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, parse_file, c_generator
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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 | gen = c_generator.CGenerator()
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8 |
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9 | inc_map = {
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10 | "int8_t": "stdint.h",
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11 | "uint8_t": "stdint.h",
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12 | "int16_t": "stdint.h",
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13 | "uint16_t": "stdint.h",
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14 | "int32_t": "stdint.h",
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15 | "uint32_t": "stdint.h"
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16 | }
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17 |
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18 | with open("misc/c-files.txt", "r") as f:
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19 | for path in f:
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20 | path = path.rstrip()
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21 |
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22 | if path == "ram/wdfield.c": # breaks pycparser
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23 | continue
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24 |
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25 | stdout.write("reading {} \r".format(path))
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26 | stdout.flush()
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27 |
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28 | ast = parse_file(path, use_cpp = True, cpp_path = cross_gcc,
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29 | cpp_args = ["-E", "-I", "include"])
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30 | # ast.show()
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31 |
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32 | funs = {}
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33 | vars = {}
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34 | incs = set()
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35 |
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36 | for ext in ast.ext:
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37 | # assumes that includes come before .c files in c-files.txt, i.e.,
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38 | # that we've already seen the .h file, when its declarations are used
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39 | # by a .c file.
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40 |
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41 | if ext.coord.file == path and path[-2:] == ".h":
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42 | if type(ext) is c_ast.Decl and \
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43 | type(ext.type) is c_ast.Struct:
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44 | inc_map[ext.type.name] = path.split("/")[-1]
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45 | continue
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46 |
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47 | if type(ext) is c_ast.Decl and \
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48 | (type(ext.type) is c_ast.TypeDecl or \
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49 | type(ext.type) is c_ast.PtrDecl or \
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50 | type(ext.type) is c_ast.ArrayDecl):
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51 | decl = ext
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52 | map = vars
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53 |
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54 | elif type(ext) is c_ast.FuncDef:
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55 | decl = ext.decl
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56 | map = funs
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57 |
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58 | else:
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59 | continue
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60 |
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61 | if "extern" in decl.storage or \
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62 | "static" in decl.storage:
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63 | continue
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64 |
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65 | decl.storage = ["extern"]
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66 | decl.init = None
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67 |
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68 | toks = gen.visit(decl).split(" ")
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69 |
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70 | for tok in toks:
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71 | if tok in inc_map:
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72 | incs.add(inc_map[tok])
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73 |
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74 | alig = ""
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75 |
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76 | alig += toks[0] + "\t"
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77 | toks = toks[1:]
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78 |
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79 | if toks[0] == "struct":
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80 | if len(toks[1]) > 7:
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81 | raise Exception("identifier too long: {}".format(toks[1]))
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82 |
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83 | alig += toks[0] + "\t" + toks[1] + "\t"
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84 | toks = toks[2:]
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85 |
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86 | else:
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87 | alig += toks[0] + ("\t\t" if len(toks[0]) < 8 else "\t")
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88 | toks = toks[1:]
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89 |
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90 | map[decl.name] = alig + " ".join(toks) + ";"
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91 |
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92 | file = path.split("/")[-1]
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93 | glob = []
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94 |
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95 | if len(vars) > 0:
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96 | glob.append("/*")
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97 | glob.append(" =============================================================================")
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98 | glob.append("\t" + file + " -- global variables")
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99 | glob.append(" =============================================================================")
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100 | glob.append("*/")
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101 | glob.append("")
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102 |
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103 | for _, out in sorted(vars.items()):
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104 | glob.append(out)
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105 |
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106 | glob.append("")
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107 |
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108 | if len(funs) > 0:
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109 | glob.append("/*")
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110 | glob.append(" =============================================================================")
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111 | glob.append("\t" + file + " -- global functions")
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112 | glob.append(" =============================================================================")
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113 | glob.append("*/")
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114 | glob.append("")
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115 |
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116 | for _, out in sorted(funs.items()):
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117 | glob.append(out)
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118 |
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119 | glob.append("")
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120 |
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121 | if len(glob) == 0:
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122 | continue
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123 |
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124 | head = []
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125 | head.append("#pragma once")
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126 | head.append("")
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127 |
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128 | if len(incs) > 0:
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129 | for inc in sorted(incs):
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130 | head.append("#include \"{}\"".format(inc))
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131 |
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132 | head.append("")
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133 |
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134 | glob = head + glob
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135 |
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136 | with open(path[:-2] + ".x", "w") as f:
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137 | print("\n".join(glob), file = f)
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138 |
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139 | print("")
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