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* cont.c (fiber_machine_stack_alloc): use MAP_STACK if it's provided.

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git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@32420 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
This commit is contained in:
kosaki 2011-07-06 12:24:25 +00:00
parent 302fcb568d
commit c454ee6c9f
2 changed files with 12 additions and 1 deletions
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4
ChangeLog
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@ -1,3 +1,7 @@
Wed Jul 6 21:23:38 2011 KOSAKI Motohiro <kosaki.motohiro@gmail.com>
* cont.c (fiber_machine_stack_alloc): use MAP_STACK if it's provided.
Wed Jul 6 21:22:16 2011 KOSAKI Motohiro <kosaki.motohiro@gmail.com>
* cont.c (fiber_machine_stack_alloc): use MAP_FAILED instead of -1.

9
cont.c
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@ -515,7 +515,14 @@ fiber_entry(void *arg)
fiber_set_stack_location();
rb_fiber_start();
}
#else /* _WIN32 */
#ifdef MAP_STACK
#define FIBER_STACK_FLAGS (MAP_PRIVATE | MAP_ANON | MAP_STACK)
#else
#define FIBER_STACK_FLAGS (MAP_PRIVATE | MAP_ANON)
#endif
static VALUE*
fiber_machine_stack_alloc(size_t size)
{
@ -536,7 +543,7 @@ fiber_machine_stack_alloc(size_t size)
else {
void *page;
STACK_GROW_DIR_DETECTION;
ptr = mmap(NULL, size, PROT_READ | PROT_WRITE, MAP_PRIVATE | MAP_ANON, -1, 0);
ptr = mmap(NULL, size, PROT_READ | PROT_WRITE, FIBER_STACK_FLAGS, -1, 0);
if (ptr == MAP_FAILED) {
rb_raise(rb_eFiberError, "can't alloc machine stack to fiber");
}