1 /* Internal interfaces for the GNU/Linux specific target code for gdbserver. 2 Copyright 2002, 2004 Free Software Foundation, Inc. 3 4 This file is part of GDB. 5 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. 10 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. 15 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., 59 Temple Place - Suite 330, 19 Boston, MA 02111-1307, USA. */ 20 21 /* 22 * $FreeBSD: stable/12/gnu/usr.bin/gdb/gdbserver/fbsd-low.h 157574 2006-04-06 22:24:01Z jmg $ 23 */ 24 25 typedef void (*regset_fill_func) (void *); 26 typedef void (*regset_store_func) (const void *); 27 enum regset_type { 28 GENERAL_REGS, 29 FP_REGS, 30 EXTENDED_REGS, 31 }; 32 33 struct regset_info 34 { 35 int get_request, set_request; 36 int size; 37 enum regset_type type; 38 regset_fill_func fill_function; 39 regset_store_func store_function; 40 }; 41 extern struct regset_info target_regsets[]; 42 43 struct fbsd_target_ops 44 { 45 int num_regs; 46 int *regmap; 47 int (*cannot_fetch_register) (int); 48 49 /* Returns 0 if we can store the register, 1 if we can not 50 store the register, and 2 if failure to store the register 51 is acceptable. */ 52 int (*cannot_store_register) (int); 53 CORE_ADDR (*get_pc) (void); 54 void (*set_pc) (CORE_ADDR newpc); 55 const char *breakpoint; 56 int breakpoint_len; 57 CORE_ADDR (*breakpoint_reinsert_addr) (void); 58 59 60 int decr_pc_after_break; 61 int (*breakpoint_at) (CORE_ADDR pc); 62 }; 63 64 extern struct fbsd_target_ops the_low_target; 65 66 #define get_process(inf) ((struct process_info *)(inf)) 67 #define get_thread_process(thr) (get_process (inferior_target_data (thr))) 68 #define get_process_thread(proc) ((struct thread_info *) \ 69 find_inferior_id (&all_threads, \ 70 get_process (proc)->tid)) 71 72 struct process_info 73 { 74 struct inferior_list_entry head; 75 int thread_known; 76 int lwpid; 77 int tid; 78 79 /* If this flag is set, the next SIGSTOP will be ignored (the process will 80 be immediately resumed). */ 81 int stop_expected; 82 83 /* If this flag is set, the process is known to be stopped right now (stop 84 event already received in a wait()). */ 85 int stopped; 86 87 /* If this flag is set, we have sent a SIGSTOP to this process and are 88 waiting for it to stop. */ 89 int sigstop_sent; 90 91 /* If this flag is set, STATUS_PENDING is a waitstatus that has not yet 92 been reported. */ 93 int status_pending_p; 94 int status_pending; 95 96 /* If this flag is set, the pending status is a (GDB-placed) breakpoint. */ 97 int pending_is_breakpoint; 98 CORE_ADDR pending_stop_pc; 99 100 /* If this is non-zero, it is a breakpoint to be reinserted at our next 101 stop (SIGTRAP stops only). */ 102 CORE_ADDR bp_reinsert; 103 104 /* If this flag is set, the last continue operation on this process 105 was a single-step. */ 106 int stepping; 107 108 /* If this is non-zero, it points to a chain of signals which need to 109 be delivered to this process. */ 110 struct pending_signals *pending_signals; 111 112 /* A link used when resuming. It is initialized from the resume request, 113 and then processed and cleared in fbsd_resume_one_process. */ 114 115 struct thread_resume *resume; 116 }; 117 118 extern struct inferior_list all_processes; 119 120 void fbsd_attach_lwp (int pid, int tid); 121 122 int thread_db_init (void); 123