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authorGravatar Denis Vlasenko <vda.linux@googlemail.com>2008-06-02 04:51:29 +0000
committerGravatar Denis Vlasenko <vda.linux@googlemail.com>2008-06-02 04:51:29 +0000
commitb8e653bfbfeee7797e631d6d47cd9cddb7658e4b (patch)
tree7a0553a4184856af422e57dabbaec68bbe271502 /Makefile
parentcd2663f15e74274619dd97dc382bb858ac255872 (diff)
downloadbusybox-b8e653bfbfeee7797e631d6d47cd9cddb7658e4b.tar.gz
busybox-b8e653bfbfeee7797e631d6d47cd9cddb7658e4b.tar.bz2
Reinstate CONFIG_CROSS_COMPILE_PREFIX
Diffstat (limited to 'Makefile')
-rw-r--r--Makefile38
1 files changed, 26 insertions, 12 deletions
diff --git a/Makefile b/Makefile
index 9c1b49611..78c701ec0 100644
--- a/Makefile
+++ b/Makefile
@@ -142,17 +142,6 @@ VPATH := $(srctree)$(if $(KBUILD_EXTMOD),:$(KBUILD_EXTMOD))
export srctree objtree VPATH TOPDIR
-# SUBARCH tells the usermode build what the underlying arch is. That is set
-# first, and if a usermode build is happening, the "ARCH=um" on the command
-# line overrides the setting of ARCH below. If a native build is happening,
-# then ARCH is assigned, getting whatever value it gets normally, and
-# SUBARCH is subsequently ignored.
-
-SUBARCH := $(shell uname -m | sed -e s/i.86/i386/ -e s/sun4u/sparc64/ \
- -e s/arm.*/arm/ -e s/sa110/arm/ \
- -e s/s390x/s390/ -e s/parisc64/parisc/ \
- -e s/ppc.*/powerpc/ -e s/mips.*/mips/ )
-
# Cross compiling and selecting different set of gcc/bin-utils
# ---------------------------------------------------------------------------
#
@@ -172,8 +161,33 @@ SUBARCH := $(shell uname -m | sed -e s/i.86/i386/ -e s/sun4u/sparc64/ \
# Default value for CROSS_COMPILE is not to prefix executables
# Note: Some architectures assign CROSS_COMPILE in their arch/*/Makefile
-ARCH ?= $(SUBARCH)
CROSS_COMPILE ?=
+# bbox: we may have CONFIG_CROSS_COMPILER_PREFIX in .config,
+# and it has not been included yet... thus using an awkward syntax.
+ifeq ($(CROSS_COMPILE),)
+CROSS_COMPILE := $(shell grep ^CONFIG_CROSS_COMPILER_PREFIX .config 2>/dev/null)
+CROSS_COMPILE := $(subst CONFIG_CROSS_COMPILER_PREFIX=,,$(CROSS_COMPILE))
+CROSS_COMPILE := $(subst ",,$(CROSS_COMPILE))
+endif
+
+# SUBARCH tells the usermode build what the underlying arch is. That is set
+# first, and if a usermode build is happening, the "ARCH=um" on the command
+# line overrides the setting of ARCH below. If a native build is happening,
+# then ARCH is assigned, getting whatever value it gets normally, and
+# SUBARCH is subsequently ignored.
+
+ifneq ($(CROSS_COMPILE),)
+SUBARCH := $(shell echo $(CROSS_COMPILE) | cut -d- -f1)
+else
+SUBARCH := $(shell uname -m)
+endif
+SUBARCH := $(shell echo $(SUBARCH) | sed -e s/i.86/i386/ -e s/sun4u/sparc64/ \
+ -e s/arm.*/arm/ -e s/sa110/arm/ \
+ -e s/s390x/s390/ -e s/parisc64/parisc/ \
+ -e s/ppc.*/powerpc/ -e s/mips.*/mips/ )
+
+ARCH ?= $(SUBARCH)
+$(warning ARCH=$(ARCH) SUBARCH=$(SUBARCH))
# Architecture as present in compile.h
UTS_MACHINE := $(ARCH)