tcg plugins: expose an API version concept
This is a very simple versioning API which allows the plugin
infrastructure to check the API a plugin was built against. We also
expose a min/cur API version to the plugin via the info block in case
it wants to avoid using old deprecated APIs in the future.
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Robert Foley <robert.foley@linaro.org>
diff --git a/tests/plugin/howvec.c b/tests/plugin/howvec.c
index 58fa675..4ca555e 100644
--- a/tests/plugin/howvec.c
+++ b/tests/plugin/howvec.c
@@ -20,6 +20,8 @@
#include <qemu-plugin.h>
+QEMU_PLUGIN_EXPORT int qemu_plugin_version = QEMU_PLUGIN_VERSION;
+
#define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0]))
typedef enum {
