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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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32
sysdeps/mach/strerror_l.c
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@ -23,11 +23,7 @@
#include <string.h>
#include <mach/error.h>
#include <errorlib.h>
#include <sys/param.h>
#include <libc-symbols.h>
static __thread char *last_value;
#include <tls-internal.h>
static const char *
@ -58,13 +54,14 @@ __strerror_l (int errnum, locale_t loc)
if (system > err_max_system || ! __mach_error_systems[system].bad_sub)
{
free (last_value);
if (__asprintf (&last_value, "%s%X",
struct tls_internal_t *tls_internal = __glibc_tls_internal ();
free (tls_internal->strerror_l_buf);
if (__asprintf (&tls_internal->strerror_l_buf, "%s%X",
translate ("Error in unknown error system: ", loc),
errnum) == -1)
last_value = NULL;
tls_internal->strerror_l_buf = NULL;
return last_value;
return tls_internal->strerror_l_buf;
}
es = &__mach_error_systems[system];
@ -74,25 +71,18 @@ __strerror_l (int errnum, locale_t loc)
if (code >= es->subsystem[sub].max_code)
{
free (last_value);
if (__asprintf (&last_value, "%s%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%s %d",
translate ("Unknown error ", loc),
translate (es->subsystem[sub].subsys_name, loc),
errnum) == -1)
last_value = NULL;
tls_internal->strerror_l_buf = NULL;
return last_value;
return tls_internal->strerror_l_buf;
}
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
__strerror_thread_freeres (void)
{
free (last_value);
}
text_set_element (__libc_subfreeres, __strerror_thread_freeres);