Cleanup emk files
diff --git a/emk_project.py b/emk_project.py
index 940fadc..957dd79 100644
--- a/emk_project.py
+++ b/emk_project.py
@@ -12,6 +12,11 @@
c_link_flags = []
cxx_link_flags = ["-fno-rtti", "-fno-exceptions"]
+if "root" in emk.options:
+ root = emk.options["root"]
+else:
+ root = "/"
+
def setup_build_dir():
build_arch = None
if "arch" in emk.options:
@@ -54,9 +59,9 @@
global c
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"]
- 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.strip = True
@@ -66,30 +71,30 @@
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-")
+ asm.assembler = asm.GccAssembler(root + "cross/arm_cortex/bin/arm-none-eabi-")
+ c.compiler = c.GccCompiler(root + "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.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_flags.extend(["-Tflash.lds", "-L" + root + "Projects/lpc11xx/core", root + "Projects/lpc11xx/core/" + emk.build_dir + "/board_cstartup.o"])
link.local_syslibs += ["gcc"]
- link.depdirs += ["/Projects/lpc11xx/stdlib"]
+ link.depdirs += [root + "Projects/lpc11xx/stdlib"]
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):
- 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.autobuild(path + ".bin")
link.exe_funcs.append(handle_exe)
link.strip = True
-
- emk.recurse("/Projects/lpc11xx/core")
+
+ emk.recurse(root + "Projects/lpc11xx/core")
def setup_linux_rpi():
global c
@@ -97,7 +102,7 @@
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()
diff --git a/uECC.h b/uECC.h
index 43a19d6..b9243b9 100644
--- a/uECC.h
+++ b/uECC.h
@@ -38,12 +38,12 @@
#endif
/* 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
-and private keys, shared secrets, signatures and message hashes.
+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.
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
-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.
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
