[PATCH] CRIS update: configuration and build

Changes to configuration and build system.

* Added v32 sub architecture.
* Use generic hard IRQ.
* Added SMP options.
* Added options to OOPS at NMI and reboot at OOM.
* Made it possible to set objtree.
* Added option to select Kernel GDB serial port.
* Corrected Kconfig usage.
* Added system profiler.

Signed-off-by: Mikael Starvik <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>

arch/cris/Kconfig.debug

@@ -38,4 +38,9 @@ config FRAME_POINTER
           If you don't debug the kernel, you can say N, but we may not be able
           to solve problems without frame pointers.
 
+config DEBUG_NMI_OOPS
+       bool "NMI causes oops printout"
+       help
+         If the system locks up without any debug information you can say Y
+         here to make it possible to dump an OOPS with an external NMI.
 endmenu

arch/cris/Makefile

@@ -1,4 +1,4 @@
-# $Id: Makefile,v 1.23 2004/10/19 13:07:34 starvik Exp $
+# $Id: Makefile,v 1.28 2005/03/17 10:44:37 larsv Exp $
 # cris/Makefile
 #
 # This file is included by the global makefile so that you can add your own
@@ -15,6 +15,7 @@
 
 arch-y := v10
 arch-$(CONFIG_ETRAX_ARCH_V10) := v10
+arch-$(CONFIG_ETRAX_ARCH_V32) := v32
 
 # No config avaiable for make clean etc
 ifneq ($(arch-y),)
@@ -46,6 +47,21 @@ core-y		+= arch/$(ARCH)/$(SARCH)/kernel/ arch/$(ARCH)/$(SARCH)/mm/
 drivers-y	+= arch/$(ARCH)/$(SARCH)/drivers/
 libs-y		+= arch/$(ARCH)/$(SARCH)/lib/ $(LIBGCC)
 
+# cris source path
+SRC_ARCH              = $(srctree)/arch/$(ARCH)
+# cris object files path
+OBJ_ARCH              = $(objtree)/arch/$(ARCH)
+
+target_boot_arch_dir  = $(OBJ_ARCH)/$(SARCH)/boot
+target_boot_dir       = $(OBJ_ARCH)/boot
+src_boot_dir          = $(SRC_ARCH)/boot
+target_compressed_dir = $(OBJ_ARCH)/boot/compressed
+src_compressed_dir    = $(SRC_ARCH)/boot/compressed
+target_rescue_dir     = $(OBJ_ARCH)/boot/rescue
+src_rescue_dir        = $(SRC_ARCH)/boot/rescue
+
+export target_boot_arch_dir target_boot_dir src_boot_dir target_compressed_dir src_compressed_dir target_rescue_dir src_rescue_dir
+
 vmlinux.bin: vmlinux
 	$(OBJCOPY) $(OBJCOPYFLAGS) vmlinux vmlinux.bin
 
@@ -65,44 +81,52 @@ cramfs:
 
 clinux: vmlinux.bin decompress.bin rescue.bin
 
-decompress.bin: FORCE
-	@make -C arch/$(ARCH)/boot/compressed decompress.bin
+decompress.bin: $(target_boot_dir)
+	@$(MAKE) -f $(src_compressed_dir)/Makefile $(target_compressed_dir)/decompress.bin
 
-rescue.bin: FORCE
-	@make -C arch/$(ARCH)/boot/rescue rescue.bin
+$(target_rescue_dir)/rescue.bin: $(target_boot_dir)
+	@$(MAKE) -f $(src_rescue_dir)/Makefile $(target_rescue_dir)/rescue.bin
 
-zImage: vmlinux.bin rescue.bin
+zImage: $(target_boot_dir) vmlinux.bin $(target_rescue_dir)/rescue.bin
 ## zImage     - Compressed kernel (gzip)
-	@make -C arch/$(ARCH)/boot/ zImage
+	@$(MAKE) -f $(src_boot_dir)/Makefile zImage
+
+$(target_boot_dir): $(target_boot_arch_dir)
+	ln -sfn $< $@
+
+$(target_boot_arch_dir):
+	mkdir -p $@
 
 compressed: zImage
 
 archmrproper:
 archclean:
-	$(Q)$(MAKE) $(clean)=arch/$(ARCH)/boot
+	@if [ -d arch/$(ARCH)/boot ]; then \
+		$(MAKE) $(clean)=arch/$(ARCH)/boot ; \
+	fi
 	rm -f timage vmlinux.bin decompress.bin rescue.bin cramfs.img
 	rm -rf $(LD_SCRIPT).tmp
 
-prepare: arch/$(ARCH)/.links include/asm-$(ARCH)/.arch \
+prepare: $(SRC_ARCH)/.links $(srctree)/include/asm-$(ARCH)/.arch \
 	 include/asm-$(ARCH)/$(SARCH)/offset.h
 
 # Create some links to make all tools happy
-arch/$(ARCH)/.links:
-	@rm -rf arch/$(ARCH)/drivers
-	@ln -sfn $(SARCH)/drivers arch/$(ARCH)/drivers
-	@rm -rf arch/$(ARCH)/boot
-	@ln -sfn $(SARCH)/boot arch/$(ARCH)/boot
-	@rm -rf arch/$(ARCH)/lib
-	@ln -sfn $(SARCH)/lib arch/$(ARCH)/lib
-	@ln -sfn $(SARCH) arch/$(ARCH)/arch
-	@ln -sfn ../$(SARCH)/vmlinux.lds.S arch/$(ARCH)/kernel/vmlinux.lds.S
+$(SRC_ARCH)/.links:
+	@rm -rf $(SRC_ARCH)/drivers
+	@ln -sfn $(SRC_ARCH)/$(SARCH)/drivers $(SRC_ARCH)/drivers
+	@rm -rf $(SRC_ARCH)/boot
+	@ln -sfn $(SRC_ARCH)/$(SARCH)/boot $(SRC_ARCH)/boot
+	@rm -rf $(SRC_ARCH)/lib
+	@ln -sfn $(SRC_ARCH)/$(SARCH)/lib $(SRC_ARCH)/lib
+	@ln -sfn $(SRC_ARCH)/$(SARCH) $(SRC_ARCH)/arch
+	@ln -sfn $(SRC_ARCH)/$(SARCH)/vmlinux.lds.S $(SRC_ARCH)/kernel/vmlinux.lds.S
 	@touch $@
 
 # Create link to sub arch includes
-include/asm-$(ARCH)/.arch: $(wildcard include/config/arch/*.h)
-	@echo '  Making asm-$(ARCH)/arch -> asm-$(ARCH)/$(SARCH) symlink'
+$(srctree)/include/asm-$(ARCH)/.arch: $(wildcard include/config/arch/*.h)
+	@echo '  Making $(srctree)/include/asm-$(ARCH)/arch -> $(srctree)/include/asm-$(ARCH)/$(SARCH) symlink'
 	@rm -f include/asm-$(ARCH)/arch
-	@ln -sf $(SARCH) include/asm-$(ARCH)/arch
+	@ln -sf $(srctree)/include/asm-$(ARCH)/$(SARCH) $(srctree)/include/asm-$(ARCH)/arch
 	@touch $@
 
 arch/$(ARCH)/$(SARCH)/kernel/asm-offsets.s: include/asm include/linux/version.h \

arch/cris/arch-v10/Kconfig

@@ -259,6 +259,37 @@ config ETRAX_DEBUG_PORT_NULL
 
 endchoice
 
+choice
+	prompt "Kernel GDB port"
+	depends on ETRAX_KGDB
+	default ETRAX_KGDB_PORT0
+	help
+	  Choose a serial port for kernel debugging.  NOTE: This port should
+	  not be enabled under Drivers for built-in interfaces (as it has its
+	  own initialization code) and should not be the same as the debug port.
+
+config ETRAX_KGDB_PORT0
+	bool "Serial-0"
+	help
+	  Use serial port 0 for kernel debugging.
+
+config ETRAX_KGDB_PORT1
+	bool "Serial-1"
+	help
+	  Use serial port 1 for kernel debugging.
+
+config ETRAX_KGDB_PORT2
+	bool "Serial-2"
+	help
+	  Use serial port 2 for kernel debugging.
+
+config ETRAX_KGDB_PORT3
+	bool "Serial-3"
+	help
+	  Use serial port 3 for kernel debugging.
+
+endchoice
+
 choice
 	prompt "Product rescue-port"
 	depends on ETRAX_ARCH_V10

arch/cris/arch-v10/boot/Makefile

@@ -1,12 +1,13 @@
 #
 # arch/cris/boot/Makefile
 #
+target = $(target_boot_dir)
+src    = $(src_boot_dir)
 
 zImage: compressed/vmlinuz
 
-compressed/vmlinuz: $(TOPDIR)/vmlinux
-	@$(MAKE) -C compressed vmlinuz
+compressed/vmlinuz:
+	@$(MAKE) -f $(src)/compressed/Makefile $(target_compressed_dir)/vmlinuz
 
 clean:
-	rm -f zImage tools/build compressed/vmlinux.out
-	@$(MAKE) -C compressed clean
+	@$(MAKE) -f $(src)/compressed/Makefile clean

arch/cris/arch-v10/boot/compressed/Makefile

@@ -1,40 +1,45 @@
 #
-# linux/arch/etrax100/boot/compressed/Makefile
-#
-# create a compressed vmlinux image from the original vmlinux files and romfs
+# create a compressed vmlinuz image from the binary vmlinux.bin file
 #
+target = $(target_compressed_dir)
+src    = $(src_compressed_dir)
 
-CC = gcc-cris -melf -I $(TOPDIR)/include
+CC = gcc-cris -melf $(LINUXINCLUDE)
 CFLAGS = -O2
 LD = ld-cris
 OBJCOPY = objcopy-cris
 OBJCOPYFLAGS = -O binary --remove-section=.bss
-OBJECTS = head.o misc.o
+OBJECTS = $(target)/head.o $(target)/misc.o
 
 # files to compress
-SYSTEM = $(TOPDIR)/vmlinux.bin
+SYSTEM = $(objtree)/vmlinux.bin
 
-all: vmlinuz
+all: $(target_compressed_dir)/vmlinuz
 
-decompress.bin: $(OBJECTS)
-	$(LD) -T decompress.ld -o decompress.o $(OBJECTS)
-	$(OBJCOPY) $(OBJCOPYFLAGS) decompress.o decompress.bin
-# save it for mkprod in the topdir.
-	cp decompress.bin $(TOPDIR)
+$(target)/decompress.bin: $(OBJECTS)
+	$(LD) -T $(src)/decompress.ld -o $(target)/decompress.o $(OBJECTS)
+	$(OBJCOPY) $(OBJCOPYFLAGS) $(target)/decompress.o $(target)/decompress.bin
 
+# Create vmlinuz image in top-level build directory
+$(target_compressed_dir)/vmlinuz: $(target) piggy.img $(target)/decompress.bin
+	@echo "  COMPR   vmlinux.bin --> vmlinuz"
+	@cat $(target)/decompress.bin piggy.img > $(target_compressed_dir)/vmlinuz
+	@rm -f piggy.img
 
-vmlinuz: piggy.img decompress.bin
-	cat decompress.bin piggy.img > vmlinuz
-	rm -f piggy.img
+$(target)/head.o: $(src)/head.S
+	$(CC) -D__ASSEMBLY__ -traditional -c $< -o $@
 
-head.o: head.S
-	$(CC) -D__ASSEMBLY__ -traditional -c head.S -o head.o
+$(target)/misc.o: $(src)/misc.c
+	$(CC) -D__KERNEL__ -c $< -o $@
 
 # gzip the kernel image
 
 piggy.img: $(SYSTEM)
-	cat $(SYSTEM) | gzip -f -9 > piggy.img
+	@cat $(SYSTEM) | gzip -f -9 > piggy.img
+
+$(target):
+	mkdir -p $(target)
 
 clean:
-	rm -f piggy.img vmlinuz vmlinuz.o
+	rm -f piggy.img $(objtree)/vmlinuz
 

arch/cris/arch-v10/boot/rescue/Makefile

@@ -1,52 +1,53 @@
 #
 # Makefile for rescue code
 #
-ifndef TOPDIR
-TOPDIR = ../../../..
-endif
-CC = gcc-cris -mlinux -I $(TOPDIR)/include
+target = $(target_rescue_dir)
+src    = $(src_rescue_dir)
+
+CC = gcc-cris -mlinux $(LINUXINCLUDE)
 CFLAGS = -O2
 LD = gcc-cris -mlinux -nostdlib
 OBJCOPY = objcopy-cris
 OBJCOPYFLAGS = -O binary --remove-section=.bss
 
-all: rescue.bin testrescue.bin kimagerescue.bin
-
-rescue: rescue.bin
-	# do nothing
+all: $(target)/rescue.bin $(target)/testrescue.bin $(target)/kimagerescue.bin
 
-rescue.bin: head.o
-	$(LD) -T rescue.ld -o rescue.o head.o
-	$(OBJCOPY) $(OBJCOPYFLAGS) rescue.o rescue.bin
-	cp rescue.bin $(TOPDIR)
+$(target)/rescue.bin: $(target) $(target)/head.o
+	$(LD) -T $(src)/rescue.ld -o $(target)/rescue.o $(target)/head.o
+	$(OBJCOPY) $(OBJCOPYFLAGS) $(target)/rescue.o $(target)/rescue.bin
+# Place a copy in top-level build directory
+	cp -p $(target)/rescue.bin $(objtree)
 
-testrescue.bin: testrescue.o
-	$(OBJCOPY) $(OBJCOPYFLAGS) testrescue.o tr.bin
+$(target)/testrescue.bin: $(target) $(target)/testrescue.o
+	$(OBJCOPY) $(OBJCOPYFLAGS) $(target)/testrescue.o tr.bin
 # Pad it to 784 bytes
 	dd if=/dev/zero of=tmp2423 bs=1 count=784
 	cat tr.bin tmp2423 >testrescue_tmp.bin
-	dd if=testrescue_tmp.bin of=testrescue.bin bs=1 count=784
+	dd if=testrescue_tmp.bin of=$(target)/testrescue.bin bs=1 count=784
 	rm tr.bin tmp2423 testrescue_tmp.bin
 
-kimagerescue.bin: kimagerescue.o
-	$(OBJCOPY) $(OBJCOPYFLAGS) kimagerescue.o ktr.bin
+$(target)/kimagerescue.bin: $(target) $(target)/kimagerescue.o
+	$(OBJCOPY) $(OBJCOPYFLAGS) $(target)/kimagerescue.o ktr.bin
 # Pad it to 784 bytes, that's what the rescue loader expects
 	dd if=/dev/zero of=tmp2423 bs=1 count=784
 	cat ktr.bin tmp2423 >kimagerescue_tmp.bin
-	dd if=kimagerescue_tmp.bin of=kimagerescue.bin bs=1 count=784
+	dd if=kimagerescue_tmp.bin of=$(target)/kimagerescue.bin bs=1 count=784
 	rm ktr.bin tmp2423 kimagerescue_tmp.bin
 
-head.o: head.S
+$(target):
+	mkdir -p $(target)
+
+$(target)/head.o: $(src)/head.S
 	$(CC) -D__ASSEMBLY__ -traditional -c $< -o $*.o
 
-testrescue.o: testrescue.S
+$(target)/testrescue.o: $(src)/testrescue.S
 	$(CC) -D__ASSEMBLY__ -traditional -c $< -o $*.o
 
-kimagerescue.o: kimagerescue.S
+$(target)/kimagerescue.o: $(src)/kimagerescue.S
 	$(CC) -D__ASSEMBLY__ -traditional -c $< -o $*.o
 
 clean:
-	rm -f *.o *.bin
+	rm -f $(target)/*.o $(target)/*.bin
 
 fastdep: