mirror of
https://github.com/netdata/libbpf.git
synced 2026-03-21 08:49:06 +08:00
62706e5557
* Sync from bpf-next
Sync the following commits from bpf-next:
commit ab9e08482122 ("libbpf: Per-symbol visibility for DSO")
commit c034a177d3c8 ("bpf: bpftool, add flag to allow non-compat map definitions")
Signed-off-by: Andrey Ignatov <rdna@fb.com>
* Use -fvisibility=hidden by default for DSO
This is Makefile part of:
commit ab9e08482122 ("libbpf: Per-symbol visibility for DSO")
See original commit for details.
79 lines
1.6 KiB
Makefile
79 lines
1.6 KiB
Makefile
# SPDX-License-Identifier: (LGPL-2.1 OR BSD-2-Clause)
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TOPDIR = ..
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INCLUDES := -I. -I$(TOPDIR)/include -I$(TOPDIR)/include/uapi
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ALL_CFLAGS := $(INCLUDES)
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FEATURE_REALLOCARRAY := $(shell $(TOPDIR)/scripts/check-reallocarray.sh)
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ifneq ($(FEATURE_REALLOCARRAY),)
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ALL_CFLAGS += -DCOMPAT_NEED_REALLOCARRAY
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endif
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ifdef BUILD_SHARED
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ALL_CFLAGS += -fPIC -fvisibility=hidden
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endif
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CFLAGS ?= -g -O2 -Werror -Wall
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ALL_CFLAGS += $(CFLAGS)
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OBJDIR ?= .
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OBJS := $(addprefix $(OBJDIR)/,bpf.o btf.o libbpf.o libbpf_errno.o netlink.o \
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nlattr.o str_error.o)
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LIBS := $(OBJDIR)/libbpf.a
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ifdef BUILD_SHARED
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LIBS += $(OBJDIR)/libbpf.so
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endif
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HEADERS := bpf.h libbpf.h btf.h
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UAPI_HEADERS := $(addprefix $(TOPDIR)/include/uapi/linux/,bpf.h btf.h)
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INSTALL = install
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DESTDIR ?=
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ifeq ($(shell uname -m),x86_64)
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LIBSUBDIR := lib64
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else
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LIBSUBDIR := lib
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endif
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PREFIX ?= /usr
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LIBDIR ?= $(PREFIX)/$(LIBSUBDIR)
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INCLUDEDIR ?= $(PREFIX)/include
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UAPIDIR ?= $(PREFIX)/include
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all: $(LIBS)
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$(OBJDIR)/libbpf.a: $(OBJS)
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$(AR) rcs $@ $^
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$(OBJDIR)/libbpf.so: $(OBJS)
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$(CC) -shared $(LDFLAGS) $^ -o $@
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$(OBJDIR)/%.o: %.c
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$(CC) $(ALL_CFLAGS) -c $< -o $@
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define do_install
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if [ ! -d '$(DESTDIR)$2' ]; then \
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$(INSTALL) -d -m 755 '$(DESTDIR)$2'; \
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fi; \
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$(INSTALL) $1 $(if $3,-m $3,) '$(DESTDIR)$2'
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endef
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install: all install_headers
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$(call do_install,$(LIBS),$(LIBDIR))
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install_headers:
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$(call do_install,$(HEADERS),$(INCLUDEDIR)/bpf,644)
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# UAPI headers can be installed by a different package so they're not installed
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# in by install rule.
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install_uapi_headers:
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$(call do_install,$(UAPI_HEADERS),$(UAPIDIR)/linux,644)
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clean:
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rm -f *.o *.a *.so
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