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Posted to commits@nuttx.apache.org by GitBox <gi...@apache.org> on 2022/10/26 14:27:33 UTC
[GitHub] [incubator-nuttx] xiaoxiang781216 commented on a diff in pull request #7436: arm: Added breakpoint in stack overflow trap.
xiaoxiang781216 commented on code in PR #7436:
URL: https://github.com/apache/incubator-nuttx/pull/7436#discussion_r1005757597
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arch/arm/src/armv8-m/arm_stackcheck.c:
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@@ -69,6 +69,12 @@ void __stack_overflow_trap(void)
uint32_t regval;
+ regval = getreg32(NVIC_DHCSR);
+ if (regval & 0x01)
Review Comment:
why need check NVIC_DHCSR
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arch/arm/src/armv7-m/arm_stackcheck.c:
##########
@@ -69,6 +69,12 @@ void __stack_overflow_trap(void)
uint32_t regval;
+ regval = getreg32(NVIC_DHCSR);
+ if (regval & 0x01)
Review Comment:
why check NVIC_DHCSR
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