Search for elfs with non-matching filename

scripts/build.py

@@ -120,6 +120,22 @@ def build_sample(self) -> dict:
 
         return arifacts
 
+    def _find_elf_file(self) -> str:
+        """
+        Search for an ELF file in the Zephyr build directory.
+
+        Returns:
+            str: filename if an ELF exists, otherwise None.
+        """
+
+        for root, _, files in os.walk(os.path.dirname(self.temp_dir_path)):
+            for _file in files:
+                # zephyr_pre0.elf is always created, skip it
+                if _file.endswith(".elf") and _file != "zephyr_pre0.elf":
+                    return os.path.join(root, _file)
+
+        return None
+
     def get_artifacts(self) -> dict:
         """
             Retrieves the paths of all existing artifacts in the temporary directory.
@@ -134,6 +150,11 @@ def get_artifacts(self) -> dict:
             if os.path.exists(expanded_path):
                 artifacts[name] = expanded_path
 
+        # Platforms may change the default name of the ELF artifact (`esp32s3_devkitm_appcpu`).
+        if ("elf" not in artifacts) and (candidate := self._find_elf_file()):
+            print(f"zephyr.elf not found! Trying to use: {candidate}")
+            artifacts["elf"] = candidate
+
         return artifacts
 
     def _copy_original_dts_file(self, dts_original_path: str) -> None: