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96d7229d LM |
1 | /* Code for native debugging support for GNU/Linux (LWP layer). |
2 | ||
32d0add0 | 3 | Copyright (C) 2000-2015 Free Software Foundation, Inc. |
96d7229d LM |
4 | |
5 | This file is part of GDB. | |
6 | ||
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. | |
11 | ||
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. | |
16 | ||
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/>. */ | |
19 | ||
20 | #ifndef LINUX_NAT_H | |
21 | #define LINUX_NAT_H | |
22 | ||
6d4ee8c6 | 23 | struct lwp_info; |
4b134ca1 | 24 | struct arch_lwp_info; |
6d4ee8c6 | 25 | |
96d7229d LM |
26 | /* Unlike other extended result codes, WSTOPSIG (status) on |
27 | PTRACE_O_TRACESYSGOOD syscall events doesn't return SIGTRAP, but | |
28 | instead SIGTRAP with bit 7 set. */ | |
29 | #define SYSCALL_SIGTRAP (SIGTRAP | 0x80) | |
30 | ||
7b669087 GB |
31 | /* Return the ptid of the current lightweight process. With NPTL |
32 | threads and LWPs map 1:1, so this is equivalent to returning the | |
33 | ptid of the current thread. This function must be provided by | |
34 | the client. */ | |
35 | ||
36 | extern ptid_t current_lwp_ptid (void); | |
37 | ||
6d4ee8c6 GB |
38 | /* Function type for the CALLBACK argument of iterate_over_lwps. */ |
39 | typedef int (iterate_over_lwps_ftype) (struct lwp_info *lwp, void *arg); | |
40 | ||
41 | /* Iterate over all LWPs. Calls CALLBACK with its second argument set | |
42 | to DATA for every LWP in the list. If CALLBACK returns nonzero for | |
43 | a particular LWP, return a pointer to the structure describing that | |
44 | LWP immediately. Otherwise return NULL. This function must be | |
45 | provided by the client. */ | |
46 | ||
47 | extern struct lwp_info *iterate_over_lwps (ptid_t filter, | |
48 | iterate_over_lwps_ftype callback, | |
49 | void *data); | |
50 | ||
cff068da GB |
51 | /* Return the ptid of LWP. */ |
52 | ||
53 | extern ptid_t ptid_of_lwp (struct lwp_info *lwp); | |
54 | ||
4b134ca1 GB |
55 | /* Set the architecture-specific data of LWP. This function must be |
56 | provided by the client. */ | |
57 | ||
58 | extern void lwp_set_arch_private_info (struct lwp_info *lwp, | |
59 | struct arch_lwp_info *info); | |
60 | ||
61 | /* Return the architecture-specific data of LWP. This function must | |
62 | be provided by the client. */ | |
63 | ||
64 | extern struct arch_lwp_info *lwp_arch_private_info (struct lwp_info *lwp); | |
65 | ||
cff068da GB |
66 | /* Return nonzero if LWP is stopped, zero otherwise. This function |
67 | must be provided by the client. */ | |
68 | ||
69 | extern int lwp_is_stopped (struct lwp_info *lwp); | |
70 | ||
71 | /* Return the reason the LWP last stopped. This function must be | |
72 | provided by the client. */ | |
73 | ||
74 | extern enum target_stop_reason lwp_stop_reason (struct lwp_info *lwp); | |
75 | ||
b2f7c7e8 GB |
76 | /* Cause LWP to stop. This function must be provided by the |
77 | client. */ | |
78 | ||
79 | extern void linux_stop_lwp (struct lwp_info *lwp); | |
80 | ||
96d7229d | 81 | #endif /* LINUX_NAT_H */ |