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fix docs

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vanhauser-thc
2024-01-22 10:52:22 +01:00
parent 3046c80cd5
commit 9cefc4d3d4
3 changed files with 8 additions and 8 deletions
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docs/resources/1_instrument_target.drawio.svg
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instrumentation/README.lto.md
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@ -2,7 +2,7 @@
## TL;DR: ## TL;DR:
This version requires a LLVM 11 or newer. This version requires a LLVM 12 or newer.
1. Use afl-clang-lto/afl-clang-lto++ because the resulting binaries run 1. Use afl-clang-lto/afl-clang-lto++ because the resulting binaries run
slightly faster and give better coverage. slightly faster and give better coverage.
@ -10,7 +10,7 @@ This version requires a LLVM 11 or newer.
2. You can use it together with COMPCOV, COMPLOG and the instrument file 2. You can use it together with COMPCOV, COMPLOG and the instrument file
listing features. listing features.
3. It only works with LLVM 11 or newer. 3. It only works with LLVM 12 or newer.
4. AUTODICTIONARY feature (see below) 4. AUTODICTIONARY feature (see below)
@ -60,7 +60,7 @@ AUTODICTIONARY: 11 strings found
[+] Instrumented 12071 locations with no collisions (on average 1046 collisions would be in afl-gcc/afl-clang-fast) (non-hardened mode). [+] Instrumented 12071 locations with no collisions (on average 1046 collisions would be in afl-gcc/afl-clang-fast) (non-hardened mode).
``` ```
## Getting LLVM 11+ ## Getting LLVM 12+
### Installing llvm ### Installing llvm
@ -73,7 +73,7 @@ chmod +x llvm.sh
sudo ./llvm.sh 15 all sudo ./llvm.sh 15 all
``` ```
LLVM 11 to 16 should be available in all current Linux repositories. LLVM 12 to 18 should be available in all current Linux repositories.
## How to build afl-clang-lto ## How to build afl-clang-lto
@ -277,7 +277,7 @@ AS=llvm-as ...
afl-clang-lto is still work in progress. afl-clang-lto is still work in progress.
Known issues: Known issues:
* Anything that LLVM 11+ cannot compile, afl-clang-lto cannot compile either - * Anything that LLVM 12+ cannot compile, afl-clang-lto cannot compile either -
obviously. obviously.
* Anything that does not compile with LTO, afl-clang-lto cannot compile either - * Anything that does not compile with LTO, afl-clang-lto cannot compile either -
obviously. obviously.
@ -319,7 +319,7 @@ Still more problems came up though as this only works without bugs from LLVM 9
onwards, and with high optimization the link optimization ruins the instrumented onwards, and with high optimization the link optimization ruins the instrumented
control flow graph. control flow graph.
This is all now fixed with LLVM 11+. The llvm's own linker is now able to load This is all now fixed with LLVM 12+. The llvm's own linker is now able to load
passes and this bypasses all problems we had. passes and this bypasses all problems we had.
Happy end :) Happy end :)

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src/afl-fuzz.c
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@ -165,7 +165,7 @@ static void usage(u8 *argv0, int more_help) {
"\n" "\n"
"Mutator settings:\n" "Mutator settings:\n"
" -a - target input format, \"text\" or \"binary\" (default: " " -a type - target input format, \"text\" or \"binary\" (default: "
"generic)\n" "generic)\n"
" -g minlength - set min length of generated fuzz input (default: 1)\n" " -g minlength - set min length of generated fuzz input (default: 1)\n"
" -G maxlength - set max length of generated fuzz input (default: " " -G maxlength - set max length of generated fuzz input (default: "