4da573d910
r238211: Support TARGET_ARCH=armv6 and TARGET_ARCH=armv6eb This adds a new TARGET_ARCH for building on ARM processors that support the ARMv6K multiprocessor extensions. In particular, these processors have better support for TLS and mutex operations. This mostly touches a lot of Makefiles to extend existing patterns for inferring CPUARCH from ARCH. It also configures: * GCC to default to arm1176jz-s * GCC to predefine __FreeBSD_ARCH_armv6__ * gas to default to ARM_ARCH_V6K * uname -p to return 'armv6' * make so that MACHINE_ARCH defaults to 'armv6' It also changes a number of headers to use the compiler __ARM_ARCH_XXX__ macros to configure processor-specific support routines. Submitted by: Tim Kientzle <kientzle@freebsd.org>
107 lines
2.8 KiB
Makefile
107 lines
2.8 KiB
Makefile
# $FreeBSD$
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.include "../Makefile.inc"
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# Sometimes this is .include'd several times...
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.if !defined(__CC_MAKEFILE_INC__)
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__CC_MAKEFILE_INC__= ${MFILE}
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GCCVER= 4.2
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GCCDIR= ${.CURDIR}/../../../../contrib/gcc
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GCCLIB= ${.CURDIR}/../../../../contrib/gcclibs
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.include "Makefile.tgt"
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# Machine description.
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MD_FILE= ${GCCDIR}/config/${GCC_CPU}/${GCC_CPU}.md
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GCC_TARGET= ${TARGET_ARCH}-undermydesk-freebsd
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CFLAGS+= -DGCCVER=\"${GCCVER}\"
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CFLAGS+= -DIN_GCC -DHAVE_CONFIG_H
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CFLAGS+= -DPREFIX=\"${TOOLS_PREFIX}/usr\"
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#CFLAGS+= -DWANT_COMPILER_INVARIANTS
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CSTD?= gnu89
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.if ${TARGET_ARCH} != ${MACHINE_ARCH}
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CFLAGS+= -DCROSS_COMPILE
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.endif
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.if ${TARGET_ARCH} == "armeb" || ${TARGET_ARCH} == "armv6eb"
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CFLAGS += -DTARGET_ENDIAN_DEFAULT=MASK_BIG_END
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.endif
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.if ${TARGET_ARCH} == "armv6" || ${TARGET_ARCH} == "armv6eb"
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CFLAGS += -DFREEBSD_ARCH_armv6
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.endif
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.if ${TARGET_CPUARCH} == "mips"
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.if ${TARGET_ARCH:Mmips*el} != ""
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CFLAGS += -DTARGET_ENDIAN_DEFAULT=0
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.endif
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.if ${TARGET_ARCH:Mmips64*} != ""
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MIPS_ABI_DEFAULT=ABI_64
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.elif ${TARGET_ARCH:Mmipsn32*} != ""
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MIPS_ABI_DEFAULT=ABI_N32
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.else
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MIPS_ABI_DEFAULT=ABI_32
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.endif
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CFLAGS += -DMIPS_ABI_DEFAULT=${MIPS_ABI_DEFAULT}
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# If we are compiling for the O32 ABI, we need to default to MIPS-III rather
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# than taking the ISA from the ABI requirements, since FreeBSD is built with
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# a number of MIPS-III features/instructions and that is the minimum ISA we
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# support, not the O32 default MIPS-I.
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.if ${MIPS_ABI_DEFAULT} == "ABI_32"
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TARGET_CPUTYPE?=mips3
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.endif
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# GCC by default takes the ISA from the ABI's requirements. If world is built
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# with a superior ISA, since we lack multilib, we have to set the right
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# default ISA to be able to link against what's in /usr/lib. Terrible stuff.
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.if defined(TARGET_CPUTYPE)
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CFLAGS += -DMIPS_CPU_STRING_DEFAULT=\"${TARGET_CPUTYPE}\"
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.endif
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.endif
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.if defined(WANT_FORCE_OPTIMIZATION_DOWNGRADE)
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CFLAGS+= -DFORCE_OPTIMIZATION_DOWNGRADE=${WANT_FORCE_OPTIMIZATION_DOWNGRADE}
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.endif
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.if exists(${.OBJDIR}/../cc_tools)
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CFLAGS+= -I${.OBJDIR}/../cc_tools
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.endif
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CFLAGS+= -I${.CURDIR}/../cc_tools
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# This must go after the -I for cc_tools to resolve ambiguities for hash.h
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# correctly.
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CFLAGS+= -I${GCCDIR} -I${GCCDIR}/config
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CFLAGS+= -I${GCCLIB}/include
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CFLAGS+= -I${GCCLIB}/libcpp/include
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CFLAGS+= -I${GCCLIB}/libdecnumber
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.if exists(${.OBJDIR}/../cc_int)
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LIBBACKEND= ${.OBJDIR}/../cc_int/libbackend.a
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.else
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LIBBACKEND= ${.CURDIR}/../cc_int/libbackend.a
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.endif
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.if exists(${.OBJDIR}/../libiberty)
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LIBIBERTY= ${.OBJDIR}/../libiberty/libiberty.a
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.else
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LIBIBERTY= ${.CURDIR}/../libiberty/libiberty.a
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.endif
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.if exists(${.OBJDIR}/../libcpp)
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LIBCPP= ${.OBJDIR}/../libcpp/libcpp.a
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.else
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LIBCPP= ${.CURDIR}/../libcpp/libcpp.a
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.endif
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.if exists(${.OBJDIR}/../libdecnumber)
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LIBDECNUMBER= ${.OBJDIR}/../libdecnumber/libdecnumber.a
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.else
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LIBDECNUMBER= ${.CURDIR}/../libdecnumber/libdecnumber.a
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.endif
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.endif # !__CC_MAKEFILE_INC__
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