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llvm-project/compiler-rt/lib/scudo/CMakeLists.txt

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[CMake] Connect Compiler-RT targets to LLVM Runtimes directory This patch builds on LLVM r279776. In this patch I've done some cleanup and abstracted three common steps runtime components have in their CMakeLists files, and added a fourth. The three steps I abstract are: (1) Add a top-level target (i.e asan, msan, ...) (2) Set the target properties for sorting files in IDE generators (3) Make the compiler-rt target depend on the top-level target The new step is to check if a command named "runtime_register_component" is defined, and to call it with the component name. The runtime_register_component command is defined in llvm/runtimes/CMakeLists.txt, and presently just adds the component to a list of sub-components, which later gets used to generate target mappings. With this patch a new workflow for runtimes builds is supported. The new workflow when building runtimes from the LLVM runtimes directory is: > cmake [...] > ninja runtimes-configure > ninja asan The "runtimes-configure" target builds all the dependencies for configuring the runtimes projects, and runs CMake on the runtimes projects. Running the runtimes CMake generates a list of targets to bind into the top-level CMake so subsequent build invocations will have access to some of Compiler-RT's targets through the top-level build. Note: This patch does exclude some top-level targets from compiler-rt libraries because they either don't install files (sanitizer_common), or don't have a cooresponding `check` target (stats). llvm-svn: 279863
2016-08-27 04:52:22 +08:00
add_compiler_rt_component(scudo)
[sanitizer] Initial implementation of a Hardened Allocator Summary: This is an initial implementation of a Hardened Allocator based on Sanitizer Common's CombinedAllocator. It aims at mitigating heap based vulnerabilities by adding several features to the base allocator, while staying relatively fast. The following were implemented: - additional consistency checks on the allocation function parameters and on the heap chunks; - use of checksum protected chunk header, to detect corruption; - randomness to the allocator base; - delayed freelist (quarantine), to mitigate use after free and overall determinism. Additional mitigations are in the works. Reviewers: eugenis, aizatsky, pcc, krasin, vitalybuka, glider, dvyukov, kcc Subscribers: kubabrecka, filcab, llvm-commits Differential Revision: http://reviews.llvm.org/D20084 llvm-svn: 271968
2016-06-07 09:20:26 +08:00
include_directories(..)
set(SCUDO_CFLAGS ${SANITIZER_COMMON_CFLAGS})
[scudo] Separate hardware CRC32 routines Summary: As raised in D28304, enabling SSE 4.2 for the whole Scudo tree leads to the emission of SSE 4.2 instructions everywhere, while the runtime checks only applied to the CRC32 computing function. This patch separates the CRC32 function taking advantage of the hardware into its own file, and only enabled -msse4.2 for that file, if detected to be supported by the compiler. Another consequence of removing SSE4.2 globally is realizing that memcpy were not being optimized, which turned out to be due to the -fno-builtin in SANITIZER_COMMON_CFLAGS. So we now explicitely enable builtins for Scudo. The resulting assembly looks good, with some CALLs are introduced instead of the CRC32 code being inlined. Reviewers: kcc, mgorny, alekseyshl Subscribers: llvm-commits Differential Revision: https://reviews.llvm.org/D28417 llvm-svn: 291570
2017-01-11 00:39:36 +08:00
# SANITIZER_COMMON_CFLAGS include -fno-builtin, but we actually want builtins!
list(APPEND SCUDO_CFLAGS -fbuiltin)
[sanitizer] Initial implementation of a Hardened Allocator Summary: This is an initial implementation of a Hardened Allocator based on Sanitizer Common's CombinedAllocator. It aims at mitigating heap based vulnerabilities by adding several features to the base allocator, while staying relatively fast. The following were implemented: - additional consistency checks on the allocation function parameters and on the heap chunks; - use of checksum protected chunk header, to detect corruption; - randomness to the allocator base; - delayed freelist (quarantine), to mitigate use after free and overall determinism. Additional mitigations are in the works. Reviewers: eugenis, aizatsky, pcc, krasin, vitalybuka, glider, dvyukov, kcc Subscribers: kubabrecka, filcab, llvm-commits Differential Revision: http://reviews.llvm.org/D20084 llvm-svn: 271968
2016-06-07 09:20:26 +08:00
append_rtti_flag(OFF SCUDO_CFLAGS)
set(SCUDO_SOURCES
scudo_allocator.cpp
scudo_flags.cpp
[scudo] Separate hardware CRC32 routines Summary: As raised in D28304, enabling SSE 4.2 for the whole Scudo tree leads to the emission of SSE 4.2 instructions everywhere, while the runtime checks only applied to the CRC32 computing function. This patch separates the CRC32 function taking advantage of the hardware into its own file, and only enabled -msse4.2 for that file, if detected to be supported by the compiler. Another consequence of removing SSE4.2 globally is realizing that memcpy were not being optimized, which turned out to be due to the -fno-builtin in SANITIZER_COMMON_CFLAGS. So we now explicitely enable builtins for Scudo. The resulting assembly looks good, with some CALLs are introduced instead of the CRC32 code being inlined. Reviewers: kcc, mgorny, alekseyshl Subscribers: llvm-commits Differential Revision: https://reviews.llvm.org/D28417 llvm-svn: 291570
2017-01-11 00:39:36 +08:00
scudo_crc32.cpp
[sanitizer] Initial implementation of a Hardened Allocator Summary: This is an initial implementation of a Hardened Allocator based on Sanitizer Common's CombinedAllocator. It aims at mitigating heap based vulnerabilities by adding several features to the base allocator, while staying relatively fast. The following were implemented: - additional consistency checks on the allocation function parameters and on the heap chunks; - use of checksum protected chunk header, to detect corruption; - randomness to the allocator base; - delayed freelist (quarantine), to mitigate use after free and overall determinism. Additional mitigations are in the works. Reviewers: eugenis, aizatsky, pcc, krasin, vitalybuka, glider, dvyukov, kcc Subscribers: kubabrecka, filcab, llvm-commits Differential Revision: http://reviews.llvm.org/D20084 llvm-svn: 271968
2016-06-07 09:20:26 +08:00
scudo_interceptors.cpp
scudo_new_delete.cpp
scudo_termination.cpp
scudo_utils.cpp)
[scudo] Separate hardware CRC32 routines Summary: As raised in D28304, enabling SSE 4.2 for the whole Scudo tree leads to the emission of SSE 4.2 instructions everywhere, while the runtime checks only applied to the CRC32 computing function. This patch separates the CRC32 function taking advantage of the hardware into its own file, and only enabled -msse4.2 for that file, if detected to be supported by the compiler. Another consequence of removing SSE4.2 globally is realizing that memcpy were not being optimized, which turned out to be due to the -fno-builtin in SANITIZER_COMMON_CFLAGS. So we now explicitely enable builtins for Scudo. The resulting assembly looks good, with some CALLs are introduced instead of the CRC32 code being inlined. Reviewers: kcc, mgorny, alekseyshl Subscribers: llvm-commits Differential Revision: https://reviews.llvm.org/D28417 llvm-svn: 291570
2017-01-11 00:39:36 +08:00
if (COMPILER_RT_HAS_MSSE4_2_FLAG)
set_source_files_properties(scudo_crc32.cpp PROPERTIES COMPILE_FLAGS -msse4.2)
endif()
[sanitizer] Initial implementation of a Hardened Allocator Summary: This is an initial implementation of a Hardened Allocator based on Sanitizer Common's CombinedAllocator. It aims at mitigating heap based vulnerabilities by adding several features to the base allocator, while staying relatively fast. The following were implemented: - additional consistency checks on the allocation function parameters and on the heap chunks; - use of checksum protected chunk header, to detect corruption; - randomness to the allocator base; - delayed freelist (quarantine), to mitigate use after free and overall determinism. Additional mitigations are in the works. Reviewers: eugenis, aizatsky, pcc, krasin, vitalybuka, glider, dvyukov, kcc Subscribers: kubabrecka, filcab, llvm-commits Differential Revision: http://reviews.llvm.org/D20084 llvm-svn: 271968
2016-06-07 09:20:26 +08:00
if(COMPILER_RT_HAS_SCUDO)
foreach(arch ${SCUDO_SUPPORTED_ARCH})
add_compiler_rt_runtime(clang_rt.scudo
STATIC
ARCHS ${arch}
SOURCES ${SCUDO_SOURCES}
$<TARGET_OBJECTS:RTInterception.${arch}>
$<TARGET_OBJECTS:RTSanitizerCommonNoTermination.${arch}>
$<TARGET_OBJECTS:RTSanitizerCommonLibc.${arch}>
CFLAGS ${SCUDO_CFLAGS}
PARENT_TARGET scudo)
endforeach()
endif()