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| author |   Ian Rogers <irogers@google.com> | 2019-10-10 11:36:47 -0700 |
|---|---|---|
| committer |   Arnaldo Carvalho de Melo <acme@redhat.com> | 2019-10-15 08:39:42 -0300 |
| commit | 7a675de428364a16038a8e6ed557daf0a009ce9c (patch) | |
| tree | 9a1d7d56c30e7b4ee3e0b55a1b59b793d601e0d6 /tools/perf/util/annotate.c | |
| parent | perf annotate: Use libsubcmd's run-command.h to fork objdump (diff) | |
| download | linux-dev-7a675de428364a16038a8e6ed557daf0a009ce9c.tar.xz linux-dev-7a675de428364a16038a8e6ed557daf0a009ce9c.zip | |
perf annotate: Don't pipe objdump output through 'grep' command
Simplify the objdump command by not piping the output of objdump through
grep. Instead, drop lines that match the grep pattern during the reading
loop.
Signed-off-by: Ian Rogers <irogers@google.com>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Jin Yao <yao.jin@linux.intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Song Liu <songliubraving@fb.com>
Cc: Stephane Eranian <eranian@google.com>
Cc: clang-built-linux@googlegroups.com
Link: http://lore.kernel.org/lkml/20191010183649.23768-4-irogers@google.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/util/annotate.c')
| -rw-r--r-- | tools/perf/util/annotate.c | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/tools/perf/util/annotate.c b/tools/perf/util/annotate.c index 9835666db5a7..0e052e253835 100644 --- a/tools/perf/util/annotate.c +++ b/tools/perf/util/annotate.c @@ -1916,7 +1916,7 @@ static int symbol__disassemble(struct symbol *sym, struct annotate_args *args) err = asprintf(&command, "%s %s%s --start-address=0x%016" PRIx64 " --stop-address=0x%016" PRIx64 - " -l -d %s %s -C \"$1\" 2>/dev/null|grep -v \"$1:\"|expand", + " -l -d %s %s -C \"$1\" 2>/dev/null|expand", opts->objdump_path ?: "objdump", opts->disassembler_style ? "-M " : "", opts->disassembler_style ?: "", @@ -1962,9 +1962,16 @@ static int symbol__disassemble(struct symbol *sym, struct annotate_args *args) nline = 0; while (!feof(file)) { + const char *match; + if (getline(&line, &line_len, file) < 0 || !line) break; + /* Skip lines containing "filename:" */ + match = strstr(line, symfs_filename); + if (match && match[strlen(symfs_filename)] == ':') + continue; + /* * The source code line number (lineno) needs to be kept in * across calls to symbol__parse_objdump_line(), so that it |