[v4] modules: add meta-data database

[PATCH v4 17/34] modules: add tracepoints

Gerd Hoffmann posted 34 patches 4 years, 7 months ago

Diff against v3
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Maintainers: Eduardo Habkost <ehabkost@redhat.com>, Richard Henderson <richard.henderson@linaro.org>, David Gibson <david@gibson.dropbear.id.au>, "Marc-André Lureau" <marcandre.lureau@redhat.com>, Samuel Thibault <samuel.thibault@ens-lyon.org>, Greg Kurz <groug@kaod.org>, Kevin Wolf <kwolf@redhat.com>, Thomas Huth <thuth@redhat.com>, Max Reitz <mreitz@redhat.com>, Cleber Rosa <crosa@redhat.com>, Peter Lieven <pl@kamp.de>, Paolo Bonzini <pbonzini@redhat.com>, David Hildenbrand <david@redhat.com>, "Daniel P. Berrangé" <berrange@redhat.com>, Ronnie Sahlberg <ronniesahlberg@gmail.com>, Halil Pasic <pasic@linux.ibm.com>, Laurent Vivier <lvivier@redhat.com>, "Dr. David Alan Gilbert" <dgilbert@redhat.com>, Christian Borntraeger <borntraeger@de.ibm.com>, Gerd Hoffmann <kraxel@redhat.com>, Markus Armbruster <armbru@redhat.com>, Cornelia Huck <cohuck@redhat.com>, "Michael S. Tsirkin" <mst@redhat.com>

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[PATCH v4 17/34] modules: add tracepoints

Posted by Gerd Hoffmann 4 years, 7 months ago

One for module load and one for qom type lookup.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
---
 util/module.c     | 3 +++
 util/trace-events | 4 ++++
 2 files changed, 7 insertions(+)

diff --git a/util/module.c b/util/module.c
index a9ec2da9972e..acaaecad56c9 100644
--- a/util/module.c
+++ b/util/module.c
@@ -24,6 +24,7 @@
 #ifdef CONFIG_MODULE_UPGRADES
 #include "qemu-version.h"
 #endif
+#include "trace.h"
 
 typedef struct ModuleEntry
 {
@@ -176,6 +177,7 @@ static int module_load_file(const char *fname, bool mayfail, bool export_symbols
         ret = 0;
     }
 
+    trace_module_load_module(fname);
     QTAILQ_FOREACH_SAFE(e, &dso_init_list, node, next) {
         QTAILQ_REMOVE(&dso_init_list, e, node);
         g_free(e);
@@ -294,6 +296,7 @@ void module_load_qom_one(const char *type)
         return;
     }
 
+    trace_module_lookup_object_type(type);
     for (modinfo = module_info; modinfo->name != NULL; modinfo++) {
         if (!modinfo->objs) {
             continue;
diff --git a/util/trace-events b/util/trace-events
index 806cac14a762..c8f53d7d9fc3 100644
--- a/util/trace-events
+++ b/util/trace-events
@@ -100,3 +100,7 @@ uffd_create_fd_api_failed(int err) "errno: %i"
 uffd_create_fd_api_noioctl(uint64_t ioctl_req, uint64_t ioctl_supp) "ioctl_req: 0x%" PRIx64 "ioctl_supp: 0x%" PRIx64
 uffd_register_memory_failed(void *addr, uint64_t length, uint64_t mode, int err) "addr: %p length: %" PRIu64 " mode: 0x%" PRIx64 " errno: %i"
 uffd_unregister_memory_failed(void *addr, uint64_t length, int err) "addr: %p length: %" PRIu64 " errno: %i"
+
+# module.c
+module_load_module(const char *name) "file %s"
+module_lookup_object_type(const char *name) "name %s"
-- 
2.31.1