Hello,
(As a side effect of digging into issue #13237):
When OpenExeFile is called with an empty filename argument, it
apparently opens stdin and crashes immediately thereafter trying to seek
in non-seekable stream.
The filename is empty whenever GetLineInfo is called with the address
that does not belong to valid module.
The attached patch fixes the crash.
Regards,
Sergei
Index: exeinfo.pp
===================================================================
--- exeinfo.pp (revision 12784)
+++ exeinfo.pp (working copy)
@@ -1044,6 +1044,8 @@
fillchar(e,sizeof(e),0);
e.bufsize:=sizeof(e.buf);
e.filename:=fn;
+ if fn = '' then // we don't want to read stdin
+ exit;
assign(e.f,fn);
{$I-}
ofm:=filemode;
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