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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 $(ARCH) , mipsel mips64 mips64el ))
LINUX_KARCH := mips
else ifneq (,$(findstring $(ARCH) , powerpc64 ))
LINUX_KARCH := powerpc
else ifneq (,$(findstring $(ARCH) , riscv64 ))
LINUX_KARCH := riscv
else ifneq (,$(findstring $(ARCH) , sh2 sh3 sh4 ))
LINUX_KARCH := sh
else ifneq (,$(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 ($(DUMP),1)
CPU_CFLAGS_arc700 = -mcpu=arc700
CPU_CFLAGS_archs = -mcpu=archs
endif
ifeq ($(ARCH),riscv64)
CPU_TYPE ?= riscv64
CPU_CFLAGS_riscv64:=-mabi=lp64d -march=rv64imafdc
endif
ifneq ($(CPU_TYPE),)
ifndef CPU_CFLAGS_$(CPU_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
bool
config riscv64
select ARCH_64BIT
bool
config sh3
bool
@ -223,6 +227,7 @@ config ARCH
default "mips64el" if mips64el
default "powerpc" if powerpc
default "powerpc64" if powerpc64
default "riscv64" if riscv64
default "sh3" if sh3
default "sh3eb" if sh3eb
default "sh4" if sh4