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ARM: Better check for constants offset overflow

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* lib/jit_arm.c: Better check for need to flush constants
	before the pool being no longer reachable.
This commit is contained in:
pcpa 2014-12-26 00:38:54 -02:00
parent 88aa2fcad2
commit 5eb3c3602f
2 changed files with 8 additions and 2 deletions
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5
ChangeLog
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@ -1,3 +1,8 @@
2014-12-26 Paulo Andrade <pcpa@gnu.org>
* lib/jit_arm.c: Better check for need to flush constants
before the pool being no longer reachable.
2014-12-25 Paulo Andrade <pcpa@gnu.org> 2014-12-25 Paulo Andrade <pcpa@gnu.org>
* include/lightning.h: Split jit_htonr in the new 3 interfaces * include/lightning.h: Split jit_htonr in the new 3 interfaces

5
lib/jit_arm.c
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@ -1532,8 +1532,9 @@ _emit_code(jit_state_t *_jit)
jit_reglive(node); jit_reglive(node);
if (_jitc->consts.length && if (_jitc->consts.length &&
(jit_uword_t)_jit->pc.uc - (_jit->pc.uc - _jitc->consts.data >= 3968 ||
(jit_uword_t)_jitc->consts.patches[0] >= 3968) { (jit_uword_t)_jit->pc.uc -
(jit_uword_t)_jitc->consts.patches[0] >= 3968)) {
/* longest sequence should be 64 bytes, but preventively /* longest sequence should be 64 bytes, but preventively
* do not let it go past 128 remaining bytes before a flush */ * do not let it go past 128 remaining bytes before a flush */
if (node->next && if (node->next &&