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Rev 3023 Rev 3027
Line 34... Line 34...
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import os
 34 
import os
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import subprocess
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import subprocess
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 36 
 
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def usage(prname):
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def usage(prname):
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    "Print usage syntax"
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    "Print usage syntax"
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    print prname + " <OBJCOPY> <FORMAT> <OUTPUT_FORMAT> <ARCH> <ALIGNMENT>"
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    print prname + " <OBJCOPY> <FORMAT> <ARCH> <ALIGNMENT> <UINTPTR>"
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 40 
 
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def main():
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def main():
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    if (len(sys.argv) < 6):
 42 
    if (len(sys.argv) < 6):
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        usage(sys.argv[0])
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        usage(sys.argv[0])
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        return
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        return
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 45 
   
46 
    if (not sys.argv[5].isdigit()):
 46 
    if (not sys.argv[4].isdigit()):
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        print "<ALIGNMENT> must be a number"
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        print "<ALIGNMENT> must be a number"
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        return
 48 
        return
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 49 
   
50 
    templatename = "_link.ld.in"
 - 
 
51 
    workdir = os.getcwd()
 - 
 
52 
    objcopy = sys.argv[1]
 50 
    objcopy = sys.argv[1]
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    format = sys.argv[2]
 51 
    format = sys.argv[2]
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    output_format = sys.argv[3]
 52 
    arch = sys.argv[3]
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    arch = sys.argv[4]
 53 
    align = int(sys.argv[4], 0)
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    align = int(sys.argv[5], 0)
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    uintptr = sys.argv[5]
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 55 
   
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    workdir = os.getcwd()
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    link = file("_link.ld", "w")
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    header = file("_components.h", "w")
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    header = file("_components.h", "w")
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    data = file("_components.c", "w")
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    data = file("_components.c", "w")
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 60 
   
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    link.write("OUTPUT_FORMAT(\"" + output_format + "\")\n")
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    link.write("OUTPUT_ARCH(" + arch + ")\n")
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    link.write("ENTRY(start)\n\n")
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    link.write("SECTIONS {\n")
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 - 
 
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    size = os.path.getsize(templatename)
 - 
 
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    rd = 0
 - 
 
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    template = file(templatename, "r")
 - 
 
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 - 
 
71 
    while (rd < size):
 - 
 
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        buf = template.read(4096)
 - 
 
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        link.write(buf)
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        rd += len(buf)
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75 
   
 - 
 
76 
    template.close()
 - 
 
77 
   
 - 
 
78 
    link.write("\n")
 - 
 
79 
   
 - 
 
80 
    header.write("#ifndef ___COMPONENTS_H__\n")
 61 
    header.write("#ifndef ___COMPONENTS_H__\n")
81 
    header.write("#define ___COMPONENTS_H__\n\n")
 62 
    header.write("#define ___COMPONENTS_H__\n\n")
82 
   
 63 
   
83 
    data.write("#include \"_components.h\"\n\n")
 64 
    data.write("#include \"_components.h\"\n\n")
84 
    data.write("void init_components(component_t *components)\n")
 65 
    data.write("void init_components(component_t *components)\n")
85 
    data.write("{\n")
 66 
    data.write("{\n")
86 
   
 67 
   
87 
    cnt = 0
 68 
    cnt = 0
- 
 
 69 
    link = ""
88 
    for task in sys.argv[6:]:
 70 
    for task in sys.argv[6:]:
89 
        basename = os.path.basename(task)
 71 
        basename = os.path.basename(task)
90 
        plainname = os.path.splitext(basename)[0]
 72 
        plainname = os.path.splitext(basename)[0]
91 
        path = os.path.dirname(task)
 73 
        path = os.path.dirname(task)
92 
        object = plainname + ".o"
 74 
        object = plainname + ".o"
93 
        symbol = "_binary_" + basename.replace(".", "_")
 75 
        symbol = "_binary_" + basename.replace(".", "_")
94 
        macro = plainname.upper()
 76 
        macro = plainname.upper()
95 
       
 77 
       
96 
        print task + " -> " + object
 78 
        print task + " -> " + object
97 
       
 79 
       
- 
 
 80 
        if (align > 1):
98 
        link.write("\t\t. = ALIGN(" + ("%d" % align) + ");\n")
 81 
            link += "\t\t. = ALIGN(" + ("%d" % align) + ");\n"
- 
 
 82 
       
99 
        link.write("\t\t*(." + plainname + "_image);\n\n")
 83 
        link += "\t\t*(." + plainname + "_image);\n"
100 
       
 84 
       
101 
        header.write("extern int " + symbol + "_start;\n")
 85 
        header.write("extern int " + symbol + "_start;\n")
102 
        header.write("extern int " + symbol + "_end;\n\n")
 86 
        header.write("extern int " + symbol + "_end;\n\n")
103 
        header.write("#define " + macro + "_START ((void *) &" + symbol + "_start)\n")
 87 
        header.write("#define " + macro + "_START ((void *) &" + symbol + "_start)\n")
104 
        header.write("#define " + macro + "_END ((void *) &" + symbol + "_end)\n")
 88 
        header.write("#define " + macro + "_END ((void *) &" + symbol + "_end)\n")
105 
        header.write("#define " + macro + "_SIZE ((unsigned int) " + macro + "_END - (unsigned int) " + macro + "_START)\n\n")
 89 
        header.write("#define " + macro + "_SIZE ((" + uintptr + ") " + macro + "_END - (" + uintptr + ") " + macro + "_START)\n\n")
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 90 
       
107 
        data.write("\tcomponents[" + ("%d" % cnt) + "].name = \"" + plainname + "\";\n")
 91 
        data.write("\tcomponents[" + ("%d" % cnt) + "].name = \"" + plainname + "\";\n")
108 
        data.write("\tcomponents[" + ("%d" % cnt) + "].start = " + macro + "_START;\n")
 92 
        data.write("\tcomponents[" + ("%d" % cnt) + "].start = " + macro + "_START;\n")
109 
        data.write("\tcomponents[" + ("%d" % cnt) + "].end = " + macro + "_END;\n")
 93 
        data.write("\tcomponents[" + ("%d" % cnt) + "].end = " + macro + "_END;\n")
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        data.write("\tcomponents[" + ("%d" % cnt) + "].size = " + macro + "_SIZE;\n\n")
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        data.write("\tcomponents[" + ("%d" % cnt) + "].size = " + macro + "_SIZE;\n\n")
Line 116... Line 100...
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            "-B", arch,
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            "-B", arch,
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            "--rename-section", ".data=." + plainname + "_image",
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            "--rename-section", ".data=." + plainname + "_image",
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            basename, os.path.join(workdir, object)])
 102 
            basename, os.path.join(workdir, object)])
119 
        os.chdir(workdir)
 103 
        os.chdir(workdir)
120 
       
 104 
       
121 
        cnt = cnt + 1
 105 
        cnt += 1
122 
       
 106 
       
123 
    link.write("\t}\n")
 - 
 
124 
    link.write("}\n")
 - 
 
125 
   
 - 
 
126 
    header.write("#define COMPONENTS " + ("%d" % cnt) + "\n\n")
 107 
    header.write("#define COMPONENTS " + ("%d" % cnt) + "\n\n")
127 
    header.write("typedef struct {\n")
 108 
    header.write("typedef struct {\n")
128 
    header.write("\tchar *name;\n\n")
 109 
    header.write("\tchar *name;\n\n")
129 
    header.write("\tvoid *start;\n")
 110 
    header.write("\tvoid *start;\n")
130 
    header.write("\tvoid *end;\n")
 111 
    header.write("\tvoid *end;\n")
131 
    header.write("\tunsigned int size;\n")
 112 
    header.write("\t" + uintptr + " size;\n")
132 
    header.write("} component_t;\n\n")
 113 
    header.write("} component_t;\n\n")
133 
    header.write("extern void init_components(component_t *components);\n\n")
 114 
    header.write("extern void init_components(component_t *components);\n\n")
134 
    header.write("#endif\n")
 115 
    header.write("#endif\n")
135 
   
 116 
   
136 
    data.write("}\n")
 117 
    data.write("}\n")
137 
   
 118 
   
138 
    link.close()
 - 
 
139 
    header.close()
 119 
    header.close()
140 
    data.close()
 120 
    data.close()
- 
 
 121 
   
- 
 
 122 
    linkname = "_link.ld"
- 
 
 123 
    link_in = file(linkname + ".in", "r")
- 
 
 124 
    template = link_in.read(os.path.getsize(linkname + ".in"))
- 
 
 125 
    link_in.close()
- 
 
 126 
   
- 
 
 127 
    link_out = file(linkname, "w")
- 
 
 128 
    link_out.write(template.replace("[[COMPONENTS]]", link))
- 
 
 129 
    link_out.close()
141 
 
 130 
 
142 
if __name__ == '__main__':
 131 
if __name__ == '__main__':
143 
    main()
 132 
    main()