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- ;
- ; Port of uClibc for TMS320C6000 DSP architecture
- ; Copyright (C) 2004 Texas Instruments Incorporated
- ; Author of TMS320C6000 port: Aurelien Jacquiot
- ;
- ; This program is free software; you can redistribute it and/or modify it
- ; under the terms of the GNU Library General Public License as published by
- ; the Free Software Foundation; either version 2 of the License, or (at your
- ; option) any later version.
- ;
- ; This program is distributed in the hope that it will be useful, but WITHOUT
- ; ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- ; FITNESS FOR A PARTICULAR PURPOSE. See the GNU Library General Public License
- ; for more details.
- ;
- ; You should have received a copy of the GNU Library General Public License
- ; along with this program; if not, write to the Free Software Foundation,
- ; Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- ;
- ; .import __errno_location
- .global __vfork
- __vfork:
- MVK .S2 190,B0 ; __NR_vfork
- #ifndef _TMS320C6400_PLUS
- MVC .S2 CSR,B2
- CLR .S2 B2,0,0,B1
- MVC .S2 B1,CSR
- MVC .S2 IFR,B1
- SET .S2 B1,6,6,B1
- MVC .S2 B1,ISR
- MVC .S2 B2,CSR
- NOP
- #else
- SWE
- #endif
- MVK .S2 -4096,B4
- CMPGTU .L2X B4,A4,B2 ; check error
- [B2] BNOP .S2 B3,5
- NEG .S1 A4,A4
- STW .D2T1 A4,*B15--[2]
- STW .D2T2 B3,*+B15[1]
- CALLP .S2 __errno_location,B3
- LDW .D2T2 *+B15[1],B3
- LDW .D2T1 *++B15[2],A5
- NOP 3
- BNOP .S2 B3,3
- STW .D1T1 A5,*A4
- MVK .L1 -1,A4
- weak_alias(__vfork,vfork)
- libc_hidden_weak(vfork)
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