From mboxrd@z Thu Jan 1 00:00:00 1970 From: Arnaldo Carvalho de Melo Subject: [PATCH 01/28] perf bpf: Add unistd.h to the headers accessible to bpf proggies Date: Thu, 22 Nov 2018 00:35:44 -0300 Message-ID: <20181122033611.15890-2-acme@kernel.org> References: <20181122033611.15890-1-acme@kernel.org> Return-path: In-Reply-To: <20181122033611.15890-1-acme@kernel.org> Sender: linux-kernel-owner@vger.kernel.org To: Ingo Molnar Cc: Clark Williams , linux-kernel@vger.kernel.org, linux-perf-users@vger.kernel.org, Arnaldo Carvalho de Melo , Adrian Hunter , David Ahern , Jiri Olsa , Namhyung Kim , Wang Nan List-Id: linux-perf-users.vger.kernel.org From: Arnaldo Carvalho de Melo Start with a getpid() function wrapping BPF_FUNC_get_current_pid_tgid, idea is to mimic the system headers. Cc: Adrian Hunter Cc: David Ahern Cc: Jiri Olsa Cc: Namhyung Kim Cc: Wang Nan Link: https://lkml.kernel.org/n/tip-zo8hv22onidep7tm785dzxfk@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/include/bpf/unistd.h | 10 ++++++++++ 1 file changed, 10 insertions(+) create mode 100644 tools/perf/include/bpf/unistd.h diff --git a/tools/perf/include/bpf/unistd.h b/tools/perf/include/bpf/unistd.h new file mode 100644 index 000000000000..ca7877f9a976 --- /dev/null +++ b/tools/perf/include/bpf/unistd.h @@ -0,0 +1,10 @@ +// SPDX-License-Identifier: LGPL-2.1 + +#include + +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(); +} -- 2.14.5