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intercept: Abort via the equivalent of raise(SIGABRT) #93
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If we're crashing, raise(SIGABRT) is more debugging-friendly than _exit(1) - that way we'll leave a core dump behind. Signed-off-by: Simon McVittie <smcv@collabora.com>
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Hmm, this makes the tests fail, because some of the tests expect it to be possible to fail to patch a function. Sorry, I'm not sure I understand how those tests ever passed - wouldn't they kill the host process with |
GBuella
reviewed
Jul 12, 2019
| /* abort(), but without using glibc */ | ||
| tid = syscall_no_intercept(SYS_gettid); | ||
| pid = syscall_no_intercept(SYS_getpid); | ||
| syscall(SYS_tgkill, pid, tid, SIGABRT); |
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So, why is it syscall here, and why not syscall_no_intercept?
Your comment says "without glibc", but syscall is a function in libc, which is going to be intercepted actually...
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If we're crashing, raise(SIGABRT) is more debugging-friendly than _exit(1) - that way we'll leave a core dump behind.
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