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signal.c: for valgrind

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* signal.c (ruby_signal): suppress valgrind error in
  install_sighandler().

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@41931 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
This commit is contained in:
nobu 2013-07-12 07:37:31 +00:00
parent 8b8cce322b
commit 342259a328
1 changed files with 14 additions and 0 deletions
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14
signal.c
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@ -23,6 +23,19 @@
# include <unistd.h> # include <unistd.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
#if defined(__native_client__) && defined(NACL_NEWLIB) #if defined(__native_client__) && defined(NACL_NEWLIB)
# include "nacl/signal.h" # include "nacl/signal.h"
#endif #endif
@ -521,6 +534,7 @@ ruby_signal(int signum, sighandler_t handler)
) )
sigact.sa_flags |= SA_ONSTACK; sigact.sa_flags |= SA_ONSTACK;
#endif #endif
VALGRIND_MAKE_MEM_DEFINED(&old, sizeof(old));
if (sigaction(signum, &sigact, &old) < 0) { if (sigaction(signum, &sigact, &old) < 0) {
if (errno != 0 && errno != EINVAL) { if (errno != 0 && errno != EINVAL) {
rb_bug_errno("sigaction", errno); rb_bug_errno("sigaction", errno);