binutils-gdb/gdb/common/btrace-common.c

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btrace: add struct btrace_data Add a structure to hold the branch trace data and an enum to describe the format of that data. So far, only BTS is supported. Also added a NONE format to indicate that no branch trace data is available. This will make it easier to support different branch trace formats in the future. 2015-02-09 Markus Metzger <markus.t.metzger@intel.com> * Makefile.in (SFILES): Add common/btrace-common.c. (COMMON_OBS): Add common/btrace-common.o. (btrace-common.o): Add build rules. * btrace.c (parse_xml_btrace): Update parameters. (parse_xml_btrace_block): Set format field. (btrace_add_pc, btrace_fetch): Use struct btrace_data. (do_btrace_data_cleanup, make_cleanup_btrace_data): New. (btrace_compute_ftrace): Split into this and... (btrace_compute_ftrace_bts): ...this. (btrace_stitch_trace): Split into this and... (btrace_stitch_bts): ...this. * btrace.h (parse_xml_btrace): Update parameters. (make_cleanup_btrace_data): New. * common/btrace-common.c: New. * common/btrace-common.h: Include common-defs.h. (btrace_block_s): Update comment. (btrace_format): New. (btrace_format_string): New. (btrace_data_bts): New. (btrace_data): New. (btrace_data_init, btrace_data_fini, btrace_data_empty): New. * remote.c (remote_read_btrace): Update parameters. * target.c (target_read_btrace): Update parameters. * target.h (target_read_btrace): Update parameters. (target_ops)<to_read_btrace>: Update parameters. * x86-linux-nat.c (x86_linux_read_btrace): Update parameters. * target-delegates.c: Regenerate. * target-debug (target_debug_print_struct_btrace_data_p): New. * nat/linux-btrace.c (linux_read_btrace): Split into this and... (linux_read_bts): ...this. * nat/linux-btrace.h (linux_read_btrace): Update parameters. gdbserver/ * Makefile.in (SFILES): Add common/btrace-common.c. (OBS): Add common/btrace-common.o. (btrace-common.o): Add build rules. * linux-low: Include btrace-common.h. (linux_low_read_btrace): Use struct btrace_data. Call btrace_data_init and btrace_data_fini.
2013-11-13 15:31:07 +01:00
/* Copyright (C) 2014-2015 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/>. */
#include "common-defs.h"
#include "btrace-common.h"
/* See btrace-common.h. */
const char *
btrace_format_string (enum btrace_format format)
{
switch (format)
{
case BTRACE_FORMAT_NONE:
return _("No or unknown format");
case BTRACE_FORMAT_BTS:
return _("Branch Trace Store");
}
internal_error (__FILE__, __LINE__, _("Unknown branch trace format"));
}
/* See btrace-common.h. */
void
btrace_data_init (struct btrace_data *data)
{
data->format = BTRACE_FORMAT_NONE;
}
/* See btrace-common.h. */
void
btrace_data_fini (struct btrace_data *data)
{
switch (data->format)
{
case BTRACE_FORMAT_NONE:
/* Nothing to do. */
return;
case BTRACE_FORMAT_BTS:
VEC_free (btrace_block_s, data->variant.bts.blocks);
return;
}
internal_error (__FILE__, __LINE__, _("Unkown branch trace format."));
}
/* See btrace-common.h. */
int
btrace_data_empty (struct btrace_data *data)
{
switch (data->format)
{
case BTRACE_FORMAT_NONE:
return 1;
case BTRACE_FORMAT_BTS:
return VEC_empty (btrace_block_s, data->variant.bts.blocks);
}
internal_error (__FILE__, __LINE__, _("Unkown branch trace format."));
}