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.
diff --git a/tools/gdb/Makefile b/tools/gdb/Makefile
index e7618b7..dbcb91f 100644
--- a/tools/gdb/Makefile
+++ b/tools/gdb/Makefile
@@ -1,4 +1,7 @@
#
+# (C) Copyright 2006
+# Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+#
# (C) Copyright 2000
# Murray Jensen <Murray.Jensen@csiro.au>
#
@@ -25,7 +28,11 @@
BINS = gdbsend gdbcont
-OBJS = gdbsend.o gdbcont.o error.o remote.o serial.o
+COBJS = gdbsend.o gdbcont.o error.o remote.o serial.o
+
+OBJS := $(addprefix $(obj),$(COBJS))
+SRCS := $(COBJS:.o=.c)
+BINS := $(addprefix $(obj),$(BINS))
#
# Use native tools and options
@@ -44,26 +51,26 @@
else # ! CYGWIN
-all: $(BINS)
+all: $(obj).depend $(BINS)
-gdbsend: gdbsend.o error.o remote.o serial.o
+$(obj)gdbsend: $(obj)gdbsend.o $(obj)error.o $(obj)remote.o $(obj)serial.o
$(CC) $(CFLAGS) $(HOST_LDFLAGS) -o $@ $^
-gdbcont: gdbcont.o error.o remote.o serial.o
+$(obj)gdbcont: $(obj)gdbcont.o $(obj)error.o $(obj)remote.o $(obj)serial.o
$(CC) $(CFLAGS) $(HOST_LDFLAGS) -o $@ $^
clean:
rm -f $(OBJS)
distclean: clean
- rm -f $(BINS) core *.bak .depend
+ rm -f $(BINS) $(obj)core $(obj)*.bak $(obj).depend
#########################################################################
-.depend: Makefile $(OBJS:.o=.c)
- $(CC) -M $(CPPFLAGS) -I../include $(OBJS:.o=.c) > $@
+# defines $(obj).depend target
+include $(SRCTREE)/rules.mk
--include .depend
+sinclude $(obj).depend
#########################################################################