[PATCH 07/37] Add xf86ExtensionInit for DDX extension configuration

[Daniel Stone]

xf86ExtensionInit is called after configuration file parsing, so it can
perform the two parts of extension initialisation currently done by
extmod: enabling and disabling of extensions through an 'omit' option,
and SELinux configuration.

Signed-off-by: Daniel Stone <daniel at fooishbar.org>
---
 hw/xfree86/common/Makefile.am      |    2 +-
 hw/xfree86/common/xf86.h           |    3 ++
 hw/xfree86/common/xf86Extensions.c |   56 ++++++++++++++++++++++++++++++++++++
 hw/xfree86/common/xf86Init.c       |    2 +
 4 files changed, 62 insertions(+), 1 deletions(-)
 create mode 100644 hw/xfree86/common/xf86Extensions.c

diff --git a/hw/xfree86/common/Makefile.am b/hw/xfree86/common/Makefile.am
index c031d4b..5853661 100644
--- a/hw/xfree86/common/Makefile.am
+++ b/hw/xfree86/common/Makefile.am
@@ -36,7 +36,7 @@ libcommon_la_SOURCES = xf86Configure.c xf86ShowOpts.c xf86Bus.c xf86Config.c \
                       xf86Option.c xf86Init.c xf86VGAarbiter.c \
                       xf86VidMode.c xf86fbman.c xf86cmap.c \
                       xf86Helper.c xf86PM.c xf86Xinput.c xisb.c \
-                      xf86Mode.c xorgHelper.c \
+                      xf86Mode.c xorgHelper.c xf86Extensions.c \
                       $(XVSOURCES) $(BUSSOURCES) $(RANDRSOURCES)
 nodist_libcommon_la_SOURCES = xf86DefModeSet.c xf86Build.h
 libcommon_la_LIBADD = $(top_builddir)/config/libconfig.la
diff --git a/hw/xfree86/common/xf86.h b/hw/xfree86/common/xf86.h
index 54332e3..e29e958 100644
--- a/hw/xfree86/common/xf86.h
+++ b/hw/xfree86/common/xf86.h
@@ -348,6 +348,9 @@ extern _X_EXPORT Bool xf86RandRSetNewVirtualAndDimensions(ScreenPtr pScreen,
 
 extern _X_EXPORT Bool VidModeExtensionInit(ScreenPtr pScreen);
 
+/* xf86Extensions.c */
+extern void xf86ExtensionInit(void);
+
 #endif /* _NO_XF86_PROTOTYPES */
 
 #endif /* _XF86_H */
diff --git a/hw/xfree86/common/xf86Extensions.c b/hw/xfree86/common/xf86Extensions.c
new file mode 100644
index 0000000..b430d32
--- /dev/null
+++ b/hw/xfree86/common/xf86Extensions.c
@@ -0,0 +1,56 @@
+/*
+ * Copyright © 2011 Daniel Stone
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ *
+ * Author: Daniel Stone <daniel at fooishbar.org>
+ */
+
+#ifdef HAVE_XORG_CONFIG_H
+#include <xorg-config.h>
+#endif
+
+#include "extension.h"
+#include "globals.h"
+
+#include "xf86.h"
+#include "xf86Config.h"
+#include "xf86Opt.h"
+
+void
+xf86ExtensionInit(void)
+{
+    if (xf86configptr->conf_modules) {
+        XF86LoadPtr modp = xf86configptr->conf_modules->mod_load_lst;
+        for (modp = xf86configptr->conf_modules->mod_load_lst; modp;
+             modp = modp->list.next) {
+            XF86OptionPtr opt;
+            if (strcmp(modp->load_name, "extmod") != 0)
+                continue;
+            for (opt = modp->load_opt; opt; opt = opt->list.next) {
+                if (strncmp(opt->opt_name, "omit", 4) != 0 ||
+                    strlen(opt->opt_name) < 5)
+                    continue;
+                if (EnableDisableExtension(opt->opt_name + 4, FALSE))
+                    xf86MarkOptionUsed(opt);
+            }
+	}
+    }
+}
diff --git a/hw/xfree86/common/xf86Init.c b/hw/xfree86/common/xf86Init.c
index 53f763a..5535396 100644
--- a/hw/xfree86/common/xf86Init.c
+++ b/hw/xfree86/common/xf86Init.c
@@ -404,6 +404,8 @@ InitOutput(ScreenInfo *pScreenInfo, int argc, char **argv)
     xf86OSPMClose = xf86OSPMOpen();
 #endif
 
+    xf86ExtensionInit();
+
     /* Load all modules specified explicitly in the config file */
     if ((modulelist = xf86ModulelistFromConfig(&optionlist))) {
       xf86LoadModules(modulelist, optionlist);
-- 
1.7.5.4