centaur.git - ELF executable file editing toolkit.

Age	Commit message (Collapse)	Author
2013-06-24	Remove assertion that breaks with Red Hat's libelfmorephdr	norly

2013-06-24	PHDR addition. Should make x86-64 work in many cases.	norly

2013-06-24	mLayoutAuto: Do not move LOAD segments, and update PHDR PHDR	norly

2013-06-24	Reorder PHDRs according to ELF spec	norly

2013-06-24	mLayoutGetSpaceInPhdr: Use mPhdrLoadLowestHighest	norly

2013-06-24	PHDR: Find lowest/highest addr/offs	norly

2013-06-22	reladd: Work more with sh_addr instead of sh_offset	norly

2013-06-22	Minor fixes to PHDR expansion to lower addresses	norly

2013-06-22	PHDR: find by addr/offset	norly

2013-06-21	Use .rela.plt too - need this for x86-64c90	norly

2013-06-21	mFromFile: Initialize *me	norly

2013-06-21	Minor cleanup in reladd, 2nd pass	norly

2013-06-21	Merge cloneScn() into reladd.c	norly
	It's the only place where we use it, and it's case-specific
2013-06-21	LOAD PHDRs at top level, others as children. mPhdrForall().	norly
	The reference binaries had to be updated as PHDRs are now reordered.
2013-06-20	Add Elf/Phdr/Scn alloc/destroy	norly

2013-06-20	Extend relocation parser to full 32/64 bits	norly

2013-06-20	Cleaner ElfuPhdr alloc	norly

2013-06-20	Clean up code using ElfuScn	norly

2013-06-20	Separate library code, build .a/.so	norly

2013-06-18	Basic detour support	norly

2013-06-17	C90 compliance, except variadic macros and TODOs	norly
	Also removed a lot of dead code from the early days.
2013-06-16	mv main.c -> elfucli.c, make it scriptable via argssymrel	norly

2013-06-16	Clean up main.c a bit	norly

2013-06-15	Factor out symbol table handling	norly

2013-06-15	Rename mRelocate	norly

2013-06-15	Basic x86-64 support, not very usable in practice	norly
	Turns out that x86-64 aligns LOAD segments to 0x200000 bytes. Given that the mapping starts at 0x400000, there is not much room to expand... so there will be a need to add additional LOAD headers.
2013-06-15	Merge symbol tables. (Not fully ELF conformant)	norly
	Also, remove that nameptr member from symbols. It just had to cause trouble. Symbols are simply appended to the target's symbol table, which means that LOCAL symbols are not inserted at the beginning and we are thus ignoring an ELF spec. Might change that in the future, it's good enough for now and it's sure not to break anything with the old symbols. The code currently assumes that the target has a symbol table. We'll have to fix that, and also remove undefined and duplicate symbols.
2013-06-15	Flatten symtab to file - gdb works, check breaks.	norly

2013-06-15	Make symtab and reltab resident in ElfuScn	norly

2013-06-12	Rename elfedit to centaur, model to modelops	norly

2013-06-03	Do not insert STRTAB sections explicitly	norly

2013-06-03	Insert NOBITS sections (.bss), ignore empty sections	norly

2013-06-03	Guess where unknown functions are in .rel.plt	norly

2013-06-03	Disable memory dump to screen	norly

2013-06-03	Basic 32-bit SYMTAB and REL (not RELA) support	norly

2013-06-03	Simplify includes	norly

2013-06-01	Insert section names (with fixed prefix)	norly
	Ideally, the filename of the original .o file being inserted would be used as a prefix for the sections copied over. However for now that prefix is simply "reladd".
2013-05-31	Auto-layout file after --reladd	norly

2013-05-31	Pull out existing re-layouting code	norly

2013-05-30	More rigorous sh_addr and sh_offset checking	norly

2013-05-30	Redesign data structures, make basic reladd work.newparser	norly
	The memory ELF model is now a tree structure: ELF +--> PHDRs +--> PHDR +--> Section \| \| +--> Section \| \| ... \| \| \--> Section \| \| \| +--> PHDR +--> Section \| \| ... \| ... \| \--> Orphaned sections +--> Section ... \--> Section This effectively introduces semantics into the binary blob we are editing, and allows us to re-layout its contents much more easily while keeping as close as possible to what is assumed to be the original semantics. As a side-effect, a first meta-function had to be introduced (elfu_mScnForall) in order to traverse all leaves of the tree. Much old code has been removed given the leaner environment available now, and automated insertion of .text and .data sections from object files into executables now works. However nothing else is inserted (such as string tables or .bss) and no relocation takes place yet.
2013-05-28	Implement orphaned sections	norly
	Orphaned sections are not (fully) included in any LOAD PHDR and can thus be moved and stripped at will without changing the memory image of the program.
2013-05-28	Remove old and ugly printing functions	norly

2013-05-28	Add printing functions for models to ease debugging	norly

2013-05-27	Find PHDR -> PHDR dependencies	norly

2013-05-27	Only establish PHDR->Scn relationship for PT_LOAD	norly

2013-05-27	Restrict sh_link/sh_info evaluation where possible	norly

2013-05-27	Abstract model more - break 'make check'	norly
	Sections are now sorted by file offset and sh_link dependencies between them as well as PHDR-SHDR dependencies are deduced as much as possible. The downside is that while the output should still work just fine, 'make check' fails to establish binary equivalence of input and output if the section table is reordered. Thankfully, in normal GCC binaries it is already ordered so we don't have to worry about this. Unfortunately the ELF spec is very lax in this regard so we have to draw a line ourselves.
2013-05-27	Turn elfu_gPhdrContainsScn into a macro	norly

2013-05-27	Turn elfu_gScnSizeFile into a macro	norly