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Cleanup emk files

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This commit is contained in:
Ken MacKay
2020-10-07 12:26:35 -07:00
parent 01dd76e728
commit 979d722c99
2 changed files with 22 additions and 17 deletions
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emk_project.py
+18 -13
View File
@@ -12,6 +12,11 @@ cxx_flags = ["-std=c++11", "-Wno-reorder", "-fno-rtti", "-fno-exceptions"]
c_link_flags = [] c_link_flags = []
cxx_link_flags = ["-fno-rtti", "-fno-exceptions"] cxx_link_flags = ["-fno-rtti", "-fno-exceptions"]
if "root" in emk.options:
root = emk.options["root"]
else:
root = "/"
def setup_build_dir(): def setup_build_dir():
build_arch = None build_arch = None
if "arch" in emk.options: if "arch" in emk.options:
@@ -54,9 +59,9 @@ def setup_avr():
global c global c
global link global link
c.compiler = c.GccCompiler("/Projects/avr-tools/bin/avr-") c.compiler = c.GccCompiler(root + "Projects/avr-tools/bin/avr-")
c.flags += ["-mmcu=atmega256rfr2", "-ffunction-sections", "-fdata-sections"] c.flags += ["-mmcu=atmega256rfr2", "-ffunction-sections", "-fdata-sections"]
link.linker = link.GccLinker("/Projects/avr-tools/bin/avr-") link.linker = link.GccLinker(root + "Projects/avr-tools/bin/avr-")
link.flags += ["-mmcu=atmega256rfr2", "-mrelax", "-Wl,--gc-sections"] link.flags += ["-mmcu=atmega256rfr2", "-mrelax", "-Wl,--gc-sections"]
link.strip = True link.strip = True
@@ -66,30 +71,30 @@ def setup_arm_thumb():
global asm global asm
global utils global utils
asm.assembler = asm.GccAssembler("/cross/arm_cortex/bin/arm-none-eabi-") asm.assembler = asm.GccAssembler(root + "cross/arm_cortex/bin/arm-none-eabi-")
c.compiler = c.GccCompiler("/cross/arm_cortex/bin/arm-none-eabi-") c.compiler = c.GccCompiler(root + "cross/arm_cortex/bin/arm-none-eabi-")
link.linker = link.GccLinker("/cross/arm_cortex/bin/arm-none-eabi-") link.linker = link.GccLinker(root + "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.flags.extend(["-mcpu=cortex-m0", "-mthumb", "-ffunction-sections", "-fdata-sections", "-fno-builtin-fprintf", "-fno-builtin-printf"])
c.defines["LPC11XX"] = 1 c.defines["LPC11XX"] = 1
link.local_flags.extend(["-mcpu=cortex-m0", "-mthumb", "-nostartfiles", "-nostdlib", "-Wl,--gc-sections"]) 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_flags.extend(["-Tflash.lds", "-L" + root + "Projects/lpc11xx/core", root + "Projects/lpc11xx/core/" + emk.build_dir + "/board_cstartup.o"])
link.local_syslibs += ["gcc"] link.local_syslibs += ["gcc"]
link.depdirs += ["/Projects/lpc11xx/stdlib"] link.depdirs += [root + "Projects/lpc11xx/stdlib"]
def do_objcopy(produces, requires): def do_objcopy(produces, requires):
utils.call("/cross/arm_cortex/bin/arm-none-eabi-objcopy", "-O", "binary", requires[0], produces[0]) utils.call(root + "cross/arm_cortex/bin/arm-none-eabi-objcopy", "-O", "binary", requires[0], produces[0])
def handle_exe(path): def handle_exe(path):
emk.depend(path, "/Projects/lpc11xx/core/" + emk.build_dir + "/board_cstartup.o") emk.depend(path, root + "Projects/lpc11xx/core/" + emk.build_dir + "/board_cstartup.o")
emk.rule(do_objcopy, path + ".bin", path, cwd_safe=True, ex_safe=True) emk.rule(do_objcopy, path + ".bin", path, cwd_safe=True, ex_safe=True)
emk.autobuild(path + ".bin") emk.autobuild(path + ".bin")
link.exe_funcs.append(handle_exe) link.exe_funcs.append(handle_exe)
link.strip = True link.strip = True
emk.recurse("/Projects/lpc11xx/core") emk.recurse(root + "Projects/lpc11xx/core")
def setup_linux_rpi(): def setup_linux_rpi():
global c global c
@@ -97,7 +102,7 @@ def setup_linux_rpi():
c.compiler = c.GccCompiler("/Volumes/xtools/arm-none-linux-gnueabi/bin/arm-none-linux-gnueabi-") 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-") link.linker = link.GccLinker("/Volumes/xtools/arm-none-linux-gnueabi/bin/arm-none-linux-gnueabi-")
c.flags.extend(["-fomit-frame-pointer"]) c.flags.extend(["-fomit-frame-pointer"])
setup_build_dir() setup_build_dir()
uECC.h
+4 -4
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@@ -38,12 +38,12 @@ faster somewhat faster, but increases the code size. */
#endif #endif
/* uECC_VLI_NATIVE_LITTLE_ENDIAN - If enabled (defined as nonzero), this will switch to native /* uECC_VLI_NATIVE_LITTLE_ENDIAN - If enabled (defined as nonzero), this will switch to native
little-endian format for *all* arrays passed in and out of the public API. This includes public little-endian format for *all* arrays passed in and out of the public API. This includes public
and private keys, shared secrets, signatures and message hashes. and private keys, shared secrets, signatures and message hashes.
Using this switch reduces the amount of call stack memory used by uECC, since less intermediate Using this switch reduces the amount of call stack memory used by uECC, since less intermediate
translations are required. translations are required.
Note that this will *only* work on native little-endian processors and it will treat the uint8_t Note that this will *only* work on native little-endian processors and it will treat the uint8_t
arrays passed into the public API as word arrays, therefore requiring the provided byte arrays arrays passed into the public API as word arrays, therefore requiring the provided byte arrays
to be word aligned on architectures that do not support unaligned accesses. to be word aligned on architectures that do not support unaligned accesses.
IMPORTANT: Keys and signatures generated with uECC_VLI_NATIVE_LITTLE_ENDIAN=1 are incompatible IMPORTANT: Keys and signatures generated with uECC_VLI_NATIVE_LITTLE_ENDIAN=1 are incompatible
with keys and signatures generated with uECC_VLI_NATIVE_LITTLE_ENDIAN=0; all parties must use with keys and signatures generated with uECC_VLI_NATIVE_LITTLE_ENDIAN=0; all parties must use