Symbol database skeleton.

src/cpu/sdb.cc

@@ -0,0 +1,88 @@
+/**
+ ******************************************************************************
+ * Xenia : Xbox 360 Emulator Research Project                                 *
+ ******************************************************************************
+ * Copyright 2013 Ben Vanik. All rights reserved.                             *
+ * Released under the BSD license - see LICENSE in the root for more details. *
+ ******************************************************************************
+ */
+
+#include <xenia/cpu/sdb.h>
+
+
+struct xe_sdb {
+  xe_ref_t ref;
+
+  xe_memory_ref   memory;
+};
+
+
+xe_sdb_ref xe_sdb_create(xe_memory_ref memory) {
+  xe_sdb_ref sdb = (xe_sdb_ref)xe_calloc(sizeof(xe_sdb));
+  xe_ref_init((xe_ref)sdb);
+
+  sdb->memory = xe_memory_retain(memory);
+
+  return sdb;
+}
+
+void xe_sdb_dealloc(xe_sdb_ref sdb) {
+  xe_memory_release(sdb->memory);
+}
+
+xe_sdb_ref xe_sdb_retain(xe_sdb_ref sdb) {
+  xe_ref_retain((xe_ref)sdb);
+  return sdb;
+}
+
+void xe_sdb_release(xe_sdb_ref sdb) {
+  xe_ref_release((xe_ref)sdb, (xe_ref_dealloc_t)xe_sdb_dealloc);
+}
+
+xe_sdb_function_t* xe_sdb_insert_function(xe_sdb_ref sdb, uint32_t address) {
+  return NULL;
+}
+
+xe_sdb_variable_t* xe_sdb_insert_variable(xe_sdb_ref sdb, uint32_t address) {
+  return NULL;
+}
+
+xe_sdb_function_t* xe_sdb_get_function(xe_sdb_ref sdb, uint32_t address) {
+  return NULL;
+}
+
+xe_sdb_variable_t* xe_sdb_get_variable(xe_sdb_ref sdb, uint32_t address) {
+  return NULL;
+}
+
+void xe_sdb_dump(xe_sdb_ref sdb) {
+  // TODO(benvanik): dump all functions and symbols
+}
+
+int xe_sdb_analyze_function(xe_sdb_ref sdb, xe_sdb_function_t *fn) {
+  // Ignore functions already analyzed.
+  if (fn->type != kXESDBFunctionUnknown) {
+    return 0;
+  }
+
+  // TODO(benvanik): analysis.
+  // Search forward from start address to find the end address.
+  // Use branch tracking to figure that out.
+  return 0;
+}
+
+int xe_sdb_analyze_module(xe_sdb_ref sdb, xe_module_ref module) {
+  // TODO(benvanik): analysis.
+  // Iteratively run passes over the db:
+  // - for each import:
+  //   - insert fn and setup as a thunk
+  // - for each export
+  //   - insert fn or variable
+  //   - queue fn
+  // - insert entry point
+  // - queue entry point
+  // - while (process_queue.length()):
+  //   - fn = shift()
+  //   - analyze_function(fn)
+  return 0;
+}