Commit 1475d35c authored Nov 06, 2018 by Arnaldo Carvalho de Melo

perf bpf: Add unistd.h to the headers accessible to bpf proggies

Start with a getpid() function wrapping BPF_FUNC_get_current_pid_tgid,
idea is to mimic the system headers.

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-zo8hv22onidep7tm785dzxfk@git.kernel.org


Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

parent b1a9d7b0

tools/perf/include/bpf/unistd.h

0 → 100644

+10 −0

Original line number	Diff line number	Diff line
		// SPDX-License-Identifier: LGPL-2.1

		#include <bpf.h>

		static int (bpf_get_current_pid_tgid)(void) = (void )BPF_FUNC_get_current_pid_tgid;

		static pid_t getpid(void)
		{
		return bpf_get_current_pid_tgid();
		}

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