[fpc-devel] win32 debugging broken in fixes_2_2?

[Yury Sidorov]

From: "Martin Schreiber" <fpmse at bluewin.ch>
> Hi,
> Every program compiled with fixes_2_2 rev. 8006 crashes
> in gdb:
> "
> GNU gdb 6.6
> Copyright (C) 2006 Free Software Foundation, Inc.
> GDB is free software, covered by the GNU General Public License, and 
> you are
> welcome to change it and/or distribute copies of it under certain 
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> Type "show copying" to see the conditions.
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> This GDB was configured as "i686-pc-mingw32"...
> (gdb) run
> Starting program: G:\testcase\mse\console/console.exe
> Loaded symbols for C:\WINNT\system32\KERNEL32.DLL
> Loaded symbols for C:\WINNT\system32\OLEAUT32.DLL
> Loaded symbols for C:\WINNT\system32\OLE32.DLL
> Loaded symbols for C:\WINNT\system32\rpcrt4.dll
> Loaded symbols for C:\WINNT\system32\ADVAPI32.DLL
> Loaded symbols for C:\WINNT\system32\GDI32.DLL
> Loaded symbols for C:\WINNT\system32\USER32.DLL
>
> Program received signal SIGILL, Illegal instruction.
> 0x00402091 in SYSTEM_FPC_CPUCODEINIT ()
> (gdb) bt
> #0  0x00402091 in SYSTEM_FPC_CPUCODEINIT ()
> #1  0x0040a504 in SYSTEM_init ()
> #2  0x00406114 in fpc_initializeunits ()
> #3  0x7ffdf000 in ?? ()
> #4  0x00000000 in ?? ()
> (gdb)
> "
> The programs work without gdb.
> System: win2000, PII.
> The problem seems not to exist on another PC with win2000 and an AMD 
> Athlon.
> Any hints?

If CPU have no SSE support an exception occurs, but it handled 
properly by program. If running under gdb, it catches this exception.

Maybe other way to detect SSE support exists...

Yury.