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 <[email protected]> --- tools/perf/util/annotate.c | 9 ++++++++- 1 file changed, 8 insertions(+), 1 deletion(-) diff --git a/tools/perf/util/annotate.c b/tools/perf/util/annotate.c index fc12c5cfe112..0a7a6f3c55f4 100644 --- a/tools/perf/util/annotate.c +++ b/tools/perf/util/annotate.c @@ -1894,7 +1894,7 @@ 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 ?: "", @@ -1940,9 +1940,16 @@ 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 -- 2.23.0.581.g78d2f28ef7-goog
