Re: Does Gnulib replace exit(3) under any circumstances?

Simon Josefsson via Gnulib discussion list <[email protected]> Fri, 24 Jul 2026 11:06:17 +0200

Newsgroups	gmane.comp.lib.gnulib.bugs
Message-ID	<[email protected]>

Bruno Haible via Gnulib discussion list <[email protected]> writes:

> G. Branden Robinson wrote:
>> Unfortunately, making groff ASAN-quiet is not a scheduled goal.
>> ...
>> "I see lots of memory leaks.
>
> ASAN is useful also when you don't care about memory leaks.
> Just set
> export ASAN_OPTIONS="detect_leaks=0 abort_on_error=1
> allocator_may_return_null=1"

Thanks for reminding me!  I was just about giving up on using ASAN for
wdiff which have memory leaks that are less important to fix.

I think the recommended parameter separator is ':' not ' ' though?

> References:
> https://github.com/google/sanitizers/wiki/AddressSanitizer
> https://clang.llvm.org/docs/AddressSanitizer.html

There is also:

https://github.com/google/sanitizers/wiki/AddressSanitizerFlags

However I don't see 'allocator_may_return_null' in any of those pages.

What does it do?

/Simon

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