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Re: wget2 | * configure.ac: Remove redundant sanitizer warnings (!506)


From: Avinash Sonawane (@rootkea)
Subject: Re: wget2 | * configure.ac: Remove redundant sanitizer warnings (!506)
Date: Fri, 22 Apr 2022 09:46:12 +0000



Avinash Sonawane started a new discussion on configure.ac: 
https://gitlab.com/gnuwget/wget2/-/merge_requests/506#note_920762798

>    # additional clang options, from OSS-Fuzz (20.12.2019)
> -  gl_WARN_ADD([-fsanitize=integer])
> -  gl_WARN_ADD([-fsanitize=array-bounds])
> -  gl_WARN_ADD([-fsanitize=builtin])
> -  gl_WARN_ADD([-fsanitize=float-divide-by-zero])
> -  gl_WARN_ADD([-fsanitize=function])
> -  gl_WARN_ADD([-fsanitize=integer-divide-by-zero])
> -  gl_WARN_ADD([-fsanitize=object-size])
> -  gl_WARN_ADD([-fsanitize=return])
> -  gl_WARN_ADD([-fsanitize=returns-nonnull-attribute])
> -  gl_WARN_ADD([-fsanitize=shift])
> -  gl_WARN_ADD([-fsanitize=signed-integer-overflow])
> -  gl_WARN_ADD([-fsanitize=unsigned-integer-overflow])
> -  gl_WARN_ADD([-fsanitize=unreachable])
> -  gl_WARN_ADD([-fsanitize=vla-bound])
> -  gl_WARN_ADD([-fsanitize=vptr])

`-fsanitize=undefined` enables all these sanitizer warnings.

Source: 
https://clang.llvm.org/docs/UndefinedBehaviorSanitizer.html#available-checks

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