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2000-05-05  H.J. Lu  <hjl@gnu.org>

	* sysdeps/ia64/pt-machine.h (__compare_and_swap): Change it to
	have acquire semantics.
	(__compare_and_swap_with_release_semantics): New inline
	function.
	(HAS_COMPARE_AND_SWAP_WITH_RELEASE_SEMANTICS): New macro.

2000-01-28  Hans Boehm  <hboehm@exch.hpl.hp.com>

	* manager.c: Fix the problem with signals at startup.
	Change the way that thread stacks are allocated on IA64.
	Clean up some of the guard page allocation stuff.

1999-12-19  H.J. Lu  <hjl@gnu.org>

	* internals.h (page_roundup): New.
	* attr.c (__pthread_attr_setguardsize); Use page_roundup
	instead of roundup.
	* manager.c (pthread_allocate_stack): Make sure guardaddr is
	page aligned with page_roundup if NEED_SEPARATE_REGISTER_STACK
	is define.

1999-12-17  Hans Boehm  <hboehm@exch.hpl.hp.com>

	* manager.c (pthread_allocate_stack): Unmap the stack top
	if failed to map the stack bottom.
	Fix the guard page.
	(pthread_free): Fix the guard page.

	* pthread.c (pthread_initialize): Set rlimit correctly for
	NEED_SEPARATE_REGISTER_STACK.

1999-12-16  H.J. Lu  <hjl@gnu.org>

	* pthread.c (__pthread_initialize_manager): Pass
	__pthread_manager_thread_bos instead of
	__pthread_manager_thread_tos to __clone2.

1999-12-16  H.J. Lu  <hjl@gnu.org>

	* manager.c (pthread_allocate_stack): Correct the calculation
	of "new_thread_bottom". Remove MAP_GROWSDOWN from mmap for
	stack bottom.

1999-12-13  H.J. Lu  <hjl@gnu.org>

	* sysdeps/ia64/pt-machine.h (__compare_and_swap): Added a stop
	bit after setting ar.ccv.

1999-12-12  H.J. Lu  <hjl@gnu.org>

	* manager.c (pthread_allocate_stack): Make the starting
	address of the stack bottom page aligned. FIXME: it may
	need changes in other places.
	(pthread_handle_create): Likewise.

1999-12-11  Hans Boehm  <hboehm@exch.hpl.hp.com>

	* manager.c (pthread_allocate_stack): Handle
	NEED_SEPARATE_REGISTER_STACK.
	(pthread_handle_create): Likewise.
	* pthread.c (__pthread_initialize_manager): Likewise.

	* sysdeps/ia64/pt-machine.h: Use r13 for thread pointer.

1999-12-02  H.J. Lu  <hjl@gnu.org>

	* sysdeps/ia64/pt-machine.h: New.
This commit is contained in:
Ulrich Drepper
2000-07-15 19:02:47 +00:00
parent 101c92fc39
commit 9aae19cd9a
5 changed files with 352 additions and 23 deletions
Download Patch File Download Diff File Expand all files Collapse all files

29
linuxthreads/pthread.c
View File

@@ -362,7 +362,13 @@ static void pthread_initialize(void)
/* Play with the stack size limit to make sure that no stack ever grows
beyond STACK_SIZE minus one page (to act as a guard page). */
getrlimit(RLIMIT_STACK, &limit);
#ifdef NEED_SEPARATE_REGISTER_STACK
/* STACK_SIZE bytes hold both the main stack and register backing
store. The rlimit value applies to each individually. */
max_stack = STACK_SIZE/2 - __getpagesize();
#else
max_stack = STACK_SIZE - __getpagesize();
#endif
if (limit.rlim_cur > max_stack) {
limit.rlim_cur = max_stack;
setrlimit(RLIMIT_STACK, &limit);
@@ -444,10 +450,18 @@ int __pthread_initialize_manager(void)
| __pthread_initial_thread.p_eventbuf.eventmask.event_bits[idx]))
!= 0)
{
#ifdef NEED_SEPARATE_REGISTER_STACK
pid = __clone2(__pthread_manager_event,
(void **) __pthread_manager_thread_bos,
THREAD_MANAGER_STACK_SIZE,
CLONE_VM | CLONE_FS | CLONE_FILES | CLONE_SIGHAND,
(void *)(long)manager_pipe[0]);
#else
pid = __clone(__pthread_manager_event,
(void **) __pthread_manager_thread_tos,
CLONE_VM | CLONE_FS | CLONE_FILES | CLONE_SIGHAND,
(void *)(long)manager_pipe[0]);
#endif
if (pid != -1)
{
@@ -472,9 +486,18 @@ int __pthread_initialize_manager(void)
}
if (pid == 0)
pid = __clone(__pthread_manager, (void **) __pthread_manager_thread_tos,
CLONE_VM | CLONE_FS | CLONE_FILES | CLONE_SIGHAND,
(void *)(long)manager_pipe[0]);
{
#ifdef NEED_SEPARATE_REGISTER_STACK
pid = __clone2(__pthread_manager, (void **) __pthread_manager_thread_bos,
THREAD_MANAGER_STACK_SIZE,
CLONE_VM | CLONE_FS | CLONE_FILES | CLONE_SIGHAND,
(void *)(long)manager_pipe[0]);
#else
pid = __clone(__pthread_manager, (void **) __pthread_manager_thread_tos,
CLONE_VM | CLONE_FS | CLONE_FILES | CLONE_SIGHAND,
(void *)(long)manager_pipe[0]);
#endif
}
if (pid == -1) {
free(__pthread_manager_thread_bos);
__libc_close(manager_pipe[0]);