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Annotation of gcc/config/nextstep.c, revision 1.1.1.2

1.1       root        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
1.1.1.2 ! root       18: the Free Software Foundation, 59 Temple Place - Suite 330,
        !            19: Boston, MA 02111-1307, USA.  */
1.1       root       20: 
                     21: /* Make everything that used to go in the text section really go there.  */
                     22: 
                     23: int flag_no_mach_text_sections = 0;
                     24: 
                     25: #define OPT_STRCMP(opt) (!strncmp (opt, p, sizeof (opt)-1))
                     26: 
                     27: /* 1 if handle_pragma has been called yet.  */
                     28: 
                     29: static int pragma_initialized;
                     30: 
                     31: /* Initial setting of `optimize'.  */
                     32: 
                     33: static int initial_optimize_flag;
                     34: 
                     35: extern char *get_directive_line ();
                     36: 
                     37: /* Called from check_newline via the macro HANDLE_PRAGMA.
                     38:    FINPUT is the source file input stream.  */
                     39: 
                     40: void
                     41: handle_pragma (finput, get_line_function)
                     42:      FILE *finput;
                     43:      char *(*get_line_function) ();
                     44: {
                     45:   register char *p = (*get_line_function) (finput);
                     46: 
                     47:   /* Record initial setting of optimize flag, so we can restore it.  */
                     48:   if (!pragma_initialized)
                     49:     {
                     50:       pragma_initialized = 1;
                     51:       initial_optimize_flag = optimize;
                     52:     }
                     53: 
                     54:   if (OPT_STRCMP ("CC_OPT_ON"))
                     55:     {
                     56:       optimize = 1, obey_regdecls = 0;
                     57:       warning ("optimization turned on");
                     58:     }
                     59:   else if (OPT_STRCMP ("CC_OPT_OFF"))
                     60:     {
                     61:       optimize = 0, obey_regdecls = 1;
                     62:       warning ("optimization turned off");
                     63:     }
                     64:   else if (OPT_STRCMP ("CC_OPT_RESTORE"))
                     65:     {
                     66:       extern int initial_optimize_flag;
                     67: 
                     68:       if (optimize != initial_optimize_flag)
                     69:        {
                     70:          if (initial_optimize_flag)
                     71:            obey_regdecls = 0;
                     72:          else
                     73:            obey_regdecls = 1;
                     74:          optimize = initial_optimize_flag;
                     75:        }
                     76:       warning ("optimization level restored");
                     77:     }
                     78:   else if (OPT_STRCMP ("CC_WRITABLE_STRINGS"))
                     79:     flag_writable_strings = 1;
                     80:   else if (OPT_STRCMP ("CC_NON_WRITABLE_STRINGS"))
                     81:     flag_writable_strings = 0;
                     82:   else if (OPT_STRCMP ("CC_NO_MACH_TEXT_SECTIONS"))
                     83:     flag_no_mach_text_sections = 1;
                     84: }

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