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scripts: Convert gen_offset_header to Python

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By having this as a Python script rather than a host executable, this
should simplify the build process on non-Unix platforms.

With this change, pyelftools is now required to build Zephyr.  Please
consult the getting started documentation for your host platform for
installation instructions.

Jira: ZEP-2062

Signed-off-by: Leandro Pereira <leandro.pereira@intel.com>
This commit is contained in:
Leandro Pereira 2017-07-24 10:19:49 -07:00 • committed by Andrew Boie
commit f5a8d498ea
8 changed files with 74 additions and 1057 deletions
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8
Makefile
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@ -320,10 +320,8 @@ GDB = $(CROSS_COMPILE)gdb
READELF = $(CROSS_COMPILE)readelf
AWK = awk
ifeq ($(PREBUILT_HOST_TOOLS),)
GENOFFSET_H = scripts/gen_offset_header/gen_offset_header
FIXDEP = scripts/basic/fixdep
else
GENOFFSET_H = $(PREBUILT_HOST_TOOLS)/gen_offset_header
ifneq ($(filter host-tools, $(MAKECMDGOALS)),)
FIXDEP = scripts/basic/fixdep
else
@ -416,7 +414,7 @@ exports += VERSION_MAJOR VERSION_MINOR PATCHLEVEL VERSION_RESERVED EXTRAVERSION
exports += KERNELRELEASE KERNELVERSION
exports += ARCH CONFIG_SHELL HOSTCC HOSTCFLAGS CROSS_COMPILE AS LD CC CXX
exports += CPP AR NM STRIP OBJCOPY OBJDUMP GDB
exports += MAKE AWK INSTALLKERNEL PERL PYTHON GENOFFSET_H
exports += MAKE AWK INSTALLKERNEL PERL PYTHON
exports += HOSTCXX HOSTCXXFLAGS CHECK CHECKFLAGS
exports += KBUILD_CPPFLAGS NOSTDINC_FLAGS ZEPHYRINCLUDE OBJCOPYFLAGS LDFLAGS
@ -456,7 +454,6 @@ PHONY += scripts_basic
ifeq ($(PREBUILT_HOST_TOOLS),)
scripts_basic:
$(Q)$(MAKE) $(build)=scripts/basic
$(Q)$(MAKE) $(build)=scripts/gen_offset_header
else
scripts_basic:
endif
@ -1278,10 +1275,9 @@ host-tools:
$(Q)$(MAKE) $(build)=scripts/basic
$(Q)$(MAKE) $(build)=scripts/kconfig standalone
$(Q)$(MAKE) $(build)=scripts/gen_idt
$(Q)$(MAKE) $(build)=scripts/gen_offset_header
@mkdir -p ${ZEPHYR_BASE}/bin
@cp scripts/basic/fixdep scripts/gen_idt/gen_idt scripts/kconfig/conf \
scripts/gen_offset_header/gen_offset_header ${ZEPHYR_BASE}/bin
${ZEPHYR_BASE}/bin
# Documentation targets