diff options
| author | Song Liu <songliubraving@fb.com> | 2019-01-17 19:15:17 +0300 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2019-01-21 23:00:57 +0300 |
| commit | 9aa0bfa370b278a539077002b3c660468d66b5e7 (patch) | |
| tree | c34a24a2b29982f58c7fad1f9d6fc17b881ae1c5 /tools/perf/util/event.c | |
| parent | df063c83aa2c58412ddf533ada9aaf25986120ec (diff) | |
| download | linux-9aa0bfa370b278a539077002b3c660468d66b5e7.tar.xz | |
perf tools: Handle PERF_RECORD_KSYMBOL
This patch handles PERF_RECORD_KSYMBOL in perf record/report.
Specifically, map and symbol are created for ksymbol register, and
removed for ksymbol unregister.
This patch also sets perf_event_attr.ksymbol properly. The flag is ON by
default.
Committer notes:
Use proper inttypes.h for u64, fixing the build in some environments
like in the android NDK r15c targetting ARM 32-bit.
I.e. fixing this build error:
util/event.c: In function 'perf_event__fprintf_ksymbol':
util/event.c:1489:10: error: format '%lx' expects argument of type 'long unsigned int', but argument 3 has type 'u64' [-Werror=format=]
event->ksymbol_event.flags, event->ksymbol_event.name);
^
cc1: all warnings being treated as errors
Signed-off-by: Song Liu <songliubraving@fb.com>
Reviewed-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Alexei Starovoitov <ast@kernel.org>
Cc: Daniel Borkmann <daniel@iogearbox.net>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: kernel-team@fb.com
Cc: netdev@vger.kernel.org
Link: http://lkml.kernel.org/r/20190117161521.1341602-6-songliubraving@fb.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/util/event.c')
| -rw-r--r-- | tools/perf/util/event.c | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/tools/perf/util/event.c b/tools/perf/util/event.c index 937a5a4f71cc..f06f3811b25b 100644 --- a/tools/perf/util/event.c +++ b/tools/perf/util/event.c @@ -24,6 +24,7 @@ #include "symbol/kallsyms.h" #include "asm/bug.h" #include "stat.h" +#include "session.h" #define DEFAULT_PROC_MAP_PARSE_TIMEOUT 500 @@ -45,6 +46,7 @@ static const char *perf_event__names[] = { [PERF_RECORD_SWITCH] = "SWITCH", [PERF_RECORD_SWITCH_CPU_WIDE] = "SWITCH_CPU_WIDE", [PERF_RECORD_NAMESPACES] = "NAMESPACES", + [PERF_RECORD_KSYMBOL] = "KSYMBOL", [PERF_RECORD_HEADER_ATTR] = "ATTR", [PERF_RECORD_HEADER_EVENT_TYPE] = "EVENT_TYPE", [PERF_RECORD_HEADER_TRACING_DATA] = "TRACING_DATA", @@ -1329,6 +1331,14 @@ int perf_event__process_switch(struct perf_tool *tool __maybe_unused, return machine__process_switch_event(machine, event); } +int perf_event__process_ksymbol(struct perf_tool *tool __maybe_unused, + union perf_event *event, + struct perf_sample *sample __maybe_unused, + struct machine *machine) +{ + return machine__process_ksymbol(machine, event, sample); +} + size_t perf_event__fprintf_mmap(union perf_event *event, FILE *fp) { return fprintf(fp, " %d/%d: [%#" PRIx64 "(%#" PRIx64 ") @ %#" PRIx64 "]: %c %s\n", @@ -1461,6 +1471,14 @@ static size_t perf_event__fprintf_lost(union perf_event *event, FILE *fp) return fprintf(fp, " lost %" PRIu64 "\n", event->lost.lost); } +size_t perf_event__fprintf_ksymbol(union perf_event *event, FILE *fp) +{ + return fprintf(fp, " ksymbol event with addr %" PRIx64 " len %u type %u flags 0x%x name %s\n", + event->ksymbol_event.addr, event->ksymbol_event.len, + event->ksymbol_event.ksym_type, + event->ksymbol_event.flags, event->ksymbol_event.name); +} + size_t perf_event__fprintf(union perf_event *event, FILE *fp) { size_t ret = fprintf(fp, "PERF_RECORD_%s", @@ -1496,6 +1514,9 @@ size_t perf_event__fprintf(union perf_event *event, FILE *fp) case PERF_RECORD_LOST: ret += perf_event__fprintf_lost(event, fp); break; + case PERF_RECORD_KSYMBOL: + ret += perf_event__fprintf_ksymbol(event, fp); + break; default: ret += fprintf(fp, "\n"); } |