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authorvan Hauser <vh@thc.org>2020-04-10 22:33:11 +0200
committerGitHub <noreply@github.com>2020-04-10 22:33:11 +0200
commit3a509c61689112cc321c4c78f058014abff66c8a (patch)
tree741ceff34f03b66c6455fafdb3694ea4ba6f8c28 /docs
parent6dcbc4dff4bc9f5357bbf0c72ec6f3a0f937c2d0 (diff)
downloadafl++-3a509c61689112cc321c4c78f058014abff66c8a.tar.gz
LTO optimization, variable map size, autodictionary (#307)
* lto module clean-up * step 1/3 * step 1/3 completed * if tmp is ever made non-static * parts 2 and 3 - autodictionary is complete * variable map_size support * variable map size: changed overlooked functions * remove debug for autodict * 64 bit alignment of map size * fix review comments * force 64 bit alignment on both sides * typo
Diffstat (limited to 'docs')
-rw-r--r--docs/env_variables.md11
1 files changed, 8 insertions, 3 deletions
diff --git a/docs/env_variables.md b/docs/env_variables.md
index cd002145..7890da35 100644
--- a/docs/env_variables.md
+++ b/docs/env_variables.md
@@ -111,10 +111,15 @@ Then there are a few specific features that are only available in llvm_mode:
instrumentation which is 100% collision free (collisions are a big issue
in afl and afl-like instrumentations). This is performed by using
afl-clang-lto/afl-clang-lto++ instead of afl-clang-fast, but is only
- built if LLVM 9 or newer is used.
+ built if LLVM 11 or newer is used.
- None of these options are necessary to be used and are rather for manual
- use (which only ever the author of this LTO implementation will use ;-)
+ - AFL_LLVM_LTO_AUTODICTIONARY will generate a dictionary in the target
+ binary based on string compare and memory compare functions.
+ afl-fuzz will automatically get these transmitted when starting to
+ fuzz.
+
+ None of the following options are necessary to be used and are rather for
+ manual use (which only ever the author of this LTO implementation will use).
These are used if several seperated instrumentation are performed which
are then later combined.