git://gcc.gnu.org / gcc.git / blame
| Commit | Line | Data |
|---|---|---|
| 9fdecdb7 TW |
1 | /* Functions for generic NeXT as target machine for GNU C compiler. |
| 2 | Copyright (C) 1989, 1990, 1991, 1992, 1993 Free Software Foundation, Inc. | |
| 3 | ||
| 4 | This file is part of GNU CC. | |
| 5 | ||
| 6 | GNU CC is free software; you can redistribute it and/or modify | |
| 7 | it under the terms of the GNU General Public License as published by | |
| 8 | the Free Software Foundation; either version 2, or (at your option) | |
| 9 | any later version. | |
| 10 | ||
| 11 | GNU CC is distributed in the hope that it will be useful, | |
| 12 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
| 14 | GNU General Public License for more details. | |
| 15 | ||
| 16 | You should have received a copy of the GNU General Public License | |
| 17 | along with GNU CC; see the file COPYING. If not, write to | |
| 18 | the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */ | |
| 19 | ||
| 20 | /* Make everything that used to go in the text section really go there. */ | |
| 21 | ||
| 22 | int flag_no_mach_text_sections = 0; | |
| 23 | ||
| 24 | #define OPT_STRCMP(opt) (!strncmp (opt, p, sizeof (opt)-1)) | |
| 25 | ||
| 26 | /* 1 if handle_pragma has been called yet. */ | |
| 27 | ||
| 28 | static int pragma_initialized; | |
| 29 | ||
| 30 | /* Initial setting of `optimize'. */ | |
| 31 | ||
| 32 | static int initial_optimize_flag; | |
| 33 | ||
| 34 | extern char *get_directive_line (); | |
| 35 | ||
| 36 | /* Called from check_newline via the macro HANDLE_PRAGMA. | |
| 37 | FINPUT is the source file input stream. */ | |
| 38 | ||
| 39 | void | |
| 40 | handle_pragma (finput, get_line_function) | |
| 41 | FILE *finput; | |
| 42 | char *(*get_line_function) (); | |
| 43 | { | |
| 44 | register char *p = (*get_line_function) (finput); | |
| 45 | ||
| 46 | /* Record initial setting of optimize flag, so we can restore it. */ | |
| 47 | if (!pragma_initialized) | |
| 48 | { | |
| 49 | pragma_initialized = 1; | |
| 50 | initial_optimize_flag = optimize; | |
| 51 | } | |
| 52 | ||
| 53 | if (OPT_STRCMP ("CC_OPT_ON")) | |
| 54 | { | |
| 55 | optimize = 1, obey_regdecls = 0; | |
| 56 | warning ("optimization turned on"); | |
| 57 | } | |
| 58 | else if (OPT_STRCMP ("CC_OPT_OFF")) | |
| 59 | { | |
| 60 | optimize = 0, obey_regdecls = 1; | |
| 61 | warning ("optimization turned off"); | |
| 62 | } | |
| 63 | else if (OPT_STRCMP ("CC_OPT_RESTORE")) | |
| 64 | { | |
| 65 | extern int initial_optimize_flag; | |
| 66 | ||
| 67 | if (optimize != initial_optimize_flag) | |
| 68 | { | |
| 69 | if (initial_optimize_flag) | |
| 70 | obey_regdecls = 0; | |
| 71 | else | |
| 72 | obey_regdecls = 1; | |
| 73 | optimize = initial_optimize_flag; | |
| 74 | } | |
| 75 | warning ("optimization level restored"); | |
| 76 | } | |
| 77 | else if (OPT_STRCMP ("CC_WRITABLE_STRINGS")) | |
| 78 | flag_writable_strings = 1; | |
| 79 | else if (OPT_STRCMP ("CC_NON_WRITABLE_STRINGS")) | |
| 80 | flag_writable_strings = 0; | |
| 81 | else if (OPT_STRCMP ("CC_NO_MACH_TEXT_SECTIONS")) | |
| 82 | flag_no_mach_text_sections = 1; | |
| 83 | } |