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* signal.c (ALT_STACK_SIZE): default minimum size is insufficient

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for method calls.


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@20373 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
This commit is contained in:
nobu 2008-11-27 06:59:19 +00:00
parent 7348aa6113
commit 079505c040
2 changed files with 17 additions and 2 deletions
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15
ChangeLog
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@ -1,3 +1,18 @@
Thu Nov 27 15:59:16 2008 Nobuyoshi Nakada <nobu@ruby-lang.org>
* gc.c (ruby_stack_check): no check if using sigaltstack.
* signal.c (ALT_STACK_SIZE): default minimum size is insufficient
for method calls.
* signal.c (sigsegv): handles stack overflow if possible.
* thread.c (ruby_thread_stack_overflow): helper function to raise
sysstack_error.
* thread_pthread.c (ruby_stack_overflowed_p): checks for stack
overflow.
Thu Nov 27 10:40:52 2008 Yukihiro Matsumoto <matz@ruby-lang.org> Thu Nov 27 10:40:52 2008 Yukihiro Matsumoto <matz@ruby-lang.org>
* ext/bigdecimal/bigdecimal.c (BigDecimal_div2): should return * ext/bigdecimal/bigdecimal.c (BigDecimal_div2): should return

4
signal.c
View file

@ -417,7 +417,7 @@ typedef RETSIGTYPE (*sighandler_t)(int);
#ifdef USE_SIGALTSTACK #ifdef USE_SIGALTSTACK
#define SIGINFO_ARG , siginfo_t *info, void *ctx #define SIGINFO_ARG , siginfo_t *info, void *ctx
#ifdef SIGSTKSZ #ifdef SIGSTKSZ
#define ALT_STACK_SIZE SIGSTKSZ #define ALT_STACK_SIZE (SIGSTKSZ*2)
#else #else
#define ALT_STACK_SIZE (4*1024) #define ALT_STACK_SIZE (4*1024)
#endif #endif
@ -431,7 +431,7 @@ register_sigaltstack()
if (is_altstack_defined) if (is_altstack_defined)
return; return;
newSS.ss_sp = malloc(ALT_STACK_SIZE * 2); 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");