diff options
| author | Marian Balakowicz | 2006-09-01 19:49:50 +0200 |
|---|---|---|
| committer | Marian Balakowicz | 2006-09-01 19:49:50 +0200 |
| commit | f93286397ed2a7084efb0362a43ee09f11702349 (patch) | |
| tree | 11e0c11781ba0b867831eff47a4178a464cf00b3 /common | |
| parent | 24d3d3754634532ae262075484e7c1d00d447152 (diff) | |
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 'common')
| -rw-r--r-- | common/Makefile | 23 |
1 files changed, 12 insertions, 11 deletions
diff --git a/common/Makefile b/common/Makefile index eb0b5dadfec..d626fe4d4ba 100644 --- a/common/Makefile +++ b/common/Makefile @@ -1,5 +1,5 @@ # -# (C) Copyright 2004 +# (C) Copyright 2004-2006 # Wolfgang Denk, DENX Software Engineering, wd@denx.de. # # See file CREDITS for list of people who contributed to this @@ -23,7 +23,7 @@ include $(TOPDIR)/config.mk -LIB = libcommon.a +LIB = $(obj)libcommon.a AOBJS = @@ -53,28 +53,29 @@ COBJS = main.o ACEX1K.o altera.o bedbug.o circbuf.o \ usb.o usb_kbd.o usb_storage.o \ virtex2.o xilinx.o crc16.o xyzModem.o -OBJS = $(AOBJS) $(COBJS) +SRCS := $(AOBJS:.o=.S) $(COBJS:.o=.c) +OBJS := $(addprefix $(obj),$(AOBJS) $(COBJS)) CPPFLAGS += -I.. all: $(LIB) $(AOBJS) -$(LIB): .depend $(OBJS) +$(LIB): $(obj).depend $(OBJS) $(AR) crv $@ $(OBJS) -environment.o: environment.c ../tools/envcrc +$(obj)environment.o: $(src)environment.c $(obj)../tools/envcrc $(CC) $(AFLAGS) -Wa,--no-warn \ - -DENV_CRC=$(shell ../tools/envcrc) \ - -c -o $@ environment.c + -DENV_CRC=$(shell $(obj)../tools/envcrc) \ + -c -o $@ $(src)environment.c -../tools/envcrc: +$(obj)../tools/envcrc: $(MAKE) -C ../tools ######################################################################### -.depend: Makefile $(AOBJS:.o=.S) $(COBJS:.o=.c) - $(CC) -M $(CFLAGS) $(AOBJS:.o=.S) $(COBJS:.o=.c) > $@ +# defines $(obj).depend target +include $(SRCTREE)/rules.mk -sinclude .depend +sinclude $(obj).depend ######################################################################### |