source: mainline/kernel/tools/genmap.py@ c0ea739

lfn serial ticket/834-toolchain-update topic/msim-upgrade topic/simplify-dev-export
Last change on this file since c0ea739 was a35b458, checked in by Jiří Zárevúcky <zarevucky.jiri@…>, 7 years ago

style: Remove trailing whitespace on _all_ lines, including empty ones, for particular file types.

Command used: tools/srepl '\s\+$' '' -- *.c *.h *.py *.sh *.s *.S *.ag

Currently, whitespace on empty lines is very inconsistent.
There are two basic choices: Either remove the whitespace, or keep empty lines
indented to the level of surrounding code. The former is AFAICT more common,
and also much easier to do automatically.

Alternatively, we could write script for automatic indentation, and use that
instead. However, if such a script exists, it's possible to use the indented
style locally, by having the editor apply relevant conversions on load/save,
without affecting remote repository. IMO, it makes more sense to adopt
the simpler rule.

  • Property mode set to 100755
File size: 3.6 KB
Line 
1#!/usr/bin/env python
2#
3# Copyright (c) 2006 Ondrej Palkovsky
4# All rights reserved.
5#
6# Redistribution and use in source and binary forms, with or without
7# modification, are permitted provided that the following conditions
8# are met:
9#
10# - Redistributions of source code must retain the above copyright
11# notice, this list of conditions and the following disclaimer.
12# - Redistributions in binary form must reproduce the above copyright
13# notice, this list of conditions and the following disclaimer in the
14# documentation and/or other materials provided with the distribution.
15# - The name of the author may not be used to endorse or promote products
16# derived from this software without specific prior written permission.
17#
18# THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
19# IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
20# OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
21# IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
22# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
23# NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
24# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
25# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
26# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
27# THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
28#
29
30"""
31Create binary symbol map out of linker map file
32"""
33
34import sys
35import struct
36import re
37
38MAXSTRING = 63
39symtabfmt = "<Q%ds" % (MAXSTRING + 1)
40
41funcline = re.compile(r'([0-9a-f]+)\s+[lg]\s+.\s+\.text\s+([0-9a-f]+)\s+(.*)$')
42bssline = re.compile(r'([0-9a-f]+)\s+[lg]\s+[a-zA-Z]\s+\.bss\s+([0-9a-f]+)\s+(.*)$')
43dataline = re.compile(r'([0-9a-f]+)\s+[lg]\s+[a-zA-Z]\s+\.data\s+([0-9a-f]+)\s+(.*)$')
44fileexp = re.compile(r'([^\s]+):\s+file format')
45startfile = re.compile(r'\.(text|bss|data)\s+(0x[0-9a-f]+)\s+0x[0-9a-f]+\s+(.*)$')
46
47def read_obdump(inp):
48 "Parse input"
49
50 funcs = {}
51 data = {}
52 bss = {}
53 fname = ''
54
55 for line in inp:
56 line = line.strip()
57 res = funcline.match(line)
58 if (res):
59 funcs.setdefault(fname, []).append((int(res.group(1), 16), res.group(3)))
60 continue
61
62 res = bssline.match(line)
63 if (res):
64 start = int(res.group(1), 16)
65 end = int(res.group(2), 16)
66 if (end):
67 bss.setdefault(fname, []).append((start, res.group(3)))
68
69 res = dataline.match(line)
70 if (res):
71 start = int(res.group(1), 16)
72 end = int(res.group(2), 16)
73 if (end):
74 data.setdefault(fname, []).append((start, res.group(3)))
75
76 res = fileexp.match(line)
77 if (res):
78 fname = res.group(1)
79 continue
80
81 return {'text' : funcs, 'bss' : bss, 'data' : data}
82
83def generate(kmapf, obmapf, out):
84 "Generate output file"
85
86 obdump = read_obdump(obmapf)
87
88 def key_sorter(x):
89 return x[0]
90
91 for line in kmapf:
92 line = line.strip()
93 res = startfile.match(line)
94
95 if ((res) and (res.group(3) in obdump[res.group(1)])):
96 offset = int(res.group(2), 16)
97 fname = res.group(3)
98 symbols = obdump[res.group(1)][fname]
99 symbols.sort(key = key_sorter)
100 for addr, symbol in symbols:
101 value = fname + ':' + symbol
102 value_bytes = value.encode('ascii')
103 data = struct.pack(symtabfmt, addr + offset, value_bytes[:MAXSTRING])
104 out.write(data)
105
106 out.write(struct.pack(symtabfmt, 0, b''))
107
108def main():
109 if (len(sys.argv) != 4):
110 print("Usage: %s <kernel.map> <nm dump> <output.bin>" % sys.argv[0])
111 return 1
112
113 kmapf = open(sys.argv[1], 'r')
114 obmapf = open(sys.argv[2], 'r')
115 out = open(sys.argv[3], 'wb')
116
117 generate(kmapf, obmapf, out)
118
119 kmapf.close()
120 obmapf.close()
121 out.close()
122
123if __name__ == '__main__':
124 sys.exit(main())
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