History

Torsten Ruger 99b4468599 fix spelling		2014-08-28 22:32:53 +03:00
..
constants.rb	fix names and requires to get some elf out again (still crashes though)	2014-04-19 23:25:46 +03:00
null_section.rb	fix names and requires to get some elf out again (still crashes though)	2014-04-19 23:25:46 +03:00
object_file.rb	fix names and requires to get some elf out again (still crashes though)	2014-04-19 23:25:46 +03:00
object_writer.rb	inrtoduce block passes. move the allocation there and implement those simple optimisations	2014-06-11 11:41:50 +03:00
README.md	fix spelling	2014-08-28 22:32:53 +03:00
section.rb	adds first version of the expanded as assembler from mikko	2014-04-14 18:09:56 +03:00
string_table_section.rb	adds first version of the expanded as assembler from mikko	2014-04-14 18:09:56 +03:00
symbol_table_section.rb	adds first version of the expanded as assembler from mikko	2014-04-14 18:09:56 +03:00
text_section.rb	outputting hex for better comparison with objdump	2014-05-21 19:04:48 +03:00

README.md

Minimal elf support

This is really minimal and works only for our current use case

no external functions (all syscalls)
only position independant code (no relocation)
embedded data (into text), no data section

I was close to going the wilson way, ie assmble, load into memory and jump

But it is nice to produce executables. Also easier to test, what with segfaults and such.

Executalbe files are not supported (yet?), but object files work. So the only thing that remains is to call the linker on the produced object file. The resulting file is an executable that actually works!!

Thanks to Mikko for starting this arm/elf project in the first place: https://github.com/cyndis/as

This part definately needs tlc, so anyone who is interested, dig in!