77 lines
2.4 KiB
C
77 lines
2.4 KiB
C
/* Linux-dependent part of branch trace support for GDB, and GDBserver.
|
|
|
|
Copyright (C) 2013-2015 Free Software Foundation, Inc.
|
|
|
|
Contributed by Intel Corp. <markus.t.metzger@intel.com>
|
|
|
|
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 LINUX_BTRACE_H
|
|
#define LINUX_BTRACE_H
|
|
|
|
#include "btrace-common.h"
|
|
#include "vec.h"
|
|
#include <stdint.h>
|
|
|
|
#if HAVE_LINUX_PERF_EVENT_H
|
|
# include <linux/perf_event.h>
|
|
#endif
|
|
|
|
struct target_ops;
|
|
|
|
/* Branch trace target information per thread. */
|
|
struct btrace_target_info
|
|
{
|
|
#if HAVE_LINUX_PERF_EVENT_H
|
|
/* The Linux perf_event configuration for collecting the branch trace. */
|
|
struct perf_event_attr attr;
|
|
|
|
/* The ptid of this thread. */
|
|
ptid_t ptid;
|
|
|
|
/* The mmap configuration mapping the branch trace perf_event buffer.
|
|
|
|
file .. the file descriptor
|
|
buffer .. the mmapped memory buffer
|
|
size .. the buffer's size in pages without the configuration page
|
|
data_head .. the data head from the last read */
|
|
int file;
|
|
void *buffer;
|
|
size_t size;
|
|
unsigned long data_head;
|
|
#endif /* HAVE_LINUX_PERF_EVENT_H */
|
|
|
|
/* The size of a pointer in bits for this thread.
|
|
The information is used to identify kernel addresses in order to skip
|
|
records from/to kernel space. */
|
|
int ptr_bits;
|
|
};
|
|
|
|
/* See to_supports_btrace in target.h. */
|
|
extern int linux_supports_btrace (struct target_ops *);
|
|
|
|
/* See to_enable_btrace in target.h. */
|
|
extern struct btrace_target_info *linux_enable_btrace (ptid_t ptid);
|
|
|
|
/* See to_disable_btrace in target.h. */
|
|
extern enum btrace_error linux_disable_btrace (struct btrace_target_info *ti);
|
|
|
|
/* See to_read_btrace in target.h. */
|
|
extern enum btrace_error linux_read_btrace (VEC (btrace_block_s) **btrace,
|
|
struct btrace_target_info *btinfo,
|
|
enum btrace_read_type type);
|
|
|
|
#endif /* LINUX_BTRACE_H */
|