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https://gitlab.com/freepascal.org/fpc/source.git
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137 lines
3.5 KiB
ActionScript
137 lines
3.5 KiB
ActionScript
#
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# $Id$
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# This file is part of the Free Pascal run time library.
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# Copyright (c) 1999-2000 by Michael Van Canneyt and Peter Vreman
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# members of the Free Pascal development team.
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#
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# See the file COPYING.FPC, included in this distribution,
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# for details about the copyright.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY;without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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#
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#**********************************************************************}
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#
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# Linux ELF startup code for Free Pascal
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#
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.file "prt1.as"
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.text
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.globl _start
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.type _start,@function
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_start:
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/* First locate the start of the environment variables */
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popl %esi
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movl %eax,%edi
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movl %esp,%ebx /* Points to the arguments */
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movl %esi,%eax
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incl %eax
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shll $2,%eax
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addl %esp,%eax
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andl $0xfffffff8,%esp /* Align stack */
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movl %eax,U_SYSTEM_ENVP /* Move the environment pointer */
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movl %esi,U_SYSTEM_ARGC /* Move the argument counter */
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movl %ebx,U_SYSTEM_ARGV /* Move the argument pointer */
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movl %edi,%eax
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xorl %ebp,%ebp
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pushl %eax
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pushl %esp
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pushl %edx
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pushl $_fini_dummy
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pushl $_init_dummy
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pushl %ebx
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pushl %esi
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pushl $main
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call __libc_start_main
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hlt
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/* fake main routine which will be run from libc */
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.globl cmain
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.type cmain,@object
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cmain:
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/* save return address */
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popl %eax
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movl %eax,___fpc_ret
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movl %ebx,___fpc_ret_ebx
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movl %esi,___fpc_ret_esi
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movl %edi,___fpc_ret_edi
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pushl %eax
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/* start the program */
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call PASCALMAIN
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hlt
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.globl _haltproc
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.type _haltproc,@function
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_haltproc:
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xorl %eax,%eax /* load and save exitcode */
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movw U_SYSTEM_EXITCODE,%ax
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movl ___fpc_ret,%edx /* return to libc */
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movl ___fpc_ret_ebx,%ebx
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movl ___fpc_ret_esi,%esi
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movl ___fpc_ret_edi,%edi
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push %edx
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_init_dummy:
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_fini_dummy:
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ret
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.globl __gmon_start__
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.type __gmon_start__,@object
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__gmon_start__:
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pushl %ebp
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movl __monstarted,%eax
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leal 0x1(%eax),%edx
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movl %esp,%ebp
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movl %edx,__monstarted
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testl %eax,%eax
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jnz .Lnomonstart
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pushl $etext /* Initialize gmon */
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pushl $_start
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call monstartup
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addl $8,%esp
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pushl $_mcleanup
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call atexit
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addl $4,%esp
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.Lnomonstart:
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movl %ebp,%esp
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popl %ebp
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ret
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.data
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.align 4
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.globl ___fpc_brk_addr /* heap management */
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.type ___fpc_brk_addr,@object
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.size ___fpc_brk_addr,4
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___fpc_brk_addr:
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.long 0
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___fpc_ret: /* return address to libc */
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.long 0
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___fpc_ret_ebx:
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.long 0
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___fpc_ret_esi:
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.long 0
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___fpc_ret_edi:
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.long 0
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.bss
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.lcomm __monstarted,4
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#
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# $Log$
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# Revision 1.3 2001-06-04 18:05:47 peter
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# * use own dummy for _init and _fini
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#
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# Revision 1.2 2000/10/15 09:09:23 peter
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# * startup code also needed syslinux->system updates
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#
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# Revision 1.1 2000/07/13 06:30:55 michael
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# + Initial import
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#
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