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[PATCH v5 13/20] fuzz: add configure flag --enable-fuzzing
From: |
Oleinik, Alexander |
Subject: |
[PATCH v5 13/20] fuzz: add configure flag --enable-fuzzing |
Date: |
Wed, 13 Nov 2019 22:50:49 +0000 |
Signed-off-by: Alexander Bulekov <address@hidden>
---
configure | 39 +++++++++++++++++++++++++++++++++++++++
1 file changed, 39 insertions(+)
diff --git a/configure b/configure
index 3be9e92a24..aeca632dd9 100755
--- a/configure
+++ b/configure
@@ -501,6 +501,7 @@ libxml2=""
debug_mutex="no"
libpmem=""
default_devices="yes"
+fuzzing="no"
supported_cpu="no"
supported_os="no"
@@ -630,6 +631,15 @@ int main(void) { return 0; }
EOF
}
+write_c_fuzzer_skeleton() {
+ cat > $TMPC <<EOF
+#include <stdint.h>
+#include <sys/types.h>
+int LLVMFuzzerTestOneInput(const uint8_t *Data, size_t Size);
+int LLVMFuzzerTestOneInput(const uint8_t *Data, size_t Size) { return 0; }
+EOF
+}
+
if check_define __linux__ ; then
targetos="Linux"
elif check_define _WIN32 ; then
@@ -1532,6 +1542,10 @@ for opt do
;;
--disable-xkbcommon) xkbcommon=no
;;
+ --enable-fuzzing) fuzzing=yes
+ ;;
+ --disable-fuzzing) fuzzing=no
+ ;;
*)
echo "ERROR: unknown option $opt"
echo "Try '$0 --help' for more information"
@@ -5911,6 +5925,15 @@ EOF
fi
fi
+##########################################
+# checks for fuzzer
+if test "$fuzzing" = "yes" ; then
+ write_c_fuzzer_skeleton
+ if compile_prog "$CPU_CFLAGS -Werror -fsanitize=address,fuzzer" ""; then
+ have_fuzzer=yes
+ fi
+fi
+
##########################################
# check for libpmem
@@ -6491,6 +6514,7 @@ echo "capstone $capstone"
echo "libpmem support $libpmem"
echo "libudev $libudev"
echo "default devices $default_devices"
+echo "fuzzing support $fuzzing"
if test "$supported_cpu" = "no"; then
echo
@@ -7327,6 +7351,16 @@ fi
if test "$sheepdog" = "yes" ; then
echo "CONFIG_SHEEPDOG=y" >> $config_host_mak
fi
+if test "$fuzzing" = "yes" ; then
+ if test "$have_fuzzer" = "yes"; then
+ FUZZ_LDFLAGS=" -fsanitize=address,fuzzer"
+ FUZZ_CFLAGS=" -fsanitize=address,fuzzer"
+ CFLAGS=" -fsanitize=address"
+ else
+ error_exit "Your compiler doesn't support -fsanitize=address,fuzzer"
+ exit 1
+ fi
+fi
if test "$tcg_interpreter" = "yes"; then
QEMU_INCLUDES="-iquote \$(SRC_PATH)/tcg/tci $QEMU_INCLUDES"
@@ -7409,6 +7443,11 @@ if test "$libudev" != "no"; then
echo "CONFIG_LIBUDEV=y" >> $config_host_mak
echo "LIBUDEV_LIBS=$libudev_libs" >> $config_host_mak
fi
+if test "$fuzzing" != "no"; then
+ echo "CONFIG_FUZZ=y" >> $config_host_mak
+ echo "FUZZ_CFLAGS=$FUZZ_CFLAGS" >> $config_host_mak
+ echo "FUZZ_LDFLAGS=$FUZZ_LDFLAGS" >> $config_host_mak
+fi
# use included Linux headers
if test "$linux" = "yes" ; then
--
2.23.0
- [PATCH v5 00/20] Add virtual device fuzzing support, Oleinik, Alexander, 2019/11/13
- [PATCH v5 06/20] module: check module wasn't already initialized, Oleinik, Alexander, 2019/11/13
- [PATCH v5 01/20] softmmu: split off vl.c:main() into main.c, Oleinik, Alexander, 2019/11/13
- [PATCH v5 09/20] libqos: split qos-test and libqos makefile vars, Oleinik, Alexander, 2019/11/13
- [PATCH v5 05/20] libqtest: Add a layer of abstraciton to send/recv, Oleinik, Alexander, 2019/11/13
- [PATCH v5 13/20] fuzz: add configure flag --enable-fuzzing,
Oleinik, Alexander <=
- [PATCH v5 03/20] fuzz: Add FUZZ_TARGET module type, Oleinik, Alexander, 2019/11/13
- [PATCH v5 15/20] fuzz: add fuzzer skeleton, Oleinik, Alexander, 2019/11/13
- [PATCH v5 20/20] fuzz: add documentation to docs/devel/, Oleinik, Alexander, 2019/11/13
- [PATCH v5 08/20] tests: provide test variables to other targets, Oleinik, Alexander, 2019/11/13
- [PATCH v5 11/20] libqtest: make bufwrite rely on the TransportOps, Oleinik, Alexander, 2019/11/13
- [PATCH v5 14/20] fuzz: Add target/fuzz makefile rules, Oleinik, Alexander, 2019/11/13
- [PATCH v5 10/20] libqos: move useful qos-test funcs to qos_external, Oleinik, Alexander, 2019/11/13
- [PATCH v5 18/20] fuzz: add i440fx fuzz targets, Oleinik, Alexander, 2019/11/13
- [PATCH v5 17/20] fuzz: add support for qos-assisted fuzz targets, Oleinik, Alexander, 2019/11/13
- [PATCH v5 19/20] fuzz: add virtio-net fuzz target, Oleinik, Alexander, 2019/11/13