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meson: Move -fsanitize=undefined into normal configuraton 

With 8e466dd092 and 23ef50ae2d, we disable function pointer
sanitization in CI because the qemu code base does not support it.
We must disable this for normal usage of --enable-ubsan as well,
so move it there.

Append options rather than prepend, since all of this requires
proper ordering of options.

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Message-ID: <20240813095216.306555-3-richard.henderson@linaro.org>
Signed-off-by: Thomas Huth <thuth@redhat.com>
This commit is contained in:
Richard Henderson 2024-08-13 19:52:16 +10:00 committed by Thomas Huth
parent cb771ac1f5
commit db770a206c
2 changed files with 13 additions and 8 deletions
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10
.gitlab-ci.d/buildtest.yml
View File

@ -436,9 +436,8 @@ clang-system:
job: amd64-fedora-container
variables:
IMAGE: fedora
CONFIGURE_ARGS: --cc=clang --cxx=clang++
--extra-cflags=-fsanitize=undefined --extra-cflags=-fno-sanitize-recover=undefined
--extra-cflags=-fno-sanitize=function
CONFIGURE_ARGS: --cc=clang --cxx=clang++ --enable-ubsan
--extra-cflags=-fno-sanitize-recover=undefined
TARGETS: alpha-softmmu arm-softmmu m68k-softmmu mips64-softmmu s390x-softmmu
MAKE_CHECK_ARGS: check-qtest check-tcg
@ -449,10 +448,9 @@ clang-user:
timeout: 70m
variables:
IMAGE: debian-all-test-cross
CONFIGURE_ARGS: --cc=clang --cxx=clang++ --disable-system
CONFIGURE_ARGS: --cc=clang --cxx=clang++ --disable-system --enable-ubsan
--target-list-exclude=alpha-linux-user,microblazeel-linux-user,aarch64_be-linux-user,i386-linux-user,m68k-linux-user,mipsn32el-linux-user,xtensaeb-linux-user
--extra-cflags=-fsanitize=undefined --extra-cflags=-fno-sanitize-recover=undefined
--extra-cflags=-fno-sanitize=function
--extra-cflags=-fno-sanitize-recover=undefined
MAKE_CHECK_ARGS: check-unit check-tcg
# Set LD_JOBS=1 because this requires LTO and ld consumes a large amount of memory.

11
meson.build
View File

@ -493,8 +493,15 @@ if get_option('ubsan')
# https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84285
if cc.links('int main(int argc, char **argv) { return argc + 1; }',
args: [qemu_ldflags, '-fsanitize=undefined'])
qemu_cflags = ['-fsanitize=undefined'] + qemu_cflags
qemu_ldflags = ['-fsanitize=undefined'] + qemu_ldflags
qemu_cflags += ['-fsanitize=undefined']
qemu_ldflags += ['-fsanitize=undefined']
# Suppress undefined behaviour from function call to mismatched type.
# In addition, tcg prologue does not emit function type prefix
# required by function call sanitizer.
if cc.has_argument('-fno-sanitize=function')
qemu_cflags += ['-fno-sanitize=function']
endif
else
error('Your compiler does not support -fsanitize=undefined')
endif