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envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=40.107.237.112; 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, peter.maydell@linaro.org Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: pass (identity @bushare.onmicrosoft.com) Content-Type: text/plain; charset="utf-8" For some device configurations, it is useful to configure some resources, and adjust QEMU arguments at runtime, prior to fuzzing. This patch adds an "argfunc" to generic the generic_fuzz_config. When specified, it is responsible for configuring the resources and returning a string containing the corresponding QEMU arguments. This can be useful for targets that rely on e.g.: * a temporary qcow2 image * a temporary directory * an unused TCP port used to bind the VNC server Signed-off-by: Alexander Bulekov Reviewed-by: Thomas Huth Message-Id: <20210117230924.449676-2-alxndr@bu.edu> --- tests/qtest/fuzz/generic_fuzz.c | 10 +++++++++- tests/qtest/fuzz/generic_fuzz_configs.h | 1 + 2 files changed, 10 insertions(+), 1 deletion(-) diff --git a/tests/qtest/fuzz/generic_fuzz.c b/tests/qtest/fuzz/generic_fuz= z.c index deb74f15be..ee8c17a04c 100644 --- a/tests/qtest/fuzz/generic_fuzz.c +++ b/tests/qtest/fuzz/generic_fuzz.c @@ -933,12 +933,20 @@ static GString *generic_fuzz_cmdline(FuzzTarget *t) =20 static GString *generic_fuzz_predefined_config_cmdline(FuzzTarget *t) { + gchar *args; const generic_fuzz_config *config; g_assert(t->opaque); =20 config =3D t->opaque; setenv("QEMU_AVOID_DOUBLE_FETCH", "1", 1); - setenv("QEMU_FUZZ_ARGS", config->args, 1); + if (config->argfunc) { + args =3D config->argfunc(); + setenv("QEMU_FUZZ_ARGS", args, 1); + g_free(args); + } else { + g_assert_nonnull(config->args); + setenv("QEMU_FUZZ_ARGS", config->args, 1); + } setenv("QEMU_FUZZ_OBJECTS", config->objects, 1); return generic_fuzz_cmdline(t); } diff --git a/tests/qtest/fuzz/generic_fuzz_configs.h b/tests/qtest/fuzz/gen= eric_fuzz_configs.h index aa4c03f1ae..51e69c6e42 100644 --- a/tests/qtest/fuzz/generic_fuzz_configs.h +++ b/tests/qtest/fuzz/generic_fuzz_configs.h @@ -16,6 +16,7 @@ =20 typedef struct generic_fuzz_config { const char *name, *args, *objects; + gchar* (*argfunc)(void); /* Result must be freeable by g_free() */ } generic_fuzz_config; =20 const generic_fuzz_config predefined_configs[] =3D { --=20 2.28.0