FrequentlyAskedQuestions

Technical

Crosscompiler & Toolchain

A couple of tools to generate executable code.

 
 ------------------------------------------
 | source code --- tool-chain ---> binary |
 ------------------------------------------
 
 tools:
 ------
 
 1.) compiler 
 2.) assembler
 3.) linker
 
 compiler:
 - read source file
 - optimization
 - generate assembly language code
 - do assembler call
 - do linker call
 
 assembler:
 - generate object file
 
 linker:
 - link object files
 
 
 cross toolchain howto
 ---------------------
 
 gnu autoconf terminology:
 
  --host	created programs run on specified systems
  --build	program gets build on specified system
  --target	program generates code for specified system (gcc, binutils only)

 example toolchain compilation:
 

  binutils:
 		--host=$origin
 		--build=$origin
 		--target=$target

  gcc:
 		--host=$origin
 		--build=$origin
 		--target=$target

  kernel:
 		--host=$target	 CC=$target-gcc
 		--build=$origin

  glibc:
 		--host=$target
 		--build=$origin

  binutils:
 		--host=$target
 		--build=$origin
 		--target=$target

  gcc:
 		--host=$target
 		--build=$origin
 		--target=$target

  and so on ...

Sociopolitical