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adds rv64gc.cmake

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This commit is contained in:
Hongyu Liu 2025-04-11 15:37:34 +02:00
parent 38246a05ce
commit db3a2d68d6
2 changed files with 61 additions and 1 deletions
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59
cmake/rv64gc.cmake Normal file
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@ -0,0 +1,59 @@
# Look for GCC in path
# https://xpack.github.io/riscv-none-embed-gcc/
FIND_FILE( RISCV_XPACK_GCC_COMPILER_EXE "riscv-none-embed-gcc.exe" PATHS ENV INCLUDE)
FIND_FILE( RISCV_XPACK_GCC_COMPILER "riscv-none-embed-gcc" PATHS ENV INCLUDE)
# New versions of xpack
FIND_FILE( RISCV_XPACK_NEW_GCC_COMPILER_EXE "riscv-none-elf-gcc.exe" PATHS ENV INCLUDE)
FIND_FILE( RISCV_XPACK_NEW_GCC_COMPILER "riscv-none-elf-gcc" PATHS ENV INCLUDE)
# Look for RISC-V github GCC
# https://github.com/riscv/riscv-gnu-toolchain
FIND_FILE( RISCV_XPACK_GCC_COMPILER_EXT "riscv64-unknown-elf-gcc.exe" PATHS ENV INCLUDE)
FIND_FILE( RISCV_XPACK_GCC_COMPILER "riscv64-unknown-elf-gcc" PATHS ENV INCLUDE)
# Select which is found
if (EXISTS ${RISCV_XPACK_NEW_GCC_COMPILER})
set( RISCV_GCC_COMPILER ${RISCV_XPACK_NEW_GCC_COMPILER})
elseif (EXISTS ${RISCV_XPACK_GCC_NEW_COMPILER_EXE})
set( RISCV_GCC_COMPILER ${RISCV_XPACK_NEW_GCC_COMPILER_EXE})
elseif (EXISTS ${RISCV_XPACK_GCC_COMPILER})
set( RISCV_GCC_COMPILER ${RISCV_XPACK_GCC_COMPILER})
elseif (EXISTS ${RISCV_XPACK_GCC_COMPILER_EXE})
set( RISCV_GCC_COMPILER ${RISCV_XPACK_GCC_COMPILER_EXE})
elseif (EXISTS ${RISCV_GITHUB_GCC_COMPILER})
set( RISCV_GCC_COMPILER ${RISCV_GITHUB_GCC_COMPILER})
elseif (EXISTS ${RISCV_GITHUB_GCC_COMPILER_EXE})
set( RISCV_GCC_COMPILER ${RISCV_GITHUB_GCC_COMPILER_EXE})
else()
message(FATAL_ERROR "RISC-V GCC not found. ${RISCV_GITHUB_GCC_COMPILER} ${RISCV_XPACK_GCC_COMPILER} ${RISCV_GITHUB_GCC_COMPILER_EXE} ${RISCV_XPACK_GCC_COMPILER_EXE}")
endif()
get_filename_component(RISCV_TOOLCHAIN_BIN_PATH ${RISCV_GCC_COMPILER} DIRECTORY)
get_filename_component(RISCV_TOOLCHAIN_BIN_GCC ${RISCV_GCC_COMPILER} NAME_WE)
get_filename_component(RISCV_TOOLCHAIN_BIN_EXT ${RISCV_GCC_COMPILER} EXT)
STRING(REGEX REPLACE "\-gcc" "-" CROSS_COMPILE ${RISCV_TOOLCHAIN_BIN_GCC})
# The Generic system name is used for embedded targets (targets without OS)
set(CMAKE_SYSTEM_NAME Generic )
set(CMAKE_EXECUTABLE_SUFFIX_C ".elf")
set(RISCV_ARCH rv64gc )
set(RISCV_ABI lp64d)
set(CMAKE_ASM_COMPILER {CROSS_COMPILE}gcc )
set(CMAKE_AR ${CROSS_COMPILE}ar)
set(CMAKE_ASM_COMPILER ${CROSS_COMPILE}gcc)
set(CMAKE_C_COMPILER ${CROSS_COMPILE}gcc)
set(CMAKE_CXX_COMPILER ${CROSS_COMPILE}g++)
set( CMAKE_OBJCOPY ${RISCV_TOOLCHAIN_BIN_PATH}/${CROSS_COMPILE}objcopy
CACHE FILEPATH "The toolchain objcopy command " FORCE )
set( CMAKE_OBJDUMP ${RISCV_TOOLCHAIN_BIN_PATH}/${CROSS_COMPILE}objdump
CACHE FILEPATH "The toolchain objdump command " FORCE )
set( CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -march=${RISCV_ARCH} -mabi=${RISCV_ABI} -mcmodel=medany" )
set( CMAKE_C_FLAGS "${CMAKE_C_FLAGS}" CACHE STRING "" )
set( CMAKE_CXX_FLAGS "${CMAKE_C_FLAGS}" CACHE STRING "" )
set( CMAKE_ASM_FLAGS "${CMAKE_C_FLAGS}" CACHE STRING "" )

3
libwrap/sys/_exit.c
View File

@ -25,7 +25,8 @@ void __wrap_exit(int code) {
write(STDERR_FILENO, message, sizeof(message) - 1); write(STDERR_FILENO, message, sizeof(message) - 1);
write_hex(STDERR_FILENO, code); write_hex(STDERR_FILENO, code);
write(STDERR_FILENO, "\n", 1); write(STDERR_FILENO, "\n", 1);
tohost = (code << 1) + 1; write(STDERR_FILENO, "\n", 1);
// tohost = (code << 1) + 1; // here used to stop simulation
write(STDERR_FILENO, "\x04", 1); write(STDERR_FILENO, "\x04", 1);
for (;;) for (;;)