mirror of
https://github.com/intel/linux-sgx
synced 2026-06-08 14:49:32 +00:00
Li, Xun
d10cabebb5
Added new APIs in sgx_uae_service.h and sgx_ukey_exchange.h to support ECDSA quote based remote attestation. The set of legacy APIs supports EPID only and the set of new APIs supports ECDSA quotes. Enhanced Edger8r with structure deep-copy feature. Fixed bugs. Signed-off-by: Li, Xun <xun.li@intel.com>
69 lines
2.6 KiB
CMake
69 lines
2.6 KiB
CMake
#
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# Helper macro allowing to check if the given flags are supported
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# by the underlying build tool
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#
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# If the flag(s) is/are supported, they will be appended to the string identified by RESULT_VAR
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#
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# Usage:
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# usFunctionCheckCompilerFlags(FLAGS_TO_CHECK VALID_FLAGS_VAR)
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#
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# Example:
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#
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# set(myflags)
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# usFunctionCheckCompilerFlags("-fprofile-arcs" myflags)
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# message(1-myflags:${myflags})
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# usFunctionCheckCompilerFlags("-fauto-bugfix" myflags)
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# message(2-myflags:${myflags})
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# usFunctionCheckCompilerFlags("-Wall" myflags)
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# message(1-myflags:${myflags})
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#
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# The output will be:
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# 1-myflags: -fprofile-arcs
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# 2-myflags: -fprofile-arcs
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# 3-myflags: -fprofile-arcs -Wall
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include(CheckCXXCompilerFlag)
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function(usFunctionCheckCompilerFlags FLAG_TO_TEST RESULT_VAR)
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if(FLAG_TO_TEST STREQUAL "")
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message(FATAL_ERROR "FLAG_TO_TEST shouldn't be empty")
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endif()
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# Save the contents of RESULT_VAR temporarily.
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# This is needed in case ${RESULT_VAR} is one of the CMAKE_<LANG>_FLAGS_* variables.
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set(_saved_result_var ${${RESULT_VAR}})
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# Clear all flags. If not, existing flags triggering warnings might lead to
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# false-negatives when checking for certain compiler flags.
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set(CMAKE_C_FLAGS )
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set(CMAKE_C_FLAGS_DEBUG )
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set(CMAKE_C_FLAGS_MINSIZEREL )
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set(CMAKE_C_FLAGS_RELEASE )
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set(CMAKE_C_FLAGS_RELWITHDEBINFO )
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set(CMAKE_CXX_FLAGS )
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set(CMAKE_CXX_FLAGS_DEBUG )
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set(CMAKE_CXX_FLAGS_MINSIZEREL )
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set(CMAKE_CXX_FLAGS_RELEASE )
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set(CMAKE_CXX_FLAGS_RELWITHDEBINFO )
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# Internally, the macro CMAKE_CXX_COMPILER_FLAG calls TRY_COMPILE. To avoid
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# the cost of compiling the test each time the project is configured, the variable set by
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# the macro is added to the cache so that following invocation of the macro with
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# the same variable name skip the compilation step.
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# For that same reason, the usFunctionCheckCompilerFlags function appends a unique suffix to
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# the HAS_CXX_FLAG variable. This suffix is created using a 'clean version' of the
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# flag to test. The value of HAS_CXX_FLAG_${suffix} additonally needs to be a valid
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# pre-processor token because CHECK_CXX_COMPILER_FLAG adds it as a definition to the compiler
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# arguments. An invalid token triggers compiler warnings, which in case of the "-Werror" flag
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# leads to false-negative checks.
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string(REGEX REPLACE "[=/-]" "_" suffix ${FLAG_TO_TEST})
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string(REGEX REPLACE "[, \\$\\+\\*\\{\\}\\(\\)\\#]" "" suffix ${suffix})
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CHECK_CXX_COMPILER_FLAG(${FLAG_TO_TEST} HAS_CXX_FLAG_${suffix})
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if(HAS_CXX_FLAG_${suffix})
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set(${RESULT_VAR} "${_saved_result_var} ${FLAG_TO_TEST}" PARENT_SCOPE)
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endif()
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endfunction()
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