1 Apr
2016
1 Apr
'16
5:06 p.m.
Hi Waldemar,
On Thu, Mar 31, 2016 at 8:44 PM, Waldemar Brodkorb wbx@uclibc-ng.org wrote:
Register window saving loop in __sigsetjmp incorrectly calculates offset in the jmp_buf in case it was called with call12. The bug was introduced in commit f4b1b7ade7971141 "xtensa: fix setjmp that didn't save all registers correctly".
Thanks, applied and pushed. How did you found it? No included testcase catched it, right?
Right. I was doing musl port https://github.com/jcmvbkbc/musl-xtensa/commits/xtensa-1.1.14 and looked very closely at the code I used as a reference. I'm pretty sure that nobody ever called or will ever call __sigsetjmp with call12 though.
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Thanks.
-- Max