* c-exp.y, m2-exp.y: Migrate code that has nothing to do with
expression parsing into c-lang.c and m2-lang.c respectively. * c-lang.c, m2-lang.c: New files, code migrated from c-exp.y and m2-exp.y respectively. * c-lang.h, m2-lang.h: New files, internal interfaces between c-* and m2-* files respectively. * Makefile.in (SFILES_MAINDIR): Add c-lang.c, m2-lang.c. * Makefile.in (HFILES): Add c-lang.h, m2-lang.h. * Makefile.in (OBS): Add c-lang.o, m2-lang.o. * expression.h (struct block): Forward declaration for prototypes. * language.h (struct objfile): Forward declaration for prototypes. **** start-sanitize-chill **** * Makefile.in (SFILES_MAINDIR): Add ch-lang.c. * Makefile.in (HFILES): Add ch-lang.h. * Makefile.in (OBS): Add ch-lang.o. * ch-exp.y: Migrate code that has nothing to do with expression parsing into ch-lang.c. * ch-lang.c: New file, code migrated from c-exp.y. * ch-lang.h: New file, internal interface between ch-* files. **** end-sanitize-chill ****
This commit is contained in:
Fred Fish
parent
160be0ded9
commit
22e3975901
13 changed files with 1402 additions and 1245 deletions
306
gdb/ch-lang.c
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306
gdb/ch-lang.c
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/* Chill language support routines for GDB, the GNU debugger.
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Copyright 1992 Free Software Foundation, Inc.
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This file is part of GDB.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
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#include "defs.h"
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#include "symtab.h"
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#include "gdbtypes.h"
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#include "expression.h"
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#include "parser-defs.h"
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#include "language.h"
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#include "ch-lang.h"
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static void
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chill_printchar (c, stream)
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register int c;
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FILE *stream;
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{
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c &= 0xFF; /* Avoid sign bit follies */
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if (PRINT_LITERAL_FORM (c))
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{
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fprintf_filtered (stream, "'%c'", c);
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}
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else
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{
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fprintf_filtered (stream, "C'%.2x'", (unsigned int) c);
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}
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}
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/* Print the character string STRING, printing at most LENGTH characters.
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Printing stops early if the number hits print_max; repeat counts
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are printed as appropriate. Print ellipses at the end if we
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had to stop before printing LENGTH characters, or if FORCE_ELLIPSES.
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Note that gdb maintains the length of strings without counting the
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terminating null byte, while chill strings are typically written with
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an explicit null byte. So we always assume an implied null byte
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until gdb is able to maintain non-null terminated strings as well
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as null terminated strings (FIXME).
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*/
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static void
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chill_printstr (stream, string, length, force_ellipses)
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FILE *stream;
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char *string;
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unsigned int length;
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int force_ellipses;
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{
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register unsigned int i;
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unsigned int things_printed = 0;
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int in_literal_form = 0;
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int in_control_form = 0;
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int need_slashslash = 0;
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unsigned int c;
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extern int repeat_count_threshold;
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extern int print_max;
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if (length == 0)
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{
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chill_printchar ('\0', stream);
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return;
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}
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for (i = 0; i < length && things_printed < print_max; ++i)
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{
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/* Position of the character we are examining
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to see whether it is repeated. */
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unsigned int rep1;
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/* Number of repetitions we have detected so far. */
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unsigned int reps;
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QUIT;
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if (need_slashslash)
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{
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fputs_filtered ("//", stream);
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need_slashslash = 0;
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}
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rep1 = i + 1;
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reps = 1;
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while (rep1 < length && string[rep1] == string[i])
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{
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++rep1;
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++reps;
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}
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c = string[i];
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if (reps > repeat_count_threshold)
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{
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if (in_control_form || in_literal_form)
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{
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fputs_filtered ("'//", stream);
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in_control_form = in_literal_form = 0;
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}
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chill_printchar (c, stream);
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fprintf_filtered (stream, "<repeats %u times>", reps);
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i = rep1 - 1;
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things_printed += repeat_count_threshold;
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need_slashslash = 1;
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}
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else
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{
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if (PRINT_LITERAL_FORM (c))
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{
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if (!in_literal_form)
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{
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if (in_control_form)
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{
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fputs_filtered ("'//", stream);
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in_control_form = 0;
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}
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fputs_filtered ("'", stream);
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in_literal_form = 1;
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}
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fprintf_filtered (stream, "%c", c);
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}
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else
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{
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if (!in_control_form)
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{
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if (in_literal_form)
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{
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fputs_filtered ("'//", stream);
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in_literal_form = 0;
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}
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fputs_filtered ("c'", stream);
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in_control_form = 1;
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}
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fprintf_filtered (stream, "%.2x", c);
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}
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++things_printed;
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}
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}
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/* Terminate the quotes if necessary. */
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if (in_literal_form || in_control_form)
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{
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fputs_filtered ("'", stream);
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}
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if (force_ellipses || (i < length))
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{
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fputs_filtered ("...", stream);
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}
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}
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static struct type *
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chill_create_fundamental_type (objfile, typeid)
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struct objfile *objfile;
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int typeid;
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{
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register struct type *type = NULL;
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register int nbytes;
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switch (typeid)
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{
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default:
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/* FIXME: For now, if we are asked to produce a type not in this
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language, create the equivalent of a C integer type with the
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name "<?type?>". When all the dust settles from the type
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reconstruction work, this should probably become an error. */
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type = init_type (TYPE_CODE_INT,
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TARGET_INT_BIT / TARGET_CHAR_BIT,
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0, "<?type?>", objfile);
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warning ("internal error: no chill fundamental type %d", typeid);
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break;
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case FT_BOOLEAN:
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type = init_type (TYPE_CODE_BOOL, 1, TYPE_FLAG_UNSIGNED, "BOOL", objfile);
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break;
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case FT_CHAR:
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type = init_type (TYPE_CODE_INT, 1, TYPE_FLAG_UNSIGNED, "CHAR", objfile);
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break;
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case FT_SIGNED_CHAR:
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type = init_type (TYPE_CODE_INT, 1, TYPE_FLAG_SIGNED, "BYTE", objfile);
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break;
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case FT_UNSIGNED_CHAR:
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type = init_type (TYPE_CODE_INT, 1, TYPE_FLAG_UNSIGNED, "UBYTE", objfile);
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break;
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case FT_SHORT: /* Chill ints are 2 bytes */
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type = init_type (TYPE_CODE_INT, 2, TYPE_FLAG_SIGNED, "INT", objfile);
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break;
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case FT_UNSIGNED_SHORT: /* Chill ints are 2 bytes */
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type = init_type (TYPE_CODE_INT, 2, TYPE_FLAG_UNSIGNED, "UINT", objfile);
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break;
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case FT_INTEGER: /* Chill longs are 4 bytes */
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type = init_type (TYPE_CODE_INT, 4, TYPE_FLAG_SIGNED, "LONG", objfile);
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break;
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case FT_UNSIGNED_INTEGER: /* Chill longs are 4 bytes */
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type = init_type (TYPE_CODE_INT, 4, TYPE_FLAG_UNSIGNED, "ULONG", objfile);
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break;
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case FT_FLOAT:
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type = init_type (TYPE_CODE_FLT, 4, 0, "REAL", objfile);
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break;
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case FT_DBL_PREC_FLOAT:
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type = init_type (TYPE_CODE_FLT, 8, 0, "LONG_REAL", objfile);
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break;
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}
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return (type);
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}
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/* Table of operators and their precedences for printing expressions. */
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const static struct op_print chill_op_print_tab[] = {
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{"AND", BINOP_LOGICAL_AND, PREC_LOGICAL_AND, 0},
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{"OR", BINOP_LOGICAL_OR, PREC_LOGICAL_OR, 0},
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{"NOT", UNOP_LOGICAL_NOT, PREC_PREFIX, 0},
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{"MOD", BINOP_REM, PREC_MUL, 0},
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{":=", BINOP_ASSIGN, PREC_ASSIGN, 1},
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{"=", BINOP_EQUAL, PREC_EQUAL, 0},
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{"/=", BINOP_NOTEQUAL, PREC_EQUAL, 0},
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{"<=", BINOP_LEQ, PREC_ORDER, 0},
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{">=", BINOP_GEQ, PREC_ORDER, 0},
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{">", BINOP_GTR, PREC_ORDER, 0},
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{"<", BINOP_LESS, PREC_ORDER, 0},
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{"+", BINOP_ADD, PREC_ADD, 0},
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{"-", BINOP_SUB, PREC_ADD, 0},
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{"*", BINOP_MUL, PREC_MUL, 0},
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{"/", BINOP_DIV, PREC_MUL, 0},
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{"-", UNOP_NEG, PREC_PREFIX, 0},
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{NULL, 0, 0, 0}
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};
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/* The built-in types of Chill. */
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struct type *builtin_type_chill_bool;
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struct type *builtin_type_chill_char;
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struct type *builtin_type_chill_long;
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struct type *builtin_type_chill_ulong;
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struct type *builtin_type_chill_real;
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struct type ** const (chill_builtin_types[]) =
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{
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&builtin_type_chill_bool,
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&builtin_type_chill_char,
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&builtin_type_chill_long,
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&builtin_type_chill_ulong,
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&builtin_type_chill_real,
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0
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};
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const struct language_defn chill_language_defn = {
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"chill",
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language_chill,
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chill_builtin_types,
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range_check_on,
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type_check_on,
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chill_parse, /* parser */
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chill_error, /* parser error function */
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chill_printchar, /* print a character constant */
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chill_printstr, /* function to print a string constant */
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chill_create_fundamental_type,/* Create fundamental type in this language */
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&BUILTIN_TYPE_LONGEST, /* longest signed integral type */
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&BUILTIN_TYPE_UNSIGNED_LONGEST,/* longest unsigned integral type */
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&builtin_type_chill_real, /* longest floating point type */
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{"", "B'", "", ""}, /* Binary format info */
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{"O'%o", "O'", "o", ""}, /* Octal format info */
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{"D'%d", "D'", "d", ""}, /* Decimal format info */
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{"H'%x", "H'", "x", ""}, /* Hex format info */
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chill_op_print_tab, /* expression operators for printing */
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LANG_MAGIC
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};
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/* Initialization for Chill */
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void
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_initialize_chill_exp ()
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{
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builtin_type_chill_bool =
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init_type (TYPE_CODE_BOOL, TARGET_CHAR_BIT / TARGET_CHAR_BIT,
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TYPE_FLAG_UNSIGNED,
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"BOOL", (struct objfile *) NULL);
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builtin_type_chill_char =
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init_type (TYPE_CODE_CHAR, TARGET_CHAR_BIT / TARGET_CHAR_BIT,
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TYPE_FLAG_UNSIGNED,
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"CHAR", (struct objfile *) NULL);
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builtin_type_chill_long =
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init_type (TYPE_CODE_INT, TARGET_LONG_BIT / TARGET_CHAR_BIT,
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0,
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"LONG", (struct objfile *) NULL);
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builtin_type_chill_ulong =
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init_type (TYPE_CODE_INT, TARGET_LONG_BIT / TARGET_CHAR_BIT,
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TYPE_FLAG_UNSIGNED,
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"ULONG", (struct objfile *) NULL);
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builtin_type_chill_real =
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init_type (TYPE_CODE_FLT, TARGET_DOUBLE_BIT / TARGET_CHAR_BIT,
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0,
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"LONG_REAL", (struct objfile *) NULL);
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add_language (&chill_language_defn);
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}
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