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Windows: Enable CFG and SafeSEH linker security flags

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See:
https://docs.microsoft.com/en-us/windows/win32/secbp/control-flow-guard
https://docs.microsoft.com/en-us/cpp/build/reference/safeseh-image-has-safe-exception-handlers

Signed-off-by: Michael Schuster <michael@schuster.ms>
This commit is contained in:
Michael Schuster 2020-07-31 23:51:28 +02:00 committed by Kevin Ottens
parent bc5888e8e4
commit e02be629bb
1 changed files with 9 additions and 3 deletions
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12
src/CMakeLists.txt
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@ -34,9 +34,15 @@ if(NOT MSVC)
endif()
if(WIN32)
# Enable DEP & ASLR
set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} /nxcompat /dynamicbase")
set(CMAKE_SHARED_LINKER_FLAGS "${CMAKE_SHARED_LINKER_FLAGS} /nxcompat /dynamicbase")
# Enable DEP, ASLR and CFG
set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} /nxcompat /dynamicbase /guard:cf")
set(CMAKE_SHARED_LINKER_FLAGS "${CMAKE_SHARED_LINKER_FLAGS} /nxcompat /dynamicbase /guard:cf")
# x86 only: Enable SafeSEH
if(CMAKE_SYSTEM_PROCESSOR MATCHES "i686.*|i386.*|x86.*")
set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} /safeseh")
set(CMAKE_SHARED_LINKER_FLAGS "${CMAKE_SHARED_LINKER_FLAGS} /safeseh")
endif()
elseif(UNIX AND NOT APPLE)
set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -Wl,-z,relro -Wl,-z,now")
set(CMAKE_SHARED_LINKER_FLAGS "${CMAKE_SHARED_LINKER_FLAGS} -Wl,-z,relro -Wl,-z,now")