103 lines
2.8 KiB
C
103 lines
2.8 KiB
C
/* Functions for generic NeXT as target machine for GNU C compiler.
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Copyright (C) 1989, 90-93, 96, 1997 Free Software Foundation, Inc.
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This file is part of GNU CC.
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GNU CC 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 2, or (at your option)
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any later version.
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GNU CC 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 GNU CC; see the file COPYING. If not, write to
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the Free Software Foundation, 59 Temple Place - Suite 330,
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Boston, MA 02111-1307, USA. */
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#include "config.h"
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#include <stdio.h>
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#include "flags.h"
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#include "tree.h"
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/* Make everything that used to go in the text section really go there. */
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int flag_no_mach_text_sections = 0;
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#define OPT_STRCMP(opt) (!strncmp (opt, p, sizeof (opt)-1))
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/* 1 if handle_pragma has been called yet. */
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static int pragma_initialized;
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/* Initial setting of `optimize'. */
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static int initial_optimize_flag;
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extern char *get_directive_line ();
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/* Called from check_newline via the macro HANDLE_PRAGMA.
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FINPUT is the source file input stream.
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CH is the first character after `#pragma'.
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The result is 1 if the pragma was handled. */
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int
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handle_pragma (finput, node)
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FILE *finput;
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tree node;
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{
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int retval = 0;
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register char *pname;
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/* Record initial setting of optimize flag, so we can restore it. */
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if (!pragma_initialized)
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{
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pragma_initialized = 1;
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initial_optimize_flag = optimize;
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}
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if (TREE_CODE (node) != IDENTIFIER_NODE)
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return 0;
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pname = IDENTIFIER_POINTER (node);
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if (strcmp (pname, "CC_OPT_ON") == 0)
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{
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optimize = 1, obey_regdecls = 0;
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warning ("optimization turned on");
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retval = 1;
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}
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else if (strcmp (pname, "CC_OPT_OFF") == 0)
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{
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optimize = 0, obey_regdecls = 1;
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warning ("optimization turned off");
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retval = 1;
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}
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else if (strcmp (pname, "CC_OPT_RESTORE") == 0)
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{
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extern int initial_optimize_flag;
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if (optimize != initial_optimize_flag)
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{
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if (initial_optimize_flag)
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obey_regdecls = 0;
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else
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obey_regdecls = 1;
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optimize = initial_optimize_flag;
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}
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warning ("optimization level restored");
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retval = 1;
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}
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else if (strcmp (pname, "CC_WRITABLE_STRINGS") == 0)
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flag_writable_strings = retval = 1;
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else if (strcmp (pname, "CC_NON_WRITABLE_STRINGS") == 0)
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flag_writable_strings = 0, retval = 1;
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else if (strcmp (pname, "CC_NO_MACH_TEXT_SECTIONS") == 0)
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flag_no_mach_text_sections = retval = 1;
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return retval;
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}
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