[e225e77] | 1 | #!/usr/bin/env python3
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| 2 |
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| 3 | from sys import stdout
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| 4 | from pycparser import c_ast, c_generator, parse_file
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| 5 |
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| 6 | cross_gcc = "/opt/cross-m68k/bin/m68k-none-elf-gcc"
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| 7 |
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| 8 | class Visitor(c_ast.NodeVisitor):
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| 9 | gen = c_generator.CGenerator()
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| 10 |
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| 11 | def __init__(self):
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| 12 | self.path = None
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| 13 |
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| 14 | self.calls = {}
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| 15 | self.knows = {}
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| 16 |
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| 17 | self.declares = {}
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| 18 | self.in_header = {}
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| 19 |
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| 20 | self.decl = {}
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| 21 |
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| 22 | self.max_decl = {}
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| 23 | self.max_head = {}
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| 24 |
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| 25 | self.fix_head = {}
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| 26 | self.fix_decl = {}
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| 27 |
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| 28 | def visit_FuncCall(self, node):
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| 29 | if node.coord.file != self.path:
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| 30 | return
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| 31 |
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| 32 | if type(node.name) is not c_ast.ID:
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| 33 | return
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| 34 |
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| 35 | if self.path not in self.calls:
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| 36 | self.calls[self.path] = set()
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| 37 |
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| 38 | self.calls[self.path].add(node.name.name)
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| 39 | self.generic_visit(node)
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| 40 |
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| 41 | def visit_path(self, path, ast):
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| 42 | self.path = path
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| 43 | self.visit(ast)
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| 44 | self.path = None
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| 45 |
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| 46 | for node in ast.ext:
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| 47 | if type(node) is not c_ast.FuncDef:
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| 48 | continue
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| 49 |
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| 50 | node.decl.storage = []
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| 51 | decl = self.gen.visit(node.decl)
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| 52 |
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| 53 | if node.decl.name in self.decl and \
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| 54 | self.decl[node.decl.name] != decl:
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| 55 | raise Exception("declaration mismatch: {} vs. {}". \
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| 56 | format(self.decl[node.decl.name], decl))
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| 57 |
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| 58 | self.decl[node.decl.name] = decl
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| 59 |
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| 60 | for node in ast.ext:
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| 61 | if type(node) is c_ast.Decl and \
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| 62 | type(node.type) is c_ast.FuncDecl:
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| 63 | decl = node
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| 64 |
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| 65 | elif type(node) is c_ast.FuncDef:
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| 66 | decl = node.decl
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| 67 |
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| 68 | else:
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| 69 | continue
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| 70 |
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| 71 | if path not in self.knows:
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| 72 | self.knows[path] = set()
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| 73 |
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| 74 | self.knows[path].add(decl.name)
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| 75 |
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| 76 | if decl.coord.file != path:
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| 77 | continue
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| 78 |
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| 79 | if type(node) is c_ast.Decl:
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| 80 | if path not in self.max_decl:
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| 81 | self.max_decl[path] = -1;
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| 82 |
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| 83 | if decl.coord.line > self.max_decl[path]:
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| 84 | self.max_decl[path] = decl.coord.line
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| 85 |
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| 86 | if path not in self.declares:
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| 87 | self.declares[path] = set()
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| 88 |
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| 89 | self.declares[path].add(decl.name)
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| 90 |
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| 91 | if path[-2:] == ".h":
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| 92 | if decl.name in self.in_header:
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| 93 | raise Exception("duplicate definition of {}".format(decl.name))
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| 94 |
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| 95 | self.in_header[decl.name] = path
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| 96 |
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| 97 | def fix(self):
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| 98 | for path, calls in sorted(self.calls.items()):
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| 99 | knows = self.knows[path]
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| 100 | needs = calls - knows
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| 101 |
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| 102 | for need in sorted(needs):
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| 103 | if need in self.in_header:
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| 104 | if path not in self.fix_head:
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| 105 | self.fix_head[path] = set()
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| 106 |
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| 107 | self.fix_head[path].add(self.in_header[need])
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| 108 |
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| 109 | else:
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| 110 | if path not in self.fix_decl:
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| 111 | self.fix_decl[path] = set()
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| 112 |
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| 113 | self.fix_decl[path].add(self.decl[need])
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| 114 |
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| 115 | no = 1
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| 116 |
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| 117 | with open(path, "r") as f:
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| 118 | for line in f:
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| 119 | if len(line) >= 8 and line[:8] == "#include":
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| 120 | self.max_head[path] = no
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| 121 |
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| 122 | no += 1
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| 123 |
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| 124 | for path, _ in sorted(self.calls.items()):
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| 125 | if path not in self.fix_head and path not in self.fix_decl:
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| 126 | continue
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| 127 |
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| 128 | max_head = self.max_head[path] if path in self.max_head else None
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| 129 | max_decl = self.max_decl[path] if path in self.max_decl else None
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| 130 |
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| 131 | if max_head is None:
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| 132 | max_head = max_decl
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| 133 |
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| 134 | if max_decl is None:
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| 135 | max_decl = max_head
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| 136 |
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| 137 | no = 1
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| 138 | out = []
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| 139 | extern = "extern "
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| 140 |
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| 141 | with open(path, "r") as f:
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| 142 | for line in f:
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| 143 | out.append(line)
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| 144 |
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| 145 | if "extern\t" in line:
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| 146 | extern = "extern\t"
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| 147 |
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| 148 | if no == max_head and path in self.fix_head:
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| 149 | out.append("\n")
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| 150 |
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| 151 | for head in sorted(self.fix_head[path]):
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| 152 | out.append("#include \"{}\"\n".format(head.split("/")[-1]))
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| 153 |
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| 154 | if no == max_decl and path in self.fix_decl:
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| 155 | out.append("\n")
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| 156 |
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| 157 | for decl in sorted(self.fix_decl[path]):
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| 158 | out.append(extern + decl + ";\n")
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| 159 |
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| 160 | no += 1
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| 161 |
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| 162 | with open(path, "w") as f:
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| 163 | for line in out:
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| 164 | f.write(line)
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| 165 |
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| 166 | vis = Visitor()
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| 167 |
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| 168 | with open("misc/c-files.txt", "r") as f:
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| 169 | for path in f:
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| 170 | path = path.rstrip()
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| 171 |
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| 172 | if path == "ram/wdfield.c": # breaks pycparser
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| 173 | continue
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| 174 |
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| 175 | stdout.write("parsing {} \r".format(path))
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| 176 | stdout.flush()
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| 177 |
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| 178 | ast = parse_file(path, use_cpp = True, cpp_path = cross_gcc,
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| 179 | cpp_args = ["-E", "-I", "include", "-include", "predef.h"])
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| 180 | # ast.show()
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| 181 |
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| 182 | vis.visit_path(path, ast)
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| 183 |
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| 184 | print("")
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| 185 |
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| 186 | vis.fix()
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