forked from wownero/wownero
Merge pull request #2993
776b44f1
Add misc hardening flags to the cmake machinery (moneromooo-monero)
release-v0.4.0.1
commit
d08aee7a7e
@ -0,0 +1,14 @@
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#ifdef __CLASSIC_C__
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int main()
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{
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int ac;
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char* av[];
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#else
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int main(int ac, char* av[])
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{
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#endif
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if (ac > 1000) {
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return *av[0];
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}
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return 0;
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}
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@ -0,0 +1,47 @@
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include(CheckCCompilerFlag)
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macro(CHECK_LINKER_FLAG flag VARIABLE)
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if(NOT DEFINED "${VARIABLE}")
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if(NOT CMAKE_REQUIRED_QUIET)
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message(STATUS "Looking for ${flag} linker flag")
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endif()
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set(_cle_source ${CMAKE_SOURCE_DIR}/cmake/CheckLinkerFlag.c)
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set(saved_CMAKE_C_FLAGS ${CMAKE_C_FLAGS})
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set(CMAKE_C_FLAGS "${flag}")
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try_compile(${VARIABLE}
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${CMAKE_BINARY_DIR}
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${_cle_source}
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COMPILE_DEFINITIONS ${CMAKE_REQUIRED_DEFINITIONS} ${flag}
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CMAKE_FLAGS
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OUTPUT_VARIABLE OUTPUT)
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unset(_cle_source)
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set(CMAKE_C_FLAGS ${saved_CMAKE_C_FLAGS})
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unset(saved_CMAKE_C_FLAGS)
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if ("${OUTPUT}" MATCHES "warning.*ignored")
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set(${VARIABLE} 0)
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endif()
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if(${VARIABLE})
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if(NOT CMAKE_REQUIRED_QUIET)
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message(STATUS "Looking for ${flag} linker flag - found")
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endif()
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set(${VARIABLE} 1 CACHE INTERNAL "Have linker flag ${flag}")
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file(APPEND ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeOutput.log
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"Determining if the ${flag} linker flag is supported "
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"passed with the following output:\n"
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"${OUTPUT}\n\n")
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else()
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if(NOT CMAKE_REQUIRED_QUIET)
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message(STATUS "Looking for ${flag} linker flag - not found")
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endif()
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set(${VARIABLE} "" CACHE INTERNAL "Have linker flag ${flag}")
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file(APPEND ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeError.log
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"Determining if the ${flag} linker flag is suppored "
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"failed with the following output:\n"
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"${OUTPUT}\n\n")
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endif()
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endif()
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endmacro()
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