diff options
Diffstat (limited to 'scripts')
| -rwxr-xr-x | scripts/march-to-cpu-opt | 144 | ||||
| -rwxr-xr-x | scripts/wrapper/qemu/riscv64-unknown-linux-gnu-run | 2 |
2 files changed, 145 insertions, 1 deletions
diff --git a/scripts/march-to-cpu-opt b/scripts/march-to-cpu-opt new file mode 100755 index 0000000..44511ea --- /dev/null +++ b/scripts/march-to-cpu-opt @@ -0,0 +1,144 @@ +#!/usr/bin/python3 + +import argparse +import sys + +EXT_OPTS = { + "zba": "zba=true", + "zbb": "zbb=true", + "zbc": "zbc=true", + "zbs": "zbs=true", + "v": "v=true", + "zve32f": "Zve32f=true", + "zve64f": "Zve64f=true", + "zfh": "Zfh=true", + "zfhmin": "Zfhmin=true", +} + +SUPPORTTED_EXTS = "iemafdcbvph" +MC_EXT_PREFIX = "zsx" + +def parse_opt(argv): + parser = argparse.ArgumentParser() + parser.add_argument('-march', '--with-arch', type=str, dest='march') + parser.add_argument('-selftest', action='store_true') + opt = parser.parse_args() + return opt + +def parse_mc_ext(ext_str, idx): + end_idx = ext_str[idx+1:].find('_') + if end_idx == -1: + end_idx = len(ext_str) + else: + end_idx = end_idx + idx + 1 + major = 0 + minor = 0 + version_begin_idx = end_idx + if ext_str[end_idx-1].isdigit(): + # This ext is come with version. + v_idx = end_idx - 1 + while (ext_str[v_idx].isdigit()) and v_idx > idx: + v_idx -= 1 + major = int(ext_str[v_idx+1:end_idx]) + version_begin_idx = v_idx+1 + if (ext_str[v_idx] == 'p'): + minor = major + major_v_idx = v_idx - 1 + while (ext_str[major_v_idx].isdigit()) and major_v_idx > idx: + major_v_idx -= 1 + major = int(ext_str[major_v_idx+1:v_idx]) + version_begin_idx = major_v_idx+1 + + return end_idx, ext_str[idx:version_begin_idx], major, minor + +def parse_version(ext_str, idx): + major = 2 + minor = 0 + strlen = len(ext_str) + end_idx = idx + 1 + if idx+1 < strlen and ext_str[idx+1].isdigit(): + v_idx = idx + 1 + while v_idx < strlen and (ext_str[v_idx].isdigit()): + v_idx += 1 + major = int(ext_str[idx+1:v_idx]) + end_idx = v_idx + if (ext_str[v_idx] == 'p'): + minor_v_idx = v_idx + 1 + while minor_v_idx < strlen and (ext_str[minor_v_idx].isdigit()): + minor_v_idx += 1 + minor = int(ext_str[v_idx+1:minor_v_idx]) + end_idx = minor_v_idx + + return end_idx, ext_str[idx], major, minor + +def parse_march(march): + if len(march) < 5: + return None + march = march.replace("rv64g", "rv64imafd").replace("rv32g", "rv32imafd") + if march[0:5] not in ['rv64i', 'rv32i', 'rv32e']: + print (march[0:5]) + return None + + ext_str = march[4:] + idx = 0 + extstrlens = len(ext_str) + exts = dict() + while idx < extstrlens: + if ext_str[idx] in SUPPORTTED_EXTS: + idx, ext_name, major, minor = parse_version(ext_str, idx) + elif ext_str[idx] in MC_EXT_PREFIX: + idx, ext_name, major, minor = parse_mc_ext(ext_str, idx) + elif ext_str[idx] == '_': + idx = idx + 1 + continue + else: + raise Exception("Unrecognized ext : `%s`, %s" % + (ext_str[idx], ext_str)) + exts[ext_name] = (major, minor) + return exts + +def get_vlen(ext_dict): + vlen = 0 + for ext in ext_dict.keys(): + if ext == 'v': + vlen = max(vlen, 128) + elif (ext.startswith('zvl') and ext[-1] == 'b'): + zvlen = int(arch[3:-1]) + vlen = max(vlen, zvlen) + elif ext.startswith("zve"): + zvelen = int(arch[3:-1]) + vlen = max(vlen, zvelen) + return vlen + +def conver_arch_to_qemu_cpu_opt(march): + if len(march) < 5: + return None + + ext_dict = parse_march(march) + + cpu_opt = [] + cpu_opt.append(march[0:4]) # rv32 or rv64 + + vlen = get_vlen(ext_dict) + + if vlen != 0: + cpu_opt.append("vlen=%d" % vlen) + + for ext in ext_dict.keys(): + if ext in EXT_OPTS: + cpu_opt.append(EXT_OPTS[ext]) + return ",".join(cpu_opt) + +def selftest(): + print(parse_march("rv64gc")) + +def main(argv): + opt = parse_opt(argv) + if opt.selftest: + selftest() + return 0 + cpu_opt = conver_arch_to_qemu_cpu_opt(opt.march) + print (cpu_opt) + +if __name__ == '__main__': + sys.exit(main(sys.argv)) diff --git a/scripts/wrapper/qemu/riscv64-unknown-linux-gnu-run b/scripts/wrapper/qemu/riscv64-unknown-linux-gnu-run index 386c917..078360e 100755 --- a/scripts/wrapper/qemu/riscv64-unknown-linux-gnu-run +++ b/scripts/wrapper/qemu/riscv64-unknown-linux-gnu-run @@ -12,4 +12,4 @@ done xlen="$(readelf -h $1 | grep 'Class' | cut -d: -f 2 | xargs echo | sed 's/^ELF//')" -qemu-riscv$xlen -r 5.10 "${qemu_args[@]}" -L ${RISC_V_SYSROOT} "$@" +QEMU_CPU=${QEMU_CPU} qemu-riscv$xlen -r 5.10 "${qemu_args[@]}" -L ${RISC_V_SYSROOT} "$@" |