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- #
- # This file is part of the Free Pascal run time library.
- # Copyright (c) 2001 by Free Pascal Core Team
- #
- # See the file COPYING.FPC, included in this distribution,
- # for details about the copyright.
- #
- # 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.
- #
- #**********************************************************************}
- #
- # Linux m68k ELF startup code for linking with C lib for Free Pascal
- #
- .file "cprt0.as"
- .text
- .globl _start
- .type _start,@function
- _start:
- .globl __entry
- .type __entry,@function
- __entry:
- ######### This order of parameters is for ucLibc.
- # move.l 8(%sp),%d0
- # move.l %d0,operatingsystem_parameter_envp
- # move.l %d0,__environ
- # move.l 4(%sp),%d0
- # move.l %d0,operatingsystem_parameter_argv
- # move.l (%sp),%d0
- # move.l %d0,operatingsystem_parameter_argc
- #########
- sub.l %fp,%fp
- move.l (%sp)+,%d0
- move.l %d0,operatingsystem_parameter_argc
- move.l %sp,operatingsystem_parameter_argv
- lea.l 8(%sp,%d0.l*4),%a0
- move.l %a0,operatingsystem_parameter_envp
- move.l %sp,%a0 /* argv */
- move.l %sp,__stkptr
- pea (%sp) /* highest available stack address */
- pea (%a1) /* termination function provided by kernel */
- pea __libc_csu_fini
- pea __libc_csu_init
- pea (%a0) /* argv */
- move.l %d0,-(%sp) /* argc */
- pea PASCALMAIN
- jsr __libc_start_main
- illegal
- .size _start,.-_start
- .weak __libc_csu_init
- .type __libc_csu_init,@function
- __libc_csu_init:
- rts
- .size __libc_csu_init,.-__libc_csu_init
- .weak __libc_csu_fini
- .type __libc_csu_fini,@function
- __libc_csu_fini:
- rts
- .size __libc_csu_fini,.-__libc_csu_fini
- # Used by System_exit procedure
- .globl _haltproc
- .type _haltproc,@function
- _haltproc:
- # Call C exit function
- move.l operatingsystem_result,%d1
- move.l %d1,-(%sp)
- jsr exit
- moveq.l #1,%d0
- move.l (%sp)+,%d1
- trap #0
- bra _haltproc
- .size _haltproc,.-_haltproc
- .bss
- .type __stkptr,@object
- .size __stkptr,4
- .global __stkptr
- __stkptr:
- .skip 4
- .type operatingsystem_parameters,@object
- .size operatingsystem_parameters,12
- operatingsystem_parameters:
- .skip 3*4
- .global operatingsystem_parameter_envp
- .global operatingsystem_parameter_argc
- .global operatingsystem_parameter_argv
- .set operatingsystem_parameter_envp,operatingsystem_parameters+0
- .set operatingsystem_parameter_argc,operatingsystem_parameters+4
- .set operatingsystem_parameter_argv,operatingsystem_parameters+8
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