mirror of
https://sourceware.org/git/binutils-gdb.git
synced 2024-11-21 01:12:32 +08:00
1d506c26d9
This commit is the result of the following actions:
- Running gdb/copyright.py to update all of the copyright headers to
include 2024,
- Manually updating a few files the copyright.py script told me to
update, these files had copyright headers embedded within the
file,
- Regenerating gdbsupport/Makefile.in to refresh it's copyright
date,
- Using grep to find other files that still mentioned 2023. If
these files were updated last year from 2022 to 2023 then I've
updated them this year to 2024.
I'm sure I've probably missed some dates. Feel free to fix them up as
you spot them.
90 lines
2.7 KiB
C
90 lines
2.7 KiB
C
/* Linux-dependent part of branch trace support for GDB, and GDBserver.
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Copyright (C) 2013-2024 Free Software Foundation, Inc.
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Contributed by Intel Corp. <markus.t.metzger@intel.com>
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This file is part of GDB.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>. */
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#ifndef NAT_LINUX_BTRACE_H
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#define NAT_LINUX_BTRACE_H
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#include "gdbsupport/btrace-common.h"
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#include "gdbsupport/gdb-checked-static-cast.h"
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#if HAVE_LINUX_PERF_EVENT_H
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# include <linux/perf_event.h>
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#endif
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struct target_ops;
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#if HAVE_LINUX_PERF_EVENT_H
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/* A Linux perf event buffer. */
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struct perf_event_buffer
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{
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/* The mapped memory. */
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const uint8_t *mem;
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/* The size of the mapped memory in bytes. */
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size_t size;
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/* A pointer to the data_head field for this buffer. */
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volatile __u64 *data_head;
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/* The data_head value from the last read. */
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__u64 last_head;
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};
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#endif /* HAVE_LINUX_PERF_EVENT_H */
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/* Branch trace target information per thread. */
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struct linux_btrace_target_info final : public btrace_target_info
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{
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linux_btrace_target_info (ptid_t ptid)
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: btrace_target_info (ptid)
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{}
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#if HAVE_LINUX_PERF_EVENT_H
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/* The Linux perf_event configuration for collecting the branch trace. */
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struct perf_event_attr attr {};
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/* The perf event file. */
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int file = -1;
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/* The perf event configuration page. */
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volatile struct perf_event_mmap_page *header = nullptr;
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/* The perf event buffer containing the trace data. */
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struct perf_event_buffer pev {};
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#endif /* HAVE_LINUX_PERF_EVENT_H */
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};
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/* See to_enable_btrace in target.h. */
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extern struct btrace_target_info *
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linux_enable_btrace (ptid_t ptid, const struct btrace_config *conf);
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/* See to_disable_btrace in target.h. */
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extern enum btrace_error linux_disable_btrace (struct btrace_target_info *ti);
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/* See to_read_btrace in target.h. */
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extern enum btrace_error linux_read_btrace (struct btrace_data *btrace,
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struct btrace_target_info *btinfo,
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enum btrace_read_type type);
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/* See to_btrace_conf in target.h. */
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extern const struct btrace_config *
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linux_btrace_conf (const struct btrace_target_info *);
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#endif /* NAT_LINUX_BTRACE_H */
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