From 6c16d3e98ab2e466bb12ded12dfad1f8f272b1f8 Mon Sep 17 00:00:00 2001 From: Rich Felker Date: Fri, 1 Apr 2011 22:07:59 -0400 Subject: [PATCH] use bss instead of mmap for main thread's pthread thread-specific data this simplifies code and removes a failure case --- src/thread/pthread_key_create.c | 1 + src/thread/pthread_self.c | 12 +++--------- 2 files changed, 4 insertions(+), 9 deletions(-) diff --git a/src/thread/pthread_key_create.c b/src/thread/pthread_key_create.c index c703bfe3..8d7f8162 100644 --- a/src/thread/pthread_key_create.c +++ b/src/thread/pthread_key_create.c @@ -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) { diff --git a/src/thread/pthread_self.c b/src/thread/pthread_self.c index c3d1be78..83efa9e8 100644 --- a/src/thread/pthread_self.c +++ b/src/thread/pthread_self.c @@ -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; -- GitLab