Merge pull request #187 from valeros/develop

Add GDB as alternative uploader to ststm32 platform // Resolve #175

platformio/builder/scripts/ststm32.py

@@ -6,15 +6,36 @@
 """
 
 import platform
-from os.path import join
+from os.path import isfile, join
 
 from SCons.Script import (COMMAND_LINE_TARGETS, AlwaysBuild, Default,
-                          DefaultEnvironment, SConscript)
+                          DefaultEnvironment, Exit, SConscript)
 
 env = DefaultEnvironment()
 
 SConscript(env.subst(join("$PIOBUILDER_DIR", "scripts", "basearm.py")))
 
+if env['UPLOAD_PROTOCOL'] == "gdb":
+    if not isfile(join(env.subst("$PROJECT_DIR"), "upload.gdb")):
+        Exit(
+            "You are using GDB as firmware uploader. "
+            "Please specify upload commands in upload.gdb "
+            "file in project directory!"
+        )
+    env.Replace(
+        UPLOADER=join(
+            "$PIOPACKAGES_DIR", "toolchain-gccarmnoneeabi",
+            "bin", "arm-none-eabi-gdb"
+        ),
+        UPLOADERFLAGS=[
+            join("$BUILD_DIR", "firmware.elf"),
+            "-batch",
+            "-x", join("$PROJECT_DIR", "upload.gdb")
+        ],
+
+        UPLOADCMD="$UPLOADER $UPLOADERFLAGS"
+    )
+else:
     env.Replace(
         UPLOADER=join("$PIOPACKAGES_DIR", "tool-stlink", "st-flash"),
         UPLOADERFLAGS=[