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- /* Startup code for programs linked with GNU libc.
- Copyright (C) 1998, 1999, 2000, 2001 Free Software Foundation, Inc.
- This file is part of the GNU C Library.
- The GNU C Library is free software; you can redistribute it and/or
- modify it under the terms of the GNU Lesser General Public
- License as published by the Free Software Foundation; either
- version 2.1 of the License, or (at your option) any later version.
- The GNU C Library 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
- Lesser General Public License for more details.
- You should have received a copy of the GNU Lesser General Public
- License along with the GNU C Library; if not, write to the Free
- Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
- 02111-1307 USA. */
- .section ".text"
- .globl _start
- _start:
- mr 26,1
- /* Set up an initial stack frame, and clear the LR. */
- clrrwi 1,1,4
- li 0,0
- stwu 1,-16(1)
- mtlr 0
- stw 0,0(1)
- lwz 3,0(26) /* get argc */
- lis 11,U_SYSTEM_ARGC@ha
- stw 3,U_SYSTEM_ARGC@l(11);
-
- addi 4,26,4 /* get argv */
- lis 11,U_SYSTEM_ARGV@ha
- stw 4,U_SYSTEM_ARGV@l(11);
-
- addi 27,3,1 /* calculate argc + 1 into r27 */
- slwi 27,27,2 /* calculate (argc + 1) * sizeof(char *) into r27 */
- add 5,4,27 /* get address of env[0] */
- lis 11,U_SYSTEM_ENVP@ha
- stw 5,U_SYSTEM_ENVP@l(11);
-
- bl PASCALMAIN
- .globl _haltproc
- .type _haltproc,@function
- _haltproc:
- li 0,1 /* exit call */
- lis 3,U_SYSTEM_EXITCODE@h
- stw 3,U_SYSTEM_EXITCODE@l(3)
- sc
- b _haltproc
- /* Define a symbol for the first piece of initialized data. */
- .section ".data"
- .globl __data_start
- __data_start:
- data_start:
- .globl ___fpc_brk_addr /* heap management */
- .type ___fpc_brk_addr,@object
- .size ___fpc_brk_addr,4
- ___fpc_brk_addr:
- .long 0
- /*
- $Log$
- Revision 1.1 2003-05-20 23:56:40 florian
- * basic setup; derived from FreeBSD and Linux
- Revision 1.10 2003/05/12 22:36:45 florian
- + added setup of argv, argc and envp
- Revision 1.9 2002/09/07 16:01:20 peter
- * old logs removed and tabs fixed
- Revision 1.8 2002/08/31 21:29:57 florian
- * several PC related fixes
- Revision 1.7 2002/08/31 16:13:12 florian
- * made _start global
- Revision 1.6 2002/08/31 14:02:23 florian
- * r3 renamed to 3
- Revision 1.5 2002/08/31 14:01:28 florian
- * _haltproc to prt0.as added (Linux/PPC)
- Revision 1.4 2002/08/31 13:11:11 florian
- * several fixes for Linux/PPC compilation
- Revision 1.3 2002/08/19 21:19:15 florian
- * small fixes
- Revision 1.2 2002/07/26 17:09:44 florian
- * log fixed
- Revision 1.1 2002/07/26 16:57:40 florian
- + initial version, plain copy from glibc/sysdeps/powerpc/elf/start.S
- */
|
