e0adb9902f
Newer version of binutils are more strict about specifying the correct options to enable certain classes of instructions. The sparc32 build is done for v7 in order to support sun4c systems which lack hardware integer multiply and divide instructions. So we have to pass -Av8 when building the assembler routines that use these instructions and get patched into the kernel when we find out that we have a v8 capable cpu. Reported-by: Paul Gortmaker <paul.gortmaker@windriver.com> Signed-off-by: David S. Miller <davem@davemloft.net>
116 lines
3.1 KiB
Makefile
116 lines
3.1 KiB
Makefile
#
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# sparc/Makefile
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#
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# Makefile for the architecture dependent flags and dependencies on the
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# Sparc and sparc64.
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#
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# Copyright (C) 1994,1996,1998 David S. Miller (davem@caip.rutgers.edu)
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# Copyright (C) 1998 Jakub Jelinek (jj@ultra.linux.cz)
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# We are not yet configured - so test on arch
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ifeq ($(ARCH),sparc)
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KBUILD_DEFCONFIG := sparc32_defconfig
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else
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KBUILD_DEFCONFIG := sparc64_defconfig
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endif
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ifeq ($(CONFIG_SPARC32),y)
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#####
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# sparc32
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#
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#
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# Uncomment the first KBUILD_CFLAGS if you are doing kgdb source level
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# debugging of the kernel to get the proper debugging information.
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AS := $(AS) -32
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LDFLAGS := -m elf32_sparc
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CHECKFLAGS += -D__sparc__
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export BITS := 32
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UTS_MACHINE := sparc
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#KBUILD_CFLAGS += -g -pipe -fcall-used-g5 -fcall-used-g7
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KBUILD_CFLAGS += -m32 -pipe -mno-fpu -fcall-used-g5 -fcall-used-g7
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KBUILD_AFLAGS += -m32 -Wa,-Av8
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#LDFLAGS_vmlinux = -N -Ttext 0xf0004000
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# Since 2.5.40, the first stage is left not btfix-ed.
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# Actual linking is done with "make image".
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LDFLAGS_vmlinux = -r
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else
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#####
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# sparc64
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#
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CHECKFLAGS += -D__sparc__ -D__sparc_v9__ -D__arch64__ -m64
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LDFLAGS := -m elf64_sparc
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export BITS := 64
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UTS_MACHINE := sparc64
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KBUILD_CFLAGS += -m64 -pipe -mno-fpu -mcpu=ultrasparc -mcmodel=medlow \
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-ffixed-g4 -ffixed-g5 -fcall-used-g7 -Wno-sign-compare \
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-Wa,--undeclared-regs
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KBUILD_CFLAGS += $(call cc-option,-mtune=ultrasparc3)
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KBUILD_AFLAGS += -m64 -mcpu=ultrasparc -Wa,--undeclared-regs
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ifeq ($(CONFIG_MCOUNT),y)
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KBUILD_CFLAGS += -pg
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endif
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endif
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head-y := arch/sparc/kernel/head_$(BITS).o
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head-y += arch/sparc/kernel/init_task.o
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core-y += arch/sparc/kernel/
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core-y += arch/sparc/mm/ arch/sparc/math-emu/
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libs-y += arch/sparc/prom/
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libs-y += arch/sparc/lib/
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drivers-$(CONFIG_OPROFILE) += arch/sparc/oprofile/
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# Export what is needed by arch/sparc/boot/Makefile
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export VMLINUX_INIT VMLINUX_MAIN
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VMLINUX_INIT := $(head-y) $(init-y)
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VMLINUX_MAIN := $(core-y) kernel/ mm/ fs/ ipc/ security/ crypto/ block/
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VMLINUX_MAIN += $(patsubst %/, %/lib.a, $(libs-y)) $(libs-y)
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VMLINUX_MAIN += $(drivers-y) $(net-y)
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ifdef CONFIG_KALLSYMS
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export kallsyms.o := .tmp_kallsyms2.o
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endif
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boot := arch/sparc/boot
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# Default target
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all: zImage
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image zImage uImage tftpboot.img vmlinux.aout: vmlinux
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$(Q)$(MAKE) $(build)=$(boot) $(boot)/$@
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archclean:
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$(Q)$(MAKE) $(clean)=$(boot)
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# This is the image used for packaging
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KBUILD_IMAGE := $(boot)/zImage
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# Don't use tabs in echo arguments.
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ifeq ($(ARCH),sparc)
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define archhelp
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echo '* image - kernel image ($(boot)/image)'
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echo '* zImage - stripped kernel image ($(boot)/zImage)'
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echo ' uImage - U-Boot SPARC32 Image (only for LEON)'
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echo ' tftpboot.img - image prepared for tftp'
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endef
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else
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define archhelp
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echo '* vmlinux - standard sparc64 kernel'
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echo '* zImage - stripped and compressed sparc64 kernel ($(boot)/zImage)'
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echo ' vmlinux.aout - a.out kernel for sparc64'
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echo ' tftpboot.img - image prepared for tftp'
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endef
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endif
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