Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932715AbbLHC1O (ORCPT ); Mon, 7 Dec 2015 21:27:14 -0500 Received: from szxga02-in.huawei.com ([119.145.14.65]:14340 "EHLO szxga02-in.huawei.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755704AbbLHC0Z (ORCPT ); Mon, 7 Dec 2015 21:26:25 -0500 From: Wang Nan To: , CC: , , , , Wang Nan , Adrian Hunter , Arnaldo Carvalho de Melo , "Jiri Olsa" Subject: [PATCH v4 15/16] perf script: Add support for PERF_TYPE_BREAKPOINT Date: Tue, 8 Dec 2015 02:25:43 +0000 Message-ID: <1449541544-67621-16-git-send-email-wangnan0@huawei.com> X-Mailer: git-send-email 1.8.3.4 In-Reply-To: <1449541544-67621-1-git-send-email-wangnan0@huawei.com> References: <1449541544-67621-1-git-send-email-wangnan0@huawei.com> MIME-Version: 1.0 Content-Type: text/plain X-Originating-IP: [10.107.193.248] X-CFilter-Loop: Reflected X-Mirapoint-Virus-RAPID-Raw: score=unknown(0), refid=str=0001.0A020205.56663FCB.0019,ss=1,re=0.000,recu=0.000,reip=0.000,cl=1,cld=1,fgs=0, ip=0.0.0.0, so=2013-06-18 04:22:30, dmn=2013-03-21 17:37:32 X-Mirapoint-Loop-Id: 9938726711ef1e2b34065830f9cfd00e Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 3000 Lines: 87 Useful for getting stack traces for hardware breakpoint events. Test result: Before this patch: # ~/perf record -g -e mem:0x600980 ./sample [ perf record: Woken up 1 times to write data ] [ perf record: Captured and wrote 0.011 MB perf.data (12 samples) ] # ~/perf script # ~/perf script -F comm,tid,pid,time,event,ip,sym,dso sample 22520/22520 97457.836294: mem:0x600980: 5a4ad8 __clear_user (/lib/modules/4.3.0-rc4+/build/vmlinux) ... 3f41ba sys_execve (/lib/modules/4.3.0-rc4+/build/vmlinux) 979395 return_from_execve (/lib/modules/4.3.0-rc4+/build/vmlinux) 7f1b59719cf7 [unknown] ([unknown]) sample 22520/22520 97457.836648: mem:0x600980: 532 main (/home/w00229757/DataBreakpoints/sample) 21bd5 __libc_start_main (/tmp/oxygen_root-root/lib64/libc-2.18.so) ... After this patch: # ~/perf script sample 22520 97457.836294: mem:0x600980: 5a4ad8 __clear_user (/lib/modules/4.3.0-rc4+/build/vmlinux) ... 3f41ba sys_execve (/lib/modules/4.3.0-rc4+/build/vmlinux) 979395 return_from_execve (/lib/modules/4.3.0-rc4+/build/vmlinux) 7f1b59719cf7 [unknown] ([unknown]) sample 22520 97457.836648: mem:0x600980: 532 main (/home/w00229757/DataBreakpoints/sample) 21bd5 __libc_start_main (/tmp/oxygen_root-root/lib64/libc-2.18.so) Signed-off-by: Wang Nan Cc: Adrian Hunter Cc: Arnaldo Carvalho de Melo Cc: Jiri Olsa Cc: Zefan Li Cc: pi3orama@163.com --- tools/perf/builtin-script.c | 14 ++++++++++++++ 1 file changed, 14 insertions(+) diff --git a/tools/perf/builtin-script.c b/tools/perf/builtin-script.c index 3c3f8d0..d259e9a 100644 --- a/tools/perf/builtin-script.c +++ b/tools/perf/builtin-script.c @@ -130,6 +130,18 @@ static struct { .invalid_fields = PERF_OUTPUT_TRACE, }, + + [PERF_TYPE_BREAKPOINT] = { + .user_set = false, + + .fields = PERF_OUTPUT_COMM | PERF_OUTPUT_TID | + PERF_OUTPUT_CPU | PERF_OUTPUT_TIME | + PERF_OUTPUT_EVNAME | PERF_OUTPUT_IP | + PERF_OUTPUT_SYM | PERF_OUTPUT_DSO | + PERF_OUTPUT_PERIOD, + + .invalid_fields = PERF_OUTPUT_TRACE, + }, }; static bool output_set_by_user(void) @@ -1129,6 +1141,8 @@ static int parse_output_fields(const struct option *opt __maybe_unused, type = PERF_TYPE_TRACEPOINT; else if (!strcmp(str, "raw")) type = PERF_TYPE_RAW; + else if (!strcmp(str, "break")) + type = PERF_TYPE_BREAKPOINT; else { fprintf(stderr, "Invalid event type in field string.\n"); rc = -EINVAL; -- 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/