1.include <bsd.opts.mk> 2 3_use_sanitizers= no 4# Add the necessary sanitizer flags if requested 5.if ${MK_ASAN} == "yes" && ${NO_SHARED:Uno:tl} == "no" 6SANITIZER_CFLAGS+= -fsanitize=address -fPIC 7# TODO: remove this once all basic errors have been fixed: 8# https://github.com/google/sanitizers/wiki/AddressSanitizer#faq 9SANITIZER_CFLAGS+= -fsanitize-recover=address 10SANITIZER_LDFLAGS+= -fsanitize=address 11_use_sanitizers= yes 12.endif # ${MK_ASAN} == "yes" 13 14.if ${MK_UBSAN} == "yes" && ${NO_SHARED:Uno:tl} == "no" 15# Unlike the other sanitizers, UBSan could also work for static libraries. 16# However, this currently results in linker errors (even with the 17# -fsanitize-minimal-runtime flag), so only enable it for dynamically linked 18# code for now. 19SANITIZER_CFLAGS+= -fsanitize=undefined 20SANITIZER_CFLAGS+= -fsanitize-recover=undefined 21SANITIZER_LDFLAGS+= -fsanitize=undefined 22_use_sanitizers= yes 23.endif # ${MK_UBSAN} == "yes" 24 25.if !defined(BOOTSTRAPPING) && ${_use_sanitizers} != "no" && \ 26 ${COMPILER_TYPE} != "clang" && make(all) 27.error Sanitizer instrumentation currently only supported with clang 28.endif 29 30# For libraries we only instrument the shared and PIE libraries by setting 31# SHARED_CFLAGS instead of CFLAGS. We do this since static executables are not 32# compatible with the sanitizers (interceptors do not work). 33.if ${_use_sanitizers} != "no" 34.include "../../lib/libclang_rt/compiler-rt-vars.mk" 35.if target(__<bsd.lib.mk>__) 36SHARED_CFLAGS+= ${SANITIZER_CFLAGS} 37SOLINKOPTS+= ${SANITIZER_LDFLAGS} 38LDFLAGS:= ${LDFLAGS:N-Wl,-no-undefined:N-Wl,--no-undefined} 39.else 40CFLAGS+= ${SANITIZER_CFLAGS} 41LDFLAGS+= ${SANITIZER_LDFLAGS} 42.endif 43.endif # ${_use_sanitizers} != "no" 44