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initial check-in, version 0.5.0

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This commit is contained in:
Rich Felker
2011-02-12 00:22:29 -05:00
commit 0b44a0315b
1021 changed files with 45711 additions and 0 deletions
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39
src/thread/pthread_self.c Normal file
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#include "pthread_impl.h"
static struct pthread main_thread;
#undef errno
static int *errno_location()
{
return pthread_self()->errno_ptr;
}
static int init_main_thread()
{
main_thread.tlsdesc[0] = -1;
main_thread.tlsdesc[1] = (long)&main_thread;
main_thread.tlsdesc[2] = SIZE_MAX/PAGE_SIZE;
main_thread.tlsdesc[3] = 0x51;
main_thread.self = &main_thread;
main_thread.errno_ptr = __errno_location();
if (__set_thread_area(main_thread.tlsdesc) < 0)
return -1;
syscall1(__NR_set_tid_address, (long)&main_thread.tid);
libc.errno_location = errno_location;
main_thread.tid = main_thread.pid = getpid();
return 0;
}
#undef pthread_self
pthread_t pthread_self()
{
static int init, failed;
if (!init) {
if (failed) return 0;
if (init_main_thread() < 0) failed = 1;
if (failed) return 0;
init = 1;
}
return __pthread_self();
}