1 /* Low level child interface to ptrace. 2 3 Copyright (C) 2004-2020 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 47 void mourn_inferior () override; 48 49 bool thread_alive (ptid_t ptid) override; 50 51 std::string pid_to_str (ptid_t) override; 52 53 enum target_xfer_status xfer_partial (enum target_object object, 54 const char *annex, 55 gdb_byte *readbuf, 56 const gdb_byte *writebuf, 57 ULONGEST offset, ULONGEST len, 58 ULONGEST *xfered_len) override; 59 60 protected: 61 /* Cleanup the inferior after a successful ptrace detach. */ 62 void detach_success (inferior *inf); 63 }; 64 65 #ifndef __NetBSD__ 66 /* Return which PID to pass to ptrace in order to observe/control the 67 tracee identified by PTID. 68 69 Unlike most other Operating Systems, NetBSD tracks both pid and lwp 70 and avoids this function. */ 71 72 extern pid_t get_ptrace_pid (ptid_t); 73 #endif 74 75 #endif 76