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966d905634
This gives better heuristics for the cost of a multiply (fixed 5 cycles), rather than the 'ultrasparc' setting (variable, and unpredictable if the second argument is non-constant). Example code size savings: text data bss dec hex filename 3823690 304040 448880 4576610 45d562 vmlinux 3824521 304040 448880 4577441 45d8a1 vmlinux.orig Signed-off-by: David S. Miller <davem@davemloft.net>
49 lines
1.3 KiB
Makefile
49 lines
1.3 KiB
Makefile
# $Id: Makefile,v 1.52 2002/02/09 19:49:31 davem Exp $
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# sparc64/Makefile
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#
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# Makefile for the architecture dependent flags and dependencies on the
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# 64-bit Sparc.
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#
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# Copyright (C) 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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#
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CHECKFLAGS += -D__sparc__ -D__sparc_v9__ -m64
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CPPFLAGS_vmlinux.lds += -Usparc
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LDFLAGS := -m elf64_sparc
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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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head-y := arch/sparc64/kernel/head.o arch/sparc64/kernel/init_task.o
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core-y += arch/sparc64/kernel/ arch/sparc64/mm/
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core-$(CONFIG_SOLARIS_EMUL) += arch/sparc64/solaris/
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core-y += arch/sparc64/math-emu/
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libs-y += arch/sparc64/prom/ arch/sparc64/lib/
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drivers-$(CONFIG_OPROFILE) += arch/sparc64/oprofile/
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boot := arch/sparc64/boot
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image 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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define archhelp
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echo '* vmlinux - Standard sparc64 kernel'
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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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