Standards
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ELF is specified by the LSB:
The LSB basically links to other standards with minor extensions, in particular:
- Generic (both by SCO):
- System V ABI 4.1 (1997) www.sco.com/developers/devspecs/gabi41.pdf, no 64 bit, although a magic number is reserved for it. Same for core files. This is the first document you should look at when searching for information.
- System V ABI Update DRAFT 17 (2003) www.sco.com/developers/gabi/2003-12-17/contents.html, adds 64 bit. Only updates chapters 4 and 5 of the previous document: the others remain valid and are still referenced.
- Architecture specific (by the processor vendor):
A handy summary can be found at:
man elf