diff options
| author | Akif Ejaz <[email protected]> | 2026-02-16 17:15:13 +0500 |
|---|---|---|
| committer | Akif Ejaz <[email protected]> | 2026-02-16 17:15:13 +0500 |
| commit | 757db54d6d10edc655eee9cfe02ecd4d93be5fed (patch) | |
| tree | 7f24c611a56c57328dafed7f81edf64e250f911f /cmake | |
| parent | c4ad279b85fcf836c0b42d3e140fc32f0554e7b5 (diff) | |
Add RISC-V32 arch. port layer
This update adapts the ThreadX low-level kernel routines
for RV32, including:
- startup and initialization logic
- context save/restore implementations
- interrupt control and scheduler entry
- thread stack build and system return paths
- timer interrupt handling
- made it complient as per new risc-v64/gnu
& threadx style
- added reademe for risc-v32/gnu port
These changes provide full low-level support needed to run
ThreadX on RISC-V32 targets.
Signed-off-by: Akif Ejaz <[email protected]>
Diffstat (limited to 'cmake')
| -rw-r--r-- | cmake/riscv32-unknown-elf.cmake | 29 | ||||
| -rw-r--r-- | cmake/riscv32_gnu.cmake | 12 |
2 files changed, 41 insertions, 0 deletions
diff --git a/cmake/riscv32-unknown-elf.cmake b/cmake/riscv32-unknown-elf.cmake new file mode 100644 index 00000000..cfd9f7ea --- /dev/null +++ b/cmake/riscv32-unknown-elf.cmake @@ -0,0 +1,29 @@ +# Toolchain settings +set(CMAKE_C_COMPILER riscv32-unknown-elf-gcc) +set(CMAKE_CXX_COMPILER riscv32-unknown-elf-g++) +set(AS riscv32-unknown-elf-as) +set(AR riscv32-unknown-elf-ar) +set(OBJCOPY riscv32-unknown-elf-objcopy) +set(OBJDUMP riscv32-unknown-elf-objdump) +set(SIZE riscv32-unknown-elf-size) + +set(CMAKE_FIND_ROOT_PATH_MODE_PROGRAM NEVER) +set(CMAKE_FIND_ROOT_PATH_MODE_LIBRARY ONLY) +set(CMAKE_FIND_ROOT_PATH_MODE_INCLUDE ONLY) +set(CMAKE_FIND_ROOT_PATH_MODE_PACKAGE ONLY) + +# this makes the test compiles use static library option so that we don't need to pre-set linker flags and scripts +set(CMAKE_TRY_COMPILE_TARGET_TYPE STATIC_LIBRARY) + +set(CMAKE_C_FLAGS "${CFLAGS}" CACHE INTERNAL "c compiler flags") +set(CMAKE_CXX_FLAGS "${CXXFLAGS}" CACHE INTERNAL "cxx compiler flags") +set(CMAKE_ASM_FLAGS "${ASFLAGS} -D__ASSEMBLER__ -D__riscv_float_abi_single" CACHE INTERNAL "asm compiler flags") +set(CMAKE_EXE_LINKER_FLAGS "${LDFLAGS}" CACHE INTERNAL "exe link flags") + +SET(CMAKE_C_FLAGS_DEBUG "-Og -g -ggdb3" CACHE INTERNAL "c debug compiler flags") +SET(CMAKE_CXX_FLAGS_DEBUG "-Og -g -ggdb3" CACHE INTERNAL "cxx debug compiler flags") +SET(CMAKE_ASM_FLAGS_DEBUG "-g -ggdb3" CACHE INTERNAL "asm debug compiler flags") + +SET(CMAKE_C_FLAGS_RELEASE "-O3" CACHE INTERNAL "c release compiler flags") +SET(CMAKE_CXX_FLAGS_RELEASE "-O3" CACHE INTERNAL "cxx release compiler flags") +SET(CMAKE_ASM_FLAGS_RELEASE "" CACHE INTERNAL "asm release compiler flags") diff --git a/cmake/riscv32_gnu.cmake b/cmake/riscv32_gnu.cmake new file mode 100644 index 00000000..617b1276 --- /dev/null +++ b/cmake/riscv32_gnu.cmake @@ -0,0 +1,12 @@ +# Name of the target +set(CMAKE_SYSTEM_NAME Generic) +set(CMAKE_SYSTEM_PROCESSOR risc-v32) + +set(THREADX_ARCH "risc-v32") +set(THREADX_TOOLCHAIN "gnu") +set(ARCH_FLAGS "-g -march=rv32gc -mabi=ilp32d -mcmodel=medany") +set(CFLAGS "${ARCH_FLAGS}") +set(ASFLAGS "${ARCH_FLAGS}") +set(LDFLAGS "${ARCH_FLAGS}") + +include(${CMAKE_CURRENT_LIST_DIR}/riscv32-unknown-elf.cmake) |