131 lines
3.1 KiB
ArmAsm
131 lines
3.1 KiB
ArmAsm
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/*
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* Loongarch64 linux replacement vdso.
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*
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* Copyright 2023 Linaro, Ltd.
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*
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* SPDX-License-Identifier: GPL-2.0-or-later
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*/
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#include <asm/unistd.h>
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#include <asm/errno.h>
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#include "vdso-asmoffset.h"
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.text
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.macro endf name
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.globl \name
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.type \name, @function
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.size \name, . - \name
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.endm
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.macro vdso_syscall name, nr
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\name:
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li.w $a7, \nr
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syscall 0
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jr $ra
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endf \name
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.endm
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.cfi_startproc
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vdso_syscall __vdso_gettimeofday, __NR_gettimeofday
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vdso_syscall __vdso_clock_gettime, __NR_clock_gettime
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vdso_syscall __vdso_clock_getres, __NR_clock_getres
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vdso_syscall __vdso_getcpu, __NR_getcpu
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.cfi_endproc
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/*
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* Start the unwind info at least one instruction before the signal
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* trampoline, because the unwinder will assume we are returning
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* after a call site.
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*/
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.cfi_startproc simple
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.cfi_signal_frame
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#define B_GR offsetof_sigcontext_gr
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#define B_FR sizeof_sigcontext + sizeof_sctx_info + offsetof_fpucontext_fr
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.cfi_def_cfa 2, offsetof_sigcontext
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/* Return address */
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.cfi_return_column 64
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.cfi_offset 64, offsetof_sigcontext_pc /* pc */
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/* Integer registers */
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.cfi_offset 1, B_GR + 1 * 8
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.cfi_offset 2, B_GR + 2 * 8
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.cfi_offset 3, B_GR + 3 * 8
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.cfi_offset 4, B_GR + 4 * 8
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.cfi_offset 5, B_GR + 5 * 8
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.cfi_offset 6, B_GR + 6 * 8
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.cfi_offset 7, B_GR + 7 * 8
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.cfi_offset 8, B_GR + 8 * 8
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.cfi_offset 9, B_GR + 9 * 8
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.cfi_offset 10, B_GR + 10 * 8
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.cfi_offset 11, B_GR + 11 * 8
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.cfi_offset 12, B_GR + 12 * 8
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.cfi_offset 13, B_GR + 13 * 8
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.cfi_offset 14, B_GR + 14 * 8
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.cfi_offset 15, B_GR + 15 * 8
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.cfi_offset 16, B_GR + 16 * 8
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.cfi_offset 17, B_GR + 17 * 8
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.cfi_offset 18, B_GR + 18 * 8
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.cfi_offset 19, B_GR + 19 * 8
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.cfi_offset 20, B_GR + 20 * 8
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.cfi_offset 21, B_GR + 21 * 8
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.cfi_offset 22, B_GR + 22 * 8
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.cfi_offset 23, B_GR + 23 * 8
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.cfi_offset 24, B_GR + 24 * 8
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.cfi_offset 25, B_GR + 25 * 8
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.cfi_offset 26, B_GR + 26 * 8
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.cfi_offset 27, B_GR + 27 * 8
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.cfi_offset 28, B_GR + 28 * 8
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.cfi_offset 29, B_GR + 29 * 8
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.cfi_offset 30, B_GR + 30 * 8
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.cfi_offset 31, B_GR + 31 * 8
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/* Floating point registers */
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.cfi_offset 32, B_FR + 0
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.cfi_offset 33, B_FR + 1 * 8
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.cfi_offset 34, B_FR + 2 * 8
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.cfi_offset 35, B_FR + 3 * 8
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.cfi_offset 36, B_FR + 4 * 8
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.cfi_offset 37, B_FR + 5 * 8
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.cfi_offset 38, B_FR + 6 * 8
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.cfi_offset 39, B_FR + 7 * 8
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.cfi_offset 40, B_FR + 8 * 8
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.cfi_offset 41, B_FR + 9 * 8
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.cfi_offset 42, B_FR + 10 * 8
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.cfi_offset 43, B_FR + 11 * 8
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.cfi_offset 44, B_FR + 12 * 8
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.cfi_offset 45, B_FR + 13 * 8
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.cfi_offset 46, B_FR + 14 * 8
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.cfi_offset 47, B_FR + 15 * 8
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.cfi_offset 48, B_FR + 16 * 8
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.cfi_offset 49, B_FR + 17 * 8
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.cfi_offset 50, B_FR + 18 * 8
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.cfi_offset 51, B_FR + 19 * 8
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.cfi_offset 52, B_FR + 20 * 8
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.cfi_offset 53, B_FR + 21 * 8
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.cfi_offset 54, B_FR + 22 * 8
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.cfi_offset 55, B_FR + 23 * 8
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.cfi_offset 56, B_FR + 24 * 8
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.cfi_offset 57, B_FR + 25 * 8
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.cfi_offset 58, B_FR + 26 * 8
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.cfi_offset 59, B_FR + 27 * 8
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.cfi_offset 60, B_FR + 28 * 8
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.cfi_offset 61, B_FR + 29 * 8
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.cfi_offset 62, B_FR + 30 * 8
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.cfi_offset 63, B_FR + 31 * 8
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nop
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__vdso_rt_sigreturn:
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li.w $a7, __NR_rt_sigreturn
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syscall 0
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.cfi_endproc
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endf __vdso_rt_sigreturn
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