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https://github.com/varun-r-mallya/Python-BPF.git
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41 lines
1.4 KiB
Python
41 lines
1.4 KiB
Python
import ast
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from llvmlite import ir
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from .license_pass import license_processing
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from .functions_pass import functions_processing
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from .constants_pass import constants_processing
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from .globals_pass import globals_processing
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def processor(source_code, filename, module):
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tree = ast.parse(source_code, filename)
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print(ast.dump(tree, indent=4))
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constants_processing(tree, module)
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license_processing(tree, module)
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globals_processing(tree, module)
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functions_processing(tree, module)
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def compile_to_ir(filename: str, output: str):
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with open(filename) as f:
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source = f.read()
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module = ir.Module(name=filename)
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module.data_layout = "e-m:e-p:64:64-i64:64-i128:128-n32:64-S128"
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module.triple = "bpf"
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processor(source, filename, module)
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wchar_size = module.add_metadata([ir.Constant(ir.IntType(32), 1),
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"wchar_size",
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ir.Constant(ir.IntType(32), 4)])
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frame_pointer = module.add_metadata([ir.Constant(ir.IntType(32), 7),
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"frame-pointer",
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ir.Constant(ir.IntType(32), 2)])
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module.add_named_metadata("llvm.module.flags", wchar_size)
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module.add_named_metadata("llvm.module.flags", frame_pointer)
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module.add_named_metadata("llvm.ident", ["llvmlite PythonBPF v0.0.0"])
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with open(output, "w") as f:
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f.write(str(module))
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return output
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