freebsd-nq/lib/libgcc_eh/Makefile.inc
Alex Richardson 7bc797e3f3 Add build system support for ASAN+UBSAN instrumentation
This adds two new options WITH_ASAN/WITH_UBSAN that can be set to
enable instrumentation of all binaries with AddressSanitizer and/or
UndefinedBehaviourSanitizer. This current patch is almost sufficient
to get a complete buildworld with sanitizer instrumentation but in
order to actually build and boot a system it depends on a few more
follow-up commits.

Reviewed By:	brooks, kib, markj
Differential Revision: https://reviews.freebsd.org/D31043
2021-08-02 14:33:24 +01:00

48 lines
1.4 KiB
Makefile

# $FreeBSD$
COMPILERRTDIR= ${SRCTOP}/contrib/llvm-project/compiler-rt
UNWINDINCDIR= ${SRCTOP}/contrib/llvm-project/libunwind/include
UNWINDSRCDIR= ${SRCTOP}/contrib/llvm-project/libunwind/src
STATIC_CFLAGS+=${PICFLAG} -fvisibility=hidden -DVISIBILITY_HIDDEN
.PATH: ${COMPILERRTDIR}/lib/builtins
.PATH: ${UNWINDSRCDIR}
SRCS_EXC+= gcc_personality_v0.c
SRCS_EXC+= Unwind-EHABI.cpp
SRCS_EXC+= Unwind-sjlj.c
SRCS_EXC+= UnwindLevel1-gcc-ext.c
SRCS_EXC+= UnwindLevel1.c
SRCS_EXC+= UnwindRegistersRestore.S
SRCS_EXC+= UnwindRegistersSave.S
SRCS_EXC+= libunwind.cpp
SRCS+= ${SRCS_EXC}
.for file in ${SRCS_EXC:M*.c}
CFLAGS.${file}+= -fno-exceptions -funwind-tables
.if ${MK_ASAN} != "no"
# False-positives during stack unwinding
CFLAGS.${file}+= -fno-sanitize=address
.endif
.endfor
.for file in ${SRCS_EXC:M*.cpp}
CXXFLAGS.${file}+= -fno-exceptions -funwind-tables
.if ${MK_ASAN} != "no"
# False-positives during stack unwinding
CXXFLAGS.${file}+= -fno-sanitize=address
.endif
.endfor
CFLAGS+= -I${UNWINDINCDIR}
CFLAGS+= -I${.CURDIR}
CFLAGS+= -D_LIBUNWIND_IS_NATIVE_ONLY
CFLAGS+= -D_LIBUNWIND_USE_FRAME_HEADER_CACHE
CXXFLAGS+= -fno-rtti
CXXSTD?= c++11
STATIC_CXXFLAGS+= -fvisibility=hidden -fPIC
# Probably need to just move this earlier or use CXXFLAGS
.if ${MK_DIRDEPS_BUILD} == "yes"
# Avoid dependency on lib/libc++
CFLAGS+= -isystem ${SRCTOP}/contrib/llvm-project/libcxx/include -nostdinc++
.endif