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- /* out-next.c: Functions for NeXT as target machine for GNU C compiler.
-
- 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, 675 Mass Ave, Cambridge, MA 02139, USA. */
-
- /* Make everything that used to go in the text section really go there. */
-
- int flag_no_mach_text_sections = 0;
-
- #define INIT_PRAGMA_BUF_SIZE 80
- #define PRAGMA_BUF_SIZE_INCR 40
- #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;
-
- /* Called from check_newline via the macro HANDLE_PRAGMA.
- FINPUT is the source file input stream. */
-
- void
- handle_pragma (finput)
- FILE *finput;
- {
- char c;
- char *pragma_buf;
- int pragma_buf_size, i;
- char *p;
- extern int optimize, obey_regdecls, flag_writable_strings;
-
- /* Record initial setting of optimize flag, so we can restore it. */
- if (!pragma_initialized)
- {
- pragma_initialized = 1;
- initial_optimize_flag = optimize;
- }
-
- /* Read the input line */
- pragma_buf_size = INIT_PRAGMA_BUF_SIZE;
- pragma_buf = (char *)xmalloc (pragma_buf_size);
- i = 0;
- while (c = getc (finput))
- {
- if (i == pragma_buf_size)
- {
- pragma_buf_size += PRAGMA_BUF_SIZE_INCR;
- pragma_buf = (char *)xrealloc (pragma_buf, pragma_buf_size);
- }
- if (c == '\n')
- {
- ungetc (c, finput);
- pragma_buf[i] = 0;
- break;
- }
- pragma_buf[i] = c;
- i++;
- }
- p = pragma_buf;
- /* Skip white space */
- while ((*p == ' ') || (*p == '\t')) p++;
-
- if (OPT_STRCMP ("CC_OPT_ON"))
- {
- optimize = 1, obey_regdecls = 0;
- warning ("optimization turned on");
- }
- else if (OPT_STRCMP ("CC_OPT_OFF"))
- {
- optimize = 0, obey_regdecls = 1;
- warning ("optimization turned off");
- }
- else if (OPT_STRCMP ("CC_OPT_RESTORE"))
- {
- 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");
- }
- else if (OPT_STRCMP ("CC_WRITABLE_STRINGS"))
- flag_writable_strings = 1;
- else if (OPT_STRCMP ("CC_NON_WRITABLE_STRINGS"))
- flag_writable_strings = 0;
- else if (OPT_STRCMP("CC_NO_MACH_TEXT_SECTIONS"))
- flag_no_mach_text_sections = 1;
- /* Ignore the rest of the line. */
- free (pragma_buf);
- }
-