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| author | Marian Balakowicz <m8@semihalf.com> | 2006-09-01 19:49:50 +0200 |
|---|---|---|
| committer | Marian Balakowicz <m8@semihalf.com> | 2006-09-01 19:49:50 +0200 |
| commit | f93286397ed2a7084efb0362a43ee09f11702349 (patch) | |
| tree | 11e0c11781ba0b867831eff47a4178a464cf00b3 /cpu/mpc83xx | |
| parent | 24d3d3754634532ae262075484e7c1d00d447152 (diff) | |
| download | u-boot-imx-f93286397ed2a7084efb0362a43ee09f11702349.zip u-boot-imx-f93286397ed2a7084efb0362a43ee09f11702349.tar.gz u-boot-imx-f93286397ed2a7084efb0362a43ee09f11702349.tar.bz2 | |
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/mpc83xx')
| -rw-r--r-- | cpu/mpc83xx/Makefile | 30 |
1 files changed, 14 insertions, 16 deletions
diff --git a/cpu/mpc83xx/Makefile b/cpu/mpc83xx/Makefile index 60df4cd..f3fa6fd 100644 --- a/cpu/mpc83xx/Makefile +++ b/cpu/mpc83xx/Makefile @@ -1,4 +1,7 @@ # +# (C) Copyright 2006 +# Wolfgang Denk, DENX Software Engineering, wd@denx.de. +# # Copyright 2004 Freescale Semiconductor, Inc. # # See file CREDITS for list of people who contributed to this @@ -22,31 +25,26 @@ include $(TOPDIR)/config.mk -LIB = lib$(CPU).a +LIB = $(obj)lib$(CPU).a -START = start.o \ - resetvec.o +START = start.o resetvec.o +COBJS = traps.o cpu.o cpu_init.o speed.o interrupts.o \ + i2c.o spd_sdram.o -COBJS = traps.o \ - cpu.o \ - cpu_init.o \ - speed.o \ - interrupts.o \ - i2c.o \ - spd_sdram.o +SRCS := $(START:.o=.S) $(SOBJS:.o=.S) $(COBJS:.o=.c) +OBJS := $(addprefix $(obj),$(SOBJS) $(COBJS)) +START := $(addprefix $(obj),$(START)) -OBJS = $(COBJS) - -all: .depend $(START) $(LIB) +all: $(obj).depend $(START) $(LIB) $(LIB): $(OBJS) $(AR) crv $@ $(OBJS) ######################################################################### -.depend: Makefile $(START:.o=.S) $(AOBJS:.o=.S) $(COBJS:.o=.c) - $(CC) -M $(CFLAGS) $(START:.o=.S) $(COBJS:.o=.c) > $@ +# defines $(obj).depend target +include $(SRCTREE)/rules.mk -sinclude .depend +sinclude $(obj).depend ######################################################################### |