| 1 | /* Base/prototype target for default child (native) targets. |
| 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_CHILD_H |
| 21 | #define INF_CHILD_H |
| 22 | |
| 23 | #include "target.h" |
| 24 | #include "process-stratum-target.h" |
| 25 | |
| 26 | /* A prototype child target. The client can override it with local |
| 27 | methods. */ |
| 28 | |
| 29 | class inf_child_target |
| 30 | : public memory_breakpoint_target<process_stratum_target> |
| 31 | { |
| 32 | public: |
| 33 | inf_child_target () = default; |
| 34 | ~inf_child_target () override = 0; |
| 35 | |
| 36 | const target_info &info () const override; |
| 37 | |
| 38 | void close () override; |
| 39 | |
| 40 | void disconnect (const char *, int) override; |
| 41 | |
| 42 | void fetch_registers (struct regcache *, int) override = 0; |
| 43 | void store_registers (struct regcache *, int) override = 0; |
| 44 | |
| 45 | void prepare_to_store (struct regcache *) override; |
| 46 | |
| 47 | bool supports_terminal_ours () override; |
| 48 | void terminal_init () override; |
| 49 | void terminal_inferior () override; |
| 50 | void terminal_save_inferior () override; |
| 51 | void terminal_ours_for_output () override; |
| 52 | void terminal_ours () override; |
| 53 | void terminal_info (const char *, int) override; |
| 54 | |
| 55 | void interrupt () override; |
| 56 | void pass_ctrlc () override; |
| 57 | |
| 58 | void post_startup_inferior (ptid_t) override; |
| 59 | |
| 60 | void mourn_inferior () override; |
| 61 | |
| 62 | bool can_run () override; |
| 63 | |
| 64 | bool can_create_inferior () override; |
| 65 | void create_inferior (const char *, const std::string &, |
| 66 | char **, int) override = 0; |
| 67 | |
| 68 | bool can_attach () override; |
| 69 | void attach (const char *, int) override = 0; |
| 70 | |
| 71 | void post_attach (int) override; |
| 72 | |
| 73 | char *pid_to_exec_file (int pid) override; |
| 74 | |
| 75 | int fileio_open (struct inferior *inf, const char *filename, |
| 76 | int flags, int mode, int warn_if_slow, |
| 77 | int *target_errno) override; |
| 78 | int fileio_pwrite (int fd, const gdb_byte *write_buf, int len, |
| 79 | ULONGEST offset, int *target_errno) override; |
| 80 | int fileio_pread (int fd, gdb_byte *read_buf, int len, |
| 81 | ULONGEST offset, int *target_errno) override; |
| 82 | int fileio_fstat (int fd, struct stat *sb, int *target_errno) override; |
| 83 | int fileio_close (int fd, int *target_errno) override; |
| 84 | int fileio_unlink (struct inferior *inf, |
| 85 | const char *filename, |
| 86 | int *target_errno) override; |
| 87 | gdb::optional<std::string> fileio_readlink (struct inferior *inf, |
| 88 | const char *filename, |
| 89 | int *target_errno) override; |
| 90 | bool use_agent (bool use) override; |
| 91 | |
| 92 | bool can_use_agent () override; |
| 93 | |
| 94 | protected: |
| 95 | /* Unpush the target if it wasn't explicitly open with "target native" |
| 96 | and there are no live inferiors left. Note: if calling this as a |
| 97 | result of a mourn or detach, the current inferior shall already |
| 98 | have its PID cleared, so it isn't counted as live. That's usually |
| 99 | done by calling either generic_mourn_inferior or |
| 100 | detach_inferior. */ |
| 101 | void maybe_unpush_target (); |
| 102 | }; |
| 103 | |
| 104 | /* Functions for helping to write a native target. */ |
| 105 | |
| 106 | /* This is for native targets which use a unix/POSIX-style waitstatus. */ |
| 107 | extern void store_waitstatus (struct target_waitstatus *, int); |
| 108 | |
| 109 | /* Register TARGET as native target and set it up to respond to the |
| 110 | "target native" command. */ |
| 111 | extern void add_inf_child_target (inf_child_target *target); |
| 112 | |
| 113 | /* target_open_ftype callback for inf-child targets. Used by targets |
| 114 | that want to register an alternative target_info object. Most |
| 115 | targets use add_inf_child_target instead. */ |
| 116 | extern void inf_child_open_target (const char *arg, int from_tty); |
| 117 | |
| 118 | #endif |