[ECOS] Error creating RedBoot for LEON

[Agus Ariffianto <aariffianto at students dot ee dot itb dot ac dot id>]

I am trying to build RedBoot disk for LEON (implemented on Altera
Stratix board. Please let me know if my steps are wrong.
I successfully created header and library files (including target.ld)
using configtool.
But I was failed compiling a simple hello program, using the library and
header files (and target.ld file). Here are what I did:

1. Create header and library files using configtool => ok

2. Compile helo.c
[agus@lskk-71 sparc-elf-3.2.3]$ sparc-elf-gcc -O2 -msoft-float
helloecos.c -o helloecos.ecos -I redboot-leon_install/include/ -L
redboot-leon_install/lib/ -Ttarget.ld -nostdlib
/tmp/ccq5fcnz.o: In function `main':
helloecos.c:(.text+0xc): undefined reference to `puts'
collect2: ld returned 1 exit status

as a comparison (hopefully it can help)
[agus@lskk-71 sparc-elf-3.2.3]$ sparc-elf-gcc -O2 -msoft-float
helloecos.c -o helloecos.ecos -I redboot-leon_install/include/ -L
redboot-leon_install/lib/ -Ttarget.ld
/opt/sparc-elf-3.2.3/lib/gcc-lib/sparc-elf/3.2.3/../../../../sparc-elf/bin/ld: error: no memory region specified for loadable section `.jcr'
collect2: ld returned 1 exit status

and this:
[agus@lskk-71 sparc-elf-3.2.3]$ sparc-elf-gcc -O2 -msoft-float -I
redboot-leon_install/include/ -L redboot-leon_install/lib/ helloecos.c
-o helloecos.ecos -nostdlib
/opt/sparc-elf-3.2.3/lib/gcc-lib/sparc-elf/3.2.3/../../../../sparc-elf/bin/ld: warning: cannot find entry symbol start; defaulting to 40000000
/tmp/ccOC5tgM.o: In function `main':
helloecos.c:(.text+0xc): undefined reference to `puts'
collect2: ld returned 1 exit status
[agus@lskk-71 sparc-elf-3.2.3]$

I have no idea what went wrong. Thank you.

Rgds,
Agus



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