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| author | Arnaldo Carvalho de Melo | 2016-07-06 16:56:20 +0200 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo | 2016-07-12 20:19:47 +0200 |
| commit | c8b5f2c96d1bf6cefcbe12f67dce0b892fe20512 (patch) | |
| tree | e6f40aa67f1a3ea28c53bf74fc1d51c9c3ec74c2 /tools/perf/ui | |
| parent | perf trace beauty open_flags: Add more conditional defines (diff) | |
| download | kernel-qcow2-linux-c8b5f2c96d1bf6cefcbe12f67dce0b892fe20512.tar.gz kernel-qcow2-linux-c8b5f2c96d1bf6cefcbe12f67dce0b892fe20512.tar.xz kernel-qcow2-linux-c8b5f2c96d1bf6cefcbe12f67dce0b892fe20512.zip | |
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>
Diffstat (limited to 'tools/perf/ui')
| -rw-r--r-- | tools/perf/ui/browsers/hists.c | 2 |
1 files changed, 1 insertions, 1 deletions
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; } |