| 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 | std::string 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 |