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[PATCH] configure: force enable-sanitizers together with enable-fuzzing
From: |
Li Qiang |
Subject: |
[PATCH] configure: force enable-sanitizers together with enable-fuzzing |
Date: |
Sun, 21 Feb 2021 04:59:00 -0800 |
If we execute configure with --enable-fuzzing but without
--enable-sanitizers, we will have a lot of 'undefined reference'
build error such as following:
clang-10 -o subprojects/libvhost-user/link-test
subprojects/libvhost-user/link-test.p/link-test.c.o -Wl,--as-needed
-Wl,--no-undefined -pie -Wl,--whole-archive -Wl,--start-group
subprojects/libvhost-user/libvhost-user.a -Wl,--end-group
-Wl,--no-whole-archive -Wl,--warn-common -Wl,-z,relro -Wl,-z,now -m64
-fstack-protector-strong -pthread
/usr/bin/ld: subprojects/libvhost-user/link-test.p/link-test.c.o: in function
`main':
/home/test/qemu/build/../subprojects/libvhost-user/link-test.c:34: undefined
reference to `__sancov_lowest_stack'
/usr/bin/ld:
/home/test/qemu/build/../subprojects/libvhost-user/link-test.c:(.text.main[main]+0x55):
undefined reference to `__sancov_lowest_stack'
/usr/bin/ld: /home/test/qemu/build/../subprojects/libvhost-user/link-test.c:41:
undefined reference to `__sanitizer_cov_trace_const_cmp4'
/usr/bin/ld: subprojects/libvhost-user/link-test.p/link-test.c.o: in function
`sancov.module_ctor_8bit_counters':
link-test.c:(.text.sancov.module_ctor_8bit_counters[sancov.module_ctor_8bit_counters]+0x16):
undefined reference to `__sanitizer_cov_8bit_counters_init'
/usr/bin/ld:
link-test.c:(.text.sancov.module_ctor_8bit_counters[sancov.module_ctor_8bit_counters]+0x2f):
undefined reference to `__sanitizer_cov_pcs_init'
/usr/bin/ld: subprojects/libvhost-user/libvhost-user.a(libvhost-user.c.o): in
function `vu_gpa_to_va':
/home/test/qemu/build/../subprojects/libvhost-user/libvhost-user.c:182:
undefined reference to `__sanitizer_cov_trace_const_cmp8'
/usr/bin/ld:
/home/test/qemu/build/../subprojects/libvhost-user/libvhost-user.c:187:
undefined reference to `__sanitizer_cov_trace_cmp4'
/usr/bin/ld:
/home/test/qemu/build/../subprojects/libvhost-user/libvhost-user.c:190:
undefined reference to `__sanitizer_cov_trace_cmp8'
/usr/bin/ld:
/home/test/qemu/build/../subprojects/libvhost-user/libvhost-user.c:190:
undefined reference to `__sanitizer_cov_trace_cmp8'
/usr/bin/ld:
/home/test/qemu/build/../subprojects/libvhost-user/libvhost-user.c:191:
undefined reference to `__sanitizer_cov_trace_cmp8'
Let's avoid this error by enforcing fuzzing and sanitizers together.
Signed-off-by: Li Qiang <liq3ea@163.com>
---
configure | 3 +++
1 file changed, 3 insertions(+)
diff --git a/configure b/configure
index a34f91171d..9f00a1d887 100755
--- a/configure
+++ b/configure
@@ -6083,6 +6083,9 @@ if test "$have_mlockall" = "yes" ; then
echo "HAVE_MLOCKALL=y" >> $config_host_mak
fi
if test "$fuzzing" = "yes" ; then
+ if test "$sanitizers" = "no"; then
+ error_exit "enable-fuzzing also needs enable-sanitizers"
+ fi
# If LIB_FUZZING_ENGINE is set, assume we are running on OSS-Fuzz, and the
# needed CFLAGS have already been provided
if test -z "${LIB_FUZZING_ENGINE+xxx}" ; then
--
2.25.1
- [PATCH] configure: force enable-sanitizers together with enable-fuzzing,
Li Qiang <=