kbuild: replace sed with $(subst ) or $(patsubst )

For simple text replacement, it is better to use a built-in function
instead of sed if possible. You can save one process forking.

I do not mean to replace all sed invocations because GNU Make itself
does not support regular expression (unless you use guile).

I just replaced simple ones.

Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
This commit is contained in:
Masahiro Yamada 2021-03-14 15:15:50 +09:00
parent 879a320900
commit 6e0839fda3
2 changed files with 2 additions and 2 deletions

View File

@ -48,7 +48,7 @@ define rule_chkdt
$(call cmd,mk_schema)
endef
DT_DOCS = $(shell $(find_cmd) | sed -e 's|^$(srctree)/||')
DT_DOCS = $(patsubst $(srctree)/%,%,$(shell $(find_cmd)))
override DTC_FLAGS := \
-Wno-avoid_unnecessary_addr_size \

View File

@ -574,7 +574,7 @@ endif
# Some architectures define CROSS_COMPILE in arch/$(SRCARCH)/Makefile.
# CC_VERSION_TEXT is referenced from Kconfig (so it needs export),
# and from include/config/auto.conf.cmd to detect the compiler upgrade.
CC_VERSION_TEXT = $(shell $(CC) --version 2>/dev/null | head -n 1 | sed 's/\#//g')
CC_VERSION_TEXT = $(subst $(pound),,$(shell $(CC) --version 2>/dev/null | head -n 1))
ifneq ($(findstring clang,$(CC_VERSION_TEXT)),)
ifneq ($(CROSS_COMPILE),)