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Fix typos

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llzmb 2021-11-26 13:28:04 +01:00
parent 2412ff63e3
commit 7604dba6d6
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18
docs/env_variables.md
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@ -143,7 +143,7 @@ Available options:
- CLANG - outdated clang instrumentation - CLANG - outdated clang instrumentation
- CLASSIC - classic AFL (map[cur_loc ^ prev_loc >> 1]++) (default) - CLASSIC - classic AFL (map[cur_loc ^ prev_loc >> 1]++) (default)
You can also specify CTX and/or NGRAM, seperate the options with a comma "," You can also specify CTX and/or NGRAM, separate the options with a comma ","
then, e.g.: `AFL_LLVM_INSTRUMENT=CLASSIC,CTX,NGRAM-4` then, e.g.: `AFL_LLVM_INSTRUMENT=CLASSIC,CTX,NGRAM-4`
Note: It is actually not a good idea to use both CTX and NGRAM. :) Note: It is actually not a good idea to use both CTX and NGRAM. :)
@ -527,23 +527,23 @@ checks or alter some of the more exotic semantics of the tool:
The QEMU wrapper used to instrument binary-only code supports several settings: The QEMU wrapper used to instrument binary-only code supports several settings:
- Setting `AFL_COMPCOV_LEVEL` enables the CompareCoverage tracing of all cmp - Setting `AFL_COMPCOV_LEVEL` enables the CompareCoverage tracing of all cmp
and sub in x86 and x86_64 and memory comparions functions (e.g. strcmp, and sub in x86 and x86_64 and memory comparison functions (e.g., strcmp,
memcmp, ...) when libcompcov is preloaded using `AFL_PRELOAD`. More info at memcmp, ...) when libcompcov is preloaded using `AFL_PRELOAD`. More info at
[qemu_mode/libcompcov/README.md](../qemu_mode/libcompcov/README.md). [qemu_mode/libcompcov/README.md](../qemu_mode/libcompcov/README.md).
There are two levels at the moment, `AFL_COMPCOV_LEVEL=1` that instruments There are two levels at the moment, `AFL_COMPCOV_LEVEL=1` that instruments
only comparisons with immediate values / read-only memory and only comparisons with immediate values / read-only memory and
`AFL_COMPCOV_LEVEL=2` that instruments all the comparions. Level 2 is more `AFL_COMPCOV_LEVEL=2` that instruments all the comparisons. Level 2 is more
accurate but may need a larger shared memory. accurate but may need a larger shared memory.
- `AFL_DEBUG` will print the found entrypoint for the binary to stderr. Use - `AFL_DEBUG` will print the found entry point for the binary to stderr. Use
this if you are unsure if the entrypoint might be wrong - but use it this if you are unsure if the entry point might be wrong - but use it
directly, e.g. `afl-qemu-trace ./program`. directly, e.g. `afl-qemu-trace ./program`.
- `AFL_ENTRYPOINT` allows you to specify a specific entrypoint into the binary - `AFL_ENTRYPOINT` allows you to specify a specific entry point into the
(this can be very good for the performance!). The entrypoint is specified as binary (this can be very good for the performance!). The entry point is
hex address, e.g. `0x4004110`. Note that the address must be the address of specified as hex address, e.g. `0x4004110`. Note that the address must be
a basic block. the address of a basic block.
- Setting `AFL_INST_LIBS` causes the translator to also instrument the code - Setting `AFL_INST_LIBS` causes the translator to also instrument the code
inside any dynamically linked libraries (notably including glibc). inside any dynamically linked libraries (notably including glibc).