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From: Stefan Hajnoczi <stefanha@redhat.com>
To: qemu-devel@nongnu.org
Cc: "Kevin Wolf" <kwolf@redhat.com>,
	"Peter Maydell" <peter.maydell@linaro.org>,
	"Thomas Huth" <thuth@redhat.com>,
	"Eduardo Habkost" <ehabkost@redhat.com>,
	qemu-block@nongnu.org, "Michael S. Tsirkin" <mst@redhat.com>,
	"Laurent Vivier" <lvivier@redhat.com>,
	"Darren Kenny" <darren.kenny@oracle.com>,
	"Max Reitz" <mreitz@redhat.com>,
	"Alexander Bulekov" <alxndr@bu.edu>,
	"Bandan Das" <bsd@redhat.com>,
	"Stefan Hajnoczi" <stefanha@redhat.com>,
	"Marc-André Lureau" <marcandre.lureau@redhat.com>,
	"Paolo Bonzini" <pbonzini@redhat.com>,
	"Fam Zheng" <fam@euphon.net>,
	"Philippe Mathieu-Daudé" <philmd@redhat.com>,
	"Richard Henderson" <rth@twiddle.net>
Subject: [PULL 27/31] fuzz: add configure flag --enable-fuzzing
Date: Sat, 22 Feb 2020 08:50:26 +0000	[thread overview]
Message-ID: <20200222085030.1760640-28-stefanha@redhat.com> (raw)
In-Reply-To: <20200222085030.1760640-1-stefanha@redhat.com>

From: Alexander Bulekov <alxndr@bu.edu>

Signed-off-by: Alexander Bulekov <alxndr@bu.edu>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Darren Kenny <darren.kenny@oracle.com>
Message-id: 20200220041118.23264-19-alxndr@bu.edu
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
---
 configure | 39 +++++++++++++++++++++++++++++++++++++++
 1 file changed, 39 insertions(+)

diff --git a/configure b/configure
index d57261e3ad..48d6f89d57 100755
--- a/configure
+++ b/configure
@@ -505,6 +505,7 @@ debug_mutex="no"
 libpmem=""
 default_devices="yes"
 plugins="no"
+fuzzing="no"
 
 supported_cpu="no"
 supported_os="no"
@@ -635,6 +636,15 @@ 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
@@ -1558,6 +1568,10 @@ for opt do
   ;;
   --disable-containers) use_containers="no"
   ;;
+  --enable-fuzzing) fuzzing=yes
+  ;;
+  --disable-fuzzing) fuzzing=no
+  ;;
   *)
       echo "ERROR: unknown option $opt"
       echo "Try '$0 --help' for more information"
@@ -6072,6 +6086,15 @@ 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
 
@@ -6666,6 +6689,7 @@ echo "libpmem support   $libpmem"
 echo "libudev           $libudev"
 echo "default devices   $default_devices"
 echo "plugin support    $plugins"
+echo "fuzzing support   $fuzzing"
 
 if test "$supported_cpu" = "no"; then
     echo
@@ -7504,6 +7528,16 @@ fi
 if test "$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,fuzzer-no-link"
+  else
+    error_exit "Your compiler doesn't support -fsanitize=address,fuzzer"
+    exit 1
+  fi
+fi
 
 if test "$plugins" = "yes" ; then
     echo "CONFIG_PLUGIN=y" >> $config_host_mak
@@ -7605,6 +7639,11 @@ if test "$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
 
 if test "$edk2_blobs" = "yes" ; then
   echo "DECOMPRESS_EDK2_BLOBS=y" >> $config_host_mak
-- 
2.24.1


  parent reply	other threads:[~2020-02-22  9:00 UTC|newest]

Thread overview: 39+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-02-22  8:49 [PULL 00/31] Block patches Stefan Hajnoczi
2020-02-22  8:50 ` [PULL 01/31] virtio: increase virtqueue size for virtio-scsi and virtio-blk Stefan Hajnoczi
2020-02-22  8:50 ` [PULL 02/31] aio-posix: avoid reacquiring rcu_read_lock() when polling Stefan Hajnoczi
2020-02-22  8:50 ` [PULL 03/31] rcu_queue: add QSLIST functions Stefan Hajnoczi
2020-02-22  8:50 ` [PULL 04/31] util/async: make bh_aio_poll() O(1) Stefan Hajnoczi
2020-03-16 16:42   ` Marc-André Lureau
2020-02-22  8:50 ` [PULL 05/31] aio-posix: fix use after leaving scope in aio_poll() Stefan Hajnoczi
2020-02-22  8:50 ` [PULL 06/31] aio-posix: don't pass ns timeout to epoll_wait() Stefan Hajnoczi
2020-02-22  8:50 ` [PULL 07/31] qemu/queue.h: add QLIST_SAFE_REMOVE() Stefan Hajnoczi
2020-02-22  8:50 ` [PULL 08/31] aio-posix: make AioHandler deletion O(1) Stefan Hajnoczi
2020-02-22  8:50 ` [PULL 09/31] aio-posix: make AioHandler dispatch O(1) with epoll Stefan Hajnoczi
2020-02-22  8:50 ` [PULL 10/31] softmmu: move vl.c to softmmu/ Stefan Hajnoczi
2020-02-22  8:50 ` [PULL 11/31] softmmu: split off vl.c:main() into main.c Stefan Hajnoczi
2020-02-22  8:50 ` [PULL 12/31] module: check module wasn't already initialized Stefan Hajnoczi
2020-02-22  8:50 ` [PULL 13/31] fuzz: add FUZZ_TARGET module type Stefan Hajnoczi
2020-02-22  8:50 ` [PULL 14/31] qtest: add qtest_server_send abstraction Stefan Hajnoczi
2020-02-22  8:50 ` [PULL 15/31] libqtest: add a layer of abstraction to send/recv Stefan Hajnoczi
2020-02-22  8:50 ` [PULL 16/31] libqtest: make bufwrite rely on the TransportOps Stefan Hajnoczi
2020-02-22  8:50 ` [PULL 17/31] qtest: add in-process incoming command handler Stefan Hajnoczi
2020-02-22  8:50 ` [PULL 18/31] libqos: rename i2c_send and i2c_recv Stefan Hajnoczi
2020-02-22  8:50 ` [PULL 19/31] libqos: split qos-test and libqos makefile vars Stefan Hajnoczi
2020-02-22  8:50 ` [PULL 20/31] libqos: move useful qos-test funcs to qos_external Stefan Hajnoczi
2020-02-22  8:50 ` [PULL 21/31] fuzz: add fuzzer skeleton Stefan Hajnoczi
2020-02-22  8:50 ` [PULL 22/31] exec: keep ram block across fork when using qtest Stefan Hajnoczi
2020-02-22  8:50 ` [PULL 23/31] main: keep rcu_atfork callback enabled for qtest Stefan Hajnoczi
2020-02-22  8:50 ` [PULL 24/31] fuzz: support for fork-based fuzzing Stefan Hajnoczi
2020-02-22 11:34   ` Eric Blake
2020-02-24 11:35     ` Stefan Hajnoczi
2020-02-27  2:50       ` Alexander Bulekov
2020-02-22  8:50 ` [PULL 25/31] fuzz: add support for qos-assisted fuzz targets Stefan Hajnoczi
2020-02-22  8:50 ` [PULL 26/31] fuzz: add target/fuzz makefile rules Stefan Hajnoczi
2020-02-22  8:50 ` Stefan Hajnoczi [this message]
2020-02-22  8:50 ` [PULL 28/31] fuzz: add i440fx fuzz targets Stefan Hajnoczi
2020-02-22  8:50 ` [PULL 29/31] fuzz: add virtio-net fuzz target Stefan Hajnoczi
2020-02-22  8:50 ` [PULL 30/31] fuzz: add virtio-scsi " Stefan Hajnoczi
2020-02-22  8:50 ` [PULL 31/31] fuzz: add documentation to docs/devel/ Stefan Hajnoczi
2020-02-22  9:13 ` [PULL 00/31] Block patches no-reply
2020-02-24 11:33   ` Stefan Hajnoczi
2020-02-24 12:47 ` Peter Maydell

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