X-Git-Url: http://nsz.repo.hu/git/?a=blobdiff_plain;f=src%2Fthread%2Fpthread_self.c;h=d2de2cb8f0b207be46b091365b1cc11ad2249db1;hb=81af503610761a69476a3adbe8341fa8b6d078aa;hp=686d73d598faa52b4c63507dd16221c79f6ba574;hpb=0b44a0315b47dd8eced9f3b7f31580cf14bbfc01;p=musl diff --git a/src/thread/pthread_self.c b/src/thread/pthread_self.c index 686d73d5..d2de2cb8 100644 --- a/src/thread/pthread_self.c +++ b/src/thread/pthread_self.c @@ -2,30 +2,35 @@ static struct pthread main_thread; +/* pthread_key_create.c overrides this */ +static const size_t dummy = 0; +weak_alias(dummy, __pthread_tsd_size); + #undef errno static int *errno_location() { - return pthread_self()->errno_ptr; + 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; + 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.self = &main_thread; - main_thread.errno_ptr = __errno_location(); - if (__set_thread_area(main_thread.tlsdesc) < 0) + if (__set_thread_area(&main_thread) < 0) return -1; - syscall1(__NR_set_tid_address, (long)&main_thread.tid); + main_thread.errno_ptr = __errno_location(); libc.errno_location = errno_location; - main_thread.tid = main_thread.pid = getpid(); + main_thread.tid = main_thread.pid = + syscall1(__NR_set_tid_address, (long)&main_thread.tid); return 0; } -#undef pthread_self - pthread_t pthread_self() { static int init, failed;