Bare uClinux-2.4.20-uc1 CVS pull

1 files changed, 329 insertions, 0 deletions

diff --git a/uClinux-2.4.20-uc1/Rules.make b/uClinux-2.4.20-uc1/Rules.make
new file mode 100644
index 0000000..c27ede9
--- /dev/null
+++ b/uClinux-2.4.20-uc1/Rules.make
@@ -0,0 +1,329 @@
+#
+# 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 MOD_SUB_DIRS
+unexport O_TARGET
+unexport ALL_MOBJS
+
+unexport obj-y
+unexport obj-m
+unexport obj-n
+unexport obj-
+unexport export-objs
+unexport subdir-y
+unexport subdir-m
+unexport subdir-n
+unexport subdir-
+
+comma	:= ,
+EXTRA_CFLAGS_nostdinc := $(EXTRA_CFLAGS) $(kbuild_2_4_nostdinc)
+
+#
+# Get things started.
+#
+first_rule: sub_dirs
+	$(MAKE) all_targets
+
+both-m          := $(filter $(mod-subdirs), $(subdir-y))
+SUB_DIRS	:= $(subdir-y)
+MOD_SUB_DIRS	:= $(sort $(subdir-m) $(both-m))
+ALL_SUB_DIRS	:= $(sort $(subdir-y) $(subdir-m) $(subdir-n) $(subdir-))
+
+
+#
+# Common rules
+#
+
+%.s: %.c
+	$(CC) $(CFLAGS) $(EXTRA_CFLAGS_nostdinc) -DKBUILD_BASENAME=$(subst $(comma),_,$(subst -,_,$(*F))) $(CFLAGS_$@) -S $< -o $@
+
+%.i: %.c
+	$(CPP) $(CFLAGS) $(EXTRA_CFLAGS_nostdinc) -DKBUILD_BASENAME=$(subst $(comma),_,$(subst -,_,$(*F))) $(CFLAGS_$@) $< > $@
+
+%.o: %.c
+	$(CC) $(CFLAGS) $(EXTRA_CFLAGS_nostdinc) -DKBUILD_BASENAME=$(subst $(comma),_,$(subst -,_,$(*F))) $(CFLAGS_$@) -c -o $@ $<
+	@ ( \
+	    echo 'ifeq ($(strip $(subst $(comma),:,$(CFLAGS) $(EXTRA_CFLAGS_nostdinc) $(CFLAGS_$@))),$$(strip $$(subst $$(comma),:,$$(CFLAGS) $$(EXTRA_CFLAGS_nostdinc) $$(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_nostdinc) $(CFLAGS_$@) -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) $(LDFLAGS) $(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_nostdinc) -- $(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 make modules
+#
+ALL_MOBJS = $(filter-out $(obj-y), $(obj-m))
+ifneq "$(strip $(ALL_MOBJS))" ""
+MOD_DESTDIR := $(shell $(CONFIG_SHELL) $(TOPDIR)/scripts/pathdown.sh)
+endif
+
+unexport MOD_DIRS
+MOD_DIRS := $(MOD_SUB_DIRS) $(MOD_IN_SUB_DIRS)
+ifneq "$(strip $(MOD_DIRS))" ""
+.PHONY: $(patsubst %,_modsubdir_%,$(MOD_DIRS))
+$(patsubst %,_modsubdir_%,$(MOD_DIRS)) : dummy
+	$(MAKE) -C $(patsubst _modsubdir_%,%,$@) modules
+
+.PHONY: $(patsubst %,_modinst_%,$(MOD_DIRS))
+$(patsubst %,_modinst_%,$(MOD_DIRS)) : dummy
+	$(MAKE) -C $(patsubst _modinst_%,%,$@) modules_install
+endif
+
+.PHONY: modules
+modules: $(ALL_MOBJS) dummy \
+	 $(patsubst %,_modsubdir_%,$(MOD_DIRS))
+
+.PHONY: _modinst__
+_modinst__: dummy
+ifneq "$(strip $(ALL_MOBJS))" ""
+	mkdir -p $(MODLIB)/kernel/$(MOD_DESTDIR)
+	cp $(sort $(ALL_MOBJS)) $(MODLIB)/kernel/$(MOD_DESTDIR)
+endif
+
+.PHONY: modules_install
+modules_install: _modinst__ \
+	 $(patsubst %,_modinst_%,$(MOD_DIRS))
+
+#
+# A rule to do nothing
+#
+dummy:
+
+#
+# This is useful for testing
+#
+script:
+	$(SCRIPT)
+
+#
+# This sets version suffixes on exported symbols
+# Separate the object into "normal" objects and "exporting" objects
+# Exporting objects are: all objects that define symbol tables
+#
+ifdef CONFIG_MODULES
+
+multi-used	:= $(filter $(list-multi), $(obj-y) $(obj-m))
+multi-objs	:= $(foreach m, $(multi-used), $($(basename $(m))-objs))
+active-objs	:= $(sort $(multi-objs) $(obj-y) $(obj-m))
+
+ifdef CONFIG_MODVERSIONS
+ifneq "$(strip $(export-objs))" ""
+
+MODINCL = $(TOPDIR)/include/linux/modules
+
+# The -w option (enable warnings) for genksyms will return here in 2.1
+# So where has it gone?
+#
+# Added the SMP separator to stop module accidents between uniprocessor
+# and SMP Intel boxes - AC - from bits by Michael Chastain
+#
+
+ifdef CONFIG_SMP
+	genksyms_smp_prefix := -p smp_
+else
+	genksyms_smp_prefix := 
+endif
+
+$(MODINCL)/%.ver: %.c
+	@if [ ! -r $(MODINCL)/$*.stamp -o $(MODINCL)/$*.stamp -ot $< ]; then \
+		echo '$(CC) $(CFLAGS) $(EXTRA_CFLAGS_nostdinc) -E -D__GENKSYMS__ $<'; \
+		echo '| $(GENKSYMS) $(genksyms_smp_prefix) -k $(VERSION).$(PATCHLEVEL).$(SUBLEVEL) > $@.tmp'; \
+		$(CC) $(CFLAGS) $(EXTRA_CFLAGS_nostdinc) -E -D__GENKSYMS__ $< \
+		| $(GENKSYMS) $(genksyms_smp_prefix) -k $(VERSION).$(PATCHLEVEL).$(SUBLEVEL) > $@.tmp; \
+		if [ -r $@ ] && cmp -s $@ $@.tmp; then echo $@ is unchanged; rm -f $@.tmp; \
+		else echo mv $@.tmp $@; mv -f $@.tmp $@; fi; \
+	fi; touch $(MODINCL)/$*.stamp
+	
+$(addprefix $(MODINCL)/,$(export-objs:.o=.ver)): $(TOPDIR)/include/linux/autoconf.h
+
+# updates .ver files but not modversions.h
+fastdep: $(addprefix $(MODINCL)/,$(export-objs:.o=.ver))
+
+# updates .ver files and modversions.h like before (is this needed?)
+dep: fastdep update-modverfile
+
+endif # export-objs 
+
+# update modversions.h, but only if it would change
+update-modverfile:
+	@(echo "#ifndef _LINUX_MODVERSIONS_H";\
+	  echo "#define _LINUX_MODVERSIONS_H"; \
+	  echo "#include <linux/modsetver.h>"; \
+	  cd $(TOPDIR)/include/linux/modules; \
+	  for f in *.ver; do \
+	    if [ -f $$f ]; then echo "#include <linux/modules/$${f}>"; fi; \
+	  done; \
+	  echo "#endif"; \
+	) > $(TOPDIR)/include/linux/modversions.h.tmp
+	@if [ -r $(TOPDIR)/include/linux/modversions.h ] && cmp -s $(TOPDIR)/include/linux/modversions.h $(TOPDIR)/include/linux/modversions.h.tmp; then \
+		echo $(TOPDIR)/include/linux/modversions.h was not updated; \
+		rm -f $(TOPDIR)/include/linux/modversions.h.tmp; \
+	else \
+		echo $(TOPDIR)/include/linux/modversions.h was updated; \
+		mv -f $(TOPDIR)/include/linux/modversions.h.tmp $(TOPDIR)/include/linux/modversions.h; \
+	fi
+
+$(active-objs): $(TOPDIR)/include/linux/modversions.h
+
+else
+
+$(TOPDIR)/include/linux/modversions.h: $(TOPDIR)/include/linux/modsetver.h
+	@echo "#include <linux/modsetver.h>" > $@
+
+endif # CONFIG_MODVERSIONS
+
+ifneq "$(strip $(export-objs))" ""
+$(export-objs): $(export-objs:.o=.c) $(TOPDIR)/include/linux/modversions.h
+	$(CC) $(CFLAGS) $(EXTRA_CFLAGS_nostdinc) -DKBUILD_BASENAME=$(subst $(comma),_,$(subst -,_,$(*F))) $(CFLAGS_$@) -DEXPORT_SYMTAB -c $(@:.o=.c)
+	@ ( \
+	    echo 'ifeq ($(strip $(subst $(comma),:,$(CFLAGS) $(EXTRA_CFLAGS_nostdinc) $(CFLAGS_$@) -DEXPORT_SYMTAB)),$$(strip $$(subst $$(comma),:,$$(CFLAGS) $$(EXTRA_CFLAGS_nostdinc) $$(CFLAGS_$@) -DEXPORT_SYMTAB)))' ; \
+	    echo 'FILES_FLAGS_UP_TO_DATE += $@' ; \
+	    echo 'endif' \
+	) > $(dir $@)/.$(notdir $@).flags
+endif
+
+endif # CONFIG_MODULES
+
+
+#
+# include dependency files if they exist
+#
+ifneq ($(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