mirror of
https://gitlab.com/freepascal.org/fpc/source.git
synced 2025-05-03 06:53:43 +02:00
112 lines
2.5 KiB
ObjectPascal
112 lines
2.5 KiB
ObjectPascal
{
|
|
$Id$
|
|
}
|
|
unit initc;
|
|
|
|
interface
|
|
|
|
|
|
{$LINKLIB cygwin}
|
|
{$linklib kernel32}
|
|
|
|
{ this unit is just ment to run
|
|
startup code to get C code to work correctly PM }
|
|
|
|
|
|
implementation
|
|
|
|
uses
|
|
windows;
|
|
|
|
{$i textrec.inc}
|
|
|
|
|
|
procedure cygwin_crt0(p : pointer);cdecl;external;
|
|
|
|
{
|
|
procedure do_global_dtors;cdecl;external;
|
|
this does not work because
|
|
do_global_dtors is a static C function PM
|
|
it is inserted into the atexit chain,
|
|
but how do we call this from FPC ???
|
|
it seems to be done in exit function
|
|
but that one ends with _exit that is system dependent !! }
|
|
|
|
{ avoid loading of cygwin _exit code
|
|
so that exit returns
|
|
apparently this is not enough anymore
|
|
use longjmp instead PM }
|
|
var
|
|
entryjmpbuf,exitjmpbuf : jmp_buf;
|
|
const
|
|
exitjmpbufset : boolean = false;
|
|
|
|
procedure _exit(status : longint);cdecl;
|
|
begin
|
|
if exitjmpbufset then
|
|
longjmp(exitjmpbuf,1)
|
|
else
|
|
RunError(status);
|
|
end;
|
|
|
|
procedure C_exit(status : longint);popstack;external name '_exit';
|
|
|
|
const
|
|
STD_INPUT_HANDLE = $fffffff6;
|
|
STD_OUTPUT_HANDLE = $fffffff5;
|
|
STD_ERROR_HANDLE = $fffffff4;
|
|
|
|
|
|
procedure UpdateStdHandle(var t:TextRec;var stdHandle:longint;newHandle:longint);
|
|
{ Check if the stdHandle is the same as the one in the TextRec, then
|
|
also update the TextRec }
|
|
begin
|
|
if t.Handle=stdHandle then
|
|
t.Handle:=newHandle;
|
|
stdHandle:=newHandle;
|
|
end;
|
|
|
|
function entry : longint;
|
|
begin
|
|
longjmp(entryjmpbuf,1);
|
|
entry:=0;
|
|
end;
|
|
var
|
|
ConsoleMode: DWORD;
|
|
ConsoleModeValid : boolean;
|
|
|
|
initialization
|
|
ConsoleModeValid:=GetConsoleMode(GetStdHandle(STD_INPUT_HANDLE), @ConsoleMode);
|
|
if setjmp(entryjmpbuf)=0 then
|
|
begin
|
|
cygwin_crt0(@entry);
|
|
end;
|
|
|
|
if ConsoleModeValid then
|
|
SetConsoleMode(GetStdHandle(STD_INPUT_HANDLE), ConsoleMode);
|
|
{ Reinitialize std handles that can be changed }
|
|
UpdateStdHandle(TextRec(Input),StdInputHandle,GetStdHandle(STD_INPUT_HANDLE));
|
|
UpdateStdHandle(TextRec(Output),StdOutputHandle,GetStdHandle(STD_OUTPUT_HANDLE));
|
|
TextRec(StdOut).Handle:=StdOutputHandle;
|
|
UpdateStdHandle(TextRec(Stderr),StdErrorHandle,GetStdHandle(STD_ERROR_HANDLE));
|
|
|
|
finalization
|
|
{ should we pass exit code ?
|
|
its apparently only used by _exit so it doesn't matter PM }
|
|
if setjmp(exitjmpbuf)=0 then
|
|
begin
|
|
exitjmpbufset:=true;
|
|
{ C_exit(errorcode);
|
|
this code does not work correctly anymore
|
|
C function _exit is not called at end of exit function
|
|
thus the code of exit does not return at all
|
|
disabled PM }
|
|
end;
|
|
end.
|
|
{
|
|
$Log$
|
|
Revision 1.7 2002-09-07 16:01:28 peter
|
|
* old logs removed and tabs fixed
|
|
|
|
}
|