binutils-gdb/gdb/nat/linux-nat.h
Tom Tromey d3a70e03cf Change iterate_over_lwps to take a gdb::function_view
This changes iterate_over_lwps to use a gdb::function_view.  This was
needed in order to make null_ptid and minus_one_ptid 'const'.

gdb/ChangeLog
2019-03-12  Tom Tromey  <tromey@adacore.com>

	* linux-nat.c (iterate_over_lwps): Update.
	(stop_callback): Remove parameter.
	(stop_wait_callback, detach_callback, resume_set_callback)
	(select_singlestep_lwp_callback, set_ignore_sigint)
	(status_callback, resumed_callback, resume_clear_callback)
	(kill_callback, kill_wait_callback, linux_nat_stop_lwp): Remove
	data parameter.
	(linux_nat_target::detach, linux_nat_target::resume)
	(linux_stop_and_wait_all_lwps, select_event_lwp)
	(linux_nat_filter_event, linux_nat_wait_1)
	(linux_nat_target::kill, linux_nat_target::stop)
	(linux_nat_target::stop): Update.
	(linux_nat_resume_callback): Change type.
	(resume_stopped_resumed_lwps, count_events_callback)
	(select_event_lwp_callback): Likewise.
	(linux_stop_lwp, linux_nat_stop_lwp): Update.
	* arm-linux-nat.c (struct update_registers_data): Remove.
	(update_registers_callback): Change type.
	(arm_linux_insert_hw_breakpoint1): Update.
	* nat/x86-linux-dregs.c (update_debug_registers_callback): Remove
	parameter.
	(x86_linux_dr_set_addr): Update.
	(x86_linux_dr_set_control): Update.
	* nat/linux-nat.h (iterate_over_lwps_ftype): Remove parameter.
	(iterate_over_lwps): Use gdb::function_view.
	* nat/aarch64-linux-hw-point.c (struct
	aarch64_dr_update_callback_param): Remove.
	(debug_reg_change_callback): Change type.
	(aarch64_notify_debug_reg_change): Update.
	* s390-linux-nat.c (s390_refresh_per_info): Update.

gdb/gdbserver/ChangeLog
2019-03-12  Tom Tromey  <tromey@adacore.com>

	* linux-low.c (iterate_over_lwps): Update.
2019-03-12 10:45:35 -06:00

95 lines
3.1 KiB
C

/* Code for native debugging support for GNU/Linux (LWP layer).
Copyright (C) 2000-2019 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 NAT_LINUX_NAT_H
#define NAT_LINUX_NAT_H
#include "common/function-view.h"
#include "target/waitstatus.h"
struct lwp_info;
struct arch_lwp_info;
/* This is the kernel's hard limit. Not to be confused with SIGRTMIN. */
#ifndef __SIGRTMIN
#define __SIGRTMIN 32
#endif
/* Unlike other extended result codes, WSTOPSIG (status) on
PTRACE_O_TRACESYSGOOD syscall events doesn't return SIGTRAP, but
instead SIGTRAP with bit 7 set. */
#define SYSCALL_SIGTRAP (SIGTRAP | 0x80)
/* Return the ptid of the current lightweight process. With NPTL
threads and LWPs map 1:1, so this is equivalent to returning the
ptid of the current thread. This function must be provided by
the client. */
extern ptid_t current_lwp_ptid (void);
/* Function type for the CALLBACK argument of iterate_over_lwps. */
typedef int (iterate_over_lwps_ftype) (struct lwp_info *lwp);
/* Iterate over all LWPs. Calls CALLBACK with its second argument set
to DATA for every LWP in the list. If CALLBACK returns nonzero for
a particular LWP, return a pointer to the structure describing that
LWP immediately. Otherwise return NULL. This function must be
provided by the client. */
extern struct lwp_info *iterate_over_lwps
(ptid_t filter,
gdb::function_view<iterate_over_lwps_ftype> callback);
/* Return the ptid of LWP. */
extern ptid_t ptid_of_lwp (struct lwp_info *lwp);
/* Set the architecture-specific data of LWP. This function must be
provided by the client. */
extern void lwp_set_arch_private_info (struct lwp_info *lwp,
struct arch_lwp_info *info);
/* Return the architecture-specific data of LWP. This function must
be provided by the client. */
extern struct arch_lwp_info *lwp_arch_private_info (struct lwp_info *lwp);
/* Return nonzero if LWP is stopped, zero otherwise. This function
must be provided by the client. */
extern int lwp_is_stopped (struct lwp_info *lwp);
/* Return the reason the LWP last stopped. This function must be
provided by the client. */
extern enum target_stop_reason lwp_stop_reason (struct lwp_info *lwp);
/* Cause LWP to stop. This function must be provided by the
client. */
extern void linux_stop_lwp (struct lwp_info *lwp);
/* Return nonzero if we are single-stepping this LWP at the ptrace
level. */
extern int lwp_is_stepping (struct lwp_info *lwp);
#endif /* NAT_LINUX_NAT_H */