81 lines
2.8 KiB
Python
81 lines
2.8 KiB
Python
"""
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Support for debug info metadata.
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"""
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import functools
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import llvm.core
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from llvm import _dwarf
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int32_t = llvm.core.Type.int(32)
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bool_t = llvm.core.Type.int(1)
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i32 = functools.partial(llvm.core.Constant.int, int32_t)
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i1 = functools.partial(llvm.core.Constant.int, bool_t)
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class CompileUnitDescriptor(object):
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"""
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!0 = metadata !{
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i32, ;; Tag = 17 + LLVMDebugVersion (DW_TAG_compile_unit)
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i32, ;; Unused field.
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i32, ;; DWARF language identifier (ex. DW_LANG_C89)
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metadata, ;; Source file name
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metadata, ;; Source file directory (includes trailing slash)
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metadata ;; Producer (ex. "4.0.1 LLVM (LLVM research group)")
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i1, ;; True if this is a main compile unit.
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i1, ;; True if this is optimized.
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metadata, ;; Flags
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i32 ;; Runtime version
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metadata ;; List of enums types
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metadata ;; List of retained types
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metadata ;; List of subprograms
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metadata ;; List of global variables
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}
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"""
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def __init__(self, langid, source_filename, source_filedir,
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producer, is_main=False, is_optimized=False,
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compile_flags=None, runtime_version=0, enum_types=None,
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retained_types=None, subprograms=None, global_vars=None):
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self.langid = langid
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self.source_filename = source_filename
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self.source_filedir = source_filedir
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self.producer = producer
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self.is_main = is_main
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self.is_optimized = is_optimized
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self.compile_flags = compile_flags
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self.runtime_version = runtime_version
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self.enum_types = enum_types
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self.retained_types = retained_types
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self.subprograms = subprograms
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self.global_vars = global_vars
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def build_metadata(self, llvm_module):
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md = functools.partial(llvm.core.MetaData.get, llvm_module)
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mstr = functools.partial(llvm.core.MetaDataString.get, llvm_module)
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operands = [
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i32(_dwarf.DW_TAG_compile_unit +
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_dwarf.LLVMDebugVersion), # tag
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i32(0), # unused
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i32(self.langid), # Language identifier
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mstr(self.source_filename),
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mstr(self.source_filedir),
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mstr(self.producer),
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i1(self.is_main),
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i1(self.is_optimized),
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mstr(self.compile_flags or ""),
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md(self.enum_types or []),
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md(self.retained_types or []),
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md(self.subprograms or []),
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md(self.global_vars or []),
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]
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node = llvm.core.MetaData.get(llvm_module, operands)
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llvm.core.MetaData.add_named_operand(llvm_module, "dbg", node)
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print "printing metadata compile unit..."
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print node
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print "---- done ----"
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return node
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