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authorMarian Balakowicz <m8@semihalf.com>2006-09-01 19:49:50 +0200
committerMarian Balakowicz <m8@semihalf.com>2006-09-01 19:49:50 +0200
commitf93286397ed2a7084efb0362a43ee09f11702349 (patch)
tree11e0c11781ba0b867831eff47a4178a464cf00b3 /cpu/s3c44b0/Makefile
parent24d3d3754634532ae262075484e7c1d00d447152 (diff)
downloadu-boot-linaro-stable-f93286397ed2a7084efb0362a43ee09f11702349.tar.gz
Add support for a saving build objects in a separate directory.
Modifications are based on the linux kernel approach and support two use cases: 1) Add O= to the make command line 'make O=/tmp/build all' 2) Set environement variable BUILD_DIR to point to the desired location 'export BUILD_DIR=/tmp/build' 'make' The second approach can also be used with a MAKEALL script 'export BUILD_DIR=/tmp/build' './MAKEALL' Command line 'O=' setting overrides BUILD_DIR environent variable. When none of the above methods is used the local build is performed and the object files are placed in the source directory.
Diffstat (limited to 'cpu/s3c44b0/Makefile')
-rw-r--r--cpu/s3c44b0/Makefile18
1 files changed, 11 insertions, 7 deletions
diff --git a/cpu/s3c44b0/Makefile b/cpu/s3c44b0/Makefile
index d43c73e53..62cb51411 100644
--- a/cpu/s3c44b0/Makefile
+++ b/cpu/s3c44b0/Makefile
@@ -1,5 +1,5 @@
#
-# (C) Copyright 2000-2004
+# (C) Copyright 2000-2006
# Wolfgang Denk, DENX Software Engineering, wd@denx.de.
#
# See file CREDITS for list of people who contributed to this
@@ -23,21 +23,25 @@
include $(TOPDIR)/config.mk
-LIB = lib$(CPU).a
+LIB = $(obj)lib$(CPU).a
START = start.o
-OBJS = serial.o interrupts.o cpu.o
+COBJS = serial.o interrupts.o cpu.o
-all: .depend $(START) $(LIB)
+SRCS := $(START:.o=.S) $(SOBJS:.o=.S) $(COBJS:.o=.c)
+OBJS := $(addprefix $(obj),$(SOBJS) $(COBJS))
+START := $(addprefix $(obj),$(START))
+
+all: $(obj).depend $(START) $(LIB)
$(LIB): $(OBJS)
$(AR) crv $@ $(OBJS)
#########################################################################
-.depend: Makefile $(START:.o=.S) $(OBJS:.o=.c)
- $(CC) -M $(CFLAGS) $(START:.o=.S) $(OBJS:.o=.c) > $@
+# defines $(obj).depend target
+include $(SRCTREE)/rules.mk
-sinclude .depend
+sinclude $(obj).depend
#########################################################################