41 files changed, 113 insertions, 77 deletions

diff --git a/tools/include/linux/string.h b/tools/include/linux/string.h
index e26223f1f287..b466d0228b57 100644
--- a/tools/include/linux/string.h
+++ b/tools/include/linux/string.h
@@ -12,4 +12,6 @@ int strtobool(const char *s, bool *res);
 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 000000000000..503ae072244c
--- /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 8c8c6b9ce915..f18e781447bc 100644
--- a/tools/perf/MANIFEST
+++ b/tools/perf/MANIFEST
@@ -29,6 +29,7 @@ tools/lib/symbol/kallsyms.c
 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 72193f19d6d7..a32d72e91ffa 100644
--- a/tools/perf/arch/x86/tests/rdpmc.c
+++ b/tools/perf/arch/x86/tests/rdpmc.c
@@ -111,14 +111,14 @@ static int __test__rdpmc(void)
         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 76a4d03c7cd0..30e2b2cb2421 100644
--- a/tools/perf/builtin-buildid-cache.c
+++ b/tools/perf/builtin-buildid-cache.c
@@ -351,7 +351,7 @@ int cmd_buildid_cache(int argc, const char **argv,
                                                 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 @@ int cmd_buildid_cache(int argc, const char **argv,
                                                 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 @@ int cmd_buildid_cache(int argc, const char **argv,
                                                 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 @@ int cmd_buildid_cache(int argc, const char **argv,
                                                 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 268ab732b8aa..3bdb2c78a21b 100644
--- a/tools/perf/builtin-help.c
+++ b/tools/perf/builtin-help.c
@@ -117,7 +117,7 @@ static void exec_woman_emacs(const char *path, const char *page)
                         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 @@ static void exec_man_konqueror(const char *path, const char *page)
                         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 @@ static void exec_man_man(const char *path, const char *page)
                 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 @@ static void exec_man_cmd(const char *cmd, const char *page)
                 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 f4efef9d1eb3..5e2127e04f83 100644
--- a/tools/perf/builtin-kvm.c
+++ b/tools/perf/builtin-kvm.c
@@ -1018,13 +1018,13 @@ static int kvm_live_open_events(struct perf_kvm_stat *kvm)
         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 a1a5cd1b8d60..c6d890ad2c1a 100644
--- a/tools/perf/builtin-probe.c
+++ b/tools/perf/builtin-probe.c
@@ -308,7 +308,7 @@ static void pr_err_with_code(const char *msg, int err)
 
         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 b2b3b600adf5..d9f5cc3a3667 100644
--- a/tools/perf/builtin-record.c
+++ b/tools/perf/builtin-record.c
@@ -361,7 +361,7 @@ static int record__mmap_evlist(struct record *rec,
                         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 @@ try_again:
         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 @@ static int __cmd_record(struct record *rec, int argc, const char **argv)
 
         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 afa057666c2a..0dfe8df2ab9b 100644
--- a/tools/perf/builtin-sched.c
+++ b/tools/perf/builtin-sched.c
@@ -494,7 +494,7 @@ force_again:
                 }
                 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 c367a43525e6..8c5a3bfdfdd7 100644
--- a/tools/perf/builtin-stat.c
+++ b/tools/perf/builtin-stat.c
@@ -596,7 +596,7 @@ try_again:
         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 @@ try_again:
                 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 07fc7921980c..bd108683fcb8 100644
--- a/tools/perf/builtin-top.c
+++ b/tools/perf/builtin-top.c
@@ -907,7 +907,7 @@ try_again:
 
         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_delete:
 
 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 @@ int cmd_top(int argc, const char **argv, const char *prefix __maybe_unused)
 
         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 cf90de811523..e7e0b6e306b7 100644
--- a/tools/perf/builtin-trace.c
+++ b/tools/perf/builtin-trace.c
@@ -1601,7 +1601,7 @@ signed_print:
                 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 @@ out_error_apply_filters:
         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 8f219223f305..f7d7dbbd2af6 100644
--- a/tools/perf/perf.c
+++ b/tools/perf/perf.c
@@ -374,7 +374,7 @@ static int run_builtin(struct cmd_struct *p, int argc, const char **argv)
         /* 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 @@ static int run_builtin(struct cmd_struct *p, int argc, const char **argv)
         }
         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 @@ int main(int argc, const char **argv)
         }
 
         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 e70313fac5a5..f20ea4c0d0cb 100644
--- a/tools/perf/tests/backward-ring-buffer.c
+++ b/tools/perf/tests/backward-ring-buffer.c
@@ -60,7 +60,7 @@ static int do_test(struct perf_evlist *evlist, int mmap_pages,
         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 @@ int test__backward_ring_buffer(int subtest __maybe_unused)
         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 f31eed31c1a9..da0d87613975 100644
--- a/tools/perf/tests/bpf.c
+++ b/tools/perf/tests/bpf.c
@@ -143,14 +143,14 @@ static int do_test(struct bpf_object *obj, int (*func)(void),
         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 07c14e9f6546..c23cbf733549 100644
--- a/tools/perf/tests/builtin-test.c
+++ b/tools/perf/tests/builtin-test.c
@@ -258,7 +258,7 @@ static int run_test(struct test *test, int subtest)
 
         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 9f5698ac81ae..19ef77bd6eb4 100644
--- a/tools/perf/tests/event-times.c
+++ b/tools/perf/tests/event-times.c
@@ -37,7 +37,7 @@ static int attach__enable_on_exec(struct perf_evlist *evlist)
         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 aea33f5589c5..5c9b931b7b66 100644
--- a/tools/perf/tests/mmap-basic.c
+++ b/tools/perf/tests/mmap-basic.c
@@ -49,7 +49,7 @@ int test__basic_mmap(int subtest __maybe_unused)
         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 @@ int test__basic_mmap(int subtest __maybe_unused)
                 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 @@ int test__basic_mmap(int subtest __maybe_unused)
 
         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 ad1cb63139a7..265abb12dfff 100644
--- a/tools/perf/tests/openat-syscall-all-cpus.c
+++ b/tools/perf/tests/openat-syscall-all-cpus.c
@@ -41,7 +41,7 @@ int test__openat_syscall_event_on_all_cpus(int subtest __maybe_unused)
         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 @@ int test__openat_syscall_event_on_all_cpus(int subtest __maybe_unused)
                 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 4344fe482c1d..942dbf43d7c7 100644
--- a/tools/perf/tests/openat-syscall-tp-fields.c
+++ b/tools/perf/tests/openat-syscall-tp-fields.c
@@ -51,14 +51,14 @@ int test__syscall_openat_tp_fields(int subtest __maybe_unused)
         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 1184f9ba6499..d7414128d7fe 100644
--- a/tools/perf/tests/openat-syscall.c
+++ b/tools/perf/tests/openat-syscall.c
@@ -29,7 +29,7 @@ int test__openat_syscall_event(int subtest __maybe_unused)
         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 b836ee6a8d9b..3eb67a977b6a 100644
--- a/tools/perf/tests/perf-record.c
+++ b/tools/perf/tests/perf-record.c
@@ -104,7 +104,7 @@ int test__PERF_RECORD(int subtest __maybe_unused)
         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 @@ int test__PERF_RECORD(int subtest __maybe_unused)
          */
         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 @@ int test__PERF_RECORD(int subtest __maybe_unused)
         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 @@ int test__PERF_RECORD(int subtest __maybe_unused)
         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 36e8ce1550e3..4c9fd046d57b 100644
--- a/tools/perf/tests/sw-clock.c
+++ b/tools/perf/tests/sw-clock.c
@@ -70,7 +70,7 @@ static int __test__sw_clock_freq(enum perf_sw_ids clock_id)
 
                 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 @@ static int __test__sw_clock_freq(enum perf_sw_ids clock_id)
         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 2dfff7ac8ef3..01a5ba2788c6 100644
--- a/tools/perf/tests/task-exit.c
+++ b/tools/perf/tests/task-exit.c
@@ -91,13 +91,13 @@ int test__task_exit(int subtest __maybe_unused)
         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 e08b8f7b6d3f..13d414384739 100644
--- a/tools/perf/ui/browsers/hists.c
+++ b/tools/perf/ui/browsers/hists.c
@@ -2029,7 +2029,7 @@ static int hist_browser__dump(struct hist_browser *browser)
         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 fced8336e5fd..a6a805302312 100644
--- a/tools/perf/util/Build
+++ b/tools/perf/util/Build
@@ -70,6 +70,7 @@ libperf-y += stat.o
 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 @@ $(OUTPUT)util/libstring.o: ../lib/string.c FORCE
         $(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 dcc8845881ae..8445e89621fe 100644
--- a/tools/perf/util/bpf-loader.c
+++ b/tools/perf/util/bpf-loader.c
@@ -1589,7 +1589,7 @@ bpf_loader_strerror(int err, char *buf, size_t size)
                 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 2babddaa2481..fde772db1d5c 100644
--- a/tools/perf/util/cloexec.c
+++ b/tools/perf/util/cloexec.c
@@ -58,7 +58,7 @@ static int perf_flag_probe(void)
 
         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 @@ static int perf_flag_probe(void)
 
         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 be83516155ee..60bfc9ca1e22 100644
--- a/tools/perf/util/data.c
+++ b/tools/perf/util/data.c
@@ -57,7 +57,7 @@ static int open_file_read(struct perf_data_file *file)
                 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 @@ static int open_file_write(struct perf_data_file *file)
 
         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 14bafda79eda..d242adc3d5a2 100644
--- a/tools/perf/util/debug.h
+++ b/tools/perf/util/debug.h
@@ -38,7 +38,7 @@ extern int debug_data_convert;
 #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 e1de6cc4863e..774f6ec884d5 100644
--- a/tools/perf/util/dso.c
+++ b/tools/perf/util/dso.c
@@ -335,7 +335,7 @@ static int do_open(char *name)
                         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 @@ static int data_file_size(struct dso *dso, struct machine *machine)
         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 @@ int dso__strerror_load(struct dso *dso, char *buf, size_t buflen)
         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 113507716044..f2d478df8c3e 100644
--- a/tools/perf/util/evlist.c
+++ b/tools/perf/util/evlist.c
@@ -1790,7 +1790,7 @@ int perf_evlist__strerror_open(struct perf_evlist *evlist,
                                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 @@ out_default:
 
 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 0fea724e735c..d8c2298cd32a 100644
--- a/tools/perf/util/evsel.c
+++ b/tools/perf/util/evsel.c
@@ -2419,7 +2419,7 @@ int perf_evsel__open_strerror(struct perf_evsel *evsel, struct target *target,
         "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 40b6f7269cb4..282c30f6a51d 100644
--- a/tools/perf/util/llvm-utils.c
+++ b/tools/perf/util/llvm-utils.c
@@ -106,7 +106,7 @@ read_from_pipe(const char *cmd, void **p_buf, size_t *p_read_sz)
         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 @@ read_from_pipe(const char *cmd, void **p_buf, size_t *p_read_sz)
 
         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 @@ int llvm__compile_bpf(const char *path, void **p_obj_buf,
         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 @@ int llvm__compile_bpf(const char *path, void **p_obj_buf,
         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 0201f661ccb8..2b222a7955c9 100644
--- a/tools/perf/util/probe-event.c
+++ b/tools/perf/util/probe-event.c
@@ -468,7 +468,7 @@ static struct debuginfo *open_debuginfo(const char *module, bool silent)
                 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 @@ static int __show_one_line(FILE *fp, int l, bool skip, bool show_num)
 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 @@ static int __show_line_range(struct line_range *lr, const char *module,
         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 5b563b2e8b1d..98398b55a03f 100644
--- a/tools/perf/util/probe-file.c
+++ b/tools/perf/util/probe-file.c
@@ -50,7 +50,7 @@ static void print_open_warning(int err, bool uprobe)
         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 @@ static void print_both_open_warning(int kerr, int uerr)
         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 @@ int probe_file__add_event(int fd, struct probe_trace_event *tev)
                 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 @@ static int __del_trace_probe_event(int fd, struct str_node *ent)
         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 1259839dbf6d..f2d9ff064e2d 100644
--- a/tools/perf/util/probe-finder.c
+++ b/tools/perf/util/probe-finder.c
@@ -381,7 +381,7 @@ formatted:
                 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 @@ static int find_lazy_match_lines(struct intlist *list,
         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 36c6862119e3..49210b7a7925 100644
--- a/tools/perf/util/python-ext-sources
+++ b/tools/perf/util/python-ext-sources
@@ -13,6 +13,7 @@ util/cpumap.c
 ../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 a53603b27e52..5898af4510cc 100644
--- a/tools/perf/util/target.c
+++ b/tools/perf/util/target.c
@@ -121,7 +121,7 @@ int target__strerror(struct target *target, int errnum,
         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 1e8c3167b9fb..2370cfb902b2 100644
--- a/tools/perf/util/util.h
+++ b/tools/perf/util/util.h
@@ -360,4 +360,5 @@ typedef void (*print_binary_t)(enum binary_printer_ops,
 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 */