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use bss instead of mmap for main thread's pthread thread-specific data

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this simplifies code and removes a failure case
This commit is contained in:
Rich Felker 2011-04-01 22:07:59 -04:00
parent 5243e5f160
commit 6c16d3e98a
2 changed files with 4 additions and 9 deletions
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1
src/thread/pthread_key_create.c
View File

@ -1,6 +1,7 @@
#include "pthread_impl.h"
const size_t __pthread_tsd_size = sizeof(void *) * PTHREAD_KEYS_MAX;
void *__pthread_tsd_main[PTHREAD_KEYS_MAX] = { 0 };
static void nodtor(void *dummy)
{

12
src/thread/pthread_self.c
View File

@ -3,8 +3,8 @@
static struct pthread main_thread;
/* pthread_key_create.c overrides this */
static const size_t dummy = 0;
weak_alias(dummy, __pthread_tsd_size);
static const void *dummy[1] = { 0 };
weak_alias(dummy, __pthread_tsd_main);
#undef errno
static int *errno_location()
@ -14,13 +14,7 @@ static int *errno_location()
static int init_main_thread()
{
void *tsd = 0;
if (__pthread_tsd_size) {
tsd = mmap(0, __pthread_tsd_size, PROT_READ|PROT_WRITE,
MAP_PRIVATE|MAP_ANONYMOUS, -1, 0);
if (tsd == MAP_FAILED) return -1;
}
main_thread.tsd = tsd;
main_thread.tsd = (void **)__pthread_tsd_main;
main_thread.self = &main_thread;
if (__set_thread_area(&main_thread) < 0)
return -1;