lkml.org 
[lkml]   [2016]   [Mar]   [24]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
Date
From
Subject[tip:perf/urgent] perf llvm: Use strerror_r instead of the thread unsafe strerror one
Commit-ID:  76267147f233f347dbd8f4f8c05492e5ea0a7dce
Gitweb: http://git.kernel.org/tip/76267147f233f347dbd8f4f8c05492e5ea0a7dce
Author: Arnaldo Carvalho de Melo <acme@redhat.com>
AuthorDate: Wed, 23 Mar 2016 17:42:21 -0300
Committer: Arnaldo Carvalho de Melo <acme@redhat.com>
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@intel.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-5njrq9dltckgm624omw9ljgu@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
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",
\
 
 \ /
  Last update: 2016-03-24 09:01    [W:0.063 / U:0.192 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site