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* bignum.c (rb_big_realloc): Use VALGRIND_MAKE_MEM_UNDEFINED to

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declare undefined memory area.
  (bignew_1): Ditto.

* internal.h (VALGRIND_MAKE_MEM_DEFINED): Moved from gc.c
  (VALGRIND_MAKE_MEM_UNDEFINED): Ditto.



git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@42392 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
This commit is contained in:
akr 2013-08-06 03:26:34 +00:00
parent 0bd6f36aa7
commit 25336fa7c1
4 changed files with 24 additions and 13 deletions
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9
ChangeLog
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@ -1,3 +1,12 @@
Tue Aug 6 12:23:12 2013 Tanaka Akira <akr@fsij.org>
* bignum.c (rb_big_realloc): Use VALGRIND_MAKE_MEM_UNDEFINED to
declare undefined memory area.
(bignew_1): Ditto.
* internal.h (VALGRIND_MAKE_MEM_DEFINED): Moved from gc.c
(VALGRIND_MAKE_MEM_UNDEFINED): Ditto.
Tue Aug 6 01:40:37 2013 Zachary Scott <e@zzak.io> Tue Aug 6 01:40:37 2013 Zachary Scott <e@zzak.io>
* process.c: [DOC] Document caveats of command form of Process.spawn * process.c: [DOC] Document caveats of command form of Process.spawn

2
bignum.c
View file

@ -2886,6 +2886,7 @@ rb_big_realloc(VALUE big, long len)
ds = RBIGNUM(big)->as.heap.digits; ds = RBIGNUM(big)->as.heap.digits;
RBASIC(big)->flags |= RBIGNUM_EMBED_FLAG; RBASIC(big)->flags |= RBIGNUM_EMBED_FLAG;
RBIGNUM_SET_LEN(big, len); RBIGNUM_SET_LEN(big, len);
(void)VALGRIND_MAKE_MEM_UNDEFINED((void*)RBIGNUM(big)->as.ary, sizeof(RBIGNUM(big)->as.ary));
if (ds) { if (ds) {
MEMCPY(RBIGNUM(big)->as.ary, ds, BDIGIT, len); MEMCPY(RBIGNUM(big)->as.ary, ds, BDIGIT, len);
xfree(ds); xfree(ds);
@ -2917,6 +2918,7 @@ bignew_1(VALUE klass, long len, int sign)
if (len <= RBIGNUM_EMBED_LEN_MAX) { if (len <= RBIGNUM_EMBED_LEN_MAX) {
RBASIC(big)->flags |= RBIGNUM_EMBED_FLAG; RBASIC(big)->flags |= RBIGNUM_EMBED_FLAG;
RBIGNUM_SET_LEN(big, len); RBIGNUM_SET_LEN(big, len);
(void)VALGRIND_MAKE_MEM_UNDEFINED((void*)RBIGNUM(big)->as.ary, sizeof(RBIGNUM(big)->as.ary));
} }
else { else {
RBIGNUM(big)->as.heap.digits = ALLOC_N(BDIGIT, len); RBIGNUM(big)->as.heap.digits = ALLOC_N(BDIGIT, len);

13
gc.c
View file

@ -52,19 +52,6 @@
#include <malloc.h> #include <malloc.h>
#endif #endif
#ifdef HAVE_VALGRIND_MEMCHECK_H
# include <valgrind/memcheck.h>
# 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) 0
# define VALGRIND_MAKE_MEM_UNDEFINED(p, n) 0
#endif
#define rb_setjmp(env) RUBY_SETJMP(env) #define rb_setjmp(env) RUBY_SETJMP(env)
#define rb_jmp_buf rb_jmpbuf_t #define rb_jmp_buf rb_jmpbuf_t

13
internal.h
View file

@ -19,6 +19,19 @@ extern "C" {
#endif #endif
#endif #endif
#ifdef HAVE_VALGRIND_MEMCHECK_H
# include <valgrind/memcheck.h>
# 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) 0
# define VALGRIND_MAKE_MEM_UNDEFINED(p, n) 0
#endif
#define numberof(array) ((int)(sizeof(array) / sizeof((array)[0]))) #define numberof(array) ((int)(sizeof(array) / sizeof((array)[0])))
#define STATIC_ASSERT(name, expr) typedef int static_assert_##name##_check[1 - 2*!(expr)] #define STATIC_ASSERT(name, expr) typedef int static_assert_##name##_check[1 - 2*!(expr)]