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+ parse the area records of REL files

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git-svn-id: trunk@45554 -
This commit is contained in:
nickysn 2020-06-01 19:52:25 +00:00
parent c8337937b3
commit 19a66947bc
1 changed files with 70 additions and 3 deletions
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73
compiler/ogrel.pas
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@ -660,11 +660,12 @@ implementation
const
GenericRelErrMsg='Error reading REL file';
var
s: string;
s, AreaName: string;
RecType: Char;
HeaderFound: Boolean=false;
ExpectedAreas,ExpectedSymbols: LongInt;
ExpectedAreas,ExpectedSymbols,AreaSize,AreaFlags,AreaAddr: LongInt;
tmpint: SizeInt;
CurrSec: TObjSection=nil;
begin
FReader:=AReader;
InputFileName:=AReader.FileName;
@ -746,7 +747,73 @@ implementation
end;
'A': { area }
begin
{ todo: implement }
if not HeaderFound then
begin
InputError('Area record encountered before header');
exit;
end;
tmpint:=Pos(' ',s);
if tmpint<=1 then
begin
InputError('Invalid area record');
exit;
end;
AreaName:=copy(s,1,tmpint-1);
delete(s,1,tmpint);
if copy(s,1,5)<>'size ' then
begin
InputError('Invalid area record');
exit;
end;
delete(s,1,5);
tmpint:=Pos(' ',s);
if not TryStrToInt('$'+Copy(s,1,tmpint-1),AreaSize) then
begin
InputError('Invalid area size');
exit;
end;
delete(s,1,tmpint);
if copy(s,1,6)<>'flags ' then
begin
InputError('Invalid area record');
exit;
end;
delete(s,1,6);
tmpint:=Pos(' ',s);
if not TryStrToInt('$'+Copy(s,1,tmpint-1),AreaFlags) then
begin
InputError('Invalid area flags');
exit;
end;
delete(s,1,tmpint);
if copy(s,1,5)<>'addr ' then
begin
InputError('Invalid area record');
exit;
end;
delete(s,1,5);
if not TryStrToInt('$'+Copy(s,1,tmpint-1),AreaAddr) then
begin
InputError('Invalid area address');
exit;
end;
if AreaFlags<>0 then
begin
InputError('Unsupported area flags ('+tostr(AreaFlags)+')');
exit;
end;
if AreaAddr<>0 then
begin
InputError('Area address<>0 not supported');
exit;
end;
CurrSec:=Data.createsection(AreaName,1,[],false);
CurrSec.alloc(AreaSize);
if Data.ObjSectionList.Count>ExpectedAreas then
begin
InputError('Number of areas exceeds the number, declared in header');
exit;
end;
end;
'T': { T line () }
begin