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authorAdhemerval Zanella <adhemerval.zanella@linaro.org>2020-05-14 17:44:15 -0300
committerAdhemerval Zanella <adhemerval.zanella@linaro.org>2020-07-07 14:10:58 -0300
commit28aff047818eb1726394296d27b9c7885340bead (patch)
tree5737f4a11497ea9dbe00982d12688ede57eff0a6 /sysdeps/mach
parent9deec7c8bab24659e78172dd850f4ca37c57940c (diff)
downloadglibc-28aff047818eb1726394296d27b9c7885340bead.tar.gz
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string: Implement strerror in terms of strerror_l
If the thread is terminated then __libc_thread_freeres will free the
storage via __glibc_tls_internal_free.

It is only within the calling thread that this matters.  It makes
strerror MT-safe.

Checked on x86-64-linux-gnu, i686-linux-gnu, powerpc64le-linux-gnu,
and s390x-linux-gnu.

Tested-by: Carlos O'Donell <carlos@redhat.com>
Reviewed-by: Carlos O'Donell <carlos@redhat.com>
Diffstat (limited to 'sysdeps/mach')
-rw-r--r--sysdeps/mach/strerror_l.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/sysdeps/mach/strerror_l.c b/sysdeps/mach/strerror_l.c
index f514af341e..b6c9fdbe80 100644
--- a/sysdeps/mach/strerror_l.c
+++ b/sysdeps/mach/strerror_l.c
@@ -42,7 +42,7 @@ translate (const char *str, locale_t loc)
 
 /* Return a string describing the errno code in ERRNUM.  */
 char *
-strerror_l (int errnum, locale_t loc)
+__strerror_l (int errnum, locale_t loc)
 {
   int system;
   int sub;
@@ -86,6 +86,8 @@ strerror_l (int errnum, locale_t loc)
 
   return (char *) translate (es->subsystem[sub].codes[code], loc);
 }
+weak_alias (__strerror_l, strerror_l)
+libc_hidden_def (__strerror_l)
 
 /* This is called when a thread is exiting to free the last_value string.  */
 void