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

[Pal Szasz]

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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