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ARM: Correct constants offset check

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* lib/jit_arm.c: Correct check to guard overflow of index
	of constants from program counter.
This commit is contained in:
Paulo Andrade 2014-12-21 20:55:19 -02:00
parent ce2dd3d446
commit f63d064a10
2 changed files with 8 additions and 1 deletions
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4
lib/jit_arm.c
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@ -1530,7 +1530,9 @@ _emit_code(jit_state_t *_jit)
/* update register live state */
jit_reglive(node);
if (_jitc->consts.length && _jit->pc.uc - _jitc->consts.data >= 3968) {
if (_jitc->consts.length &&
(jit_uword_t)_jit->pc.uc -
(jit_uword_t)_jitc->consts.patches[0] >= 3968) {
/* longest sequence should be 64 bytes, but preventively
* do not let it go past 128 remaining bytes before a flush */
if (node->next &&