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68 lines
1.7 KiB
ArmAsm
68 lines
1.7 KiB
ArmAsm
/* Cancellable syscall wrapper. Linux/riscv 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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__syscall_arg_t nr,
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__syscall_arg_t arg1,
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__syscall_arg_t arg2,
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__syscall_arg_t arg3,
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__syscall_arg_t arg4,
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__syscall_arg_t arg5,
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__syscall_arg_t arg6) */
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#ifdef SHARED
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.option pic
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#else
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.option nopic
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#endif
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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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lw t1, 0(a0)
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/* if (*ch & CANCELED_BITMASK) */
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andi t1, t1, TCB_CANCELED_BITMASK
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bne t1, zero, 1f
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mv t3, a1
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mv a0, a2
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mv a1, a3
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mv a2, a4
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mv a3, a5
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mv a4, a6
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mv a5, a7
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mv a7, t3
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scall
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.globl __syscall_cancel_arch_end
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__syscall_cancel_arch_end:
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ret
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1:
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addi sp, sp, -16
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cfi_def_cfa_offset (16)
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REG_S ra, (16-SZREG)(sp)
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cfi_offset (ra, -SZREG)
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call __syscall_do_cancel
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END (__syscall_cancel_arch)
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