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| author | Haavard Skinnemoen <haavard.skinnemoen@atmel.com> | 2008-05-19 11:27:37 +0200 |
|---|---|---|
| committer | Haavard Skinnemoen <haavard.skinnemoen@atmel.com> | 2008-05-27 15:27:30 +0200 |
| commit | 95107b7c028806919630bf02c653aa8f4f867c94 (patch) | |
| tree | 07db1bbb08680ce198b3e41b6c2cf3d6163aedf7 | |
| parent | caf83ea888a0220f41747d0b7748fa43b4a4bd49 (diff) | |
| download | u-boot-imx-95107b7c028806919630bf02c653aa8f4f867c94.zip u-boot-imx-95107b7c028806919630bf02c653aa8f4f867c94.tar.gz u-boot-imx-95107b7c028806919630bf02c653aa8f4f867c94.tar.bz2 | |
avr32: Do stricter stack checking in the exception handler
Don't do a stack dump if the stack pointer is outside the memory area
reserved for stack.
Signed-off-by: Haavard Skinnemoen <haavard.skinnemoen@atmel.com>
| -rw-r--r-- | cpu/at32ap/exception.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/cpu/at32ap/exception.c b/cpu/at32ap/exception.c index 0672685..dc9c300 100644 --- a/cpu/at32ap/exception.c +++ b/cpu/at32ap/exception.c @@ -111,7 +111,8 @@ void do_unknown_exception(unsigned int ecr, struct pt_regs *regs) printf("CPU Mode: %s\n", cpu_modes[mode]); /* Avoid exception loops */ - if (regs->sp < CFG_SDRAM_BASE || regs->sp >= gd->stack_end) + if (regs->sp < (gd->stack_end - CONFIG_STACKSIZE) + || regs->sp >= gd->stack_end) printf("\nStack pointer seems bogus, won't do stack dump\n"); else dump_mem("\nStack: ", regs->sp, gd->stack_end); |