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Diffstat (limited to 'docs')
| -rw-r--r-- | docs/Changelog.md | 1 | ||||
| -rw-r--r-- | docs/env_variables.md | 5 |
2 files changed, 6 insertions, 0 deletions
diff --git a/docs/Changelog.md b/docs/Changelog.md index 9c9a3976..d8e96bf3 100644 --- a/docs/Changelog.md +++ b/docs/Changelog.md @@ -35,6 +35,7 @@ sending a mail to <afl-users+subscribe@googlegroups.com>. - Removed automatic linking with -lc++ for LTO mode - utils/aflpp_driver/aflpp_qemu_driver_hook fixed to work with qemu mode - add -d (add dead fuzzer stats) to afl-whatsup + - add thread safe counters for LLVM CLASSIC (set AFL_LLVM_THREADSAFE_INST) ### Version ++3.12c (release) - afl-fuzz: diff --git a/docs/env_variables.md b/docs/env_variables.md index 0100ffac..d9a774aa 100644 --- a/docs/env_variables.md +++ b/docs/env_variables.md @@ -231,6 +231,11 @@ Then there are a few specific features that are only available in instrumentatio See [instrumentation/README.instrument_list.md](../instrumentation/README.instrument_list.md) for more information. +### Thread safe instrumentation counters (in mode LLVM CLASSIC) + - Setting `AFL_LLVM_THREADSAFE_INST` will inject code that implements thread safe counters. + The overhead is a bit higher compared to the older non-thread safe case. + `AFL_LLVM_NOT_ZERO` and `AFL_LLVM_SKIP_NEVERZERO` are supported (see below). + ### NOT_ZERO - Setting `AFL_LLVM_NOT_ZERO=1` during compilation will use counters |