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127 lines
2.5 KiB
Plaintext
127 lines
2.5 KiB
Plaintext
UPX TODO list. Last updated 2002-07-16.
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- rotten code, bring back to life and resync with UPX 1.2 branch
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- p_psx.cpp (psx/exe) needs some work
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- src/stub/l_lx_elf86.lds does not work with current binutils
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(generates a several MB file)
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IMPROVED COMPRESSION RATIO
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==========================
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- experiment with new filters
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- implement filters for linux/elf386
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- implement filters for dos/exe
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- filters: could we exploit a f->firstcall info field ?
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- for small programs (e.g. < 64k), try an additional algorithm
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to see if it gives better compression
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ALL FORMATS
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===========
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- more thoroughly test the exe-header in canPack()
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and throw exceptions when encountering bad values.
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- implement `--cpu=486' option to use bswap on the 32-bit formats
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(if cpu >= 486)
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- consider removing "or ebp,-1" when not needed
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FORMAT DJGPP2/COFF
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==================
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- handle overlays
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- fix default file extension handling when the --coff option is set
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FORMAT DOS/EXE
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==============
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- implement filters
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- add a check so that we don't pack djgpp1 binaries
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FORMAT LINUX/386
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================
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- don't mmap() the temporary output file - this seems to improve
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file io speed
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FORMAT LINUX/ELF386
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===================
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- implement filters
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- implement compressWithFilters()
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FORMAT TMT/ADAM
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===============
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- the decompressors are already aligned, no need for an
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extra alignment
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FORMAT WATCOM/LE
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================
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- the decompressors are already aligned, no need for an
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extra alignment
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- fix default file extension handling when the --le option is set
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- handle holes in the file
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- implement compressWithFilters()
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- add a call to verifyOverlappingDecompression()
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FORMAT WIN16/NE
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===============
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- implement readFileHeader() to correctly identify a win16/ne
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executable, so that the call for contribution will get thrown
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FORMAT WIN32/PE
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===============
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- verify that compressWithFilters() works
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- fix the section alignment with the Intel compiler
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- decrease runtime memory overhead
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2 - easy - mfx + ml) new switch(es) : do not compress resource types x,y,z
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or resource names a,b,c
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3 - medium - ml) rebuild exports
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3 - difficult) don't compress the BSS section and other holes.
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4 - medium - ml) fix when objectalign < 0x1000
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4 - easy - ml) put the original offset of moved resources somewhere into
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the res.dir. (if it's safe to do)
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4 - ??? - ml) fix FIXMEs
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5 - medium - ml) try to put the preprocessed imports & relocs back to their
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original section if possible. this could save some virtual memory
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address space.
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