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gcc cross compiler for "powerpc-eabi"(with out OS)
- From: Thulasi Ramu J <tramu at cdotb dot ernet dot in>
- To: gcc-help at gcc dot gnu dot org
- Date: Wed, 04 May 2011 15:06:28 +0530
- Subject: gcc cross compiler for "powerpc-eabi"(with out OS)
Dear Sir,
We want to use GCC for compiling code to a board based on MPC8260 processor.
The code consists of C and assembly languages to initialize processor
and test
the interfaces in the board. There will not be any OS on the board.
We have done the following by selecting target=powerpc-eabi option.
1) Build binutils (binutils-2.21)
2) Build bootstrap gcc (gcc-4.4.1)
3) Build newlib (newlib-1.19.0)
4) Build full gcc
But, we are stuck with implementing __eabi(), __init() and __fini()
functions.
Normally we do the following
1. initilize MPC8260 registers (including r1,Stack pointer)
2. Intialize Memory controller and SIU
3. Finally we call main( in C code)
1. We would like to know what is done in __eabi() function which is
included in the main() by default by the compiler as I was getting
undefined reference to __eabi in main function.
2. What is the function of __init() in generally which is called by
__eabi() function?
3. Similarly, how to implement these functions for my target ? Any
documents or any clues..
Please help in this direction.
REgards,
Thulasi