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From: Gerd Hoffmann <kraxel@redhat.com>
To: qemu-devel@nongnu.org
Cc: "Kevin Wolf" <kwolf@redhat.com>, "Thomas Huth" <thuth@redhat.com>,
	berrange@redhat.com, qemu-block@nongnu.org,
	"Michael S. Tsirkin" <mst@redhat.com>,
	"Michael Roth" <michael.roth@amd.com>,
	"Cornelia Huck" <cohuck@redhat.com>, "Peter Lieven" <pl@kamp.de>,
	"Markus Armbruster" <armbru@redhat.com>,
	"Max Reitz" <mreitz@redhat.com>,
	"Halil Pasic" <pasic@linux.ibm.com>,
	"Marc-André Lureau" <marcandre.lureau@redhat.com>,
	qemu-s390x@nongnu.org, "Gerd Hoffmann" <kraxel@redhat.com>,
	"Ronnie Sahlberg" <ronniesahlberg@gmail.com>,
	"Samuel Thibault" <samuel.thibault@ens-lyon.org>,
	"Paolo Bonzini" <pbonzini@redhat.com>,
	"David Hildenbrand" <david@redhat.com>,
	"Richard Henderson" <richard.henderson@linaro.org>,
	"Eric Blake" <eblake@redhat.com>,
	"Christian Borntraeger" <borntraeger@de.ibm.com>
Subject: [PATCH v2 14/18] modules: use modinfo for dependencies
Date: Thu, 10 Jun 2021 07:57:51 +0200	[thread overview]
Message-ID: <20210610055755.538119-15-kraxel@redhat.com> (raw)
In-Reply-To: <20210610055755.538119-1-kraxel@redhat.com>

Use module database for module dependencies.
Drop hard-coded dependency list.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
---
 util/module.c | 55 ++++++++++++++++++++-------------------------------
 1 file changed, 21 insertions(+), 34 deletions(-)

diff --git a/util/module.c b/util/module.c
index b0ea8c57d438..fd5fc059e14a 100644
--- a/util/module.c
+++ b/util/module.c
@@ -254,28 +254,6 @@ static int module_load_file(const char *fname, bool mayfail, bool export_symbols
 out:
     return ret;
 }
-
-static const struct {
-    const char *name;
-    const char *dep;
-} module_deps[] = {
-    { "audio-spice",    "ui-spice-core" },
-    { "chardev-spice",  "ui-spice-core" },
-    { "hw-display-qxl", "ui-spice-core" },
-    { "ui-spice-app",   "ui-spice-core" },
-    { "ui-spice-app",   "chardev-spice" },
-
-    { "hw-display-virtio-gpu-gl", "hw-display-virtio-gpu" },
-    { "hw-display-virtio-gpu-pci-gl", "hw-display-virtio-gpu-pci" },
-    { "hw-display-virtio-vga-gl", "hw-display-virtio-vga" },
-
-#ifdef CONFIG_OPENGL
-    { "ui-egl-headless", "ui-opengl"    },
-    { "ui-gtk",          "ui-opengl"    },
-    { "ui-sdl",          "ui-opengl"    },
-    { "ui-spice-core",   "ui-opengl"    },
-#endif
-};
 #endif
 
 bool module_load_one(const char *prefix, const char *lib_name, bool mayfail)
@@ -289,9 +267,11 @@ bool module_load_one(const char *prefix, const char *lib_name, bool mayfail)
 #endif
     char *module_name;
     int i = 0;
-    int ret, dep;
+    int ret;
     bool export_symbols = false;
     static GHashTable *loaded_modules;
+    ModuleInfoList *modlist;
+    strList *sl;
 
     if (!g_module_supported()) {
         fprintf(stderr, "Module is not supported by system.\n");
@@ -304,17 +284,6 @@ bool module_load_one(const char *prefix, const char *lib_name, bool mayfail)
 
     module_name = g_strdup_printf("%s%s", prefix, lib_name);
 
-    for (dep = 0; dep < ARRAY_SIZE(module_deps); dep++) {
-        if (strcmp(module_name, module_deps[dep].name) == 0) {
-            /* we depend on another module */
-            module_load_one("", module_deps[dep].dep, false);
-        }
-        if (strcmp(module_name, module_deps[dep].dep) == 0) {
-            /* another module depends on us */
-            export_symbols = true;
-        }
-    }
-
     if (g_hash_table_contains(loaded_modules, module_name)) {
         g_free(module_name);
         return true;
@@ -324,6 +293,24 @@ bool module_load_one(const char *prefix, const char *lib_name, bool mayfail)
     module_load_path_init();
     module_load_modinfo();
 
+    for (modlist = modinfo->list; modlist != NULL; modlist = modlist->next) {
+        if (modlist->value->has_deps) {
+            if (strcmp(modlist->value->name, module_name) == 0) {
+                /* we depend on other module(s) */
+                for (sl = modlist->value->deps; sl != NULL; sl = sl->next) {
+                    module_load_one("", sl->value, false);
+                }
+            } else {
+                for (sl = modlist->value->deps; sl != NULL; sl = sl->next) {
+                    if (strcmp(module_name, sl->value) == 0) {
+                        /* another module depends on us */
+                        export_symbols = true;
+                    }
+                }
+            }
+        }
+    }
+
     for (i = 0; i < module_ndirs; i++) {
         fname = g_strdup_printf("%s/%s%s",
                 module_dirs[i], module_name, CONFIG_HOST_DSOSUF);
-- 
2.31.1



  parent reply	other threads:[~2021-06-10  6:09 UTC|newest]

Thread overview: 50+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-06-10  5:57 [PATCH v2 00/18] modules: add metadata database Gerd Hoffmann
2021-06-10  5:57 ` [PATCH v2 01/18] modules: add metadata macros, add qxl module annotations Gerd Hoffmann
2021-06-10  5:57 ` [PATCH v2 02/18] qapi: add ModuleInfo schema Gerd Hoffmann
2021-06-14  7:48   ` Markus Armbruster
2021-06-14 15:21     ` Gerd Hoffmann
2021-06-14 16:53       ` Markus Armbruster
2021-06-10  5:57 ` [PATCH v2 03/18] modules: add qemu-modinfo utility Gerd Hoffmann
2021-06-10 13:04   ` Gerd Hoffmann
2021-06-10 13:13     ` Daniel P. Berrangé
2021-06-14  8:34       ` Paolo Bonzini
2021-06-14 14:36         ` Paolo Bonzini
2021-06-15  4:49           ` Gerd Hoffmann
2021-06-15  7:56             ` Gerd Hoffmann
2021-06-15 13:07               ` Gerd Hoffmann
2021-06-15 13:35                 ` Paolo Bonzini
2021-06-16  9:16                   ` Gerd Hoffmann
2021-06-16 10:53                     ` Paolo Bonzini
2021-06-14 15:01         ` Gerd Hoffmann
2021-06-14 15:08           ` Daniel P. Berrangé
2021-06-15  4:54             ` Gerd Hoffmann
2021-06-15  9:27               ` Daniel P. Berrangé
2021-06-10  5:57 ` [PATCH v2 04/18] modules: add virtio-gpu module annotations Gerd Hoffmann
2021-06-10  5:57 ` [PATCH v2 05/18] modules: add chardev " Gerd Hoffmann
2021-06-10  5:57 ` [PATCH v2 06/18] modules: add audio " Gerd Hoffmann
2021-06-10  5:57 ` [PATCH v2 07/18] modules: add usb-redir " Gerd Hoffmann
2021-06-10  5:57 ` [PATCH v2 08/18] modules: add ccid " Gerd Hoffmann
2021-06-10  5:57 ` [PATCH v2 09/18] modules: add ui " Gerd Hoffmann
2021-06-10  5:57 ` [PATCH v2 10/18] modules: add s390x " Gerd Hoffmann
2021-06-10  5:57 ` [PATCH v2 11/18] modules: add block " Gerd Hoffmann
2021-06-10  5:57 ` [PATCH v2 12/18] modules: add module_load_path_init helper Gerd Hoffmann
2021-06-10  5:57 ` [PATCH v2 13/18] modules: load modinfo.json Gerd Hoffmann
2021-06-10  5:57 ` Gerd Hoffmann [this message]
2021-06-10  5:57 ` [PATCH v2 15/18] modules: use modinfo for qom load Gerd Hoffmann
2021-06-10  5:57 ` [PATCH v2 16/18] modules: use modinfo for qemu opts load Gerd Hoffmann
2021-06-10  5:57 ` [PATCH v2 17/18] modules: check arch and block load on mismatch Gerd Hoffmann
2021-06-10 12:35   ` Daniel P. Berrangé
2021-06-10 12:57     ` Gerd Hoffmann
2021-06-10 13:06       ` Daniel P. Berrangé
2021-06-10 14:03         ` Gerd Hoffmann
2021-06-14 11:23           ` Claudio Fontana
2021-06-14 13:44             ` Gerd Hoffmann
2021-06-14 13:52               ` Daniel P. Berrangé
2021-06-14 14:10                 ` Gerd Hoffmann
2021-06-14 11:19     ` Claudio Fontana
2021-06-10  5:57 ` [PATCH v2 18/18] [fixup] module_load_modinfo Gerd Hoffmann
2021-06-10  6:24   ` Gerd Hoffmann
2021-06-10  8:32 ` [PATCH v2 00/18] modules: add metadata database Claudio Fontana
2021-06-10  9:54   ` Gerd Hoffmann
2021-06-14 11:31     ` Claudio Fontana
2021-06-14 14:07       ` Gerd Hoffmann

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