rust: build integration test for the qemu_api crate
Adjust the integration test to compile with a subset of QEMU object
files, and make it actually create an object of the class it defines.
Follow the Rust filesystem conventions, where tests go in tests/ if
they use the library in the same way any other code would.
Reviewed-by: Junjie Mao <junjie.mao@hotmail.com>
Reviewed-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
diff --git a/meson.build b/meson.build
index 4bf397e..ac0f03d 100644
--- a/meson.build
+++ b/meson.build
@@ -3345,7 +3345,15 @@
# Prohibit code that is forbidden in Rust 2024
rustc_args += ['-D', 'unsafe_op_in_unsafe_fn']
- add_project_arguments(rustc_args, native: false, language: 'rust')
+
+ # Apart from procedural macros, our Rust executables will often link
+ # with C code, so include all the libraries that C code needs. This
+ # is safe; https://github.com/rust-lang/rust/pull/54675 says that
+ # passing -nodefaultlibs to the linker "was more ideological to
+ # start with than anything".
+ add_project_arguments(rustc_args + ['-C', 'default-linker-libraries'],
+ native: false, language: 'rust')
+
add_project_arguments(rustc_args, native: true, language: 'rust')
endif
diff --git a/rust/qemu-api/meson.build b/rust/qemu-api/meson.build
index 42ea815..1fc3607 100644
--- a/rust/qemu-api/meson.build
+++ b/rust/qemu-api/meson.build
@@ -14,11 +14,31 @@
'--cfg', 'MESON',
# '--cfg', 'feature="allocator"',
],
- dependencies: [
- qemu_api_macros,
- ],
)
qemu_api = declare_dependency(
link_with: _qemu_api_rs,
+ dependencies: qemu_api_macros,
)
+
+# Rust executables do not support objects, so add an intermediate step.
+rust_qemu_api_objs = static_library(
+ 'rust_qemu_api_objs',
+ objects: [libqom.extract_all_objects(recursive: false),
+ libhwcore.extract_all_objects(recursive: false)])
+
+test('rust-qemu-api-integration',
+ executable(
+ 'rust-qemu-api-integration',
+ 'tests/tests.rs',
+ override_options: ['rust_std=2021', 'build.rust_std=2021'],
+ rust_args: ['--test'],
+ install: false,
+ dependencies: [qemu_api, qemu_api_macros],
+ link_whole: [rust_qemu_api_objs, libqemuutil]),
+ args: [
+ '--test',
+ '--format', 'pretty',
+ ],
+ protocol: 'rust',
+ suite: ['unit', 'rust'])
diff --git a/rust/qemu-api/src/lib.rs b/rust/qemu-api/src/lib.rs
index e72fb4b..6bc6807 100644
--- a/rust/qemu-api/src/lib.rs
+++ b/rust/qemu-api/src/lib.rs
@@ -30,9 +30,6 @@ unsafe impl Sync for bindings::VMStateDescription {}
pub mod definitions;
pub mod device_class;
-#[cfg(test)]
-mod tests;
-
use std::alloc::{GlobalAlloc, Layout};
#[cfg(HAVE_GLIB_WITH_ALIGNED_ALLOC)]
diff --git a/rust/qemu-api/src/tests.rs b/rust/qemu-api/src/tests.rs
deleted file mode 100644
index df54edb..0000000
--- a/rust/qemu-api/src/tests.rs
+++ /dev/null
@@ -1,49 +0,0 @@
-// Copyright 2024, Linaro Limited
-// Author(s): Manos Pitsidianakis <manos.pitsidianakis@linaro.org>
-// SPDX-License-Identifier: GPL-2.0-or-later
-
-use crate::{
- bindings::*, declare_properties, define_property, device_class_init, vm_state_description,
-};
-
-#[test]
-fn test_device_decl_macros() {
- // Test that macros can compile.
- vm_state_description! {
- VMSTATE,
- name: c"name",
- unmigratable: true,
- }
-
- #[repr(C)]
- pub struct DummyState {
- pub char_backend: CharBackend,
- pub migrate_clock: bool,
- }
-
- declare_properties! {
- DUMMY_PROPERTIES,
- define_property!(
- c"chardev",
- DummyState,
- char_backend,
- unsafe { &qdev_prop_chr },
- CharBackend
- ),
- define_property!(
- c"migrate-clk",
- DummyState,
- migrate_clock,
- unsafe { &qdev_prop_bool },
- bool
- ),
- }
-
- device_class_init! {
- dummy_class_init,
- props => DUMMY_PROPERTIES,
- realize_fn => None,
- reset_fn => None,
- vmsd => VMSTATE,
- }
-}
diff --git a/rust/qemu-api/tests/tests.rs b/rust/qemu-api/tests/tests.rs
new file mode 100644
index 0000000..aa1e056
--- /dev/null
+++ b/rust/qemu-api/tests/tests.rs
@@ -0,0 +1,78 @@
+// Copyright 2024, Linaro Limited
+// Author(s): Manos Pitsidianakis <manos.pitsidianakis@linaro.org>
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+use core::ffi::CStr;
+
+use qemu_api::{
+ bindings::*,
+ declare_properties, define_property,
+ definitions::{Class, ObjectImpl},
+ device_class_init, vm_state_description,
+};
+
+#[test]
+fn test_device_decl_macros() {
+ // Test that macros can compile.
+ vm_state_description! {
+ VMSTATE,
+ name: c"name",
+ unmigratable: true,
+ }
+
+ #[repr(C)]
+ #[derive(qemu_api_macros::Object)]
+ pub struct DummyState {
+ pub _parent: DeviceState,
+ pub migrate_clock: bool,
+ }
+
+ #[repr(C)]
+ pub struct DummyClass {
+ pub _parent: DeviceClass,
+ }
+
+ declare_properties! {
+ DUMMY_PROPERTIES,
+ define_property!(
+ c"migrate-clk",
+ DummyState,
+ migrate_clock,
+ unsafe { &qdev_prop_bool },
+ bool
+ ),
+ }
+
+ device_class_init! {
+ dummy_class_init,
+ props => DUMMY_PROPERTIES,
+ realize_fn => None,
+ legacy_reset_fn => None,
+ vmsd => VMSTATE,
+ }
+
+ impl ObjectImpl for DummyState {
+ type Class = DummyClass;
+ const TYPE_INFO: qemu_api::bindings::TypeInfo = qemu_api::type_info! { Self };
+ const TYPE_NAME: &'static CStr = c"dummy";
+ const PARENT_TYPE_NAME: Option<&'static CStr> = Some(TYPE_DEVICE);
+ const ABSTRACT: bool = false;
+ const INSTANCE_INIT: Option<unsafe extern "C" fn(obj: *mut Object)> = None;
+ const INSTANCE_POST_INIT: Option<unsafe extern "C" fn(obj: *mut Object)> = None;
+ const INSTANCE_FINALIZE: Option<unsafe extern "C" fn(obj: *mut Object)> = None;
+ }
+
+ impl Class for DummyClass {
+ const CLASS_INIT: Option<
+ unsafe extern "C" fn(klass: *mut ObjectClass, data: *mut core::ffi::c_void),
+ > = Some(dummy_class_init);
+ const CLASS_BASE_INIT: Option<
+ unsafe extern "C" fn(klass: *mut ObjectClass, data: *mut core::ffi::c_void),
+ > = None;
+ }
+
+ unsafe {
+ module_call_init(module_init_type::MODULE_INIT_QOM);
+ object_unref(object_new(DummyState::TYPE_NAME.as_ptr()) as *mut _);
+ }
+}
