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| author | br <br@FreeBSD.org> | 2015-12-11 22:55:23 +0000 |
|---|---|---|
| committer | br <br@FreeBSD.org> | 2015-12-11 22:55:23 +0000 |
| commit | e10e8212ee93ce83ca450cc277687c96a828f398 (patch) | |
| tree | 8d05418c0387dad6bfb0579dd063e716f1f65109 /share/mk/bsd.cpu.mk | |
| parent | 7fd0d14bf5c00a44cde73d32e20a6209088f7013 (diff) | |
| download | FreeBSD-src-e10e8212ee93ce83ca450cc277687c96a828f398.zip FreeBSD-src-e10e8212ee93ce83ca450cc277687c96a828f398.tar.gz | |
Start support for the RISC-V 64-bit architecture developed by UC Berkeley.
RISC-V is a new ISA designed to support computer research and education, and
is now become a standard open architecture for industry implementations.
This is a minimal set of changes required to run 'make kernel-toolchain'
using external (GNU) toolchain.
The FreeBSD/RISC-V project home: https://wiki.freebsd.org/riscv.
Reviewed by: andrew, bdrewery, emaste, imp
Sponsored by: DARPA, AFRL
Sponsored by: HEIF5
Differential Revision: https://reviews.freebsd.org/D4445
Diffstat (limited to 'share/mk/bsd.cpu.mk')
| -rw-r--r-- | share/mk/bsd.cpu.mk | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/share/mk/bsd.cpu.mk b/share/mk/bsd.cpu.mk index 1ab7595..d54a354 100644 --- a/share/mk/bsd.cpu.mk +++ b/share/mk/bsd.cpu.mk @@ -18,6 +18,8 @@ MACHINE_CPU = i486 MACHINE_CPU = mips . elif ${MACHINE_CPUARCH} == "powerpc" MACHINE_CPU = aim +. elif ${MACHINE_CPUARCH} == "riscv" +MACHINE_CPU = riscv . elif ${MACHINE_CPUARCH} == "sparc64" MACHINE_CPU = ultrasparc . endif @@ -148,6 +150,8 @@ _CPUCFLAGS = -march=${CPUTYPE} # sb1, xlp, xlr _CPUCFLAGS = -march=${CPUTYPE:S/^mips//} . endif +. elif ${MACHINE_CPUARCH} == "riscv" +_CPUCFLAGS = -msoft-float # -march="RV64I" # RISCVTODO . elif ${MACHINE_ARCH} == "sparc64" . if ${CPUTYPE} == "v9" _CPUCFLAGS = -mcpu=v9 @@ -277,6 +281,9 @@ MACHINE_CPU = mips . if ${CPUTYPE} == "e500" MACHINE_CPU = booke softfp . endif +########## riscv +. elif ${MACHINE_CPUARCH} == "riscv" +MACHINE_CPU = riscv ########## sparc64 . elif ${MACHINE_ARCH} == "sparc64" . if ${CPUTYPE} == "v9" @@ -313,6 +320,10 @@ CFLAGS += -mfloat-abi=softfp .endif .endif +.if ${MACHINE_CPUARCH} == "riscv" +CFLAGS += -msoft-float +.endif + # NB: COPTFLAGS is handled in /usr/src/sys/conf/kern.pre.mk .if !defined(NO_CPU_CFLAGS) |
