GCC address sanitizer - supported architecture

[Jonathan Wakely]

On Thu, 24 Dec 2020, 12:06 Kewen.Lin, <linkw@linux.ibm.com> wrote:

> > on 2020/12/24 下午6:10, Jonathan Wakely wrote:
> > On Thu, 24 Dec 2020, 08:50 Kewen.Lin via Gcc-help, <gcc-help@gcc.gnu.org
> <mailto:gcc-help@gcc.gnu.org>> wrote:
> >
> >     Hi Qingnan,
> >
> >     on 2020/12/24 上午11:23, Qingnan Duan via Gcc-help wrote:
> >     > Hi everyone,
> >     > I was looking at this page Instrumentation Options (Using the GNU
> Compiler Collection (GCC))<
> https://gcc.gnu.org/onlinedocs/gcc/Instrumentation-Options.html <
> https://gcc.gnu.org/onlinedocs/gcc/Instrumentation-Options.html>> and it
> says "-fsanitize=address" is only supported on AArch64. However, I was able
> to compile my code on x86-64 CPU with -fsanitize=address flag.
> >     >
> >
> >     I think the part "Note that the only target this option is currently
> supported on is AArch64. "
> >     is specific for option “-fsanitize=hwaddress” not for option
> "-fsanitize=address".
> >
> >     Only aarch64 port re-defines TARGET_MEMTAG_CAN_TAG_ADDRESSES which
> is used for -fsanitize=hwaddress,
> >     that matches the wordings.
> >
> >     By the way, I also felt a bit confused without digging, not sure
> whether it's confusing from
> >     native speaker's perspective.  If yes, maybe it's worth to revise it
> somehow.  :)
> >
> >
> > Yes, the documentation should be fixed. As currently written it's
> incorrect.
> >
> > Could you please file a bug?
> >
>
> Hi Jonathan,
>
> Thanks for confirming this.  PR98437 was opened as you suggested.
>

Great, thanks.



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