[clang] ab1a599 - Make -fsanitize=scudo use scudo_standalone. Delete check-scudo.
Mitch Phillips via cfe-commits
cfe-commits at lists.llvm.org
Tue Nov 22 12:08:51 PST 2022
Author: Mitch Phillips
Date: 2022-11-22T12:08:30-08:00
New Revision: ab1a5991fe765d71c0f3262f25726d6b4d66a545
URL: https://github.com/llvm/llvm-project/commit/ab1a5991fe765d71c0f3262f25726d6b4d66a545
DIFF: https://github.com/llvm/llvm-project/commit/ab1a5991fe765d71c0f3262f25726d6b4d66a545.diff
LOG: Make -fsanitize=scudo use scudo_standalone. Delete check-scudo.
Leaves the implementation and tests files in-place for right now, but
deletes the ability to build the old sanitizer-common based scudo. This
has been on life-support for a long time, and the newer scudo_standalone
is much better supported and maintained.
Also patches up some GWP-ASan wording, primarily related to the fact
that -fsanitize=scudo now is scudo_standalone, and therefore the way to
reference the GWP-ASan options through the environment variable has
changed.
Future follow-up patches will delete the original scudo, and migrate all
its tests over to be part of the scudo_standalone test suite.
Reviewed By: vitalybuka
Differential Revision: https://reviews.llvm.org/D138157
Added:
Modified:
clang/lib/Driver/ToolChains/CommonArgs.cpp
clang/test/Driver/fuchsia.c
clang/test/Driver/sanitizer-ld.c
compiler-rt/cmake/config-ix.cmake
compiler-rt/lib/CMakeLists.txt
compiler-rt/test/CMakeLists.txt
llvm/docs/GwpAsan.rst
Removed:
compiler-rt/test/scudo/CMakeLists.txt
################################################################################
diff --git a/clang/lib/Driver/ToolChains/CommonArgs.cpp b/clang/lib/Driver/ToolChains/CommonArgs.cpp
index 30fca3a4c0590..d45721b0bd3b6 100644
--- a/clang/lib/Driver/ToolChains/CommonArgs.cpp
+++ b/clang/lib/Driver/ToolChains/CommonArgs.cpp
@@ -941,10 +941,7 @@ collectSanitizerRuntimes(const ToolChain &TC, const ArgList &Args,
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");
@@ -1041,15 +1038,9 @@ collectSanitizerRuntimes(const ToolChain &TC, const ArgList &Args,
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
index 099a88c2e4e36..339fd92309796 100644
--- 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
index 1c9b6d783be3d..e58a6e51547ff 100644
--- 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
index f6190ee60e3c3..e16236fbb1b2d 100644
--- a/compiler-rt/cmake/config-ix.cmake
+++ b/compiler-rt/cmake/config-ix.cmake
@@ -619,9 +619,6 @@ if(APPLE)
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 @@ else()
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 @@ if(COMPILER_RT_SUPPORTED_ARCH)
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 @@ else()
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
index 18eed2446dc61..6b55b5f0f7705 100644
--- a/compiler-rt/lib/CMakeLists.txt
+++ b/compiler-rt/lib/CMakeLists.txt
@@ -24,12 +24,13 @@ endif()
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 @@ if(COMPILER_RT_BUILD_SANITIZERS)
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
index e905b606c51c6..42eccb962bb95 100644
--- a/compiler-rt/test/CMakeLists.txt
+++ b/compiler-rt/test/CMakeLists.txt
@@ -19,6 +19,8 @@ configure_compiler_rt_lit_site_cfg(
# 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
index 3a1982add9c49..0000000000000
--- 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 ${SCUDO_TEST_DEPS})
-set_target_properties(check-scudo PROPERTIES FOLDER "Compiler-RT Misc")
diff --git a/llvm/docs/GwpAsan.rst b/llvm/docs/GwpAsan.rst
index 647c2a038a5a9..293f75d71ac3f 100644
--- a/llvm/docs/GwpAsan.rst
+++ b/llvm/docs/GwpAsan.rst
@@ -143,9 +143,10 @@ several aspects of GWP-ASan to be configured through the following methods:
default visibility. This will override the compile time define;
- Depending on allocator support (Scudo has support for this mechanism): Through
- the environment variable ``GWP_ASAN_OPTIONS``, containing the options string
- to be parsed. Options defined this way will override any definition made
- through ``__gwp_asan_default_options``.
+ an environment variable, containing the options string to be parsed. In Scudo,
+ this is through `SCUDO_OPTIONS=GWP_ASAN_${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.
@@ -216,9 +217,9 @@ and provide us a detailed error report:
.. 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 ***
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