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Polyfill SA_RESETHAND on MacOS ARM64

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This change solves the XNU crash loop mystery. Apple's documentation
claims to support this feature, but they only define the constant in
their header files. The kernel acknowledges thi SA_RESETHAND bit, by
clearing it from the sa_flags state, returns zero, and does nothing.
This commit is contained in:
Justine Tunney 2024-05-08 03:47:43 -07:00
parent 952b9009e8
commit 793393a341
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GPG key ID: BE714B4575D6E328
3 changed files with 23 additions and 2 deletions
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2
libc/log/oncrash_arm64.c
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@ -394,8 +394,6 @@ relegated void __oncrash(int sig, struct siginfo *si, void *arg) {
BLOCK_CANCELATION;
SpinLock(&lock);
__oncrash_impl(sig, si, arg);
if (sig != SIGQUIT && sig != SIGTRAP)
_exit(1);
SpinUnlock(&lock);
ALLOW_CANCELATION;
}