Package: src:glibc Version: 2.28-10 gnulib has added emilation for lchmod/fchmodat. Since this is a run-time test, binaries built against glibc with these patches will not work correctly on older glibc version. (glibc upstream did not want symbol version markup for this change.)
The backport consists of these patches: commit 173ec37bb2af6e30892a141d74d42db5957ddd36 Author: Florian Weimer <[email protected]> Date: Sun Feb 9 11:50:44 2020 +0100 support: Add the xlstat function commit f6233ab412c3bebebacf65745e775e01506dd58d Author: Florian Weimer <[email protected]> Date: Sun Feb 9 11:51:08 2020 +0100 Linux: Add io/tst-o_path-locks test The O_PATH-based fchmodat emulation will rely on the fact that closing an O_PATH descriptor never releases POSIX advisory locks, so this commit adds a test case for this behavior. commit 6b89c385d8bd0700b25bac2c2d0bebe68d5cc05d Author: Florian Weimer <[email protected]> Date: Wed Jan 22 18:56:04 2020 +0100 io: Implement lchmod using fchmodat [BZ #14578] commit 752dd17443e55a4535cb9e6baa4e550ede383540 Author: Florian Weimer <[email protected]> Date: Wed Jan 22 19:01:20 2020 +0100 Linux: Emulate fchmodat with AT_SYMLINK_NOFOLLOW using O_PATH [BZ #14578] /proc/self/fd files are special and chmod on O_PATH descriptors in that directory operates on the symbolic link itself (like lchmod). commit 47136d6cc38c425b150dda83989303ac55f6443c Author: Florian Weimer <[email protected]> Date: Tue Feb 11 16:22:19 2020 +0100 io: Add io/tst-lchmod covering lchmod and fchmodat
