LXR linux/tools/testing/selftests/powerpc/signal/signal.S

   1/* SPDX-License-Identifier: GPL-2.0-or-later */
   2/*
   3 * Copyright 2015, Cyril Bur, IBM Corp.
   4 */
   5
   6#include "basic_asm.h"
   7
   8/* long signal_self(pid_t pid, int sig); */
   9FUNC_START(signal_self)
  10        li      r0,37 /* sys_kill */
  11        /* r3 already has our pid in it */
  12        /* r4 already has signal type in it */
  13        sc
  14        bc      4,3,1f
  15        subfze  r3,r3
  161:      blr
  17FUNC_END(signal_self)
  18
  19/* long tm_signal_self(pid_t pid, int sig, int *ret); */
  20FUNC_START(tm_signal_self)
  21        PUSH_BASIC_STACK(8)
  22        std     r5,STACK_FRAME_PARAM(0)(sp) /* ret */
  23        tbegin.
  24        beq     1f
  25        tsuspend.
  26        li      r0,37 /* sys_kill */
  27        /* r3 already has our pid in it */
  28        /* r4 already has signal type in it */
  29        sc
  30        ld      r5,STACK_FRAME_PARAM(0)(sp) /* ret */
  31        bc      4,3,2f
  32        subfze  r3,r3
  332:      std     r3,0(r5)
  34        tabort. 0
  35        tresume. /* Be nice to some cleanup, jumps back to tbegin then to 1: */
  36        /*
  37         * Transaction should be proper doomed and we should never get
  38         * here
  39         */
  40        li      r3,1
  41        POP_BASIC_STACK(8)
  42        blr
  431:      li      r3,0
  44        POP_BASIC_STACK(8)
  45        blr
  46FUNC_END(tm_signal_self)
  47