Oops. Forgot these....

2001-10-24 05:26:42 +00:00
parent bdfd0d78bc
commit 4bcdd72142
2 changed files with 230 additions and 0 deletions
--- a/Rules.mak
+++ b/Rules.mak
@@ -0,0 +1,195 @@
+#
+# This file contains rules which are shared between multiple Makefiles.
+#
+
+#
+# False targets.
+#
+.PHONY: dummy
+
+#
+# Special variables which should not be exported
+#
+unexport EXTRA_AFLAGS
+unexport EXTRA_CFLAGS
+unexport EXTRA_LDFLAGS
+unexport EXTRA_ARFLAGS
+unexport SUBDIRS
+unexport SUB_DIRS
+unexport ALL_SUB_DIRS
+unexport O_TARGET
+
+unexport obj-y
+unexport obj-n
+unexport obj-
+unexport export-objs
+unexport subdir-y
+unexport subdir-n
+unexport subdir-
+
+#
+# Get things started.
+#
+first_rule: sub_dirs
+	$(MAKE) all_targets
+
+SUB_DIRS	:= $(subdir-y)
+ALL_SUB_DIRS	:= $(sort $(subdir-y) $(subdir-n) $(subdir-))
+
+
+#
+# Common rules
+#
+
+%.s: %.c
+	$(CC) $(CFLAGS) $(EXTRA_CFLAGS) $(CFLAGS_$@) -S $< -o $@
+
+%.i: %.c
+	$(CPP) $(CFLAGS) $(EXTRA_CFLAGS) $(CFLAGS_$@) $< > $@
+
+%.o: %.c
+	$(CC) $(CFLAGS) $(EXTRA_CFLAGS) $(CFLAGS_$@) -c -o $@ $<
+	@ ( \
+	    echo 'ifeq ($(strip $(subst $(comma),:,$(CFLAGS) $(EXTRA_CFLAGS) $(CFLAGS_$@))),$$(strip $$(subst $$(comma),:,$$(CFLAGS) $$(EXTRA_CFLAGS) $$(CFLAGS_$@))))' ; \
+	    echo 'FILES_FLAGS_UP_TO_DATE += $@' ; \
+	    echo 'endif' \
+	) > $(dir $@)/.$(notdir $@).flags
+
+%.o: %.s
+	$(AS) $(AFLAGS) $(EXTRA_CFLAGS) -o $@ $<
+
+# Old makefiles define their own rules for compiling .S files,
+# but these standard rules are available for any Makefile that
+# wants to use them.  Our plan is to incrementally convert all
+# the Makefiles to these standard rules.  -- rmk, mec
+ifdef USE_STANDARD_AS_RULE
+
+%.s: %.S
+	$(CPP) $(AFLAGS) $(EXTRA_AFLAGS) $(AFLAGS_$@) $< > $@
+
+%.o: %.S
+	$(CC) $(AFLAGS) $(EXTRA_AFLAGS) $(AFLAGS_$@) -c -o $@ $<
+
+endif
+
+%.lst: %.c
+	$(CC) $(CFLAGS) $(EXTRA_CFLAGS) $(CFLAGS_$@) -g -c -o $*.o $<
+	$(TOPDIR)/scripts/makelst $* $(TOPDIR) $(OBJDUMP)
+#
+#
+#
+all_targets: $(O_TARGET) $(L_TARGET)
+
+#
+# Rule to compile a set of .o files into one .o file
+#
+ifdef O_TARGET
+$(O_TARGET): $(obj-y)
+	rm -f $@
+    ifneq "$(strip $(obj-y))" ""
+	$(LD) $(EXTRA_LDFLAGS) -r -o $@ $(filter $(obj-y), $^)
+    else
+	$(AR) rcs $@
+    endif
+	@ ( \
+	    echo 'ifeq ($(strip $(subst $(comma),:,$(EXTRA_LDFLAGS) $(obj-y))),$$(strip $$(subst $$(comma),:,$$(EXTRA_LDFLAGS) $$(obj-y))))' ; \
+	    echo 'FILES_FLAGS_UP_TO_DATE += $@' ; \
+	    echo 'endif' \
+	) > $(dir $@)/.$(notdir $@).flags
+endif # O_TARGET
+
+#
+# Rule to compile a set of .o files into one .a file
+#
+ifdef L_TARGET
+$(L_TARGET): $(obj-y)
+	rm -f $@
+	$(AR) $(EXTRA_ARFLAGS) rcs $@ $(obj-y)
+	@ ( \
+	    echo 'ifeq ($(strip $(subst $(comma),:,$(EXTRA_ARFLAGS) $(obj-y))),$$(strip $$(subst $$(comma),:,$$(EXTRA_ARFLAGS) $$(obj-y))))' ; \
+	    echo 'FILES_FLAGS_UP_TO_DATE += $@' ; \
+	    echo 'endif' \
+	) > $(dir $@)/.$(notdir $@).flags
+endif
+
+
+#
+# This make dependencies quickly
+#
+fastdep: dummy
+	$(TOPDIR)/scripts/mkdep $(CFLAGS) $(EXTRA_CFLAGS) -- $(wildcard *.[chS]) > .depend
+ifdef ALL_SUB_DIRS
+	$(MAKE) $(patsubst %,_sfdep_%,$(ALL_SUB_DIRS)) _FASTDEP_ALL_SUB_DIRS="$(ALL_SUB_DIRS)"
+endif
+
+ifdef _FASTDEP_ALL_SUB_DIRS
+$(patsubst %,_sfdep_%,$(_FASTDEP_ALL_SUB_DIRS)):
+	$(MAKE) -C $(patsubst _sfdep_%,%,$@) fastdep
+endif
+
+	
+#
+# A rule to make subdirectories
+#
+subdir-list = $(sort $(patsubst %,_subdir_%,$(SUB_DIRS)))
+sub_dirs: dummy $(subdir-list)
+
+ifdef SUB_DIRS
+$(subdir-list) : dummy
+	$(MAKE) -C $(patsubst _subdir_%,%,$@)
+endif
+
+#
+# A rule to do nothing
+#
+dummy:
+
+#
+# This is useful for testing
+#
+script:
+	$(SCRIPT)
+
+#
+# include dependency files if they exist
+#
+ifneq ($(wildcard .depend),)
+include .depend
+endif
+
+ifneq ($(wildcard $(TOPDIR)/.hdepend),)
+include $(TOPDIR)/.hdepend
+endif
+
+#
+# Find files whose flags have changed and force recompilation.
+# For safety, this works in the converse direction:
+#   every file is forced, except those whose flags are positively up-to-date.
+#
+FILES_FLAGS_UP_TO_DATE :=
+
+# For use in expunging commas from flags, which mung our checking.
+comma = ,
+
+FILES_FLAGS_EXIST := $(wildcard .*.flags)
+ifneq ($(FILES_FLAGS_EXIST),)
+include $(FILES_FLAGS_EXIST)
+endif
+
+FILES_FLAGS_CHANGED := $(strip \
+    $(filter-out $(FILES_FLAGS_UP_TO_DATE), \
+	$(O_TARGET) $(L_TARGET) $(active-objs) \
+	))
+
+# A kludge: .S files don't get flag dependencies (yet),
+#   because that will involve changing a lot of Makefiles.  Also
+#   suppress object files explicitly listed in $(IGNORE_FLAGS_OBJS).
+#   This allows handling of assembly files that get translated into
+#   multiple object files (see arch/ia64/lib/idiv.S, for example).
+FILES_FLAGS_CHANGED := $(strip \
+    $(filter-out $(patsubst %.S, %.o, $(wildcard *.S) $(IGNORE_FLAGS_OBJS)), \
+    $(FILES_FLAGS_CHANGED)))
+
+ifneq ($(FILES_FLAGS_CHANGED),)
+$(FILES_FLAGS_CHANGED): dummy
+endif
--- a/applets/Makefile
+++ b/applets/Makefile
@@ -0,0 +1,35 @@
+# Makefile for busybox
+#
+# Copyright (C) 1999,2000,2001 by Erik Andersen <andersee@debian.org>
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+# General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+#
+
+TOPDIR   :=..
+L_TARGET := applets.a
+EXTRA_CFLAGS+=-I $(TOPDIR)/applets
+
+obj-y           :=
+obj-n           :=
+obj-            :=
+
+obj-y		+= applets.o busybox.o usage.o
+
+# Hand off to toplevel Rules.mak
+include $(TOPDIR)/Rules.mak
+
+clean:
+	rm -f $(L_TARGET) *.o core
+