bc504a3117
The GNU Coding Standards say: "Please do not include any trademark acknowledgements in GNU software packages or documentation." gdb/ChangeLog: 2016-01-12 Pedro Alves <palves@redhat.com> Remove use of the registered trademark symbol throughout. gdb/gdbserver/ChangeLog: 2016-01-12 Pedro Alves <palves@redhat.com> Remove use of the registered trademark symbol throughout. gdb/doc/ChangeLog: 2016-01-12 Pedro Alves <palves@redhat.com> Remove use of the registered trademark symbol throughout.
125 lines
3.4 KiB
C
125 lines
3.4 KiB
C
/* Linux-dependent part of branch trace support for GDB, and GDBserver.
|
|
|
|
Copyright (C) 2013-2016 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"
|
|
#if HAVE_LINUX_PERF_EVENT_H
|
|
# include <linux/perf_event.h>
|
|
#endif
|
|
|
|
struct target_ops;
|
|
|
|
#if HAVE_LINUX_PERF_EVENT_H
|
|
/* A Linux perf event buffer. */
|
|
struct perf_event_buffer
|
|
{
|
|
/* The mapped memory. */
|
|
const uint8_t *mem;
|
|
|
|
/* The size of the mapped memory in bytes. */
|
|
size_t size;
|
|
|
|
/* A pointer to the data_head field for this buffer. */
|
|
volatile __u64 *data_head;
|
|
|
|
/* The data_head value from the last read. */
|
|
__u64 last_head;
|
|
};
|
|
|
|
/* Branch trace target information for BTS tracing. */
|
|
struct btrace_tinfo_bts
|
|
{
|
|
/* The Linux perf_event configuration for collecting the branch trace. */
|
|
struct perf_event_attr attr;
|
|
|
|
/* The perf event file. */
|
|
int file;
|
|
|
|
/* The perf event configuration page. */
|
|
volatile struct perf_event_mmap_page *header;
|
|
|
|
/* The BTS perf event buffer. */
|
|
struct perf_event_buffer bts;
|
|
};
|
|
|
|
/* Branch trace target information for Intel Processor Trace
|
|
tracing. */
|
|
struct btrace_tinfo_pt
|
|
{
|
|
/* The Linux perf_event configuration for collecting the branch trace. */
|
|
struct perf_event_attr attr;
|
|
|
|
/* The perf event file. */
|
|
int file;
|
|
|
|
/* The perf event configuration page. */
|
|
volatile struct perf_event_mmap_page *header;
|
|
|
|
/* The trace perf event buffer. */
|
|
struct perf_event_buffer pt;
|
|
};
|
|
#endif /* HAVE_LINUX_PERF_EVENT_H */
|
|
|
|
/* Branch trace target information per thread. */
|
|
struct btrace_target_info
|
|
{
|
|
/* The ptid of this thread. */
|
|
ptid_t ptid;
|
|
|
|
/* The obtained branch trace configuration. */
|
|
struct btrace_config conf;
|
|
|
|
#if HAVE_LINUX_PERF_EVENT_H
|
|
/* The branch tracing format specific information. */
|
|
union
|
|
{
|
|
/* CONF.FORMAT == BTRACE_FORMAT_BTS. */
|
|
struct btrace_tinfo_bts bts;
|
|
|
|
/* CONF.FORMAT == BTRACE_FORMAT_PT. */
|
|
struct btrace_tinfo_pt pt;
|
|
} variant;
|
|
#endif /* HAVE_LINUX_PERF_EVENT_H */
|
|
};
|
|
|
|
/* See to_supports_btrace in target.h. */
|
|
extern int linux_supports_btrace (struct target_ops *, enum btrace_format);
|
|
|
|
/* See to_enable_btrace in target.h. */
|
|
extern struct btrace_target_info *
|
|
linux_enable_btrace (ptid_t ptid, const struct btrace_config *conf);
|
|
|
|
/* 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 (struct btrace_data *btrace,
|
|
struct btrace_target_info *btinfo,
|
|
enum btrace_read_type type);
|
|
|
|
/* See to_btrace_conf in target.h. */
|
|
extern const struct btrace_config *
|
|
linux_btrace_conf (const struct btrace_target_info *);
|
|
|
|
#endif /* LINUX_BTRACE_H */
|