diff options
Diffstat (limited to 'scripts/Kconfig.include')
| -rw-r--r-- | scripts/Kconfig.include | 14 |
1 files changed, 13 insertions, 1 deletions
diff --git a/scripts/Kconfig.include b/scripts/Kconfig.include index 87ff1dcc6bd5..d4adfbe42690 100644 --- a/scripts/Kconfig.include +++ b/scripts/Kconfig.include @@ -1,3 +1,4 @@ +# SPDX-License-Identifier: GPL-2.0-only # Kconfig helper macros # Convenient variables @@ -18,13 +19,24 @@ if-success = $(shell,{ $(1); } >/dev/null 2>&1 && echo "$(2)" || echo "$(3)") # Return y if <command> exits with 0, n otherwise success = $(if-success,$(1),y,n) +# $(failure,<command>) +# Return n if <command> exits with 0, y otherwise +failure = $(if-success,$(1),n,y) + # $(cc-option,<flag>) # Return y if the compiler supports <flag>, n otherwise -cc-option = $(success,$(CC) -Werror $(1) -E -x c /dev/null -o /dev/null) +cc-option = $(success,$(CC) -Werror $(CLANG_FLAGS) $(1) -E -x c /dev/null -o /dev/null) # $(ld-option,<flag>) # Return y if the linker supports <flag>, n otherwise ld-option = $(success,$(LD) -v $(1)) +# check if $(CC) and $(LD) exist +$(error-if,$(failure,command -v $(CC)),compiler '$(CC)' not found) +$(error-if,$(failure,command -v $(LD)),linker '$(LD)' not found) + +# Fail if the linker is gold as it's not capable of linking the kernel proper +$(error-if,$(success, $(LD) -v | grep -q gold), gold linker '$(LD)' not supported) + # gcc version including patch level gcc-version := $(shell,$(srctree)/scripts/gcc-version.sh $(CC)) |