[uClinux-dev] LPC22xx build error on uClinux-dist-test-20061215, part 2

[Greg Ungerer]

Hi Brandon,

Brandon Fosdick wrote:
> Here's what I had to do to get a default build for LPC22xx to actually 
> build. I have no idea if this will actually run. I can make a patch if 
> anyone cares.

Please do generate patches when you have it working.
I can add this to the next dist, and 2.6.x-uc0 big
patches.

Regards
Greg



> First I modified vendors/Philips/LPC22xx/config.linux-2.6.x to define 
> both CONFIG_CPU_ARM7TDMI and CONFIG_CPU_LPC22xx then re-ran menuconfig 
> to force everything to defaults. I verified both symbols are defined in 
> linux-2.6.x/.config, then ran make again..
> 
> ---
> <snip>
>   CC      arch/arm/kernel/compat.o
>   AS      arch/arm/kernel/entry-armv.o
> arch/arm/kernel/entry-armv.S:344:2: warning: #warning "NPTL on non MMU 
> needs fixing"
> arch/arm/kernel/entry-armv.S:798:2: warning: #warning "NPTL on non MMU 
> needs fixing"
> arch/arm/kernel/entry-armv.S: Assembler messages:
> arch/arm/kernel/entry-armv.S:204: Error: undefined symbol NR_IRQS used 
> as an immediate value
> arch/arm/kernel/entry-armv.S:409: Error: undefined symbol NR_IRQS used 
> as an immediate value
> make[2]: *** [arch/arm/kernel/entry-armv.o] Error 1
> make[1]: *** [arch/arm/kernel] Error 2
> make[1]: Leaving directory 
> `/home/bfoz/Downloads/uClinux-dist-test/linux-2.6.x'
> make: *** [linux] Error 1
> ---
> 
> Adding
> #include "irqs.h"
> to linux-2.6.x/include/asm-arm/arch-lpc22xx/entry-macro.S solved that 
> problem. make clean && make...
> 
> ---
>   CC      arch/arm/mach-lpc22xx/arch.o
> arch/arm/mach-lpc22xx/arch.c:43: error: `MACH_TYPE_LPC22xx' undeclared 
> here (not in a function)
> arch/arm/mach-lpc22xx/arch.c:43: error: initializer element is not constant
> arch/arm/mach-lpc22xx/arch.c:43: error: (near initialization for 
> `__mach_desc_LPC22xx.nr')
> arch/arm/mach-lpc22xx/arch.c:44: warning: implicit declaration of 
> function `MAINTAINER'
> arch/arm/mach-lpc22xx/arch.c:45: error: initializer element is not constant
> arch/arm/mach-lpc22xx/arch.c:45: error: (near initialization for 
> `__mach_desc_LPC22xx.boot_params')
> arch/arm/mach-lpc22xx/arch.c:45: error: parse error before "INITIRQ"
> make[2]: *** [arch/arm/mach-lpc22xx/arch.o] Error 1
> make[1]: *** [arch/arm/mach-lpc22xx] Error 2
> make[1]: Leaving directory 
> `/home/bfoz/Downloads/uClinux-dist-test/linux-2.6.x'
> make: *** [linux] Error 1
> ---
> 
> In arch/arm/mach-lpc22xx/arch.c MACHINE_START is passed LPC22xx as the 
> first argument which results in the symbol MACH_TYPE_LPC22xx. However, 
> mach-types.h defines MACH_TYPE_LPC22XX. Fixed that, then make clean && 
> make...
> 
> ---
> arch/arm/mach-lpc22xx/arch.c:44: warning: implicit declaration of 
> function `MAINTAINER'
> arch/arm/mach-lpc22xx/arch.c:45: error: initializer element is not constant
> arch/arm/mach-lpc22xx/arch.c:45: error: (near initialization for 
> `__mach_desc_LPC22XX.boot_params')
> arch/arm/mach-lpc22xx/arch.c:45: error: parse error before "INITIRQ"
> ---
> 
> The MAINTAINER macros seems to have disapeared between 2.4.x and 2.6.x, 
> so comment that line. The INITIRQ macro doesn't exist in 2.6.x either, 
> but struct machine_desc still has init_irq, so stop using the macro. 
> make clean && make...
> 
> ---
>   MODPOST vmlinux
> /home/bfoz/Downloads/uClinux-dist-test/linux-2.6.x/arch/arm/boot/Makefile:17: 
> /home/bfoz/Downloads/uClinux-dist-test/linux-2.6.x/arch/arm/mach-lpc22xx//Makefile.boot: 
> No such file or directory
> make[2]: *** No rule to make target 
> `/home/bfoz/Downloads/uClinux-dist-test/linux-2.6.x/arch/arm/mach-lpc22xx//Makefile.boot'. 
>  Stop.
> make[1]: *** [zImage] Error 2
> make[1]: Leaving directory 
> `/home/bfoz/Downloads/uClinux-dist-test/linux-2.6.x'
> make: *** [linux] Error 1
> ---
> 
> Copy Makefile.boot from arch/arm/mach-versatile to 
> arch/arm/mach-lpc22xx. make clean && make...
> 
> ---
>   AS      arch/arm/boot/compressed/piggy.o
> make[3]: *** No rule to make target `include/asm/arch/uncompress.h', 
> needed by `arch/arm/boot/compressed/misc.o'.  Stop.
> make[2]: *** [arch/arm/boot/compressed/vmlinux] Error 2
> make[1]: *** [zImage] Error 2
> make[1]: Leaving directory 
> `/home/bfoz/Downloads/uClinux-dist-test/linux-2.6.x'
> make: *** [linux] Error 1
> ---
> 
> Add uncompress.h with stub functions to include/asm-arm/lpc22xx. make 
> clean && make...
> 
> ...it worked! Well, it built. Now for the hard part...
> 
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Greg Ungerer  --  Chief Software Dude       EMAIL:     gerg at snapgear.com
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