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1 | # Copyright (C) 2011-2013 Free Software Foundation, Inc. |
2 | ||
3 | # This program is free software; you can redistribute it and/or modify | |
4 | # it under the terms of the GNU General Public License as published by | |
5 | # the Free Software Foundation; either version 3 of the License, or | |
6 | # (at your option) any later version. | |
7 | # | |
8 | # This program is distributed in the hope that it will be useful, | |
9 | # but WITHOUT ANY WARRANTY; without even the implied warranty of | |
10 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
11 | # GNU General Public License for more details. | |
12 | # | |
13 | # You should have received a copy of the GNU General Public License | |
14 | # along with this program. If not, see <http://www.gnu.org/licenses/>. | |
15 | ||
16 | """Configure GDB using the ELinOS environment.""" | |
17 | ||
18 | import os | |
19 | import glob | |
20 | import gdb | |
21 | ||
22 | ||
23 | def warn(msg): | |
24 | print "warning: %s" % msg | |
25 | ||
26 | ||
27 | def get_elinos_environment(): | |
28 | """Return the ELinOS environment. | |
29 | ||
30 | If the ELinOS environment is properly set up, return a dictionary | |
31 | which contains: | |
32 | * The path to the ELinOS project at key 'project'; | |
33 | * The path to the ELinOS CDK at key 'cdk'; | |
34 | * The ELinOS target name at key 'target' (Eg. 'i486-linux'); | |
35 | * A list of Xenomai install prefixes (which could be empty, if | |
36 | the ELinOS project does not include Xenomai) at key 'xenomai'. | |
37 | ||
38 | If one of these cannot be found, it is then assumed that the ELinOS | |
39 | environment is not properly set up. Return None in such a case, | |
40 | and print a warning. | |
41 | """ | |
42 | result = {} | |
43 | for key in ("project", "cdk", "target"): | |
44 | var = "ELINOS_" + key.upper() | |
45 | if var in os.environ: | |
46 | result[key] = os.environ[var] | |
47 | else: | |
48 | warn("%s not set" % var) | |
49 | return None | |
50 | ||
51 | result["xenomai"] = glob.glob(result["project"] + "/xenomai-[0-9.]*") | |
52 | return result | |
53 | ||
54 | ||
55 | def elinos_init(): | |
56 | """Initialize debugger environment for ELinOS. | |
57 | ||
58 | Let the debugger know where to find the ELinOS libraries on host. This | |
59 | assumes that an ELinOS environment is properly set up. If not, abort | |
60 | with a warning. | |
61 | """ | |
62 | elinos_env = get_elinos_environment() | |
63 | ||
64 | if elinos_env is None: | |
65 | warn("ELinOS system libraries will not be loaded") | |
66 | else: | |
67 | solib_prefix = "%s/%s" % (elinos_env["cdk"], elinos_env["target"]) | |
68 | ||
69 | solib_dirs = [] | |
70 | for dir in elinos_env['xenomai']: | |
71 | solib_dirs += ["%s/%s" % (dir, "xenomai-build/usr/realtime/lib")] | |
72 | solib_dirs += ["%s/%s" % (solib_prefix, "lib")] | |
73 | ||
74 | gdb.execute("set solib-absolute-prefix %s" % solib_prefix) | |
75 | gdb.execute("set solib-search-path %s" % ":".join(solib_dirs)) | |
76 | ||
77 | ||
78 | if __name__ == "__main__": | |
79 | elinos_init() |