Import of the watch repository from Pebble

tools/analyze_mcu_flash_config.py

@@ -0,0 +1,84 @@
+# Copyright 2024 Google LLC
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+import binutils
+import os.path
+import sh
+
+
+class Config(object):
+    def abs_path(self, script_relative_path):
+        return os.path.join(
+            os.path.dirname(os.path.realpath(__file__)),
+            script_relative_path)
+
+    def default_elf_abs_path(self):
+        return self.abs_path(self.rel_elf_path())
+
+    def rel_elf_path(self):
+        raise Exception("Implement me!")
+
+    def lib_paths(self):
+        return []
+
+    def lib_symbols(self):
+        # Array of tuples (use_fast, lib_path):
+        lib_paths = self.lib_paths()
+
+        def extract_symbols(object_path):
+            nm = binutils.nm_generator(object_path)
+            return set([s for _, _, s, _, _, _ in nm])
+
+        return {path: extract_symbols(path)
+                for path in lib_paths}
+
+    def memory_region_to_analyze(self):
+        raise Exception("Implement me!")
+
+    def apply_tree_tweaks(self, tree):
+        pass
+
+
+class TintinElfConfig(Config):
+    def rel_elf_path(self):
+        return '../build/src/fw/tintin_fw.elf'
+
+    def memory_region_to_analyze(self):
+        FLASH_START = 0x8008000
+        FLASH_END = FLASH_START + (512 * 1024)
+        FLASH_REGION = (FLASH_START, FLASH_END)
+        return FLASH_REGION
+
+    def lib_paths(self):
+        return []
+
+    def apply_tree_tweaks(self, tree):
+        # Manually add in the bootloader + gap:
+        tree["Bootloader"] = 0x8000
+        tree["Bootloader-FW-Gap"] = 0x8000
+
+
+class DialogElfConfig(Config):
+    def memory_region_to_analyze(self):
+        # Just spelling out both regions here in case someone wants to tweak:
+        sysram_start = 0x7FC0000
+        sysram_end = sysram_start + (128 * 1024)
+        cacheram_start = 0x7FE0000
+        cacheram_end = cacheram_start + (16 * 1024)
+        return (sysram_start, cacheram_end)
+
+
+CONFIG_CLASSES = {
+    'tintin': TintinElfConfig,
+}