Meshtastic build manifest (#8248)

extra_scripts/esp32_extra.py

@@ -0,0 +1,80 @@
+#!/usr/bin/env python3
+# trunk-ignore-all(ruff/F821)
+# trunk-ignore-all(flake8/F821): For SConstruct imports
+# trunk-ignore-all(ruff/E402): Hacky esptool import
+# trunk-ignore-all(flake8/E402): Hacky esptool import
+import sys
+from os.path import join
+
+Import("env")
+platform = env.PioPlatform()
+
+sys.path.append(join(platform.get_package_dir("tool-esptoolpy")))
+import esptool
+
+
+def esp32_create_combined_bin(source, target, env):
+    # this sub is borrowed from ESPEasy build toolchain. It's licensed under GPL V3
+    # https://github.com/letscontrolit/ESPEasy/blob/mega/tools/pio/post_esp32.py
+    print("Generating combined binary for serial flashing")
+
+    app_offset = 0x10000
+
+    new_file_name = env.subst("$BUILD_DIR/${PROGNAME}.factory.bin")
+    sections = env.subst(env.get("FLASH_EXTRA_IMAGES"))
+    firmware_name = env.subst("$BUILD_DIR/${PROGNAME}.bin")
+    chip = env.get("BOARD_MCU")
+    board = env.BoardConfig()
+    flash_size = board.get("upload.flash_size")
+    flash_freq = board.get("build.f_flash", "40m")
+    flash_freq = flash_freq.replace("000000L", "m")
+    flash_mode = board.get("build.flash_mode", "dio")
+    memory_type = board.get("build.arduino.memory_type", "qio_qspi")
+    if flash_mode == "qio" or flash_mode == "qout":
+        flash_mode = "dio"
+    if memory_type == "opi_opi" or memory_type == "opi_qspi":
+        flash_mode = "dout"
+    cmd = [
+        "--chip",
+        chip,
+        "merge_bin",
+        "-o",
+        new_file_name,
+        "--flash_mode",
+        flash_mode,
+        "--flash_freq",
+        flash_freq,
+        "--flash_size",
+        flash_size,
+    ]
+
+    print("    Offset | File")
+    for section in sections:
+        sect_adr, sect_file = section.split(" ", 1)
+        print(f" -  {sect_adr} | {sect_file}")
+        cmd += [sect_adr, sect_file]
+
+    print(f" - {hex(app_offset)} | {firmware_name}")
+    cmd += [hex(app_offset), firmware_name]
+
+    print("Using esptool.py arguments: %s" % " ".join(cmd))
+
+    esptool.main(cmd)
+
+
+env.AddPostAction("$BUILD_DIR/${PROGNAME}.bin", esp32_create_combined_bin)
+
+esp32_kind = env.GetProjectOption("custom_esp32_kind")
+if esp32_kind == "esp32":
+    # Free up some IRAM by removing auxiliary SPI flash chip drivers.
+    # Wrapped stub symbols are defined in src/platform/esp32/iram-quirk.c.
+    env.Append(
+        LINKFLAGS=[
+            "-Wl,--wrap=esp_flash_chip_gd",
+            "-Wl,--wrap=esp_flash_chip_issi",
+            "-Wl,--wrap=esp_flash_chip_winbond",
+        ]
+    )
+else:
+    # For newer ESP32 targets, using newlib nano works better.
+    env.Append(LINKFLAGS=["--specs=nano.specs", "-u", "_printf_float"])