path: root/gc.h
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authorakr <akr@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>2007-07-14 07:19:59 (GMT)
committerakr <akr@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>2007-07-14 07:19:59 (GMT)
commit0886a4d8a06a609445f04351dc1e899dd59a3678 (patch)
treefa5e3212221e0ba4d8b8641d7f122e3660541b22 /gc.h
parenta5941516685eac751193ea88424be5588698b2c7 (diff)
* add --enable-valgrind.
* gc.h (SET_MACHINE_STACK_END): new macro to replace rb_gc_set_stack_end. it find out accurate stack boundary by asm using gcc on x86. * thread.c (rb_gc_set_stack_end): don't define if asm-version SET_MACHINE_STACK_END is available. * gc.c (mark_current_thread): extracted from garbage_collect. it use SET_MACHINE_STACK_END to not scan out of stack area. it notify conservative GC information to valgrind if --enable-valgrind. git-svn-id: svn+ssh:// b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Diffstat (limited to 'gc.h')
1 files changed, 7 insertions, 0 deletions
diff --git a/gc.h b/gc.h
index b059813..c184409 100644
--- a/gc.h
+++ b/gc.h
@@ -2,7 +2,14 @@
#ifndef RUBY_GC_H
#define RUBY_GC_H 1
+#if defined(__i386) && defined(__GNUC__)
+#define SET_MACHINE_STACK_END(p) __asm__("mov %%esp, %0" : "=r" (*p))
NOINLINE(void rb_gc_set_stack_end(VALUE **stack_end_p));
+#define SET_MACHINE_STACK_END(p) rb_gc_set_stack_end(p)
NOINLINE(void rb_gc_save_machine_context(rb_thread_t *));
/* for GC debug */