[PATCH 1/2] kbuild: add stringify helper to quote a string passed to C files

[Masahiro Yamada]

I want to reuse $(squote)$(quote)...$(quote)$(squote) in the next
commit.  Move it to a helper.

Signed-off-by: Masahiro Yamada <yamada.masahiro@xxxxxxxxxxxxx>
---

 scripts/Kbuild.include | 4 ++++
 scripts/Makefile.lib   | 2 +-
 2 files changed, 5 insertions(+), 1 deletion(-)

diff --git a/scripts/Kbuild.include b/scripts/Kbuild.include
index db81df3..0b97354 100644
--- a/scripts/Kbuild.include
+++ b/scripts/Kbuild.include
@@ -33,6 +33,10 @@ baseprereq = $(basename $(notdir $<))
 escsq = $(subst $(squote),'\$(squote)',$1)
 
 ###
+# Quote a string to pass it to C files. foo => '"foo"'
+stringify = $(squote)$(quote)$1$(quote)$(squote)
+
+###
 # Easy method for doing a status message
        kecho := :
  quiet_kecho := echo
diff --git a/scripts/Makefile.lib b/scripts/Makefile.lib
index 580e605..9bbb019 100644
--- a/scripts/Makefile.lib
+++ b/scripts/Makefile.lib
@@ -89,7 +89,7 @@ obj-dirs	:= $(addprefix $(obj)/,$(obj-dirs))
 # Note: Files that end up in two or more modules are compiled without the
 #       KBUILD_MODNAME definition. The reason is that any made-up name would
 #       differ in different configs.
-name-fix = $(squote)$(quote)$(subst $(comma),_,$(subst -,_,$1))$(quote)$(squote)
+name-fix = $(call stringify,$(subst $(comma),_,$(subst -,_,$1)))
 basename_flags = -DKBUILD_BASENAME=$(call name-fix,$(basetarget))
 modname_flags  = $(if $(filter 1,$(words $(modname))),\
                  -DKBUILD_MODNAME=$(call name-fix,$(modname)))
-- 
2.7.4