diff options
Diffstat (limited to 'gc.c')
| -rw-r--r-- | gc.c | 11 |
1 files changed, 7 insertions, 4 deletions
@@ -447,15 +447,17 @@ static unsigned int STACK_LEVEL_MAX = 655300; #elif STACK_GROW_DIRECTION < 0 # define STACK_UPPER(x, a, b) b #else +static int grow_direction; static int -stack_growup_p(addr) +stack_grow_direction(addr) VALUE *addr; { SET_STACK_END; - if (STACK_END > addr) return Qtrue; - return Qfalse; + if (STACK_END > addr) return grow_direction = 1; + return grow_direction = -1; } +# define stack_growup_p(x) ((grow_direction ? grow_direction : stack_grow_direction(x)) > 0) # define STACK_UPPER(x, a, b) (stack_growup_p(x) ? a : b) #endif @@ -1411,10 +1413,11 @@ Init_stack(addr) rb_gc_stack_start = _SEND; #else if (!addr) addr = (VALUE *)&addr; + STACK_UPPER(&addr, addr, ++addr); if (rb_gc_stack_start) { if (STACK_UPPER(&addr, rb_gc_stack_start > addr, - rb_gc_stack_start < ++addr)) + rb_gc_stack_start < addr)) rb_gc_stack_start = addr; return; } |