[coldfire-gnu-discuss] Problem with -m5307

[Nathan Sidwell]

LE VAILLANT Guillaume wrote:
> Hi,

> {standard input}: Assembler messages:
> {standard input}:10330: Error: invalid instruction for this 
> architecture; needs 68000 or higher (68000 [68ec000, 68hc000, 68hc001, 
> 68008, 68302, 68306, 68307, 68322, 68356], 68010, 68020 [68k, 68ec020], 
> 68030 [68ec030], 68040 [68ec040], 68060 [68ec060], cpu32 [68330, 68331, 
> 68332, 68333, 68334, 68336, 68340, 68341, 68349, 68360]) -- statement 
> `rorw $8,%d0' ignored
> {standard input}:10388: Error: invalid instruction for this 
> architecture; needs 68000 or higher (68000 [68ec000, 68hc000, 68hc001, 
> 68008, 68302, 68306, 68307, 68322, 68356], 68010, 68020 [68k, 68ec020], 
> 68030 [68ec030], 68040 [68ec040], 68060 [68ec060], cpu32 [68330, 68331, 
> 68332, 68333, 68334, 68336, 68340, 68341, 68349, 68360]) -- statement 
> `rorw $8,%d0' ignored

These are messages that the rorw $8,%d0 instruction is not supported on the 
m5307 cpu.  The 5307 is an ISA A cpu.  No coldfire ISA has a rotate instruction.

I'm guessing this is coming from an assembly insert -- if it isn't then it's a 
compiler bug.  To investigate further a testcase will be needed.

> udp.c: In function 'eXosip_read_message':
> udp.c:2153: error: impossible constraint in 'asm'
> udp.c:2175: error: impossible constraint in 'asm'
> udp.c:2189: error: impossible constraint in 'asm'
> make[6]: *** [udp.lo] Erreur 1
> make[6]: Leaving directory 
> `/home/glv/Coldfire/uClinux-dist/user/linphone/linphone-1.6.0/exosip'
> 
> So I tried to see if something looked wrong with these lines (2153, 
> 2175, 2189), but there are only calls to FD_SET() or FD_ISSET(). There 
> are many of these calls in the code and they don't seem to generate 
> errors...

Those must be being implemented as macros containing an erroneous assembly insert.

to help further we're going to need
*) preprocessed source code (you can get this by adding -save-temps to the 
compile line)
*) the exact command lines you're using to invoke the compiler (you're driving 
the compiler via ucfront-gcc.  We need the command given to m68k-uclinux-gcc. 
If you're unsure how to get that then add -v to the compile line, and include 
the messages you get).

nathan

-- 
Nathan Sidwell    ::   http://www.codesourcery.com   ::         CodeSourcery
nathan at codesourcery.com    ::     http://www.planetfall.pwp.blueyonder.co.uk