This adds the '-prop <name>=<value>' option which is used to set

boot-time system properties from the command line. This is done
by implementing a new 'boot-properties' qemud service in the emulator.

This is to be used by the 'qemu-props' helper program that will be
invoked by /system/etc/init.goldfish.rc to read a list of system
properties from the emulator and set them in the emulated system
during boot.

1 files changed, 47 insertions, 0 deletions

diff --git a/android/boot-properties.h b/android/boot-properties.h
new file mode 100644
index 0000000..6711c59
--- /dev/null
+++ b/android/boot-properties.h
@@ -0,0 +1,47 @@
+/* Copyright (C) 2009 The Android Open Source Project
+**
+** This software is licensed under the terms of the GNU General Public
+** License version 2, as published by the Free Software Foundation, and
+** may be copied, distributed, and modified under those terms.
+**
+** This program is distributed in the hope that it will be useful,
+** but WITHOUT ANY WARRANTY; without even the implied warranty of
+** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+** GNU General Public License for more details.
+*/
+
+#ifndef _ANDROID_BOOT_PROPERTIES_H
+#define _ANDROID_BOOT_PROPERTIES_H
+
+/* these values give the maximum length of system property
+ * names and values. They must match the corresponding definitions
+ * in the Android source tree (in system/core/include/cutils/properties.h)
+ */
+#define  PROPERTY_MAX_NAME    32
+#define  PROPERTY_MAX_VALUE   92
+
+/* record a new boot system property, this must be performed before the
+ * VM is started. Returns 0 on success, or < 0 on error.
+ * Possible errors are:
+ * -1 property name too long
+ * -2 property value too long
+ * -3 invalid characters in property name
+ */
+int  boot_property_add( const char*  name, const char*  value );
+
+/* same as boot_property_add, but allows to use non-zero terminated strings.
+ */
+int  boot_property_add2( const char*  name, int  namelen,
+                         const char*  value, int  valuelen );
+
+/* init the boot property QEMUD service. This must be performed before
+ * the VM is started. This is also performed automatically if you call
+ * boot_property_add().
+ */
+void  boot_property_init_service( void );
+
+/* parse the parameter the list of -prop options passed on the command line
+ */
+void  boot_property_parse_option( const char*  param );
+
+#endif /* _ANDROID_BOOT_PROPERTIES_H */