2021-06-12 11:25:48 +00:00
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# The MIT License (MIT)
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#
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# Copyright (c)
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# 2013 Matthew Arsenault 2015-2016 RWTH Aachen University, Federal Republic of Germany
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# 2021 Markus Eggenbauer
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#
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# Permission is hereby granted, free of charge, to any person obtaining a copy of this software and
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# associated documentation files (the "Software"), to deal in the Software without restriction,
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# including without limitation the rights to use, copy, modify, merge, publish, distribute,
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# sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is
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# furnished to do so, subject to the following conditions:
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#
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# The above copyright notice and this permission notice shall be included in all copies or
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# substantial portions of the Software.
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#
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# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT
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# NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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# NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
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# DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT
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# OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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option(SANITIZE_CFI "Enable Control Flow Integrity (CFI) for sanitized targets." OFF)
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set(FLAG_CANDIDATES
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# FIXME: Brief comment on why the additional flags
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# In this case you need a
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# linker that does optimization at
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# linking time such as LLVM lld or GNU gold.
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"-g -fsanitize=cfi -fvisibility=hidden -flto -fuse-ld=lld")
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# There might be some conflict with the other sanitizer
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# hence it might need an if statement here.
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# add some handy functions
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include(sanitize-helpers)
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2021-06-12 11:57:25 +00:00
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sanitizer_check_compiler_flags("${FLAG_CANDIDATES}" "ControlFlowIntegrity" "CFI")
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2021-06-12 11:25:48 +00:00
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function(add_sanitize_cfi TARGET)
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sanitizer_check_target(${TARGET})
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sanitizer_add_flags(${TARGET} "ControlFlowIntegrity" "CFI")
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endfunction()
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