44 lines
1.6 KiB
Makefile
44 lines
1.6 KiB
Makefile
.include <bsd.opts.mk>
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_use_sanitizers= no
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# Add the necessary sanitizer flags if requested
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.if ${MK_ASAN} == "yes" && ${NO_SHARED:Uno:tl} == "no"
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SANITIZER_CFLAGS+= -fsanitize=address -fPIC
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# TODO: remove this once all basic errors have been fixed:
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# https://github.com/google/sanitizers/wiki/AddressSanitizer#faq
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SANITIZER_CFLAGS+= -fsanitize-recover=address
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SANITIZER_LDFLAGS+= -fsanitize=address
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_use_sanitizers= yes
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.endif # ${MK_ASAN} == "yes"
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.if ${MK_UBSAN} == "yes" && ${NO_SHARED:Uno:tl} == "no"
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# Unlike the other sanitizers, UBSan could also work for static libraries.
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# However, this currently results in linker errors (even with the
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# -fsanitize-minimal-runtime flag), so only enable it for dynamically linked
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# code for now.
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SANITIZER_CFLAGS+= -fsanitize=undefined
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SANITIZER_CFLAGS+= -fsanitize-recover=undefined
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SANITIZER_LDFLAGS+= -fsanitize=undefined
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_use_sanitizers= yes
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.endif # ${MK_UBSAN} == "yes"
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.if !defined(BOOTSTRAPPING) && ${_use_sanitizers} != "no" && \
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${COMPILER_TYPE} != "clang" && make(all)
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.error Sanitizer instrumentation currently only supported with clang
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.endif
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# For libraries we only instrument the shared and PIE libraries by setting
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# SHARED_CFLAGS instead of CFLAGS. We do this since static executables are not
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# compatible with the sanitizers (interceptors do not work).
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.if ${_use_sanitizers} != "no"
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.include "../../lib/libclang_rt/compiler-rt-vars.mk"
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.if target(__<bsd.lib.mk>__)
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SHARED_CFLAGS+= ${SANITIZER_CFLAGS}
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SOLINKOPTS+= ${SANITIZER_LDFLAGS}
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LDFLAGS:= ${LDFLAGS:N-Wl,-no-undefined:N-Wl,--no-undefined}
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.else
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CFLAGS+= ${SANITIZER_CFLAGS}
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LDFLAGS+= ${SANITIZER_LDFLAGS}
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.endif
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.endif # ${_use_sanitizers} != "no"
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