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c284fd5eaf
The __syscall_cancel_arch function has an epilogue that does not match the prologue. The stack is not used and the return address still lies in r15 when reaching the epilogue. Fix the epilogue by simply returning from the function. Signed-off-by: Luc Michel <luc.michel@amd.com> Tested-by: gopi@sankhya.com Reviewed-by: Neal Frager <neal.frager@amd.com> Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
61 lines
1.5 KiB
ArmAsm
61 lines
1.5 KiB
ArmAsm
/* Cancellable syscall wrapper. Linux/microblaze version.
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Copyright (C) 2023-2025 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<http://www.gnu.org/licenses/>. */
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#include <sysdep.h>
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#include <descr-const.h>
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/* long int __syscall_cancel_arch (int *cancelhandling,
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long int nr,
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long int arg1,
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long int arg2,
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long int arg3,
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long int arg4,
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long int arg5,
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long int arg6) */
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ENTRY (__syscall_cancel_arch)
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.globl __syscall_cancel_arch_start
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__syscall_cancel_arch_start:
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lwi r3,r5,0
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andi r3,r3,TCB_CANCELED_BITMASK
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bneid r3,1f
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addk r12,r6,r0
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addk r5,r7,r0
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addk r6,r8,r0
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addk r7,r9,r0
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addk r8,r10,r0
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lwi r9,r1,56
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lwi r10,r1,60
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brki r14,8
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.globl __syscall_cancel_arch_end
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__syscall_cancel_arch_end:
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nop
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rtsd r15,8
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nop
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1:
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brlid r15, __syscall_do_cancel
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nop
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END (__syscall_cancel_arch)
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