rework arm atomic/tp backends to be thumb-compatible and fdpic-ready

[musl.git] / src / thread / arm / clone.s

.syntax unified
.text
.global __clone
.type   __clone,%function
__clone:
        stmfd sp!,{r4,r5,r6,r7}
        mov r7,#120
        mov r6,r3
        mov r5,r0
        mov r0,r2
        and r1,r1,#-16
        ldr r2,[sp,#16]
        ldr r3,[sp,#20]
        ldr r4,[sp,#24]
        svc 0
        tst r0,r0
        beq 1f
        ldmfd sp!,{r4,r5,r6,r7}
        bx lr

1:      mov r0,r6
        tst r5,#1
        bne 1f
        mov lr,pc
        mov pc,r5
2:      mov r7,#1
        svc 0

1:      mov lr,pc
        bx r5
        b 2b