https://gcc.gnu.org/bugzilla/show_bug.cgi?id=93421
--- Comment #11 from CVS Commits <cvs-commit at gcc dot gnu.org> --- The master branch has been updated by Jonathan Wakely <r...@gcc.gnu.org>: https://gcc.gnu.org/g:b108faa9400e13a3d00dd7f71cff0ac45e29c5c9 commit r11-5167-gb108faa9400e13a3d00dd7f71cff0ac45e29c5c9 Author: Jonathan Wakely <jwak...@redhat.com> Date: Thu Nov 19 13:33:11 2020 +0000 libstdc++: Fix overflow checks to use the correct "time_t" [PR 93456] I recently added overflow checks to src/c++11/futex.cc for PR 93456, but then changed the type of the timespec for PR 93421. This meant the overflow checks were no longer using the right range, because the variable being written to might be smaller than time_t. This introduces new typedef that corresponds to the tv_sec member of the struct being passed to the syscall, and uses that typedef in the range checks. libstdc++-v3/ChangeLog: PR libstdc++/93421 PR libstdc++/93456 * src/c++11/futex.cc (syscall_time_t): New typedef for the type of the syscall_timespec::tv_sec member. (relative_timespec, _M_futex_wait_until) (_M_futex_wait_until_steady): Use syscall_time_t in overflow checks, not time_t.
