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AFLplusplus/TODO.md
2020-08-13 21:27:11 +02:00

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# TODO list for AFL++
## Roadmap 2.67+
- AFL_MAP_SIZE for qemu_mode and unicorn_mode
- CPU affinity for many cores? There seems to be an issue > 96 cores
- afl-plot to support multiple plot_data
## Further down the road
afl-fuzz:
- setting min_len/max_len/start_offset/end_offset limits for mutation output
- add __sanitizer_cov_trace_cmp* support via shmem
llvm_mode:
- LTO - imitate sancov
- add __sanitizer_cov_trace_cmp* support
gcc_plugin:
- (wait for submission then decide)
- laf-intel
- better instrumentation (seems to be better with gcc-9+)
qemu_mode:
- update to 5.x (if the performance bug is gone)
- non colliding instrumentation
- rename qemu specific envs to AFL_QEMU (AFL_ENTRYPOINT, AFL_CODE_START/END,
AFL_COMPCOV_LEVEL?)
- add AFL_QEMU_EXITPOINT (maybe multiple?), maybe pointless as we have
persistent mode
- add/implement AFL_QEMU_INST_LIBLIST and AFL_QEMU_NOINST_PROGRAM
- add/implement AFL_QEMU_INST_REGIONS as a list of _START/_END addresses
## Ideas
- LTO/sancov: write current edge to prev_loc and use that information when
using cmplog or __sanitizer_cov_trace_cmp*. maybe we can deduct by follow
up edge numbers that both following cmp paths have been found and then
disable working on this edge id
- new tancov: use some lightweight taint analysis to see which parts of a
new queue entry is accessed and only fuzz these bytes - or better, only
fuzz those bytes that are newly in coverage compared to the queue entry
the new one is based on