perf bpf: Add bpf.h to be used in eBPF proggies (dd8e4ead) · Commits · 戴 / test

So, the first helper is the one shortening a variable/function section attribute, from, for instance: char _license[] __attribute__((section("license"), used)) = "GPL"; to: char _license[] SEC("license") = "GPL"; Convert empty.c to that and it becomes: # cat ~acme/lib/examples/perf/bpf/empty.c #include <bpf.h> char _license[] SEC("license") = "GPL"; int _version SEC("version") = LINUX_VERSION_CODE; # Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Wang Nan <wangnan0@huawei.com> Link: https://lkml.kernel.org/n/tip-zmeg52dlvy51rdlhyumfl5yf@git.kernel.org Signed-off-by:

Arnaldo Carvalho de Melo <acme@redhat.com>

tools/perf/Makefile.perf

+1 −0

Original line number	Diff line number	Diff line
		@@ -770,6 +770,7 @@ endif
		ifndef NO_LIBBPF
		$(call QUIET_INSTALL, lib) \
		$(INSTALL) -d -m 755 '$(DESTDIR_SQ)$(perf_include_instdir_SQ)/bpf'
		$(INSTALL) include/bpf/*.h '$(DESTDIR_SQ)$(perf_include_instdir_SQ)/bpf'
		$(call QUIET_INSTALL, lib) \
		$(INSTALL) -d -m 755 '$(DESTDIR_SQ)$(perf_examples_instdir_SQ)/bpf'
		$(INSTALL) examples/bpf/*.c '$(DESTDIR_SQ)$(perf_examples_instdir_SQ)/bpf'

tools/perf/examples/bpf/empty.c

+4 −2

Original line number	Diff line number	Diff line
		char _license[] __attribute__((section("license"), used)) = "GPL";
		int _version __attribute__((section("version"), used)) = LINUX_VERSION_CODE;
		#include <bpf.h>

		char _license[] SEC("license") = "GPL";
		int _version SEC("version") = LINUX_VERSION_CODE;

tools/perf/include/bpf/bpf.h

0 → 100644

+5 −0

Original line number	Diff line number	Diff line
		// SPDX-License-Identifier: GPL-2.0
		#ifndef _PERF_BPF_H
		#define _PERF_BPF_H
		#define SEC(NAME) __attribute__((section(NAME), used))
		#endif /* _PERF_BPF_H */

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