1 /* Internal interfaces for the GNU/Linux specific target code for gdbserver.
2 Copyright (C) 2002, 2004, 2005, 2007 Free Software Foundation, Inc.
4 This file is part of GDB.
6 This program is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 2 of the License, or
9 (at your option) any later version.
11 This program is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with this program; if not, write to the Free Software
18 Foundation, Inc., 51 Franklin Street, Fifth Floor,
19 Boston, MA 02110-1301, USA. */
21 #ifdef HAVE_THREAD_DB_H
22 #include <thread_db.h>
25 #ifdef HAVE_LINUX_REGSETS
26 typedef void (*regset_fill_func) (void *);
27 typedef void (*regset_store_func) (const void *);
36 int get_request, set_request;
38 enum regset_type type;
39 regset_fill_func fill_function;
40 regset_store_func store_function;
42 extern struct regset_info target_regsets[];
45 struct linux_target_ops
49 int (*cannot_fetch_register) (int);
51 /* Returns 0 if we can store the register, 1 if we can not
52 store the register, and 2 if failure to store the register
54 int (*cannot_store_register) (int);
55 CORE_ADDR (*get_pc) (void);
56 void (*set_pc) (CORE_ADDR newpc);
57 const unsigned char *breakpoint;
59 CORE_ADDR (*breakpoint_reinsert_addr) (void);
62 int decr_pc_after_break;
63 int (*breakpoint_at) (CORE_ADDR pc);
65 /* Watchpoint related functions. See target.h for comments. */
66 int (*insert_watchpoint) (char type, CORE_ADDR addr, int len);
67 int (*remove_watchpoint) (char type, CORE_ADDR addr, int len);
68 int (*stopped_by_watchpoint) (void);
69 CORE_ADDR (*stopped_data_address) (void);
71 /* Whether to left-pad registers for PEEKUSR/POKEUSR if they are smaller
76 extern struct linux_target_ops the_low_target;
78 #define get_process(inf) ((struct process_info *)(inf))
79 #define get_thread_process(thr) (get_process (inferior_target_data (thr)))
80 #define get_process_thread(proc) ((struct thread_info *) \
81 find_inferior_id (&all_threads, \
82 get_process (proc)->tid))
86 struct inferior_list_entry head;
91 /* If this flag is set, the next SIGSTOP will be ignored (the process will
92 be immediately resumed). */
95 /* If this flag is set, the process is known to be stopped right now (stop
96 event already received in a wait()). */
99 /* When stopped is set, the last wait status recorded for this process. */
102 /* If this flag is set, we have sent a SIGSTOP to this process and are
103 waiting for it to stop. */
106 /* If this flag is set, STATUS_PENDING is a waitstatus that has not yet
108 int status_pending_p;
111 /* If this flag is set, the pending status is a (GDB-placed) breakpoint. */
112 int pending_is_breakpoint;
113 CORE_ADDR pending_stop_pc;
115 /* If this is non-zero, it is a breakpoint to be reinserted at our next
116 stop (SIGTRAP stops only). */
117 CORE_ADDR bp_reinsert;
119 /* If this flag is set, the last continue operation on this process
120 was a single-step. */
123 /* If this is non-zero, it points to a chain of signals which need to
124 be delivered to this process. */
125 struct pending_signals *pending_signals;
127 /* A link used when resuming. It is initialized from the resume request,
128 and then processed and cleared in linux_resume_one_process. */
130 struct thread_resume *resume;
132 #ifdef HAVE_THREAD_DB_H
133 /* The thread handle, used for e.g. TLS access. */
138 extern struct inferior_list all_processes;
140 void linux_attach_lwp (unsigned long pid, unsigned long tid);
142 int thread_db_init (void);
143 int thread_db_get_tls_address (struct thread_info *thread, CORE_ADDR offset,
144 CORE_ADDR load_module, CORE_ADDR *address);