043c357797
Add a format argument to the various supports_btrace functions to check for support of a specific btrace format. This is to prepare for a new format. Removed two redundant calls. The check will be made in the subsequent btrace_enable call. 2015-02-09 Markus Metzger <markus.t.metzger@intel.com> * btrace.c (btrace_enable): Pass BTRACE_FORMAT_BTS. * record-btrace.c (record_btrace_open): Remove call to target_supports_btrace. * remote.c (remote_supports_btrace): Update parameters. * target.c (target_supports_btrace): Update parameters. * target.h (to_supports_btrace, target_supports_btrace): Update parameters. * target-delegates.c: Regenerate. * target-debug.h (target_debug_print_enum_btrace_format): New. * nat/linux-btrace.c (kernel_supports_btrace): Rename into ... (kernel_supports_bts): ... this. Update users. Update warning text. (intel_supports_btrace): Rename into ... (intel_supports_bts): ... this. Update users. (cpu_supports_btrace): Rename into ... (cpu_supports_bts): ... this. Update users. (linux_supports_btrace): Update parameters. Split into this and ... (linux_supports_bts): ... this. * nat/linux-btrace.h (linux_supports_btrace): Update parameters. gdbserver/ * server.c (handle_btrace_general_set): Remove call to target_supports_btrace. (supported_btrace_packets): New. (handle_query): Call supported_btrace_packets. * target.h: include btrace-common.h. (btrace_target_info): Removed. (supports_btrace, target_supports_btrace): Update parameters.
78 lines
2.4 KiB
C
78 lines
2.4 KiB
C
/* Linux-dependent part of branch trace support for GDB, and GDBserver.
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Copyright (C) 2013-2015 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 LINUX_BTRACE_H
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#define LINUX_BTRACE_H
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#include "btrace-common.h"
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#include "vec.h"
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#include <stdint.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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/* Branch trace target information per thread. */
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struct btrace_target_info
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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 ptid of this thread. */
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ptid_t ptid;
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/* The mmap configuration mapping the branch trace perf_event buffer.
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file .. the file descriptor
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buffer .. the mmapped memory buffer
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size .. the buffer's size in pages without the configuration page
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data_head .. the data head from the last read */
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int file;
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void *buffer;
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size_t size;
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unsigned long data_head;
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#endif /* HAVE_LINUX_PERF_EVENT_H */
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/* The size of a pointer in bits for this thread.
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The information is used to identify kernel addresses in order to skip
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records from/to kernel space. */
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int ptr_bits;
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};
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/* See to_supports_btrace in target.h. */
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extern int linux_supports_btrace (struct target_ops *, enum btrace_format);
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/* See to_enable_btrace in target.h. */
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extern struct btrace_target_info *linux_enable_btrace (ptid_t ptid);
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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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#endif /* LINUX_BTRACE_H */
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