diff options
| -rw-r--r-- | gc.c | 18 |
1 files changed, 11 insertions, 7 deletions
@@ -3937,12 +3937,18 @@ ruby_stack_length(VALUE **p) return STACK_LENGTH; } +#ifndef PREVENT_STACK_OVERFLOW #if !(defined(POSIX_SIGNAL) && defined(SIGSEGV) && defined(HAVE_SIGALTSTACK)) +# define PREVENT_STACK_OVERFLOW 1 +#else +# define PREVENT_STACK_OVERFLOW 0 +#endif +#endif +#if PREVENT_STACK_OVERFLOW static int -stack_check(int water_mark) +stack_check(rb_thread_t *th, int water_mark) { int ret; - rb_thread_t *th = GET_THREAD(); SET_STACK_END; ret = STACK_LENGTH > STACK_LEVEL_MAX - water_mark; #ifdef __ia64 @@ -3953,6 +3959,8 @@ stack_check(int water_mark) #endif return ret; } +#else +#define stack_check(th, water_mark) FALSE #endif #define STACKFRAME_FOR_CALL_CFUNC 512 @@ -3960,11 +3968,7 @@ stack_check(int water_mark) int ruby_stack_check(void) { -#if defined(POSIX_SIGNAL) && defined(SIGSEGV) && defined(HAVE_SIGALTSTACK) - return 0; -#else - return stack_check(STACKFRAME_FOR_CALL_CFUNC); -#endif + return stack_check(GET_THREAD(), STACKFRAME_FOR_CALL_CFUNC); } ATTRIBUTE_NO_ADDRESS_SAFETY_ANALYSIS |