Am 13.05.2014 21:56 schrieb "Johann Glaser" <johann.gla...@gmx.at>:
> > As this is true for FreePascal code (I guess), this doesn't necessarily > > hold for external libraries as the TCL library mentioned above. > > News on that front: Today I investigated a duplicate key exception in > FGL.TFPSMaps.Add(AKey: Pointer): Integer. In the current Debian package > fp-units-rtl-2.6.4 2.6.4+dfsg-2 this seems to be compiled with looots of > optimization and without stack frame: > > 0000000000001918 <FGL_TFPSMAP_$__ADD$POINTER$$LONGINT>: > 1918: 48 81 ec 18 01 00 00 sub $0x118,%rsp > 191f: 48 89 9c 24 08 01 00 mov %rbx,0x108(%rsp) > 1926: 00 > 1927: 4c 89 a4 24 10 01 00 mov %r12,0x110(%rsp) > 192e: 00 > 192f: 48 89 fb mov %rdi,%rbx > 1932: 49 89 f4 mov %rsi,%r12 > > Even GDB couldn't trace back the stack there. :-O Code in release packages is normally compiled using -O2, which can result in hard to follow backtraces. Regards, Sven
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