Attached patch add the same sanity check for the frame pointer in TraceReAllocMem as
already is in TraceGetMem. It fixed crashes of Lazarus on win64 when compiled with
heaptrc.
Tested with fpc 2.1.3. fpc 2.3.1 is currently broken on win64, see mail of 8
April.
Vincent
Index: heaptrc.pp
===================================================================
--- heaptrc.pp (revision 7084)
+++ heaptrc.pp (working copy)
@@ -628,6 +628,7 @@
allocsize,
movesize,
i : ptrint;
+ oldbp,
bp : pointer;
pl : pdword;
pp : pheap_mem_info;
@@ -745,7 +746,10 @@
for i:=1 to tracesize do
begin
pp^.calls[i]:=get_caller_addr(bp);
+ oldbp:=bp;
bp:=get_caller_frame(bp);
+ if (bp<oldbp) or (bp>(StackBottom + StackLength)) then
+ bp:=nil;
end;
{ regenerate signature }
if usecrc then
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