diff options
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 | |
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')
-rw-r--r-- | share/mk/bsd.cpu.mk | 11 | ||||
-rw-r--r-- | share/mk/bsd.endian.mk | 1 | ||||
-rw-r--r-- | share/mk/bsd.sys.mk | 5 | ||||
-rw-r--r-- | share/mk/local.meta.sys.mk | 3 | ||||
-rw-r--r-- | share/mk/src.opts.mk | 7 | ||||
-rw-r--r-- | share/mk/sys.mk | 2 |
6 files changed, 26 insertions, 3 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) diff --git a/share/mk/bsd.endian.mk b/share/mk/bsd.endian.mk index 2d1a53e..c7ec42c 100644 --- a/share/mk/bsd.endian.mk +++ b/share/mk/bsd.endian.mk @@ -4,6 +4,7 @@ ${MACHINE_ARCH} == "amd64" || \ ${MACHINE_ARCH} == "i386" || \ (${MACHINE} == "arm" && ${MACHINE_ARCH:Marm*eb*} == "") || \ + ${MACHINE_CPUARCH} == "riscv" || \ ${MACHINE_ARCH:Mmips*el} != "" TARGET_ENDIANNESS= 1234 .elif ${MACHINE_ARCH} == "powerpc" || \ diff --git a/share/mk/bsd.sys.mk b/share/mk/bsd.sys.mk index 6eae174..de62195 100644 --- a/share/mk/bsd.sys.mk +++ b/share/mk/bsd.sys.mk @@ -109,6 +109,11 @@ CWARNFLAGS+= -Werror CWARNFLAGS+= -Wno-format .endif # NO_WFORMAT || NO_WFORMAT.${COMPILER_TYPE} +# GCC 5.2.0 +.if ${COMPILER_TYPE} == "gcc" && ${COMPILER_VERSION} >= 50200 +CWARNFLAGS+= -Wno-error=unused-function -Wno-error=enum-compare -Wno-error=logical-not-parentheses -Wno-error=bool-compare -Wno-error=uninitialized -Wno-error=array-bounds -Wno-error=clobbered -Wno-error=cast-align -Wno-error=extra -Wno-error=attributes -Wno-error=inline -Wno-error=unused-but-set-variable -Wno-error=unused-value -Wno-error=strict-aliasing -Wno-error=address +.endif + # How to handle FreeBSD custom printf format specifiers. .if ${COMPILER_TYPE} == "clang" && ${COMPILER_VERSION} >= 30600 FORMAT_EXTENSIONS= -D__printf__=__freebsd_kprintf__ diff --git a/share/mk/local.meta.sys.mk b/share/mk/local.meta.sys.mk index a97f6f2..1aa749a 100644 --- a/share/mk/local.meta.sys.mk +++ b/share/mk/local.meta.sys.mk @@ -48,13 +48,14 @@ TARGET_ARCHES_arm64?= aarch64 TARGET_ARCHES_mips?= mipsel mips mips64el mips64 mipsn32 mipsn32el TARGET_ARCHES_powerpc?= powerpc powerpc64 TARGET_ARCHES_pc98?= i386 +TARGET_ARCHES_riscv?= riscv64 # some corner cases BOOT_MACHINE_DIR.amd64 = boot/i386 MACHINE_ARCH.host = ${_HOST_ARCH} # the list of machines we support -ALL_MACHINE_LIST?= amd64 arm arm64 i386 mips pc98 powerpc sparc64 +ALL_MACHINE_LIST?= amd64 arm arm64 i386 mips pc98 powerpc riscv sparc64 .for m in ${ALL_MACHINE_LIST:O:u} MACHINE_ARCH_LIST.$m?= ${TARGET_ARCHES_${m}:U$m} MACHINE_ARCH.$m?= ${MACHINE_ARCH_LIST.$m:[1]} diff --git a/share/mk/src.opts.mk b/share/mk/src.opts.mk index 094019d..f94e63a 100644 --- a/share/mk/src.opts.mk +++ b/share/mk/src.opts.mk @@ -229,12 +229,17 @@ __DEFAULT_YES_OPTIONS+=GCC GCC_BOOTSTRAP GNUCXX __DEFAULT_NO_OPTIONS+=CLANG CLANG_BOOTSTRAP CLANG_FULL CLANG_IS_CC .endif # In-tree binutils/gcc are older versions without modern architecture support. -.if ${__T} == "aarch64" +.if ${__T} == "aarch64" || ${__T} == "riscv64" BROKEN_OPTIONS+=BINUTILS BINUTILS_BOOTSTRAP GCC GCC_BOOTSTRAP GDB __DEFAULT_YES_OPTIONS+=ELFCOPY_AS_OBJCOPY .else __DEFAULT_NO_OPTIONS+=ELFCOPY_AS_OBJCOPY .endif +.if ${__T} == "riscv64" +BROKEN_OPTIONS+=PROFILE # "sorry, unimplemented: profiler support for RISC-V" +BROKEN_OPTIONS+=TESTS # "undefined reference to `_Unwind_Resume'" +BROKEN_OPTIONS+=CXX # "libcxxrt.so: undefined reference to `_Unwind_Resume_or_Rethrow'" +.endif # LLVM lacks support for FreeBSD 64-bit atomic operations for ARMv4/ARMv5 .if ${__T} == "arm" || ${__T} == "armeb" BROKEN_OPTIONS+=LLDB diff --git a/share/mk/sys.mk b/share/mk/sys.mk index f9ac418..8fe6b68 100644 --- a/share/mk/sys.mk +++ b/share/mk/sys.mk @@ -13,7 +13,7 @@ unix ?= We run FreeBSD, not UNIX. # and/or endian. This is called MACHINE_CPU in NetBSD, but that's used # for something different in FreeBSD. # -MACHINE_CPUARCH=${MACHINE_ARCH:C/mips(n32|64)?(el)?/mips/:C/arm(v6)?(eb|hf)?/arm/:C/powerpc64/powerpc/} +MACHINE_CPUARCH=${MACHINE_ARCH:C/mips(n32|64)?(el)?/mips/:C/arm(v6)?(eb|hf)?/arm/:C/powerpc64/powerpc/:C/riscv64/riscv/} .endif |