From e47477e52ced46986c352a0ae6cf798c9a7aa560 Mon Sep 17 00:00:00 2001
From: Patrick Georgi <patrick@georgi-clan.de>
Date: Sat, 17 May 2014 18:38:10 +0200
Subject: [PATCH] build: re-enable ccache support
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The ccache support was mostly disabled because it
didn't hook onto most compilers anymore.

Caveat: ccache and scan-build don't work together since
scan-build doesn't like arguments in its compiler command
line (eg. "ccache gcc").

Change-Id: I7c1c6e22cb662f2b08e774ea484ac1c412fdd2db
Signed-off-by: Patrick Georgi <patrick@georgi-clan.de>
Reviewed-on: http://review.coreboot.org/5775
Tested-by: build bot (Jenkins)
Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
---
 Makefile      | 12 ------------
 toolchain.inc | 20 +++++++++++++++++++-
 2 files changed, 19 insertions(+), 13 deletions(-)

diff --git a/Makefile b/Makefile
index ddacdc370b..cc2d27ce7f 100644
--- a/Makefile
+++ b/Makefile
@@ -114,18 +114,6 @@ CC:=clang -m32 -mno-mmx -mno-sse -no-integrated-as
 HOSTCC:=clang
 endif
 
-ifeq ($(CONFIG_CCACHE),y)
-CCACHE:=$(word 1,$(wildcard $(addsuffix /ccache,$(subst :, ,$(PATH)))))
-ifeq ($(CCACHE),)
-$(error ccache selected, but not found in PATH)
-endif
-CCACHE:=CCACHE_COMPILERCHECK=content CCACHE_BASEDIR=$(top) $(CCACHE)
-CC := $(CCACHE) $(CC)
-HOSTCC := $(CCACHE) $(HOSTCC)
-HOSTCXX := $(CCACHE) $(HOSTCXX)
-ROMCC_BIN := $(CCACHE) $(ROMCC_BIN)
-endif
-
 strip_quotes = $(subst ",,$(subst \",,$(1)))
 
 # The primary target needs to be here before we include the
diff --git a/toolchain.inc b/toolchain.inc
index bfa604b986..568097e008 100644
--- a/toolchain.inc
+++ b/toolchain.inc
@@ -19,6 +19,24 @@
 
 ARCH_SUPPORTED := armv7 x86_32
 
+# ccache integration
+ifeq ($(CONFIG_CCACHE),y)
+
+CCACHE:=$(word 1,$(wildcard $(addsuffix /ccache,$(subst :, ,$(PATH)))))
+ifeq ($(CCACHE),)
+$(error ccache selected, but not found in PATH)
+endif
+
+export CCACHE_COMPILERCHECK=content
+export CCACHE_BASEDIR=$(top)
+
+$(foreach arch,$(ARCH_SUPPORTED), \
+	$(eval CC_$(arch):=$(CCACHE) $(CC_$(arch))))
+
+HOSTCC:=$(CCACHE) $(HOSTCC)
+HOSTCXX:=$(CCACHE) $(HOSTCXX)
+ROMCC=$(CCACHE) $(ROMCC_BIN)
+endif
 
 # scan-build integration
 ifneq ($(CCC_ANALYZER_OUTPUT_FORMAT),)
@@ -28,7 +46,7 @@ export CCC_ANALYZER_ANALYSIS := -analyzer-opt-analyze-headers
 endif
 
 $(foreach arch,$(ARCH_SUPPORTED), \
-	$(eval CC_$(arch):=CCC_CC=$(CC_$(arch)) $(CC) ))
+	$(eval CC_$(arch):=CCC_CC="$(CC_$(arch))" $(CC) ))
 
 HOSTCC:=CCC_CC="$(HOSTCC)" $(CC)
 HOSTCXX:=CCC_CXX="$(HOSTCXX)" $(CXX)