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arch/risc-v: add rv64ilp32 toolchain

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This adds support of rv64ilp32 toolchain available from Github repo
`ruyisdk/riscv-gnu-toolchain-rv64ilp32`. With this 32-bit nuttx can
be generated for RV64 devices.

Signed-off-by: Yanfeng Liu <yfliu2008@qq.com>
This commit is contained in:
Yanfeng Liu 2024-06-08 08:45:28 +08:00 committed by Xiang Xiao
parent d029e88472
commit 33afbaadb9
3 changed files with 34 additions and 4 deletions
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15
arch/risc-v/Kconfig
View File

@ -337,7 +337,12 @@ config ARCH_RV32
config ARCH_RV64
bool
default n
select LIBC_ARCH_ELF_64BIT if LIBC_ARCH_ELF
select LIBC_ARCH_ELF_64BIT if LIBC_ARCH_ELF && !ARCH_RV64ILP32
config ARCH_RV64ILP32
bool
depends on ARCH_RV64
default n
config ARCH_RV_ISA_M
bool
@ -547,6 +552,14 @@ config RISCV_TOOLCHAIN_CLANG
bool "LLVM Clang toolchain"
select ARCH_TOOLCHAIN_CLANG
config RISCV_TOOLCHAIN_GNU_RV64ILP32
bool "Generic GNU RV64ILP32 toolchain"
select ARCH_TOOLCHAIN_GNU
select ARCH_RV64ILP32
---help---
This option work with Ruyisdk toolchain (GCC 13 or newer)
configured for riscv64-unknown-elf.
endchoice # Toolchain Selection
config RISCV_SEMIHOSTING_HOSTFS

9
arch/risc-v/src/cmake/Toolchain.cmake
View File

@ -26,6 +26,7 @@ set(CMAKE_CXX_COMPILER_FORCED TRUE)
if(CONFIG_RISCV_TOOLCHAIN_GNU_RV32
OR CONFIG_RISCV_TOOLCHAIN_GNU_RV64
OR CONFIG_RISCV_TOOLCHAIN_GNU_RV64ILP32
OR CONFIG_RISCV_TOOLCHAIN_CLANG)
if(NOT CONFIG_RISCV_TOOLCHAIN)
set(CONFIG_RISCV_TOOLCHAIN GNU_RVG)
@ -184,7 +185,11 @@ if(CONFIG_ARCH_RV32)
add_link_options(-Wl,-melf32lriscv)
elseif(CONFIG_ARCH_RV64)
add_compile_options(-mcmodel=medany)
if(CONFIG_ARCH_RV64ILP32)
add_link_options(-Wl,-melf32lriscv)
else()
add_link_options(-Wl,-melf64lriscv)
endif()
endif()
if(CONFIG_DEBUG_OPT_UNUSED_SECTIONS)
@ -268,7 +273,11 @@ if(${CONFIG_RISCV_TOOLCHAIN} STREQUAL GNU_RVG)
set(LLVM_ARCHTYPE "riscv32")
elseif(CONFIG_ARCH_RV64)
set(ARCHTYPE "rv64")
if(CONFIG_ARCH_RV64ILP32)
set(ARCHABITYPE "ilp32")
else()
set(ARCHABITYPE "lp64")
endif()
set(LLVM_ARCHTYPE "riscv64")
endif()

8
arch/risc-v/src/common/Toolchain.defs
View File

@ -29,6 +29,8 @@
ifeq ($(filter y, $(CONFIG_RISCV_TOOLCHAIN_GNU_RV64)),y)
CONFIG_RISCV_TOOLCHAIN ?= GNU_RVG
else ifeq ($(filter y, $(CONFIG_RISCV_TOOLCHAIN_GNU_RV64ILP32)),y)
CONFIG_RISCV_TOOLCHAIN ?= GNU_RVG
else ifeq ($(filter y, $(CONFIG_RISCV_TOOLCHAIN_GNU_RV32)),y)
CONFIG_RISCV_TOOLCHAIN ?= GNU_RVG
else ifeq ($(filter y, $(CONFIG_RISCV_TOOLCHAIN_CLANG)),y)
@ -119,6 +121,8 @@ SHMODULEFLAGS = -Bsymbolic -G -Bdynamic --entry=__start
ifeq ($(CONFIG_ARCH_RV32),y)
LDFLAGS += -melf32lriscv
SHMODULEFLAGS += -melf32lriscv
else ifeq ($(CONFIG_ARCH_RV64ILP32),y)
LDFLAGS += -melf32lriscv
else
LDFLAGS += -melf64lriscv
endif
@ -231,7 +235,11 @@ ifeq ($(CONFIG_RISCV_TOOLCHAIN),GNU_RVG)
LLVM_ARCHTYPE := riscv32
else ifeq ($(CONFIG_ARCH_RV64),y)
ARCHTYPE = rv64
ifeq ($(CONFIG_ARCH_RV64ILP32),y)
ARCHABITYPE = ilp32
else
ARCHABITYPE = lp64
endif
LLVM_ARCHTYPE := riscv64
# https://www.sifive.com/blog/all-aboard-part-4-risc-v-code-models
ARCHCPUFLAGS = -mcmodel=medany