From: Wang Nan <wangnan0@huawei.com>
To: <acme@redhat.com>, <ast@plumgrid.com>,
<masami.hiramatsu.pt@hitachi.com>, <namhyung@kernel.org>
Cc: <a.p.zijlstra@chello.nl>, <brendan.d.gregg@gmail.com>,
<daniel@iogearbox.net>, <dsahern@gmail.com>, <hekuang@huawei.com>,
<jolsa@kernel.org>, <lizefan@huawei.com>, <paulus@samba.org>,
<wangnan0@huawei.com>, <xiakaixu@huawei.com>, <pi3orama@163.com>,
<linux-kernel@vger.kernel.org>
Subject: [PATCH 12/27] perf record: Add clang options for compiling BPF scripts
Date: Sun, 6 Sep 2015 07:13:28 +0000 [thread overview]
Message-ID: <1441523623-152703-13-git-send-email-wangnan0@huawei.com> (raw)
In-Reply-To: <1441523623-152703-1-git-send-email-wangnan0@huawei.com>
Although previous patch allows setting BPF compiler related options in
perfconfig, on some ad-hoc situation it still requires passing options
through cmdline. This patch introduces 2 options to 'perf record' for
this propose: --clang-path and --clang-opt.
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/1436445342-1402-28-git-send-email-wangnan0@huawei.com
---
tools/perf/builtin-record.c | 7 +++++++
1 file changed, 7 insertions(+)
diff --git a/tools/perf/builtin-record.c b/tools/perf/builtin-record.c
index f99d580..11e7d63 100644
--- a/tools/perf/builtin-record.c
+++ b/tools/perf/builtin-record.c
@@ -32,6 +32,7 @@
#include "util/parse-branch-options.h"
#include "util/parse-regs-options.h"
#include "util/bpf-loader.h"
+#include "util/llvm-utils.h"
#include <unistd.h>
#include <sched.h>
@@ -1097,6 +1098,12 @@ struct option __record_options[] = {
"per thread proc mmap processing timeout in ms"),
OPT_BOOLEAN(0, "switch-events", &record.opts.record_switch_events,
"Record context switch events"),
+#ifdef HAVE_LIBBPF_SUPPORT
+ OPT_STRING(0, "clang-path", &llvm_param.clang_path, "clang path",
+ "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"),
+#endif
OPT_END()
};
--
2.1.0
next prev parent reply other threads:[~2015-09-06 7:19 UTC|newest]
Thread overview: 35+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-09-06 7:13 [GIT PULL 00/27] perf tools: filtering events using eBPF programs Wang Nan
2015-09-06 7:13 ` [PATCH 01/27] perf tools: Don't write to evsel if parser doesn't collect evsel Wang Nan
2015-09-23 8:43 ` [tip:perf/core] perf tools: Don' t assume that the parser returns non empty evsel list tip-bot for Wang Nan
2015-09-06 7:13 ` [PATCH 02/27] perf tools: Make perf depend on libbpf Wang Nan
2015-09-06 7:13 ` [PATCH 03/27] perf ebpf: Add the libbpf glue Wang Nan
2015-09-06 7:13 ` [PATCH 04/27] perf tools: Enable passing bpf object file to --event Wang Nan
2015-09-06 7:13 ` [PATCH 05/27] perf record, bpf: Parse and create probe points for BPF programs Wang Nan
2015-09-16 21:43 ` Arnaldo Carvalho de Melo
2015-09-17 2:04 ` Wangnan (F)
2015-09-06 7:13 ` [PATCH 06/27] perf bpf: Collect 'struct perf_probe_event' for bpf_program Wang Nan
2015-09-06 7:13 ` [PATCH 07/27] perf record: Load all eBPF object into kernel Wang Nan
2015-09-06 7:13 ` [PATCH 08/27] perf tools: Add bpf_fd field to evsel and config it Wang Nan
2015-09-06 7:13 ` [PATCH 09/27] perf tools: Attach eBPF program to perf event Wang Nan
2015-09-06 7:13 ` [PATCH 10/27] perf tools: Allow BPF placeholder dummy events to collect --filter options Wang Nan
2015-09-06 7:13 ` [PATCH 11/27] perf tools: Sync setting of real bpf events with placeholder Wang Nan
2015-09-06 7:13 ` Wang Nan [this message]
2015-09-06 7:13 ` [PATCH 13/27] perf tools: Compile scriptlets to BPF objects when passing '.c' to --event Wang Nan
2015-09-06 7:13 ` [PATCH 14/27] perf test: Enforce LLVM test for BPF test Wang Nan
2015-09-06 7:13 ` [PATCH 15/27] perf test: Add 'perf test BPF' Wang Nan
2015-09-06 7:13 ` [PATCH 16/27] bpf tools: Load a program with different instances using preprocessor Wang Nan
2015-09-06 7:13 ` [PATCH 17/27] perf probe: Reset args and nargs for probe_trace_event when failure Wang Nan
2015-09-06 7:13 ` [PATCH 18/27] perf tools: Add BPF_PROLOGUE config options for further patches Wang Nan
2015-09-16 7:30 ` [tip:perf/core] perf tools: regs_query_register_offset() infrastructure tip-bot for Wang Nan
2015-09-06 7:13 ` [PATCH 19/27] perf tools: Introduce regs_query_register_offset() for x86 Wang Nan
2015-09-14 21:37 ` Arnaldo Carvalho de Melo
2015-09-15 1:36 ` Wangnan (F)
2015-09-16 7:30 ` [tip:perf/core] perf tools: Introduce regs_query_register_offset( ) " tip-bot for Wang Nan
2015-09-06 7:13 ` [PATCH 20/27] perf tools: Add prologue for BPF programs for fetching arguments Wang Nan
2015-09-06 7:13 ` [PATCH 21/27] perf tools: Generate prologue for BPF programs Wang Nan
2015-09-06 7:13 ` [PATCH 22/27] perf tools: Use same BPF program if arguments are identical Wang Nan
2015-09-06 7:13 ` [PATCH 23/27] perf record: Support custom vmlinux path Wang Nan
2015-09-06 7:13 ` [PATCH 24/27] perf probe: Init symbol as kprobe Wang Nan
2015-09-06 7:13 ` [PATCH 25/27] perf tools: Allow BPF program attach to uprobe events Wang Nan
2015-09-06 7:13 ` [PATCH 26/27] perf test: Enforce LLVM test, add kbuild test Wang Nan
2015-09-06 7:13 ` [PATCH 27/27] perf test: Test BPF prologue Wang Nan
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