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-rwxr-xr-xscripts/march-to-cpu-opt127
1 files changed, 95 insertions, 32 deletions
diff --git a/scripts/march-to-cpu-opt b/scripts/march-to-cpu-opt
index 493ab13..f6777f4 100755
--- a/scripts/march-to-cpu-opt
+++ b/scripts/march-to-cpu-opt
@@ -7,7 +7,7 @@ import elftools.elf.elffile
import elftools.elf.enums
import elftools.elf.sections
-EXT_OPTS = {
+QEMU_EXT_OPTS = {
"zba": "zba=true",
"zbb": "zbb=true",
"zbc": "zbc=true",
@@ -16,12 +16,34 @@ EXT_OPTS = {
"zve32f": "Zve32f=true",
"zve64f": "Zve64f=true",
"zfh": "Zfh=true",
- "zfhmin": "Zfhmin=true",
+ "zfhmin": "Zfhmin=true",
"zhinx": "zhinx=true",
"zfinx": "zfinx=true",
"zdinx": "zdinx=true",
}
+SPIKE_EXT_NOT_ALLOWED = [
+ "zve32x",
+ "zve32f",
+ "zve64x",
+ "zve64f",
+ "zve64d",
+ "zvl32b",
+ "zvl64b",
+ "zvl128b",
+ "zvl256b",
+ "zvl512b",
+ "zvl1024b",
+ "zvl2048b",
+ "zvl4096b",
+]
+
+CPU_OPTIONS = {
+ "xlen": "",
+ "vlen": "",
+ "extensions": [],
+}
+
SUPPORTTED_EXTS = "iemafdcbvph"
MC_EXT_PREFIX = "zsx"
@@ -29,8 +51,13 @@ def parse_opt(argv):
parser = argparse.ArgumentParser()
parser.add_argument('-march', '--with-arch', type=str, dest='march')
parser.add_argument('-selftest', action='store_true')
- parser.add_argument('--get-riscv-tag', type=str)
- parser.add_argument('--get-elf-class', type=str)
+ parser.add_argument('--elf-file-path', type=str)
+ parser.add_argument('--print-xlen', action='store_true', default=False)
+ parser.add_argument('--print-vlen', action='store_true', default=False)
+ parser.add_argument('--print-qemu-cpu', action='store_true', default=False)
+ parser.add_argument('--print-spike-isa', action='store_true', default=False)
+ parser.add_argument('--print-spike-varch', action='store_true',
+ default=False)
opt = parser.parse_args()
return opt
@@ -119,31 +146,47 @@ def get_vlen(ext_dict):
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)
+def print_qemu_cpu():
+ cpu_options = []
+ cpu_options.append("rv{0}".format(CPU_OPTIONS['xlen']))
- if vlen != 0:
- cpu_opt.append("vlen=%d" % vlen)
+ if CPU_OPTIONS['vlen']:
+ cpu_options.append("vlen={0}".format(CPU_OPTIONS['vlen']))
disable_all_fd = False
- for ext in ext_dict.keys():
- if ext in EXT_OPTS:
- cpu_opt.append(EXT_OPTS[ext])
+ for ext in CPU_OPTIONS['extensions']:
+ if ext in QEMU_EXT_OPTS:
+ cpu_options.append(QEMU_EXT_OPTS[ext])
+
if ext in ['zhinx', 'zfinx', 'zdinx']:
disable_all_fd = True
+
if disable_all_fd:
- cpu_opt.append("f=false")
- cpu_opt.append("d=false")
- return ",".join(cpu_opt)
+ cpu_options.append("f=false")
+ cpu_options.append("d=false")
+
+ return ",".join(cpu_options)
+
+def print_spike_isa():
+ cpu_options = []
+ cpu_options.append("rv{0}".format(CPU_OPTIONS['xlen']))
+
+ for ext in CPU_OPTIONS['extensions']:
+ if ext not in SPIKE_EXT_NOT_ALLOWED:
+ normalized_ext_name = ext
+
+ if len(ext) > 1:
+ normalized_ext_name = "_{0}".format(normalized_ext_name)
+ cpu_options.append(normalized_ext_name)
+
+ return "".join(cpu_options)
+
+def print_spike_varch():
+ if not CPU_OPTIONS['vlen']:
+ return ""
+
+ return "vlen:{0},elen:{1}".format(CPU_OPTIONS['vlen'], CPU_OPTIONS['xlen'])
class TestArchStringParse(unittest.TestCase):
def _test(self, arch, expected_arch_list, expected_vlen=0):
@@ -168,7 +211,7 @@ def open_elf(path):
raise Exception("%s is not ELF file!" % path)
return elffile
-def read_elf_class(path):
+def get_xlen(path):
elffile = open_elf(path)
return elffile.elfclass
@@ -204,21 +247,41 @@ def read_arch_attr (path):
return val
raise Exception("Not found ELF attribute in %s?" % path)
+def parse_elf_file(elf_file_path):
+ extensions = []
+ extension_dict = parse_march(read_arch_attr(elf_file_path))
+
+ for extension in extension_dict.keys():
+ extensions.append(extension)
+
+ CPU_OPTIONS["extensions"] = extensions
+ CPU_OPTIONS["vlen"] = get_vlen(extension_dict)
+ CPU_OPTIONS["xlen"] = get_xlen(elf_file_path)
+
def main(argv):
opt = parse_opt(argv)
if opt.selftest:
selftest()
return 0
- if (opt.get_elf_class):
- elf_class = read_elf_class (opt.get_elf_class)
- print (elf_class)
+
+ parse_elf_file(opt.elf_file_path)
+
+ if opt.print_xlen:
+ print(CPU_OPTIONS['xlen'])
return
- if (opt.get_riscv_tag):
- march = read_arch_attr (opt.get_riscv_tag)
- else:
- march = opt.march
- cpu_opt = conver_arch_to_qemu_cpu_opt(march)
- print (cpu_opt)
+
+ if opt.print_vlen:
+ print(CPU_OPTIONS['vlen'])
+ return
+
+ if opt.print_qemu_cpu:
+ print(print_qemu_cpu())
+
+ if opt.print_spike_isa:
+ print(print_spike_isa())
+
+ if opt.print_spike_varch:
+ print(print_spike_varch())
if __name__ == '__main__':
sys.exit(main(sys.argv))