Initial support for MBED Framework

2015-03-09 12:27:54 +02:00
1 parent 4a8cd9914b
commit d3b9322d3b
@@ -0,0 +1,140 @@
+# Copyright (C) Ivan Kravets <me@ikravets.com>
+# See LICENSE for details.
+
+"""
+    Build script for Mbed Framework
+"""
+
+import xml.etree.ElementTree as ElementTree
+from binascii import crc32
+from os.path import join, normpath
+
+from SCons.Script import DefaultEnvironment
+
+env = DefaultEnvironment()
+
+BOARD_OPTS = env.get("BOARD_OPTIONS", {}).get("build", {})
+
+env.Replace(
+    PLATFORMFW_DIR=join("$PIOPACKAGES_DIR", "framework-mbed")
+)
+
+MBED_VARIANTS = {
+    "stm32f3discovery": "DISCO_F303VC",
+    "stm32f4discovery": "DISCO_F407VG",
+    "stm32f429discovery": "DISCO_F429ZI",
+    "blueboard_lpc11u24": "LPC11U24",
+    "dipcortexm0": "LPC11U24",
+    "seeeduinoArchPro": "ARCH_PRO",
+    "ubloxc027": "UBLOX_C027",
+    "lpc1114fn28": "LPC1114",
+    "lpc11u35": "LPC11U35_401",
+    "mbuino": "LPC11U24",
+    "nrf51_mkit": "NRF51822",
+    "redBearLab": "NRF51822",
+    "nrf51-dt": "NRF51_DK",
+    "redBearLabBLENano": "NRF51822",
+    "wallBotBLE": "NRF51822",
+    "frdm_kl25z": "KL25Z",
+    "frdm_kl46z": "KL46Z",
+    "frdm_k64f": "K64F",
+    "frdm_kl05z": "KL05Z",
+    "frdm_k20d50m": "K20D50M",
+    "frdm_k22f": "K22F"
+}
+
+
+def parse_eix_file(filename):
+    result = {}
+    paths = (
+        ("CFLAGS", "./Target/Source/CC/Switch"),
+        ("CXXFLAGS", "./Target/Source/CPPC/Switch"),
+        ("CPPDEFINES", "./Target/Source/Symbols/Symbol"),
+        ("FILES", "./Target/Files/File"),
+        ("LINKFLAGS", "./Target/Source/LD/Switch"),
+        ("STDLIBS", "./Target/Source/Syslibs/Library"),
+        ("LDSCRIPT_PATH", "./Target/Source/Scriptfile"),
+        ("CPPPATH", "./Target/Compiler/Includepaths/Includepath")
+    )
+
+    tree = ElementTree.parse(filename)
+
+    for (key, path) in paths:
+        if key not in result:
+            result[key] = []
+
+        for node in tree.findall(path):
+            _nkeys = node.keys()
+            result[key].append(
+                node.get(_nkeys[0]) if len(_nkeys) == 1 else node.attrib)
+
+    return result
+
+
+def get_source_files(flist):
+    files = []
+    for f in flist:
+        if f['type'] == "h" or not f['name'].startswith("mbed"):
+            continue
+        files.append(join("$BUILD_DIR", "FrameworkMBED", f['name'][5:]))
+    return files
+
+
+def get_build_flags(data):
+    flags = {}
+    cflags = set(data.get("CFLAGS", []))
+    cxxflags = set(data.get("CXXFLAGS", []))
+    cppflags = set(cflags & cxxflags)
+    flags['CPPFLAGS'] = list(cppflags)
+    flags['CXXFLAGS'] = list(cxxflags - cppflags)
+    flags['CFLAGS'] = list(cflags - cppflags)
+    return flags
+
+board_type = env.subst("$BOARD")
+variant = MBED_VARIANTS[
+    board_type] if board_type in MBED_VARIANTS else board_type.upper()
+eixdata = parse_eix_file(
+    join(env.subst("$PLATFORMFW_DIR"), "variant", variant, "%s.eix" % variant))
+
+build_flags = get_build_flags(eixdata)
+env.Replace(
+    CPPFLAGS=build_flags.get("CPPFLAGS", []),
+    CFLAGS=build_flags.get("CFLAGS", []),
+    CXXFLAGS=build_flags.get("CXXFLAGS", []),
+    LINKFLAGS=eixdata.get("LINKFLAGS", []),
+    CPPDEFINES=[define for define in eixdata.get("CPPDEFINES", [])],
+    LDSCRIPT_PATH=normpath(join(
+        "$PLATFORMFW_DIR", "core", eixdata.get("LDSCRIPT_PATH")[0][5:]))
+)
+
+# Hook for K64F and K22F
+if board_type in ("frdm_k22f", "frdm_k64f"):
+    env.Append(
+        LINKFLAGS=["-Wl,--start-group"]
+    )
+
+for lib_path in eixdata.get("CPPPATH"):
+    _vdir = join("$BUILD_DIR", "FrameworkMbedInc%d" % crc32(lib_path))
+    env.VariantDir(
+        _vdir,
+        join("$PLATFORMFW_DIR", "core", lib_path[5:])
+    )
+    env.Append(CPPPATH=[_vdir])
+
+
+#
+# Target: Build MBED Library
+#
+
+libs = [l for l in eixdata.get("STDLIBS", []) if l not in env.get("LIBS")]
+
+env.VariantDir(
+    join("$BUILD_DIR", "FrameworkMBED"),
+    join("$PLATFORMFW_DIR", "core")
+)
+libs.append(env.Library(
+    join("$BUILD_DIR", "FrameworkMBED"),
+    get_source_files(eixdata.get("FILES", []))
+))
+
+env.Append(LIBS=libs)