47 lines
973 B
ArmAsm
47 lines
973 B
ArmAsm
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/* SPDX-License-Identifier: GPL-2.0-or-later */
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/*
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* Copyright 2015, Cyril Bur, IBM Corp.
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*/
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#include "basic_asm.h"
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/* long signal_self(pid_t pid, int sig); */
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FUNC_START(signal_self)
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li r0,37 /* sys_kill */
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/* r3 already has our pid in it */
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/* r4 already has signal type in it */
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sc
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bc 4,3,1f
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subfze r3,r3
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1: blr
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FUNC_END(signal_self)
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/* long tm_signal_self(pid_t pid, int sig, int *ret); */
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FUNC_START(tm_signal_self)
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PUSH_BASIC_STACK(8)
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std r5,STACK_FRAME_PARAM(0)(sp) /* ret */
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tbegin.
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beq 1f
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tsuspend.
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li r0,37 /* sys_kill */
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/* r3 already has our pid in it */
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/* r4 already has signal type in it */
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sc
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ld r5,STACK_FRAME_PARAM(0)(sp) /* ret */
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bc 4,3,2f
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subfze r3,r3
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2: std r3,0(r5)
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tabort. 0
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tresume. /* Be nice to some cleanup, jumps back to tbegin then to 1: */
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/*
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* Transaction should be proper doomed and we should never get
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* here
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*/
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li r3,1
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POP_BASIC_STACK(8)
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blr
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1: li r3,0
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POP_BASIC_STACK(8)
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blr
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FUNC_END(tm_signal_self)
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