Aren
/
NetBSD
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Duh, call the clone's entry point w/ jal, so that when it returns, 

it returns to the correct $ra (not the parent's!!).
This commit is contained in:
thorpej 2001-07-20 17:37:39 +00:00
parent 5aaa13337c
commit bcd75f16cb
1 changed files with 16 additions and 11 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

27
lib/libc/arch/mips/sys/__clone.S
View File

@ -1,4 +1,4 @@
/* $NetBSD: __clone.S,v 1.2 2001/07/17 02:05:32 thorpej Exp $ */
/* $NetBSD: __clone.S,v 1.3 2001/07/20 17:37:39 thorpej Exp $ */
/*-
* Copyright (c) 2001 The NetBSD Foundation, Inc.
@ -71,28 +71,33 @@ LEAF(__clone)
*/
move a0, a2
SYSTRAP(__clone)
bne a3, zero, 9f
bne a3, zero, 8f
beq v1, zero, 8f # v1 (rv[1]) == 0, parent, child pid in v0
bne v1, zero, 9f # v1 (rv[1]) == 0, parent, child pid in v0
/*
* Fetch the function and argument from the new stack, and
* pop it back.
j ra # parent return
8: PIC_CALL(__cerror, t9)
/* NOTREACHED */
9: /*
* Child: Fetch the function and argument from the new stack,
* and pop it back.
*/
REG_L t9, 0(sp)
REG_L a0, SZREG(sp)
addu sp, sp, (2 * SZREG)
#ifdef ABICALLS
.cprestore
#endif
/* Call the clone's entry point. */
jr t9
jal t9
/* Pass the return value to _exit(). */
move a0, v0
PIC_CALL(_exit, t9)
/* NOTREACHED */
8: j ra
9: PIC_CALL(__cerror, t9)
END(__clone)