Add new test case to check stack integrity on complex stack frames. - lightning.git - Portable just-in-time compiler library

Portable just-in-time compiler library

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author	pcpa <paulo.cesar.pereira.de.andrade@gmail.com>	2012年12月19日 18:07:12 -0200
committer	pcpa <paulo.cesar.pereira.de.andrade@gmail.com>	2012年12月19日 18:07:12 -0200
commit	a74318a1d715a7f9ce9c99ae81c3038645efcc10 (patch)
tree	5b13fe85aa14c298324b238c8e6140ee14f392b0 /lib/jit_mips-cpu.c
parent	b43ea1f908866baaf14586e6d048bff4dbf6db1f (diff)
download	lightning-a74318a1d715a7f9ce9c99ae81c3038645efcc10.tar.gz

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

* 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.

Diffstat (limited to 'lib/jit_mips-cpu.c')

-rw-r--r--

lib/jit_mips-cpu.c

1 files changed, 5 insertions, 0 deletions

diff --git a/lib/jit_mips-cpu.c b/lib/jit_mips-cpu.c
index 8749300..5e5c598 100644
--- a/lib/jit_mips-cpu.c
+++ b/lib/jit_mips-cpu.c

@@ -2697,6 +2697,11 @@ _calli(jit_state_t *_jit, jit_word_t i0)

static void

_prolog(jit_state_t *_jit, jit_node_t *node)

{

+ _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;

/* callee save registers */

subi(_SP_REGNO, _SP_REGNO, stack_framesize);

#if __WORDSIZE == 32

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