Thomas Heijligen has uploaded this change for review.
[RFC][WIP] Makefile: use directory for object files
Use $(OBJPATH), defaults to .obj, as storage location for object and
dependency files. This keeps the main source directory clean. The
Makefile in util/ich_descriptors_tool does this already.
Change-Id: Id0b5eea0b4c941f5af37c0d27dcc95c0bb45461f
Signed-off-by: Thomas Heijligen <thomas.heijligen@secunet.com>
---
M Makefile
1 file changed, 9 insertions(+), 5 deletions(-)
git pull ssh://review.coreboot.org:29418/flashrom refs/changes/34/61034/1
diff --git a/Makefile b/Makefile
index b8287a9..47efebc 100644
--- a/Makefile
+++ b/Makefile
@@ -36,6 +36,7 @@
RANLIB ?= ranlib
PKG_CONFIG ?= pkg-config
BUILD_DETAILS_FILE ?= build_details.txt
+OBJPATH = .obj
# The following parameter changes the default programmer that will be used if there is no -p/--programmer
# argument given when running flashrom. The predefined setting does not enable any default so that every
@@ -906,8 +907,8 @@
@+$(MAKE) -C util/ich_descriptors_tool/ HOST_OS=$(HOST_OS) TARGET_OS=$(TARGET_OS)
endif
-$(PROGRAM)$(EXEC_SUFFIX): $(OBJS)
- $(CC) -o $(PROGRAM)$(EXEC_SUFFIX) $(OBJS) $(LDFLAGS) $(LIBS) $(PCILIBS) $(FEATURE_LIBS)
+$(PROGRAM)$(EXEC_SUFFIX): $(addprefix $(OBJPATH)/,$(OBJS))
+ $(CC) -o $(PROGRAM)$(EXEC_SUFFIX) $^ $(LDFLAGS) $(LIBS) $(PCILIBS) $(FEATURE_LIBS)
libflashrom.a: $(LIBFLASHROM_OBJS)
$(AR) rcs $@ $^
@@ -918,14 +919,17 @@
# stored files, they can be handled here as well.
TAROPTIONS = $(shell LC_ALL=C tar --version|grep -q GNU && echo "--owner=root --group=root")
-%.o: %.c features
+_create_OBJPATH:
+ mkdir -p $(OBJPATH)
+
+$(OBJPATH)/%.o: %.c features _create_OBJPATH
$(CC) -MMD $(CFLAGS) $(CPPFLAGS) $(FLASHROM_CFLAGS) $(FEATURE_CFLAGS) $(SCMDEF) -o $@ -c $<
# Make sure to add all names of generated binaries here.
# This includes all frontends and libflashrom.
# We don't use EXEC_SUFFIX here because we want to clean everything.
clean:
- rm -f $(PROGRAM) $(PROGRAM).exe libflashrom.a $(filter-out Makefile.d, $(wildcard *.d *.o)) $(PROGRAM).8 $(PROGRAM).8.html $(BUILD_DETAILS_FILE)
+ rm -rf $(PROGRAM) $(PROGRAM).exe libflashrom.a $(PROGRAM).8 $(PROGRAM).8.html $(BUILD_DETAILS_FILE) $(OBJPATH)
@+$(MAKE) -C util/ich_descriptors_tool/ clean
distclean: clean
@@ -1086,4 +1090,4 @@
# Disable implicit suffixes and built-in rules (for performance and profit)
.SUFFIXES:
--include $(OBJS:.o=.d)
+-include $(OBJPATH)/$(OBJS:.o=.d)
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