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From: Douglas Anderson <dianders@chromium.org>
To: yamada.masahiro@socionext.com
Cc: groeck@chromium.org, sjg@chromium.org, briannorris@chromium.org,
	mingo@kernel.org, Douglas Anderson <dianders@chromium.org>,
	Michal Marek <michal.lkml@markovi.net>,
	linux-kernel@vger.kernel.org, linux-kbuild@vger.kernel.org
Subject: [PATCH v4 2/2] kbuild: Cache a few more calls to the compiler
Date: Mon, 16 Oct 2017 10:12:46 -0700	[thread overview]
Message-ID: <20171016171246.15712-3-dianders@chromium.org> (raw)
In-Reply-To: <20171016171246.15712-1-dianders@chromium.org>

These are a few stragglers that I left out of the original patch to
cache calls to the C compiler ("kbuild: Add a cache for generated
variables") because they bleed out into the main Makefile and thus
uglify things a little bit.  The idea is the same here, though.

Signed-off-by: Douglas Anderson <dianders@chromium.org>
Tested-by: Ingo Molnar <mingo@kernel.org>
Tested-by: Guenter Roeck <linux@roeck-us.net>
---

Changes in v4: None
Changes in v3:
- Add Tested-by for Ingo and Guenter since v2 and v3 are very similar

Changes in v2:
- Abstract at a different level (like shell-cached) per Masahiro Yamada

 Makefile | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/Makefile b/Makefile
index a2d715d7a327..5c82cca84d29 100644
--- a/Makefile
+++ b/Makefile
@@ -638,7 +638,7 @@ KBUILD_CFLAGS += $(call cc-ifversion, -lt, 0409, \
 KBUILD_CFLAGS	+= $(call cc-option,--param=allow-store-data-races=0)
 
 # check for 'asm goto'
-ifeq ($(shell $(CONFIG_SHELL) $(srctree)/scripts/gcc-goto.sh $(CC) $(KBUILD_CFLAGS)), y)
+ifeq ($(call shell-cached,$(CONFIG_SHELL) $(srctree)/scripts/gcc-goto.sh $(CC) $(KBUILD_CFLAGS)), y)
 	KBUILD_CFLAGS += -DCC_HAVE_ASM_GOTO
 	KBUILD_AFLAGS += -DCC_HAVE_ASM_GOTO
 endif
@@ -774,7 +774,7 @@ KBUILD_CFLAGS	+= $(call cc-option,-fdata-sections,)
 endif
 
 # arch Makefile may override CC so keep this after arch Makefile is included
-NOSTDINC_FLAGS += -nostdinc -isystem $(shell $(CC) -print-file-name=include)
+NOSTDINC_FLAGS += -nostdinc -isystem $(call shell-cached,$(CC) -print-file-name=include)
 CHECKFLAGS     += $(NOSTDINC_FLAGS)
 
 # warn about C99 declaration after statement
-- 
2.15.0.rc0.271.g36b669edcc-goog

  parent reply	other threads:[~2017-10-16 17:13 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-10-16 17:12 [PATCH v4 0/2] kbuild: Cache exploratory calls to the compiler Douglas Anderson
2017-10-16 17:12 ` [PATCH v4 1/2] kbuild: Add a cache for generated variables Douglas Anderson
2017-10-16 17:12 ` Douglas Anderson [this message]
2017-12-20  1:18   ` [PATCH v4 2/2] kbuild: Cache a few more calls to the compiler Dave Hansen
2017-12-20 17:11     ` Doug Anderson
2017-10-18 16:49 ` [PATCH v4 0/2] kbuild: Cache exploratory " Masahiro Yamada

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