binutils-gdb/gdb/inf-ptrace.h
John Baldwin 94309df7aa Use LWP IDs with ptrace register requests on FreeBSD.
This allows gdb to fetch per-thread registers for multi-threaded FreeBSD
processes.

Export get_ptrace_pid() from inf-ptrace.c and use it to determine the PID
to pass to ptrace in pan-BSD native targets.  NetBSD and OpenBSD also accept
LWP IDs for ptrace requests to fetch per-thread state.

gdb/ChangeLog:

	* amd64bsd-nat.c (amd64bsd_fetch_inferior_registers): Use
	get_ptrace_pid.
	(amd64bsd_store_inferior_registers): Use get_ptrace_pid.
	(amd64bsd_dr_get): Use get_ptrace_pid.
	(amd64bsd_dr_set): Use get_ptrace_pid.
	* i386bsd-nat.c (i386bsd_fetch_inferior_registers): Use get_ptrace_pid.
	(i386bsd_store_inferior_registers): Use get_ptrace_pid.
	(i386bsd_dr_get): Use get_ptrace_pid.
	(i386bsd_dr_set): Use get_ptrace_pid.
	* inf-ptrace.c (get_ptrace_pid): Export.
	* inf-ptrace.h (get_ptrace_pid): Declare.
	* ppcfbsd-nat.c (ppcfbsd_fetch_inferior_registers): Use lwp id.
	(ppcfbsd_store_inferior_registers): Use lwp id.
2016-01-19 08:18:49 -08:00

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1.4 KiB
C

/* Low level child interface to ptrace.
Copyright (C) 2004-2016 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
/* Create a prototype ptrace target. The client can override it with
local methods. */
extern struct target_ops *inf_ptrace_target (void);
/* Create a "traditional" ptrace target. REGISTER_U_OFFSET should be
a function returning the offset within the user area where a
particular register is stored. */
extern struct target_ops *
inf_ptrace_trad_target (CORE_ADDR (*register_u_offset)
(struct gdbarch *, int, int));
/* Return which PID to pass to ptrace in order to observe/control the
tracee identified by PTID. */
extern pid_t get_ptrace_pid (ptid_t);
#endif