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* signal.c (register_sigaltstack): should not add external

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variable (with some cosmetic changes).  [ruby-dev:37158]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@20341 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
This commit is contained in:
matz 2008-11-24 14:25:45 +00:00
parent bf1d53e2e0
commit 3380a05bd6
2 changed files with 15 additions and 8 deletions
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5
ChangeLog
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@ -1,3 +1,8 @@
Mon Nov 24 23:16:32 2008 Yukihiro Matsumoto <matz@ruby-lang.org>
* signal.c (register_sigaltstack): should not add external
variable (with some cosmetic changes). [ruby-dev:37158]
Mon Nov 24 22:57:25 2008 Shugo Maeda <shugo@ruby-lang.org> Mon Nov 24 22:57:25 2008 Shugo Maeda <shugo@ruby-lang.org>
* strftime.c (rb_strftime): A width specifier for %t and %n should * strftime.c (rb_strftime): A width specifier for %t and %n should

18
signal.c
View File

@ -47,11 +47,6 @@ typedef int rb_atomic_t;
# define NSIG (_SIGMAX + 1) /* For QNX */ # define NSIG (_SIGMAX + 1) /* For QNX */
#endif #endif
#if defined(SIGSEGV) && defined(HAVE_SIGALTSTACK)
#define USE_SIGALTSTACK
int is_altstack_defined = 0;
#endif
static const struct signals { static const struct signals {
const char *signm; const char *signm;
int signo; int signo;
@ -415,6 +410,10 @@ static struct {
typedef RETSIGTYPE (*sighandler_t)(int); typedef RETSIGTYPE (*sighandler_t)(int);
#ifdef POSIX_SIGNAL #ifdef POSIX_SIGNAL
#if defined(SIGSEGV) && defined(HAVE_SIGALTSTACK)
#define USE_SIGALTSTACK
#endif
#ifdef USE_SIGALTSTACK #ifdef USE_SIGALTSTACK
#ifdef SIGSTKSZ #ifdef SIGSTKSZ
#define ALT_STACK_SIZE SIGSTKSZ #define ALT_STACK_SIZE SIGSTKSZ
@ -422,14 +421,17 @@ typedef RETSIGTYPE (*sighandler_t)(int);
#define ALT_STACK_SIZE (4*1024) #define ALT_STACK_SIZE (4*1024)
#endif #endif
/* alternate stack for SIGSEGV */ /* alternate stack for SIGSEGV */
static void register_sigaltstack() { static void
register_sigaltstack()
{
static int is_altstack_defined = 0;
stack_t newSS, oldSS; stack_t newSS, oldSS;
if(is_altstack_defined) if (is_altstack_defined)
return; return;
newSS.ss_sp = malloc(ALT_STACK_SIZE); newSS.ss_sp = malloc(ALT_STACK_SIZE);
if(newSS.ss_sp == NULL) if (newSS.ss_sp == NULL)
/* should handle error */ /* should handle error */
rb_bug("register_sigaltstack. malloc error\n"); rb_bug("register_sigaltstack. malloc error\n");
newSS.ss_size = ALT_STACK_SIZE; newSS.ss_size = ALT_STACK_SIZE;