xref: /aosp_15_r20/external/musl/src/thread/or1k/clone.s (revision c9945492fdd68bbe62686c5b452b4dc1be3f8453)
1*c9945492SAndroid Build Coastguard Worker/* int clone(fn, stack, flags, arg, ptid, tls, ctid)
2*c9945492SAndroid Build Coastguard Worker *           r3  r4     r5     r6   sp+0  sp+4 sp+8
3*c9945492SAndroid Build Coastguard Worker * sys_clone(flags, stack, ptid, ctid, tls)
4*c9945492SAndroid Build Coastguard Worker */
5*c9945492SAndroid Build Coastguard Worker.global __clone
6*c9945492SAndroid Build Coastguard Worker.hidden __clone
7*c9945492SAndroid Build Coastguard Worker.type   __clone,@function
8*c9945492SAndroid Build Coastguard Worker__clone:
9*c9945492SAndroid Build Coastguard Worker	l.addi	r4, r4, -8
10*c9945492SAndroid Build Coastguard Worker	l.sw	0(r4), r3
11*c9945492SAndroid Build Coastguard Worker	l.sw	4(r4), r6
12*c9945492SAndroid Build Coastguard Worker	/* (fn, st, fl, ar, pt, tl, ct) => (fl, st, pt, ct, tl) */
13*c9945492SAndroid Build Coastguard Worker	l.ori	r3, r5, 0
14*c9945492SAndroid Build Coastguard Worker	l.lwz	r5, 0(r1)
15*c9945492SAndroid Build Coastguard Worker	l.lwz	r6, 8(r1)
16*c9945492SAndroid Build Coastguard Worker	l.lwz	r7, 4(r1)
17*c9945492SAndroid Build Coastguard Worker	l.ori	r11, r0, 220 /* __NR_clone */
18*c9945492SAndroid Build Coastguard Worker	l.sys	1
19*c9945492SAndroid Build Coastguard Worker
20*c9945492SAndroid Build Coastguard Worker	l.sfeqi	r11, 0
21*c9945492SAndroid Build Coastguard Worker	l.bf	1f
22*c9945492SAndroid Build Coastguard Worker	 l.nop
23*c9945492SAndroid Build Coastguard Worker	l.jr	r9
24*c9945492SAndroid Build Coastguard Worker	 l.nop
25*c9945492SAndroid Build Coastguard Worker
26*c9945492SAndroid Build Coastguard Worker1:	l.lwz	r11, 0(r1)
27*c9945492SAndroid Build Coastguard Worker	l.jalr	r11
28*c9945492SAndroid Build Coastguard Worker	 l.lwz	r3, 4(r1)
29*c9945492SAndroid Build Coastguard Worker
30*c9945492SAndroid Build Coastguard Worker	l.ori	r11, r0, 93 /* __NR_exit */
31*c9945492SAndroid Build Coastguard Worker	l.sys	1
32