If for example you want to use the thread sanitizer you want to ensure all
binaries have the extra linker flags applied:
./configure ${TARGETS} --cc=gcc-5 --cxx=g++-5 \
--extra-cflags="-fsanitize=thread" --extra-ldflags="-fsanitize=thread"
Or possibly:
./configure ${TARGETS} --extra-cflags="-fsanitize=thread -fPIC" \
--extra-ldflags="-fsanitize=thread -pie"
Unlike CFLAGS we don't have a QEMU_LDFLAGS which would be appropriate
if we only ever needed to affect ${TARGET} binaries.
Signed-off-by: Alex Bennée <alex.ben...@linaro.org>
---
v1
- new for v1
- --extra-ldflags alternative to -ltsan
- yet another example invocation (gcc 4.9/Gentoo)
---
Makefile | 4 ++--
configure | 2 +-
2 files changed, 3 insertions(+), 3 deletions(-)
diff --git a/Makefile b/Makefile
index d0de2d4..d30532f 100644
--- a/Makefile
+++ b/Makefile
@@ -329,9 +329,9 @@ qemu-ga: qemu-ga$(EXESUF) $(QGA_VSS_PROVIDER) $(QEMU_GA_MSI)
endif
ivshmem-client$(EXESUF): $(ivshmem-client-obj-y)
- $(call LINK, $^)
+ $(call LINK, $^, $(ldflags))
ivshmem-server$(EXESUF): $(ivshmem-server-obj-y) libqemuutil.a libqemustub.a
- $(call LINK, $^)
+ $(call LINK, $^, $(ldflags))
clean:
# avoid old build problems by removing potentially incorrect old files
diff --git a/configure b/configure
index bd29ba7..148b79a 100755
--- a/configure
+++ b/configure
@@ -5871,7 +5871,7 @@ if test "$target_linux_user" = "yes" -o
"$target_bsd_user" = "yes" ; then
ldflags="$ldflags $textseg_ldflags"
fi
-echo "LDFLAGS+=$ldflags" >> $config_target_mak
+echo "LDFLAGS+=$ldflags" >> $config_host_mak
echo "QEMU_CFLAGS+=$cflags" >> $config_target_mak
done # for target in $targets
--
2.7.0
