| 1 |
708 |
jeremybenn |
/* Common hooks for ARM.
|
| 2 |
|
|
Copyright (C) 1991, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001,
|
| 3 |
|
|
2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011
|
| 4 |
|
|
Free Software Foundation, Inc.
|
| 5 |
|
|
|
| 6 |
|
|
This file is part of GCC.
|
| 7 |
|
|
|
| 8 |
|
|
GCC is free software; you can redistribute it and/or modify it
|
| 9 |
|
|
under the terms of the GNU General Public License as published
|
| 10 |
|
|
by the Free Software Foundation; either version 3, or (at your
|
| 11 |
|
|
option) any later version.
|
| 12 |
|
|
|
| 13 |
|
|
GCC is distributed in the hope that it will be useful, but WITHOUT
|
| 14 |
|
|
ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
|
| 15 |
|
|
or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public
|
| 16 |
|
|
License for more details.
|
| 17 |
|
|
|
| 18 |
|
|
You should have received a copy of the GNU General Public License
|
| 19 |
|
|
along with GCC; see the file COPYING3. If not see
|
| 20 |
|
|
<http://www.gnu.org/licenses/>. */
|
| 21 |
|
|
|
| 22 |
|
|
#include "config.h"
|
| 23 |
|
|
#include "system.h"
|
| 24 |
|
|
#include "coretypes.h"
|
| 25 |
|
|
#include "tm.h"
|
| 26 |
|
|
#include "tm_p.h"
|
| 27 |
|
|
#include "common/common-target.h"
|
| 28 |
|
|
#include "common/common-target-def.h"
|
| 29 |
|
|
#include "opts.h"
|
| 30 |
|
|
#include "flags.h"
|
| 31 |
|
|
|
| 32 |
|
|
/* Set default optimization options. */
|
| 33 |
|
|
static const struct default_options arm_option_optimization_table[] =
|
| 34 |
|
|
{
|
| 35 |
|
|
/* Enable section anchors by default at -O1 or higher. */
|
| 36 |
|
|
{ OPT_LEVELS_1_PLUS, OPT_fsection_anchors, NULL, 1 },
|
| 37 |
|
|
{ OPT_LEVELS_1_PLUS, OPT_fomit_frame_pointer, NULL, 1 },
|
| 38 |
|
|
{ OPT_LEVELS_NONE, 0, NULL, 0 }
|
| 39 |
|
|
};
|
| 40 |
|
|
|
| 41 |
|
|
/* Implement TARGET_EXCEPT_UNWIND_INFO. */
|
| 42 |
|
|
|
| 43 |
|
|
enum unwind_info_type
|
| 44 |
|
|
arm_except_unwind_info (struct gcc_options *opts)
|
| 45 |
|
|
{
|
| 46 |
|
|
/* Honor the --enable-sjlj-exceptions configure switch. */
|
| 47 |
|
|
#ifdef CONFIG_SJLJ_EXCEPTIONS
|
| 48 |
|
|
if (CONFIG_SJLJ_EXCEPTIONS)
|
| 49 |
|
|
return UI_SJLJ;
|
| 50 |
|
|
#endif
|
| 51 |
|
|
|
| 52 |
|
|
/* If not using ARM EABI unwind tables... */
|
| 53 |
|
|
if (ARM_UNWIND_INFO)
|
| 54 |
|
|
{
|
| 55 |
|
|
/* For simplicity elsewhere in this file, indicate that all unwind
|
| 56 |
|
|
info is disabled if we're not emitting unwind tables. */
|
| 57 |
|
|
if (!opts->x_flag_exceptions && !opts->x_flag_unwind_tables)
|
| 58 |
|
|
return UI_NONE;
|
| 59 |
|
|
else
|
| 60 |
|
|
return UI_TARGET;
|
| 61 |
|
|
}
|
| 62 |
|
|
|
| 63 |
|
|
/* ... we use sjlj exceptions for backwards compatibility. */
|
| 64 |
|
|
return UI_SJLJ;
|
| 65 |
|
|
}
|
| 66 |
|
|
|
| 67 |
|
|
#undef TARGET_DEFAULT_TARGET_FLAGS
|
| 68 |
|
|
#define TARGET_DEFAULT_TARGET_FLAGS (TARGET_DEFAULT | MASK_SCHED_PROLOG)
|
| 69 |
|
|
|
| 70 |
|
|
#undef TARGET_OPTION_OPTIMIZATION_TABLE
|
| 71 |
|
|
#define TARGET_OPTION_OPTIMIZATION_TABLE arm_option_optimization_table
|
| 72 |
|
|
|
| 73 |
|
|
#undef TARGET_EXCEPT_UNWIND_INFO
|
| 74 |
|
|
#define TARGET_EXCEPT_UNWIND_INFO arm_except_unwind_info
|
| 75 |
|
|
|
| 76 |
|
|
struct gcc_targetm_common targetm_common = TARGETM_COMMON_INITIALIZER;
|
