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new 0ba891c1b0 armv7-a: smp: fix stack coloration
0ba891c1b0 is described below
commit 0ba891c1b044d74656a6aa5a7d57e82a92bd2725
Author: Oki Minabe <[email protected]>
AuthorDate: Tue May 3 17:29:50 2022 +0900
armv7-a: smp: fix stack coloration
Summary:
- The stack pointer is subtracted to alloc xcptcontext area
in the __cpu?_start block
- Fix the stack coloration overrun to the previous cpu's xcpt area
Impact:
- armv7-a's smp configuration
Testing:
- smp and ostest on sabre-6quad:smp w/ qemu
Signed-off-by: Oki Minabe <[email protected]>
---
arch/arm/src/armv7-a/arm_cpuhead.S | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/arm/src/armv7-a/arm_cpuhead.S
b/arch/arm/src/armv7-a/arm_cpuhead.S
index 58e7224765..9d71005a76 100644
--- a/arch/arm/src/armv7-a/arm_cpuhead.S
+++ b/arch/arm/src/armv7-a/arm_cpuhead.S
@@ -441,7 +441,7 @@ __cpu3_start:
#ifdef CONFIG_STACK_COLORATION
.type .Lstkinit, %object
.Lstkinit:
- .long SMP_STACK_WORDS
+ .long SMP_STACK_WORDS - (XCPTCONTEXT_SIZE / 4)
.long STACK_COLOR /* Stack coloration
word */
.size .Lstkinit, . -.Lstkinit
#endif
