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{
Copyright (c) 2000-2002 by Pierre Muller
This program allows to run the Makefiles
with the compiler running inside GDB
GDB only stops if there is something special
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
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. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
****************************************************************************}
program fpc_with_gdb;
{
This program uses several files :
-- 'gdb4fpc.ini' contains the standard breakpoints (see below)
-- 'gdb.fpc' is an optional file that can contain any other
instruction that GDB should do before starting.
Note that if gdb.fpc is present, no "run" command is
inserted if gdb4fpc.ini is found
but it can be inserted in gdb.fpc itself.
Use EXTDEBUG conditional to get debug information.
}
uses
dos;
const
{$ifdef Unix}
GDBExeName : String = 'gdbpas';
GDBAltExeName = 'gdb';
GDBIniName = '.gdbinit';
DefaultCompilerName = 'ppc386';
PathSep=':';
DirSep = '/';
{$else}
GDBExeName : String = 'gdbpas.exe';
GDBAltExeName = 'gdb.exe';
GDBIniName = 'gdb.ini';
DefaultCompilerName = 'ppc386.exe';
PathSep=';';
DirSep = '\';
{$endif not linux}
{ If you add a gdb.fpc file in a given directory }
{ GDB will read it; this allows you to add }
{ special tests in specific directories PM }
FpcGDBIniName = 'gdb.fpc';
GDBIniTempName : string = 'gdb4fpc.ini';
{ Dos/Windows GDB still need forward slashes }
procedure AdaptToGDB(var filename : string);
var
i : longint;
begin
for i:=1 to length(filename) do
if filename[i]='\' then
filename[i]:='/';
end;
var
fpcgdbini : text;
CompilerName,Dir,Name,Ext : String;
GDBError,GDBExitCode,i : longint;
begin
fsplit(paramstr(0),Dir,Name,Ext);
if (length(Name)>3) and (UpCase(Name[1])='G') then
CompilerName:=Copy(Name,2,255)+Ext
else
CompilerName:=DefaultCompilerName;
CompilerName:=fsearch(CompilerName,Dir+PathSep+GetEnv('PATH'));
{ support for info functions directly : used in makefiles }
if (paramcount=1) and (pos('-i',Paramstr(1))=1) then
begin
Exec(CompilerName,Paramstr(1));
exit;
end;
{$ifdef EXTDEBUG}
writeln(stderr,'Using compiler "',CompilerName,'"');
flush(stderr);
{$endif}
if fsearch(GDBIniTempName,'.')<>'' then
begin
Assign(fpcgdbini,GDBIniTempName);
{$ifdef EXTDEBUG}
writeln(stderr,'Erasing file "',GDBIniTempName,'"');
flush(stderr);
{$endif}
erase(fpcgdbini);
end;
GDBIniTempName:=fexpand('.'+DirSep+GDBIniTempName);
Assign(fpcgdbini,GdbIniTempName);
{$ifdef EXTDEBUG}
writeln(stderr,'Creating file "',GDBIniTempName,'"');
flush(stderr);
{$endif}
Rewrite(fpcgdbini);
Writeln(fpcgdbini,'set language pascal');
Write(fpcgdbini,'set args');
{ this will not work correctly if there are " or '' inside the command line :( }
for i:=1 to Paramcount do
begin
if pos(' ',Paramstr(i))>0 then
Write(fpcgdbini,' "'+ParamStr(i)+'"')
else
Write(fpcgdbini,' '+ParamStr(i));
end;
Writeln(fpcgdbini);
Writeln(fpcgdbini,'b SYSTEM_EXIT');
Writeln(fpcgdbini,'cond 1 EXITCODE <> 0');
Writeln(fpcgdbini,'set $_exitcode := -1');
{ b INTERNALERROR sometimes fails ... Don't know why. PM 2010-08-28 }
Writeln(fpcgdbini,'info fun INTERNALERROR');
Writeln(fpcgdbini,'b INTERNALERROR');
Writeln(fpcgdbini,'b HANDLEERRORADDRFRAME');
{ This one will fail unless sysutils unit is also loaded }
Writeln(fpcgdbini,'b RUNERRORTOEXCEPT');
if fsearch(FpcGDBIniName,'./')<>'' then
begin
Writeln(fpcgdbini,'source '+FpcGDBIniName);
end
else
Writeln(fpcgdbini,'run');
Writeln(fpcgdbini,'if ($_exitcode = -1)');
Writeln(fpcgdbini,' echo Program not completed');
Writeln(fpcgdbini,'else');
Writeln(fpcgdbini,' quit');
Writeln(fpcgdbini,'end');
Close(fpcgdbini);
{$ifdef EXTDEBUG}
writeln(stderr,'Closing file "',GDBIniTempName,'"');
flush(stderr);
{$endif}
GDBExeName:=fsearch(GDBExeName,Dir+PathSep+GetEnv('PATH'));
if GDBExeName='' then
GDBExeName:=fsearch(GDBAltExeName,Dir+PathSep+GetEnv('PATH'));
AdaptToGDB(CompilerName);
AdaptToGDB(GDBIniTempName);
{$ifdef EXTDEBUG}
Writeln(stderr,'Starting ',GDBExeName,
{$ifdef win32}
'--nw '+
{$endif win32}
'--nx --command='+GDBIniTempName+' '+CompilerName);
flush(stderr);
{$endif}
DosError:=0;
Exec(GDBExeName,
{$ifdef win32}
'--nw '+
{$endif win32}
'--nx --command='+GDBIniTempName+' '+CompilerName);
GDBError:=DosError;
GDBExitCode:=DosExitCode;
if (GDBError<>0) or (GDBExitCode<>0) then
begin
Writeln('Error running GDB');
if (GDBError<>0) then
Writeln('DosError = ',GDBError);
if (GDBExitCode<>0) then
Writeln('DosExitCode = ',GDBExitCode);
if GDBExitCode<>0 then
RunError(GDBExitCode)
else
RunError(GDBError);
end
else
Erase(fpcgdbini);
end.
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