Initial commit. Unusable Marlin 2.0.5.3 core without any custimization.

Marlin/src/HAL/STM32F1/build_flags.py

@@ -0,0 +1,53 @@
+from __future__ import print_function
+import sys
+
+#dynamic build flags for generic compile options
+if __name__ == "__main__":
+  args = " ".join([ "-std=gnu11",
+                    "-Os",
+                    "-mcpu=cortex-m3",
+                    "-mthumb",
+
+                    "-fsigned-char",
+                    "-fno-move-loop-invariants",
+                    "-fno-strict-aliasing",
+
+                    "--specs=nano.specs",
+                    "--specs=nosys.specs",
+
+                    "-IMarlin/src/HAL/STM32F1",
+
+                    "-MMD",
+                    "-MP",
+                    "-DTARGET_STM32F1"
+                  ])
+
+  for i in range(1, len(sys.argv)):
+    args += " " + sys.argv[i]
+
+  print(args)
+
+# extra script for linker options
+else:
+  from SCons.Script import DefaultEnvironment
+  env = DefaultEnvironment()
+  env.Append(
+      ARFLAGS=["rcs"],
+
+      ASFLAGS=["-x", "assembler-with-cpp"],
+
+      CXXFLAGS=[
+          "-fabi-version=0",
+          "-fno-use-cxa-atexit",
+          "-fno-threadsafe-statics"
+      ],
+      LINKFLAGS=[
+          "-Os",
+          "-mcpu=cortex-m3",
+          "-ffreestanding",
+          "-mthumb",
+          "--specs=nano.specs",
+          "--specs=nosys.specs",
+          "-u_printf_float",
+      ],
+  )