2008-02-18 00:21:38     about compilation of bfin-uclinux kernel

2008-02-18 00:21:38     about compilation of bfin-uclinux kernel

sj tian (CHINA)

Message: 51174   

hi,

when I compiled the kernel of bfin-uclinux, I met a question.

The kernel is uclinux-dist -2007R1.1-RC3,Tool chain is blackfin-toolchain-07r1.1-3.i386.rpm.

I have setup toolchain and modified  the environment variable PATH.

after configturing  this kernel, I used make command  to compile the kernel, and there is a error"there is no file linux/autoconf.h or cannot  open file linux/autoconf.h" . but in fact  there is autoconf.h file under the directory of linux.

why ?

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2008-02-18 00:34:33     Re: about compilation of bfin-uclinux kernel

Mike Frysinger (UNITED STATES)

Message: 51176    no kernel file should be including linux/autoconf.h

you should post the actual error message you're seeing instead of describing it

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2008-02-18 02:54:05     Re: about compilation of bfin-uclinux kernel

sj tian (CHINA)

Message: 51180   

I see.

Error information as following:

bfin-uclinux-gcc-O2-Wall-D__uClinux__ -DEMBED –fno-builtin -I/home/tsj/uClinux-dist.R1.1-RC3 –isystem /home/tsj/uClinux-dist.R1.1-RC3/staging/usr/include –isystem/home/tsj/uClinux-dist.R1.1-RC3/staging/usr/include  -c –o cmd_uclinux.o cmd_uclinux.c

cmd_uclinux.c:4:28: error: linux/autoconf.h: No such file or Cannot open

make[2]: *** [cmd_uclinux.o] Error 1

make[2]: Leaving directory  ‘/home/tsj/uClinux-dist.R1.1-RC3/user/sash’

make[1] *** [all] Error 2

make[1] Leaving directory  ‘/home/tsj/uClinux-dist.R1.1-RC3/user’

make: *** [subdirs] Error 1

thanks!

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2008-02-18 03:42:48     Re: about compilation of bfin-uclinux kernel

Mike Frysinger (UNITED STATES)

Message: 51182    do not build the sash shell, you do not need/want it

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2008-02-19 01:32:09     Re: about compilation of bfin-uclinux kernel

sj tian (CHINA)

Message: 51255   

thanks!

I canceled  sash and chose other item in core application, then compilation is ok.

But there is another error. Cpu is bf537.

bfin-uclinux-gcc-O2 –pipe –fno-builtin –Wall -DEMBED -D__uClinux__ –isystem /home/tsj/uClinux-dist.R1.1-RC3/staging/usr/include –Wall –fno-builtin –isystem /home/tsj/uClinux-dist.R1.1-RC3/staging/usr/include  -I ../include –D__ADSPBLACKFIN__ -c –o cadd16.o cadd16.c

make: expand.c:489: allocated_variable_append: Assertion”current_variable_set_listànext !=0” failed.

make[2]: *** [all] abort

make[2]: Leaving directory  ‘/home/tsj/uClinux-dist..R1.1-RC3/lib/libbfdsp’

make[1] *** [all] Error 2

make[1] Leaving directory  ‘/home/tsj/uClinux-dist.R1.1-RC3/lib’

make: *** [subdirs] Error 1

When I canceled build libbfdsp item, compilation is ok. But build libbfdsp item need not be chosen?

By the way, when I compiled, I found kernel image file is up to 11.8M, why so big? I need a small kernel image about 1M,how to configure? Where to find a help document to introduce kernel configuration.

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2008-02-19 02:06:41     Re: about compilation of bfin-uclinux kernel

Mike Frysinger (UNITED STATES)

Message: 51257    please review the FAQ ... the error you're showing is covered there

as for image size, you'll have to enable/disable whatever options you want