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envelope-from=alxndr@bu.edu; helo=NAM12-BN8-obe.outbound.protection.outlook.com X-Spam_score_int: -8 X-Spam_score: -0.9 X-Spam_bar: / X-Spam_report: (-0.9 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, HK_RANDOM_ENVFROM=0.001, HK_RANDOM_FROM=0.999, MSGID_FROM_MTA_HEADER=0.001, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H2=-0.001, SPF_HELO_PASS=-0.001, SPF_PASS=-0.001 autolearn=no autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Alexander Bulekov , Thomas Huth , philmd@redhat.com, Darren Kenny , peter.maydell@linaro.org Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: "Qemu-devel" Signed-off-by: Alexander Bulekov Reviewed-by: Darren Kenny Message-Id: <20210117230924.449676-3-alxndr@bu.edu> --- docs/devel/fuzzing.rst | 26 ++++++++++++++++++++++++++ 1 file changed, 26 insertions(+) diff --git a/docs/devel/fuzzing.rst b/docs/devel/fuzzing.rst index 5f5200c843..b9bb07988b 100644 --- a/docs/devel/fuzzing.rst +++ b/docs/devel/fuzzing.rst @@ -180,6 +180,32 @@ To ensure that these env variables have been configured correctly, we can use:: The output should contain a complete list of matched MemoryRegions. +OSS-Fuzz +-------- +QEMU is continuously fuzzed on `OSS-Fuzz` __(https://github.com/google/oss-fuzz). +By default, the OSS-Fuzz build will try to fuzz every fuzz-target. Since the +generic-fuzz target requires additional information provided in environment +variables, we pre-define some generic-fuzz configs in +``tests/qtest/fuzz/generic_fuzz_configs.h``. Each config must specify: + * ``.name``: To identify the fuzzer config + * ``.args`` OR ``.argfunc``: A string or pointer to a function returning a + string. These strings are used to specify the ``QEMU_FUZZ_ARGS`` + environment variable. ``argfunc`` is useful when the config relies on e.g. + a dynamically created temp directory, or a free tcp/udp port. + * ``.objects``: A string that specifies the ``QEMU_FUZZ_OBJECTS`` environment + variable. + +To fuzz additional devices/device configuration on OSS-Fuzz: + * Send patches for a new device-specific fuzzer + * Send patches for a new generic-fuzz config + +Build details: + * `The basic Dockerfile that sets up the environment for building QEMU's + fuzzers on OSS-Fuzz + `_ + * The script responsible for building the fuzzers: + ``scripts/oss-fuzz/build.sh`` + Implementation Details / Fuzzer Lifecycle -----------------------------------------