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toolchain.inc: Update comments 

This fixes some nits that were pointed out in a previous review, and
adds a couple additional comments to explain what is happening.

Change-Id: I1ca4bf59ba79744f79fbe73f4e226feeea1cc2ab
Signed-off-by: Martin Roth <martinroth@google.com>
Reviewed-on: https://review.coreboot.org/13019
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
This commit is contained in:
Martin Roth 2016-01-15 14:56:06 -07:00
parent 4e7e987b24
commit a656362402
1 changed files with 13 additions and 7 deletions
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16
toolchain.inc
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@ -152,13 +152,14 @@ $(call init_stages)
# Test for coreboot toolchain (except when explicitly not requested)
ifneq ($(NOCOMPILE),1)
# only run if we're doing a build (not for tests, kconfig, ...)
# Only run if we're doing a build (not for tests, kconfig, ...)
# rationale: gcc versions by Linux distributions tend to be quite messed up
# llvm/clang also needs patches supplied by the coreboot build
COMPILERFAIL:=0
IASLFAIL:=0
ifneq ($(CONFIG_ANY_TOOLCHAIN),y)
# Verify that the coreboot toolchain is being used.
$(foreach arch,$(sort $(foreach stage,\
$(COREBOOT_STANDARD_STAGES),$(ARCH-$(stage)-y))), \
$(if $(shell if [ -n "$(CC_$(arch))" ]; then \
@ -167,7 +168,7 @@ $(foreach arch,$(sort $(foreach stage,\
$(eval COMPILERFAIL:=1)\
$(warning The coreboot toolchain for '$(arch)'\
architecture was not found.)))
#if iasl doesn't match the current coreboot version, fail the test
# If iasl doesn't match the current coreboot version, fail the test
# TODO: Figure out if iasl is even needed for the build.
$(if $(shell if [ -n "$(IASL)" ]; then \
$(IASL) -v 2>&1 | grep -q "$(shell util/crossgcc/buildgcc -s iasl)" || \
@ -176,17 +177,20 @@ $(if $(shell if [ -n "$(IASL)" ]; then \
$(warning The coreboot toolchain version of iasl \
'$(shell util/crossgcc/buildgcc -s iasl)' was not found))
else #$(CONFIG_ANY_TOOLCHAIN)
# If the coreboot toolchain isn't being used, verify that there is A toolchain
$(foreach arch,$(sort \
$(foreach stage,$(COREBOOT_STANDARD_STAGES),$(ARCH-$(stage)-y))), \
$(if $(CC_$(arch)),, $(eval COMPILERFAIL:=1) \
$(warning No compiler found for '$(arch)' architecture. \
Install one or use the coreboot toolchain?)) )
#if iasl isn't present, fail
# If iasl isn't present, fail
# TODO: Figure out if iasl is even needed for the build.
$(if $(IASL),, $(eval COMPILERFAIL:=1)$(eval IASLFAIL:=1) \
$(warning iasl not found. \
Please install it or use the coreboot toolchain.))
endif
# If the compiler check failed, print out warnings
ifeq ($(COMPILERFAIL),1)
ifneq ($(XGCCPATH),)
$(warning )
@ -213,6 +217,8 @@ endif #($(COMPILERFAIL),1)
endif #($(NOCOMPILE),1)
# Run the toolchain version checks if the requested target is 'test-toolchain'
# Checks the versions of GCC, binutils, clang, and IASL
ifneq ($(MAKECMDGOALS),)
ifneq ($(filter test-toolchain,$(MAKECMDGOALS)),)
$(foreach arch, $(ARCH_SUPPORTED), \
@ -244,5 +250,5 @@ $(if $(shell if [ -n "$(IASL)" ]; then $(IASL) -v 2>&1 | \
$(eval COMPILER_OUT_OF_DATE:=1)\
$(warning The coreboot toolchain version of iasl \
is not the current version))
endif # ifneq ($(filter crossgcc_check%,$(MAKECMDGOALS)),)
endif # ifneq ($(MAKECMDGOALS),)
endif #($(filter crossgcc_check%,$(MAKECMDGOALS)),)
endif #($(MAKECMDGOALS),)