tools: Introduce str_error_r()
The tools so far have been using the strerror_r() GNU variant, that
returns a string, be it the buffer passed or something else.
But that, besides being tricky in cases where we expect that the
function using strerror_r() returns the error formatted in a provided
buffer (we have to check if it returned something else and copy that
instead), breaks the build on systems not using glibc, like Alpine
Linux, where musl libc is used.
So, introduce yet another wrapper, str_error_r(), that has the GNU
interface, but uses the portable XSI variant of strerror_r(), so that
users rest asured that the provided buffer is used and it is what is
returned.
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Wang Nan <wangnan0@huawei.com>
Link: http://lkml.kernel.org/n/tip-d4t42fnf48ytlk8rjxs822tf@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
diff --git a/tools/include/linux/string.h b/tools/include/linux/string.h
index e26223f..b466d02 100644
--- a/tools/include/linux/string.h
+++ b/tools/include/linux/string.h
@@ -12,4 +12,6 @@
extern size_t strlcpy(char *dest, const char *src, size_t size);
#endif
+char *str_error_r(int errnum, char *buf, size_t buflen);
+
#endif /* _LINUX_STRING_H_ */
diff --git a/tools/lib/str_error_r.c b/tools/lib/str_error_r.c
new file mode 100644
index 0000000..503ae07
--- /dev/null
+++ b/tools/lib/str_error_r.c
@@ -0,0 +1,26 @@
+#undef _GNU_SOURCE
+#include <string.h>
+#include <stdio.h>
+#include <linux/string.h>
+
+/*
+ * The tools so far have been using the strerror_r() GNU variant, that returns
+ * a string, be it the buffer passed or something else.
+ *
+ * But that, besides being tricky in cases where we expect that the function
+ * using strerror_r() returns the error formatted in a provided buffer (we have
+ * to check if it returned something else and copy that instead), breaks the
+ * build on systems not using glibc, like Alpine Linux, where musl libc is
+ * used.
+ *
+ * So, introduce yet another wrapper, str_error_r(), that has the GNU
+ * interface, but uses the portable XSI variant of strerror_r(), so that users
+ * rest asured that the provided buffer is used and it is what is returned.
+ */
+char *str_error_r(int errnum, char *buf, size_t buflen)
+{
+ int err = strerror_r(errnum, buf, buflen);
+ if (err)
+ snprintf(buf, buflen, "INTERNAL ERROR: strerror_r(%d, %p, %zd)=%d", errnum, buf, buflen, err);
+ return buf;
+}
diff --git a/tools/perf/MANIFEST b/tools/perf/MANIFEST
index 8c8c6b9..f18e781 100644
--- a/tools/perf/MANIFEST
+++ b/tools/perf/MANIFEST
@@ -29,6 +29,7 @@
tools/lib/symbol/kallsyms.h
tools/lib/find_bit.c
tools/lib/bitmap.c
+tools/lib/str_error_r.c
tools/include/asm/atomic.h
tools/include/asm/barrier.h
tools/include/asm/bug.h
diff --git a/tools/perf/arch/x86/tests/rdpmc.c b/tools/perf/arch/x86/tests/rdpmc.c
index 72193f19..a32d72e 100644
--- a/tools/perf/arch/x86/tests/rdpmc.c
+++ b/tools/perf/arch/x86/tests/rdpmc.c
@@ -111,14 +111,14 @@
if (fd < 0) {
pr_err("Error: sys_perf_event_open() syscall returned "
"with %d (%s)\n", fd,
- strerror_r(errno, sbuf, sizeof(sbuf)));
+ str_error_r(errno, sbuf, sizeof(sbuf)));
return -1;
}
addr = mmap(NULL, page_size, PROT_READ, MAP_SHARED, fd, 0);
if (addr == (void *)(-1)) {
pr_err("Error: mmap() syscall returned with (%s)\n",
- strerror_r(errno, sbuf, sizeof(sbuf)));
+ str_error_r(errno, sbuf, sizeof(sbuf)));
goto out_close;
}
diff --git a/tools/perf/builtin-buildid-cache.c b/tools/perf/builtin-buildid-cache.c
index 76a4d03..30e2b2c 100644
--- a/tools/perf/builtin-buildid-cache.c
+++ b/tools/perf/builtin-buildid-cache.c
@@ -351,7 +351,7 @@
continue;
}
pr_warning("Couldn't add %s: %s\n",
- pos->s, strerror_r(errno, sbuf, sizeof(sbuf)));
+ pos->s, str_error_r(errno, sbuf, sizeof(sbuf)));
}
strlist__delete(list);
@@ -369,7 +369,7 @@
continue;
}
pr_warning("Couldn't remove %s: %s\n",
- pos->s, strerror_r(errno, sbuf, sizeof(sbuf)));
+ pos->s, str_error_r(errno, sbuf, sizeof(sbuf)));
}
strlist__delete(list);
@@ -387,7 +387,7 @@
continue;
}
pr_warning("Couldn't remove %s: %s\n",
- pos->s, strerror_r(errno, sbuf, sizeof(sbuf)));
+ pos->s, str_error_r(errno, sbuf, sizeof(sbuf)));
}
strlist__delete(list);
@@ -408,7 +408,7 @@
continue;
}
pr_warning("Couldn't update %s: %s\n",
- pos->s, strerror_r(errno, sbuf, sizeof(sbuf)));
+ pos->s, str_error_r(errno, sbuf, sizeof(sbuf)));
}
strlist__delete(list);
diff --git a/tools/perf/builtin-help.c b/tools/perf/builtin-help.c
index 268ab73..3bdb2c7 100644
--- a/tools/perf/builtin-help.c
+++ b/tools/perf/builtin-help.c
@@ -117,7 +117,7 @@
free(man_page);
}
warning("failed to exec '%s': %s", path,
- strerror_r(errno, sbuf, sizeof(sbuf)));
+ str_error_r(errno, sbuf, sizeof(sbuf)));
}
}
@@ -150,7 +150,7 @@
free(man_page);
}
warning("failed to exec '%s': %s", path,
- strerror_r(errno, sbuf, sizeof(sbuf)));
+ str_error_r(errno, sbuf, sizeof(sbuf)));
}
}
@@ -162,7 +162,7 @@
path = "man";
execlp(path, "man", page, NULL);
warning("failed to exec '%s': %s", path,
- strerror_r(errno, sbuf, sizeof(sbuf)));
+ str_error_r(errno, sbuf, sizeof(sbuf)));
}
static void exec_man_cmd(const char *cmd, const char *page)
@@ -175,7 +175,7 @@
free(shell_cmd);
}
warning("failed to exec '%s': %s", cmd,
- strerror_r(errno, sbuf, sizeof(sbuf)));
+ str_error_r(errno, sbuf, sizeof(sbuf)));
}
static void add_man_viewer(const char *name)
diff --git a/tools/perf/builtin-kvm.c b/tools/perf/builtin-kvm.c
index f4efef9..5e2127e 100644
--- a/tools/perf/builtin-kvm.c
+++ b/tools/perf/builtin-kvm.c
@@ -1018,13 +1018,13 @@
err = perf_evlist__open(evlist);
if (err < 0) {
printf("Couldn't create the events: %s\n",
- strerror_r(errno, sbuf, sizeof(sbuf)));
+ str_error_r(errno, sbuf, sizeof(sbuf)));
goto out;
}
if (perf_evlist__mmap(evlist, kvm->opts.mmap_pages, false) < 0) {
ui__error("Failed to mmap the events: %s\n",
- strerror_r(errno, sbuf, sizeof(sbuf)));
+ str_error_r(errno, sbuf, sizeof(sbuf)));
perf_evlist__close(evlist);
goto out;
}
diff --git a/tools/perf/builtin-probe.c b/tools/perf/builtin-probe.c
index a1a5cd1..c6d890a 100644
--- a/tools/perf/builtin-probe.c
+++ b/tools/perf/builtin-probe.c
@@ -308,7 +308,7 @@
pr_err("%s", msg);
pr_debug(" Reason: %s (Code: %d)",
- strerror_r(-err, sbuf, sizeof(sbuf)), err);
+ str_error_r(-err, sbuf, sizeof(sbuf)), err);
pr_err("\n");
}
diff --git a/tools/perf/builtin-record.c b/tools/perf/builtin-record.c
index b2b3b60..d9f5cc3 100644
--- a/tools/perf/builtin-record.c
+++ b/tools/perf/builtin-record.c
@@ -361,7 +361,7 @@
return -errno;
} else {
pr_err("failed to mmap with %d (%s)\n", errno,
- strerror_r(errno, msg, sizeof(msg)));
+ str_error_r(errno, msg, sizeof(msg)));
if (errno)
return -errno;
else
@@ -407,7 +407,7 @@
if (perf_evlist__apply_filters(evlist, &pos)) {
error("failed to set filter \"%s\" on event %s with %d (%s)\n",
pos->filter, perf_evsel__name(pos), errno,
- strerror_r(errno, msg, sizeof(msg)));
+ str_error_r(errno, msg, sizeof(msg)));
rc = -1;
goto out;
}
@@ -1003,7 +1003,7 @@
if (forks && workload_exec_errno) {
char msg[STRERR_BUFSIZE];
- const char *emsg = strerror_r(workload_exec_errno, msg, sizeof(msg));
+ const char *emsg = str_error_r(workload_exec_errno, msg, sizeof(msg));
pr_err("Workload failed: %s\n", emsg);
err = -1;
goto out_child;
diff --git a/tools/perf/builtin-sched.c b/tools/perf/builtin-sched.c
index afa0576..0dfe8df 100644
--- a/tools/perf/builtin-sched.c
+++ b/tools/perf/builtin-sched.c
@@ -494,7 +494,7 @@
}
pr_err("Error: sys_perf_event_open() syscall returned "
"with %d (%s)\n%s", fd,
- strerror_r(errno, sbuf, sizeof(sbuf)), info);
+ str_error_r(errno, sbuf, sizeof(sbuf)), info);
exit(EXIT_FAILURE);
}
return fd;
diff --git a/tools/perf/builtin-stat.c b/tools/perf/builtin-stat.c
index c367a43..8c5a3bf 100644
--- a/tools/perf/builtin-stat.c
+++ b/tools/perf/builtin-stat.c
@@ -596,7 +596,7 @@
if (perf_evlist__apply_filters(evsel_list, &counter)) {
error("failed to set filter \"%s\" on event %s with %d (%s)\n",
counter->filter, perf_evsel__name(counter), errno,
- strerror_r(errno, msg, sizeof(msg)));
+ str_error_r(errno, msg, sizeof(msg)));
return -1;
}
@@ -637,7 +637,7 @@
wait(&status);
if (workload_exec_errno) {
- const char *emsg = strerror_r(workload_exec_errno, msg, sizeof(msg));
+ const char *emsg = str_error_r(workload_exec_errno, msg, sizeof(msg));
pr_err("Workload failed: %s\n", emsg);
return -1;
}
diff --git a/tools/perf/builtin-top.c b/tools/perf/builtin-top.c
index 07fc792..bd10868 100644
--- a/tools/perf/builtin-top.c
+++ b/tools/perf/builtin-top.c
@@ -907,7 +907,7 @@
if (perf_evlist__mmap(evlist, opts->mmap_pages, false) < 0) {
ui__error("Failed to mmap with %d (%s)\n",
- errno, strerror_r(errno, msg, sizeof(msg)));
+ errno, str_error_r(errno, msg, sizeof(msg)));
goto out_err;
}
@@ -1028,7 +1028,7 @@
out_err_cpu_topo: {
char errbuf[BUFSIZ];
- const char *err = strerror_r(-ret, errbuf, sizeof(errbuf));
+ const char *err = str_error_r(-ret, errbuf, sizeof(errbuf));
ui__error("Could not read the CPU topology map: %s\n", err);
goto out_delete;
@@ -1295,7 +1295,7 @@
if (perf_evlist__create_maps(top.evlist, target) < 0) {
ui__error("Couldn't create thread/CPU maps: %s\n",
- errno == ENOENT ? "No such process" : strerror_r(errno, errbuf, sizeof(errbuf)));
+ errno == ENOENT ? "No such process" : str_error_r(errno, errbuf, sizeof(errbuf)));
goto out_delete_evlist;
}
diff --git a/tools/perf/builtin-trace.c b/tools/perf/builtin-trace.c
index cf90de8..e7e0b6e 100644
--- a/tools/perf/builtin-trace.c
+++ b/tools/perf/builtin-trace.c
@@ -1601,7 +1601,7 @@
fprintf(trace->output, ") = %ld", ret);
} else if (ret < 0 && (sc->fmt->errmsg || sc->fmt->errpid)) {
char bf[STRERR_BUFSIZE];
- const char *emsg = strerror_r(-ret, bf, sizeof(bf)),
+ const char *emsg = str_error_r(-ret, bf, sizeof(bf)),
*e = audit_errno_to_name(-ret);
fprintf(trace->output, ") = -1 %s %s", e, emsg);
@@ -2402,7 +2402,7 @@
fprintf(trace->output,
"Failed to set filter \"%s\" on event %s with %d (%s)\n",
evsel->filter, perf_evsel__name(evsel), errno,
- strerror_r(errno, errbuf, sizeof(errbuf)));
+ str_error_r(errno, errbuf, sizeof(errbuf)));
goto out_delete_evlist;
}
out_error_mem:
diff --git a/tools/perf/perf.c b/tools/perf/perf.c
index 8f21922..f7d7dbb 100644
--- a/tools/perf/perf.c
+++ b/tools/perf/perf.c
@@ -374,7 +374,7 @@
/* Check for ENOSPC and EIO errors.. */
if (fflush(stdout)) {
fprintf(stderr, "write failure on standard output: %s",
- strerror_r(errno, sbuf, sizeof(sbuf)));
+ str_error_r(errno, sbuf, sizeof(sbuf)));
goto out;
}
if (ferror(stdout)) {
@@ -383,7 +383,7 @@
}
if (fclose(stdout)) {
fprintf(stderr, "close failed on standard output: %s",
- strerror_r(errno, sbuf, sizeof(sbuf)));
+ str_error_r(errno, sbuf, sizeof(sbuf)));
goto out;
}
status = 0;
@@ -615,7 +615,7 @@
}
fprintf(stderr, "Failed to run command '%s': %s\n",
- cmd, strerror_r(errno, sbuf, sizeof(sbuf)));
+ cmd, str_error_r(errno, sbuf, sizeof(sbuf)));
out:
return 1;
}
diff --git a/tools/perf/tests/backward-ring-buffer.c b/tools/perf/tests/backward-ring-buffer.c
index e70313f..f20ea4c 100644
--- a/tools/perf/tests/backward-ring-buffer.c
+++ b/tools/perf/tests/backward-ring-buffer.c
@@ -60,7 +60,7 @@
err = perf_evlist__mmap(evlist, mmap_pages, true);
if (err < 0) {
pr_debug("perf_evlist__mmap: %s\n",
- strerror_r(errno, sbuf, sizeof(sbuf)));
+ str_error_r(errno, sbuf, sizeof(sbuf)));
return TEST_FAIL;
}
@@ -124,7 +124,7 @@
err = perf_evlist__open(evlist);
if (err < 0) {
pr_debug("perf_evlist__open: %s\n",
- strerror_r(errno, sbuf, sizeof(sbuf)));
+ str_error_r(errno, sbuf, sizeof(sbuf)));
goto out_delete_evlist;
}
diff --git a/tools/perf/tests/bpf.c b/tools/perf/tests/bpf.c
index f31eed3..da0d87613 100644
--- a/tools/perf/tests/bpf.c
+++ b/tools/perf/tests/bpf.c
@@ -143,14 +143,14 @@
err = perf_evlist__open(evlist);
if (err < 0) {
pr_debug("perf_evlist__open: %s\n",
- strerror_r(errno, sbuf, sizeof(sbuf)));
+ str_error_r(errno, sbuf, sizeof(sbuf)));
goto out_delete_evlist;
}
err = perf_evlist__mmap(evlist, opts.mmap_pages, false);
if (err < 0) {
pr_debug("perf_evlist__mmap: %s\n",
- strerror_r(errno, sbuf, sizeof(sbuf)));
+ str_error_r(errno, sbuf, sizeof(sbuf)));
goto out_delete_evlist;
}
diff --git a/tools/perf/tests/builtin-test.c b/tools/perf/tests/builtin-test.c
index 07c14e9..c23cbf7 100644
--- a/tools/perf/tests/builtin-test.c
+++ b/tools/perf/tests/builtin-test.c
@@ -258,7 +258,7 @@
if (child < 0) {
pr_err("failed to fork test: %s\n",
- strerror_r(errno, sbuf, sizeof(sbuf)));
+ str_error_r(errno, sbuf, sizeof(sbuf)));
return -1;
}
diff --git a/tools/perf/tests/event-times.c b/tools/perf/tests/event-times.c
index 9f5698a..19ef77b 100644
--- a/tools/perf/tests/event-times.c
+++ b/tools/perf/tests/event-times.c
@@ -37,7 +37,7 @@
err = perf_evlist__open(evlist);
if (err < 0) {
pr_debug("perf_evlist__open: %s\n",
- strerror_r(errno, sbuf, sizeof(sbuf)));
+ str_error_r(errno, sbuf, sizeof(sbuf)));
return err;
}
diff --git a/tools/perf/tests/mmap-basic.c b/tools/perf/tests/mmap-basic.c
index aea33f5..5c9b931 100644
--- a/tools/perf/tests/mmap-basic.c
+++ b/tools/perf/tests/mmap-basic.c
@@ -49,7 +49,7 @@
sched_setaffinity(0, sizeof(cpu_set), &cpu_set);
if (sched_setaffinity(0, sizeof(cpu_set), &cpu_set) < 0) {
pr_debug("sched_setaffinity() failed on CPU %d: %s ",
- cpus->map[0], strerror_r(errno, sbuf, sizeof(sbuf)));
+ cpus->map[0], str_error_r(errno, sbuf, sizeof(sbuf)));
goto out_free_cpus;
}
@@ -79,7 +79,7 @@
if (perf_evsel__open(evsels[i], cpus, threads) < 0) {
pr_debug("failed to open counter: %s, "
"tweak /proc/sys/kernel/perf_event_paranoid?\n",
- strerror_r(errno, sbuf, sizeof(sbuf)));
+ str_error_r(errno, sbuf, sizeof(sbuf)));
goto out_delete_evlist;
}
@@ -89,7 +89,7 @@
if (perf_evlist__mmap(evlist, 128, true) < 0) {
pr_debug("failed to mmap events: %d (%s)\n", errno,
- strerror_r(errno, sbuf, sizeof(sbuf)));
+ str_error_r(errno, sbuf, sizeof(sbuf)));
goto out_delete_evlist;
}
diff --git a/tools/perf/tests/openat-syscall-all-cpus.c b/tools/perf/tests/openat-syscall-all-cpus.c
index ad1cb63..265abb1 100644
--- a/tools/perf/tests/openat-syscall-all-cpus.c
+++ b/tools/perf/tests/openat-syscall-all-cpus.c
@@ -41,7 +41,7 @@
if (perf_evsel__open(evsel, cpus, threads) < 0) {
pr_debug("failed to open counter: %s, "
"tweak /proc/sys/kernel/perf_event_paranoid?\n",
- strerror_r(errno, sbuf, sizeof(sbuf)));
+ str_error_r(errno, sbuf, sizeof(sbuf)));
goto out_evsel_delete;
}
@@ -62,7 +62,7 @@
if (sched_setaffinity(0, sizeof(cpu_set), &cpu_set) < 0) {
pr_debug("sched_setaffinity() failed on CPU %d: %s ",
cpus->map[cpu],
- strerror_r(errno, sbuf, sizeof(sbuf)));
+ str_error_r(errno, sbuf, sizeof(sbuf)));
goto out_close_fd;
}
for (i = 0; i < ncalls; ++i) {
diff --git a/tools/perf/tests/openat-syscall-tp-fields.c b/tools/perf/tests/openat-syscall-tp-fields.c
index 4344fe4..942dbf4 100644
--- a/tools/perf/tests/openat-syscall-tp-fields.c
+++ b/tools/perf/tests/openat-syscall-tp-fields.c
@@ -51,14 +51,14 @@
err = perf_evlist__open(evlist);
if (err < 0) {
pr_debug("perf_evlist__open: %s\n",
- strerror_r(errno, sbuf, sizeof(sbuf)));
+ str_error_r(errno, sbuf, sizeof(sbuf)));
goto out_delete_evlist;
}
err = perf_evlist__mmap(evlist, UINT_MAX, false);
if (err < 0) {
pr_debug("perf_evlist__mmap: %s\n",
- strerror_r(errno, sbuf, sizeof(sbuf)));
+ str_error_r(errno, sbuf, sizeof(sbuf)));
goto out_delete_evlist;
}
diff --git a/tools/perf/tests/openat-syscall.c b/tools/perf/tests/openat-syscall.c
index 1184f9b..d741412 100644
--- a/tools/perf/tests/openat-syscall.c
+++ b/tools/perf/tests/openat-syscall.c
@@ -29,7 +29,7 @@
if (perf_evsel__open_per_thread(evsel, threads) < 0) {
pr_debug("failed to open counter: %s, "
"tweak /proc/sys/kernel/perf_event_paranoid?\n",
- strerror_r(errno, sbuf, sizeof(sbuf)));
+ str_error_r(errno, sbuf, sizeof(sbuf)));
goto out_evsel_delete;
}
diff --git a/tools/perf/tests/perf-record.c b/tools/perf/tests/perf-record.c
index b836ee6a..3eb67a9 100644
--- a/tools/perf/tests/perf-record.c
+++ b/tools/perf/tests/perf-record.c
@@ -104,7 +104,7 @@
err = sched__get_first_possible_cpu(evlist->workload.pid, &cpu_mask);
if (err < 0) {
pr_debug("sched__get_first_possible_cpu: %s\n",
- strerror_r(errno, sbuf, sizeof(sbuf)));
+ str_error_r(errno, sbuf, sizeof(sbuf)));
goto out_delete_evlist;
}
@@ -115,7 +115,7 @@
*/
if (sched_setaffinity(evlist->workload.pid, cpu_mask_size, &cpu_mask) < 0) {
pr_debug("sched_setaffinity: %s\n",
- strerror_r(errno, sbuf, sizeof(sbuf)));
+ str_error_r(errno, sbuf, sizeof(sbuf)));
goto out_delete_evlist;
}
@@ -126,7 +126,7 @@
err = perf_evlist__open(evlist);
if (err < 0) {
pr_debug("perf_evlist__open: %s\n",
- strerror_r(errno, sbuf, sizeof(sbuf)));
+ str_error_r(errno, sbuf, sizeof(sbuf)));
goto out_delete_evlist;
}
@@ -138,7 +138,7 @@
err = perf_evlist__mmap(evlist, opts.mmap_pages, false);
if (err < 0) {
pr_debug("perf_evlist__mmap: %s\n",
- strerror_r(errno, sbuf, sizeof(sbuf)));
+ str_error_r(errno, sbuf, sizeof(sbuf)));
goto out_delete_evlist;
}
diff --git a/tools/perf/tests/sw-clock.c b/tools/perf/tests/sw-clock.c
index 36e8ce1..4c9fd04 100644
--- a/tools/perf/tests/sw-clock.c
+++ b/tools/perf/tests/sw-clock.c
@@ -70,7 +70,7 @@
err = -errno;
pr_debug("Couldn't open evlist: %s\nHint: check %s, using %" PRIu64 " in this test.\n",
- strerror_r(errno, sbuf, sizeof(sbuf)),
+ str_error_r(errno, sbuf, sizeof(sbuf)),
knob, (u64)attr.sample_freq);
goto out_delete_evlist;
}
@@ -78,7 +78,7 @@
err = perf_evlist__mmap(evlist, 128, true);
if (err < 0) {
pr_debug("failed to mmap event: %d (%s)\n", errno,
- strerror_r(errno, sbuf, sizeof(sbuf)));
+ str_error_r(errno, sbuf, sizeof(sbuf)));
goto out_delete_evlist;
}
diff --git a/tools/perf/tests/task-exit.c b/tools/perf/tests/task-exit.c
index 2dfff7a..01a5ba2 100644
--- a/tools/perf/tests/task-exit.c
+++ b/tools/perf/tests/task-exit.c
@@ -91,13 +91,13 @@
err = perf_evlist__open(evlist);
if (err < 0) {
pr_debug("Couldn't open the evlist: %s\n",
- strerror_r(-err, sbuf, sizeof(sbuf)));
+ str_error_r(-err, sbuf, sizeof(sbuf)));
goto out_delete_evlist;
}
if (perf_evlist__mmap(evlist, 128, true) < 0) {
pr_debug("failed to mmap events: %d (%s)\n", errno,
- strerror_r(errno, sbuf, sizeof(sbuf)));
+ str_error_r(errno, sbuf, sizeof(sbuf)));
goto out_delete_evlist;
}
diff --git a/tools/perf/ui/browsers/hists.c b/tools/perf/ui/browsers/hists.c
index e08b8f7..13d4143 100644
--- a/tools/perf/ui/browsers/hists.c
+++ b/tools/perf/ui/browsers/hists.c
@@ -2029,7 +2029,7 @@
fp = fopen(filename, "w");
if (fp == NULL) {
char bf[64];
- const char *err = strerror_r(errno, bf, sizeof(bf));
+ const char *err = str_error_r(errno, bf, sizeof(bf));
ui_helpline__fpush("Couldn't write to %s: %s", filename, err);
return -1;
}
diff --git a/tools/perf/util/Build b/tools/perf/util/Build
index fced833..a6a8053 100644
--- a/tools/perf/util/Build
+++ b/tools/perf/util/Build
@@ -70,6 +70,7 @@
libperf-y += stat-shadow.o
libperf-y += record.o
libperf-y += srcline.o
+libperf-y += str_error_r.o
libperf-y += data.o
libperf-y += tsc.o
libperf-y += cloexec.o
@@ -173,6 +174,10 @@
$(call rule_mkdir)
$(call if_changed_dep,cc_o_c)
+$(OUTPUT)util/str_error_r.o: ../lib/str_error_r.c FORCE
+ $(call rule_mkdir)
+ $(call if_changed_dep,cc_o_c)
+
$(OUTPUT)util/hweight.o: ../lib/hweight.c FORCE
$(call rule_mkdir)
$(call if_changed_dep,cc_o_c)
diff --git a/tools/perf/util/bpf-loader.c b/tools/perf/util/bpf-loader.c
index dcc8845..8445e89 100644
--- a/tools/perf/util/bpf-loader.c
+++ b/tools/perf/util/bpf-loader.c
@@ -1589,7 +1589,7 @@
snprintf(buf, size, "Unknown bpf loader error %d", err);
else
snprintf(buf, size, "%s",
- strerror_r(err, sbuf, sizeof(sbuf)));
+ str_error_r(err, sbuf, sizeof(sbuf)));
buf[size - 1] = '\0';
return -1;
diff --git a/tools/perf/util/cloexec.c b/tools/perf/util/cloexec.c
index 2babdda..fde772d 100644
--- a/tools/perf/util/cloexec.c
+++ b/tools/perf/util/cloexec.c
@@ -58,7 +58,7 @@
WARN_ONCE(err != EINVAL && err != EBUSY,
"perf_event_open(..., PERF_FLAG_FD_CLOEXEC) failed with unexpected error %d (%s)\n",
- err, strerror_r(err, sbuf, sizeof(sbuf)));
+ err, str_error_r(err, sbuf, sizeof(sbuf)));
/* not supported, confirm error related to PERF_FLAG_FD_CLOEXEC */
while (1) {
@@ -76,7 +76,7 @@
if (WARN_ONCE(fd < 0 && err != EBUSY,
"perf_event_open(..., 0) failed unexpectedly with error %d (%s)\n",
- err, strerror_r(err, sbuf, sizeof(sbuf))))
+ err, str_error_r(err, sbuf, sizeof(sbuf))))
return -1;
return 0;
diff --git a/tools/perf/util/data.c b/tools/perf/util/data.c
index be835161..60bfc9c 100644
--- a/tools/perf/util/data.c
+++ b/tools/perf/util/data.c
@@ -57,7 +57,7 @@
int err = errno;
pr_err("failed to open %s: %s", file->path,
- strerror_r(err, sbuf, sizeof(sbuf)));
+ str_error_r(err, sbuf, sizeof(sbuf)));
if (err == ENOENT && !strcmp(file->path, "perf.data"))
pr_err(" (try 'perf record' first)");
pr_err("\n");
@@ -99,7 +99,7 @@
if (fd < 0)
pr_err("failed to open %s : %s\n", file->path,
- strerror_r(errno, sbuf, sizeof(sbuf)));
+ str_error_r(errno, sbuf, sizeof(sbuf)));
return fd;
}
diff --git a/tools/perf/util/debug.h b/tools/perf/util/debug.h
index 14bafda..d242adc 100644
--- a/tools/perf/util/debug.h
+++ b/tools/perf/util/debug.h
@@ -38,7 +38,7 @@
#define pr_oe_time(t, fmt, ...) pr_time_N(1, debug_ordered_events, t, pr_fmt(fmt), ##__VA_ARGS__)
#define pr_oe_time2(t, fmt, ...) pr_time_N(2, debug_ordered_events, t, pr_fmt(fmt), ##__VA_ARGS__)
-#define STRERR_BUFSIZE 128 /* For the buffer size of strerror_r */
+#define STRERR_BUFSIZE 128 /* For the buffer size of str_error_r */
int dump_printf(const char *fmt, ...) __attribute__((format(printf, 1, 2)));
void trace_event(union perf_event *event);
diff --git a/tools/perf/util/dso.c b/tools/perf/util/dso.c
index e1de6cc..774f6ec 100644
--- a/tools/perf/util/dso.c
+++ b/tools/perf/util/dso.c
@@ -335,7 +335,7 @@
return fd;
pr_debug("dso open failed: %s\n",
- strerror_r(errno, sbuf, sizeof(sbuf)));
+ str_error_r(errno, sbuf, sizeof(sbuf)));
if (!dso__data_open_cnt || errno != EMFILE)
break;
@@ -786,7 +786,7 @@
if (fstat(dso->data.fd, &st) < 0) {
ret = -errno;
pr_err("dso cache fstat failed: %s\n",
- strerror_r(errno, sbuf, sizeof(sbuf)));
+ str_error_r(errno, sbuf, sizeof(sbuf)));
dso->data.status = DSO_DATA_STATUS_ERROR;
goto out;
}
@@ -1366,7 +1366,7 @@
BUG_ON(buflen == 0);
if (errnum >= 0) {
- const char *err = strerror_r(errnum, buf, buflen);
+ const char *err = str_error_r(errnum, buf, buflen);
if (err != buf)
scnprintf(buf, buflen, "%s", err);
diff --git a/tools/perf/util/evlist.c b/tools/perf/util/evlist.c
index 1135077..f2d478d 100644
--- a/tools/perf/util/evlist.c
+++ b/tools/perf/util/evlist.c
@@ -1790,7 +1790,7 @@
int err, char *buf, size_t size)
{
int printed, value;
- char sbuf[STRERR_BUFSIZE], *emsg = strerror_r(err, sbuf, sizeof(sbuf));
+ char sbuf[STRERR_BUFSIZE], *emsg = str_error_r(err, sbuf, sizeof(sbuf));
switch (err) {
case EACCES:
@@ -1842,7 +1842,7 @@
int perf_evlist__strerror_mmap(struct perf_evlist *evlist, int err, char *buf, size_t size)
{
- char sbuf[STRERR_BUFSIZE], *emsg = strerror_r(err, sbuf, sizeof(sbuf));
+ char sbuf[STRERR_BUFSIZE], *emsg = str_error_r(err, sbuf, sizeof(sbuf));
int pages_attempted = evlist->mmap_len / 1024, pages_max_per_user, printed = 0;
switch (err) {
diff --git a/tools/perf/util/evsel.c b/tools/perf/util/evsel.c
index 0fea724..d8c2298 100644
--- a/tools/perf/util/evsel.c
+++ b/tools/perf/util/evsel.c
@@ -2419,7 +2419,7 @@
"The sys_perf_event_open() syscall returned with %d (%s) for event (%s).\n"
"/bin/dmesg may provide additional information.\n"
"No CONFIG_PERF_EVENTS=y kernel support configured?",
- err, strerror_r(err, sbuf, sizeof(sbuf)),
+ err, str_error_r(err, sbuf, sizeof(sbuf)),
perf_evsel__name(evsel));
}
diff --git a/tools/perf/util/llvm-utils.c b/tools/perf/util/llvm-utils.c
index 40b6f72..282c30f 100644
--- a/tools/perf/util/llvm-utils.c
+++ b/tools/perf/util/llvm-utils.c
@@ -106,7 +106,7 @@
file = popen(cmd, "r");
if (!file) {
pr_err("ERROR: unable to popen cmd: %s\n",
- strerror_r(errno, serr, sizeof(serr)));
+ str_error_r(errno, serr, sizeof(serr)));
return -EINVAL;
}
@@ -140,7 +140,7 @@
if (ferror(file)) {
pr_err("ERROR: error occurred when reading from pipe: %s\n",
- strerror_r(errno, serr, sizeof(serr)));
+ str_error_r(errno, serr, sizeof(serr)));
err = -EIO;
goto errout;
}
@@ -382,7 +382,7 @@
if (path[0] != '-' && realpath(path, abspath) == NULL) {
err = errno;
pr_err("ERROR: problems with path %s: %s\n",
- path, strerror_r(err, serr, sizeof(serr)));
+ path, str_error_r(err, serr, sizeof(serr)));
return -err;
}
@@ -410,7 +410,7 @@
if (nr_cpus_avail <= 0) {
pr_err(
"WARNING:\tunable to get available CPUs in this system: %s\n"
-" \tUse 128 instead.\n", strerror_r(errno, serr, sizeof(serr)));
+" \tUse 128 instead.\n", str_error_r(errno, serr, sizeof(serr)));
nr_cpus_avail = 128;
}
snprintf(nr_cpus_avail_str, sizeof(nr_cpus_avail_str), "%d",
diff --git a/tools/perf/util/probe-event.c b/tools/perf/util/probe-event.c
index 0201f66..2b222a7 100644
--- a/tools/perf/util/probe-event.c
+++ b/tools/perf/util/probe-event.c
@@ -468,7 +468,7 @@
err = kernel_get_module_dso(module, &dso);
if (err < 0) {
if (!dso || dso->load_errno == 0) {
- if (!strerror_r(-err, reason, STRERR_BUFSIZE))
+ if (!str_error_r(-err, reason, STRERR_BUFSIZE))
strcpy(reason, "(unknown)");
} else
dso__strerror_load(dso, reason, STRERR_BUFSIZE);
@@ -806,7 +806,7 @@
error:
if (ferror(fp)) {
pr_warning("File read error: %s\n",
- strerror_r(errno, sbuf, sizeof(sbuf)));
+ str_error_r(errno, sbuf, sizeof(sbuf)));
return -1;
}
return 0;
@@ -886,7 +886,7 @@
fp = fopen(lr->path, "r");
if (fp == NULL) {
pr_warning("Failed to open %s: %s\n", lr->path,
- strerror_r(errno, sbuf, sizeof(sbuf)));
+ str_error_r(errno, sbuf, sizeof(sbuf)));
return -errno;
}
/* Skip to starting line number */
diff --git a/tools/perf/util/probe-file.c b/tools/perf/util/probe-file.c
index 5b563b2..98398b5 100644
--- a/tools/perf/util/probe-file.c
+++ b/tools/perf/util/probe-file.c
@@ -50,7 +50,7 @@
else
pr_warning("Failed to open %cprobe_events: %s\n",
uprobe ? 'u' : 'k',
- strerror_r(-err, sbuf, sizeof(sbuf)));
+ str_error_r(-err, sbuf, sizeof(sbuf)));
}
static void print_both_open_warning(int kerr, int uerr)
@@ -64,9 +64,9 @@
else {
char sbuf[STRERR_BUFSIZE];
pr_warning("Failed to open kprobe events: %s.\n",
- strerror_r(-kerr, sbuf, sizeof(sbuf)));
+ str_error_r(-kerr, sbuf, sizeof(sbuf)));
pr_warning("Failed to open uprobe events: %s.\n",
- strerror_r(-uerr, sbuf, sizeof(sbuf)));
+ str_error_r(-uerr, sbuf, sizeof(sbuf)));
}
}
@@ -224,7 +224,7 @@
if (write(fd, buf, strlen(buf)) < (int)strlen(buf)) {
ret = -errno;
pr_warning("Failed to write event: %s\n",
- strerror_r(errno, sbuf, sizeof(sbuf)));
+ str_error_r(errno, sbuf, sizeof(sbuf)));
}
}
free(buf);
@@ -262,7 +262,7 @@
return 0;
error:
pr_warning("Failed to delete event: %s\n",
- strerror_r(-ret, buf, sizeof(buf)));
+ str_error_r(-ret, buf, sizeof(buf)));
return ret;
}
diff --git a/tools/perf/util/probe-finder.c b/tools/perf/util/probe-finder.c
index 1259839..f2d9ff0 100644
--- a/tools/perf/util/probe-finder.c
+++ b/tools/perf/util/probe-finder.c
@@ -381,7 +381,7 @@
if (ret >= 16)
ret = -E2BIG;
pr_warning("Failed to convert variable type: %s\n",
- strerror_r(-ret, sbuf, sizeof(sbuf)));
+ str_error_r(-ret, sbuf, sizeof(sbuf)));
return ret;
}
tvar->type = strdup(buf);
@@ -809,7 +809,7 @@
fp = fopen(fname, "r");
if (!fp) {
pr_warning("Failed to open %s: %s\n", fname,
- strerror_r(errno, sbuf, sizeof(sbuf)));
+ str_error_r(errno, sbuf, sizeof(sbuf)));
return -errno;
}
diff --git a/tools/perf/util/python-ext-sources b/tools/perf/util/python-ext-sources
index 36c6862..49210b7 100644
--- a/tools/perf/util/python-ext-sources
+++ b/tools/perf/util/python-ext-sources
@@ -13,6 +13,7 @@
../lib/bitmap.c
../lib/find_bit.c
../lib/hweight.c
+../lib/str_error_r.c
util/thread_map.c
util/util.c
util/xyarray.c
diff --git a/tools/perf/util/target.c b/tools/perf/util/target.c
index a53603b..5898af4 100644
--- a/tools/perf/util/target.c
+++ b/tools/perf/util/target.c
@@ -121,7 +121,7 @@
BUG_ON(buflen == 0);
if (errnum >= 0) {
- const char *err = strerror_r(errnum, buf, buflen);
+ const char *err = str_error_r(errnum, buf, buflen);
if (err != buf)
scnprintf(buf, buflen, "%s", err);
diff --git a/tools/perf/util/util.h b/tools/perf/util/util.h
index 1e8c316..2370cfb 100644
--- a/tools/perf/util/util.h
+++ b/tools/perf/util/util.h
@@ -360,4 +360,5 @@
void print_binary(unsigned char *data, size_t len,
size_t bytes_per_line, print_binary_t printer,
void *extra);
+
#endif /* GIT_COMPAT_UTIL_H */