diff options
| author | kosaki <kosaki@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2012-12-01 21:15:01 +0000 |
|---|---|---|
| committer | kosaki <kosaki@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2012-12-01 21:15:01 +0000 |
| commit | 2ba9cdcee6b0b97999c74c6fb19cdae08edd0e25 (patch) | |
| tree | 47b6f10a8a3982f5ea3fb5f514274d05b5beaa28 /gc.h | |
| parent | 5bdd03936c2a7fb5c835587535466ec76bf0ca9e (diff) | |
| download | ruby-2ba9cdcee6b0b97999c74c6fb19cdae08edd0e25.tar.gz | |
* gc.h (SET_MACHINE_STACK_END): add volatile for preventing
harmful optimization.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@38134 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Diffstat (limited to 'gc.h')
| -rw-r--r-- | gc.h | 4 |
1 files changed, 2 insertions, 2 deletions
@@ -3,9 +3,9 @@ #define RUBY_GC_H 1 #if defined(__x86_64__) && defined(__GNUC__) && !defined(__native_client__) -#define SET_MACHINE_STACK_END(p) __asm__("movq\t%%rsp, %0" : "=r" (*(p))) +#define SET_MACHINE_STACK_END(p) __asm__ volatile ("movq\t%%rsp, %0" : "=r" (*(p))) #elif defined(__i386) && defined(__GNUC__) && !defined(__native_client__) -#define SET_MACHINE_STACK_END(p) __asm__("movl\t%%esp, %0" : "=r" (*(p))) +#define SET_MACHINE_STACK_END(p) __asm__ volatile ("movl\t%%esp, %0" : "=r" (*(p))) #else NOINLINE(void rb_gc_set_stack_end(VALUE **stack_end_p)); #define SET_MACHINE_STACK_END(p) rb_gc_set_stack_end(p) |