */
 #define bpf_core_read(dst, sz, src)					    \
-	bpf_probe_read_kernel(dst, sz,					    \
-			      (const void *)__builtin_preserve_access_index(src))
+	bpf_probe_read(dst, sz,						    \
+		       (const void *)__builtin_preserve_access_index(src))

 /*
 * bpf_core_read_str() is a thin wrapper around bpf_probe_read_str()
@@ -204,8 +124,8 @@ enum bpf_enum_value_kind {
 * argument.
 */
 #define bpf_core_read_str(dst, sz, src)					    \
-	bpf_probe_read_kernel_str(dst, sz,				    \
-				  (const void *)__builtin_preserve_access_index(src))
+	bpf_probe_read_str(dst, sz,					    \
+			   (const void *)__builtin_preserve_access_index(src))

 #define ___concat(a, b) a ## b
 #define ___apply(fn, n) ___concat(fn, n)
@@ -297,7 +217,7 @@ enum bpf_enum_value_kind {
 */
 #define BPF_CORE_READ_INTO(dst, src, a, ...)				    \
 	({								    \
-		___core_read(bpf_core_read, dst, (src), a, ##__VA_ARGS__)   \
+		___core_read(bpf_core_read, dst, src, a, ##__VA_ARGS__)	    \
 	})

 /*
@@ -307,7 +227,7 @@ enum bpf_enum_value_kind {
 */
 #define BPF_CORE_READ_STR_INTO(dst, src, a, ...)			    \
 	({								    \
-		___core_read(bpf_core_read_str, dst, (src), a, ##__VA_ARGS__)\
+		___core_read(bpf_core_read_str, dst, src, a, ##__VA_ARGS__) \
 	})

 /*
@@ -319,25 +239,23 @@ enum bpf_enum_value_kind {
 *	int x = BPF_CORE_READ(s, a.b.c, d.e, f, g);
 *
 * BPF_CORE_READ will decompose above statement into 4 bpf_core_read (BPF
- * CO-RE relocatable bpf_probe_read_kernel() wrapper) calls, logically
- * equivalent to:
+ * CO-RE relocatable bpf_probe_read() wrapper) calls, logically equivalent to:
 * 1. const void *__t = s->a.b.c;
 * 2. __t = __t->d.e;
 * 3. __t = __t->f;
 * 4. return __t->g;
 *
 * Equivalence is logical, because there is a heavy type casting/preservation
- * involved, as well as all the reads are happening through
- * bpf_probe_read_kernel() calls using __builtin_preserve_access_index() to
- * emit CO-RE relocations.
+ * involved, as well as all the reads are happening through bpf_probe_read()
+ * calls using __builtin_preserve_access_index() to emit CO-RE relocations.
 *
 * N.B. Only up to 9 "field accessors" are supported, which should be more
 * than enough for any practical purpose.
 */
 #define BPF_CORE_READ(src, a, ...)					    \
 	({								    \
-		___type((src), a, ##__VA_ARGS__) __r;			    \
-		BPF_CORE_READ_INTO(&__r, (src), a, ##__VA_ARGS__);	    \
+		___type(src, a, ##__VA_ARGS__) __r;			    \
+		BPF_CORE_READ_INTO(&__r, src, a, ##__VA_ARGS__);	    \
 		__r;							    \
 	})

--- a/src/bpf_endian.h
+++ b/src/bpf_endian.h
@@ -2,35 +2,8 @@
 #ifndef __BPF_ENDIAN__
 #define __BPF_ENDIAN__

-/*
- * Isolate byte #n and put it into byte #m, for __u##b type.
- * E.g., moving byte #6 (nnnnnnnn) into byte #1 (mmmmmmmm) for __u64:
- * 1) xxxxxxxx nnnnnnnn xxxxxxxx xxxxxxxx xxxxxxxx xxxxxxxx mmmmmmmm xxxxxxxx
- * 2) nnnnnnnn xxxxxxxx xxxxxxxx xxxxxxxx xxxxxxxx mmmmmmmm xxxxxxxx 00000000
- * 3) 00000000 00000000 00000000 00000000 00000000 00000000 00000000 nnnnnnnn
- * 4) 00000000 00000000 00000000 00000000 00000000 00000000 nnnnnnnn 00000000
- */
-#define ___bpf_mvb(x, b, n, m) ((__u##b)(x) << (b-(n+1)*8) >> (b-8) << (m*8))
-
-#define ___bpf_swab16(x) ((__u16)(			\
-			  ___bpf_mvb(x, 16, 0, 1) |	\
-			  ___bpf_mvb(x, 16, 1, 0)))
-
-#define ___bpf_swab32(x) ((__u32)(			\
-			  ___bpf_mvb(x, 32, 0, 3) |	\
-			  ___bpf_mvb(x, 32, 1, 2) |	\
-			  ___bpf_mvb(x, 32, 2, 1) |	\
-			  ___bpf_mvb(x, 32, 3, 0)))
-
-#define ___bpf_swab64(x) ((__u64)(			\
-			  ___bpf_mvb(x, 64, 0, 7) |	\
-			  ___bpf_mvb(x, 64, 1, 6) |	\
-			  ___bpf_mvb(x, 64, 2, 5) |	\
-			  ___bpf_mvb(x, 64, 3, 4) |	\
-			  ___bpf_mvb(x, 64, 4, 3) |	\
-			  ___bpf_mvb(x, 64, 5, 2) |	\
-			  ___bpf_mvb(x, 64, 6, 1) |	\
-			  ___bpf_mvb(x, 64, 7, 0)))
+#include <linux/stddef.h>
+#include <linux/swab.h>

 /* LLVM's BPF target selects the endianness of the CPU
 * it compiles on, or the user specifies (bpfel/bpfeb),
@@ -50,16 +23,16 @@
 #if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
 # define __bpf_ntohs(x)			__builtin_bswap16(x)
 # define __bpf_htons(x)			__builtin_bswap16(x)
-# define __bpf_constant_ntohs(x)	___bpf_swab16(x)
-# define __bpf_constant_htons(x)	___bpf_swab16(x)
+# define __bpf_constant_ntohs(x)	___constant_swab16(x)
+# define __bpf_constant_htons(x)	___constant_swab16(x)
 # define __bpf_ntohl(x)			__builtin_bswap32(x)
 # define __bpf_htonl(x)			__builtin_bswap32(x)
-# define __bpf_constant_ntohl(x)	___bpf_swab32(x)
-# define __bpf_constant_htonl(x)	___bpf_swab32(x)
+# define __bpf_constant_ntohl(x)	___constant_swab32(x)
+# define __bpf_constant_htonl(x)	___constant_swab32(x)
 # define __bpf_be64_to_cpu(x)		__builtin_bswap64(x)
 # define __bpf_cpu_to_be64(x)		__builtin_bswap64(x)
-# define __bpf_constant_be64_to_cpu(x)	___bpf_swab64(x)
-# define __bpf_constant_cpu_to_be64(x)	___bpf_swab64(x)
+# define __bpf_constant_be64_to_cpu(x)	___constant_swab64(x)
+# define __bpf_constant_cpu_to_be64(x)	___constant_swab64(x)
 #elif __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
 # define __bpf_ntohs(x)			(x)
 # define __bpf_htons(x)			(x)
--- a/src/bpf_helper_defs.h
+++ b/src/bpf_helper_defs.h
--- a/src/bpf_helpers.h
+++ b/src/bpf_helpers.h
@@ -32,9 +32,6 @@
 #ifndef __always_inline
 #define __always_inline __attribute__((always_inline))
 #endif
-#ifndef __noinline
-#define __noinline __attribute__((noinline))
-#endif
 #ifndef __weak
 #define __weak __attribute__((weak))
 #endif
@@ -43,7 +40,7 @@
 * Helper macro to manipulate data structures
 */
 #ifndef offsetof
-#define offsetof(TYPE, MEMBER)	((unsigned long)&((TYPE *)0)->MEMBER)
+#define offsetof(TYPE, MEMBER)  ((size_t)&((TYPE *)0)->MEMBER)
 #endif
 #ifndef container_of
 #define container_of(ptr, type, member)				\
@@ -53,54 +50,6 @@
 	})
 #endif

-/*
- * Helper macro to throw a compilation error if __bpf_unreachable() gets
- * built into the resulting code. This works given BPF back end does not
- * implement __builtin_trap(). This is useful to assert that certain paths
- * of the program code are never used and hence eliminated by the compiler.
- *
- * For example, consider a switch statement that covers known cases used by
- * the program. __bpf_unreachable() can then reside in the default case. If
- * the program gets extended such that a case is not covered in the switch
- * statement, then it will throw a build error due to the default case not
- * being compiled out.
- */
-#ifndef __bpf_unreachable
-# define __bpf_unreachable()	__builtin_trap()
-#endif
-
-/*
- * Helper function to perform a tail call with a constant/immediate map slot.
- */
-#if __clang_major__ >= 8 && defined(__bpf__)
-static __always_inline void
-bpf_tail_call_static(void *ctx, const void *map, const __u32 slot)
-{
-	if (!__builtin_constant_p(slot))
-		__bpf_unreachable();
-
-	/*
-	 * Provide a hard guarantee that LLVM won't optimize setting r2 (map
-	 * pointer) and r3 (constant map index) from _different paths_ ending
-	 * up at the _same_ call insn as otherwise we won't be able to use the
-	 * jmpq/nopl retpoline-free patching by the x86-64 JIT in the kernel
-	 * given they mismatch. See also d2e4c1e6c294 ("bpf: Constant map key
-	 * tracking for prog array pokes") for details on verifier tracking.
-	 *
-	 * Note on clobber list: we need to stay in-line with BPF calling
-	 * convention, so even if we don't end up using r0, r4, r5, we need
-	 * to mark them as clobber so that LLVM doesn't end up using them
-	 * before / after the call.
-	 */
-	asm volatile("r1 = %[ctx]\n\t"
-		     "r2 = %[map]\n\t"
-		     "r3 = %[slot]\n\t"
-		     "call 12"
-		     :: [ctx]"r"(ctx), [map]"r"(map), [slot]"i"(slot)
-		     : "r0", "r1", "r2", "r3", "r4", "r5");
-}
-#endif
-
 /*
 * Helper structure used by eBPF C program
 * to describe BPF map attributes to libbpf loader
@@ -126,6 +75,5 @@ enum libbpf_tristate {
 };

 #define __kconfig __attribute__((section(".kconfig")))
-#define __ksym __attribute__((section(".ksyms")))

 #endif
--- a/src/bpf_prog_linfo.c
+++ b/src/bpf_prog_linfo.c
@@ -8,6 +8,9 @@
 #include "libbpf.h"
 #include "libbpf_internal.h"

+/* make sure libbpf doesn't use kernel-only integer typedefs */
+#pragma GCC poison u8 u16 u32 u64 s8 s16 s32 s64
+
 struct bpf_prog_linfo {
 	void *raw_linfo;
 	void *raw_jited_linfo;
--- a/src/bpf_tracing.h
+++ b/src/bpf_tracing.h
@@ -215,7 +215,7 @@ struct pt_regs;
 #define PT_REGS_PARM5(x) ((x)->regs[8])
 #define PT_REGS_RET(x) ((x)->regs[31])
 #define PT_REGS_FP(x) ((x)->regs[30]) /* Works only with CONFIG_FRAME_POINTER */
-#define PT_REGS_RC(x) ((x)->regs[2])
+#define PT_REGS_RC(x) ((x)->regs[1])
 #define PT_REGS_SP(x) ((x)->regs[29])
 #define PT_REGS_IP(x) ((x)->cp0_epc)

@@ -226,7 +226,7 @@ struct pt_regs;
 #define PT_REGS_PARM5_CORE(x) BPF_CORE_READ((x), regs[8])
 #define PT_REGS_RET_CORE(x) BPF_CORE_READ((x), regs[31])
 #define PT_REGS_FP_CORE(x) BPF_CORE_READ((x), regs[30])
-#define PT_REGS_RC_CORE(x) BPF_CORE_READ((x), regs[2])
+#define PT_REGS_RC_CORE(x) BPF_CORE_READ((x), regs[1])
 #define PT_REGS_SP_CORE(x) BPF_CORE_READ((x), regs[29])
 #define PT_REGS_IP_CORE(x) BPF_CORE_READ((x), cp0_epc)

@@ -289,9 +289,9 @@ struct pt_regs;
 #define BPF_KRETPROBE_READ_RET_IP		BPF_KPROBE_READ_RET_IP
 #else
 #define BPF_KPROBE_READ_RET_IP(ip, ctx)					    \
-	({ bpf_probe_read_kernel(&(ip), sizeof(ip), (void *)PT_REGS_RET(ctx)); })
+	({ bpf_probe_read(&(ip), sizeof(ip), (void *)PT_REGS_RET(ctx)); })
 #define BPF_KRETPROBE_READ_RET_IP(ip, ctx)				    \
-	({ bpf_probe_read_kernel(&(ip), sizeof(ip),			    \
+	({ bpf_probe_read(&(ip), sizeof(ip),				    \
 			  (void *)(PT_REGS_FP(ctx) + sizeof(ip))); })
 #endif

--- a/src/btf.c
+++ b/src/btf.c
--- a/src/btf.h
+++ b/src/btf.h
@@ -5,7 +5,6 @@
 #define __LIBBPF_BTF_H

 #include <stdarg.h>
-#include <stdbool.h>
 #include <linux/btf.h>
 #include <linux/types.h>

@@ -25,17 +24,48 @@ struct btf_type;

 struct bpf_object;

-enum btf_endianness {
-	BTF_LITTLE_ENDIAN = 0,
-	BTF_BIG_ENDIAN = 1,
+/*
+ * The .BTF.ext ELF section layout defined as
+ *   struct btf_ext_header
+ *   func_info subsection
+ *
+ * The func_info subsection layout:
+ *   record size for struct bpf_func_info in the func_info subsection
+ *   struct btf_sec_func_info for section #1
+ *   a list of bpf_func_info records for section #1
+ *     where struct bpf_func_info mimics one in include/uapi/linux/bpf.h
+ *     but may not be identical
+ *   struct btf_sec_func_info for section #2
+ *   a list of bpf_func_info records for section #2
+ *   ......
+ *
+ * Note that the bpf_func_info record size in .BTF.ext may not
+ * be the same as the one defined in include/uapi/linux/bpf.h.
+ * The loader should ensure that record_size meets minimum
+ * requirement and pass the record as is to the kernel. The
+ * kernel will handle the func_info properly based on its contents.
+ */
+struct btf_ext_header {
+	__u16	magic;
+	__u8	version;
+	__u8	flags;
+	__u32	hdr_len;
+
+	/* All offsets are in bytes relative to the end of this header */
+	__u32	func_info_off;
+	__u32	func_info_len;
+	__u32	line_info_off;
+	__u32	line_info_len;
+
+	/* optional part of .BTF.ext header */
+	__u32	field_reloc_off;
+	__u32	field_reloc_len;
 };

 LIBBPF_API void btf__free(struct btf *btf);
-LIBBPF_API struct btf *btf__new(const void *data, __u32 size);
-LIBBPF_API struct btf *btf__new_empty(void);
-LIBBPF_API struct btf *btf__parse(const char *path, struct btf_ext **btf_ext);
-LIBBPF_API struct btf *btf__parse_elf(const char *path, struct btf_ext **btf_ext);
-LIBBPF_API struct btf *btf__parse_raw(const char *path);
+LIBBPF_API struct btf *btf__new(__u8 *data, __u32 size);
+LIBBPF_API struct btf *btf__parse_elf(const char *path,
+				      struct btf_ext **btf_ext);
 LIBBPF_API int btf__finalize_data(struct bpf_object *obj, struct btf *btf);
 LIBBPF_API int btf__load(struct btf *btf);
 LIBBPF_API __s32 btf__find_by_name(const struct btf *btf,
@@ -45,18 +75,12 @@ LIBBPF_API __s32 btf__find_by_name_kind(const struct btf *btf,
 LIBBPF_API __u32 btf__get_nr_types(const struct btf *btf);
 LIBBPF_API const struct btf_type *btf__type_by_id(const struct btf *btf,
 						  __u32 id);
-LIBBPF_API size_t btf__pointer_size(const struct btf *btf);
-LIBBPF_API int btf__set_pointer_size(struct btf *btf, size_t ptr_sz);
-LIBBPF_API enum btf_endianness btf__endianness(const struct btf *btf);
-LIBBPF_API int btf__set_endianness(struct btf *btf, enum btf_endianness endian);
 LIBBPF_API __s64 btf__resolve_size(const struct btf *btf, __u32 type_id);
 LIBBPF_API int btf__resolve_type(const struct btf *btf, __u32 type_id);
 LIBBPF_API int btf__align_of(const struct btf *btf, __u32 id);
 LIBBPF_API int btf__fd(const struct btf *btf);
-LIBBPF_API void btf__set_fd(struct btf *btf, int fd);
 LIBBPF_API const void *btf__get_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_API int btf__get_from_id(__u32 id, struct btf **btf);
 LIBBPF_API int btf__get_map_kv_tids(const struct btf *btf, const char *map_name,
 				    __u32 expected_key_size,
@@ -67,62 +91,19 @@ LIBBPF_API struct btf_ext *btf_ext__new(__u8 *data, __u32 size);
 LIBBPF_API void btf_ext__free(struct btf_ext *btf_ext);
 LIBBPF_API const void *btf_ext__get_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 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 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 __u32 btf_ext__func_info_rec_size(const struct btf_ext *btf_ext);
 LIBBPF_API __u32 btf_ext__line_info_rec_size(const struct btf_ext *btf_ext);

 LIBBPF_API struct btf *libbpf_find_kernel_btf(void);

-LIBBPF_API int btf__find_str(struct btf *btf, const char *s);
-LIBBPF_API int btf__add_str(struct btf *btf, const char *s);
-
-LIBBPF_API int btf__add_int(struct btf *btf, const char *name, size_t byte_sz, int encoding);
-LIBBPF_API int btf__add_ptr(struct btf *btf, int ref_type_id);
-LIBBPF_API int btf__add_array(struct btf *btf,
-			      int index_type_id, int elem_type_id, __u32 nr_elems);
-/* struct/union construction APIs */
-LIBBPF_API int btf__add_struct(struct btf *btf, const char *name, __u32 sz);
-LIBBPF_API int btf__add_union(struct btf *btf, const char *name, __u32 sz);
-LIBBPF_API int btf__add_field(struct btf *btf, const char *name, int field_type_id,
-			      __u32 bit_offset, __u32 bit_size);
-
-/* 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);
-
-enum btf_fwd_kind {
-	BTF_FWD_STRUCT = 0,
-	BTF_FWD_UNION = 1,
-	BTF_FWD_ENUM = 2,
-};
-
-LIBBPF_API int btf__add_fwd(struct btf *btf, const char *name, enum btf_fwd_kind fwd_kind);
-LIBBPF_API int btf__add_typedef(struct btf *btf, const char *name, int ref_type_id);
-LIBBPF_API int btf__add_volatile(struct btf *btf, int ref_type_id);
-LIBBPF_API int btf__add_const(struct btf *btf, int ref_type_id);
-LIBBPF_API int btf__add_restrict(struct btf *btf, int ref_type_id);
-
-/* func and func_proto construction APIs */
-LIBBPF_API int btf__add_func(struct btf *btf, const char *name,
-			     enum btf_func_linkage linkage, int proto_type_id);
-LIBBPF_API int btf__add_func_proto(struct btf *btf, int ret_type_id);
-LIBBPF_API int btf__add_func_param(struct btf *btf, const char *name, int type_id);
-
-/* var & datasec construction APIs */
-LIBBPF_API int btf__add_var(struct btf *btf, const char *name, int linkage, int type_id);
-LIBBPF_API int btf__add_datasec(struct btf *btf, const char *name, __u32 byte_sz);
-LIBBPF_API int btf__add_datasec_var_info(struct btf *btf, int var_type_id,
-					 __u32 offset, __u32 byte_sz);
-
 struct btf_dedup_opts {
 	unsigned int dedup_table_size;
 	bool dont_resolve_fwds;
@@ -162,10 +143,8 @@ struct btf_dump_emit_type_decl_opts {
 	 * necessary indentation already
 	 */
 	int indent_level;
-	/* strip all the const/volatile/restrict mods */
-	bool strip_mods;
 };
-#define btf_dump_emit_type_decl_opts__last_field strip_mods
+#define btf_dump_emit_type_decl_opts__last_field indent_level

 LIBBPF_API int
 btf_dump__emit_type_decl(struct btf_dump *d, __u32 id,
@@ -189,11 +168,6 @@ static inline bool btf_kflag(const struct btf_type *t)
 	return BTF_INFO_KFLAG(t->info);
 }

-static inline bool btf_is_void(const struct btf_type *t)
-{
-	return btf_kind(t) == BTF_KIND_UNKN;
-}
-
 static inline bool btf_is_int(const struct btf_type *t)
 {
 	return btf_kind(t) == BTF_KIND_INT;
--- a/src/btf_dump.c
+++ b/src/btf_dump.c
@@ -13,12 +13,14 @@
 #include <errno.h>
 #include <linux/err.h>
 #include <linux/btf.h>
-#include <linux/kernel.h>
 #include "btf.h"
 #include "hashmap.h"
 #include "libbpf.h"
 #include "libbpf_internal.h"

+/* make sure libbpf doesn't use kernel-only integer typedefs */
+#pragma GCC poison u8 u16 u32 u64 s8 s16 s32 s64
+
 static const char PREFIXES[] = "\t\t\t\t\t\t\t\t\t\t\t\t\t";
 static const size_t PREFIX_CNT = sizeof(PREFIXES) - 1;

@@ -58,16 +60,11 @@ struct btf_dump {
 	const struct btf_ext *btf_ext;
 	btf_dump_printf_fn_t printf_fn;
 	struct btf_dump_opts opts;
-	int ptr_sz;
-	bool strip_mods;
-	int last_id;

 	/* per-type auxiliary state */
 	struct btf_dump_type_aux_state *type_states;
-	size_t type_states_cap;
 	/* per-type optional cached unique name, must be freed, if present */
 	const char **cached_names;
-	size_t cached_names_cap;

 	/* topo-sorted list of dependent type definitions */
 	__u32 *emit_queue;
@@ -93,7 +90,14 @@ struct btf_dump {

 static size_t str_hash_fn(const void *key, void *ctx)
 {
-	return str_hash(key);
+	const char *s = key;
+	size_t h = 0;
+
+	while (*s) {
+		h = h * 31 + *s;
+		s++;
+	}
+	return h;
 }

 static bool str_equal_fn(const void *a, const void *b, void *ctx)
@@ -116,7 +120,6 @@ 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);

 struct btf_dump *btf_dump__new(const struct btf *btf,
 			       const struct btf_ext *btf_ext,
@@ -134,7 +137,6 @@ struct btf_dump *btf_dump__new(const struct btf *btf,
 	d->btf_ext = btf_ext;
 	d->printf_fn = printf_fn;
 	d->opts.ctx = opts ? opts->ctx : NULL;
-	d->ptr_sz = btf__pointer_size(btf) ? : sizeof(void *);

 	d->type_names = hashmap__new(str_hash_fn, str_equal_fn, NULL);
 	if (IS_ERR(d->type_names)) {
@@ -148,8 +150,25 @@ struct btf_dump *btf_dump__new(const struct btf *btf,
 		d->ident_names = NULL;
 		goto err;
 	}
+	d->type_states = calloc(1 + btf__get_nr_types(d->btf),
+				sizeof(d->type_states[0]));
+	if (!d->type_states) {
+		err = -ENOMEM;
+		goto err;
+	}
+	d->cached_names = calloc(1 + btf__get_nr_types(d->btf),
+				 sizeof(d->cached_names[0]));
+	if (!d->cached_names) {
+		err = -ENOMEM;
+		goto err;
+	}

-	err = btf_dump_resize(d);
+	/* VOID is special */
+	d->type_states[0].order_state = ORDERED;
+	d->type_states[0].emit_state = EMITTED;
+
+	/* eagerly determine referenced types for anon enums */
+	err = btf_dump_mark_referenced(d);
 	if (err)
 		goto err;

@@ -159,46 +178,17 @@ err:
 	return ERR_PTR(err);
 }

-static int btf_dump_resize(struct btf_dump *d)
-{
-	int err, last_id = btf__get_nr_types(d->btf);
-
-	if (last_id <= d->last_id)
-		return 0;
-
-	if (btf_ensure_mem((void **)&d->type_states, &d->type_states_cap,
-			   sizeof(*d->type_states), last_id + 1))
-		return -ENOMEM;
-	if (btf_ensure_mem((void **)&d->cached_names, &d->cached_names_cap,
-			   sizeof(*d->cached_names), last_id + 1))
-		return -ENOMEM;
-
-	if (d->last_id == 0) {
-		/* VOID is special */
-		d->type_states[0].order_state = ORDERED;
-		d->type_states[0].emit_state = EMITTED;
-	}
-
-	/* eagerly determine referenced types for anon enums */
-	err = btf_dump_mark_referenced(d);
-	if (err)
-		return err;
-
-	d->last_id = last_id;
-	return 0;
-}
-
 void btf_dump__free(struct btf_dump *d)
 {
-	int i;
+	int i, cnt;

-	if (IS_ERR_OR_NULL(d))
+	if (!d)
 		return;

 	free(d->type_states);
 	if (d->cached_names) {
 		/* any set cached name is owned by us and should be freed */
-		for (i = 0; i <= d->last_id; i++) {
+		for (i = 0, cnt = btf__get_nr_types(d->btf); i <= cnt; i++) {
 			if (d->cached_names[i])
 				free((void *)d->cached_names[i]);
 		}
@@ -238,10 +228,6 @@ int btf_dump__dump_type(struct btf_dump *d, __u32 id)
 	if (id > btf__get_nr_types(d->btf))
 		return -EINVAL;

-	err = btf_dump_resize(d);
-	if (err)
-		return err;
-
 	d->emit_queue_cnt = 0;
 	err = btf_dump_order_type(d, id, false);
 	if (err < 0)
@@ -271,7 +257,7 @@ static int btf_dump_mark_referenced(struct btf_dump *d)
 	const struct btf_type *t;
 	__u16 vlen;

-	for (i = d->last_id + 1; i <= n; i++) {
+	for (i = 1; i <= n; i++) {
 		t = btf__type_by_id(d->btf, i);
 		vlen = btf_vlen(t);

@@ -326,7 +312,6 @@ static int btf_dump_mark_referenced(struct btf_dump *d)
 	}
 	return 0;
 }
-
 static int btf_dump_add_emit_queue_id(struct btf_dump *d, __u32 id)
 {
 	__u32 *new_queue;
@@ -334,7 +319,8 @@ static int btf_dump_add_emit_queue_id(struct btf_dump *d, __u32 id)

 	if (d->emit_queue_cnt >= d->emit_queue_cap) {
 		new_cap = max(16, d->emit_queue_cap * 3 / 2);
-		new_queue = libbpf_reallocarray(d->emit_queue, new_cap, sizeof(new_queue[0]));
+		new_queue = realloc(d->emit_queue,
+				    new_cap * sizeof(new_queue[0]));
 		if (!new_queue)
 			return -ENOMEM;
 		d->emit_queue = new_queue;
@@ -562,9 +548,6 @@ static int btf_dump_order_type(struct btf_dump *d, __u32 id, bool through_ptr)
 	}
 }

-static void btf_dump_emit_missing_aliases(struct btf_dump *d, __u32 id,
-					  const struct btf_type *t);
-
 static void btf_dump_emit_struct_fwd(struct btf_dump *d, __u32 id,
 				     const struct btf_type *t);
 static void btf_dump_emit_struct_def(struct btf_dump *d, __u32 id,
@@ -687,9 +670,6 @@ static void btf_dump_emit_type(struct btf_dump *d, __u32 id, __u32 cont_id)

 	switch (kind) {
 	case BTF_KIND_INT:
-		/* Emit type alias definitions if necessary */
-		btf_dump_emit_missing_aliases(d, id, t);
-
 		tstate->emit_state = EMITTED;
 		break;
 	case BTF_KIND_ENUM:
@@ -816,7 +796,7 @@ static void btf_dump_emit_bit_padding(const struct btf_dump *d,
 				      int align, int lvl)
 {
 	int off_diff = m_off - cur_off;
-	int ptr_bits = d->ptr_sz * 8;
+	int ptr_bits = sizeof(void *) * 8;

 	if (off_diff <= 0)
 		/* no gap */
@@ -889,7 +869,7 @@ static void btf_dump_emit_struct_def(struct btf_dump *d,
 			btf_dump_printf(d, ": %d", m_sz);
 			off = m_off + m_sz;
 		} else {
-			m_sz = max((__s64)0, btf__resolve_size(d->btf, m->type));
+			m_sz = max(0, btf__resolve_size(d->btf, m->type));
 			off = m_off + m_sz * 8;
 		}
 		btf_dump_printf(d, ";");
@@ -909,32 +889,6 @@ static void btf_dump_emit_struct_def(struct btf_dump *d,
 		btf_dump_printf(d, " __attribute__((packed))");
 }

-static const char *missing_base_types[][2] = {
-	/*
-	 * GCC emits typedefs to its internal __PolyX_t types when compiling Arm
-	 * SIMD intrinsics. Alias them to standard base types.
-	 */
-	{ "__Poly8_t",		"unsigned char" },
-	{ "__Poly16_t",		"unsigned short" },
-	{ "__Poly64_t",		"unsigned long long" },
-	{ "__Poly128_t",	"unsigned __int128" },
-};
-
-static void btf_dump_emit_missing_aliases(struct btf_dump *d, __u32 id,
-					  const struct btf_type *t)
-{
-	const char *name = btf_dump_type_name(d, id);
-	int i;
-
-	for (i = 0; i < ARRAY_SIZE(missing_base_types); i++) {
-		if (strcmp(name, missing_base_types[i][0]) == 0) {
-			btf_dump_printf(d, "typedef %s %s;\n\n",
-					missing_base_types[i][1], name);
-			break;
-		}
-	}
-}
-
 static void btf_dump_emit_enum_fwd(struct btf_dump *d, __u32 id,
 				   const struct btf_type *t)
 {
@@ -1013,7 +967,8 @@ static int btf_dump_push_decl_stack_id(struct btf_dump *d, __u32 id)

 	if (d->decl_stack_cnt >= d->decl_stack_cap) {
 		new_cap = max(16, d->decl_stack_cap * 3 / 2);
-		new_stack = libbpf_reallocarray(d->decl_stack, new_cap, sizeof(new_stack[0]));
+		new_stack = realloc(d->decl_stack,
+				    new_cap * sizeof(new_stack[0]));
 		if (!new_stack)
 			return -ENOMEM;
 		d->decl_stack = new_stack;
@@ -1070,20 +1025,14 @@ int btf_dump__emit_type_decl(struct btf_dump *d, __u32 id,
 			     const struct btf_dump_emit_type_decl_opts *opts)
 {
 	const char *fname;
-	int lvl, err;
+	int lvl;

 	if (!OPTS_VALID(opts, btf_dump_emit_type_decl_opts))
 		return -EINVAL;

-	err = btf_dump_resize(d);
-	if (err)
-		return -EINVAL;
-
 	fname = OPTS_GET(opts, field_name, "");
 	lvl = OPTS_GET(opts, indent_level, 0);
-	d->strip_mods = OPTS_GET(opts, strip_mods, false);
 	btf_dump_emit_type_decl(d, id, fname, lvl);
-	d->strip_mods = false;
 	return 0;
 }

@@ -1096,10 +1045,6 @@ static void btf_dump_emit_type_decl(struct btf_dump *d, __u32 id,

 	stack_start = d->decl_stack_cnt;
 	for (;;) {
-		t = btf__type_by_id(d->btf, id);
-		if (d->strip_mods && btf_is_mod(t))
-			goto skip_mod;
-
 		err = btf_dump_push_decl_stack_id(d, id);
 		if (err < 0) {
 			/*
@@ -1111,11 +1056,12 @@ static void btf_dump_emit_type_decl(struct btf_dump *d, __u32 id,
 			d->decl_stack_cnt = stack_start;
 			return;
 		}
-skip_mod:
+
 		/* VOID */
 		if (id == 0)
 			break;

+		t = btf__type_by_id(d->btf, id);
 		switch (btf_kind(t)) {
 		case BTF_KIND_PTR:
 		case BTF_KIND_VOLATILE:
--- a/src/hashmap.c
+++ b/src/hashmap.c
@@ -15,9 +15,6 @@
 /* make sure libbpf doesn't use kernel-only integer typedefs */
 #pragma GCC poison u8 u16 u32 u64 s8 s16 s32 s64

-/* prevent accidental re-addition of reallocarray() */
-#pragma GCC poison reallocarray
-
 /* start with 4 buckets */
 #define HASHMAP_MIN_CAP_BITS 2

--- a/src/hashmap.h
+++ b/src/hashmap.h
@@ -11,30 +11,14 @@
 #include <stdbool.h>
 #include <stddef.h>
 #include <limits.h>
+#ifndef __WORDSIZE
+#define __WORDSIZE (__SIZEOF_LONG__ * 8)
+#endif

 static inline size_t hash_bits(size_t h, int bits)
 {
 	/* shuffle bits and return requested number of upper bits */
-#if (__SIZEOF_SIZE_T__ == __SIZEOF_LONG_LONG__)
-	/* LP64 case */
-	return (h * 11400714819323198485llu) >> (__SIZEOF_LONG_LONG__ * 8 - bits);
-#elif (__SIZEOF_SIZE_T__ <= __SIZEOF_LONG__)
-	return (h * 2654435769lu) >> (__SIZEOF_LONG__ * 8 - bits);
-#else
-#	error "Unsupported size_t size"
-#endif
-}
-
-/* generic C-string hashing function */
-static inline size_t str_hash(const char *s)
-{
-	size_t h = 0;
-
-	while (*s) {
-		h = h * 31 + *s;
-		s++;
-	}
-	return h;
+	return (h * 11400714819323198485llu) >> (__WORDSIZE - bits);
 }

 typedef size_t (*hashmap_hash_fn)(const void *key, void *ctx);
--- a/src/libbpf.c
+++ b/src/libbpf.c
--- a/src/libbpf.h
+++ b/src/libbpf.h
@@ -198,11 +198,8 @@ 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);
+LIBBPF_API const char *bpf_program__title(const struct bpf_program *prog,
+					  bool needs_copy);

 /* returns program size in bytes */
 LIBBPF_API size_t bpf_program__size(const struct bpf_program *prog);
@@ -230,7 +227,6 @@ LIBBPF_API int bpf_link__unpin(struct bpf_link *link);
 LIBBPF_API int bpf_link__update_program(struct bpf_link *link,
 					struct bpf_program *prog);
 LIBBPF_API void bpf_link__disconnect(struct bpf_link *link);
-LIBBPF_API int bpf_link__detach(struct bpf_link *link);
 LIBBPF_API int bpf_link__destroy(struct bpf_link *link);

 LIBBPF_API struct bpf_link *
@@ -259,11 +255,6 @@ LIBBPF_API struct bpf_link *
 bpf_program__attach_cgroup(struct bpf_program *prog, int cgroup_fd);
 LIBBPF_API struct bpf_link *
 bpf_program__attach_netns(struct bpf_program *prog, int netns_fd);
-LIBBPF_API struct bpf_link *
-bpf_program__attach_xdp(struct bpf_program *prog, int ifindex);
-LIBBPF_API struct bpf_link *
-bpf_program__attach_freplace(struct bpf_program *prog,
-			     int target_fd, const char *attach_func_name);

 struct bpf_map;

@@ -271,10 +262,8 @@ LIBBPF_API struct bpf_link *bpf_map__attach_struct_ops(struct bpf_map *map);

 struct bpf_iter_attach_opts {
 	size_t sz; /* size of this struct for forward/backward compatibility */
-	union bpf_iter_link_info *link_info;
-	__u32 link_info_len;
 };
-#define bpf_iter_attach_opts__last_field link_info_len
+#define bpf_iter_attach_opts__last_field sz

 LIBBPF_API struct bpf_link *
 bpf_program__attach_iter(struct bpf_program *prog,
@@ -359,7 +348,6 @@ LIBBPF_API int bpf_program__set_perf_event(struct bpf_program *prog);
 LIBBPF_API int bpf_program__set_tracing(struct bpf_program *prog);
 LIBBPF_API int bpf_program__set_struct_ops(struct bpf_program *prog);
 LIBBPF_API int bpf_program__set_extension(struct bpf_program *prog);
-LIBBPF_API int bpf_program__set_sk_lookup(struct bpf_program *prog);

 LIBBPF_API enum bpf_prog_type bpf_program__get_type(struct bpf_program *prog);
 LIBBPF_API void bpf_program__set_type(struct bpf_program *prog,
@@ -387,7 +375,6 @@ LIBBPF_API bool bpf_program__is_perf_event(const struct bpf_program *prog);
 LIBBPF_API bool bpf_program__is_tracing(const struct bpf_program *prog);
 LIBBPF_API bool bpf_program__is_struct_ops(const struct bpf_program *prog);
 LIBBPF_API bool bpf_program__is_extension(const struct bpf_program *prog);
-LIBBPF_API bool bpf_program__is_sk_lookup(const struct bpf_program *prog);

 /*
 * No need for __attribute__((packed)), all members of 'bpf_map_def'
@@ -431,38 +418,11 @@ bpf_map__next(const struct bpf_map *map, const struct bpf_object *obj);
 LIBBPF_API struct bpf_map *
 bpf_map__prev(const struct bpf_map *map, const struct bpf_object *obj);

-/* get/set map FD */
 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 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 */
-LIBBPF_API enum bpf_map_type bpf_map__type(const struct bpf_map *map);
-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_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);
-/* get/set map NUMA node */
-LIBBPF_API __u32 bpf_map__numa_node(const struct bpf_map *map);
-LIBBPF_API int bpf_map__set_numa_node(struct bpf_map *map, __u32 numa_node);
-/* get/set map key size */
-LIBBPF_API __u32 bpf_map__key_size(const struct bpf_map *map);
-LIBBPF_API int bpf_map__set_key_size(struct bpf_map *map, __u32 size);
-/* get/set map value size */
-LIBBPF_API __u32 bpf_map__value_size(const struct bpf_map *map);
-LIBBPF_API int bpf_map__set_value_size(struct bpf_map *map, __u32 size);
-/* get map key/value BTF type IDs */
 LIBBPF_API __u32 bpf_map__btf_key_type_id(const struct bpf_map *map);
 LIBBPF_API __u32 bpf_map__btf_value_type_id(const struct bpf_map *map);
-/* get/set map if_index */
-LIBBPF_API __u32 bpf_map__ifindex(const struct bpf_map *map);
-LIBBPF_API int bpf_map__set_ifindex(struct bpf_map *map, __u32 ifindex);

 typedef void (*bpf_map_clear_priv_t)(struct bpf_map *, void *);
 LIBBPF_API int bpf_map__set_priv(struct bpf_map *map, void *priv,
@@ -470,8 +430,11 @@ LIBBPF_API int bpf_map__set_priv(struct bpf_map *map, void *priv,
 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 int bpf_map__reuse_fd(struct bpf_map *map, int fd);
+LIBBPF_API int bpf_map__resize(struct bpf_map *map, __u32 max_entries);
 LIBBPF_API bool bpf_map__is_offload_neutral(const struct bpf_map *map);
 LIBBPF_API bool bpf_map__is_internal(const struct bpf_map *map);
+LIBBPF_API void bpf_map__set_ifindex(struct bpf_map *map, __u32 ifindex);
 LIBBPF_API int bpf_map__set_pin_path(struct bpf_map *map, const char *path);
 LIBBPF_API const char *bpf_map__get_pin_path(const struct bpf_map *map);
 LIBBPF_API bool bpf_map__is_pinned(const struct bpf_map *map);
@@ -592,12 +555,8 @@ perf_buffer__new_raw(int map_fd, size_t page_cnt,
 		     const struct perf_buffer_raw_opts *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);
 LIBBPF_API int perf_buffer__consume(struct perf_buffer *pb);
-LIBBPF_API int perf_buffer__consume_buffer(struct perf_buffer *pb, size_t buf_idx);
-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,
--- a/src/libbpf.map
+++ b/src/libbpf.map
@@ -270,70 +270,3 @@ LIBBPF_0.0.9 {
 		ring_buffer__new;
 		ring_buffer__poll;
 } LIBBPF_0.0.8;
-
-LIBBPF_0.1.0 {
-	global:
-		bpf_link__detach;
-		bpf_link_detach;
-		bpf_map__ifindex;
-		bpf_map__key_size;
-		bpf_map__map_flags;
-		bpf_map__max_entries;
-		bpf_map__numa_node;
-		bpf_map__set_key_size;
-		bpf_map__set_map_flags;
-		bpf_map__set_max_entries;
-		bpf_map__set_numa_node;
-		bpf_map__set_type;
-		bpf_map__set_value_size;
-		bpf_map__type;
-		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;
-		btf__set_fd;
-		btf__set_pointer_size;
-} LIBBPF_0.0.9;
-
-LIBBPF_0.2.0 {
-	global:
-		bpf_prog_bind_map;
-		bpf_prog_test_run_opts;
-		bpf_program__attach_freplace;
-		bpf_program__section_name;
-		btf__add_array;
-		btf__add_const;
-		btf__add_enum;
-		btf__add_enum_value;
-		btf__add_datasec;
-		btf__add_datasec_var_info;
-		btf__add_field;
-		btf__add_func;
-		btf__add_func_param;
-		btf__add_func_proto;
-		btf__add_fwd;
-		btf__add_int;
-		btf__add_ptr;
-		btf__add_restrict;
-		btf__add_str;
-		btf__add_struct;
-		btf__add_typedef;
-		btf__add_union;
-		btf__add_var;
-		btf__add_volatile;
-		btf__endianness;
-		btf__find_str;
-		btf__new_empty;
-		btf__set_endianness;
-		btf__str_by_offset;
-		perf_buffer__buffer_cnt;
-		perf_buffer__buffer_fd;
-		perf_buffer__epoll_fd;
-		perf_buffer__consume_buffer;
-		xsk_socket__create_shared;
-} LIBBPF_0.1.0;
--- a/src/libbpf_common.h
+++ b/src/libbpf_common.h
@@ -15,8 +15,6 @@
 #define LIBBPF_API __attribute__((visibility("default")))
 #endif

-#define LIBBPF_DEPRECATED(msg) __attribute__((deprecated(msg)))
-
 /* Helper macro to declare and initialize libbpf options struct
 *
 * This dance with uninitialized declaration, followed by memset to zero,
--- a/src/libbpf_internal.h
+++ b/src/libbpf_internal.h
@@ -9,15 +9,6 @@
 #ifndef __LIBBPF_LIBBPF_INTERNAL_H
 #define __LIBBPF_LIBBPF_INTERNAL_H

-#include <stdlib.h>
-#include <limits.h>
-
-/* make sure libbpf doesn't use kernel-only integer typedefs */
-#pragma GCC poison u8 u16 u32 u64 s8 s16 s32 s64
-
-/* prevent accidental re-addition of reallocarray() */
-#pragma GCC poison reallocarray
-
 #include "libbpf.h"

 #define BTF_INFO_ENC(kind, kind_flag, vlen) \
@@ -32,12 +23,6 @@
 #define BTF_PARAM_ENC(name, type) (name), (type)
 #define BTF_VAR_SECINFO_ENC(type, offset, size) (type), (offset), (size)

-#ifndef likely
-#define likely(x) __builtin_expect(!!(x), 1)
-#endif
-#ifndef unlikely
-#define unlikely(x) __builtin_expect(!!(x), 0)
-#endif
 #ifndef min
 # define min(x, y) ((x) < (y) ? (x) : (y))
 #endif
@@ -78,37 +63,6 @@ do {				\
 #define pr_info(fmt, ...)	__pr(LIBBPF_INFO, fmt, ##__VA_ARGS__)
 #define pr_debug(fmt, ...)	__pr(LIBBPF_DEBUG, fmt, ##__VA_ARGS__)

-#ifndef __has_builtin
-#define __has_builtin(x) 0
-#endif
-/*
- * Re-implement glibc's reallocarray() for libbpf internal-only use.
- * reallocarray(), unfortunately, is not available in all versions of glibc,
- * so requires extra feature detection and using reallocarray() stub from
- * <tools/libc_compat.h> and COMPAT_NEED_REALLOCARRAY. All this complicates
- * build of libbpf unnecessarily and is just a maintenance burden. Instead,
- * it's trivial to implement libbpf-specific internal version and use it
- * throughout libbpf.
- */
-static inline void *libbpf_reallocarray(void *ptr, size_t nmemb, size_t size)
-{
-	size_t total;
-
-#if __has_builtin(__builtin_mul_overflow)
-	if (unlikely(__builtin_mul_overflow(nmemb, size, &total)))
-		return NULL;
-#else
-	if (size == 0 || nmemb > ULONG_MAX / size)
-		return NULL;
-	total = nmemb * size;
-#endif
-	return realloc(ptr, total);
-}
-
-void *btf_add_mem(void **data, size_t *cap_cnt, size_t elem_sz,
-		  size_t cur_cnt, size_t max_cnt, size_t add_cnt);
-int btf_ensure_mem(void **data, size_t *cap_cnt, size_t elem_sz, size_t need_cnt);
-
 static inline bool libbpf_validate_opts(const char *opts,
 					size_t opts_sz, size_t user_sz,
 					const char *type_name)
@@ -140,11 +94,6 @@ static inline bool libbpf_validate_opts(const char *opts,
 	((opts) && opts->sz >= offsetofend(typeof(*(opts)), field))
 #define OPTS_GET(opts, field, fallback_value) \
 	(OPTS_HAS(opts, field) ? (opts)->field : fallback_value)
-#define OPTS_SET(opts, field, value)		\
-	do {					\
-		if (OPTS_HAS(opts, field))	\
-			(opts)->field = value;	\
-	} while (0)

 int parse_cpu_mask_str(const char *s, bool **mask, int *mask_sz);
 int parse_cpu_mask_file(const char *fcpu, bool **mask, int *mask_sz);
@@ -156,6 +105,18 @@ int bpf_object__section_size(const struct bpf_object *obj, const char *name,
 int bpf_object__variable_offset(const struct bpf_object *obj, const char *name,
 				__u32 *off);

+struct nlattr;
+typedef int (*libbpf_dump_nlmsg_t)(void *cookie, void *msg, struct nlattr **tb);
+int libbpf_netlink_open(unsigned int *nl_pid);
+int libbpf_nl_get_link(int sock, unsigned int nl_pid,
+		       libbpf_dump_nlmsg_t dump_link_nlmsg, void *cookie);
+int libbpf_nl_get_class(int sock, unsigned int nl_pid, int ifindex,
+			libbpf_dump_nlmsg_t dump_class_nlmsg, void *cookie);
+int libbpf_nl_get_qdisc(int sock, unsigned int nl_pid, int ifindex,
+			libbpf_dump_nlmsg_t dump_qdisc_nlmsg, void *cookie);
+int libbpf_nl_get_filter(int sock, unsigned int nl_pid, int ifindex, int handle,
+			 libbpf_dump_nlmsg_t dump_filter_nlmsg, void *cookie);
+
 struct btf_ext_info {
 	/*
 	 * info points to the individual info section (e.g. func_info and
@@ -177,44 +138,6 @@ struct btf_ext_info {
 	     i < (sec)->num_info;					\
 	     i++, rec = (void *)rec + (seg)->rec_size)

-/*
- * The .BTF.ext ELF section layout defined as
- *   struct btf_ext_header
- *   func_info subsection
- *
- * The func_info subsection layout:
- *   record size for struct bpf_func_info in the func_info subsection
- *   struct btf_sec_func_info for section #1
- *   a list of bpf_func_info records for section #1
- *     where struct bpf_func_info mimics one in include/uapi/linux/bpf.h
- *     but may not be identical
- *   struct btf_sec_func_info for section #2
- *   a list of bpf_func_info records for section #2
- *   ......
- *
- * Note that the bpf_func_info record size in .BTF.ext may not
- * be the same as the one defined in include/uapi/linux/bpf.h.
- * The loader should ensure that record_size meets minimum
- * requirement and pass the record as is to the kernel. The
- * kernel will handle the func_info properly based on its contents.
- */
-struct btf_ext_header {
-	__u16	magic;
-	__u8	version;
-	__u8	flags;
-	__u32	hdr_len;
-
-	/* All offsets are in bytes relative to the end of this header */
-	__u32	func_info_off;
-	__u32	func_info_len;
-	__u32	line_info_off;
-	__u32	line_info_len;
-
-	/* optional part of .BTF.ext header */
-	__u32	core_relo_off;
-	__u32	core_relo_len;
-};
-
 struct btf_ext {
 	union {
 		struct btf_ext_header *hdr;
@@ -222,7 +145,7 @@ struct btf_ext {
 	};
 	struct btf_ext_info func_info;
 	struct btf_ext_info line_info;
-	struct btf_ext_info core_relo_info;
+	struct btf_ext_info field_reloc_info;
 	__u32 data_size;
 };

@@ -247,40 +170,32 @@ struct bpf_line_info_min {
 	__u32	line_col;
 };

-/* bpf_core_relo_kind encodes which aspect of captured field/type/enum value
- * has to be adjusted by relocations.
+/* bpf_field_info_kind encodes which aspect of captured field has to be
+ * adjusted by relocations. Currently supported values are:
+ *   - BPF_FIELD_BYTE_OFFSET: field offset (in bytes);
+ *   - BPF_FIELD_EXISTS: field existence (1, if field exists; 0, otherwise);
 */
-enum bpf_core_relo_kind {
+enum bpf_field_info_kind {
 	BPF_FIELD_BYTE_OFFSET = 0,	/* field byte offset */
-	BPF_FIELD_BYTE_SIZE = 1,	/* field size in bytes */
+	BPF_FIELD_BYTE_SIZE = 1,
 	BPF_FIELD_EXISTS = 2,		/* field existence in target kernel */
-	BPF_FIELD_SIGNED = 3,		/* field signedness (0 - unsigned, 1 - signed) */
-	BPF_FIELD_LSHIFT_U64 = 4,	/* bitfield-specific left bitshift */
-	BPF_FIELD_RSHIFT_U64 = 5,	/* bitfield-specific right bitshift */
-	BPF_TYPE_ID_LOCAL = 6,		/* type ID in local BPF object */
-	BPF_TYPE_ID_TARGET = 7,		/* type ID in target kernel */
-	BPF_TYPE_EXISTS = 8,		/* type existence in target kernel */
-	BPF_TYPE_SIZE = 9,		/* type size in bytes */
-	BPF_ENUMVAL_EXISTS = 10,	/* enum value existence in target kernel */
-	BPF_ENUMVAL_VALUE = 11,		/* enum value integer value */
+	BPF_FIELD_SIGNED = 3,
+	BPF_FIELD_LSHIFT_U64 = 4,
+	BPF_FIELD_RSHIFT_U64 = 5,
 };

-/* The minimum bpf_core_relo checked by the loader
+/* The minimum bpf_field_reloc checked by the loader
 *
- * CO-RE relocation captures the following data:
+ * Field relocation captures the following data:
 * - insn_off - instruction offset (in bytes) within a BPF program that needs
 *   its insn->imm field to be relocated with actual field info;
 * - type_id - BTF type ID of the "root" (containing) entity of a relocatable
- *   type or field;
+ *   field;
 * - access_str_off - offset into corresponding .BTF string section. String
- *   interpretation depends on specific relocation kind:
- *     - for field-based relocations, string encodes an accessed field using
- *     a sequence of field and array indices, separated by colon (:). It's
- *     conceptually very close to LLVM's getelementptr ([0]) instruction's
- *     arguments for identifying offset to a field.
- *     - for type-based relocations, strings is expected to be just "0";
- *     - for enum value-based relocations, string contains an index of enum
- *     value within its enum type;
+ *   itself encodes an accessed field using a sequence of field and array
+ *   indicies, separated by colon (:). It's conceptually very close to LLVM's
+ *   getelementptr ([0]) instruction's arguments for identifying offset to 
+ *   a field.
 *
 * Example to provide a better feel.
 *
@@ -311,11 +226,11 @@ enum bpf_core_relo_kind {
 *
 *   [0] https://llvm.org/docs/LangRef.html#getelementptr-instruction
 */
-struct bpf_core_relo {
+struct bpf_field_reloc {
 	__u32   insn_off;
 	__u32   type_id;
 	__u32   access_str_off;
-	enum bpf_core_relo_kind kind;
+	enum bpf_field_info_kind kind;
 };

 #endif /* __LIBBPF_LIBBPF_INTERNAL_H */
--- a/src/libbpf_probes.c
+++ b/src/libbpf_probes.c
@@ -17,6 +17,9 @@
 #include "libbpf.h"
 #include "libbpf_internal.h"

+/* make sure libbpf doesn't use kernel-only integer typedefs */
+#pragma GCC poison u8 u16 u32 u64 s8 s16 s32 s64
+
 static bool grep(const char *buffer, const char *pattern)
 {
 	return !!strstr(buffer, pattern);
@@ -75,9 +78,6 @@ probe_load(enum bpf_prog_type prog_type, const struct bpf_insn *insns,
 	case BPF_PROG_TYPE_CGROUP_SOCK_ADDR:
 		xattr.expected_attach_type = BPF_CGROUP_INET4_CONNECT;
 		break;
-	case BPF_PROG_TYPE_SK_LOOKUP:
-		xattr.expected_attach_type = BPF_SK_LOOKUP;
-		break;
 	case BPF_PROG_TYPE_KPROBE:
 		xattr.kern_version = get_kernel_version();
 		break;
@@ -170,7 +170,7 @@ int libbpf__load_raw_btf(const char *raw_types, size_t types_len,
 	return btf_fd;
 }

-static int load_local_storage_btf(void)
+static int load_sk_storage_btf(void)
 {
 	const char strs[] = "\0bpf_spin_lock\0val\0cnt\0l";
 	/* struct bpf_spin_lock {
@@ -229,13 +229,12 @@ bool bpf_probe_map_type(enum bpf_map_type map_type, __u32 ifindex)
 		key_size	= 0;
 		break;
 	case BPF_MAP_TYPE_SK_STORAGE:
-	case BPF_MAP_TYPE_INODE_STORAGE:
 		btf_key_type_id = 1;
 		btf_value_type_id = 3;
 		value_size = 8;
 		max_entries = 0;
 		map_flags = BPF_F_NO_PREALLOC;
-		btf_fd = load_local_storage_btf();
+		btf_fd = load_sk_storage_btf();
 		if (btf_fd < 0)
 			return false;
 		break;
--- a/src/netlink.c
+++ b/src/netlink.c
@@ -15,12 +15,13 @@
 #include "libbpf_internal.h"
 #include "nlattr.h"

+/* make sure libbpf doesn't use kernel-only integer typedefs */
+#pragma GCC poison u8 u16 u32 u64 s8 s16 s32 s64
+
 #ifndef SOL_NETLINK
 #define SOL_NETLINK 270
 #endif

-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);

@@ -30,7 +31,7 @@ struct xdp_id_md {
 	struct xdp_link_info info;
 };

-static int libbpf_netlink_open(__u32 *nl_pid)
+int libbpf_netlink_open(__u32 *nl_pid)
 {
 	struct sockaddr_nl sa;
 	socklen_t addrlen;
@@ -282,9 +283,6 @@ static int get_xdp_info(void *cookie, void *msg, struct nlattr **tb)
 	return 0;
 }

-static int libbpf_nl_get_link(int sock, unsigned int nl_pid,
-			      libbpf_dump_nlmsg_t dump_link_nlmsg, void *cookie);
-
 int bpf_get_link_xdp_info(int ifindex, struct xdp_link_info *info,
 			  size_t info_size, __u32 flags)
 {
@@ -370,3 +368,121 @@ int libbpf_nl_get_link(int sock, unsigned int nl_pid,
 	return bpf_netlink_recv(sock, nl_pid, seq, __dump_link_nlmsg,
 				dump_link_nlmsg, cookie);
 }
+
+static int __dump_class_nlmsg(struct nlmsghdr *nlh,
+			      libbpf_dump_nlmsg_t dump_class_nlmsg,
+			      void *cookie)
+{
+	struct nlattr *tb[TCA_MAX + 1], *attr;
+	struct tcmsg *t = NLMSG_DATA(nlh);
+	int len;
+
+	len = nlh->nlmsg_len - NLMSG_LENGTH(sizeof(*t));
+	attr = (struct nlattr *) ((void *) t + NLMSG_ALIGN(sizeof(*t)));
+	if (libbpf_nla_parse(tb, TCA_MAX, attr, len, NULL) != 0)
+		return -LIBBPF_ERRNO__NLPARSE;
+
+	return dump_class_nlmsg(cookie, t, tb);
+}
+
+int libbpf_nl_get_class(int sock, unsigned int nl_pid, int ifindex,
+			libbpf_dump_nlmsg_t dump_class_nlmsg, void *cookie)
+{
+	struct {
+		struct nlmsghdr nlh;
+		struct tcmsg t;
+	} req = {
+		.nlh.nlmsg_len = NLMSG_LENGTH(sizeof(struct tcmsg)),
+		.nlh.nlmsg_type = RTM_GETTCLASS,
+		.nlh.nlmsg_flags = NLM_F_DUMP | NLM_F_REQUEST,
+		.t.tcm_family = AF_UNSPEC,
+		.t.tcm_ifindex = ifindex,
+	};
+	int seq = time(NULL);
+
+	req.nlh.nlmsg_seq = seq;
+	if (send(sock, &req, req.nlh.nlmsg_len, 0) < 0)
+		return -errno;
+
+	return bpf_netlink_recv(sock, nl_pid, seq, __dump_class_nlmsg,
+				dump_class_nlmsg, cookie);
+}
+
+static int __dump_qdisc_nlmsg(struct nlmsghdr *nlh,
+			      libbpf_dump_nlmsg_t dump_qdisc_nlmsg,
+			      void *cookie)
+{
+	struct nlattr *tb[TCA_MAX + 1], *attr;
+	struct tcmsg *t = NLMSG_DATA(nlh);
+	int len;
+
+	len = nlh->nlmsg_len - NLMSG_LENGTH(sizeof(*t));
+	attr = (struct nlattr *) ((void *) t + NLMSG_ALIGN(sizeof(*t)));
+	if (libbpf_nla_parse(tb, TCA_MAX, attr, len, NULL) != 0)
+		return -LIBBPF_ERRNO__NLPARSE;
+
+	return dump_qdisc_nlmsg(cookie, t, tb);
+}
+
+int libbpf_nl_get_qdisc(int sock, unsigned int nl_pid, int ifindex,
+			libbpf_dump_nlmsg_t dump_qdisc_nlmsg, void *cookie)
+{
+	struct {
+		struct nlmsghdr nlh;
+		struct tcmsg t;
+	} req = {
+		.nlh.nlmsg_len = NLMSG_LENGTH(sizeof(struct tcmsg)),
+		.nlh.nlmsg_type = RTM_GETQDISC,
+		.nlh.nlmsg_flags = NLM_F_DUMP | NLM_F_REQUEST,
+		.t.tcm_family = AF_UNSPEC,
+		.t.tcm_ifindex = ifindex,
+	};
+	int seq = time(NULL);
+
+	req.nlh.nlmsg_seq = seq;
+	if (send(sock, &req, req.nlh.nlmsg_len, 0) < 0)
+		return -errno;
+
+	return bpf_netlink_recv(sock, nl_pid, seq, __dump_qdisc_nlmsg,
+				dump_qdisc_nlmsg, cookie);
+}
+
+static int __dump_filter_nlmsg(struct nlmsghdr *nlh,
+			       libbpf_dump_nlmsg_t dump_filter_nlmsg,
+			       void *cookie)
+{
+	struct nlattr *tb[TCA_MAX + 1], *attr;
+	struct tcmsg *t = NLMSG_DATA(nlh);
+	int len;
+
+	len = nlh->nlmsg_len - NLMSG_LENGTH(sizeof(*t));
+	attr = (struct nlattr *) ((void *) t + NLMSG_ALIGN(sizeof(*t)));
+	if (libbpf_nla_parse(tb, TCA_MAX, attr, len, NULL) != 0)
+		return -LIBBPF_ERRNO__NLPARSE;
+
+	return dump_filter_nlmsg(cookie, t, tb);
+}
+
+int libbpf_nl_get_filter(int sock, unsigned int nl_pid, int ifindex, int handle,
+			 libbpf_dump_nlmsg_t dump_filter_nlmsg, void *cookie)
+{
+	struct {
+		struct nlmsghdr nlh;
+		struct tcmsg t;
+	} req = {
+		.nlh.nlmsg_len = NLMSG_LENGTH(sizeof(struct tcmsg)),
+		.nlh.nlmsg_type = RTM_GETTFILTER,
+		.nlh.nlmsg_flags = NLM_F_DUMP | NLM_F_REQUEST,
+		.t.tcm_family = AF_UNSPEC,
+		.t.tcm_ifindex = ifindex,
+		.t.tcm_parent = handle,
+	};
+	int seq = time(NULL);
+
+	req.nlh.nlmsg_seq = seq;
+	if (send(sock, &req, req.nlh.nlmsg_len, 0) < 0)
+		return -errno;
+
+	return bpf_netlink_recv(sock, nl_pid, seq, __dump_filter_nlmsg,
+				dump_filter_nlmsg, cookie);
+}
--- a/src/nlattr.c
+++ b/src/nlattr.c
@@ -7,11 +7,14 @@
 */

 #include <errno.h>
-#include <string.h>
-#include <stdio.h>
-#include <linux/rtnetlink.h>
 #include "nlattr.h"
 #include "libbpf_internal.h"
+#include <linux/rtnetlink.h>
+#include <string.h>
+#include <stdio.h>
+
+/* make sure libbpf doesn't use kernel-only integer typedefs */
+#pragma GCC poison u8 u16 u32 u64 s8 s16 s32 s64

 static uint16_t nla_attr_minlen[LIBBPF_NLA_TYPE_MAX+1] = {
 	[LIBBPF_NLA_U8]		= sizeof(uint8_t),
--- a/src/ringbuf.c
+++ b/src/ringbuf.c
@@ -16,11 +16,15 @@
 #include <asm/barrier.h>
 #include <sys/mman.h>
 #include <sys/epoll.h>
+#include <tools/libc_compat.h>

 #include "libbpf.h"
 #include "libbpf_internal.h"
 #include "bpf.h"

+/* make sure libbpf doesn't use kernel-only integer typedefs */
+#pragma GCC poison u8 u16 u32 u64 s8 s16 s32 s64
+
 struct ring {
 	ring_buffer_sample_fn sample_cb;
 	void *ctx;
@@ -78,12 +82,12 @@ int ring_buffer__add(struct ring_buffer *rb, int map_fd,
 		return -EINVAL;
 	}

-	tmp = libbpf_reallocarray(rb->rings, rb->ring_cnt + 1, sizeof(*rb->rings));
+	tmp = reallocarray(rb->rings, rb->ring_cnt + 1, sizeof(*rb->rings));
 	if (!tmp)
 		return -ENOMEM;
 	rb->rings = tmp;

-	tmp = libbpf_reallocarray(rb->events, rb->ring_cnt + 1, sizeof(*rb->events));
+	tmp = reallocarray(rb->events, rb->ring_cnt + 1, sizeof(*rb->events));
 	if (!tmp)
 		return -ENOMEM;
 	rb->events = tmp;
--- a/src/xsk.c
+++ b/src/xsk.c
@@ -20,8 +20,6 @@
 #include <linux/if_ether.h>
 #include <linux/if_packet.h>
 #include <linux/if_xdp.h>
-#include <linux/kernel.h>
-#include <linux/list.h>
 #include <linux/sockios.h>
 #include <net/if.h>
 #include <sys/ioctl.h>
@@ -34,6 +32,9 @@
 #include "libbpf_internal.h"
 #include "xsk.h"

+/* make sure libbpf doesn't use kernel-only integer typedefs */
+#pragma GCC poison u8 u16 u32 u64 s8 s16 s32 s64
+
 #ifndef SOL_XDP
 #define SOL_XDP 283
 #endif
@@ -47,35 +48,26 @@
 #endif

 struct xsk_umem {
-	struct xsk_ring_prod *fill_save;
-	struct xsk_ring_cons *comp_save;
+	struct xsk_ring_prod *fill;
+	struct xsk_ring_cons *comp;
 	char *umem_area;
 	struct xsk_umem_config config;
 	int fd;
 	int refcount;
-	struct list_head ctx_list;
-};
-
-struct xsk_ctx {
-	struct xsk_ring_prod *fill;
-	struct xsk_ring_cons *comp;
-	__u32 queue_id;
-	struct xsk_umem *umem;
-	int refcount;
-	int ifindex;
-	struct list_head list;
-	int prog_fd;
-	int xsks_map_fd;
-	char ifname[IFNAMSIZ];
 };

 struct xsk_socket {
 	struct xsk_ring_cons *rx;
 	struct xsk_ring_prod *tx;
 	__u64 outstanding_tx;
-	struct xsk_ctx *ctx;
+	struct xsk_umem *umem;
 	struct xsk_socket_config config;
 	int fd;
+	int ifindex;
+	int prog_fd;
+	int xsks_map_fd;
+	__u32 queue_id;
+	char ifname[IFNAMSIZ];
 };

 struct xsk_nl_info {
@@ -211,73 +203,15 @@ static int xsk_get_mmap_offsets(int fd, struct xdp_mmap_offsets *off)
 	return -EINVAL;
 }

-static int xsk_create_umem_rings(struct xsk_umem *umem, int fd,
-				 struct xsk_ring_prod *fill,
-				 struct xsk_ring_cons *comp)
-{
-	struct xdp_mmap_offsets off;
-	void *map;
-	int err;
-
-	err = setsockopt(fd, SOL_XDP, XDP_UMEM_FILL_RING,
-			 &umem->config.fill_size,
-			 sizeof(umem->config.fill_size));
-	if (err)
-		return -errno;
-
-	err = setsockopt(fd, SOL_XDP, XDP_UMEM_COMPLETION_RING,
-			 &umem->config.comp_size,
-			 sizeof(umem->config.comp_size));
-	if (err)
-		return -errno;
-
-	err = xsk_get_mmap_offsets(fd, &off);
-	if (err)
-		return -errno;
-
-	map = mmap(NULL, off.fr.desc + umem->config.fill_size * sizeof(__u64),
-		   PROT_READ | PROT_WRITE, MAP_SHARED | MAP_POPULATE, fd,
-		   XDP_UMEM_PGOFF_FILL_RING);
-	if (map == MAP_FAILED)
-		return -errno;
-
-	fill->mask = umem->config.fill_size - 1;
-	fill->size = umem->config.fill_size;
-	fill->producer = map + off.fr.producer;
-	fill->consumer = map + off.fr.consumer;
-	fill->flags = map + off.fr.flags;
-	fill->ring = map + off.fr.desc;
-	fill->cached_cons = umem->config.fill_size;
-
-	map = mmap(NULL, off.cr.desc + umem->config.comp_size * sizeof(__u64),
-		   PROT_READ | PROT_WRITE, MAP_SHARED | MAP_POPULATE, fd,
-		   XDP_UMEM_PGOFF_COMPLETION_RING);
-	if (map == MAP_FAILED) {
-		err = -errno;
-		goto out_mmap;
-	}
-
-	comp->mask = umem->config.comp_size - 1;
-	comp->size = umem->config.comp_size;
-	comp->producer = map + off.cr.producer;
-	comp->consumer = map + off.cr.consumer;
-	comp->flags = map + off.cr.flags;
-	comp->ring = map + off.cr.desc;
-
-	return 0;
-
-out_mmap:
-	munmap(map, off.fr.desc + umem->config.fill_size * sizeof(__u64));
-	return err;
-}
-
 int xsk_umem__create_v0_0_4(struct xsk_umem **umem_ptr, void *umem_area,
 			    __u64 size, struct xsk_ring_prod *fill,
 			    struct xsk_ring_cons *comp,
 			    const struct xsk_umem_config *usr_config)
 {
+	struct xdp_mmap_offsets off;
 	struct xdp_umem_reg mr;
 	struct xsk_umem *umem;
+	void *map;
 	int err;

 	if (!umem_area || !umem_ptr || !fill || !comp)
@@ -296,7 +230,6 @@ int xsk_umem__create_v0_0_4(struct xsk_umem **umem_ptr, void *umem_area,
 	}

 	umem->umem_area = umem_area;
-	INIT_LIST_HEAD(&umem->ctx_list);
 	xsk_set_umem_config(&umem->config, usr_config);

 	memset(&mr, 0, sizeof(mr));
@@ -311,16 +244,71 @@ int xsk_umem__create_v0_0_4(struct xsk_umem **umem_ptr, void *umem_area,
 		err = -errno;
 		goto out_socket;
 	}
-
-	err = xsk_create_umem_rings(umem, umem->fd, fill, comp);
-	if (err)
+	err = setsockopt(umem->fd, SOL_XDP, XDP_UMEM_FILL_RING,
+			 &umem->config.fill_size,
+			 sizeof(umem->config.fill_size));
+	if (err) {
+		err = -errno;
 		goto out_socket;
+	}
+	err = setsockopt(umem->fd, SOL_XDP, XDP_UMEM_COMPLETION_RING,
+			 &umem->config.comp_size,
+			 sizeof(umem->config.comp_size));
+	if (err) {
+		err = -errno;
+		goto out_socket;
+	}
+
+	err = xsk_get_mmap_offsets(umem->fd, &off);
+	if (err) {
+		err = -errno;
+		goto out_socket;
+	}
+
+	map = mmap(NULL, off.fr.desc + umem->config.fill_size * sizeof(__u64),
+		   PROT_READ | PROT_WRITE, MAP_SHARED | MAP_POPULATE, umem->fd,
+		   XDP_UMEM_PGOFF_FILL_RING);
+	if (map == MAP_FAILED) {
+		err = -errno;
+		goto out_socket;
+	}
+
+	umem->fill = fill;
+	fill->mask = umem->config.fill_size - 1;
+	fill->size = umem->config.fill_size;
+	fill->producer = map + off.fr.producer;
+	fill->consumer = map + off.fr.consumer;
+	fill->flags = map + off.fr.flags;
+	fill->ring = map + off.fr.desc;
+	fill->cached_prod = *fill->producer;
+	/* cached_cons is "size" bigger than the real consumer pointer
+	 * See xsk_prod_nb_free
+	 */
+	fill->cached_cons = *fill->consumer + umem->config.fill_size;
+
+	map = mmap(NULL, off.cr.desc + umem->config.comp_size * sizeof(__u64),
+		   PROT_READ | PROT_WRITE, MAP_SHARED | MAP_POPULATE, umem->fd,
+		   XDP_UMEM_PGOFF_COMPLETION_RING);
+	if (map == MAP_FAILED) {
+		err = -errno;
+		goto out_mmap;
+	}
+
+	umem->comp = comp;
+	comp->mask = umem->config.comp_size - 1;
+	comp->size = umem->config.comp_size;
+	comp->producer = map + off.cr.producer;
+	comp->consumer = map + off.cr.consumer;
+	comp->flags = map + off.cr.flags;
+	comp->ring = map + off.cr.desc;
+	comp->cached_prod = *comp->producer;
+	comp->cached_cons = *comp->consumer;

-	umem->fill_save = fill;
-	umem->comp_save = comp;
 	*umem_ptr = umem;
 	return 0;

+out_mmap:
+	munmap(map, off.fr.desc + umem->config.fill_size * sizeof(__u64));
 out_socket:
 	close(umem->fd);
 out_umem_alloc:
@@ -354,7 +342,6 @@ DEFAULT_VERSION(xsk_umem__create_v0_0_4, xsk_umem__create, LIBBPF_0.0.4)
 static int xsk_load_xdp_prog(struct xsk_socket *xsk)
 {
 	static const int log_buf_size = 16 * 1024;
-	struct xsk_ctx *ctx = xsk->ctx;
 	char log_buf[log_buf_size];
 	int err, prog_fd;

@@ -382,7 +369,7 @@ static int xsk_load_xdp_prog(struct xsk_socket *xsk)
 		/* *(u32 *)(r10 - 4) = r2 */
 		BPF_STX_MEM(BPF_W, BPF_REG_10, BPF_REG_2, -4),
 		/* r1 = xskmap[] */
-		BPF_LD_MAP_FD(BPF_REG_1, ctx->xsks_map_fd),
+		BPF_LD_MAP_FD(BPF_REG_1, xsk->xsks_map_fd),
 		/* r3 = XDP_PASS */
 		BPF_MOV64_IMM(BPF_REG_3, 2),
 		/* call bpf_redirect_map */
@@ -394,7 +381,7 @@ static int xsk_load_xdp_prog(struct xsk_socket *xsk)
 		/* r2 += -4 */
 		BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -4),
 		/* r1 = xskmap[] */
-		BPF_LD_MAP_FD(BPF_REG_1, ctx->xsks_map_fd),
+		BPF_LD_MAP_FD(BPF_REG_1, xsk->xsks_map_fd),
 		/* call bpf_map_lookup_elem */
 		BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem),
 		/* r1 = r0 */
@@ -406,7 +393,7 @@ static int xsk_load_xdp_prog(struct xsk_socket *xsk)
 		/* r2 = *(u32 *)(r10 - 4) */
 		BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_10, -4),
 		/* r1 = xskmap[] */
-		BPF_LD_MAP_FD(BPF_REG_1, ctx->xsks_map_fd),
+		BPF_LD_MAP_FD(BPF_REG_1, xsk->xsks_map_fd),
 		/* r3 = 0 */
 		BPF_MOV64_IMM(BPF_REG_3, 0),
 		/* call bpf_redirect_map */
@@ -424,21 +411,19 @@ static int xsk_load_xdp_prog(struct xsk_socket *xsk)
 		return prog_fd;
 	}

-	err = bpf_set_link_xdp_fd(xsk->ctx->ifindex, prog_fd,
-				  xsk->config.xdp_flags);
+	err = bpf_set_link_xdp_fd(xsk->ifindex, prog_fd, xsk->config.xdp_flags);
 	if (err) {
 		close(prog_fd);
 		return err;
 	}

-	ctx->prog_fd = prog_fd;
+	xsk->prog_fd = prog_fd;
 	return 0;
 }

 static int xsk_get_max_queues(struct xsk_socket *xsk)
 {
 	struct ethtool_channels channels = { .cmd = ETHTOOL_GCHANNELS };
-	struct xsk_ctx *ctx = xsk->ctx;
 	struct ifreq ifr = {};
 	int fd, err, ret;

@@ -447,7 +432,7 @@ static int xsk_get_max_queues(struct xsk_socket *xsk)
 		return -errno;

 	ifr.ifr_data = (void *)&channels;
-	memcpy(ifr.ifr_name, ctx->ifname, IFNAMSIZ - 1);
+	memcpy(ifr.ifr_name, xsk->ifname, IFNAMSIZ - 1);
 	ifr.ifr_name[IFNAMSIZ - 1] = '\0';
 	err = ioctl(fd, SIOCETHTOOL, &ifr);
 	if (err && errno != EOPNOTSUPP) {
@@ -475,7 +460,6 @@ out:

 static int xsk_create_bpf_maps(struct xsk_socket *xsk)
 {
-	struct xsk_ctx *ctx = xsk->ctx;
 	int max_queues;
 	int fd;

@@ -488,17 +472,15 @@ static int xsk_create_bpf_maps(struct xsk_socket *xsk)
 	if (fd < 0)
 		return fd;

-	ctx->xsks_map_fd = fd;
+	xsk->xsks_map_fd = fd;

 	return 0;
 }

 static void xsk_delete_bpf_maps(struct xsk_socket *xsk)
 {
-	struct xsk_ctx *ctx = xsk->ctx;
-
-	bpf_map_delete_elem(ctx->xsks_map_fd, &ctx->queue_id);
-	close(ctx->xsks_map_fd);
+	bpf_map_delete_elem(xsk->xsks_map_fd, &xsk->queue_id);
+	close(xsk->xsks_map_fd);
 }

 static int xsk_lookup_bpf_maps(struct xsk_socket *xsk)
@@ -506,11 +488,10 @@ static int xsk_lookup_bpf_maps(struct xsk_socket *xsk)
 	__u32 i, *map_ids, num_maps, prog_len = sizeof(struct bpf_prog_info);
 	__u32 map_len = sizeof(struct bpf_map_info);
 	struct bpf_prog_info prog_info = {};
-	struct xsk_ctx *ctx = xsk->ctx;
 	struct bpf_map_info map_info;
 	int fd, err;

-	err = bpf_obj_get_info_by_fd(ctx->prog_fd, &prog_info, &prog_len);
+	err = bpf_obj_get_info_by_fd(xsk->prog_fd, &prog_info, &prog_len);
 	if (err)
 		return err;

@@ -524,11 +505,11 @@ static int xsk_lookup_bpf_maps(struct xsk_socket *xsk)
 	prog_info.nr_map_ids = num_maps;
 	prog_info.map_ids = (__u64)(unsigned long)map_ids;

-	err = bpf_obj_get_info_by_fd(ctx->prog_fd, &prog_info, &prog_len);
+	err = bpf_obj_get_info_by_fd(xsk->prog_fd, &prog_info, &prog_len);
 	if (err)
 		goto out_map_ids;

-	ctx->xsks_map_fd = -1;
+	xsk->xsks_map_fd = -1;

 	for (i = 0; i < prog_info.nr_map_ids; i++) {
 		fd = bpf_map_get_fd_by_id(map_ids[i]);
@@ -542,7 +523,7 @@ static int xsk_lookup_bpf_maps(struct xsk_socket *xsk)
 		}

 		if (!strcmp(map_info.name, "xsks_map")) {
-			ctx->xsks_map_fd = fd;
+			xsk->xsks_map_fd = fd;
 			continue;
 		}

@@ -550,7 +531,7 @@ static int xsk_lookup_bpf_maps(struct xsk_socket *xsk)
 	}

 	err = 0;
-	if (ctx->xsks_map_fd == -1)
+	if (xsk->xsks_map_fd == -1)
 		err = -ENOENT;

 out_map_ids:
@@ -560,19 +541,16 @@ out_map_ids:

 static int xsk_set_bpf_maps(struct xsk_socket *xsk)
 {
-	struct xsk_ctx *ctx = xsk->ctx;
-
-	return bpf_map_update_elem(ctx->xsks_map_fd, &ctx->queue_id,
+	return bpf_map_update_elem(xsk->xsks_map_fd, &xsk->queue_id,
 				   &xsk->fd, 0);
 }

 static int xsk_setup_xdp_prog(struct xsk_socket *xsk)
 {
-	struct xsk_ctx *ctx = xsk->ctx;
 	__u32 prog_id = 0;
 	int err;

-	err = bpf_get_link_xdp_id(ctx->ifindex, &prog_id,
+	err = bpf_get_link_xdp_id(xsk->ifindex, &prog_id,
 				  xsk->config.xdp_flags);
 	if (err)
 		return err;
@@ -588,12 +566,12 @@ static int xsk_setup_xdp_prog(struct xsk_socket *xsk)
 			return err;
 		}
 	} else {
-		ctx->prog_fd = bpf_prog_get_fd_by_id(prog_id);
-		if (ctx->prog_fd < 0)
+		xsk->prog_fd = bpf_prog_get_fd_by_id(prog_id);
+		if (xsk->prog_fd < 0)
 			return -errno;
 		err = xsk_lookup_bpf_maps(xsk);
 		if (err) {
-			close(ctx->prog_fd);
+			close(xsk->prog_fd);
 			return err;
 		}
 	}
@@ -602,108 +580,23 @@ static int xsk_setup_xdp_prog(struct xsk_socket *xsk)
 		err = xsk_set_bpf_maps(xsk);
 	if (err) {
 		xsk_delete_bpf_maps(xsk);
-		close(ctx->prog_fd);
+		close(xsk->prog_fd);
 		return err;
 	}

 	return 0;
 }

-static struct xsk_ctx *xsk_get_ctx(struct xsk_umem *umem, int ifindex,
-				   __u32 queue_id)
-{
-	struct xsk_ctx *ctx;
-
-	if (list_empty(&umem->ctx_list))
-		return NULL;
-
-	list_for_each_entry(ctx, &umem->ctx_list, list) {
-		if (ctx->ifindex == ifindex && ctx->queue_id == queue_id) {
-			ctx->refcount++;
-			return ctx;
-		}
-	}
-
-	return NULL;
-}
-
-static void xsk_put_ctx(struct xsk_ctx *ctx)
-{
-	struct xsk_umem *umem = ctx->umem;
-	struct xdp_mmap_offsets off;
-	int err;
-
-	if (--ctx->refcount == 0) {
-		err = xsk_get_mmap_offsets(umem->fd, &off);
-		if (!err) {
-			munmap(ctx->fill->ring - off.fr.desc,
-			       off.fr.desc + umem->config.fill_size *
-			       sizeof(__u64));
-			munmap(ctx->comp->ring - off.cr.desc,
-			       off.cr.desc + umem->config.comp_size *
-			       sizeof(__u64));
-		}
-
-		list_del(&ctx->list);
-		free(ctx);
-	}
-}
-
-static struct xsk_ctx *xsk_create_ctx(struct xsk_socket *xsk,
-				      struct xsk_umem *umem, int ifindex,
-				      const char *ifname, __u32 queue_id,
-				      struct xsk_ring_prod *fill,
-				      struct xsk_ring_cons *comp)
-{
-	struct xsk_ctx *ctx;
-	int err;
-
-	ctx = calloc(1, sizeof(*ctx));
-	if (!ctx)
-		return NULL;
-
-	if (!umem->fill_save) {
-		err = xsk_create_umem_rings(umem, xsk->fd, fill, comp);
-		if (err) {
-			free(ctx);
-			return NULL;
-		}
-	} else if (umem->fill_save != fill || umem->comp_save != comp) {
-		/* Copy over rings to new structs. */
-		memcpy(fill, umem->fill_save, sizeof(*fill));
-		memcpy(comp, umem->comp_save, sizeof(*comp));
-	}
-
-	ctx->ifindex = ifindex;
-	ctx->refcount = 1;
-	ctx->umem = umem;
-	ctx->queue_id = queue_id;
-	memcpy(ctx->ifname, ifname, IFNAMSIZ - 1);
-	ctx->ifname[IFNAMSIZ - 1] = '\0';
-
-	umem->fill_save = NULL;
-	umem->comp_save = NULL;
-	ctx->fill = fill;
-	ctx->comp = comp;
-	list_add(&ctx->list, &umem->ctx_list);
-	return ctx;
-}
-
-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 *usr_config)
+int xsk_socket__create(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,
+		       const struct xsk_socket_config *usr_config)
 {
 	void *rx_map = NULL, *tx_map = NULL;
 	struct sockaddr_xdp sxdp = {};
 	struct xdp_mmap_offsets off;
 	struct xsk_socket *xsk;
-	struct xsk_ctx *ctx;
-	int err, ifindex;
+	int err;

 	if (!umem || !xsk_ptr || !(rx || tx))
 		return -EFAULT;
@@ -716,10 +609,10 @@ int xsk_socket__create_shared(struct xsk_socket **xsk_ptr,
 	if (err)
 		goto out_xsk_alloc;

-	xsk->outstanding_tx = 0;
-	ifindex = if_nametoindex(ifname);
-	if (!ifindex) {
-		err = -errno;
+	if (umem->refcount &&
+	    !(xsk->config.libbpf_flags & XSK_LIBBPF_FLAGS__INHIBIT_PROG_LOAD)) {
+		pr_warn("Error: shared umems not supported by libbpf supplied XDP program.\n");
+		err = -EBUSY;
 		goto out_xsk_alloc;
 	}

@@ -733,21 +626,16 @@ int xsk_socket__create_shared(struct xsk_socket **xsk_ptr,
 		xsk->fd = umem->fd;
 	}

-	ctx = xsk_get_ctx(umem, ifindex, queue_id);
-	if (!ctx) {
-		if (!fill || !comp) {
-			err = -EFAULT;
-			goto out_socket;
-		}
-
-		ctx = xsk_create_ctx(xsk, umem, ifindex, ifname, queue_id,
-				     fill, comp);
-		if (!ctx) {
-			err = -ENOMEM;
-			goto out_socket;
-		}
+	xsk->outstanding_tx = 0;
+	xsk->queue_id = queue_id;
+	xsk->umem = umem;
+	xsk->ifindex = if_nametoindex(ifname);
+	if (!xsk->ifindex) {
+		err = -errno;
+		goto out_socket;
 	}
-	xsk->ctx = ctx;
+	memcpy(xsk->ifname, ifname, IFNAMSIZ - 1);
+	xsk->ifname[IFNAMSIZ - 1] = '\0';

 	if (rx) {
 		err = setsockopt(xsk->fd, SOL_XDP, XDP_RX_RING,
@@ -755,7 +643,7 @@ int xsk_socket__create_shared(struct xsk_socket **xsk_ptr,
 				 sizeof(xsk->config.rx_size));
 		if (err) {
 			err = -errno;
-			goto out_put_ctx;
+			goto out_socket;
 		}
 	}
 	if (tx) {
@@ -764,14 +652,14 @@ int xsk_socket__create_shared(struct xsk_socket **xsk_ptr,
 				 sizeof(xsk->config.tx_size));
 		if (err) {
 			err = -errno;
-			goto out_put_ctx;
+			goto out_socket;
 		}
 	}

 	err = xsk_get_mmap_offsets(xsk->fd, &off);
 	if (err) {
 		err = -errno;
-		goto out_put_ctx;
+		goto out_socket;
 	}

 	if (rx) {
@@ -781,7 +669,7 @@ int xsk_socket__create_shared(struct xsk_socket **xsk_ptr,
 			      xsk->fd, XDP_PGOFF_RX_RING);
 		if (rx_map == MAP_FAILED) {
 			err = -errno;
-			goto out_put_ctx;
+			goto out_socket;
 		}

 		rx->mask = xsk->config.rx_size - 1;
@@ -820,10 +708,10 @@ int xsk_socket__create_shared(struct xsk_socket **xsk_ptr,
 	xsk->tx = tx;

 	sxdp.sxdp_family = PF_XDP;
-	sxdp.sxdp_ifindex = ctx->ifindex;
-	sxdp.sxdp_queue_id = ctx->queue_id;
+	sxdp.sxdp_ifindex = xsk->ifindex;
+	sxdp.sxdp_queue_id = xsk->queue_id;
 	if (umem->refcount > 1) {
-		sxdp.sxdp_flags |= XDP_SHARED_UMEM;
+		sxdp.sxdp_flags = XDP_SHARED_UMEM;
 		sxdp.sxdp_shared_umem_fd = umem->fd;
 	} else {
 		sxdp.sxdp_flags = xsk->config.bind_flags;
@@ -835,7 +723,7 @@ int xsk_socket__create_shared(struct xsk_socket **xsk_ptr,
 		goto out_mmap_tx;
 	}

-	ctx->prog_fd = -1;
+	xsk->prog_fd = -1;

 	if (!(xsk->config.libbpf_flags & XSK_LIBBPF_FLAGS__INHIBIT_PROG_LOAD)) {
 		err = xsk_setup_xdp_prog(xsk);
@@ -854,8 +742,6 @@ out_mmap_rx:
 	if (rx)
 		munmap(rx_map, off.rx.desc +
 		       xsk->config.rx_size * sizeof(struct xdp_desc));
-out_put_ctx:
-	xsk_put_ctx(ctx);
 out_socket:
 	if (--umem->refcount)
 		close(xsk->fd);
@@ -864,24 +750,25 @@ out_xsk_alloc:
 	return err;
 }

-int xsk_socket__create(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,
-		       const struct xsk_socket_config *usr_config)
-{
-	return xsk_socket__create_shared(xsk_ptr, ifname, queue_id, umem,
-					 rx, tx, umem->fill_save,
-					 umem->comp_save, usr_config);
-}
-
 int xsk_umem__delete(struct xsk_umem *umem)
 {
+	struct xdp_mmap_offsets off;
+	int err;
+
 	if (!umem)
 		return 0;

 	if (umem->refcount)
 		return -EBUSY;

+	err = xsk_get_mmap_offsets(umem->fd, &off);
+	if (!err) {
+		munmap(umem->fill->ring - off.fr.desc,
+		       off.fr.desc + umem->config.fill_size * sizeof(__u64));
+		munmap(umem->comp->ring - off.cr.desc,
+		       off.cr.desc + umem->config.comp_size * sizeof(__u64));
+	}
+
 	close(umem->fd);
 	free(umem);

@@ -891,16 +778,15 @@ int xsk_umem__delete(struct xsk_umem *umem)
 void xsk_socket__delete(struct xsk_socket *xsk)
 {
 	size_t desc_sz = sizeof(struct xdp_desc);
-	struct xsk_ctx *ctx = xsk->ctx;
 	struct xdp_mmap_offsets off;
 	int err;

 	if (!xsk)
 		return;

-	if (ctx->prog_fd != -1) {
+	if (xsk->prog_fd != -1) {
 		xsk_delete_bpf_maps(xsk);
-		close(ctx->prog_fd);
+		close(xsk->prog_fd);
 	}

 	err = xsk_get_mmap_offsets(xsk->fd, &off);
@@ -913,15 +799,14 @@ void xsk_socket__delete(struct xsk_socket *xsk)
 			munmap(xsk->tx->ring - off.tx.desc,
 			       off.tx.desc + xsk->config.tx_size * desc_sz);
 		}
+
 	}

-	xsk_put_ctx(ctx);
-
-	ctx->umem->refcount--;
+	xsk->umem->refcount--;
 	/* Do not close an fd that also has an associated umem connected
 	 * to it.
 	 */
-	if (xsk->fd != ctx->umem->fd)
+	if (xsk->fd != xsk->umem->fd)
 		close(xsk->fd);
 	free(xsk);
 }
--- a/src/xsk.h
+++ b/src/xsk.h
@@ -234,15 +234,6 @@ LIBBPF_API int xsk_socket__create(struct xsk_socket **xsk,
 				  struct xsk_ring_cons *rx,
 				  struct xsk_ring_prod *tx,
 				  const struct xsk_socket_config *config);
-LIBBPF_API 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 int xsk_umem__delete(struct xsk_umem *umem);
--- a/travis-ci/vmtest/build_pahole.sh
+++ b/travis-ci/vmtest/build_pahole.sh
@@ -1,10 +1,6 @@
 #!/bin/bash

-set -eu
-
-source $(cd $(dirname $0) && pwd)/helpers.sh
-
-travis_fold start build_pahole "Building pahole"
+set -eux

 CWD=$(pwd)
 REPO_PATH=$1
@@ -27,4 +23,3 @@ export LD_LIBRARY_PATH=${LD_LIBRARY_PATH:-}:/usr/local/lib
 ldd $(which pahole)
 pahole --version

-travis_fold end build_pahole
--- a/travis-ci/vmtest/build_selftests.sh
+++ b/travis-ci/vmtest/build_selftests.sh
@@ -1,12 +1,8 @@
 #!/bin/bash

-set -euo pipefail
+set -euxo pipefail

-source $(cd $(dirname $0) && pwd)/helpers.sh
-
-travis_fold start prepare_selftests "Building selftests"
-
-LLVM_VER=12
+LLVM_VER=11
 LIBBPF_PATH="${REPO_ROOT}"
 REPO_PATH="travis-ci/vmtest/bpf-next"

@@ -15,20 +11,13 @@ if [ -f "${PREPARE_SELFTESTS_SCRIPT}" ]; then
 	(cd "${REPO_ROOT}/${REPO_PATH}/tools/testing/selftests/bpf" && ${PREPARE_SELFTESTS_SCRIPT})
 fi

-if [[ "${KERNEL}" = 'LATEST' ]]; then
-	VMLINUX_H=
-else
-	VMLINUX_H=${VMTEST_ROOT}/vmlinux.h
-fi
-
 make \
 	CLANG=clang-${LLVM_VER} \
 	LLC=llc-${LLVM_VER} \
 	LLVM_STRIP=llvm-strip-${LLVM_VER} \
 	VMLINUX_BTF="${VMLINUX_BTF}" \
-	VMLINUX_H=${VMLINUX_H} \
 	-C "${REPO_ROOT}/${REPO_PATH}/tools/testing/selftests/bpf" \
-	-j $((2*$(nproc)))
+	-j $((4*$(nproc)))
 mkdir ${LIBBPF_PATH}/selftests
 cp -R "${REPO_ROOT}/${REPO_PATH}/tools/testing/selftests/bpf" \
 	${LIBBPF_PATH}/selftests
@@ -37,5 +26,3 @@ rm selftests/bpf/.gitignore
 git add selftests

 git add "${VMTEST_ROOT}/configs/blacklist"
-
-travis_fold end prepare_selftests
--- a/travis-ci/vmtest/checkout_latest_kernel.sh
+++ b/travis-ci/vmtest/checkout_latest_kernel.sh
@@ -1,8 +1,6 @@
 #!/bin/bash

-set -eu
-
-source $(cd $(dirname $0) && pwd)/helpers.sh
+set -eux

 CWD=$(pwd)
 LIBBPF_PATH=$(pwd)
@@ -10,35 +8,17 @@ REPO_PATH=$1

 BPF_NEXT_ORIGIN=https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next.git
 LINUX_SHA=$(cat ${LIBBPF_PATH}/CHECKPOINT-COMMIT)
-SNAPSHOT_URL=https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next.git/snapshot/bpf-next-${LINUX_SHA}.tar.gz

 echo REPO_PATH = ${REPO_PATH}
 echo LINUX_SHA = ${LINUX_SHA}

 if [ ! -d "${REPO_PATH}" ]; then
-	echo
-	travis_fold start pull_kernel_srcs "Fetching kernel sources"
-
-	mkdir -p $(dirname "${REPO_PATH}")
-	cd $(dirname "${REPO_PATH}")
-	# attempt to fetch desired bpf-next repo snapshot
-	if wget ${SNAPSHOT_URL} && tar xf bpf-next-${LINUX_SHA}.tar.gz ; then
-		mv bpf-next-${LINUX_SHA} $(basename ${REPO_PATH})
-	else
-		# but fallback to git fetch approach if that fails
-		mkdir -p $(basename ${REPO_PATH})
-		cd $(basename ${REPO_PATH})
-		git init
-		git remote add bpf-next ${BPF_NEXT_ORIGIN}
-		# try shallow clone first
-		git fetch --depth 32 bpf-next
-		# check if desired SHA exists
-		if ! git cat-file -e ${LINUX_SHA}^{commit} ; then
-			# if not, fetch all of bpf-next; slow and painful
-			git fetch bpf-next
-		fi
-		git reset --hard ${LINUX_SHA}
-	fi
-
-	travis_fold end pull_kernel_srcs
+	mkdir -p ${REPO_PATH}
+	cd ${REPO_PATH}
+	git init
+	git remote add bpf-next ${BPF_NEXT_ORIGIN}
+	for depth in 32 64 128; do
+		git fetch --depth ${depth} bpf-next
+		git reset --hard ${LINUX_SHA} && break
+	done
 fi
--- a/travis-ci/vmtest/configs/INDEX
+++ b/travis-ci/vmtest/configs/INDEX
@@ -1,8 +1,6 @@
 INDEX	https://libbpf-vmtest.s3-us-west-1.amazonaws.com/x86_64/INDEX
-libbpf-vmtest-rootfs-2020.09.27.tar.zst	https://libbpf-vmtest.s3-us-west-1.amazonaws.com/x86_64/libbpf-vmtest-rootfs-2020.09.27.tar.zst
-vmlinux-4.9.0.zst	https://libbpf-vmtest.s3-us-west-1.amazonaws.com/x86_64/vmlinux-4.9.0.zst
+libbpf-vmtest-rootfs-2020.03.11.tar.zst	https://libbpf-vmtest.s3-us-west-1.amazonaws.com/x86_64/libbpf-vmtest-rootfs-2020.03.11.tar.zst
 vmlinux-5.5.0-rc6.zst	https://libbpf-vmtest.s3-us-west-1.amazonaws.com/x86_64/vmlinux-5.5.0-rc6.zst
 vmlinux-5.5.0.zst	https://libbpf-vmtest.s3-us-west-1.amazonaws.com/x86_64/vmlinux-5.5.0.zst
 vmlinuz-5.5.0-rc6	https://libbpf-vmtest.s3-us-west-1.amazonaws.com/x86_64/vmlinuz-5.5.0-rc6
 vmlinuz-5.5.0	https://libbpf-vmtest.s3-us-west-1.amazonaws.com/x86_64/vmlinuz-5.5.0
-vmlinuz-4.9.0	https://libbpf-vmtest.s3-us-west-1.amazonaws.com/x86_64/vmlinuz-4.9.0
--- a/travis-ci/vmtest/configs/blacklist/BLACKLIST-5.5.0
+++ b/travis-ci/vmtest/configs/blacklist/BLACKLIST-5.5.0
@@ -3,15 +3,17 @@ align			# verifier output format changed
 bpf_iter		# bpf_iter support is missing
 bpf_obj_id		# bpf_link support missing for GET_OBJ_INFO, GET_FD_BY_ID, etc
 bpf_tcp_ca		# STRUCT_OPS is missing
-btf_map_in_map		# inner map leak fixed in 5.8
-btf_skc_cls_ingress	# v5.10+ functionality
-cg_storage_multi	# v5.9+ functionality
+
+# latest Clang generates code that fails to verify
+bpf_verif_scale
+#bpf_verif_scale/strobemeta.o
+#bpf_verif_scale/strobemeta_nounroll1.o
+#bpf_verif_scale/strobemeta_nounroll2.o
+
 cgroup_attach_multi	# BPF_F_REPLACE_PROG missing
 cgroup_link		# LINK_CREATE is missing
 cgroup_skb_sk_lookup	# bpf_sk_lookup_tcp() helper is missing
-cls_redirect		# bpf_csum_level() helper is missing
 connect_force_port	# cgroup/get{peer,sock}name{4,6} support is missing
-d_path			# v5.10+ feature
 enable_stats		# BPF_ENABLE_STATS support is missing
 fentry_fexit		# bpf_prog_test_tracing missing
 fentry_test		# bpf_prog_test_tracing missing
@@ -20,20 +22,12 @@ fexit_test		# bpf_prog_test_tracing missing
 flow_dissector		# bpf_link-based flow dissector is in 5.8+
 flow_dissector_reattach
 get_stack_raw_tp	# exercising BPF verifier bug causing infinite loop
-kfree_skb		# 32-bit pointer arith in test_pkt_access
-ksyms			# __start_BTF has different name
 link_pinning		# bpf_link is missing
 load_bytes_relative	# new functionality in 5.8
-map_ptr			# test uses BPF_MAP_TYPE_RINGBUF, added in 5.8
-metadata		# v5.10+
 mmap			# 5.5 kernel is too permissive with re-mmaping
 modify_return		# fmod_ret support is missing
 ns_current_pid_tgid	# bpf_get_ns_current_pid_tgid() helper is missing
-pe_preserve_elems	# v5.10+
 perf_branches		# bpf_read_branch_records() helper is missing
-pkt_access		# 32-bit pointer arith in test_pkt_access
-prog_run_xattr		# 32-bit pointer arith in test_pkt_access
-raw_tp_test_run		# v5.10+
 ringbuf			# BPF_MAP_TYPE_RINGBUF is supported in 5.8+

 # bug in verifier w/ tracking references
@@ -41,34 +35,19 @@ ringbuf			# BPF_MAP_TYPE_RINGBUF is supported in 5.8+
 reference_tracking

 select_reuseport	# UDP support is missing
-send_signal		# bpf_send_signal_thread() helper is missing
 sk_assign		# bpf_sk_assign helper missing
 skb_helpers		# helpers added in 5.8+
-snprintf_btf		# v5.10+
-sock_fields		# v5.10+
-sockmap_basic		# uses new socket fields, 5.8+
 sockmap_listen		# no listen socket supportin SOCKMAP
-sockopt_sk
-sk_lookup		# v5.9+
 skb_ctx			# ctx_{size, }_{in, out} in BPF_PROG_TEST_RUN is missing
-tcp_hdr_options		# v5.10+, new TCP header options feature in BPF
-test_bpffs		# v5.10+, new CONFIG_BPF_PRELOAD=y and CONFIG_BPF_PRELOAD_UMG=y|m
 test_global_funcs	# kernel doesn't support BTF linkage=global on FUNCs
-test_local_storage	# v5.10+ feature
 test_lsm		# no BPF_LSM support
 test_overhead		# no fmod_ret support
-test_profiler		# needs verifier logic improvements from v5.10+
-trace_ext		# v5.10+
-udp_limit		# no cgroup/sock_release BPF program type (5.9+)
-varlen			# verifier bug fixed in later kernels
 vmlinux			# hrtimer_nanosleep() signature changed incompatibly
 xdp_adjust_tail		# new XDP functionality added in 5.8
 xdp_attach		# IFLA_XDP_EXPECTED_FD support is missing
 xdp_bpf2bpf		# freplace is missing
-xdp_cpumap_attach	# v5.9+
-xdp_devmap_attach	# new feature in 5.8
-xdp_link		# v5.9+

-# SUBTESTS FAILING (block entire test until blocking subtests works properly)
-btf			# "size check test", "func (Non zero vlen)"
-tailcalls		# tailcall_bpf2bpf_1, tailcall_bpf2bpf_2, tailcall_bpf2bpf_3
+
+# TEMPORARILY DISABLED
+send_signal		# flaky
+cls_redirect		# latest Clang breaks BPF verification
--- a/travis-ci/vmtest/configs/blacklist/BLACKLIST-latest
+++ b/travis-ci/vmtest/configs/blacklist/BLACKLIST-latest
@@ -1 +1,5 @@
-# TEMPORARY
+# TEMPORARILY DISABLED
+send_signal		# flaky
+test_lsm		# semi-working
+sk_assign		# needs better setup in Travis CI
+core_reloc		# temporary test breakage
--- a/travis-ci/vmtest/configs/latest.config
+++ b/travis-ci/vmtest/configs/latest.config
@@ -1,15 +1,18 @@
 #
 # Automatically generated file; DO NOT EDIT.
-# Linux/x86 5.9.0-rc1 Kernel Configuration
+# Linux/x86 5.6.0-rc3 Kernel Configuration
+#
+
+#
+# Compiler: gcc (GCC) 4.8.5 20150623 (Red Hat 4.8.5-36)
 #
-CONFIG_CC_VERSION_TEXT="gcc (GCC) 8.2.1 20180801 (Red Hat 8.2.1-2)"
 CONFIG_CC_IS_GCC=y
-CONFIG_GCC_VERSION=80201
-CONFIG_LD_VERSION=230000000
+CONFIG_GCC_VERSION=40805
 CONFIG_CLANG_VERSION=0
 CONFIG_CC_CAN_LINK=y
-CONFIG_CC_CAN_LINK_STATIC=y
 CONFIG_CC_HAS_ASM_GOTO=y
+CONFIG_CC_HAS_WARN_MAYBE_UNINITIALIZED=y
+CONFIG_CC_DISABLE_WARN_MAYBE_UNINITIALIZED=y
 CONFIG_IRQ_WORK=y
 CONFIG_BUILDTIME_TABLE_SORT=y
 CONFIG_THREAD_INFO_IN_TASK=y
@@ -28,27 +31,22 @@ CONFIG_HAVE_KERNEL_LZMA=y
 CONFIG_HAVE_KERNEL_XZ=y
 CONFIG_HAVE_KERNEL_LZO=y
 CONFIG_HAVE_KERNEL_LZ4=y
-CONFIG_HAVE_KERNEL_ZSTD=y
 CONFIG_KERNEL_GZIP=y
 # CONFIG_KERNEL_BZIP2 is not set
 # CONFIG_KERNEL_LZMA is not set
 # CONFIG_KERNEL_XZ is not set
 # CONFIG_KERNEL_LZO is not set
 # CONFIG_KERNEL_LZ4 is not set
-# CONFIG_KERNEL_ZSTD is not set
-CONFIG_DEFAULT_INIT=""
 CONFIG_DEFAULT_HOSTNAME="(none)"
 CONFIG_SWAP=y
 CONFIG_SYSVIPC=y
 CONFIG_SYSVIPC_SYSCTL=y
 CONFIG_POSIX_MQUEUE=y
 CONFIG_POSIX_MQUEUE_SYSCTL=y
-# CONFIG_WATCH_QUEUE is not set
 CONFIG_CROSS_MEMORY_ATTACH=y
 # CONFIG_USELIB is not set
-CONFIG_AUDIT=y
+# CONFIG_AUDIT is not set
 CONFIG_HAVE_ARCH_AUDITSYSCALL=y
-CONFIG_AUDITSYSCALL=y

 #
 # IRQ subsystem
@@ -58,7 +56,6 @@ CONFIG_GENERIC_IRQ_SHOW=y
 CONFIG_GENERIC_IRQ_EFFECTIVE_AFF_MASK=y
 CONFIG_GENERIC_PENDING_IRQ=y
 CONFIG_GENERIC_IRQ_MIGRATION=y
-CONFIG_HARDIRQS_SW_RESEND=y
 CONFIG_IRQ_DOMAIN=y
 CONFIG_IRQ_DOMAIN_HIERARCHY=y
 CONFIG_GENERIC_MSI_IRQ=y
@@ -71,6 +68,7 @@ CONFIG_SPARSE_IRQ=y
 # end of IRQ subsystem

 CONFIG_CLOCKSOURCE_WATCHDOG=y
+CONFIG_ARCH_CLOCKSOURCE_DATA=y
 CONFIG_ARCH_CLOCKSOURCE_INIT=y
 CONFIG_CLOCKSOURCE_VALIDATE_LAST_CYCLE=y
 CONFIG_GENERIC_TIME_VSYSCALL=y
@@ -78,8 +76,6 @@ CONFIG_GENERIC_CLOCKEVENTS=y
 CONFIG_GENERIC_CLOCKEVENTS_BROADCAST=y
 CONFIG_GENERIC_CLOCKEVENTS_MIN_ADJUST=y
 CONFIG_GENERIC_CMOS_UPDATE=y
-CONFIG_HAVE_POSIX_CPU_TIMERS_TASK_WORK=y
-CONFIG_POSIX_CPU_TIMERS_TASK_WORK=y

 #
 # Timers subsystem
@@ -124,9 +120,7 @@ CONFIG_PREEMPT_RCU=y
 # CONFIG_RCU_EXPERT is not set
 CONFIG_SRCU=y
 CONFIG_TREE_SRCU=y
-CONFIG_TASKS_RCU_GENERIC=y
 CONFIG_TASKS_RCU=y
-CONFIG_TASKS_RUDE_RCU=y
 CONFIG_RCU_STALL_COMMON=y
 CONFIG_RCU_NEED_SEGCBLIST=y
 # end of RCU Subsystem
@@ -142,7 +136,6 @@ CONFIG_HAVE_UNSTABLE_SCHED_CLOCK=y
 #
 # Scheduler features
 #
-# CONFIG_UCLAMP_TASK is not set
 # end of Scheduler features

 CONFIG_ARCH_SUPPORTS_NUMA_BALANCING=y
@@ -155,6 +148,7 @@ CONFIG_CGROUPS=y
 CONFIG_PAGE_COUNTER=y
 CONFIG_MEMCG=y
 CONFIG_MEMCG_SWAP=y
+CONFIG_MEMCG_SWAP_ENABLED=y
 CONFIG_MEMCG_KMEM=y
 CONFIG_BLK_CGROUP=y
 CONFIG_CGROUP_WRITEBACK=y
@@ -193,7 +187,6 @@ CONFIG_RD_LZMA=y
 CONFIG_RD_XZ=y
 CONFIG_RD_LZO=y
 CONFIG_RD_LZ4=y
-CONFIG_RD_ZSTD=y
 CONFIG_BOOT_CONFIG=y
 CONFIG_CC_OPTIMIZE_FOR_PERFORMANCE=y
 # CONFIG_CC_OPTIMIZE_FOR_SIZE is not set
@@ -228,14 +221,10 @@ CONFIG_KALLSYMS=y
 CONFIG_KALLSYMS_ALL=y
 CONFIG_KALLSYMS_ABSOLUTE_PERCPU=y
 CONFIG_KALLSYMS_BASE_RELATIVE=y
-CONFIG_BPF_LSM=y
 CONFIG_BPF_SYSCALL=y
 CONFIG_ARCH_WANT_DEFAULT_BPF_JIT=y
 CONFIG_BPF_JIT_ALWAYS_ON=y
 CONFIG_BPF_JIT_DEFAULT_ON=y
-CONFIG_USERMODE_DRIVER=y
-CONFIG_BPF_PRELOAD=y
-CONFIG_BPF_PRELOAD_UMD=y
 # CONFIG_USERFAULTFD is not set
 CONFIG_ARCH_HAS_MEMBARRIER_SYNC_CORE=y
 CONFIG_RSEQ=y
@@ -272,6 +261,7 @@ CONFIG_X86_64=y
 CONFIG_X86=y
 CONFIG_INSTRUCTION_DECODER=y
 CONFIG_OUTPUT_FORMAT="elf64-x86-64"
+CONFIG_ARCH_DEFCONFIG="arch/x86/configs/x86_64_defconfig"
 CONFIG_LOCKDEP_SUPPORT=y
 CONFIG_STACKTRACE_SUPPORT=y
 CONFIG_MMU=y
@@ -389,6 +379,7 @@ CONFIG_X86_DIRECT_GBPAGES=y
 CONFIG_NUMA=y
 CONFIG_AMD_NUMA=y
 CONFIG_X86_64_ACPI_NUMA=y
+CONFIG_NODES_SPAN_OTHER_NODES=y
 # CONFIG_NUMA_EMU is not set
 CONFIG_NODES_SHIFT=6
 CONFIG_ARCH_SPARSEMEM_ENABLE=y
@@ -461,12 +452,12 @@ CONFIG_ACPI_SYSTEM_POWER_STATES_SUPPORT=y
 # CONFIG_ACPI_DEBUGGER is not set
 # CONFIG_ACPI_SPCR_TABLE is not set
 CONFIG_ACPI_LPIT=y
+# CONFIG_ACPI_PROCFS_POWER is not set
 # CONFIG_ACPI_REV_OVERRIDE_POSSIBLE is not set
 # CONFIG_ACPI_EC_DEBUGFS is not set
 # CONFIG_ACPI_AC is not set
 # CONFIG_ACPI_BATTERY is not set
 # CONFIG_ACPI_BUTTON is not set
-# CONFIG_ACPI_TINY_POWER_BUTTON is not set
 # CONFIG_ACPI_VIDEO is not set
 # CONFIG_ACPI_FAN is not set
 # CONFIG_ACPI_DOCK is not set
@@ -519,7 +510,7 @@ CONFIG_CPU_FREQ_GOV_PERFORMANCE=y
 CONFIG_CPU_FREQ_GOV_USERSPACE=y
 CONFIG_CPU_FREQ_GOV_ONDEMAND=y
 CONFIG_CPU_FREQ_GOV_CONSERVATIVE=y
-CONFIG_CPU_FREQ_GOV_SCHEDUTIL=y
+# CONFIG_CPU_FREQ_GOV_SCHEDUTIL is not set

 #
 # CPU frequency scaling drivers
@@ -589,7 +580,6 @@ CONFIG_EFI_ESRT=y
 CONFIG_EFI_RUNTIME_MAP=y
 # CONFIG_EFI_FAKE_MEMMAP is not set
 CONFIG_EFI_RUNTIME_WRAPPERS=y
-CONFIG_EFI_GENERIC_STUB_INITRD_CMDLINE_LOADER=y
 # CONFIG_EFI_CAPSULE_LOADER is not set
 # CONFIG_EFI_TEST is not set
 # CONFIG_APPLE_PROPERTIES is not set
@@ -609,10 +599,8 @@ CONFIG_EFI_EARLYCON=y
 CONFIG_HAVE_KVM=y
 CONFIG_VIRTUALIZATION=y
 # CONFIG_KVM is not set
-CONFIG_KVM_WERROR=y
-CONFIG_AS_AVX512=y
-CONFIG_AS_SHA1_NI=y
-CONFIG_AS_SHA256_NI=y
+# CONFIG_VHOST_NET is not set
+# CONFIG_VHOST_CROSS_ENDIAN_LEGACY is not set

 #
 # General architecture-dependent options
@@ -620,7 +608,6 @@ CONFIG_AS_SHA256_NI=y
 CONFIG_CRASH_CORE=y
 CONFIG_KEXEC_CORE=y
 CONFIG_HOTPLUG_SMT=y
-CONFIG_GENERIC_ENTRY=y
 # CONFIG_OPROFILE is not set
 CONFIG_HAVE_OPROFILE=y
 CONFIG_OPROFILE_NMI_TIMER=y
@@ -652,6 +639,7 @@ CONFIG_HAVE_ASM_MODVERSIONS=y
 CONFIG_HAVE_REGS_AND_STACK_ACCESS_API=y
 CONFIG_HAVE_RSEQ=y
 CONFIG_HAVE_FUNCTION_ARG_ACCESS_API=y
+CONFIG_HAVE_CLK=y
 CONFIG_HAVE_HW_BREAKPOINT=y
 CONFIG_HAVE_MIXED_BREAKPOINTS_REGS=y
 CONFIG_HAVE_USER_RETURN_NOTIFIER=y
@@ -669,6 +657,7 @@ CONFIG_HAVE_ARCH_SECCOMP_FILTER=y
 CONFIG_SECCOMP_FILTER=y
 CONFIG_HAVE_ARCH_STACKLEAK=y
 CONFIG_HAVE_STACKPROTECTOR=y
+CONFIG_CC_HAS_STACKPROTECTOR_NONE=y
 # CONFIG_STACKPROTECTOR is not set
 CONFIG_HAVE_ARCH_WITHIN_STACK_FRAMES=y
 CONFIG_HAVE_CONTEXT_TRACKING=y
@@ -682,10 +671,12 @@ CONFIG_ARCH_WANT_HUGE_PMD_SHARE=y
 CONFIG_HAVE_ARCH_SOFT_DIRTY=y
 CONFIG_HAVE_MOD_ARCH_SPECIFIC=y
 CONFIG_MODULES_USE_ELF_RELA=y
+CONFIG_HAVE_IRQ_EXIT_ON_IRQ_STACK=y
 CONFIG_ARCH_HAS_ELF_RANDOMIZE=y
 CONFIG_HAVE_ARCH_MMAP_RND_BITS=y
 CONFIG_HAVE_EXIT_THREAD=y
 CONFIG_ARCH_MMAP_RND_BITS=28
+CONFIG_HAVE_COPY_THREAD_TLS=y
 CONFIG_HAVE_STACK_VALIDATION=y
 CONFIG_HAVE_RELIABLE_STACKTRACE=y
 CONFIG_COMPAT_32BIT_TIME=y
@@ -707,6 +698,7 @@ CONFIG_ARCH_HAS_MEM_ENCRYPT=y
 CONFIG_ARCH_HAS_GCOV_PROFILE_ALL=y
 # end of GCOV-based kernel profiling

+CONFIG_PLUGIN_HOSTCC=""
 CONFIG_HAVE_GCC_PLUGINS=y
 # end of General architecture-dependent options

@@ -740,7 +732,6 @@ CONFIG_BLK_CGROUP_IOLATENCY=y
 # CONFIG_BLK_CGROUP_IOCOST is not set
 CONFIG_BLK_DEBUG_FS=y
 # CONFIG_BLK_SED_OPAL is not set
-# CONFIG_BLK_INLINE_ENCRYPTION is not set

 #
 # Partition Types
@@ -788,7 +779,6 @@ CONFIG_ARCH_USE_QUEUED_SPINLOCKS=y
 CONFIG_QUEUED_SPINLOCKS=y
 CONFIG_ARCH_USE_QUEUED_RWLOCKS=y
 CONFIG_QUEUED_RWLOCKS=y
-CONFIG_ARCH_HAS_NON_OVERLAPPING_ADDRESS_SPACE=y
 CONFIG_ARCH_HAS_SYNC_CORE_BEFORE_USERMODE=y
 CONFIG_ARCH_HAS_SYSCALL_WRAPPER=y
 CONFIG_FREEZER=y
@@ -811,9 +801,11 @@ CONFIG_SELECT_MEMORY_MODEL=y
 CONFIG_SPARSEMEM_MANUAL=y
 CONFIG_SPARSEMEM=y
 CONFIG_NEED_MULTIPLE_NODES=y
+CONFIG_HAVE_MEMORY_PRESENT=y
 CONFIG_SPARSEMEM_EXTREME=y
 CONFIG_SPARSEMEM_VMEMMAP_ENABLE=y
 CONFIG_SPARSEMEM_VMEMMAP=y
+CONFIG_HAVE_MEMBLOCK_NODE_MAP=y
 CONFIG_HAVE_FAST_GUP=y
 CONFIG_MEMORY_ISOLATION=y
 # CONFIG_MEMORY_HOTPLUG is not set
@@ -821,7 +813,6 @@ CONFIG_SPLIT_PTLOCK_CPUS=4
 CONFIG_MEMORY_BALLOON=y
 CONFIG_BALLOON_COMPACTION=y
 CONFIG_COMPACTION=y
-CONFIG_PAGE_REPORTING=y
 CONFIG_MIGRATION=y
 CONFIG_CONTIG_ALLOC=y
 CONFIG_PHYS_ADDR_T_64BIT=y
@@ -837,6 +828,7 @@ CONFIG_TRANSPARENT_HUGEPAGE=y
 CONFIG_TRANSPARENT_HUGEPAGE_MADVISE=y
 CONFIG_ARCH_WANTS_THP_SWAP=y
 CONFIG_THP_SWAP=y
+CONFIG_TRANSPARENT_HUGE_PAGECACHE=y
 # CONFIG_CLEANCACHE is not set
 # CONFIG_FRONTSWAP is not set
 CONFIG_CMA=y
@@ -957,7 +949,6 @@ CONFIG_IPV6_SUBTREES=y
 CONFIG_IPV6_SEG6_LWTUNNEL=y
 # CONFIG_IPV6_SEG6_HMAC is not set
 CONFIG_IPV6_SEG6_BPF=y
-# CONFIG_IPV6_RPL_LWTUNNEL is not set
 CONFIG_NETLABEL=y
 # CONFIG_MPTCP is not set
 CONFIG_NETWORK_SECMARK=y
@@ -988,7 +979,6 @@ CONFIG_NETFILTER_XTABLES=y
 #
 # Xtables targets
 #
-# CONFIG_NETFILTER_XT_TARGET_AUDIT is not set
 # CONFIG_NETFILTER_XT_TARGET_CLASSIFY is not set
 # CONFIG_NETFILTER_XT_TARGET_HMARK is not set
 # CONFIG_NETFILTER_XT_TARGET_IDLETIMER is not set
@@ -1192,7 +1182,6 @@ CONFIG_NET_ACT_BPF=y
 # CONFIG_NET_ACT_SKBMOD is not set
 # CONFIG_NET_ACT_IFE is not set
 # CONFIG_NET_ACT_TUNNEL_KEY is not set
-# CONFIG_NET_ACT_GATE is not set
 CONFIG_NET_TC_SKB_EXT=y
 CONFIG_NET_SCH_FIFO=y
 CONFIG_DCB=y
@@ -1208,7 +1197,6 @@ CONFIG_MPLS=y
 # CONFIG_HSR is not set
 # CONFIG_NET_SWITCHDEV is not set
 # CONFIG_NET_L3_MASTER_DEV is not set
-# CONFIG_QRTR is not set
 # CONFIG_NET_NCSI is not set
 CONFIG_RPS=y
 CONFIG_RFS_ACCEL=y
@@ -1307,11 +1295,6 @@ CONFIG_PCI_LABEL=y
 # CONFIG_PCI_MESON is not set
 # end of DesignWare PCI Core Support

-#
-# Mobiveil PCIe Core Support
-#
-# end of Mobiveil PCIe Core Support
-
 #
 # Cadence PCIe controllers support
 #
@@ -1367,7 +1350,6 @@ CONFIG_DMA_SHARED_BUFFER=y
 #
 # Bus devices
 #
-# CONFIG_MHI_BUS is not set
 # end of Bus devices

 # CONFIG_CONNECTOR is not set
@@ -1595,7 +1577,23 @@ CONFIG_HW_CONSOLE=y
 CONFIG_VT_HW_CONSOLE_BINDING=y
 CONFIG_UNIX98_PTYS=y
 # CONFIG_LEGACY_PTYS is not set
+CONFIG_SERIAL_NONSTANDARD=y
+# CONFIG_ROCKETPORT is not set
+# CONFIG_CYCLADES is not set
+# CONFIG_MOXA_INTELLIO is not set
+# CONFIG_MOXA_SMARTIO is not set
+# CONFIG_SYNCLINK is not set
+# CONFIG_SYNCLINKMP is not set
+# CONFIG_SYNCLINK_GT is not set
+# CONFIG_NOZOMI is not set
+# CONFIG_ISI is not set
+# CONFIG_N_HDLC is not set
+# CONFIG_N_GSM is not set
+# CONFIG_TRACE_SINK is not set
+# CONFIG_NULL_TTY is not set
 CONFIG_LDISC_AUTOLOAD=y
+CONFIG_DEVMEM=y
+CONFIG_DEVKMEM=y

 #
 # Serial drivers
@@ -1628,7 +1626,6 @@ CONFIG_SERIAL_8250_RSA=y
 CONFIG_SERIAL_CORE=y
 CONFIG_SERIAL_CORE_CONSOLE=y
 # CONFIG_SERIAL_JSM is not set
-# CONFIG_SERIAL_LANTIQ is not set
 # CONFIG_SERIAL_SCCNXP is not set
 # CONFIG_SERIAL_ALTERA_JTAGUART is not set
 # CONFIG_SERIAL_ALTERA_UART is not set
@@ -1636,36 +1633,18 @@ CONFIG_SERIAL_CORE_CONSOLE=y
 # CONFIG_SERIAL_RP2 is not set
 # CONFIG_SERIAL_FSL_LPUART is not set
 # CONFIG_SERIAL_FSL_LINFLEXUART is not set
-# CONFIG_SERIAL_SPRD is not set
 # end of Serial drivers

-CONFIG_SERIAL_NONSTANDARD=y
-# CONFIG_ROCKETPORT is not set
-# CONFIG_CYCLADES is not set
-# CONFIG_MOXA_INTELLIO is not set
-# CONFIG_MOXA_SMARTIO is not set
-# CONFIG_SYNCLINK is not set
-# CONFIG_SYNCLINKMP is not set
-# CONFIG_SYNCLINK_GT is not set
-# CONFIG_ISI is not set
-# CONFIG_N_HDLC is not set
-# CONFIG_N_GSM is not set
-# CONFIG_NOZOMI is not set
-# CONFIG_NULL_TTY is not set
-# CONFIG_TRACE_SINK is not set
-CONFIG_HVC_DRIVER=y
 # CONFIG_SERIAL_DEV_BUS is not set
 # CONFIG_TTY_PRINTK is not set
+CONFIG_HVC_DRIVER=y
 CONFIG_VIRTIO_CONSOLE=y
 # CONFIG_IPMI_HANDLER is not set
 # CONFIG_HW_RANDOM is not set
+# CONFIG_NVRAM is not set
 # CONFIG_APPLICOM is not set
 # CONFIG_MWAVE is not set
-CONFIG_DEVMEM=y
-CONFIG_DEVKMEM=y
-# CONFIG_NVRAM is not set
 # CONFIG_RAW_DRIVER is not set
-CONFIG_DEVPORT=y
 CONFIG_HPET=y
 # CONFIG_HPET_MMAP is not set
 # CONFIG_HANGCHECK_TIMER is not set
@@ -1678,6 +1657,7 @@ CONFIG_TCG_TIS=y
 CONFIG_TCG_CRB=y
 # CONFIG_TCG_VTPM_PROXY is not set
 # CONFIG_TELCLOCK is not set
+CONFIG_DEVPORT=y
 # CONFIG_XILLYBUS is not set
 # end of Character devices

@@ -1733,7 +1713,6 @@ CONFIG_POWER_SUPPLY=y
 # CONFIG_CHARGER_MAX8903 is not set
 # CONFIG_HWMON is not set
 CONFIG_THERMAL=y
-# CONFIG_THERMAL_NETLINK is not set
 # CONFIG_THERMAL_STATISTICS is not set
 CONFIG_THERMAL_EMERGENCY_POWEROFF_DELAY_MS=0
 CONFIG_THERMAL_WRITABLE_TRIPS=y
@@ -1792,7 +1771,6 @@ CONFIG_BCMA_POSSIBLE=y

 # CONFIG_REGULATOR is not set
 # CONFIG_RC_CORE is not set
-# CONFIG_MEDIA_CEC_SUPPORT is not set
 # CONFIG_MEDIA_SUPPORT is not set

 #
@@ -1814,6 +1792,11 @@ CONFIG_VGA_ARB_MAX_GPUS=16
 #
 # end of ARM devices

+#
+# ACP (Audio CoProcessor) Configuration
+#
+# end of ACP (Audio CoProcessor) Configuration
+
 #
 # Frame buffer Devices
 #
@@ -1879,6 +1862,7 @@ CONFIG_FB_VESA=y
 #
 # CONFIG_LCD_CLASS_DEVICE is not set
 CONFIG_BACKLIGHT_CLASS_DEVICE=y
+CONFIG_BACKLIGHT_GENERIC=y
 # CONFIG_BACKLIGHT_APPLE is not set
 # CONFIG_BACKLIGHT_QCOM_WLED is not set
 # CONFIG_BACKLIGHT_SAHARA is not set
@@ -1938,7 +1922,6 @@ CONFIG_HID_DRAGONRISE=y
 CONFIG_HID_EZKEY=y
 # CONFIG_HID_GEMBIRD is not set
 # CONFIG_HID_GFRM is not set
-# CONFIG_HID_GLORIOUS is not set
 # CONFIG_HID_KEYTOUCH is not set
 CONFIG_HID_KYE=y
 # CONFIG_HID_WALTOP is not set
@@ -2018,7 +2001,6 @@ CONFIG_RTC_MC146818_LIB=y
 CONFIG_SYNC_FILE=y
 # CONFIG_SW_SYNC is not set
 # CONFIG_UDMABUF is not set
-# CONFIG_DMABUF_MOVE_NOTIFY is not set
 # CONFIG_DMABUF_SELFTESTS is not set
 # CONFIG_DMABUF_HEAPS is not set
 # end of DMABUF options
@@ -2034,10 +2016,6 @@ CONFIG_VIRTIO_PCI_LEGACY=y
 CONFIG_VIRTIO_BALLOON=y
 # CONFIG_VIRTIO_INPUT is not set
 # CONFIG_VIRTIO_MMIO is not set
-# CONFIG_VDPA is not set
-CONFIG_VHOST_MENU=y
-# CONFIG_VHOST_NET is not set
-# CONFIG_VHOST_CROSS_ENDIAN_LEGACY is not set

 #
 # Microsoft Hyper-V guest support
@@ -2051,10 +2029,15 @@ CONFIG_PMC_ATOM=y
 # CONFIG_MFD_CROS_EC is not set
 # CONFIG_CHROME_PLATFORMS is not set
 # CONFIG_MELLANOX_PLATFORM is not set
-CONFIG_HAVE_CLK=y
 CONFIG_CLKDEV_LOOKUP=y
 CONFIG_HAVE_CLK_PREPARE=y
 CONFIG_COMMON_CLK=y
+
+#
+# Common Clock Framework
+#
+# end of Common Clock Framework
+
 # CONFIG_HWSPINLOCK is not set

 #
@@ -2248,13 +2231,12 @@ CONFIG_INOTIFY_USER=y
 # end of CD-ROM/DVD Filesystems

 #
-# DOS/FAT/EXFAT/NT Filesystems
+# DOS/FAT/NT Filesystems
 #
 # CONFIG_MSDOS_FS is not set
 # CONFIG_VFAT_FS is not set
-# CONFIG_EXFAT_FS is not set
 # CONFIG_NTFS_FS is not set
-# end of DOS/FAT/EXFAT/NT Filesystems
+# end of DOS/FAT/NT Filesystems

 #
 # Pseudo filesystems
@@ -2270,7 +2252,6 @@ CONFIG_SYSFS=y
 CONFIG_TMPFS=y
 CONFIG_TMPFS_POSIX_ACL=y
 CONFIG_TMPFS_XATTR=y
-# CONFIG_TMPFS_INODE64 is not set
 CONFIG_HUGETLBFS=y
 CONFIG_HUGETLB_PAGE=y
 CONFIG_MEMFD_CREATE=y
@@ -2351,6 +2332,7 @@ CONFIG_IO_WQ=y
 CONFIG_KEYS=y
 # CONFIG_KEYS_REQUEST_CACHE is not set
 # CONFIG_PERSISTENT_KEYRINGS is not set
+# CONFIG_BIG_KEYS is not set
 # CONFIG_TRUSTED_KEYS is not set
 # CONFIG_ENCRYPTED_KEYS is not set
 # CONFIG_KEY_DH_OPERATIONS is not set
@@ -2361,19 +2343,10 @@ CONFIG_SECURITY_NETWORK=y
 CONFIG_PAGE_TABLE_ISOLATION=y
 # CONFIG_SECURITY_NETWORK_XFRM is not set
 # CONFIG_SECURITY_PATH is not set
-CONFIG_LSM_MMAP_MIN_ADDR=65536
 CONFIG_HAVE_HARDENED_USERCOPY_ALLOCATOR=y
 # CONFIG_HARDENED_USERCOPY is not set
 # CONFIG_FORTIFY_SOURCE is not set
 # CONFIG_STATIC_USERMODEHELPER is not set
-CONFIG_SECURITY_SELINUX=y
-# CONFIG_SECURITY_SELINUX_BOOTPARAM is not set
-# CONFIG_SECURITY_SELINUX_DISABLE is not set
-CONFIG_SECURITY_SELINUX_DEVELOP=y
-CONFIG_SECURITY_SELINUX_AVC_STATS=y
-CONFIG_SECURITY_SELINUX_CHECKREQPROT_VALUE=0
-CONFIG_SECURITY_SELINUX_SIDTAB_HASH_BITS=9
-CONFIG_SECURITY_SELINUX_SID2STR_CACHE_SIZE=256
 # CONFIG_SECURITY_SMACK is not set
 # CONFIG_SECURITY_TOMOYO is not set
 # CONFIG_SECURITY_APPARMOR is not set
@@ -2383,10 +2356,8 @@ CONFIG_SECURITY_SELINUX_SID2STR_CACHE_SIZE=256
 # CONFIG_SECURITY_LOCKDOWN_LSM is not set
 CONFIG_INTEGRITY=y
 # CONFIG_INTEGRITY_SIGNATURE is not set
-CONFIG_INTEGRITY_AUDIT=y
 CONFIG_IMA=y
 CONFIG_IMA_MEASURE_PCR_IDX=10
-CONFIG_IMA_LSM_RULES=y
 # CONFIG_IMA_TEMPLATE is not set
 CONFIG_IMA_NG_TEMPLATE=y
 # CONFIG_IMA_SIG_TEMPLATE is not set
@@ -2399,11 +2370,12 @@ CONFIG_IMA_DEFAULT_HASH="sha1"
 # CONFIG_IMA_APPRAISE is not set
 CONFIG_IMA_MEASURE_ASYMMETRIC_KEYS=y
 CONFIG_IMA_QUEUE_EARLY_BOOT_KEYS=y
-# CONFIG_IMA_SECURE_AND_OR_TRUSTED_BOOT is not set
 # CONFIG_EVM is not set
-# CONFIG_DEFAULT_SECURITY_SELINUX is not set
 CONFIG_DEFAULT_SECURITY_DAC=y
 CONFIG_LSM="selinux,bpf"
+CONFIG_BPF_LSM=y
+CONFIG_AUDIT=y
+CONFIG_SECURITY_SELINUX=y

 #
 # Kernel hardening options
@@ -2651,13 +2623,11 @@ CONFIG_GENERIC_STRNLEN_USER=y
 CONFIG_GENERIC_NET_UTILS=y
 CONFIG_GENERIC_FIND_FIRST_BIT=y
 # CONFIG_CORDIC is not set
-# CONFIG_PRIME_NUMBERS is not set
 CONFIG_RATIONAL=y
 CONFIG_GENERIC_PCI_IOMAP=y
 CONFIG_GENERIC_IOMAP=y
 CONFIG_ARCH_USE_CMPXCHG_LOCKREF=y
 CONFIG_ARCH_HAS_FAST_MULTIPLIER=y
-CONFIG_ARCH_USE_SYM_ANNOTATIONS=y
 CONFIG_CRC_CCITT=y
 CONFIG_CRC16=y
 CONFIG_CRC_T10DIF=y
@@ -2678,7 +2648,6 @@ CONFIG_XXHASH=y
 CONFIG_ZLIB_INFLATE=y
 CONFIG_LZO_DECOMPRESS=y
 CONFIG_LZ4_DECOMPRESS=y
-CONFIG_ZSTD_DECOMPRESS=y
 CONFIG_XZ_DEC=y
 CONFIG_XZ_DEC_X86=y
 # CONFIG_XZ_DEC_POWERPC is not set
@@ -2694,14 +2663,12 @@ CONFIG_DECOMPRESS_LZMA=y
 CONFIG_DECOMPRESS_XZ=y
 CONFIG_DECOMPRESS_LZO=y
 CONFIG_DECOMPRESS_LZ4=y
-CONFIG_DECOMPRESS_ZSTD=y
 CONFIG_GENERIC_ALLOCATOR=y
 CONFIG_XARRAY_MULTI=y
 CONFIG_ASSOCIATIVE_ARRAY=y
 CONFIG_HAS_IOMEM=y
 CONFIG_HAS_IOPORT_MAP=y
 CONFIG_HAS_DMA=y
-CONFIG_DMA_OPS=y
 CONFIG_NEED_SG_DMA_LENGTH=y
 CONFIG_NEED_DMA_MAP_STATE=y
 CONFIG_ARCH_DMA_ADDR_T_64BIT=y
@@ -2769,7 +2736,6 @@ CONFIG_CONSOLE_LOGLEVEL_QUIET=4
 CONFIG_MESSAGE_LOGLEVEL_DEFAULT=4
 # CONFIG_BOOT_PRINTK_DELAY is not set
 # CONFIG_DYNAMIC_DEBUG is not set
-# CONFIG_DYNAMIC_DEBUG_CORE is not set
 CONFIG_SYMBOLIC_ERRNAME=y
 CONFIG_DEBUG_BUGVERBOSE=y
 # end of printk and dmesg options
@@ -2779,7 +2745,6 @@ CONFIG_DEBUG_BUGVERBOSE=y
 #
 CONFIG_DEBUG_INFO=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_BTF=y
@@ -2789,9 +2754,9 @@ CONFIG_FRAME_WARN=2048
 # CONFIG_STRIP_ASM_SYMS is not set
 # CONFIG_READABLE_ASM is not set
 # CONFIG_HEADERS_INSTALL is not set
+CONFIG_OPTIMIZE_INLINING=y
 # CONFIG_DEBUG_SECTION_MISMATCH is not set
 CONFIG_SECTION_MISMATCH_WARN_ONLY=y
-# CONFIG_DEBUG_FORCE_FUNCTION_ALIGN_32B is not set
 CONFIG_STACK_VALIDATION=y
 # CONFIG_DEBUG_FORCE_WEAK_PER_CPU is not set
 # end of Compile-time checks and compiler options
@@ -2802,15 +2767,12 @@ CONFIG_STACK_VALIDATION=y
 CONFIG_MAGIC_SYSRQ=y
 CONFIG_MAGIC_SYSRQ_DEFAULT_ENABLE=0x1
 CONFIG_MAGIC_SYSRQ_SERIAL=y
-CONFIG_MAGIC_SYSRQ_SERIAL_SEQUENCE=""
 CONFIG_DEBUG_FS=y
-CONFIG_DEBUG_FS_ALLOW_ALL=y
-# CONFIG_DEBUG_FS_DISALLOW_MOUNT is not set
-# CONFIG_DEBUG_FS_ALLOW_NONE is not set
 CONFIG_HAVE_ARCH_KGDB=y
 # CONFIG_KGDB is not set
 CONFIG_ARCH_HAS_UBSAN_SANITIZE_ALL=y
 # CONFIG_UBSAN is not set
+CONFIG_UBSAN_ALIGNMENT=y
 # end of Generic Kernel Debugging Instruments

 CONFIG_DEBUG_KERNEL=y
@@ -2825,8 +2787,6 @@ CONFIG_DEBUG_MISC=y
 # CONFIG_PAGE_POISONING is not set
 # CONFIG_DEBUG_PAGE_REF is not set
 # CONFIG_DEBUG_RODATA_TEST is not set
-CONFIG_ARCH_HAS_DEBUG_WX=y
-# CONFIG_DEBUG_WX is not set
 CONFIG_GENERIC_PTDUMP=y
 # CONFIG_PTDUMP_DEBUGFS is not set
 # CONFIG_DEBUG_OBJECTS is not set
@@ -2836,16 +2796,14 @@ CONFIG_HAVE_DEBUG_KMEMLEAK=y
 # CONFIG_DEBUG_KMEMLEAK is not set
 # CONFIG_DEBUG_STACK_USAGE is not set
 CONFIG_SCHED_STACK_END_CHECK=y
-CONFIG_ARCH_HAS_DEBUG_VM_PGTABLE=y
 # CONFIG_DEBUG_VM is not set
-# CONFIG_DEBUG_VM_PGTABLE is not set
 CONFIG_ARCH_HAS_DEBUG_VIRTUAL=y
 # CONFIG_DEBUG_VIRTUAL is not set
 CONFIG_DEBUG_MEMORY_INIT=y
 # CONFIG_DEBUG_PER_CPU_MAPS is not set
 CONFIG_HAVE_ARCH_KASAN=y
 CONFIG_HAVE_ARCH_KASAN_VMALLOC=y
-CONFIG_CC_HAS_KASAN_GENERIC=y
+CONFIG_KASAN_STACK=1
 # end of Memory Debugging

 # CONFIG_DEBUG_SHIRQ is not set
@@ -2870,7 +2828,6 @@ CONFIG_DEFAULT_HUNG_TASK_TIMEOUT=120
 # CONFIG_BOOTPARAM_HUNG_TASK_PANIC is not set
 CONFIG_BOOTPARAM_HUNG_TASK_PANIC_VALUE=0
 # CONFIG_WQ_WATCHDOG is not set
-# CONFIG_TEST_LOCKUP is not set
 # end of Debug Oops, Lockups and Hangs

 #
@@ -2889,7 +2846,6 @@ CONFIG_DEBUG_PREEMPT=y
 #
 CONFIG_LOCK_DEBUGGING_SUPPORT=y
 CONFIG_PROVE_LOCKING=y
-# CONFIG_PROVE_RAW_LOCK_NESTING is not set
 # CONFIG_LOCK_STAT is not set
 CONFIG_DEBUG_RT_MUTEXES=y
 CONFIG_DEBUG_SPINLOCK=y
@@ -2906,7 +2862,6 @@ CONFIG_DEBUG_ATOMIC_SLEEP=y
 # end of Lock Debugging (spinlocks, mutexes, etc...)

 CONFIG_TRACE_IRQFLAGS=y
-CONFIG_TRACE_IRQFLAGS_NMI=y
 CONFIG_STACKTRACE=y
 # CONFIG_WARN_ALL_UNSEEDED_RANDOM is not set
 # CONFIG_DEBUG_KOBJECT is not set
@@ -2929,7 +2884,6 @@ CONFIG_DEBUG_CREDENTIALS=y
 CONFIG_PROVE_RCU=y
 # CONFIG_RCU_PERF_TEST is not set
 # CONFIG_RCU_TORTURE_TEST is not set
-# CONFIG_RCU_REF_SCALE_TEST is not set
 CONFIG_RCU_CPU_STALL_TIMEOUT=60
 # CONFIG_RCU_TRACE is not set
 # CONFIG_RCU_EQS_DEBUG is not set
@@ -2967,6 +2921,7 @@ CONFIG_DYNAMIC_FTRACE_WITH_REGS=y
 CONFIG_DYNAMIC_FTRACE_WITH_DIRECT_CALLS=y
 # CONFIG_FUNCTION_PROFILER is not set
 # CONFIG_STACK_TRACER is not set
+# CONFIG_PREEMPTIRQ_EVENTS is not set
 # CONFIG_IRQSOFF_TRACER is not set
 # CONFIG_PREEMPT_TRACER is not set
 # CONFIG_SCHED_TRACER is not set
@@ -2986,7 +2941,6 @@ CONFIG_DYNAMIC_EVENTS=y
 CONFIG_PROBE_EVENTS=y
 CONFIG_BPF_KPROBE_OVERRIDE=y
 CONFIG_FTRACE_MCOUNT_RECORD=y
-# CONFIG_SYNTH_EVENTS is not set
 # CONFIG_HIST_TRIGGERS is not set
 # CONFIG_TRACE_EVENT_INJECT is not set
 # CONFIG_TRACEPOINT_BENCHMARK is not set
@@ -2998,7 +2952,6 @@ CONFIG_FTRACE_MCOUNT_RECORD=y
 # CONFIG_KPROBE_EVENT_GEN_TEST is not set
 # CONFIG_PROVIDE_OHCI1394_DMA_INIT is not set
 # CONFIG_SAMPLES is not set
-CONFIG_HAVE_ARCH_KCSAN=y
 CONFIG_ARCH_HAS_DEVMEM_IS_ALLOWED=y
 # CONFIG_STRICT_DEVMEM is not set

@@ -3006,12 +2959,13 @@ CONFIG_ARCH_HAS_DEVMEM_IS_ALLOWED=y
 # x86 Debugging
 #
 CONFIG_TRACE_IRQFLAGS_SUPPORT=y
-CONFIG_TRACE_IRQFLAGS_NMI_SUPPORT=y
 CONFIG_X86_VERBOSE_BOOTUP=y
 CONFIG_EARLY_PRINTK=y
 # CONFIG_EARLY_PRINTK_DBGP is not set
 # CONFIG_EARLY_PRINTK_USB_XDBC is not set
 # CONFIG_EFI_PGT_DUMP is not set
+# CONFIG_DEBUG_WX is not set
+CONFIG_DOUBLEFAULT=y
 # CONFIG_DEBUG_TLBFLUSH is not set
 # CONFIG_IOMMU_DEBUG is not set
 CONFIG_HAVE_MMIOTRACE_SUPPORT=y
@@ -3038,16 +2992,9 @@ CONFIG_UNWINDER_ORC=y
 # CONFIG_NOTIFIER_ERROR_INJECTION is not set
 CONFIG_FUNCTION_ERROR_INJECTION=y
 CONFIG_FAULT_INJECTION=y
-# CONFIG_FAILSLAB is not set
-# CONFIG_FAIL_PAGE_ALLOC is not set
-# CONFIG_FAIL_MAKE_REQUEST is not set
-# CONFIG_FAIL_IO_TIMEOUT is not set
-# CONFIG_FAIL_FUTEX is not set
 CONFIG_FAULT_INJECTION_DEBUG_FS=y
 CONFIG_FAIL_FUNCTION=y
 CONFIG_ARCH_HAS_KCOV=y
-CONFIG_CC_HAS_SANCOV_TRACE_PC=y
-# CONFIG_KCOV is not set
 # CONFIG_RUNTIME_TESTING_MENU is not set
 # CONFIG_MEMTEST is not set
 # end of Kernel Testing and Coverage
--- a/travis-ci/vmtest/configs/whitelist/WHITELIST-4.9.0
+++ b/travis-ci/vmtest/configs/whitelist/WHITELIST-4.9.0
@@ -1,7 +0,0 @@
-btf_dump
-core_retro
-cpu_mask
-hashmap
-perf_buffer
-section_names
-
--- a/travis-ci/vmtest/helpers.sh
+++ b/travis-ci/vmtest/helpers.sh
@@ -1,12 +0,0 @@
-# $1 - start or end
-# $2 - fold identifier, no spaces
-# $3 - fold section description
-travis_fold() {
-	local YELLOW='\033[1;33m'
-	local NOCOLOR='\033[0m'
-	echo travis_fold:$1:$2
-	if [ ! -z "${3:-}" ]; then
-		echo -e "${YELLOW}$3${NOCOLOR}"
-	fi
-	echo
-}
--- a/travis-ci/vmtest/mkrootfs.sh
+++ b/travis-ci/vmtest/mkrootfs.sh
@@ -81,7 +81,6 @@ packages=(
 	binutils
 	elfutils
 	glibc
-	iproute2
 	# selftests test_verifier dependencies.
 	libcap
 )
@@ -102,6 +101,15 @@ rm -rf "$root/usr/share/{doc,help,man,texinfo}"

 chroot "${root}" /bin/busybox --install

+cat > "$root/etc/fstab" << "EOF"
+dev /dev devtmpfs rw,nosuid 0 0
+proc /proc proc rw,nosuid,nodev,noexec 0 0
+sys /sys sysfs rw,nosuid,nodev,noexec 0 0
+debugfs /sys/kernel/debug debugfs mode=755,realtime 0 0
+bpffs /sys/fs/bpf bpf realtime 0 0
+EOF
+chmod 644 "$root/etc/fstab"
+
 cat > "$root/etc/inittab" << "EOF"
 ::sysinit:/etc/init.d/rcS
 ::ctrlaltdel:/sbin/reboot
@@ -115,29 +123,13 @@ mkdir -m 755 "$root/etc/init.d" "$root/etc/rcS.d"
 cat > "$root/etc/rcS.d/S10-mount" << "EOF"
 #!/bin/sh

-set -eux
-
-/bin/mount proc /proc -t proc
-
-# Mount devtmpfs if not mounted
-if [[ -z $(/bin/mount -l -t devtmpfs) ]]; then
-	/bin/mount devtmpfs /dev -t devtmpfs
-fi
-
-/bin/mount sysfs /sys -t sysfs
-/bin/mount bpffs /sys/fs/bpf -t bpf
-/bin/mount debugfs /sys/kernel/debug -t debugfs
-
-echo 'Listing currently mounted file systems'
-/bin/mount
+/bin/mount -a
 EOF
 chmod 755 "$root/etc/rcS.d/S10-mount"

 cat > "$root/etc/rcS.d/S40-network" << "EOF"
 #!/bin/sh

-set -eux
-
 ip link set lo up
 EOF
 chmod 755 "$root/etc/rcS.d/S40-network"
@@ -145,8 +137,6 @@ chmod 755 "$root/etc/rcS.d/S40-network"
 cat > "$root/etc/init.d/rcS" << "EOF"
 #!/bin/sh

-set -eux
-
 for path in /etc/rcS.d/S*; do
 	[ -x "$path" ] && "$path"
 done
--- a/travis-ci/vmtest/prepare_selftests-5.5.0.sh
+++ b/travis-ci/vmtest/prepare_selftests-5.5.0.sh
@@ -0,0 +1,12 @@
+#!/bin/bash
+
+set -euxo pipefail
+
+# these tests expect vmlinux.h to have latest defiition of bpf_devmap_val xdp_md->egress_ifindex
+rm progs/test_xdp_with_devmap_helpers.c
+rm progs/test_xdp_devmap_helpers.c
+rm prog_tests/xdp_devmap_attach.c
+
+# no BPF_F_NO_PREALLOC in BTF and no sk_msg_md->sk field
+rm progs/test_skmsg_load_helpers.c
+rm prog_tests/sockmap_basic.c
--- a/travis-ci/vmtest/prepare_selftests.sh
+++ b/travis-ci/vmtest/prepare_selftests.sh
@@ -1,8 +1,6 @@
 #!/bin/bash

-set -eu
-
-source $(cd $(dirname $0) && pwd)/helpers.sh
+set -eux

 REPO_PATH=$1

@@ -10,11 +8,7 @@ ${VMTEST_ROOT}/checkout_latest_kernel.sh ${REPO_PATH}
 cd ${REPO_PATH}

 if [[ "${KERNEL}" = 'LATEST' ]]; then
-	travis_fold start build_kernel "Kernel build"
-
 	cp ${VMTEST_ROOT}/configs/latest.config .config
 	make -j $((4*$(nproc))) olddefconfig all
-
-	travis_fold end build_kernel
 fi

--- a/travis-ci/vmtest/run.sh
+++ b/travis-ci/vmtest/run.sh
@@ -3,8 +3,6 @@
 set -uo pipefail
 trap 'exit 2' ERR

-source $(cd $(dirname $0) && pwd)/helpers.sh
-
 usage () {
 	USAGE_STRING="usage: $0 [-k KERNELRELEASE|-b DIR] [[-r ROOTFSVERSION] [-fo]|-I] [-Si] [-d DIR] IMG
       $0 [-k KERNELRELEASE] -l
@@ -277,10 +275,6 @@ if [[ $SKIPIMG -eq 0 && ! -v ROOTFSVERSION ]]; then
 fi

 echo "Kernel release: $KERNELRELEASE" >&2
-echo
-
-travis_fold start vmlinux_setup "Preparing Linux image"
-
 if (( SKIPIMG )); then
 	echo "Not extracting root filesystem" >&2
 else
@@ -372,15 +366,11 @@ else
 	sudo chmod 644 "$vmlinux"
 fi

-travis_fold end vmlinux_setup
-
 LIBBPF_PATH="${REPO_ROOT}" \
 	REPO_PATH="travis-ci/vmtest/bpf-next" \
 	VMTEST_ROOT="${VMTEST_ROOT}" \
 	VMLINUX_BTF=${vmlinux} ${VMTEST_ROOT}/build_selftests.sh

-travis_fold start vm_init "Starting virtual machine..."
-
 if (( SKIPSOURCE )); then
 	echo "Not copying source files..." >&2
 else
@@ -411,7 +401,7 @@ if [[ ! -z SETUPCMD ]]; then
 	if [[ -v BUILDDIR ]]; then kernel='latest'; fi
 	setup_envvars="export KERNEL=${kernel}"
 	setup_script=$(printf "#!/bin/sh
-set -eux
+set -e

 echo 'Running setup commands'
 %s
@@ -425,15 +415,13 @@ sudo chmod 755 "$mnt/etc/rcS.d/S50-run-tests"

 poweroff_script="#!/bin/sh

-echo travis_fold:start:shutdown
-echo -e '\033[1;33mShutdown\033[0m\n'
-
 poweroff"
 echo "${poweroff_script}" | sudo tee "$mnt/etc/rcS.d/S99-poweroff" > /dev/null
 sudo chmod 755 "$mnt/etc/rcS.d/S99-poweroff"

 sudo umount "$mnt"

+echo "Starting virtual machine..." >&2
 qemu-system-x86_64 -nodefaults -display none -serial mon:stdio \
 	-cpu kvm64 -enable-kvm -smp "$(nproc)" -m 2G \
 	-drive file="$IMG",format=raw,index=1,media=disk,if=virtio,cache=none \
@@ -447,7 +435,4 @@ else
 	exitstatus=1
 fi
 sudo umount "$mnt"
-
-travis_fold end shutdown
-
 exit "$exitstatus"
--- a/travis-ci/vmtest/run_selftests.sh
+++ b/travis-ci/vmtest/run_selftests.sh
@@ -1,35 +1,23 @@
 #!/bin/bash

-set -euo pipefail
-
-source $(cd $(dirname $0) && pwd)/helpers.sh
+set -euxo pipefail

 test_progs() {
-	if [[ "${KERNEL}" != '4.9.0' ]]; then
-		travis_fold start test_progs "Testing test_progs"
-		./test_progs ${BLACKLIST:+-b$BLACKLIST} ${WHITELIST:+-t$WHITELIST}
-		travis_fold end test_progs
-	fi
-
-	travis_fold start test_progs-no_alu32 "Testing test_progs-no_alu32"
-	./test_progs-no_alu32 ${BLACKLIST:+-b$BLACKLIST} ${WHITELIST:+-t$WHITELIST}
-	travis_fold end test_progs-no_alu32
+	echo TEST_PROGS
+	./test_progs ${BLACKLIST:+-b$BLACKLIST} ${WHITELIST:+-t$WHITELIST}
 }

 test_maps() {
-	travis_fold start test_maps "Testing test_maps"
+	echo TEST_MAPS
+	# Allow failing on older kernels.
 	./test_maps
-	travis_fold end test_maps
 }

 test_verifier() {
-	travis_fold start test_verifier "Testing test_verifier"
+	echo TEST_VERIFIER
 	./test_verifier
-	travis_fold end test_verifier
 }

-travis_fold end vm_init
-
 configs_path='libbpf/travis-ci/vmtest/configs'
 blacklist_path="$configs_path/blacklist/BLACKLIST-${KERNEL}"
 if [[ -s "${blacklist_path}" ]]; then
--- a/travis-ci/vmtest/run_vmtest.sh
+++ b/travis-ci/vmtest/run_vmtest.sh
@@ -1,27 +1,19 @@
 #!/bin/bash

-set -eu
-
-source $(cd $(dirname $0) && pwd)/helpers.sh
+set -eux

 VMTEST_SETUPCMD="PROJECT_NAME=${PROJECT_NAME} ./${PROJECT_NAME}/travis-ci/vmtest/run_selftests.sh"

 echo "KERNEL: $KERNEL"
-echo

 # Build latest pahole
 ${VMTEST_ROOT}/build_pahole.sh travis-ci/vmtest/pahole

-travis_fold start install_clang "Installing Clang/LLVM"
-
 # Install required packages
 wget -O - https://apt.llvm.org/llvm-snapshot.gpg.key | sudo apt-key add -
 echo "deb http://apt.llvm.org/bionic/ llvm-toolchain-bionic main" | sudo tee -a /etc/apt/sources.list
-sudo apt-get update
-sudo apt-get -y install clang-12 lld-12 llvm-12
-sudo apt-get -y install python-docutils # for rst2man
-
-travis_fold end install_clang
+sudo apt-get -qq update
+sudo apt-get -qq -y install clang lld llvm

 # Build selftests (and latest kernel, if necessary)
 KERNEL="${KERNEL}" ${VMTEST_ROOT}/prepare_selftests.sh travis-ci/vmtest/bpf-next
--- a/travis-ci/vmtest/vmlinux.h
+++ b/travis-ci/vmtest/vmlinux.h
Author	SHA1	Message	Date
Vladimir Kobal	673424c561	Add fallback to an old attaching method	2020-07-30 13:38:27 +03:00
Vladimir Kobal	d2feaff998	Skip probing for loading	2020-07-30 13:37:26 +03:00
Vladimir Kobal	0d4b75d30e	Skip kernel version check	2020-07-30 13:35:35 +03:00