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* configure.in: add --enable-valgrind.

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* 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://ci.ruby-lang.org/ruby/trunk@12785 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
This commit is contained in:
akr 2007-07-14 07:19:59 +00:00
parent a594151668
commit 0886a4d8a0
6 changed files with 108 additions and 28 deletions
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7
gc.h
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@ -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))
#else
NOINLINE(void rb_gc_set_stack_end(VALUE **stack_end_p));
#define SET_MACHINE_STACK_END(p) rb_gc_set_stack_end(p)
#define USE_CONSERVATIVE_STACK_END
#endif
NOINLINE(void rb_gc_save_machine_context(rb_thread_t *));
/* for GC debug */