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* thread_pthread.c (get_stack): pthread_attr_getstack() doesn't

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return stack start addres, but stack base address. Thus,
  we need to add stack size for getting stack start address.
  And, we don't have to decrease guard size twice.
* thread_pthread.c (thread_start_func_1): don't use inaccurate
  stack start guess if native_thread_init_stack() can be used.
  [Bug #1813] [ruby-core:24540]



git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@32371 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
This commit is contained in:
kosaki 2011-07-02 21:18:16 +00:00
parent 560c1aeba9
commit 70dd402cd8
2 changed files with 23 additions and 8 deletions
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10
ChangeLog
View file

@ -1,3 +1,13 @@
Sun Jul 3 06:10:26 2011 KOSAKI Motohiro <kosaki.motohiro@gmail.com>
* thread_pthread.c (get_stack): pthread_attr_getstack() doesn't
return stack start addres, but stack base address. Thus,
we need to add stack size for getting stack start address.
And, we don't have to decrease guard size twice.
* thread_pthread.c (thread_start_func_1): don't use inaccurate
stack start guess if native_thread_init_stack() can be used.
[Bug #1813] [ruby-core:24540]
Sun Jul 3 04:50:08 2011 KOSAKI Motohiro <kosaki.motohiro@gmail.com>
* thread_pthread.c (get_stack): add to a care of gurad page on Mac

21
thread_pthread.c
View file

@ -463,19 +463,16 @@ get_stack(void **addr, size_t *size)
pthread_attr_t attr;
size_t guard = 0;
# ifdef HAVE_PTHREAD_GETATTR_NP
# ifdef HAVE_PTHREAD_GETATTR_NP /* Linux */
STACK_GROW_DIR_DETECTION;
CHECK_ERR(pthread_getattr_np(pthread_self(), &attr));
# ifdef HAVE_PTHREAD_ATTR_GETSTACK /* Linux */
# ifdef HAVE_PTHREAD_ATTR_GETSTACK
CHECK_ERR(pthread_attr_getstack(&attr, addr, size));
STACK_DIR_UPPER((void)0, (void)(*addr = (char *)*addr + *size));
# else
CHECK_ERR(pthread_attr_getstackaddr(&attr, addr));
CHECK_ERR(pthread_attr_getstacksize(&attr, size));
# endif
if (pthread_attr_getguardsize(&attr, &guard) == 0) {
STACK_GROW_DIR_DETECTION;
STACK_DIR_UPPER((void)0, (void)(*addr = (char *)*addr + guard));
*size -= guard;
}
# elif defined HAVE_PTHREAD_ATTR_GET_NP /* FreeBSD, DragonFly BSD, NetBSD */
CHECK_ERR(pthread_attr_init(&attr));
CHECK_ERR(pthread_attr_get_np(pthread_self(), &attr));
@ -603,6 +600,10 @@ native_thread_init_stack(rb_thread_t *th)
return 0;
}
#ifndef __CYGWIN__
#define USE_NATIVE_THREAD_INIT 1
#endif
static void *
thread_start_func_1(void *th_ptr)
{
@ -613,12 +614,16 @@ thread_start_func_1(void *th_ptr)
rb_thread_t *th = th_ptr;
VALUE stack_start;
#ifndef __CYGWIN__
#if defined USE_NATIVE_THREAD_INIT
native_thread_init_stack(th);
#endif
native_thread_init(th);
/* run */
#if defined USE_NATIVE_THREAD_INIT
thread_start_func_2(th, th->machine_stack_start, rb_ia64_bsp());
#else
thread_start_func_2(th, &stack_start, rb_ia64_bsp());
#endif
}
#if USE_THREAD_CACHE
if (1) {