diff options
| -rw-r--r-- | llvm/docs/ScudoHardenedAllocator.rst | 19 |
1 files changed, 11 insertions, 8 deletions
diff --git a/llvm/docs/ScudoHardenedAllocator.rst b/llvm/docs/ScudoHardenedAllocator.rst index e00c8324e55..43d964fcb20 100644 --- a/llvm/docs/ScudoHardenedAllocator.rst +++ b/llvm/docs/ScudoHardenedAllocator.rst @@ -94,7 +94,7 @@ functions. You may also build Scudo like this: -.. code:: +.. code:: none cd $LLVM/projects/compiler-rt/lib clang++ -fPIC -std=c++11 -msse4.2 -O2 -I. scudo/*.cpp \ @@ -103,7 +103,7 @@ You may also build Scudo like this: and then use it with existing binaries as follows: -.. code:: +.. code:: none LD_PRELOAD=`pwd`/scudo-allocator.so ./a.out @@ -124,16 +124,16 @@ can be assigned in the same string, separated by colons. For example, using the environment variable: -.. code:: +.. code:: none - SCUDO_OPTIONS="DeleteSizeMismatch=1:QuarantineSizeMb=16" ./a.out + SCUDO_OPTIONS="DeleteSizeMismatch=1:QuarantineSizeKb=64" ./a.out Or using the function: -.. code:: +.. code:: cpp extern "C" const char *__scudo_default_options() { - return "DeleteSizeMismatch=1:QuarantineSizeMb=16"; + return "DeleteSizeMismatch=1:QuarantineSizeKb=64"; } @@ -142,11 +142,14 @@ The following options are available: +-----------------------------+----------------+----------------+------------------------------------------------+ | Option | 64-bit default | 32-bit default | Description | +-----------------------------+----------------+----------------+------------------------------------------------+ -| QuarantineSizeMb | 64 | 16 | The size (in Mb) of quarantine used to delay | +| QuarantineSizeKb | 256 | 64 | The size (in Kb) of quarantine used to delay | | | | | the actual deallocation of chunks. Lower value | | | | | may reduce memory usage but decrease the | | | | | effectiveness of the mitigation; a negative | -| | | | value will fallback to a default of 64Mb. | +| | | | value will fallback to the defaults. | ++-----------------------------+----------------+----------------+------------------------------------------------+ +| QuarantineChunksUpToSize | 2048 | 512 | Size (in bytes) up to which chunks can be | +| | | | quarantined. | +-----------------------------+----------------+----------------+------------------------------------------------+ | ThreadLocalQuarantineSizeKb | 1024 | 256 | The size (in Kb) of per-thread cache use to | | | | | offload the global quarantine. Lower value may | |
