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/* Low level child interface to ptrace.
Copyright (C) 2004-2020 Free Software Foundation, Inc.
This file is part of GDB.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>. */
#ifndef INF_PTRACE_H
#define INF_PTRACE_H
#include "inf-child.h"
/* An abstract prototype ptrace target. The client can override it
with local methods. */
struct inf_ptrace_target : public inf_child_target
{
~inf_ptrace_target () override = 0;
void attach (const char *, int) override;
void detach (inferior *inf, int) override;
void resume (ptid_t, int, enum gdb_signal) override;
ptid_t wait (ptid_t, struct target_waitstatus *, int) override;
void files_info () override;
void kill () override;
void create_inferior (const char *, const std::string &,
char **, int) override;
#ifdef PT_GET_PROCESS_STATE
bool follow_fork (bool, bool) override;
int insert_fork_catchpoint (int) override;
int remove_fork_catchpoint (int) override;
void post_startup_inferior (ptid_t) override;
void post_attach (int) override;
#endif
void mourn_inferior () override;
bool thread_alive (ptid_t ptid) override;
std::string pid_to_str (ptid_t) override;
enum target_xfer_status xfer_partial (enum target_object object,
const char *annex,
gdb_byte *readbuf,
const gdb_byte *writebuf,
ULONGEST offset, ULONGEST len,
ULONGEST *xfered_len) override;
protected:
/* Cleanup the inferior after a successful ptrace detach. */
void detach_success (inferior *inf);
};
#ifndef __NetBSD__
/* Return which PID to pass to ptrace in order to observe/control the
tracee identified by PTID.
Unlike most other Operating Systems, NetBSD tracks both pid and lwp
and avoids this function. */
extern pid_t get_ptrace_pid (ptid_t);
#endif
#endif
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