[Xen-devel] [PATCH 02 of 10] xenalyze: automatically generate dependencies

[David Vrabel <david.vrabel@xxxxxxxxxx>]

Use gcc's -MD and -MP options to automatically generate dependencies.

Signed-off-by: David Vrabel <david.vrabel@xxxxxxxxxx>

diff --git a/.hgignore b/.hgignore
--- a/.hgignore
+++ b/.hgignore
@@ -1,3 +1,4 @@
+.*\.d
 .*\.o
 xenalyze
 dump-raw
diff --git a/Makefile b/Makefile
--- a/Makefile
+++ b/Makefile
@@ -1,5 +1,3 @@
-CC = gcc
-
 CFLAGS += -g -O2
 CFLAGS += -fno-strict-aliasing
 CFLAGS += -std=gnu99
@@ -7,22 +5,35 @@ CFLAGS += -Wall -Wstrict-prototypes
 CFLAGS += -Wno-unused-value
 CFLAGS += -Wdeclaration-after-statement
 
-CFLAGS  += -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE
+CFLAGS += -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE
 CFLAGS += -mno-tls-direct-seg-refs
-CFLAGS  += -Werror
+CFLAGS += -Werror
 
-BIN      = xenalyze dump-raw
+BIN := xenalyze dump-raw
 
-HDRS = trace.h analyze.h mread.h
+xenalyze_OBJS := \
+       mread.o \
+       xenalyze.o
+
+dump-raw_OBJS := \
+       dump-raw.o
 
 all: $(BIN)
 
+xenalyze: $(xenalyze_OBJS)
+       $(CC) $(LDFLAGS) -o $@ $^
+
+dump-raw: $(dump-raw_OBJS)
+       $(CC) $(LDFLAGS) -o $@ $^
+
+%.o: %.c
+       $(CC) $(CFLAGS) -MD -MP -c -o $@ $<
+
+all_objs := $(foreach b,$(BIN),$($(b)_OBJS))
+all_deps := $(all_objs:.o=.d)
+
 .PHONY: clean
 clean:
-       $(RM) *.a *.so *.o *.rpm $(BIN) $(LIBBIN)
+       $(RM) $(BIN) $(all_objs) $(all_deps)
 
-%: %.c $(HDRS) Makefile
-       $(CC) $(CFLAGS) -o $@ $<
-
-xenalyze: xenalyze.o mread.o
-       $(CC) $(CFLAGS) -o $@ $^
+-include $(all_deps)

_______________________________________________
Xen-devel mailing list
Xen-devel@xxxxxxxxxxxxx
http://lists.xen.org/xen-devel