| 1 | /* Functions for generic NeXT as target machine for GNU C compiler. |
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| 2 | Copyright (C) 1989, 1990, 1991, 1992, 1993 Free Software Foundation, Inc. |
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| 3 | |
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| 4 | This file is part of GNU CC. |
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| 5 | |
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| 6 | GNU CC is free software; you can redistribute it and/or modify |
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| 7 | it under the terms of the GNU General Public License as published by |
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| 8 | the Free Software Foundation; either version 2, or (at your option) |
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| 9 | any later version. |
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| 10 | |
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| 11 | GNU CC is distributed in the hope that it will be useful, |
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| 12 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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| 14 | GNU General Public License for more details. |
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| 15 | |
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| 16 | You should have received a copy of the GNU General Public License |
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| 17 | along with GNU CC; see the file COPYING. If not, write to |
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| 18 | the Free Software Foundation, 59 Temple Place - Suite 330, |
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| 19 | Boston, MA 02111-1307, USA. */ |
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| 20 | |
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| 21 | /* Make everything that used to go in the text section really go there. */ |
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| 22 | |
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| 23 | int flag_no_mach_text_sections = 0; |
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| 24 | |
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| 25 | #define OPT_STRCMP(opt) (!strncmp (opt, p, sizeof (opt)-1)) |
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| 26 | |
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| 27 | /* 1 if handle_pragma has been called yet. */ |
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| 28 | |
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| 29 | static int pragma_initialized; |
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| 30 | |
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| 31 | /* Initial setting of `optimize'. */ |
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| 32 | |
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| 33 | static int initial_optimize_flag; |
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| 34 | |
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| 35 | extern char *get_directive_line (); |
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| 36 | |
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| 37 | /* Called from check_newline via the macro HANDLE_PRAGMA. |
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| 38 | FINPUT is the source file input stream. */ |
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| 39 | |
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| 40 | void |
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| 41 | handle_pragma (finput, get_line_function) |
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| 42 | FILE *finput; |
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| 43 | char *(*get_line_function) (); |
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| 44 | { |
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| 45 | register char *p = (*get_line_function) (finput); |
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| 46 | |
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| 47 | /* Record initial setting of optimize flag, so we can restore it. */ |
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| 48 | if (!pragma_initialized) |
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| 49 | { |
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| 50 | pragma_initialized = 1; |
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| 51 | initial_optimize_flag = optimize; |
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| 52 | } |
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| 53 | |
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| 54 | if (OPT_STRCMP ("CC_OPT_ON")) |
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| 55 | { |
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| 56 | optimize = 1, obey_regdecls = 0; |
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| 57 | warning ("optimization turned on"); |
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| 58 | } |
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| 59 | else if (OPT_STRCMP ("CC_OPT_OFF")) |
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| 60 | { |
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| 61 | optimize = 0, obey_regdecls = 1; |
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| 62 | warning ("optimization turned off"); |
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| 63 | } |
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| 64 | else if (OPT_STRCMP ("CC_OPT_RESTORE")) |
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| 65 | { |
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| 66 | extern int initial_optimize_flag; |
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| 67 | |
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| 68 | if (optimize != initial_optimize_flag) |
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| 69 | { |
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| 70 | if (initial_optimize_flag) |
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| 71 | obey_regdecls = 0; |
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| 72 | else |
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| 73 | obey_regdecls = 1; |
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| 74 | optimize = initial_optimize_flag; |
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| 75 | } |
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| 76 | warning ("optimization level restored"); |
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| 77 | } |
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| 78 | else if (OPT_STRCMP ("CC_WRITABLE_STRINGS")) |
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| 79 | flag_writable_strings = 1; |
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| 80 | else if (OPT_STRCMP ("CC_NON_WRITABLE_STRINGS")) |
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| 81 | flag_writable_strings = 0; |
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| 82 | else if (OPT_STRCMP ("CC_NO_MACH_TEXT_SECTIONS")) |
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| 83 | flag_no_mach_text_sections = 1; |
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| 84 | } |
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