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64 lines
1.7 KiB
ObjectPascal
64 lines
1.7 KiB
ObjectPascal
{
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This file is part of the Free Pascal run time library.
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Copyright (c) 2016 by the Free Pascal development team
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System Entry point for AmigaOS4/PowerPC, Pascal only programs
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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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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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unit si_prc;
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interface
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implementation
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const
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amigaos4_signature: dword = 1; public name '__amigaos4__';
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var
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AOS_ExecBase: Pointer; public name '_ExecBase';
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IExec: Pointer; public name '_IExec';
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StkLen: LongInt; external name '__stklen';
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StackCookie: LongInt; external name '__stack_cookie';
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sysinit_jmpbuf: jmp_buf;
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ExitCode: LongInt;
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{ the definitions in there need AOS_Execbase and IExec }
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{$include execd.inc}
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{$include execf.inc}
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procedure PascalMain; external name 'PASCALMAIN';
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{ this function must be the first in this unit which contains code }
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{ apparently, the third argument contains the ExecBase on entry (KB) }
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function _FPC_proc_start(arg0: pointer; arg1: pointer; argExecBase: Pointer): longint; cdecl; public name '_start';
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begin
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AOS_ExecBase:=argExecBase;
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IExec:=PExecBase(AOS_ExecBase)^.MainInterface;
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{ The StackCookie check is only here so the symbol is referenced and
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doesn't get striped out }
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if StackCookie > 0 then
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if setjmp(sysinit_jmpbuf) = 0 then
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PascalMain;
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_FPC_proc_start:=ExitCode;
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end;
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procedure _FPC_proc_halt(_ExitCode: longint); cdecl; public name '_haltproc';
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begin
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ExitCode:=_ExitCode;
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longjmp(sysinit_jmpbuf,1);
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end;
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end.
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