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Add new test case to check stack integrity on complex stack frames.

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* check/stack.ok, check/stack.tst: New files to test data
	integrity on a deep chain of stack frames.

	* lib/jit_arm.c, lib/jit_arm-cpu.c, lib/jit_mips.c,
	lib/jit_mips-cpu.c, lib/jit_ppc.c, lib/jit_ppc-cpu.c,
	lib/jit_x86.c, lib/jit_x86-cpu.c: Calculate _jit->function->stack
	in the emit stage, otherwise it will calculate it wrong if
	need to jit_allocai space to spill registers.

	* lib/lightning.c: Correct wrong offset when updating the
	"current" jit function pointer in the code that may need to
	allocate stack space to spill registers.

	* check/lightning.c: Correct off by one data space check.

	* check/Makefile.am: Update for new test case.
This commit is contained in:
pcpa 2012-12-19 18:07:12 -02:00
parent b43ea1f908
commit a74318a1d7
14 changed files with 387 additions and 29 deletions
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2
lib/lightning.c
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@ -2298,7 +2298,7 @@ _patch_registers(jit_state_t *_jit)
node->link = NULL;
break;
case jit_code_prolog:
_jit->function = _jit->functions.ptr + node->u.w;
_jit->function = _jit->functions.ptr + node->w.w;
break;
case jit_code_epilog:
_jit->function = NULL;