fusl/src/thread/or1k/clone.s - Issue 1573973002: Add a "fork" of musl as //fusl.

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Side by Side Diff: fusl/src/thread/or1k/clone.s

Issue 1573973002: Add a "fork" of musl as //fusl. (Closed) Base URL: https://github.com/domokit/mojo.git@master

Patch Set: Created 4 years, 11 months ago

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	1 /* int clone(fn, stack, flags, arg, ptid, tls, ctid)

	2 * r3 r4 r5 r6 sp+0 sp+4 sp+8

	3 * sys_clone(flags, stack, ptid, ctid, tls)

	4 */

	5 .global __clone

	6 .type __clone,@function

	7 __clone:

	8 l.addi r4, r4, -8

	9 l.sw 0(r4), r3

	10 l.sw 4(r4), r6

	11 /* (fn, st, fl, ar, pt, tl, ct) => (fl, st, pt, ct, tl) */

	12 l.ori r3, r5, 0

	13 l.lwz r5, 0(r1)

	14 l.lwz r6, 8(r1)

	15 l.lwz r7, 4(r1)

	16 l.ori r11, r0, 220 /* __NR_clone */

	17 l.sys 1

	18

	19 l.sfeqi r11, 0

	20 l.bf 1f

	21 l.nop

	22 l.jr r9

	23 l.nop

	24

	25 1: l.lwz r11, 0(r1)

	26 l.jalr r11

	27 l.lwz r3, 4(r1)

	28

	29 l.ori r11, r0, 93 /* __NR_exit */

	30 l.sys 1

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