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generic: groundwork for RISC-V 

Add build infrastructure for RISC-V.

Signed-off-by: Zoltan HERPAI <wigyori@uid0.hu>
This commit is contained in:
Zoltan HERPAI 2018-12-16 10:45:53 +01:00
parent a15730a4eb
commit 50c05f6cd7
4 changed files with 41 additions and 0 deletions
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2
include/kernel.mk
View File

@ -90,6 +90,8 @@ else ifneq (,$(findstring $(ARCH) , mipsel mips64 mips64el ))
LINUX_KARCH := mips LINUX_KARCH := mips
else ifneq (,$(findstring $(ARCH) , powerpc64 )) else ifneq (,$(findstring $(ARCH) , powerpc64 ))
LINUX_KARCH := powerpc LINUX_KARCH := powerpc
else ifneq (,$(findstring $(ARCH) , riscv64 ))
LINUX_KARCH := riscv
else ifneq (,$(findstring $(ARCH) , sh2 sh3 sh4 )) else ifneq (,$(findstring $(ARCH) , sh2 sh3 sh4 ))
LINUX_KARCH := sh LINUX_KARCH := sh
else ifneq (,$(findstring $(ARCH) , i386 x86_64 )) else ifneq (,$(findstring $(ARCH) , i386 x86_64 ))

30
include/site/riscv64 Normal file
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@ -0,0 +1,30 @@
#!/bin/sh
. $TOPDIR/include/site/linux
ac_cv_c_littleendian=${ac_cv_c_littleendian=yes}
ac_cv_c_bigendian=${ac_cv_c_bigendian=no}
ac_cv_sizeof___int64=8
ac_cv_sizeof_char=1
ac_cv_sizeof_int=4
ac_cv_sizeof_int16_t=2
ac_cv_sizeof_int32_t=4
ac_cv_sizeof_int64_t=8
ac_cv_sizeof_long_int=8
ac_cv_sizeof_long_long=8
ac_cv_sizeof_long=8
ac_cv_sizeof_off_t=8
ac_cv_sizeof_short_int=2
ac_cv_sizeof_short=2
ac_cv_sizeof_size_t=8
ac_cv_sizeof_ssize_t=8
ac_cv_sizeof_u_int16_t=2
ac_cv_sizeof_u_int32_t=4
ac_cv_sizeof_u_int64_t=8
ac_cv_sizeof_uint16_t=2
ac_cv_sizeof_uint32_t=4
ac_cv_sizeof_uint64_t=8
ac_cv_sizeof_unsigned_int=4
ac_cv_sizeof_unsigned_long=8
ac_cv_sizeof_unsigned_long_long=8
ac_cv_sizeof_unsigned_short=2
ac_cv_sizeof_void_p=8

4
include/target.mk
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@ -260,6 +260,10 @@ ifeq ($(DUMP),1)
CPU_CFLAGS_arc700 = -mcpu=arc700 CPU_CFLAGS_arc700 = -mcpu=arc700
CPU_CFLAGS_archs = -mcpu=archs CPU_CFLAGS_archs = -mcpu=archs
endif endif
ifeq ($(ARCH),riscv64)
CPU_TYPE ?= riscv64
CPU_CFLAGS_riscv64:=-mabi=lp64d -march=rv64imafdc
endif
ifneq ($(CPU_TYPE),) ifneq ($(CPU_TYPE),)
ifndef CPU_CFLAGS_$(CPU_TYPE) ifndef CPU_CFLAGS_$(CPU_TYPE)
$(warning CPU_TYPE "$(CPU_TYPE)" doesn't correspond to a known type) $(warning CPU_TYPE "$(CPU_TYPE)" doesn't correspond to a known type)

5
target/Config.in
View File

@ -184,6 +184,10 @@ config powerpc64
select ARCH_64BIT select ARCH_64BIT
bool bool
config riscv64
select ARCH_64BIT
bool
config sh3 config sh3
bool bool
@ -223,6 +227,7 @@ config ARCH
default "mips64el" if mips64el default "mips64el" if mips64el
default "powerpc" if powerpc default "powerpc" if powerpc
default "powerpc64" if powerpc64 default "powerpc64" if powerpc64
default "riscv64" if riscv64
default "sh3" if sh3 default "sh3" if sh3
default "sh3eb" if sh3eb default "sh3eb" if sh3eb
default "sh4" if sh4 default "sh4" if sh4