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configure: correctly set sanitizer toolchain compilers

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Previously only the C compiler was set, which would lead to
confusing situations where even though clang-asan was selected,
it would still use g++ for C++ code, failing because configure
does not support mixing compilers in this way (which is a separate
issue not addressed by this commit).
This commit is contained in:
Marvin Scholz 2024-09-12 23:41:33 +02:00
parent 910bf33879
commit 7091da7129
1 changed files with 41 additions and 29 deletions
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70
configure vendored
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@ -4553,37 +4553,49 @@ enabled ossfuzz && ! echo $CFLAGS | grep -q -- "-fsanitize=" && ! echo $CFLAGS
add_ldflags -fsanitize=address,undefined -fsanitize-coverage=trace-pc-guard,trace-cmp
}
add_sanitizer_flags(){
case "$1" in
asan)
add_cflags -fsanitize=address
add_ldflags -fsanitize=address
;;
lsan)
add_cflags -fsanitize=leak
add_ldflags -fsanitize=leak
;;
msan)
add_cflags -fsanitize=memory -fsanitize-memory-track-origins
add_ldflags -fsanitize=memory
;;
tsan)
add_cflags -fsanitize=thread
add_ldflags -fsanitize=thread
;;
usan)
add_cflags -fsanitize=undefined
add_ldflags -fsanitize=undefined
;;
?*)
die "Unknown sanitizer $1"
;;
esac
}
case "$toolchain" in
*-asan)
cc_default="${toolchain%-asan}"
add_cflags -fsanitize=address
add_ldflags -fsanitize=address
clang-*)
add_sanitizer_flags "${toolchain#clang-}"
cc_default="clang"
cxx_default="clang++"
;;
*-lsan)
cc_default="${toolchain%-lsan}"
add_cflags -fsanitize=leak
add_ldflags -fsanitize=leak
;;
*-msan)
cc_default="${toolchain%-msan}"
add_cflags -fsanitize=memory -fsanitize-memory-track-origins
add_ldflags -fsanitize=memory
;;
*-tsan)
cc_default="${toolchain%-tsan}"
add_cflags -fsanitize=thread
add_ldflags -fsanitize=thread
case "$toolchain" in
gcc-tsan)
add_cflags -fPIC
add_ldflags -fPIC
;;
esac
;;
*-usan)
cc_default="${toolchain%-usan}"
add_cflags -fsanitize=undefined
add_ldflags -fsanitize=undefined
gcc-*)
add_sanitizer_flags "${toolchain#gcc-}"
cc_default="gcc"
cxx_default="g++"
# In case of tsan with gcc, PIC has to be enabled
if [ "${toolchain#gcc-}" = "tsan" ]; then
add_cflags -fPIC
add_ldflags -fPIC
fi
;;
valgrind-*)
target_exec_default="valgrind"