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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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21
lib/jit_mips.c
View file

@ -224,12 +224,6 @@ void
_jit_epilog(jit_state_t *_jit)
{
assert(_jit->function);
_jit->function->stack = ((/* first 16 bytes must be allocated */
(_jit->function->self.alen > 16 ?
_jit->function->self.alen : 16) -
/* align stack at 8 bytes */
_jit->function->self.aoff) + 7) & -8;
assert(_jit->function->epilog->next == NULL);
jit_link(_jit->function->epilog);
_jit->function = NULL;
@ -266,13 +260,20 @@ _jit_arg_f(jit_state_t *_jit)
assert(_jit->function);
offset = (_jit->function->self.size - stack_framesize) >> 2;
if (offset < 4) {
if (offset < 3) {
if (!_jit->function->self.argi) {
offset += 4;
_jit->function->self.argf += 2;
assert(!(offset & 1));
}
else
else {
_jit->function->self.argi += 2;
if (offset & 1) {
++_jit->function->self.argi;
++offset;
_jit->function->self.size += sizeof(jit_float32_t);
}
}
}
else
offset = _jit->function->self.size;
@ -395,7 +396,7 @@ void
_jit_getarg_f(jit_state_t *_jit, jit_int32_t u, jit_int32_t v)
{
if (v < 4)
jit_new_node_ww(jit_code_getarg_f, u, _A0 - (v >> 1));
jit_new_node_ww(jit_code_getarg_f, u, _A0 - v);
else if (v < 8)
jit_movr_f(u, _F12 - ((v - 4) >> 1));
else
@ -406,7 +407,7 @@ void
_jit_getarg_d(jit_state_t *_jit, jit_int32_t u, jit_int32_t v)
{
if (v < 4)
jit_new_node_ww(jit_code_getarg_d, u, _A0 - (v >> 1));
jit_new_node_ww(jit_code_getarg_d, u, _A0 - v);
else if (v < 8)
jit_movr_d(u, _F12 - ((v - 4) >> 1));
else