crosscompile doesn't work :(

crosscompile doesn't work :(

[Gabor Kerenyi]

hi!

I'm totally new to MIPS and the bigger trouble that I'm also
new to cross compiling.
I will get a little MIPS board with PCMCIA, USB, serial,
Ethernet, 4Mb flash memory. I have to build a linux for it
from scratch but I have never done cross compiling before.

I use debian (Woody) and I installed the toolchain package,
configured for mipsel-linux, I built the binutils and gcc,
(binutils 2.12, gcc 3.2.3)

I did:
tpkg-make mipsel-linux
cd binutils
debuild
debi

tpkg-install-libc mipsel-linux

cd ../gcc-3.2.3
debuild
debi

I can compile a simple c code, but I can't compile the kernel.
I tried to compile 2.4.19 and I ran into trouble at the beginning:

the 'as' said that -mcpu option is not recognized. OK, I removed
this option. Then everything seemed to be fine but when the 
compilation arrived to the arch/mips directiory than I got the
following error messages:

make[1]: Leaving directory `/usr/src/linux/arch/mips/math-emu'
make CFLAGS="-D__KERNEL__ -I/usr/src/linux/include -Wall 
-Wstrict-prototypes -Wno-trigraphs -O2 -fno-strict-aliasing 
-fno-common -fomit-frame-pointer -I /usr/src/linux/include/asm/gcc -G 
0 -mno-abicalls -fno-pic -pipe -mips2 -Wa,--trap " -C  arch/mips/sni
make[1]: Entering directory `/usr/src/linux/arch/mips/sni'
mipsel-linux-gcc -D__KERNEL__ -I/usr/src/linux/include -Wall 
-Wstrict-prototypes -Wno-trigraphs -O2 -fno-strict-aliasing 
-fno-common -fomit-frame-pointer -I /usr/src/linux/include/asm/gcc -G 
0 -mno-abicalls -fno-pic -pipe -mips2 -Wa,--trap  -c int-handler.S -o 
int-handler.o
/usr/src/linux/include/asm/mipsregs.h: Assembler messages:
/usr/src/linux/include/asm/mipsregs.h:562: Error: unrecognized opcode 
`static inline void tlb_probe(void)'
/usr/src/linux/include/asm/mipsregs.h:563: Warning: rest of line 
ignored; first ignored character is `{'
/usr/src/linux/include/asm/mipsregs.h:564: Error: unrecognized opcode 
`__asm__ __volatile__('
/usr/src/linux/include/asm/mipsregs.h:565: Warning: rest of line 
ignored; first ignored character is `"'
/usr/src/linux/include/asm/mipsregs.h:566: Warning: rest of line 
ignored; first ignored character is `"'
/usr/src/linux/include/asm/mipsregs.h:567: Warning: rest of line 
ignored; first ignored character is `"'
/usr/src/linux/include/asm/mipsregs.h:568: Warning: rest of line 
ignored; first ignored character is `"'
/usr/src/linux/include/asm/mipsregs.h:569: Warning: rest of line 
ignored; first ignored character is `}'

The board chose was only a test bacause I don't know anything about
the board I'm going to use. There is a nice Japanese page about it,
but I can't read it.

http://www.tcs-8000.info/products/

Can anyone help? I have to bulid a complete little system in 4Mb 
within a month.

I also tried to build the cross compile environment from the sources
directly not using toolchain but I got much less success. it didn't
compile at all (gcc).

Thanks a lot,

Gabor

wait on vr4181 part 2

[Steven Seeger]

If there is no wait, then what's that in arch/mips/vr4181/osprey/reset.c ?
void nec_osprey_halt(void)
{
	printk("KERN_NOTICE "\n** You can safely turn off the power.\n");
	while(1)
		__asm__(".set\tmips3\n\t"
			"wait\n\t"
			".set\tmips0");
}

Steve

wait on vr4181 part 2

[Steven Seeger]

If there is no wait, then what's that in arch/mips/vr4181/osprey/reset.c ?
void nec_osprey_halt(void)
{
	printk("KERN_NOTICE "\n** You can safely turn off the power.\n");
	while(1)
		__asm__(".set\tmips3\n\t"
			"wait\n\t"
			".set\tmips0");
}

Steve

Re: wait on vr4181 part 2

[Jun Sun]

On Mon, Apr 28, 2003 at 10:16:18AM -0700, Steven Seeger wrote:
> If there is no wait, then what's that in arch/mips/vr4181/osprey/reset.c ?

Simple - it is a bug. :)

I got a confirmation from NEC that Vr4181 does _not_ have wait instruction.
It should generate an exception though.

In the halt case, kernel is probably in such a zombie state that we
don't even see the exception.

Jun

> void nec_osprey_halt(void)
> {
> 	printk("KERN_NOTICE "\n** You can safely turn off the power.\n");
> 	while(1)
> 		__asm__(".set\tmips3\n\t"
> 			"wait\n\t"
> 			".set\tmips0");
> }
> 
> Steve
> 

Re: crosscompile doesn't work :(

[Jeff Baitis]

Gabor:

I just got binutils 2.12, gcc 3.2.3, and glibc 2.2.5 working on my Red Hat
Linux boxen, and I'm targeting mipsel-linux. If you would like the source /
binary RPMs to see what I did, let me know; maybe Alien can fix them up
for you.

I feel your pain concerning the cross compiling. I at first tried to install
GCC 3.2 everything to /opt/toolchains using --prefix and/or other options, but
it seemed like GCC was particularly upset with --prefix. I tried the gcc 3.2.3
source WITHOUT --prefix, and it seemed to configure itself properly and coexist
OK.

Best of luck!

-Jeff

On Mon, Apr 28, 2003 at 06:25:09PM +0200, Gabor Kerenyi wrote:
> hi!
> 
> I'm totally new to MIPS and the bigger trouble that I'm also
> new to cross compiling.
> I will get a little MIPS board with PCMCIA, USB, serial,
> Ethernet, 4Mb flash memory. I have to build a linux for it
> from scratch but I have never done cross compiling before.
> 
> I use debian (Woody) and I installed the toolchain package,
> configured for mipsel-linux, I built the binutils and gcc,
> (binutils 2.12, gcc 3.2.3)
> 
> I did:
> tpkg-make mipsel-linux
> cd binutils
> debuild
> debi
> 
> tpkg-install-libc mipsel-linux
> 
> cd ../gcc-3.2.3
> debuild
> debi
> 
> I can compile a simple c code, but I can't compile the kernel.
> I tried to compile 2.4.19 and I ran into trouble at the beginning:
> 
> the 'as' said that -mcpu option is not recognized. OK, I removed
> this option. Then everything seemed to be fine but when the 
> compilation arrived to the arch/mips directiory than I got the
> following error messages:
> 
> make[1]: Leaving directory `/usr/src/linux/arch/mips/math-emu'
> make CFLAGS="-D__KERNEL__ -I/usr/src/linux/include -Wall 
> -Wstrict-prototypes -Wno-trigraphs -O2 -fno-strict-aliasing 
> -fno-common -fomit-frame-pointer -I /usr/src/linux/include/asm/gcc -G 
> 0 -mno-abicalls -fno-pic -pipe -mips2 -Wa,--trap " -C  arch/mips/sni
> make[1]: Entering directory `/usr/src/linux/arch/mips/sni'
> mipsel-linux-gcc -D__KERNEL__ -I/usr/src/linux/include -Wall 
> -Wstrict-prototypes -Wno-trigraphs -O2 -fno-strict-aliasing 
> -fno-common -fomit-frame-pointer -I /usr/src/linux/include/asm/gcc -G 
> 0 -mno-abicalls -fno-pic -pipe -mips2 -Wa,--trap  -c int-handler.S -o 
> int-handler.o
> /usr/src/linux/include/asm/mipsregs.h: Assembler messages:
> /usr/src/linux/include/asm/mipsregs.h:562: Error: unrecognized opcode 
> `static inline void tlb_probe(void)'
> /usr/src/linux/include/asm/mipsregs.h:563: Warning: rest of line 
> ignored; first ignored character is `{'
> /usr/src/linux/include/asm/mipsregs.h:564: Error: unrecognized opcode 
> `__asm__ __volatile__('
> /usr/src/linux/include/asm/mipsregs.h:565: Warning: rest of line 
> ignored; first ignored character is `"'
> /usr/src/linux/include/asm/mipsregs.h:566: Warning: rest of line 
> ignored; first ignored character is `"'
> /usr/src/linux/include/asm/mipsregs.h:567: Warning: rest of line 
> ignored; first ignored character is `"'
> /usr/src/linux/include/asm/mipsregs.h:568: Warning: rest of line 
> ignored; first ignored character is `"'
> /usr/src/linux/include/asm/mipsregs.h:569: Warning: rest of line 
> ignored; first ignored character is `}'
> 
> The board chose was only a test bacause I don't know anything about
> the board I'm going to use. There is a nice Japanese page about it,
> but I can't read it.
> 
> http://www.tcs-8000.info/products/
> 
> Can anyone help? I have to bulid a complete little system in 4Mb 
> within a month.
> 
> I also tried to build the cross compile environment from the sources
> directly not using toolchain but I got much less success. it didn't
> compile at all (gcc).
> 
> Thanks a lot,
> 
> Gabor
> 
> 

-- 
         Jeffrey Baitis - Associate Software Engineer

                    Evolution Robotics, Inc.
                     130 West Union Street
                       Pasadena CA 91103

 tel: 626.535.2776  |  fax: 626.535.2777  |  baitisj@evolution.com