Re: [gentoo-embedded] asm/page.h: No such file or directory - Link error

[Pal Szasz <space@spacesoftwarestudio.com>]

Just a little addition: there is another flag which might be involved:

-mfloat-abi=softfp

/Pal Szasz

Pal Szasz wrote:
> Hi!
>
> Hmm... I think somebody else has to help you...
> All I know that floating point ninstructions on ARM are a bit tricky.
> The core doesn't support that, but there is an optional co-processor. 
> And even if the co-processor is not there, there are two ways to 
> emulate it in software. Unfortunately the way floating point 
> operations are handled must be specified at compile time, and must 
> match in every application/lib... and that's the problem here. I recon 
> there is a flag, -mfpu=vfp which controll the floating point 
> instructions. It seems uclibc and gcc was built with different 
> flags... so probably you have to rebuild one of them....
> Or maybe you are using the wrong uclibc lib?
>
> /Pal Szasz
>
> Jean-Claude Gervais wrote:
>> Thank you, Pal!
>>
>>     That did indeed help; by putting an empty file at
>>
>> /usr/arm-softfloat-linux-uclibc/usr/include/asm/page.h
>>
>> I was able to compile, however, now the link fails.
>>
>> I think it might be something to do with my USE flags?
>>
>> Anyone know?
>>
>> [...]
>> rm -f libc.a shared_libc.a
>> objs=`cat obj.*` ; \
>>          arm-softfloat-linux-uclibc-ar cr libc.a $objs && \
>>          arm-softfloat-linux-uclibc-ar dN 2 libc.a $objs && \
>>          arm-softfloat-linux-uclibc-ar dN 2 libc.a $objs
>> arm-softfloat-linux-uclibc-ar cr libc.a obj.signal
>> arm-softfloat-linux-uclibc-ar cr libc.a obj.string.generic
>> arm-softfloat-linux-uclibc-ar cr libc.a obj.string.arm
>> arm-softfloat-linux-uclibc-ar cr libc.a obj.string
>> arm-softfloat-linux-uclibc-ar cr libc.a obj.sysdeps.common
>> arm-softfloat-linux-uclibc-ar cr libc.a obj.sysdeps.arm
>> cp libc.a shared_libc.a
>> arm-softfloat-linux-uclibc-ranlib libc.a
>> arm-softfloat-linux-uclibc-ld -EL -shared --warn-common --warn-once -z
>> combreloc -z defs -s -z relro  -soname=libc.so.0 -o libuClibc-0.9.28.so
>> \
>>                 --whole-archive shared_libc.a \
>>                 ../libc/misc/internals/interp.o --no-whole-archive \
>>                 -init
>> __uClibc_init ../lib/ld-uClibc.so.0 
>> /usr/lib/gcc/arm-softfloat-linux-uclibc/4.1.2/libgcc.a 
>> ../lib/ld-uClibc.so.0: warning: multiple common of `__libc_stack_end'
>> shared_libc.a(__uClibc_main.o): warning: previous common is here
>> arm-softfloat-linux-uclibc-ld:
>> ERROR: 
>> /usr/lib/gcc/arm-softfloat-linux-uclibc/4.1.2/libgcc.a(_udivsi3.o) 
>> uses VFP instructions, whereas libuClibc-0.9.28.so does not
>> arm-softfloat-linux-uclibc-ld: failed to merge target specific data of
>> file /usr/lib/gcc/arm-softfloat-linux-uclibc/4.1.2/libgcc.a(_udivsi3.o)
>> arm-softfloat-linux-uclibc-ld:
>> ERROR: /usr/lib/gcc/arm-softfloat-linux-uclibc/4.1.2/libgcc.a(_divsi3.o)
>> uses VFP instructions, whereas libuClibc-0.9.28.so does not
>> arm-softfloat-linux-uclibc-ld: failed to merge target specific data of
>> file /usr/lib/gcc/arm-softfloat-linux-uclibc/4.1.2/libgcc.a(_divsi3.o)
>> arm-softfloat-linux-uclibc-ld:
>> ERROR: 
>> /usr/lib/gcc/arm-softfloat-linux-uclibc/4.1.2/libgcc.a(_umodsi3.o) 
>> uses VFP instructions, whereas libuClibc-0.9.28.so does not
>> arm-softfloat-linux-uclibc-ld: failed to merge target specific data of
>> file /usr/lib/gcc/arm-softfloat-linux-uclibc/4.1.2/libgcc.a(_umodsi3.o)
>> arm-softfloat-linux-uclibc-ld:
>> ERROR: /usr/lib/gcc/arm-softfloat-linux-uclibc/4.1.2/libgcc.a(_modsi3.o)
>> uses VFP instructions, whereas libuClibc-0.9.28.so does not
>> arm-softfloat-linux-uclibc-ld: failed to merge target specific data of
>> file /usr/lib/gcc/arm-softfloat-linux-uclibc/4.1.2/libgcc.a(_modsi3.o)
>> arm-softfloat-linux-uclibc-ld:
>> ERROR: 
>> /usr/lib/gcc/arm-softfloat-linux-uclibc/4.1.2/libgcc.a(_dvmd_lnx.o) 
>> uses VFP instructions, whereas libuClibc-0.9.28.so does not
>> arm-softfloat-linux-uclibc-ld: failed to merge target specific data of
>> file /usr/lib/gcc/arm-softfloat-linux-uclibc/4.1.2/libgcc.a(_dvmd_lnx.o)
>> arm-softfloat-linux-uclibc-ld:
>> ERROR: 
>> /usr/lib/gcc/arm-softfloat-linux-uclibc/4.1.2/libgcc.a(_addsubdf3.o) 
>> uses VFP instructions, whereas libuClibc-0.9.28.so does not
>> arm-softfloat-linux-uclibc-ld: failed to merge target specific data of
>> file 
>> /usr/lib/gcc/arm-softfloat-linux-uclibc/4.1.2/libgcc.a(_addsubdf3.o)
>> arm-softfloat-linux-uclibc-ld:
>> ERROR: 
>> /usr/lib/gcc/arm-softfloat-linux-uclibc/4.1.2/libgcc.a(_muldivdf3.o) 
>> uses VFP instructions, whereas libuClibc-0.9.28.so does not
>> arm-softfloat-linux-uclibc-ld: failed to merge target specific data of
>> file 
>> /usr/lib/gcc/arm-softfloat-linux-uclibc/4.1.2/libgcc.a(_muldivdf3.o)
>> arm-softfloat-linux-uclibc-ld:
>> ERROR: /usr/lib/gcc/arm-softfloat-linux-uclibc/4.1.2/libgcc.a(_cmpdf2.o)
>> uses VFP instructions, whereas libuClibc-0.9.28.so does not
>> arm-softfloat-linux-uclibc-ld: failed to merge target specific data of
>> file /usr/lib/gcc/arm-softfloat-linux-uclibc/4.1.2/libgcc.a(_cmpdf2.o)
>> arm-softfloat-linux-uclibc-ld:
>> ERROR: 
>> /usr/lib/gcc/arm-softfloat-linux-uclibc/4.1.2/libgcc.a(_fixunsdfsi.o) 
>> uses VFP instructions, whereas libuClibc-0.9.28.so does not
>> arm-softfloat-linux-uclibc-ld: failed to merge target specific data of
>> file 
>> /usr/lib/gcc/arm-softfloat-linux-uclibc/4.1.2/libgcc.a(_fixunsdfsi.o)
>> arm-softfloat-linux-uclibc-ld:
>> ERROR: 
>> /usr/lib/gcc/arm-softfloat-linux-uclibc/4.1.2/libgcc.a(_truncdfsf2.o) 
>> uses VFP instructions, whereas libuClibc-0.9.28.so does not
>> arm-softfloat-linux-uclibc-ld: failed to merge target specific data of
>> file 
>> /usr/lib/gcc/arm-softfloat-linux-uclibc/4.1.2/libgcc.a(_truncdfsf2.o)
>> arm-softfloat-linux-uclibc-ld:
>> ERROR: /usr/lib/gcc/arm-softfloat-linux-uclibc/4.1.2/libgcc.a(_divdi3.o)
>> uses VFP instructions, whereas libuClibc-0.9.28.so does not
>> arm-softfloat-linux-uclibc-ld: failed to merge target specific data of
>> file /usr/lib/gcc/arm-softfloat-linux-uclibc/4.1.2/libgcc.a(_divdi3.o)
>> arm-softfloat-linux-uclibc-ld:
>> ERROR: /usr/lib/gcc/arm-softfloat-linux-uclibc/4.1.2/libgcc.a(_moddi3.o)
>> uses VFP instructions, whereas libuClibc-0.9.28.so does not
>> arm-softfloat-linux-uclibc-ld: failed to merge target specific data of
>> file /usr/lib/gcc/arm-softfloat-linux-uclibc/4.1.2/libgcc.a(_moddi3.o)
>> arm-softfloat-linux-uclibc-ld:
>> ERROR: /usr/lib/gcc/arm-softfloat-linux-uclibc/4.1.2/libgcc.a(_clz.o)
>> uses VFP instructions, whereas libuClibc-0.9.28.so does not
>> arm-softfloat-linux-uclibc-ld: failed to merge target specific data of
>> file /usr/lib/gcc/arm-softfloat-linux-uclibc/4.1.2/libgcc.a(_clz.o)
>>
>>
>> On Wed, 2007-10-31 at 19:28 +0100, Pal Szasz wrote:
>>  
>>> Hi!
>>>
>>> I simply created an empty page.h file :-)
>>>
>>> Jean-Claude Gervais wrote:
>>>    
>>>> Hello,
>>>>
>>>>         I'm getting a compilation error trying to build uClibc on 
>>>> an x86
>>>> host for an ARM host using crossdev 0.9.18-r4:
>>>>
>>>> UCLIBC_CPU="ARM920T" USE="-*" crossdev -v -S --ex-gdb --target
>>>> arm-softfloat-linux-uclibc
>>>>
>>>> [...]
>>>>
>>>> arm-softfloat-linux-uclibc-strip -x -R .note -R .comment brk.o
>>>> ioperm.c:47:22: error: asm/page.h: No such file or directory
>>>>
>>>>
>>>>  * Host Portage ARCH:     x86
>>>>  * Target Portage ARCH:   arm
>>>>  * Target System:         arm-softfloat-linux-uclibc
>>>>  * Stage:                 4 (C/C++ compiler)
>>>>
>>>>  * binutils:              binutils-[stable]
>>>>  * gcc:                   gcc-[stable]
>>>>  * headers:               linux-headers-[stable]
>>>>  * libc:                  uclibc-[stable]
>>>>  * Extra: gdb:            DO IT
>>>>
>>>>  * PORTDIR_OVERLAY:       /usr/local/portage
>>>>  * PORT_LOGDIR:           /var/log/portage
>>>>  *
>>>> PKGDIR:                
>>>> /usr/portage/packages/cross/arm-softfloat-linux-uclibc
>>>>  * PORTAGE_TMPDIR:        /var/tmp/cross/arm-softfloat-linux-uclibc
>>>>   _  -  ~  -  _  -  ~  -  _  -  ~  -  _  -  ~  -  _  -  ~  -  _  -  
>>>> ~  -
>>>> _  -  ~  -  _  -  ~  -  _  -  ~  -  _  -  ~  -  _  -  ~  -  _  -  ~  -
>>>> _  -  ~  - Portage 2.1.3.16 (default-linux/x86/2007.0, gcc-4.1.2, 
>>>> glibc-2.6.1-r0,
>>>> 2.6.22-gentoo-r5 i686)
>>>> =================================================================
>>>> System uname: 2.6.22-gentoo-r5 i686 Intel(R) Pentium(R) 4 CPU 2.40GHz
>>>> Timestamp of tree: Tue, 30 Oct 2007 17:00:10 +0000
>>>> distcc 2.18.3 i686-pc-linux-gnu (protocols 1 and 2) (default port 
>>>> 3632)
>>>> [enabled]
>>>> app-shells/bash:     3.2_p17
>>>> dev-lang/python:     2.4.4-r6
>>>> dev-python/pycrypto: 2.0.1-r6
>>>> sys-apps/baselayout: 1.12.9-r2
>>>> sys-apps/sandbox:    1.2.18.1-r2
>>>> sys-devel/autoconf:  2.13, 2.61-r1
>>>> sys-devel/automake:  1.5, 1.6.3, 1.7.9-r1, 1.8.5-r3, 1.9.6-r2, 1.10
>>>> sys-devel/binutils:  2.18-r1
>>>> sys-devel/gcc-config: 1.3.16
>>>> sys-devel/libtool:   1.5.24
>>>> virtual/os-headers:  2.6.22-r2
>>>>
>>>> Is there a fix for this?
>>>> Thank you
>>>>
>>>>         
>>
>>   
>
>

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