diff options
| author | akr <akr@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2007-08-19 04:34:44 +0000 |
|---|---|---|
| committer | akr <akr@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2007-08-19 04:34:44 +0000 |
| commit | 1d23c250f07a3d977eb5b0c9dd4fac359dc112d2 (patch) | |
| tree | 617eda2baf8bbb4f10b1543f8571f4c5a9c1eb59 /gc.c | |
| parent | 0a02ad5e2e2cdd7e3dcb33f40eae056a8dfdc639 (diff) | |
* gc.c: use VALGRIND_MAKE_MEM_UNDEFINED to detect use of collected
objects if valgrind is available. It cannot detect first 2 words
because they are used as the free list.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@13113 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Diffstat (limited to 'gc.c')
| -rw-r--r-- | gc.c | 9 |
1 files changed, 9 insertions, 0 deletions
@@ -40,8 +40,12 @@ # ifndef VALGRIND_MAKE_MEM_DEFINED # define VALGRIND_MAKE_MEM_DEFINED(p, n) VALGRIND_MAKE_READABLE(p, n) # endif +# ifndef VALGRIND_MAKE_MEM_UNDEFINED +# define VALGRIND_MAKE_MEM_UNDEFINED(p, n) VALGRIND_MAKE_WRITABLE(p, n) +# endif #else # define VALGRIND_MAKE_MEM_DEFINED(p, n) /* empty */ +# define VALGRIND_MAKE_MEM_UNDEFINED(p, n) /* empty */ #endif int rb_io_fptr_finalize(struct rb_io_t*); @@ -1099,6 +1103,7 @@ finalize_list(RVALUE *p) RVALUE *tmp = p->as.free.next; run_final((VALUE)p); if (!FL_TEST(p, FL_SINGLETON)) { /* not freeing page */ + VALGRIND_MAKE_MEM_UNDEFINED((void*)p, sizeof(RVALUE)); p->as.free.flags = 0; p->as.free.next = freelist; freelist = p; @@ -1168,6 +1173,7 @@ gc_sweep(void) final_list = p; } else { + VALGRIND_MAKE_MEM_UNDEFINED((void*)p, sizeof(RVALUE)); p->as.free.flags = 0; p->as.free.next = freelist; freelist = p; @@ -1218,6 +1224,7 @@ gc_sweep(void) void rb_gc_force_recycle(VALUE p) { + VALGRIND_MAKE_MEM_UNDEFINED((void*)p, sizeof(RVALUE)); RANY(p)->as.free.flags = 0; RANY(p)->as.free.next = freelist; freelist = RANY(p); @@ -2001,10 +2008,12 @@ rb_gc_call_finalizer_at_exit(void) else if (RANY(p)->as.data.dfree) { (*RANY(p)->as.data.dfree)(DATA_PTR(p)); } + VALGRIND_MAKE_MEM_UNDEFINED((void*)p, sizeof(RVALUE)); } else if (BUILTIN_TYPE(p) == T_FILE) { if (rb_io_fptr_finalize(RANY(p)->as.file.fptr)) { p->as.free.flags = 0; + VALGRIND_MAKE_MEM_UNDEFINED((void*)p, sizeof(RVALUE)); } } p++; |