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[BUG]: _Noreturn cancels printf
See original GitHub issueDescribe the bug
_Noreturn cancels printf.
Steps to reproduce
https://godbolt.org/z/efvMcnKeq
Expected behavior
Expected output:
xxx
zzz
Actual output:
<nothing>
Reproduction link
https://godbolt.org/z/efvMcnKeq
Screenshots
Not applicable
Operating System
No response
Browser version
No response
Issue Analytics
- State:
- Created a year ago
- Comments:8 (5 by maintainers)
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It’s undefined to return from a
_Noreturnfunction, I’d say the expected behavior is anything from xxx zzz to summoning the Kraken 😛That being said the reason nothing happens to show up here is that stdout’s buffer isn’t flushed before the program segfaults. If you add
setvbuf(stdout, NULL, _IONBF, 0);to main the output is:For glibc at least no flushing is performed https://code.woboq.org/userspace/glibc/stdlib/abort.c.html#abort