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| author | Adhemerval Zanella <adhemerval.zanella@linaro.org> | 2023-04-03 11:25:06 -0300 |
|---|---|---|
| committer | Adhemerval Zanella <adhemerval.zanella@linaro.org> | 2023-04-10 15:42:51 -0300 |
| commit | c262078dd270a21183ea473d26e30516df3f84fa (patch) | |
| tree | c463fa5e9aebec13c4ab81ad33d3889353802e8e | |
| parent | e0f98145bb5180978681031d979245985436a652 (diff) | |
| download | glibc-c262078dd270a21183ea473d26e30516df3f84fa.tar.gz | |
microblaze: Fix Race conditions in pthread cancellation [BZ#12683]
By adding the required syscall_cancel.S.
Checked against a build and make check run-built-tests=no for
microblaze-linux-gnu.
| -rw-r--r-- | sysdeps/unix/sysv/linux/microblaze/syscall_cancel.S | 61 |
1 files changed, 61 insertions, 0 deletions
diff --git a/sysdeps/unix/sysv/linux/microblaze/syscall_cancel.S b/sysdeps/unix/sysv/linux/microblaze/syscall_cancel.S new file mode 100644 index 0000000000..1f9d202bf5 --- /dev/null +++ b/sysdeps/unix/sysv/linux/microblaze/syscall_cancel.S @@ -0,0 +1,61 @@ +/* Cancellable syscall wrapper. Linux/microblaze version. + Copyright (C) 2023 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, see + <http://www.gnu.org/licenses/>. */ + +#include <sysdep.h> +#include <descr-const.h> + +/* long int __syscall_cancel_arch (int *cancelhandling, + long int nr, + long int arg1, + long int arg2, + long int arg3, + long int arg4, + long int arg5, + long int arg6) */ + +ENTRY (__syscall_cancel_arch) + + .globl __syscall_cancel_arch_start +__syscall_cancel_arch_start: + + lwi r3,r5,0 + andi r3,r3,TCB_CANCELED_BITMASK + bneid r3,1f + addk r12,r6,r0 + + addk r5,r7,r0 + addk r6,r8,r0 + addk r7,r9,r0 + addk r8,r10,r0 + lwi r9,r1,56 + lwi r10,r1,60 + brki r14,8 + + .globl __syscall_cancel_arch_end +__syscall_cancel_arch_end: + + nop + lwi r15,r1,0 + rtsd r15,8 + addik r1,r1,28 + +1: + brlid r15, __syscall_do_cancel + nop + +END (__syscall_cancel_arch) |