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{
Copyright (c) 1998-2002 by Pierre Muller
Simple unit to add source line and column to each
memory allocation made with heaptrc unit
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.
****************************************************************************}
unit ppheap;
{$i fpcdefs.inc}
interface
uses heaptrc;
{ call this function before any memory allocation
in a unit initialization code (PM) }
procedure pp_heap_init;
procedure ppheap_register_file(name : string;index : longint);
implementation
uses
cutils,globtype,globals,fmodule;
{*****************************************************************************
Filename registration
*****************************************************************************}
{ We need to avoid using memory allocation here
and thus use a fixed size static array }
const
MaxFiles = 1024;
MaxNameLength = 39;
type
theapfileinfo = record
name : string[MaxNameLength];
index : longint;
end;
tfileinfoarray = array [1..MaxFiles] of theapfileinfo;
var
fileinfoarray : tfileinfoarray;
last_index : longint;
procedure ppheap_register_file(name : string;index : longint);
var
len,pos : longint;
begin
inc(last_index);
if last_index <= MaxFiles then
begin
{ Keep last part of name if too long }
len:=length(name);
if len>MaxNameLength then
begin
pos:=len-MaxNameLength+4;
fileinfoarray[last_index].name:='...'+copy(name,pos,MaxNameLength);
end
else
begin
pos:=1;
fileinfoarray[last_index].name:=copy(name,pos,MaxNameLength);
end;
fileinfoarray[last_index].index:=index;
end
else
writeln(stderr,'file',name,' has index ',index);
end;
function getfilename(index : longint) : string;
var
i : longint;
begin
for i:=1 to last_index do
begin
if fileinfoarray[i].index=index then
begin
getfilename:=fileinfoarray[i].name;
exit;
end;
end;
getfilename:=tostr(index);
end;
{*****************************************************************************
Heaptrc callbacks
*****************************************************************************}
type
pextra_info = ^textra_info;
textra_info = record
line,
col,
fileindex : longint;
end;
procedure set_extra_info(p : pointer);
begin
with pextra_info(p)^ do
begin
line:=current_filepos.line;
col:=current_filepos.column;
if assigned(current_module) then
fileindex:=current_module.unit_index*100000+current_filepos.fileindex
else
fileindex:=current_filepos.fileindex;
end;
end;
procedure show_extra_info(var t : text;p : pointer);
begin
with pextra_info(p)^ do
begin
writeln(t,'Memory allocated at '+getfilename(fileindex)+'('+tostr(line)+','+tostr(col)+') ');
end;
end;
const
pp_heap_inited : boolean = false;
procedure pp_heap_init;
begin
if not pp_heap_inited then
begin
{$ifdef extheaptrc}
keepreleased:=true;
{$endif extheaptrc}
SetHeapTraceOutput('heap.log');
SetHeapExtraInfo(sizeof(textra_info),
@set_extra_info,
@show_extra_info);
end;
pp_heap_inited:=true;
end;
begin
pp_heap_init;
end.
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