On 10/13/21 00:36, Martin Sebor wrote:
On 10/12/21 12:33 PM, Siddhesh Poyarekar wrote:
The warning is falsely triggered for THREAD_SELF in glibc when
accessing TCB through the segment register.
Thanks for looking into it! The Glibc warning is being tracked
in PR 102630. The root cause behind it is in compute_objsize_r
in pointer-query.cc (which is used by -Warray-bounds as well as
other warnings). I just posted a patch for it the other day;
it's waiting for approval (though as Joseph noted, I need to
adjust the test and either make it target-independent or move
it under i386).
Ahh, targetm.addr_space.zero_address_valid was what I was looking for
and didn't find. Your fix looks good to me module moving the test out
into gcc.target/i386.
Thanks,
Siddhesh
