Commit-ID: 76267147f233f347dbd8f4f8c05492e5ea0a7dce
Gitweb: http://git.kernel.org/tip/76267147f233f347dbd8f4f8c05492e5ea0a7dce
Author: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
AuthorDate: Wed, 23 Mar 2016 17:42:21 -0300
Committer: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
CommitDate: Wed, 23 Mar 2016 17:42:21 -0300
perf llvm: Use strerror_r instead of the thread unsafe strerror one
Cc: Adrian Hunter <adrian.hunter@xxxxxxxxx>
Cc: Jiri Olsa <jolsa@xxxxxxxxxx>
Cc: Namhyung Kim <namhyung@xxxxxxxxxx>
Cc: Wang Nan <wangnan0@xxxxxxxxxx>
Link: http://lkml.kernel.org/n/tip-5njrq9dltckgm624omw9ljgu@xxxxxxxxxxxxxx
Signed-off-by: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
---
tools/perf/util/llvm-utils.c | 7 ++++---
1 file changed, 4 insertions(+), 3 deletions(-)
diff --git a/tools/perf/util/llvm-utils.c b/tools/perf/util/llvm-utils.c
index aab855f..33071d6 100644
--- a/tools/perf/util/llvm-utils.c
+++ b/tools/perf/util/llvm-utils.c
@@ -98,11 +98,12 @@ read_from_pipe(const char *cmd, void **p_buf, size_t *p_read_sz)
void *buf = NULL;
FILE *file = NULL;
size_t read_sz = 0, buf_sz = 0;
+ char serr[STRERR_BUFSIZE];
file = popen(cmd, "r");
if (!file) {
pr_err("ERROR: unable to popen cmd: %s\n",
- strerror(errno));
+ strerror_r(errno, serr, sizeof(serr)));
return -EINVAL;
}
@@ -136,7 +137,7 @@ 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(errno));
+ strerror_r(errno, serr, sizeof(serr)));
err = -EIO;
goto errout;
}
@@ -370,7 +371,7 @@ 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(errno));
+" \tUse 128 instead.\n", strerror_r(errno, serr, sizeof(serr)));
nr_cpus_avail = 128;
}
snprintf(nr_cpus_avail_str, sizeof(nr_cpus_avail_str), "%d",
--
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