Use custom "ElfToBin" builder for PIO (#6091)

Author: ivankravets

tools/platformio-build.py

@@ -24,13 +24,10 @@
 
 # Extends: https://github.com/platformio/platform-espressif8266/blob/develop/builder/main.py
 
-import os
-import subprocess
-
 from os.path import isdir, join
 
-from SCons import Builder, Util
-from SCons.Script import DefaultEnvironment
+from SCons import Util
+from SCons.Script import Builder, DefaultEnvironment
 
 
 def scons_patched_match_splitext(path, suffixes=None):
@@ -127,7 +124,26 @@ def scons_patched_match_splitext(path, suffixes=None):
 
     LIBSOURCE_DIRS=[
         join(FRAMEWORK_DIR, "libraries")
-    ]
+    ],
+
+    BUILDERS=dict(
+        ElfToBin=Builder(
+            action=env.VerboseAction(" ".join([
+                '"$PYTHONEXE"',
+                '"%s"' % env.subst(join(FRAMEWORK_DIR, "tools", "elf2bin.py")),
+                "--eboot", '"%s"' % env.subst(join(
+                    FRAMEWORK_DIR, "bootloaders", "eboot", "eboot.elf")),
+                "--app", '"%s"' % "$SOURCE",
+                "--flash_mode", "$BOARD_FLASH_MODE",
+                "--flash_freq", "${__get_board_f_flash(__env__)}",
+                "--flash_size", "${__get_flash_size(__env__)}",
+                "--path", '"%s"' % env.subst(join(
+                    platform.get_package_dir("toolchain-xtensa"), "bin")),
+                "--out", '"$TARGET"'
+            ]), "Building $TARGET"),
+            suffix=".bin"
+        )
+    )
 )
 
 # copy CCFLAGS to ASFLAGS (-x assembler-with-cpp mode)
@@ -141,18 +157,18 @@ def scons_patched_match_splitext(path, suffixes=None):
 if "PIO_FRAMEWORK_ARDUINO_ESPRESSIF_SDK3" in flatten_cppdefines:
     env.Append(
         CPPDEFINES=[("NONOSDK3V0", 1)],
-        LIBPATH=[join(FRAMEWORK_DIR, "tools", "sdk", "lib", "NONOSDK3V0"),]
+        LIBPATH=[join(FRAMEWORK_DIR, "tools", "sdk", "lib", "NONOSDK3V0")]
     )
 elif "PIO_FRAMEWORK_ARDUINO_ESPRESSIF_SDK22x" in flatten_cppdefines:
     env.Append(
         CPPDEFINES=[("NONOSDK22x", 1)],
-        LIBPATH=[join(FRAMEWORK_DIR, "tools", "sdk", "lib", "NONOSDK22x"),]
+        LIBPATH=[join(FRAMEWORK_DIR, "tools", "sdk", "lib", "NONOSDK22x")]
     )
 # PIO_FRAMEWORK_ARDUINO_ESPRESSIF_SDK22x (default)
 else:
     env.Append(
         CPPDEFINES=[("NONOSDK221", 1)],
-        LIBPATH=[join(FRAMEWORK_DIR, "tools", "sdk", "lib", "NONOSDK221"),]
+        LIBPATH=[join(FRAMEWORK_DIR, "tools", "sdk", "lib", "NONOSDK221")]
     )
 
 #