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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 | # # This file contains rules which are shared between multiple Makefiles. # # # False targets. # .PHONY: dummy # # Special variables which should not be exported # unexport EXTRA_ASFLAGS unexport EXTRA_CFLAGS unexport EXTRA_LDFLAGS unexport EXTRA_ARFLAGS unexport SUBDIRS unexport SUB_DIRS unexport ALL_SUB_DIRS unexport MOD_SUB_DIRS unexport O_TARGET unexport O_OBJS unexport L_OBJS unexport M_OBJS unexport MOD_LIST_NAME # # Get things started. # first_rule: sub_dirs $(O_TARGET) $(L_TARGET) # # Common rules # .c.s: $(CC) $(CFLAGS) $(EXTRA_CFLAGS) -S $< -o $@ .c.o: $(CC) $(CFLAGS) $(EXTRA_CFLAGS) -c -o $@ $< .s.o: $(AS) $(ASFLAGS) $(EXTRA_CFLAGS) -o $@ $< # # Rule to compile a set of .o files into one .o file # ifdef O_TARGET $(O_TARGET): $(O_OBJS) $(TOPDIR)/include/linux/config.h rm -f $@ ifdef O_OBJS $(LD) $(EXTRA_LDFLAGS) -r -o $@ $(O_OBJS) else $(AR) rcs $@ endif endif # # Rule to compile a set of .o files into one .a file # ifdef L_TARGET $(L_TARGET): $(L_OBJS) $(TOPDIR)/include/linux/config.h rm -f $@ $(AR) $(EXTRA_ARFLAGS) rcs $@ $(L_OBJS) endif # # This make dependencies quickly # fastdep: dummy if [ -n "$(wildcard *.[chS])" ]; then \ awk -f $(TOPDIR)/scripts/depend.awk *.[chS] > .depend; fi set -e; for i in $(ALL_SUB_DIRS); do $(MAKE) -C $$i fastdep; done # # A rule to make subdirectories # sub_dirs: dummy ifdef SUB_DIRS set -e; for i in $(SUB_DIRS); do $(MAKE) -C $$i; done endif # # A rule to make modules # ifdef M_OBJS PDWN=$(shell /bin/sh $(TOPDIR)/scripts/pathdown.sh) endif modules: $(M_OBJS) dummy ifdef MOD_SUB_DIRS set -e; for i in $(MOD_SUB_DIRS); do $(MAKE) -C $$i modules; done endif ifneq "$(strip $(MOD_LIST_NAME))" "" ifndef M_OBJS # Hack for fs subdirectories rm -f $$TOPDIR/modules/$(MOD_LIST_NAME) for i in $(MOD_SUB_DIRS); do \ echo `basename $$i`.o >> $$TOPDIR/modules/$(MOD_LIST_NAME); done else echo $(M_OBJS) > $$TOPDIR/modules/$(MOD_LIST_NAME) endif endif ifdef M_OBJS echo $(PDWN) cd $$TOPDIR/modules; for i in $(M_OBJS); do \ ln -sf ../$(PDWN)/$$i .; done endif # # A rule to do nothing # dummy: # # This is useful for testing # script: $(SCRIPT) # # include dependency files they exist # ifeq (.depend,$(wildcard .depend)) include .depend endif ifeq ($(TOPDIR)/.hdepend,$(wildcard $(TOPDIR)/.hdepend)) include $(TOPDIR)/.hdepend endif |