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string: Use tls-internal on strerror_l

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The buffer allocation uses the same strategy of strsignal.

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>
This commit is contained in:
Adhemerval Zanella
2020-05-14 17:56:25 -03:00
parent 28aff04781
commit 725eeb4af1
7 changed files with 20 additions and 40 deletions
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21
string/strerror_l.c
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@@ -18,11 +18,8 @@
#include <libintl.h>
#include <locale.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <errno.h>
static __thread char *last_value;
#include <tls-internal.h>
static const char *
@@ -43,12 +40,13 @@ __strerror_l (int errnum, locale_t loc)
char *err = (char *) __get_errlist (errnum);
if (__glibc_unlikely (err == NULL))
{
free (last_value);
if (__asprintf (&last_value, "%s%d",
struct tls_internal_t *tls_internal = __glibc_tls_internal ();
free (tls_internal->strerror_l_buf);
if (__asprintf (&tls_internal->strerror_l_buf, "%s%d",
translate ("Unknown error ", loc), errnum) == -1)
last_value = NULL;
tls_internal->strerror_l_buf = NULL;
err = last_value;
err = tls_internal->strerror_l_buf;
}
else
err = (char *) translate (err, loc);
@@ -58,10 +56,3 @@ __strerror_l (int errnum, locale_t loc)
}
weak_alias (__strerror_l, strerror_l)
libc_hidden_def (__strerror_l)
void
__strerror_thread_freeres (void)
{
free (last_value);
}
text_set_element (__libc_subfreeres, __strerror_thread_freeres);