Merge upstream QEMU 10.0.50 into the Android source tree.

This change integrates many changes from the upstream QEMU sources.
Its main purpose is to enable correct ARMv6 and ARMv7 support to the
Android emulator. Due to the nature of the upstream code base, this
unfortunately also required changes to many other parts of the source.

Note that to ensure easier integrations in the future, some source files
and directories that have heavy Android-specific customization have been
renamed with an -android suffix. The original files are still there for
easier integration tracking, but *never* compiled. For example:

  net.c        net-android.c
  qemu-char.c  qemu-char-android.c
  slirp/       slirp-android/
  etc...

Tested on linux-x86, darwin-x86 and windows host machines.

1 files changed, 109 insertions, 0 deletions

diff --git a/device_tree.c b/device_tree.c
new file mode 100644
index 0000000..cc91606
--- /dev/null
+++ b/device_tree.c
@@ -0,0 +1,109 @@
+/*
+ * Functions to help device tree manipulation using libfdt.
+ * It also provides functions to read entries from device tree proc
+ * interface.
+ *
+ * Copyright 2008 IBM Corporation.
+ * Authors: Jerone Young <jyoung5@us.ibm.com>
+ *          Hollis Blanchard <hollisb@us.ibm.com>
+ *
+ * This work is licensed under the GNU GPL license version 2 or later.
+ *
+ */
+
+#include <stdio.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <unistd.h>
+#include <stdlib.h>
+
+#include "config.h"
+#include "qemu-common.h"
+#include "sysemu.h"
+#include "device_tree.h"
+
+#include <libfdt.h>
+
+void *load_device_tree(const char *filename_path, int *sizep)
+{
+    int dt_size;
+    int dt_file_load_size;
+    int ret;
+    void *fdt = NULL;
+
+    *sizep = 0;
+    dt_size = get_image_size(filename_path);
+    if (dt_size < 0) {
+        printf("Unable to get size of device tree file '%s'\n",
+            filename_path);
+        goto fail;
+    }
+
+    /* Expand to 2x size to give enough room for manipulation.  */
+    dt_size *= 2;
+    /* First allocate space in qemu for device tree */
+    fdt = qemu_mallocz(dt_size);
+
+    dt_file_load_size = load_image(filename_path, fdt);
+    if (dt_file_load_size < 0) {
+        printf("Unable to open device tree file '%s'\n",
+               filename_path);
+        goto fail;
+    }
+
+    ret = fdt_open_into(fdt, fdt, dt_size);
+    if (ret) {
+        printf("Unable to copy device tree in memory\n");
+        goto fail;
+    }
+
+    /* Check sanity of device tree */
+    if (fdt_check_header(fdt)) {
+        printf ("Device tree file loaded into memory is invalid: %s\n",
+            filename_path);
+        goto fail;
+    }
+    *sizep = dt_size;
+    return fdt;
+
+fail:
+    qemu_free(fdt);
+    return NULL;
+}
+
+int qemu_devtree_setprop(void *fdt, const char *node_path,
+                         const char *property, uint32_t *val_array, int size)
+{
+    int offset;
+
+    offset = fdt_path_offset(fdt, node_path);
+    if (offset < 0)
+        return offset;
+
+    return fdt_setprop(fdt, offset, property, val_array, size);
+}
+
+int qemu_devtree_setprop_cell(void *fdt, const char *node_path,
+                              const char *property, uint32_t val)
+{
+    int offset;
+
+    offset = fdt_path_offset(fdt, node_path);
+    if (offset < 0)
+        return offset;
+
+    return fdt_setprop_cell(fdt, offset, property, val);
+}
+
+int qemu_devtree_setprop_string(void *fdt, const char *node_path,
+                                const char *property, const char *string)
+{
+    int offset;
+
+    offset = fdt_path_offset(fdt, node_path);
+    if (offset < 0)
+        return offset;
+
+    return fdt_setprop_string(fdt, offset, property, string);
+}