22e256fded
bsd.cpu.mk doesn't have to worry about compilers other than the current version. - Allow TARGET_CPUTYPE to override CPUTYPE in bsd.cpu.mk. - Treat an empty CPUTYPE the same as an undefined CPUTYPE. - For buildworld, buildkernel, etc., define TARGET_CPUTYPE to CPUTYPE for native builds and define it to be empty for cross-builds. TARGET_CPUTYPE is only defined if it is not already defined via the commandline or environment.
146 lines
3.9 KiB
Makefile
146 lines
3.9 KiB
Makefile
# $FreeBSD$
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# Allow TARGET_CPUTYPE to override CPUTYPE to handle the cross-build case.
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.if defined(TARGET_CPUTYPE)
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CPUTYPE = ${TARGET_CPUTYPE}
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.endif
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# Set default CPU compile flags and baseline CPUTYPE for each arch. The
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# compile flags must support the minimum CPU type for each architecture but
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# may tune support for more advanced processors.
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.if !defined(CPUTYPE) || ${CPUTYPE} == ""
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. if ${MACHINE_ARCH} == "i386"
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_CPUCFLAGS = -mcpu=pentiumpro
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CPUTYPE = i386
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. elif ${MACHINE_ARCH} == "alpha"
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_CPUCFLAGS = -mcpu=ev4 -mtune=ev5
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CPUTYPE = ev4
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. elif ${MACHINE_ARCH} == "ia64"
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_CPUCFLAGS =
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CPUTYPE = itanium
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. elif ${MACHINE_ARCH} == "sparc64"
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_CPUCFLAGS =
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CPUTYPE = ultrasparc
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. endif
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.else
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# Handle aliases (not documented in make.conf to avoid user confusion
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# between e.g. i586 and pentium)
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. if ${MACHINE_ARCH} == "i386"
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. if ${CPUTYPE} == "pentiumpro"
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CPUTYPE = i686
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. elif ${CPUTYPE} == "pentium"
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CPUTYPE = i586
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. elif ${CPUTYPE} == "athlon"
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CPUTYPE = k7
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. endif
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. endif
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# Logic to set up correct gcc optimization flag. This must be included
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# after /etc/make.conf so it can react to the local value of CPUTYPE
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# defined therein. Consult:
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# http://gcc.gnu.org/onlinedocs/gcc/i386-and-x86-64-Options.html
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# http://gcc.gnu.org/onlinedocs/gcc/DEC-Alpha-Options.html
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# http://gcc.gnu.org/onlinedocs/gcc/SPARC-Options.html
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# http://gcc.gnu.org/onlinedocs/gcc/RS-6000-and-PowerPC-Options.html
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. if ${MACHINE_ARCH} == "i386"
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. if ${CPUTYPE} == "k7"
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_CPUCFLAGS = -march=athlon
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. elif ${CPUTYPE} == "k6-2"
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_CPUCFLAGS = -march=k6
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. elif ${CPUTYPE} == "k6"
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_CPUCFLAGS = -march=k6
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. elif ${CPUTYPE} == "k5"
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_CPUCFLAGS = -march=pentium
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. elif ${CPUTYPE} == "p4"
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_CPUCFLAGS = -march=pentiumpro
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. elif ${CPUTYPE} == "p3"
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_CPUCFLAGS = -march=pentiumpro
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. elif ${CPUTYPE} == "p2"
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_CPUCFLAGS = -march=pentiumpro
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. elif ${CPUTYPE} == "i686"
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_CPUCFLAGS = -march=pentiumpro
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. elif ${CPUTYPE} == "i586/mmx"
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_CPUCFLAGS = -march=pentium-mmx
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. elif ${CPUTYPE} == "i586"
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_CPUCFLAGS = -march=pentium
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. elif ${CPUTYPE} == "i486"
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_CPUCFLAGS = -march=i486
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. endif
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. elif ${MACHINE_ARCH} == "alpha"
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. if ${CPUTYPE} == "ev6"
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_CPUCFLAGS = -mcpu=ev6
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. elif ${CPUTYPE} == "pca56"
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_CPUCFLAGS = -mcpu=pca56
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. elif ${CPUTYPE} == "ev56"
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_CPUCFLAGS = -mcpu=ev56
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. elif ${CPUTYPE} == "ev5"
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_CPUCFLAGS = -mcpu=ev5
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. elif ${CPUTYPE} == "ev45"
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_CPUCFLAGS = -mcpu=ev4 # No -mcpu=ev45 for gcc
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. elif ${CPUTYPE} == "ev4"
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_CPUCFLAGS = -mcpu=ev4
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. endif
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. endif
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.endif
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# NB: COPTFLAGS is handled in /usr/src/sys/conf/Makefile.<arch>
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.if !defined(NO_CPU_CFLAGS)
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CFLAGS += ${_CPUCFLAGS}
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.endif
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# Set up the list of CPU features based on the CPU type. This is an
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# unordered list to make it easy for client makefiles to test for the
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# presence of a CPU feature.
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.if ${MACHINE_ARCH} == "i386"
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. if ${CPUTYPE} == "k7"
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MACHINE_CPU = k7 3dnow mmx k6 k5 i586 i486 i386
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. elif ${CPUTYPE} == "k6-2"
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MACHINE_CPU = 3dnow mmx k6 k5 i586 i486 i386
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. elif ${CPUTYPE} == "k6"
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MACHINE_CPU = mmx k6 k5 i586 i486 i386
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. elif ${CPUTYPE} == "k5"
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MACHINE_CPU = k5 i586 i486 i386
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. elif ${CPUTYPE} == "p4"
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MACHINE_CPU = sse i686 mmx i586 i486 i386
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. elif ${CPUTYPE} == "p3"
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MACHINE_CPU = sse i686 mmx i586 i486 i386
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. elif ${CPUTYPE} == "p2"
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MACHINE_CPU = i686 mmx i586 i486 i386
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. elif ${CPUTYPE} == "i686"
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MACHINE_CPU = i686 i586 i486 i386
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. elif ${CPUTYPE} == "i586/mmx"
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MACHINE_CPU = mmx i586 i486 i386
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. elif ${CPUTYPE} == "i586"
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MACHINE_CPU = i586 i486 i386
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. elif ${CPUTYPE} == "i486"
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MACHINE_CPU = i486 i386
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. elif ${CPUTYPE} == "i386"
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MACHINE_CPU = i386
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. endif
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.elif ${MACHINE_ARCH} == "alpha"
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. if ${CPUTYPE} == "ev6"
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MACHINE_CPU = ev6 ev56 pca56 ev5 ev45 ev4
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. elif ${CPUTYPE} == "pca56"
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MACHINE_CPU = pca56 ev56 ev5 ev45 ev4
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. elif ${CPUTYPE} == "ev56"
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MACHINE_CPU = ev56 ev5 ev45 ev4
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. elif ${CPUTYPE} == "ev5"
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MACHINE_CPU = ev5 ev45 ev4
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. elif ${CPUTYPE} == "ev45"
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MACHINE_CPU = ev45 ev4
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. elif ${CPUTYPE} == "ev4"
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MACHINE_CPU = ev4
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. endif
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.elif ${MACHINE_ARCH} == "ia64"
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. if ${CPUTYPE} == "itanium"
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MACHINE_CPU = itanium
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. endif
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.endif
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