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