diff --git a/clang/lib/Driver/ToolChains/CommonArgs.cpp b/clang/lib/Driver/ToolChains/CommonArgs.cpp --- a/clang/lib/Driver/ToolChains/CommonArgs.cpp +++ b/clang/lib/Driver/ToolChains/CommonArgs.cpp @@ -942,10 +942,7 @@ SharedRuntimes.push_back("ubsan_standalone"); } if (SanArgs.needsScudoRt() && SanArgs.linkRuntimes()) { - if (SanArgs.requiresMinimalRuntime()) - SharedRuntimes.push_back("scudo_minimal"); - else - SharedRuntimes.push_back("scudo"); + SharedRuntimes.push_back("scudo_standalone"); } if (SanArgs.needsTsanRt() && SanArgs.linkRuntimes()) SharedRuntimes.push_back("tsan"); @@ -1042,15 +1039,9 @@ RequiredSymbols.push_back("__sanitizer_stats_register"); } if (!SanArgs.needsSharedRt() && SanArgs.needsScudoRt() && SanArgs.linkRuntimes()) { - if (SanArgs.requiresMinimalRuntime()) { - StaticRuntimes.push_back("scudo_minimal"); - if (SanArgs.linkCXXRuntimes()) - StaticRuntimes.push_back("scudo_cxx_minimal"); - } else { - StaticRuntimes.push_back("scudo"); - if (SanArgs.linkCXXRuntimes()) - StaticRuntimes.push_back("scudo_cxx"); - } + StaticRuntimes.push_back("scudo_standalone"); + if (SanArgs.linkCXXRuntimes()) + StaticRuntimes.push_back("scudo_standalone_cxx"); } } diff --git a/clang/test/Driver/fuchsia.c b/clang/test/Driver/fuchsia.c --- a/clang/test/Driver/fuchsia.c +++ b/clang/test/Driver/fuchsia.c @@ -183,7 +183,7 @@ // CHECK-SCUDO-X86: "-resource-dir" "[[RESOURCE_DIR:[^"]+]]" // CHECK-SCUDO-X86: "-fsanitize=safe-stack,scudo" // CHECK-SCUDO-X86: "-pie" -// CHECK-SCUDO-X86: "[[RESOURCE_DIR]]{{/|\\\\}}lib{{/|\\\\}}x86_64-unknown-fuchsia{{/|\\\\}}libclang_rt.scudo.so" +// CHECK-SCUDO-X86: "[[RESOURCE_DIR]]{{/|\\\\}}lib{{/|\\\\}}fuchsia{{/|\\\\}}libclang_rt.scudo_standalone-x86_64.so" // RUN: %clang -### %s --target=aarch64-unknown-fuchsia \ // RUN: -fsanitize=scudo 2>&1 \ @@ -193,7 +193,7 @@ // CHECK-SCUDO-AARCH64: "-resource-dir" "[[RESOURCE_DIR:[^"]+]]" // CHECK-SCUDO-AARCH64: "-fsanitize=shadow-call-stack,scudo" // CHECK-SCUDO-AARCH64: "-pie" -// CHECK-SCUDO-AARCH64: "[[RESOURCE_DIR]]{{/|\\\\}}lib{{/|\\\\}}aarch64-unknown-fuchsia{{/|\\\\}}libclang_rt.scudo.so" +// CHECK-SCUDO-AARCH64: "[[RESOURCE_DIR]]{{/|\\\\}}lib{{/|\\\\}}fuchsia{{/|\\\\}}libclang_rt.scudo_standalone-aarch64.so" // RUN: %clang -### %s --target=x86_64-unknown-fuchsia \ // RUN: -fsanitize=scudo -fPIC -shared 2>&1 \ @@ -202,7 +202,7 @@ // RUN: | FileCheck %s -check-prefix=CHECK-SCUDO-SHARED // CHECK-SCUDO-SHARED: "-resource-dir" "[[RESOURCE_DIR:[^"]+]]" // CHECK-SCUDO-SHARED: "-fsanitize=safe-stack,scudo" -// CHECK-SCUDO-SHARED: "[[RESOURCE_DIR]]{{/|\\\\}}lib{{/|\\\\}}x86_64-unknown-fuchsia{{/|\\\\}}libclang_rt.scudo.so" +// CHECK-SCUDO-SHARED: "[[RESOURCE_DIR]]{{/|\\\\}}lib{{/|\\\\}}fuchsia{{/|\\\\}}libclang_rt.scudo_standalone-x86_64.so" // RUN: %clang -### %s --target=aarch64-unknown-fuchsia \ // RUN: -fsanitize=leak 2>&1 \ diff --git a/clang/test/Driver/sanitizer-ld.c b/clang/test/Driver/sanitizer-ld.c --- a/clang/test/Driver/sanitizer-ld.c +++ b/clang/test/Driver/sanitizer-ld.c @@ -852,23 +852,12 @@ // RUN: | FileCheck --check-prefix=CHECK-SCUDO-LINUX %s // CHECK-SCUDO-LINUX: "{{.*}}ld{{(.exe)?}}" // CHECK-SCUDO-LINUX: "-pie" -// CHECK-SCUDO-LINUX: "--whole-archive" "{{.*}}libclang_rt.scudo-i386.a" "--no-whole-archive" +// CHECK-SCUDO-LINUX: "--whole-archive" "{{.*}}libclang_rt.scudo_standalone-i386.a" "--no-whole-archive" // CHECK-SCUDO-LINUX-NOT: "-lstdc++" // CHECK-SCUDO-LINUX: "-lpthread" // CHECK-SCUDO-LINUX: "-ldl" // CHECK-SCUDO-LINUX: "-lresolv" -// RUN: %clang -fsanitize=scudo -fsanitize-minimal-runtime -### %s 2>&1 \ -// RUN: --target=i386-unknown-linux -fuse-ld=ld \ -// RUN: -resource-dir=%S/Inputs/resource_dir \ -// RUN: --sysroot=%S/Inputs/basic_linux_tree \ -// RUN: | FileCheck --check-prefix=CHECK-SCUDO-MINIMAL-LINUX %s -// CHECK-SCUDO-MINIMAL-LINUX: "{{.*}}ld{{(.exe)?}}" -// CHECK-SCUDO-MINIMAL-LINUX: "-pie" -// CHECK-SCUDO-MINIMAL-LINUX: "--whole-archive" "{{.*}}libclang_rt.scudo_minimal-i386.a" "--no-whole-archive" -// CHECK-SCUDO-MINIMAL-LINUX: "-lpthread" -// CHECK-SCUDO-MINIMAL-LINUX: "-lresolv" - // RUN: %clang -### %s -o %t.so -shared 2>&1 \ // RUN: --target=i386-unknown-linux -fuse-ld=ld -fsanitize=scudo -shared-libsan \ // RUN: -resource-dir=%S/Inputs/resource_dir \ @@ -877,8 +866,8 @@ // // CHECK-SCUDO-SHARED-LINUX: "{{(.*[^-.0-9A-Z_a-z])?}}ld{{(.exe)?}}" // CHECK-SCUDO-SHARED-LINUX-NOT: "-lc" -// CHECK-SCUDO-SHARED-LINUX-NOT: libclang_rt.scudo-i386.a" -// CHECK-SCUDO-SHARED-LINUX: libclang_rt.scudo-i386.so" +// CHECK-SCUDO-SHARED-LINUX-NOT: libclang_rt.scudo_standalone-i386.a" +// CHECK-SCUDO-SHARED-LINUX: libclang_rt.scudo_standalone-i386.so" // CHECK-SCUDO-SHARED-LINUX-NOT: "-lpthread" // CHECK-SCUDO-SHARED-LINUX-NOT: "-lrt" // CHECK-SCUDO-SHARED-LINUX-NOT: "-ldl" @@ -896,7 +885,7 @@ // CHECK-SCUDO-ANDROID: "-pie" // CHECK-SCUDO-ANDROID-NOT: "-lpthread" // CHECK-SCUDO-ANDROID-NOT: "-lresolv" -// CHECK-SCUDO-ANDROID: libclang_rt.scudo-arm-android.so" +// CHECK-SCUDO-ANDROID: libclang_rt.scudo_standalone-arm-android.so" // CHECK-SCUDO-ANDROID-NOT: "-lpthread" // CHECK-SCUDO-ANDROID-NOT: "-lresolv" @@ -907,7 +896,7 @@ // RUN: | FileCheck --check-prefix=CHECK-SCUDO-ANDROID-STATIC %s // CHECK-SCUDO-ANDROID-STATIC: "{{(.*[^.0-9A-Z_a-z])?}}ld.lld{{(.exe)?}}" // CHECK-SCUDO-ANDROID-STATIC: "-pie" -// CHECK-SCUDO-ANDROID-STATIC: "--whole-archive" "{{.*}}libclang_rt.scudo-arm-android.a" "--no-whole-archive" +// CHECK-SCUDO-ANDROID-STATIC: "--whole-archive" "{{.*}}libclang_rt.scudo_standalone-arm-android.a" "--no-whole-archive" // CHECK-SCUDO-ANDROID-STATIC-NOT: "-lstdc++" // CHECK-SCUDO-ANDROID-STATIC-NOT: "-lpthread" // CHECK-SCUDO-ANDROID-STATIC-NOT: "-lrt" diff --git a/compiler-rt/cmake/config-ix.cmake b/compiler-rt/cmake/config-ix.cmake --- a/compiler-rt/cmake/config-ix.cmake +++ b/compiler-rt/cmake/config-ix.cmake @@ -619,9 +619,6 @@ list_intersect(CFI_SUPPORTED_ARCH ALL_CFI_SUPPORTED_ARCH SANITIZER_COMMON_SUPPORTED_ARCH) - list_intersect(SCUDO_SUPPORTED_ARCH - ALL_SCUDO_SUPPORTED_ARCH - SANITIZER_COMMON_SUPPORTED_ARCH) list_intersect(SCUDO_STANDALONE_SUPPORTED_ARCH ALL_SCUDO_STANDALONE_SUPPORTED_ARCH SANITIZER_COMMON_SUPPORTED_ARCH) @@ -661,7 +658,6 @@ filter_available_targets(SAFESTACK_SUPPORTED_ARCH ${ALL_SAFESTACK_SUPPORTED_ARCH}) filter_available_targets(CFI_SUPPORTED_ARCH ${ALL_CFI_SUPPORTED_ARCH}) - filter_available_targets(SCUDO_SUPPORTED_ARCH ${ALL_SCUDO_SUPPORTED_ARCH}) filter_available_targets(SCUDO_STANDALONE_SUPPORTED_ARCH ${ALL_SCUDO_STANDALONE_SUPPORTED_ARCH}) filter_available_targets(XRAY_SUPPORTED_ARCH ${ALL_XRAY_SUPPORTED_ARCH}) filter_available_targets(SHADOWCALLSTACK_SUPPORTED_ARCH @@ -701,7 +697,7 @@ endif() message(STATUS "Compiler-RT supported architectures: ${COMPILER_RT_SUPPORTED_ARCH}") -set(ALL_SANITIZERS asan;dfsan;msan;hwasan;tsan;safestack;cfi;scudo;ubsan_minimal;gwp_asan) +set(ALL_SANITIZERS asan;dfsan;msan;hwasan;tsan;safestack;cfi;ubsan_minimal;gwp_asan) set(COMPILER_RT_SANITIZERS_TO_BUILD all CACHE STRING "sanitizers to build if supported on the target (all;${ALL_SANITIZERS})") list_replace(COMPILER_RT_SANITIZERS_TO_BUILD all "${ALL_SANITIZERS}") @@ -830,13 +826,6 @@ set(COMPILER_RT_HAS_SCUDO_STANDALONE FALSE) endif() -if (COMPILER_RT_HAS_SANITIZER_COMMON AND SCUDO_SUPPORTED_ARCH AND - OS_NAME MATCHES "Linux|Fuchsia") - set(COMPILER_RT_HAS_SCUDO TRUE) -else() - set(COMPILER_RT_HAS_SCUDO FALSE) -endif() - if (COMPILER_RT_HAS_SANITIZER_COMMON AND XRAY_SUPPORTED_ARCH AND OS_NAME MATCHES "Darwin|Linux|FreeBSD|NetBSD|Fuchsia") set(COMPILER_RT_HAS_XRAY TRUE) diff --git a/compiler-rt/lib/CMakeLists.txt b/compiler-rt/lib/CMakeLists.txt --- a/compiler-rt/lib/CMakeLists.txt +++ b/compiler-rt/lib/CMakeLists.txt @@ -24,12 +24,13 @@ function(compiler_rt_build_runtime runtime) string(TOUPPER ${runtime} runtime_uppercase) if(COMPILER_RT_HAS_${runtime_uppercase}) - add_subdirectory(${runtime}) if(${runtime} STREQUAL tsan) add_subdirectory(tsan/dd) endif() - if(${runtime} STREQUAL scudo) + if(${runtime} STREQUAL scudo_standalone) add_subdirectory(scudo/standalone) + else() + add_subdirectory(${runtime}) endif() endif() endfunction() @@ -48,6 +49,8 @@ foreach(sanitizer ${COMPILER_RT_SANITIZERS_TO_BUILD}) compiler_rt_build_runtime(${sanitizer}) endforeach() + + compiler_rt_build_runtime(scudo_standalone) endif() if(COMPILER_RT_BUILD_PROFILE AND COMPILER_RT_HAS_PROFILE) diff --git a/compiler-rt/test/CMakeLists.txt b/compiler-rt/test/CMakeLists.txt --- a/compiler-rt/test/CMakeLists.txt +++ b/compiler-rt/test/CMakeLists.txt @@ -19,6 +19,8 @@ # BlocksRuntime (and most of builtins) testsuites are not yet ported to lit. # add_subdirectory(BlocksRuntime) +add_subdirectory(scudo/standalone) + set(SANITIZER_COMMON_LIT_TEST_DEPS) if(COMPILER_RT_BUILD_PROFILE AND COMPILER_RT_HAS_PROFILE) diff --git a/compiler-rt/test/scudo/CMakeLists.txt b/compiler-rt/test/scudo/CMakeLists.txt deleted file mode 100644 --- a/compiler-rt/test/scudo/CMakeLists.txt +++ /dev/null @@ -1,35 +0,0 @@ -set(SCUDO_LIT_SOURCE_DIR ${CMAKE_CURRENT_SOURCE_DIR}) -set(SCUDO_LIT_BINARY_DIR ${CMAKE_CURRENT_BINARY_DIR}) - -set(SCUDO_TESTSUITES) - -set(SCUDO_TEST_DEPS ${SANITIZER_COMMON_LIT_TEST_DEPS}) -if(NOT COMPILER_RT_STANDALONE_BUILD) - list(APPEND SCUDO_TEST_DEPS scudo) -endif() - -configure_lit_site_cfg( - ${CMAKE_CURRENT_SOURCE_DIR}/lit.site.cfg.py.in - ${CMAKE_CURRENT_BINARY_DIR}/lit.site.cfg.py - ) - -set(SCUDO_TEST_ARCH ${SCUDO_SUPPORTED_ARCH}) -foreach(arch ${SCUDO_TEST_ARCH}) - set(SCUDO_TEST_TARGET_ARCH ${arch}) - string(TOLOWER "-${arch}" SCUDO_TEST_CONFIG_SUFFIX) - get_test_cc_for_arch(${arch} SCUDO_TEST_TARGET_CC SCUDO_TEST_TARGET_CFLAGS) - string(TOUPPER ${arch} ARCH_UPPER_CASE) - set(CONFIG_NAME ${ARCH_UPPER_CASE}${OS_NAME}Config) - - configure_lit_site_cfg( - ${CMAKE_CURRENT_SOURCE_DIR}/lit.site.cfg.py.in - ${CMAKE_CURRENT_BINARY_DIR}/${CONFIG_NAME}/lit.site.cfg.py) - list(APPEND SCUDO_TESTSUITES ${CMAKE_CURRENT_BINARY_DIR}/${CONFIG_NAME}) -endforeach() - -add_subdirectory(standalone) - -add_lit_testsuite(check-scudo "Running the Scudo Hardened Allocator tests" - ${SCUDO_TESTSUITES} - DEPENDS ${SCUDO_TEST_DEPS}) -set_target_properties(check-scudo PROPERTIES FOLDER "Compiler-RT Misc") diff --git a/llvm/docs/GwpAsan.rst b/llvm/docs/GwpAsan.rst --- a/llvm/docs/GwpAsan.rst +++ b/llvm/docs/GwpAsan.rst @@ -143,9 +143,10 @@ default visibility. This will override the compile time define; - Depending on allocator support (Scudo has support for this mechanism): Through - the environment variable ``GWP_ASAN_OPTIONS``, containing the options string - to be parsed. Options defined this way will override any definition made - through ``__gwp_asan_default_options``. + an environment variable, containing the options string to be parsed. In Scudo, + this is through `SCUDO_OPTIONS=GWP_ASAN_${OPTION_NAME}=${VALUE}` (e.g. + `SCUDO_OPTIONS=GWP_ASAN_SampleRate=100`). Options defined this way will + override any definition made through ``__gwp_asan_default_options``. The options string follows a syntax similar to ASan, where distinct options can be assigned in the same string, separated by colons. @@ -171,17 +172,12 @@ +----------------------------+---------+--------------------------------------------------------------------------------+ | Enabled | true | Is GWP-ASan enabled? | +----------------------------+---------+--------------------------------------------------------------------------------+ -| PerfectlyRightAlign | false | When allocations are right-aligned, should we perfectly align them up to the | -| | | page boundary? By default (false), we round up allocation size to the nearest | -| | | power of two (2, 4, 8, 16) up to a maximum of 16-byte alignment for | -| | | performance reasons. Setting this to true can find single byte | -| | | buffer-overflows at the cost of performance, and may be incompatible with | -| | | some architectures. | +| help | false | Print a summart of the available options. | +----------------------------+---------+--------------------------------------------------------------------------------+ | MaxSimultaneousAllocations | 16 | Number of simultaneously-guarded allocations available in the pool. | +----------------------------+---------+--------------------------------------------------------------------------------+ | SampleRate | 5000 | The probability (1 / SampleRate) that a page is selected for GWP-ASan | -| | | sampling. Sample rates up to (2^31 - 1) are supported. | +| | | sampling. Sample rates up to (2^30 - 1) are supported. | +----------------------------+---------+--------------------------------------------------------------------------------+ | InstallSignalHandlers | true | Install GWP-ASan signal handlers for SIGSEGV during dynamic loading. This | | | | allows better error reports by providing stack traces for allocation and | @@ -216,9 +212,9 @@ .. code:: console - $ clang++ -fsanitize=scudo -std=c++17 -g buggy_code.cpp - $ for i in `seq 1 200`; do - GWP_ASAN_OPTIONS="SampleRate=100" ./a.out > /dev/null; + $ clang++ -fsanitize=scudo -g buggy_code.cpp + $ for i in `seq 1 500`; do + SCUDO_OPTIONS="GWP_ASAN_SampleRate=100" ./a.out > /dev/null; done | | *** GWP-ASan detected a memory error ***