Re: [microblaze-uclinux] Problem with using -elf2flt

["David Montminy" <dpmontminy@xxxxxxxxx>]

This looks simular to the program I had in this post.

http://www.itee.uq.edu.au/~listarch/microblaze-uclinux/archive/2006/11/msg00067.html

Although I wasn't using -elf2flt, I was attempting to use mb-gcc to
compile my program outside of the uClinux kernel tree.  John Williams
recommended this link.

http://www.itee.uq.edu.au/~jwilliams/wiki/index.php/OutOfTreeCompile

I hope this helps,

David


On 12/17/06, Zhang Zhong <vxzhong@xxxxxxxxx> wrote:
> Hello,
>     when I use "mb-gcc -Wl,-elf2flt -o helloworld helloworld.c" to compile
> my simple helloworld program, if fails and outputs the following errors.
>    All I want to know is how to get a flat file without using ucfront tools?
> Is there anyway to use -Wl,-elf2flt with mb-gcc alone or use mb-elf2flt to
> get a flt file?
>
> /home/zz/xilinx/EDK/gnu/microblaze/lin/bin/../lib/gcc/microblaze/3.4.1/../../../../microblaze/bin/ld.real:
> warning: no memory region specified for section `.vectors.reset'
> /home/zz/xilinx/EDK/gnu/microblaze/lin/bin/../lib/gcc/microblaze/3.4.1/../../../../microblaze/bin/ld.real:
> warning: no memory region specified for section `.vectors.sw_exception'
> /home/zz/xilinx/EDK/gnu/microblaze/lin/bin/../lib/gcc/microblaze/3.4.1/../../../../microblaze/bin/ld.real:
> warning: no memory region specified for section `.vectors.interrupt'
> /home/zz/xilinx/EDK/gnu/microblaze/lin/bin/../lib/gcc/microblaze/3.4.1/../../../../microblaze/bin/ld.real:
> warning: no memory region specified for section `.vectors.hw_exception'
> /home/zz/xilinx/EDK/gnu/microblaze/lin/bin/../lib/gcc/microblaze/3.4.1/../../../../microblaze/bin/ld.real:
> section .vectors.reset [00000000 -> 00000007] overlaps section .text
> [00000000 -> 0000debf]
> /home/zz/xilinx/EDK/gnu/microblaze/lin/bin/../lib/gcc/microblaze/3.4.1/../../../../microblaze/bin/ld.real:
> section .vectors.sw_exception [00000008 -> 0000000f] overlaps section .text
> [00000000 -> 0000debf]
> /home/zz/xilinx/EDK/gnu/microblaze/lin/bin/../lib/gcc/microblaze/3.4.1/../../../../microblaze/bin/ld.real:
> section .vectors.interrupt [00000010 -> 00000017] overlaps section .text
> [00000000 -> 0000debf]
> /home/zz/xilinx/EDK/gnu/microblaze/lin/bin/../lib/gcc/microblaze/3.4.1/../../../../microblaze/bin/ld.real:
> section .vectors.hw_exception [00000018 -> 0000001f] overlaps section .text
> [00000000 -> 0000debf]
> helloworld.elf2flt: In function `_start1':
> helloworld.elf2flt(.text+0x10): undefined reference to `_stack'
> helloworld.elf2flt: In function `_crtinit':
> helloworld.elf2flt(.text+0xc4): undefined reference to `__sbss_start'
> helloworld.elf2flt(.text+0xcc): undefined reference to `__sbss_end'
> helloworld.elf2flt(.text+0xf4): undefined reference to `__bss_end'
> helloworld.elf2flt: In function `write':
> helloworld.elf2flt(.text+0x8f84): undefined reference to `outbyte'
> helloworld.elf2flt(.text+0x8fa8): undefined reference to `outbyte'
> helloworld.elf2flt: In function `read':
> helloworld.elf2flt(.text+0x918c): undefined reference to `inbyte'
> helloworld.elf2flt: In function `sbrk':
> helloworld.elf2flt(.text+0x9214): undefined reference to `_heap'
> helloworld.elf2flt(.text+0x9228): undefined reference to `_heap_end'
> collect2: ld returned 1 exit status
>
> --
> Zhang Zhong
> Email:vxzhong@xxxxxxxxx
>           zhangzhong@xxxxxxxxxxxxxx
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