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import os
c, link, asm, utils = emk.module("c", "link", "asm", "utils")
default_compile_flags = ["-fvisibility=hidden", "-Wall", "-Wextra", "-Wshadow", "-Werror", "-Wno-missing-field-initializers", "-Wno-unused-parameter", \
"-Wno-comment", "-Wno-unused", "-Wno-unknown-pragmas"]
default_link_flags = []
opt_flags = {"dbg":["-g"], "std":["-O2"], "max":["-O3"], "small":["-Os"]}
opt_link_flags = {"dbg":[], "std":[], "max":[], "small":[]}
c_flags = ["-std=c99"]
cxx_flags = ["-std=c++11", "-Wno-reorder", "-fno-rtti", "-fno-exceptions"]
c_link_flags = []
cxx_link_flags = ["-fno-rtti", "-fno-exceptions"]
def setup_build_dir():
build_arch = None
if "arch" in emk.options:
build_arch = emk.options["arch"]
elif not emk.cleaning:
build_arch = "osx"
emk.options["arch"] = build_arch
opt_level = None
if "opt" in emk.options:
level = emk.options["opt"]
if level in opt_flags:
opt_level = level
else:
emk.log.warning("Unknown optimization level '%s'" % (level))
elif not emk.cleaning:
opt_level = "dbg"
emk.options["opt"] = opt_level
dirs = ["__build__"]
if build_arch:
dirs.append(build_arch)
if opt_level:
dirs.append(opt_level)
emk.build_dir = os.path.join(*dirs)
def setup_osx():
global c
global link
flags = [("-arch", "x86_64"), "-fno-common", "-Wnewline-eof"]
c.flags.extend(flags)
c.cxx.flags += ["-stdlib=libc++"]
link.cxx.flags += ["-stdlib=libc++"]
link_flags = [("-arch", "x86_64")]
link.local_flags.extend(link_flags)
def setup_avr():
global c
global link
c.compiler = c.GccCompiler("/Projects/avr-tools/bin/avr-")
c.flags += ["-mmcu=atmega256rfr2", "-ffunction-sections", "-fdata-sections"]
link.linker = link.GccLinker("/Projects/avr-tools/bin/avr-")
link.flags += ["-mmcu=atmega256rfr2", "-mrelax", "-Wl,--gc-sections"]
link.strip = True
def setup_arm_thumb():
global c
global link
global asm
global utils
asm.assembler = asm.GccAssembler("/cross/arm_cortex/bin/arm-none-eabi-")
c.compiler = c.GccCompiler("/cross/arm_cortex/bin/arm-none-eabi-")
link.linker = link.GccLinker("/cross/arm_cortex/bin/arm-none-eabi-")
c.flags.extend(["-mcpu=cortex-m0", "-mthumb", "-ffunction-sections", "-fdata-sections", "-fno-builtin-fprintf", "-fno-builtin-printf"])
c.defines["LPC11XX"] = 1
link.local_flags.extend(["-mcpu=cortex-m0", "-mthumb", "-nostartfiles", "-nostdlib", "-Wl,--gc-sections"])
link.local_flags.extend(["-Tflash.lds", "-L/Projects/lpc11xx/core", "/Projects/lpc11xx/core/" + emk.build_dir + "/board_cstartup.o"])
link.local_syslibs += ["gcc"]
link.depdirs += ["/Projects/lpc11xx/stdlib"]
def do_objcopy(produces, requires):
utils.call("/cross/arm_cortex/bin/arm-none-eabi-objcopy", "-O", "binary", requires[0], produces[0])
def handle_exe(path):
emk.depend(path, "/Projects/lpc11xx/core/" + emk.build_dir + "/board_cstartup.o")
emk.rule(do_objcopy, path + ".bin", path, cwd_safe=True, ex_safe=True)
emk.autobuild(path + ".bin")
link.exe_funcs.append(handle_exe)
link.strip = True
emk.recurse("/Projects/lpc11xx/core")
def setup_linux_rpi():
global c
global link
c.compiler = c.GccCompiler("/Volumes/xtools/arm-none-linux-gnueabi/bin/arm-none-linux-gnueabi-")
link.linker = link.GccLinker("/Volumes/xtools/arm-none-linux-gnueabi/bin/arm-none-linux-gnueabi-")
c.flags.extend(["-fomit-frame-pointer"])
setup_build_dir()
setup_funcs = {"osx":setup_osx, "avr":setup_avr, "arm_thumb":setup_arm_thumb, "rpi": setup_linux_rpi}
if not emk.cleaning:
build_arch = emk.options["arch"]
opt_level = emk.options["opt"]
c.flags.extend(default_compile_flags)
c.flags.extend(opt_flags[opt_level])
c.c.flags.extend(c_flags)
c.cxx.flags.extend(cxx_flags)
link.local_flags.extend(default_link_flags)
link.local_flags.extend(opt_link_flags[opt_level])
link.c.local_flags.extend(c_link_flags)
link.cxx.local_flags.extend(cxx_link_flags)
c.include_dirs.append("$:proj:$")
if build_arch in setup_funcs:
setup_funcs[build_arch]()
else:
raise emk.BuildError("Unknown target arch '%s'" % (build_arch))
c.defines["TARGET_ARCH_" + build_arch.upper()] = 1
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