1 /* Low level child interface to ptrace. 2 3 Copyright (C) 2004-2019 Free Software Foundation, Inc. 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 INF_PTRACE_H 21 #define INF_PTRACE_H 22 23 #include "inf-child.h" 24 25 /* An abstract prototype ptrace target. The client can override it 26 with local methods. */ 27 28 struct inf_ptrace_target : public inf_child_target 29 { 30 ~inf_ptrace_target () override = 0; 31 32 void attach (const char *, int) override; 33 34 void detach (inferior *inf, int) override; 35 36 void resume (ptid_t, int, enum gdb_signal) override; 37 38 ptid_t wait (ptid_t, struct target_waitstatus *, int) override; 39 40 void files_info () override; 41 42 void kill () override; 43 44 void create_inferior (const char *, const std::string &, 45 char **, int) override; 46 #ifdef PT_GET_PROCESS_STATE 47 int follow_fork (int, int) override; 48 49 int insert_fork_catchpoint (int) override; 50 51 int remove_fork_catchpoint (int) override; 52 53 void post_startup_inferior (ptid_t) override; 54 55 void post_attach (int) override; 56 #endif 57 58 void mourn_inferior () override; 59 60 bool thread_alive (ptid_t ptid) override; 61 62 const char *pid_to_str (ptid_t) override; 63 64 enum target_xfer_status xfer_partial (enum target_object object, 65 const char *annex, 66 gdb_byte *readbuf, 67 const gdb_byte *writebuf, 68 ULONGEST offset, ULONGEST len, 69 ULONGEST *xfered_len) override; 70 71 #if defined (PT_IO) && defined (PIOD_READ_AUXV) 72 int auxv_parse (gdb_byte **readptr, 73 gdb_byte *endptr, CORE_ADDR *typep, CORE_ADDR *valp) override; 74 #endif 75 76 protected: 77 /* Cleanup the inferior after a successful ptrace detach. */ 78 void detach_success (inferior *inf); 79 }; 80 81 /* Return which PID to pass to ptrace in order to observe/control the 82 tracee identified by PTID. */ 83 84 extern pid_t get_ptrace_pid (ptid_t); 85 86 #endif 87