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Check if a fatal signal is from kernel #10438

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Merged
merged 1 commit into from
Apr 3, 2024
Merged

Check if a fatal signal is from kernel #10438

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7 changes: 5 additions & 2 deletions signal.c
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Original file line number Diff line number Diff line change
Expand Up @@ -867,16 +867,19 @@ check_stack_overflow(int sig, const void *addr)
}
}
# endif

# ifdef _WIN32
# define CHECK_STACK_OVERFLOW() check_stack_overflow(sig, 0)
# else
# define FAULT_ADDRESS info->si_addr
# ifdef USE_UCONTEXT_REG
# define CHECK_STACK_OVERFLOW() (info->si_pid ? (void)0 : check_stack_overflow(sig, (uintptr_t)FAULT_ADDRESS, ctx))
# define CHECK_STACK_OVERFLOW_() check_stack_overflow(sig, (uintptr_t)FAULT_ADDRESS, ctx)
# else
# define CHECK_STACK_OVERFLOW() (info->si_pid ? (void)0 : check_stack_overflow(sig, FAULT_ADDRESS))
# define CHECK_STACK_OVERFLOW_() check_stack_overflow(sig, FAULT_ADDRESS)
# endif
# define MESSAGE_FAULT_ADDRESS " at %p", FAULT_ADDRESS
# define SIGNAL_FROM_USER_P() ((info)->si_code == SI_USER)
# define CHECK_STACK_OVERFLOW() (SIGNAL_FROM_USER_P() ? (void)0 : CHECK_STACK_OVERFLOW_())
# endif
#else
# define CHECK_STACK_OVERFLOW() (void)0
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