93 lines
2.4 KiB
C
93 lines
2.4 KiB
C
/* Default common target hook functions.
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Copyright (C) 2003-2021 Free Software Foundation, Inc.
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This file is part of GCC.
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GCC is free software; you can redistribute it and/or modify it under
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the terms of the GNU General Public License as published by the Free
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Software Foundation; either version 3, or (at your option) any later
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version.
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GCC is distributed in the hope that it will be useful, but WITHOUT ANY
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WARRANTY; without even the implied warranty of MERCHANTABILITY or
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FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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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 GCC; see the file COPYING3. If not see
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<http://www.gnu.org/licenses/>. */
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#include "config.h"
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#include "system.h"
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#include "coretypes.h"
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#include "tm.h"
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#include "common/common-target.h"
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#include "common/common-targhooks.h"
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#include "opts.h"
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/* Determine the exception handling mechanism for the target. */
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enum unwind_info_type
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default_except_unwind_info (struct gcc_options *opts ATTRIBUTE_UNUSED)
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{
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/* Obey the configure switch to turn on sjlj exceptions. */
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#ifdef CONFIG_SJLJ_EXCEPTIONS
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if (CONFIG_SJLJ_EXCEPTIONS)
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return UI_SJLJ;
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#endif
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/* ??? Change all users to the hook, then poison this. */
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#ifdef DWARF2_UNWIND_INFO
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if (DWARF2_UNWIND_INFO)
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return UI_DWARF2;
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#endif
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return UI_SJLJ;
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}
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/* To be used by targets that force dwarf2 unwind enabled. */
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enum unwind_info_type
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dwarf2_except_unwind_info (struct gcc_options *opts ATTRIBUTE_UNUSED)
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{
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/* Obey the configure switch to turn on sjlj exceptions. */
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#ifdef CONFIG_SJLJ_EXCEPTIONS
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if (CONFIG_SJLJ_EXCEPTIONS)
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return UI_SJLJ;
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#endif
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return UI_DWARF2;
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}
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/* To be used by targets that force sjlj unwind enabled. */
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enum unwind_info_type
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sjlj_except_unwind_info (struct gcc_options *opts ATTRIBUTE_UNUSED)
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{
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return UI_SJLJ;
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}
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/* Default version of TARGET_HANDLE_OPTION. */
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bool
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default_target_handle_option (struct gcc_options *opts ATTRIBUTE_UNUSED,
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struct gcc_options *opts_set ATTRIBUTE_UNUSED,
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const struct cl_decoded_option *decoded ATTRIBUTE_UNUSED,
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location_t loc ATTRIBUTE_UNUSED)
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{
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return true;
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}
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/* Default version of TARGET_GET_VALID_OPTION_VALUES. */
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vec<const char *>
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default_get_valid_option_values (int, const char *)
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{
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return vec<const char *> ();
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}
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const struct default_options empty_optimization_table[] =
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{
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{ OPT_LEVELS_NONE, 0, NULL, 0 }
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};
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