binutils-gdb/gdb/gdbserver/inferiors.h
Simon Marchi f27866ba9c Make process_info::syscalls_to_catch an std::vector
This patch makes the syscalls_to_catch field of process_info an
std::vector<int>.  The process_info structure must now be
newed/deleted.

In handle_extended_wait, the code that handles exec events destroys the
existing process_info and creates a new one.  It moves the content of
syscalls_to_catch from the old to the new vector.  I used std::move for
that (through an intermediary variable), which should have the same
behavior as the old code.

gdb/gdbserver/ChangeLog:

	* inferiors.h (struct process_info): Add constructor, initialize
	fields..
	<syscalls_to_catch>: Change type to std::vector<int>.
	* inferiors.c (add_process): Allocate process_info with new.
	(remove_process): Free process_info with delete.
	* linux-low.c (handle_extended_wait): Adjust.
	(gdb_catching_syscalls_p, gdb_catch_this_syscall_p): Adjust.
	* server.c (handle_general_set): Adjust.
2017-11-17 13:03:34 -05:00

161 lines
4.3 KiB
C++

/* Inferior process information for the remote server for GDB.
Copyright (C) 1993-2017 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 INFERIORS_H
#define INFERIORS_H
#include "gdb_vecs.h"
#include <list>
struct thread_info;
struct regcache;
struct target_desc;
struct sym_cache;
struct breakpoint;
struct raw_breakpoint;
struct fast_tracepoint_jump;
struct process_info_private;
struct process_info
{
process_info (int pid_, int attached_)
: pid (pid_), attached (attached_)
{}
/* This process' pid. */
int pid;
/* Nonzero if this child process was attached rather than
spawned. */
int attached;
/* True if GDB asked us to detach from this process, but we remained
attached anyway. */
int gdb_detached = 0;
/* The symbol cache. */
struct sym_cache *symbol_cache = NULL;
/* The list of memory breakpoints. */
struct breakpoint *breakpoints = NULL;
/* The list of raw memory breakpoints. */
struct raw_breakpoint *raw_breakpoints = NULL;
/* The list of installed fast tracepoints. */
struct fast_tracepoint_jump *fast_tracepoint_jumps = NULL;
/* The list of syscalls to report, or just a single element, ANY_SYSCALL,
for unfiltered syscall reporting. */
std::vector<int> syscalls_to_catch;
const struct target_desc *tdesc = NULL;
/* Private target data. */
struct process_info_private *priv = NULL;
};
/* Get the pid of PROC. */
static inline int
pid_of (const process_info *proc)
{
return proc->pid;
}
/* Return a pointer to the process that corresponds to the current
thread (current_thread). It is an error to call this if there is
no current thread selected. */
struct process_info *current_process (void);
struct process_info *get_thread_process (const struct thread_info *);
extern std::list<process_info *> all_processes;
/* Invoke FUNC for each process. */
template <typename Func>
static void
for_each_process (Func func)
{
std::list<process_info *>::iterator next, cur = all_processes.begin ();
while (cur != all_processes.end ())
{
next = cur;
next++;
func (*cur);
cur = next;
}
}
/* Find the first process for which FUNC returns true. Return NULL if no
process satisfying FUNC is found. */
template <typename Func>
static process_info *
find_process (Func func)
{
std::list<process_info *>::iterator next, cur = all_processes.begin ();
while (cur != all_processes.end ())
{
next = cur;
next++;
if (func (*cur))
return *cur;
cur = next;
}
return NULL;
}
extern struct thread_info *current_thread;
/* Return the first process in the processes list. */
struct process_info *get_first_process (void);
struct process_info *add_process (int pid, int attached);
void remove_process (struct process_info *process);
struct process_info *find_process_pid (int pid);
int have_started_inferiors_p (void);
int have_attached_inferiors_p (void);
void clear_inferiors (void);
thread_info *find_inferior (std::list<thread_info *> *thread_list,
int (*func) (thread_info *, void *), void *arg);
thread_info *find_inferior_id (std::list<thread_info *> *thread_list,
ptid_t id);
thread_info *find_inferior_in_random (std::list<thread_info *> *thread_list,
int (*func) (thread_info *, void *),
void *arg);
void for_each_inferior (std::list<thread_info *> *thread_list,
void (*action) (thread_info *));
void for_each_inferior_with_data (std::list<thread_info *> *thread_list,
void (*action) (thread_info *, void *),
void *data);
void *thread_target_data (struct thread_info *);
struct regcache *thread_regcache_data (struct thread_info *);
void set_thread_regcache_data (struct thread_info *, struct regcache *);
#endif /* INFERIORS_H */