Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]

Groups > linux.kernel > #1242065

[PATCH 19/22] perf record: Support custom vmlinux path

Show all headers | View raw

From: He Kuang <hekuang@huawei.com>

Make perf-record command support --vmlinux option if BPF_PROLOGUE is on.

'perf record' needs vmlinux as the source of DWARF info to generate
prologue for BPF programs, so path of vmlinux should be specified.

Short name 'k' has been taken by 'clockid'. This patch skips the short
option name and use '--vmlinux' for vmlinux path.

Signed-off-by: He Kuang <hekuang@huawei.com>
Signed-off-by: Wang Nan <wangnan0@huawei.com>
Cc: Alexei Starovoitov <ast@plumgrid.com>
Cc: Brendan Gregg <brendan.d.gregg@gmail.com>
Cc: Daniel Borkmann <daniel@iogearbox.net>
Cc: David Ahern <dsahern@gmail.com>
Cc: He Kuang <hekuang@huawei.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Kaixu Xia <xiakaixu@huawei.com>
Cc: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Zefan Li <lizefan@huawei.com>
Cc: pi3orama@163.com
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Link: http://lkml.kernel.org/n/ebpf-6yw9eg0ej3l4jnqhinngkw86@git.kernel.org
---
 tools/perf/builtin-record.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/tools/perf/builtin-record.c b/tools/perf/builtin-record.c
index 847cc67..200f221 100644
--- a/tools/perf/builtin-record.c
+++ b/tools/perf/builtin-record.c
@@ -1123,6 +1123,10 @@ struct option __record_options[] = {
 		   "clang binary to use for compiling BPF scriptlets"),
 	OPT_STRING(0, "clang-opt", &llvm_param.clang_opt, "clang options",
 		   "options passed to clang when compiling BPF scriptlets"),
+#ifdef HAVE_BPF_PROLOGUE
+	OPT_STRING(0, "vmlinux", &symbol_conf.vmlinux_name,
+		   "file", "vmlinux pathname"),
+#endif
 #endif
 	OPT_END()
 };
-- 
1.8.3.4

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/

Back to linux.kernel | Previous | Next — Previous in thread | Next in thread | Find similar | Unroll thread

Thread

[GIT PULL 00/22] perf tools: filtering events using eBPF programs Wang Nan <wangnan0@huawei.com> - 2015-10-08 10:40 +0200
  [PATCH 22/22] perf test: Test BPF prologue Wang Nan <wangnan0@huawei.com> - 2015-10-08 10:40 +0200
  [PATCH 14/22] perf tools: Add BPF_PROLOGUE config options for further patches Wang Nan <wangnan0@huawei.com> - 2015-10-08 10:40 +0200
  [PATCH 19/22] perf record: Support custom vmlinux path Wang Nan <wangnan0@huawei.com> - 2015-10-08 10:40 +0200
  [PATCH 13/22] bpf tools: Load a program with different instances using preprocessor Wang Nan <wangnan0@huawei.com> - 2015-10-08 10:40 +0200
  [PATCH 05/22] perf record: Load eBPF object into kernel Wang Nan <wangnan0@huawei.com> - 2015-10-08 10:40 +0200
  [PATCH 15/22] perf tools: Compile dwarf-regs.c if CONFIG_BPF_PROLOGUE is on Wang Nan <wangnan0@huawei.com> - 2015-10-08 10:40 +0200
  [PATCH 21/22] perf test: Enforce LLVM test, add kbuild test Wang Nan <wangnan0@huawei.com> - 2015-10-08 10:40 +0200
  [PATCH 02/22] perf ebpf: Add the libbpf glue Wang Nan <wangnan0@huawei.com> - 2015-10-08 10:40 +0200
  [PATCH 04/22] perf record, bpf: Create probe points for BPF programs Wang Nan <wangnan0@huawei.com> - 2015-10-08 10:40 +0200
  [PATCH 18/22] perf tools: Use same BPF program if arguments are identical Wang Nan <wangnan0@huawei.com> - 2015-10-08 10:40 +0200
  [PATCH 10/22] perf test: Enforce LLVM test for BPF test Wang Nan <wangnan0@huawei.com> - 2015-10-08 10:50 +0200
  [PATCH 11/22] perf test: Add 'perf test BPF' Wang Nan <wangnan0@huawei.com> - 2015-10-08 10:50 +0200
  [PATCH 09/22] perf tools: Compile scriptlets to BPF objects when passing '.c' to --event Wang Nan <wangnan0@huawei.com> - 2015-10-08 10:50 +0200
  [PATCH 08/22] perf record: Add clang options for compiling BPF scripts Wang Nan <wangnan0@huawei.com> - 2015-10-08 10:50 +0200
  [PATCH 17/22] perf tools: Generate prologue for BPF programs Wang Nan <wangnan0@huawei.com> - 2015-10-08 10:50 +0200
  [PATCH 03/22] perf tools: Enable passing bpf object file to --event Wang Nan <wangnan0@huawei.com> - 2015-10-08 10:50 +0200
  [PATCH 06/22] perf tools: Collect perf_evsel in BPF object files Wang Nan <wangnan0@huawei.com> - 2015-10-08 10:50 +0200
  [PATCH 07/22] perf tools: Attach eBPF program to perf event Wang Nan <wangnan0@huawei.com> - 2015-10-08 10:50 +0200
  Re: [GIT PULL 00/22] perf tools: filtering events using eBPF programs Arnaldo Carvalho de Melo <acme@redhat.com> - 2015-10-08 15:50 +0200

csiph-web