perf trace: Enclose the errno strings with ()

To match strace, now both emit the same line for calls like:

 access("/etc/ld.so.preload", R_OK)      = -1 ENOENT (No such file or directory)

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Luis Cláudio Gonçalves <lclaudio@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Wang Nan <wangnan0@huawei.com>
Link: https://lkml.kernel.org/n/tip-krxl6klsqc9qyktoaxyih942@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

diff --git a/tools/perf/builtin-trace.c b/tools/perf/builtin-trace.c
index 226e994ac6387c5f87774255a7d980feaec097d7..35d8fbe47ee4937d46faa45c7b2fa4f9dfbdf380 100644 (file)
--- a/tools/perf/builtin-trace.c
+++ b/tools/perf/builtin-trace.c
@@ -2024,10 +2024,10 @@ errno_print: {
                const char *emsg = str_error_r(-ret, bf, sizeof(bf)),
                           *e = errno_to_name(evsel, -ret);
 
-               fprintf(trace->output, "-1 %s %s", e, emsg);
+               fprintf(trace->output, "-1 %s (%s)", e, emsg);
        }
        } else if (ret == 0 && sc->fmt->timeout)
-               fprintf(trace->output, "0 Timeout");
+               fprintf(trace->output, "0 (Timeout)");
        else if (ttrace->ret_scnprintf) {
                char bf[1024];
                struct syscall_arg arg = {