/* SPDX-License-Identifier: GPL-2.0-or-later */
/*
 * Copyright 2015, Cyril Bur, IBM Corp.
 */

#include "basic_asm.h"

/* long signal_self(pid_t pid, int sig); */
FUNC_START(signal_self)
        li      r0,37 /* sys_kill */
        /* r3 already has our pid in it */
        /* r4 already has signal type in it */
        sc
        bc      4,3,1f
        subfze  r3,r3
1:      blr
FUNC_END(signal_self)

/* long tm_signal_self(pid_t pid, int sig, int *ret); */
FUNC_START(tm_signal_self)
        PUSH_BASIC_STACK(8)
        std     r5,STACK_FRAME_PARAM(0)(sp) /* ret */
        tbegin.
        beq     1f
        tsuspend.
        li      r0,37 /* sys_kill */
        /* r3 already has our pid in it */
        /* r4 already has signal type in it */
        sc
        ld      r5,STACK_FRAME_PARAM(0)(sp) /* ret */
        bc      4,3,2f
        subfze  r3,r3
2:      std     r3,0(r5)
        tabort. 0
        tresume. /* Be nice to some cleanup, jumps back to tbegin then to 1: */
        /*
         * Transaction should be proper doomed and we should never get
         * here
         */
        li      r3,1
        POP_BASIC_STACK(8)
        blr
1:      li      r3,0
        POP_BASIC_STACK(8)
        blr
FUNC_END(tm_signal_self)