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#
# This file is part of the Free Pascal run time library.
# Copyright (c) 1999-2004 by Michael Van Canneyt, Peter Vreman,
# & Daniel Mantione, members of the Free Pascal development 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 ELF startup code for Free Pascal
#
# The code in this file is the default startup code, it is used unless
# libc is linked in, profiling is enabled or you are compiling a shared
# library.
#
/*
%a1 Contains a function pointer to be registered with `atexit'.
This is how the dynamic linker arranges to have DT_FINI
functions called for shared libraries that have been loaded
before this code runs.
%sp The stack contains the arguments and environment:
0(%sp) argc
4(%sp) argv[0]
...
(4*argc)(%sp) NULL
(4*(argc+1))(%sp) envp[0]
...
NULL
*/
.text
.globl _start
.type _start,@function
_start:
/* Clear the frame pointer. The ABI suggests this be done, to mark
the outermost frame obviously. */
sub.l %fp, %fp
/* Extract the arguments as encoded on the stack and set up the
arguments for `main': argc, argv. envp will be determined
later in __libc_start_main. */
move.l 8(%sp), %d0
move.l %d0, operatingsystem_parameter_envp
move.l 4(%sp), %d0
move.l %d0, operatingsystem_parameter_argv
move.l (%sp), %d0
move.l %d0, operatingsystem_parameter_argc
jbsr PASCALMAIN
illegal /* Crash if somehow `exit' does return. */
.file "prt0.as"
.text
.globl __entry
__entry:
jsr PASCALMAIN
.globl _haltproc
.type _haltproc,@function
_haltproc:
move.l #1,%d0
move.l operatingsystem_result,%d1
trap #0
bras _haltproc
.bss
.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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