Re: [patch gcc13] middle-end/70090: Dynamic sizes for -fsanitize=object-size

[Siddhesh Poyarekar]

On 07/02/2022 17:37, Jakub Jelinek wrote:

On Mon, Feb 07, 2022 at 05:31:58PM +0530, Siddhesh Poyarekar wrote:

Use __builtin_dynamic_object_size to get object sizes for ubsan.

gcc/ChangeLog:

        middle-end/70090
        * ubsan.cc (ubsan_expand_objsize_ifn): Allow non-constant SIZE.
        (instrument_object_size): Get dynamic object size expression.

gcc/testsuite/ChangeLog:

        middle-end/70090
        * gcc.dg/ubsan/object-size-dyn.c: New test.

Signed-off-by: Siddhesh Poyarekar <siddh...@gotplt.org>
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Proposing for gcc13 since I reckoned this is not feasible for stage 4.

Ok for stage1.

        Jakub

Hi Jakub, may I rebase and push this now?

Thanks,
Siddhesh