Re: Error in creating arm toolchain without CT_ARCH_ARM_EABI option

[sami md <sami dot md dot ko at gmail dot com>]

Thanks for the reply, I will try this program tomorrow..

I tried Enabling Software FPU in both Kernel configuration and ct-ng
configuration.
Now the board boots properly :)

Regards
Sami

On Fri, Feb 25, 2011 at 1:32 PM, Bill Pringlemeir <bpringle@sympatico.ca> wrote:
>
> There are many things that can go wrong here. ?Turn on 'Kernel hacking'
> and select the 'Verbose user fault messages'. ?You might also want to
> replace your filesystem with initramfs image and or just make a simple
> hello world init.
>
> Below is an ARM Linux program that should build without a library, etc.
> Your init program might need libraries, etc. ?Also, if your kernels page
> fault handler doesn't map memory you can get the same symptom. ?You can
> compile the program, make it your init and see if it prints.
>
> fwiw,
> Bill Pringlemeir.
>
>
> /* arm-none-eabi-gcc -I/home/src/linux/usr/include -nostdlib
> hello_world.c -o hello_world */
> #include <linux/unistd.h>
>
> static inline int write(int fd, void *buf, int len)
> {
> ? ?int rval;
> ? ?asm volatile ("mov ?r0, %1\n\t"
> ? ? ? ?"mov ? ? r1, %2\n\t"
> ? ? ? ? ? ? ? ? "mov ? r2, %3\n\t"
> ? ? ? ?"mov ? ?r7, %4\n\t"
> ? ? ? ? ? ? ? ?"swi ? ?#7\n\t"
> ? ? ? ?"mov ? ?%0, r0\n\t"
> ? ? ? ? ? ? ? ?: "=r" (rval)
> ? ? ? ? ? ? ? ? ?: "r" (fd),
> ? ? ? ? ? ? ? ? ? ? ?"r" (buf),
> ? ? ? ? ? ? ? ? ? ? ? ? ? ?"r" (len),
> ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ?"Ir" (__NR_write)
> ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? : "r0", "r1", "r2", "r7");
> ? ?return rval;
> }
>
> struct timespec {
> ? ?long ? tv_sec; ? ? ? ?/* seconds */
> ? ?long ? tv_nsec; ? ? ? /* nanoseconds */
> };
>
> static inline int nanosleep(const struct timespec *req, struct timespec
> *rem)
> {
> ? ?int rval;
> ? ?asm volatile ("mov ?r0, %1\n\t"
> ? ? ? ?"mov ? ? r1, %2\n\t"
> ? ? ? ?"mov ? ?r7, %3\n\t"
> ? ? ? ? ? ? ? ?"swi ? ?#7\n\t"
> ? ? ? ?"mov ? ?%0, r0\n\t"
> ? ? ? ? ? ? ? ?: "=r" (rval)
> ? ? ? ? ? ? ? ? ?: "r" (req),
> ? ? ? ? ? ? ? ? ? ? ?"r" (rem),
> ? ? ? ? ? ? ? ? ? ? ? ? ? ?"Ir" (__NR_nanosleep)
> ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? : "r0", "r1", "r2", "r7");
> ? ?return rval;
> }
>
>
> #define print_it(a) ?write(0, (a), sizeof((a)))
> int _start(void)
> {
> ? ?int i;
> ? ?struct timespec ts = { 300000, 0 };
> ? ?for(i = 0; i < 5; i++) {
> ? ? ? ?if(nanosleep(&ts, 0))
> ? ? ? ? ? ?print_it ("Sleep failed.\n");
> ? ? ? ?print_it ("Hello World.\n");
> ? ?}
> ? ?print_it ("Good-bye cruel world.\n");
> ? ?return 0;
> }
>
>
> On 25 Feb 2011, sami.md.ko@gmail.com wrote:
>
>> Hi Yann E. MORIN
>>
>> ? ? ? ?Thanks for the help.
>> ? ? ? ?I tried to build my arm-toolchain without EABI on X86_64
>> ? ? ? ?machine and the build was successful
>>
>> ? ? ? ?Then i compiled kernel and created ?filesystem using this newly
>> ? ? ? ?created arm toolchain.
>>
>> ? ? ? ?However board is not booting, it stops after "Freeing init Memory"
>>
>> ? ? ? ?Pls let me know what could be the problem. I guess that
>> ? ? ? ?since Im creating a non EABI toolchain i need to give name of the
>> ? ? ? ?specific ABI i.e CT_ARCH_ABI ?during ct-ng configuration.
>>
>> ? ? ? ?How to find what what CT_ARCH_ABI option to use for my ARM soc ?
>>
>> ? ? ? ?Pls find my kernel_config, build.log and ctng_config in attachment.
>>
>> ? ? ? ?Note: EABI is disabled in kernel.
>>
>> Thanks
>> Sami
>>
>>
>> On Wed, Feb 23, 2011 at 5:09 AM, Yann E. MORIN
>> <yann.morin.1998@anciens.enib.fr> wrote:
>>> Sami, All,
>>>
>>> On Tuesday 22 February 2011 12:32:24 sami md wrote:
>>>> I am creating a gcc-4.3.3,glibc-2.9 based toolchain for ARM SoC with
>>>> crosstool-ng.
>>>> When "Use EABI" (i.e. CT_ARCH_ARM_EABI) option is set in "Target
>>>> Options" the toolchain is created properly and also works fine.
>>>>
>>>> But if i dont select "Use EABI" option, i get below errors:
>>> [--SNIP--]
>>>
>>> It works fine on my x86_64 machine, but on a i686, it breaks?!?...
>>> Wooopsss... :-( I'll look later, now is time for bed... :-O
>>>
>>>> The build.log and config files are attached.
>>>
>>> I could not use your .config as-is, as you are using custom kernel headers.
>>> So I used latest ones (2.6.37.1).
>>>
>>> Regards,
>>> Yann E. MORIN.
>>>
>>> --
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>

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