1 /* Target-dependent code for GNU/Linux, architecture independent.
3 Copyright (C) 2009 Free Software Foundation, Inc.
5 This file is part of GDB.
7 This program is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 3 of the License, or
10 (at your option) any later version.
12 This program is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with this program. If not, see <http://www.gnu.org/licenses/>. */
22 #include "linux-tdep.h"
24 /* This function is suitable for architectures that don't
25 extend/override the standard siginfo structure. */
28 linux_get_siginfo_type (struct gdbarch *gdbarch)
30 struct type *int_type, *uint_type, *long_type, *void_ptr_type;
31 struct type *uid_type, *pid_type;
32 struct type *sigval_type, *clock_type;
33 struct type *siginfo_type, *sifields_type;
36 int_type = arch_integer_type (gdbarch, gdbarch_int_bit (gdbarch),
38 uint_type = arch_integer_type (gdbarch, gdbarch_int_bit (gdbarch),
40 long_type = arch_integer_type (gdbarch, gdbarch_long_bit (gdbarch),
42 void_ptr_type = lookup_pointer_type (builtin_type (gdbarch)->builtin_void);
45 sigval_type = arch_composite_type (gdbarch, NULL, TYPE_CODE_UNION);
46 TYPE_NAME (sigval_type) = xstrdup ("sigval_t");
47 append_composite_type_field (sigval_type, "sival_int", int_type);
48 append_composite_type_field (sigval_type, "sival_ptr", void_ptr_type);
51 pid_type = arch_type (gdbarch, TYPE_CODE_TYPEDEF, TYPE_LENGTH (int_type),
53 TYPE_TARGET_TYPE (pid_type) = int_type;
54 TYPE_TARGET_STUB (pid_type) = 1;
57 uid_type = arch_type (gdbarch, TYPE_CODE_TYPEDEF, TYPE_LENGTH (uint_type),
59 TYPE_TARGET_TYPE (uid_type) = uint_type;
60 TYPE_TARGET_STUB (uid_type) = 1;
63 clock_type = arch_type (gdbarch, TYPE_CODE_TYPEDEF, TYPE_LENGTH (long_type),
64 xstrdup ("__clock_t"));
65 TYPE_TARGET_TYPE (clock_type) = long_type;
66 TYPE_TARGET_STUB (clock_type) = 1;
69 sifields_type = arch_composite_type (gdbarch, NULL, TYPE_CODE_UNION);
72 const int si_max_size = 128;
74 int size_of_int = gdbarch_int_bit (gdbarch) / HOST_CHAR_BIT;
77 if (gdbarch_ptr_bit (gdbarch) == 64)
78 si_pad_size = (si_max_size / size_of_int) - 4;
80 si_pad_size = (si_max_size / size_of_int) - 3;
81 append_composite_type_field (sifields_type, "_pad",
82 init_vector_type (int_type, si_pad_size));
86 type = arch_composite_type (gdbarch, NULL, TYPE_CODE_STRUCT);
87 append_composite_type_field (type, "si_pid", pid_type);
88 append_composite_type_field (type, "si_uid", uid_type);
89 append_composite_type_field (sifields_type, "_kill", type);
92 type = arch_composite_type (gdbarch, NULL, TYPE_CODE_STRUCT);
93 append_composite_type_field (type, "si_tid", int_type);
94 append_composite_type_field (type, "si_overrun", int_type);
95 append_composite_type_field (type, "si_sigval", sigval_type);
96 append_composite_type_field (sifields_type, "_timer", type);
99 type = arch_composite_type (gdbarch, NULL, TYPE_CODE_STRUCT);
100 append_composite_type_field (type, "si_pid", pid_type);
101 append_composite_type_field (type, "si_uid", uid_type);
102 append_composite_type_field (type, "si_sigval", sigval_type);
103 append_composite_type_field (sifields_type, "_rt", type);
106 type = arch_composite_type (gdbarch, NULL, TYPE_CODE_STRUCT);
107 append_composite_type_field (type, "si_pid", pid_type);
108 append_composite_type_field (type, "si_uid", uid_type);
109 append_composite_type_field (type, "si_status", int_type);
110 append_composite_type_field (type, "si_utime", clock_type);
111 append_composite_type_field (type, "si_stime", clock_type);
112 append_composite_type_field (sifields_type, "_sigchld", type);
115 type = arch_composite_type (gdbarch, NULL, TYPE_CODE_STRUCT);
116 append_composite_type_field (type, "si_addr", void_ptr_type);
117 append_composite_type_field (sifields_type, "_sigfault", type);
120 type = arch_composite_type (gdbarch, NULL, TYPE_CODE_STRUCT);
121 append_composite_type_field (type, "si_band", long_type);
122 append_composite_type_field (type, "si_fd", int_type);
123 append_composite_type_field (sifields_type, "_sigpoll", type);
126 siginfo_type = arch_composite_type (gdbarch, NULL, TYPE_CODE_STRUCT);
127 TYPE_NAME (siginfo_type) = xstrdup ("siginfo");
128 append_composite_type_field (siginfo_type, "si_signo", int_type);
129 append_composite_type_field (siginfo_type, "si_errno", int_type);
130 append_composite_type_field (siginfo_type, "si_code", int_type);
131 append_composite_type_field_aligned (siginfo_type,
132 "_sifields", sifields_type,
133 TYPE_LENGTH (long_type));