kbuild: introduce escsq to escapre single quotes
This makes things a little bit more reader friendly and gvim is less
confused.
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
diff --git a/scripts/Kbuild.include b/scripts/Kbuild.include
index db3c708..0168d6c 100644
--- a/scripts/Kbuild.include
+++ b/scripts/Kbuild.include
@@ -3,6 +3,7 @@
# Convinient variables
comma := ,
+squote := '
empty :=
space := $(empty) $(empty)
@@ -12,6 +13,10 @@
depfile = $(subst $(comma),_,$(@D)/.$(@F).d)
###
+# Escape single quote for use in echo statements
+escsq = $(subst $(squote),'\$(squote)',$1)
+
+###
# filechk is used to check if the content of a generated file is updated.
# Sample usage:
# define filechk_sample
@@ -47,7 +52,7 @@
# If quiet is set, only print short version of command
cmd = @$(if $($(quiet)cmd_$(1)),\
- echo ' $(subst ','\'',$($(quiet)cmd_$(1)))' &&) $(cmd_$(1))
+ echo ' $(call escsq,$($(quiet)cmd_$(1)))' &&) $(cmd_$(1))
# Add $(obj)/ for paths that is not absolute
objectify = $(foreach o,$(1),$(if $(filter /%,$(o)),$(o),$(obj)/$(o)))
@@ -68,7 +73,7 @@
# echo command. Short version is $(quiet) equals quiet, otherwise full command
echo-cmd = $(if $($(quiet)cmd_$(1)), \
- echo ' $(subst ','\'',$($(quiet)cmd_$(1)))';)
+ echo ' $(call escsq,$($(quiet)cmd_$(1)))';)
# function to only execute the passed command if necessary
# >'< substitution is for echo to work, >$< substitution to preserve $ when reloading .cmd file
@@ -78,7 +83,7 @@
@set -e; \
$(echo-cmd) \
$(cmd_$(1)); \
- echo 'cmd_$@ := $(subst $$,$$$$,$(subst ','\'',$(cmd_$(1))))' > $(@D)/.$(@F).cmd)
+ echo 'cmd_$@ := $(subst $$,$$$$,$(call escsq,$(cmd_$(1))))' > $(@D)/.$(@F).cmd)
# execute the command and also postprocess generated .d dependencies
# file
@@ -87,7 +92,7 @@
@set -e; \
$(echo-cmd) \
$(cmd_$(1)); \
- scripts/basic/fixdep $(depfile) $@ '$(subst $$,$$$$,$(subst ','\'',$(cmd_$(1))))' > $(@D)/.$(@F).tmp; \
+ scripts/basic/fixdep $(depfile) $@ '$(subst $$,$$$$,$(call escsq,$(cmd_$(1))))' > $(@D)/.$(@F).tmp; \
rm -f $(depfile); \
mv -f $(@D)/.$(@F).tmp $(@D)/.$(@F).cmd)