Files
Odin/misc/featuregen/featuregen.py
2025-02-27 22:45:34 +01:00

120 lines
3.6 KiB
Python

import subprocess
import tempfile
import os
import sys
archs = [
("amd64", "linux_amd64", "x86_64-pc-linux-gnu", [], []),
("i386", "linux_i386", "i386-pc-linux-gnu", [], []),
("arm32", "linux_arm32", "arm-linux-gnu", [], []),
("arm64", "linux_arm64", "aarch64-linux-elf", [], []),
("wasm32", "js_wasm32", "wasm32-js-js", [], []),
("wasm64p32", "js_wasm64p32", "wasm32-js-js", [], []),
("riscv64", "linux_riscv64", "riscv64-linux-gnu", [], []),
];
SEEKING_CPUS = 0
PARSING_CPUS = 1
PARSING_FEATURES = 2
with tempfile.NamedTemporaryFile(suffix=".odin", delete=True) as temp_file:
temp_file.write(b"package main\n")
for arch, target, triple, cpus, features in archs:
cmd = ["odin", "build", temp_file.name, "-file", "-use-single-module", "-build-mode:asm", "-out:temp", "-target-features:\"help\"", f"-target:\"{target}\""]
process = subprocess.Popen(cmd, stderr=subprocess.PIPE, text=True)
state = SEEKING_CPUS
for line in process.stderr:
if state == SEEKING_CPUS:
if line == "Available CPUs for this target:\n":
state = PARSING_CPUS
elif state == PARSING_CPUS:
if line == "Available features for this target:\n":
state = PARSING_FEATURES
continue
parts = line.split(" -", maxsplit=1)
if len(parts) < 2:
continue
cpu = parts[0].strip()
cpus.append(cpu)
elif state == PARSING_FEATURES:
if line == "\n" and len(features) > 0:
break
parts = line.split(" -", maxsplit=1)
if len(parts) < 2:
continue
feature = parts[0].strip()
features.append(feature)
process.wait()
if process.returncode != 0:
print(f"odin build returned with non-zero exit code {process.returncode}")
sys.exit(1)
os.remove("temp.S")
def print_default_features(triple, microarch):
cmd = ["./featuregen", triple, microarch]
process = subprocess.Popen(cmd, stdout=subprocess.PIPE, text=True)
first = True
for line in process.stdout:
print("" if first else ",", line.strip(), sep="", end="")
first = False
process.wait()
if process.returncode != 0:
print(f"featuregen returned with non-zero exit code {process.returncode}")
sys.exit(1)
print("// Generated with the featuregen script in `misc/featuregen`")
print("gb_global String target_microarch_list[TargetArch_COUNT] = {")
print("\t// TargetArch_Invalid:")
print('\tstr_lit(""),')
for arch, target, triple, cpus, features in archs:
print(f"\t// TargetArch_{arch}:")
cpus_str = ','.join(cpus)
print(f'\tstr_lit("{cpus_str}"),')
print("};")
print("")
print("// Generated with the featuregen script in `misc/featuregen`")
print("gb_global String target_features_list[TargetArch_COUNT] = {")
print("\t// TargetArch_Invalid:")
print('\tstr_lit(""),')
for arch, target, triple, cpus, features in archs:
print(f"\t// TargetArch_{arch}:")
features_str = ','.join(features)
print(f'\tstr_lit("{features_str}"),')
print("};")
print("")
print("// Generated with the featuregen script in `misc/featuregen`")
print("gb_global int target_microarch_counts[TargetArch_COUNT] = {")
print("\t// TargetArch_Invalid:")
print("\t0,")
for arch, target, triple, cpus, feature in archs:
print(f"\t// TargetArch_{arch}:")
print(f"\t{len(cpus)},")
print("};")
print("")
print("// Generated with the featuregen script in `misc/featuregen`")
print("gb_global MicroarchFeatureList microarch_features_list[] = {")
for arch, target, triple, cpus, features in archs:
print(f"\t// TargetArch_{arch}:")
for cpu in cpus:
print(f'\t{{ str_lit("{cpu}"), str_lit("', end="")
print_default_features(triple, cpu)
print('") },')
print("};")