root/arch/arm64/kernel/vdso/sigreturn.S

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   1 /* SPDX-License-Identifier: GPL-2.0-only */
   2 /*
   3  * Sigreturn trampoline for returning from a signal when the SA_RESTORER
   4  * flag is not set.
   5  *
   6  * Copyright (C) 2012 ARM Limited
   7  *
   8  * Author: Will Deacon <will.deacon@arm.com>
   9  */
  10 
  11 #include <linux/linkage.h>
  12 #include <asm/unistd.h>
  13 
  14         .text
  15 
  16         nop
  17 ENTRY(__kernel_rt_sigreturn)
  18         .cfi_startproc
  19         .cfi_signal_frame
  20         .cfi_def_cfa    x29, 0
  21         .cfi_offset     x29, 0 * 8
  22         .cfi_offset     x30, 1 * 8
  23         mov     x8, #__NR_rt_sigreturn
  24         svc     #0
  25         .cfi_endproc
  26 ENDPROC(__kernel_rt_sigreturn)
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