972 lines
26 KiB
C
972 lines
26 KiB
C
/* Fortran language support routines for GDB, the GNU debugger.
|
||
Copyright 1993, 1994, 1996 Free Software Foundation, Inc.
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Contributed by Motorola. Adapted from the C parser by Farooq Butt
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(fmbutt@engage.sps.mot.com).
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||
|
||
This file is part of GDB.
|
||
|
||
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
|
||
the Free Software Foundation; either version 2 of the License, or
|
||
(at your option) any later version.
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||
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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
|
||
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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||
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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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
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#include "defs.h"
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#include "gdb_string.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 "f-lang.h"
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/* The built-in types of F77. FIXME: integer*4 is missing, plain
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logical is missing (builtin_type_logical is logical*4). */
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struct type *builtin_type_f_character;
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struct type *builtin_type_f_logical;
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struct type *builtin_type_f_logical_s1;
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struct type *builtin_type_f_logical_s2;
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struct type *builtin_type_f_integer;
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struct type *builtin_type_f_integer_s2;
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struct type *builtin_type_f_real;
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struct type *builtin_type_f_real_s8;
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struct type *builtin_type_f_real_s16;
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struct type *builtin_type_f_complex_s8;
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struct type *builtin_type_f_complex_s16;
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struct type *builtin_type_f_complex_s32;
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struct type *builtin_type_f_void;
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/* Following is dubious stuff that had been in the xcoff reader. */
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struct saved_fcn
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{
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long line_offset; /* Line offset for function */
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struct saved_fcn *next;
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};
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struct saved_bf_symnum
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{
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long symnum_fcn; /* Symnum of function (i.e. .function directive) */
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long symnum_bf; /* Symnum of .bf for this function */
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struct saved_bf_symnum *next;
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};
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typedef struct saved_fcn SAVED_FUNCTION, *SAVED_FUNCTION_PTR;
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typedef struct saved_bf_symnum SAVED_BF, *SAVED_BF_PTR;
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/* Local functions */
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#if 0
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static void clear_function_list PARAMS ((void));
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static long get_bf_for_fcn PARAMS ((long));
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static void clear_bf_list PARAMS ((void));
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static void patch_all_commons_by_name PARAMS ((char *, CORE_ADDR, int));
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static SAVED_F77_COMMON_PTR find_first_common_named PARAMS ((char *));
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static void add_common_entry PARAMS ((struct symbol *));
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static void add_common_block PARAMS ((char *, CORE_ADDR, int, char *));
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static SAVED_FUNCTION *allocate_saved_function_node PARAMS ((void));
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static SAVED_BF_PTR allocate_saved_bf_node PARAMS ((void));
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static COMMON_ENTRY_PTR allocate_common_entry_node PARAMS ((void));
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static SAVED_F77_COMMON_PTR allocate_saved_f77_common_node PARAMS ((void));
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static void patch_common_entries PARAMS ((SAVED_F77_COMMON_PTR, CORE_ADDR, int));
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#endif
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static struct type *f_create_fundamental_type PARAMS ((struct objfile *, int));
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static void f_printstr PARAMS ((FILE *, char *, unsigned int, int));
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static void f_printchar PARAMS ((int, FILE *));
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static void emit_char PARAMS ((int, FILE *, int));
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/* Print the character C on STREAM as part of the contents of a literal
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string whose delimiter is QUOTER. Note that that format for printing
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characters and strings is language specific.
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FIXME: This is a copy of the same function from c-exp.y. It should
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be replaced with a true F77 version. */
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static void
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emit_char (c, stream, quoter)
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register int c;
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FILE *stream;
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int quoter;
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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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if (c == '\\' || c == quoter)
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fputs_filtered ("\\", stream);
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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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switch (c)
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{
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case '\n':
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fputs_filtered ("\\n", stream);
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break;
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case '\b':
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fputs_filtered ("\\b", stream);
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break;
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case '\t':
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fputs_filtered ("\\t", stream);
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break;
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case '\f':
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fputs_filtered ("\\f", stream);
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break;
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case '\r':
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fputs_filtered ("\\r", stream);
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break;
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case '\033':
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fputs_filtered ("\\e", stream);
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break;
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case '\007':
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fputs_filtered ("\\a", stream);
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break;
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default:
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fprintf_filtered (stream, "\\%.3o", (unsigned int) c);
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break;
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}
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}
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}
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/* FIXME: This is a copy of the same function from c-exp.y. It should
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be replaced with a true F77version. */
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static void
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f_printchar (c, stream)
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int c;
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FILE *stream;
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{
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fputs_filtered ("'", stream);
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emit_char (c, stream, '\'');
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fputs_filtered ("'", stream);
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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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FIXME: This is a copy of the same function from c-exp.y. It should
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be replaced with a true F77 version. */
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static void
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f_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_quotes = 0;
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int need_comma = 0;
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extern int inspect_it;
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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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fputs_filtered ("''", stdout);
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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_comma)
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{
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fputs_filtered (", ", stream);
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need_comma = 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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if (reps > repeat_count_threshold)
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{
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if (in_quotes)
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{
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if (inspect_it)
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fputs_filtered ("\\', ", stream);
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else
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fputs_filtered ("', ", stream);
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in_quotes = 0;
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}
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f_printchar (string[i], 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_comma = 1;
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}
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else
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{
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if (!in_quotes)
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{
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if (inspect_it)
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fputs_filtered ("\\'", stream);
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else
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fputs_filtered ("'", stream);
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in_quotes = 1;
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}
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emit_char (string[i], stream, '"');
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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_quotes)
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{
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if (inspect_it)
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fputs_filtered ("\\'", stream);
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else
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fputs_filtered ("'", stream);
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}
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if (force_ellipses || i < length)
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fputs_filtered ("...", stream);
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}
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/* FIXME: This is a copy of c_create_fundamental_type(), before
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all the non-C types were stripped from it. Needs to be fixed
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by an experienced F77 programmer. */
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static struct type *
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f_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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switch (typeid)
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{
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case FT_VOID:
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type = init_type (TYPE_CODE_VOID,
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TARGET_CHAR_BIT / TARGET_CHAR_BIT,
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0, "VOID", objfile);
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break;
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case FT_BOOLEAN:
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type = init_type (TYPE_CODE_BOOL,
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TARGET_CHAR_BIT / TARGET_CHAR_BIT,
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TYPE_FLAG_UNSIGNED, "boolean", objfile);
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break;
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case FT_STRING:
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type = init_type (TYPE_CODE_STRING,
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TARGET_CHAR_BIT / TARGET_CHAR_BIT,
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0, "string", objfile);
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break;
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case FT_CHAR:
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type = init_type (TYPE_CODE_INT,
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TARGET_CHAR_BIT / TARGET_CHAR_BIT,
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0, "character", objfile);
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break;
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case FT_SIGNED_CHAR:
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type = init_type (TYPE_CODE_INT,
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TARGET_CHAR_BIT / TARGET_CHAR_BIT,
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0, "integer*1", objfile);
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break;
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case FT_UNSIGNED_CHAR:
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type = init_type (TYPE_CODE_BOOL,
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TARGET_CHAR_BIT / TARGET_CHAR_BIT,
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TYPE_FLAG_UNSIGNED, "logical*1", objfile);
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break;
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case FT_SHORT:
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type = init_type (TYPE_CODE_INT,
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TARGET_SHORT_BIT / TARGET_CHAR_BIT,
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0, "integer*2", objfile);
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break;
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case FT_SIGNED_SHORT:
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type = init_type (TYPE_CODE_INT,
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TARGET_SHORT_BIT / TARGET_CHAR_BIT,
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0, "short", objfile); /* FIXME-fnf */
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break;
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case FT_UNSIGNED_SHORT:
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type = init_type (TYPE_CODE_BOOL,
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TARGET_SHORT_BIT / TARGET_CHAR_BIT,
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TYPE_FLAG_UNSIGNED, "logical*2", objfile);
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break;
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case FT_INTEGER:
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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, "integer*4", objfile);
|
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break;
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||
case FT_SIGNED_INTEGER:
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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, "integer", objfile); /* FIXME -fnf */
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||
break;
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||
case FT_UNSIGNED_INTEGER:
|
||
type = init_type (TYPE_CODE_BOOL,
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TARGET_INT_BIT / TARGET_CHAR_BIT,
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||
TYPE_FLAG_UNSIGNED, "logical*4", objfile);
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||
break;
|
||
case FT_FIXED_DECIMAL:
|
||
type = init_type (TYPE_CODE_INT,
|
||
TARGET_INT_BIT / TARGET_CHAR_BIT,
|
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0, "fixed decimal", objfile);
|
||
break;
|
||
case FT_LONG:
|
||
type = init_type (TYPE_CODE_INT,
|
||
TARGET_LONG_BIT / TARGET_CHAR_BIT,
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0, "long", objfile);
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||
break;
|
||
case FT_SIGNED_LONG:
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type = init_type (TYPE_CODE_INT,
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||
TARGET_LONG_BIT / TARGET_CHAR_BIT,
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0, "long", objfile); /* FIXME -fnf */
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||
break;
|
||
case FT_UNSIGNED_LONG:
|
||
type = init_type (TYPE_CODE_INT,
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||
TARGET_LONG_BIT / TARGET_CHAR_BIT,
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TYPE_FLAG_UNSIGNED, "unsigned long", objfile);
|
||
break;
|
||
case FT_LONG_LONG:
|
||
type = init_type (TYPE_CODE_INT,
|
||
TARGET_LONG_LONG_BIT / TARGET_CHAR_BIT,
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||
0, "long long", objfile);
|
||
break;
|
||
case FT_SIGNED_LONG_LONG:
|
||
type = init_type (TYPE_CODE_INT,
|
||
TARGET_LONG_LONG_BIT / TARGET_CHAR_BIT,
|
||
0, "signed long long", objfile);
|
||
break;
|
||
case FT_UNSIGNED_LONG_LONG:
|
||
type = init_type (TYPE_CODE_INT,
|
||
TARGET_LONG_LONG_BIT / TARGET_CHAR_BIT,
|
||
TYPE_FLAG_UNSIGNED, "unsigned long long", objfile);
|
||
break;
|
||
case FT_FLOAT:
|
||
type = init_type (TYPE_CODE_FLT,
|
||
TARGET_FLOAT_BIT / TARGET_CHAR_BIT,
|
||
0, "real", objfile);
|
||
break;
|
||
case FT_DBL_PREC_FLOAT:
|
||
type = init_type (TYPE_CODE_FLT,
|
||
TARGET_DOUBLE_BIT / TARGET_CHAR_BIT,
|
||
0, "real*8", objfile);
|
||
break;
|
||
case FT_FLOAT_DECIMAL:
|
||
type = init_type (TYPE_CODE_FLT,
|
||
TARGET_DOUBLE_BIT / TARGET_CHAR_BIT,
|
||
0, "floating decimal", objfile);
|
||
break;
|
||
case FT_EXT_PREC_FLOAT:
|
||
type = init_type (TYPE_CODE_FLT,
|
||
TARGET_LONG_DOUBLE_BIT / TARGET_CHAR_BIT,
|
||
0, "real*16", objfile);
|
||
break;
|
||
case FT_COMPLEX:
|
||
type = init_type (TYPE_CODE_COMPLEX,
|
||
2 * TARGET_FLOAT_BIT / TARGET_CHAR_BIT,
|
||
0, "complex*8", objfile);
|
||
TYPE_TARGET_TYPE (type) = builtin_type_f_real;
|
||
break;
|
||
case FT_DBL_PREC_COMPLEX:
|
||
type = init_type (TYPE_CODE_COMPLEX,
|
||
2 * TARGET_DOUBLE_BIT / TARGET_CHAR_BIT,
|
||
0, "complex*16", objfile);
|
||
TYPE_TARGET_TYPE (type) = builtin_type_f_real_s8;
|
||
break;
|
||
case FT_EXT_PREC_COMPLEX:
|
||
type = init_type (TYPE_CODE_COMPLEX,
|
||
2 * TARGET_LONG_DOUBLE_BIT / TARGET_CHAR_BIT,
|
||
0, "complex*32", objfile);
|
||
TYPE_TARGET_TYPE (type) = builtin_type_f_real_s16;
|
||
break;
|
||
default:
|
||
/* FIXME: For now, if we are asked to produce a type not in this
|
||
language, create the equivalent of a C integer type with the
|
||
name "<?type?>". When all the dust settles from the type
|
||
reconstruction work, this should probably become an error. */
|
||
type = init_type (TYPE_CODE_INT,
|
||
TARGET_INT_BIT / TARGET_CHAR_BIT,
|
||
0, "<?type?>", objfile);
|
||
warning ("internal error: no F77 fundamental type %d", typeid);
|
||
break;
|
||
}
|
||
return (type);
|
||
}
|
||
|
||
|
||
/* Table of operators and their precedences for printing expressions. */
|
||
|
||
static const struct op_print f_op_print_tab[] = {
|
||
{ "+", BINOP_ADD, PREC_ADD, 0 },
|
||
{ "+", UNOP_PLUS, PREC_PREFIX, 0 },
|
||
{ "-", BINOP_SUB, PREC_ADD, 0 },
|
||
{ "-", UNOP_NEG, PREC_PREFIX, 0 },
|
||
{ "*", BINOP_MUL, PREC_MUL, 0 },
|
||
{ "/", BINOP_DIV, PREC_MUL, 0 },
|
||
{ "DIV", BINOP_INTDIV, PREC_MUL, 0 },
|
||
{ "MOD", BINOP_REM, PREC_MUL, 0 },
|
||
{ "=", BINOP_ASSIGN, PREC_ASSIGN, 1 },
|
||
{ ".OR.", BINOP_LOGICAL_OR, PREC_LOGICAL_OR, 0 },
|
||
{ ".AND.", BINOP_LOGICAL_AND, PREC_LOGICAL_AND, 0 },
|
||
{ ".NOT.", UNOP_LOGICAL_NOT, PREC_PREFIX, 0 },
|
||
{ ".EQ.", BINOP_EQUAL, PREC_EQUAL, 0 },
|
||
{ ".NE.", BINOP_NOTEQUAL, PREC_EQUAL, 0 },
|
||
{ ".LE.", BINOP_LEQ, PREC_ORDER, 0 },
|
||
{ ".GE.", BINOP_GEQ, PREC_ORDER, 0 },
|
||
{ ".GT.", BINOP_GTR, PREC_ORDER, 0 },
|
||
{ ".LT.", BINOP_LESS, PREC_ORDER, 0 },
|
||
{ "**", UNOP_IND, PREC_PREFIX, 0 },
|
||
{ "@", BINOP_REPEAT, PREC_REPEAT, 0 },
|
||
{ NULL, 0, 0, 0 }
|
||
};
|
||
|
||
struct type ** CONST_PTR (f_builtin_types[]) =
|
||
{
|
||
&builtin_type_f_character,
|
||
&builtin_type_f_logical,
|
||
&builtin_type_f_logical_s1,
|
||
&builtin_type_f_logical_s2,
|
||
&builtin_type_f_integer,
|
||
&builtin_type_f_integer_s2,
|
||
&builtin_type_f_real,
|
||
&builtin_type_f_real_s8,
|
||
&builtin_type_f_real_s16,
|
||
&builtin_type_f_complex_s8,
|
||
&builtin_type_f_complex_s16,
|
||
#if 0
|
||
&builtin_type_f_complex_s32,
|
||
#endif
|
||
&builtin_type_f_void,
|
||
0
|
||
};
|
||
|
||
/* This is declared in c-lang.h but it is silly to import that file for what
|
||
is already just a hack. */
|
||
extern int
|
||
c_value_print PARAMS ((struct value *, GDB_FILE *, int, enum val_prettyprint));
|
||
|
||
const struct language_defn f_language_defn = {
|
||
"fortran",
|
||
language_fortran,
|
||
f_builtin_types,
|
||
range_check_on,
|
||
type_check_on,
|
||
f_parse, /* parser */
|
||
f_error, /* parser error function */
|
||
evaluate_subexp_standard,
|
||
f_printchar, /* Print character constant */
|
||
f_printstr, /* function to print string constant */
|
||
f_create_fundamental_type, /* Create fundamental type in this language */
|
||
f_print_type, /* Print a type using appropriate syntax */
|
||
f_val_print, /* Print a value using appropriate syntax */
|
||
c_value_print, /* FIXME */
|
||
{"", "", "", ""}, /* Binary format info */
|
||
{"0%o", "0", "o", ""}, /* Octal format info */
|
||
{"%d", "", "d", ""}, /* Decimal format info */
|
||
{"0x%x", "0x", "x", ""}, /* Hex format info */
|
||
f_op_print_tab, /* expression operators for printing */
|
||
0, /* arrays are first-class (not c-style) */
|
||
1, /* String lower bound */
|
||
&builtin_type_f_character, /* Type of string elements */
|
||
LANG_MAGIC
|
||
};
|
||
|
||
void
|
||
_initialize_f_language ()
|
||
{
|
||
builtin_type_f_void =
|
||
init_type (TYPE_CODE_VOID, 1,
|
||
0,
|
||
"VOID", (struct objfile *) NULL);
|
||
|
||
builtin_type_f_character =
|
||
init_type (TYPE_CODE_INT, TARGET_CHAR_BIT / TARGET_CHAR_BIT,
|
||
0,
|
||
"character", (struct objfile *) NULL);
|
||
|
||
builtin_type_f_logical_s1 =
|
||
init_type (TYPE_CODE_BOOL, TARGET_CHAR_BIT / TARGET_CHAR_BIT,
|
||
TYPE_FLAG_UNSIGNED,
|
||
"logical*1", (struct objfile *) NULL);
|
||
|
||
builtin_type_f_integer_s2 =
|
||
init_type (TYPE_CODE_INT, TARGET_SHORT_BIT / TARGET_CHAR_BIT,
|
||
0,
|
||
"integer*2", (struct objfile *) NULL);
|
||
|
||
builtin_type_f_logical_s2 =
|
||
init_type (TYPE_CODE_BOOL, TARGET_SHORT_BIT / TARGET_CHAR_BIT,
|
||
TYPE_FLAG_UNSIGNED,
|
||
"logical*2", (struct objfile *) NULL);
|
||
|
||
builtin_type_f_integer =
|
||
init_type (TYPE_CODE_INT, TARGET_INT_BIT / TARGET_CHAR_BIT,
|
||
0,
|
||
"integer", (struct objfile *) NULL);
|
||
|
||
builtin_type_f_logical =
|
||
init_type (TYPE_CODE_BOOL, TARGET_INT_BIT / TARGET_CHAR_BIT,
|
||
TYPE_FLAG_UNSIGNED,
|
||
"logical*4", (struct objfile *) NULL);
|
||
|
||
builtin_type_f_real =
|
||
init_type (TYPE_CODE_FLT, TARGET_FLOAT_BIT / TARGET_CHAR_BIT,
|
||
0,
|
||
"real", (struct objfile *) NULL);
|
||
|
||
builtin_type_f_real_s8 =
|
||
init_type (TYPE_CODE_FLT, TARGET_DOUBLE_BIT / TARGET_CHAR_BIT,
|
||
0,
|
||
"real*8", (struct objfile *) NULL);
|
||
|
||
builtin_type_f_real_s16 =
|
||
init_type (TYPE_CODE_FLT, TARGET_LONG_DOUBLE_BIT / TARGET_CHAR_BIT,
|
||
0,
|
||
"real*16", (struct objfile *) NULL);
|
||
|
||
builtin_type_f_complex_s8 =
|
||
init_type (TYPE_CODE_COMPLEX, 2 * TARGET_FLOAT_BIT / TARGET_CHAR_BIT,
|
||
0,
|
||
"complex*8", (struct objfile *) NULL);
|
||
TYPE_TARGET_TYPE (builtin_type_f_complex_s8) = builtin_type_f_real;
|
||
|
||
builtin_type_f_complex_s16 =
|
||
init_type (TYPE_CODE_COMPLEX, 2 * TARGET_DOUBLE_BIT / TARGET_CHAR_BIT,
|
||
0,
|
||
"complex*16", (struct objfile *) NULL);
|
||
TYPE_TARGET_TYPE (builtin_type_f_complex_s16) = builtin_type_f_real_s8;
|
||
|
||
/* We have a new size == 4 double floats for the
|
||
complex*32 data type */
|
||
|
||
builtin_type_f_complex_s32 =
|
||
init_type (TYPE_CODE_COMPLEX, 2 * TARGET_LONG_DOUBLE_BIT / TARGET_CHAR_BIT,
|
||
0,
|
||
"complex*32", (struct objfile *) NULL);
|
||
TYPE_TARGET_TYPE (builtin_type_f_complex_s32) = builtin_type_f_real_s16;
|
||
|
||
builtin_type_string =
|
||
init_type (TYPE_CODE_STRING, TARGET_CHAR_BIT / TARGET_CHAR_BIT,
|
||
0,
|
||
"character string", (struct objfile *) NULL);
|
||
|
||
add_language (&f_language_defn);
|
||
}
|
||
|
||
#if 0
|
||
static SAVED_BF_PTR
|
||
allocate_saved_bf_node()
|
||
{
|
||
SAVED_BF_PTR new;
|
||
|
||
new = (SAVED_BF_PTR) xmalloc (sizeof (SAVED_BF));
|
||
return(new);
|
||
}
|
||
|
||
static SAVED_FUNCTION *
|
||
allocate_saved_function_node()
|
||
{
|
||
SAVED_FUNCTION *new;
|
||
|
||
new = (SAVED_FUNCTION *) xmalloc (sizeof (SAVED_FUNCTION));
|
||
return(new);
|
||
}
|
||
|
||
static SAVED_F77_COMMON_PTR allocate_saved_f77_common_node()
|
||
{
|
||
SAVED_F77_COMMON_PTR new;
|
||
|
||
new = (SAVED_F77_COMMON_PTR) xmalloc (sizeof (SAVED_F77_COMMON));
|
||
return(new);
|
||
}
|
||
|
||
static COMMON_ENTRY_PTR allocate_common_entry_node()
|
||
{
|
||
COMMON_ENTRY_PTR new;
|
||
|
||
new = (COMMON_ENTRY_PTR) xmalloc (sizeof (COMMON_ENTRY));
|
||
return(new);
|
||
}
|
||
#endif
|
||
|
||
SAVED_F77_COMMON_PTR head_common_list=NULL; /* Ptr to 1st saved COMMON */
|
||
SAVED_F77_COMMON_PTR tail_common_list=NULL; /* Ptr to last saved COMMON */
|
||
SAVED_F77_COMMON_PTR current_common=NULL; /* Ptr to current COMMON */
|
||
|
||
#if 0
|
||
static SAVED_BF_PTR saved_bf_list=NULL; /* Ptr to (.bf,function)
|
||
list*/
|
||
static SAVED_BF_PTR saved_bf_list_end=NULL; /* Ptr to above list's end */
|
||
static SAVED_BF_PTR current_head_bf_list=NULL; /* Current head of above list
|
||
*/
|
||
|
||
static SAVED_BF_PTR tmp_bf_ptr; /* Generic temporary for use
|
||
in macros */
|
||
|
||
/* The following function simply enters a given common block onto
|
||
the global common block chain */
|
||
|
||
static void
|
||
add_common_block(name,offset,secnum,func_stab)
|
||
char *name;
|
||
CORE_ADDR offset;
|
||
int secnum;
|
||
char *func_stab;
|
||
{
|
||
SAVED_F77_COMMON_PTR tmp;
|
||
char *c,*local_copy_func_stab;
|
||
|
||
/* If the COMMON block we are trying to add has a blank
|
||
name (i.e. "#BLNK_COM") then we set it to __BLANK
|
||
because the darn "#" character makes GDB's input
|
||
parser have fits. */
|
||
|
||
|
||
if (STREQ(name,BLANK_COMMON_NAME_ORIGINAL) ||
|
||
STREQ(name,BLANK_COMMON_NAME_MF77))
|
||
{
|
||
|
||
free(name);
|
||
name = alloca(strlen(BLANK_COMMON_NAME_LOCAL) + 1);
|
||
strcpy(name,BLANK_COMMON_NAME_LOCAL);
|
||
}
|
||
|
||
tmp = allocate_saved_f77_common_node();
|
||
|
||
local_copy_func_stab = xmalloc (strlen(func_stab) + 1);
|
||
strcpy(local_copy_func_stab,func_stab);
|
||
|
||
tmp->name = xmalloc(strlen(name) + 1);
|
||
|
||
/* local_copy_func_stab is a stabstring, let us first extract the
|
||
function name from the stab by NULLing out the ':' character. */
|
||
|
||
|
||
c = NULL;
|
||
c = strchr(local_copy_func_stab,':');
|
||
|
||
if (c)
|
||
*c = '\0';
|
||
else
|
||
error("Malformed function STAB found in add_common_block()");
|
||
|
||
|
||
tmp->owning_function = xmalloc (strlen(local_copy_func_stab) + 1);
|
||
|
||
strcpy(tmp->owning_function,local_copy_func_stab);
|
||
|
||
strcpy(tmp->name,name);
|
||
tmp->offset = offset;
|
||
tmp->next = NULL;
|
||
tmp->entries = NULL;
|
||
tmp->secnum = secnum;
|
||
|
||
current_common = tmp;
|
||
|
||
if (head_common_list == NULL)
|
||
{
|
||
head_common_list = tail_common_list = tmp;
|
||
}
|
||
else
|
||
{
|
||
tail_common_list->next = tmp;
|
||
tail_common_list = tmp;
|
||
}
|
||
}
|
||
#endif
|
||
|
||
/* The following function simply enters a given common entry onto
|
||
the "current_common" block that has been saved away. */
|
||
|
||
#if 0
|
||
static void
|
||
add_common_entry(entry_sym_ptr)
|
||
struct symbol *entry_sym_ptr;
|
||
{
|
||
COMMON_ENTRY_PTR tmp;
|
||
|
||
|
||
|
||
/* The order of this list is important, since
|
||
we expect the entries to appear in decl.
|
||
order when we later issue "info common" calls */
|
||
|
||
tmp = allocate_common_entry_node();
|
||
|
||
tmp->next = NULL;
|
||
tmp->symbol = entry_sym_ptr;
|
||
|
||
if (current_common == NULL)
|
||
error("Attempt to add COMMON entry with no block open!");
|
||
else
|
||
{
|
||
if (current_common->entries == NULL)
|
||
{
|
||
current_common->entries = tmp;
|
||
current_common->end_of_entries = tmp;
|
||
}
|
||
else
|
||
{
|
||
current_common->end_of_entries->next = tmp;
|
||
current_common->end_of_entries = tmp;
|
||
}
|
||
}
|
||
}
|
||
#endif
|
||
|
||
/* This routine finds the first encountred COMMON block named "name" */
|
||
|
||
#if 0
|
||
static SAVED_F77_COMMON_PTR
|
||
find_first_common_named(name)
|
||
char *name;
|
||
{
|
||
|
||
SAVED_F77_COMMON_PTR tmp;
|
||
|
||
tmp = head_common_list;
|
||
|
||
while (tmp != NULL)
|
||
{
|
||
if (STREQ(tmp->name,name))
|
||
return(tmp);
|
||
else
|
||
tmp = tmp->next;
|
||
}
|
||
return(NULL);
|
||
}
|
||
#endif
|
||
|
||
/* This routine finds the first encountred COMMON block named "name"
|
||
that belongs to function funcname */
|
||
|
||
SAVED_F77_COMMON_PTR find_common_for_function(name, funcname)
|
||
char *name;
|
||
char *funcname;
|
||
{
|
||
|
||
SAVED_F77_COMMON_PTR tmp;
|
||
|
||
tmp = head_common_list;
|
||
|
||
while (tmp != NULL)
|
||
{
|
||
if (STREQ(tmp->name,name) && STREQ(tmp->owning_function,funcname))
|
||
return(tmp);
|
||
else
|
||
tmp = tmp->next;
|
||
}
|
||
return(NULL);
|
||
}
|
||
|
||
|
||
#if 0
|
||
|
||
/* The following function is called to patch up the offsets
|
||
for the statics contained in the COMMON block named
|
||
"name." */
|
||
|
||
static void
|
||
patch_common_entries (blk, offset, secnum)
|
||
SAVED_F77_COMMON_PTR blk;
|
||
CORE_ADDR offset;
|
||
int secnum;
|
||
{
|
||
COMMON_ENTRY_PTR entry;
|
||
|
||
blk->offset = offset; /* Keep this around for future use. */
|
||
|
||
entry = blk->entries;
|
||
|
||
while (entry != NULL)
|
||
{
|
||
SYMBOL_VALUE (entry->symbol) += offset;
|
||
SYMBOL_SECTION (entry->symbol) = secnum;
|
||
|
||
entry = entry->next;
|
||
}
|
||
blk->secnum = secnum;
|
||
}
|
||
|
||
/* Patch all commons named "name" that need patching.Since COMMON
|
||
blocks occur with relative infrequency, we simply do a linear scan on
|
||
the name. Eventually, the best way to do this will be a
|
||
hashed-lookup. Secnum is the section number for the .bss section
|
||
(which is where common data lives). */
|
||
|
||
static void
|
||
patch_all_commons_by_name (name, offset, secnum)
|
||
char *name;
|
||
CORE_ADDR offset;
|
||
int secnum;
|
||
{
|
||
|
||
SAVED_F77_COMMON_PTR tmp;
|
||
|
||
/* For blank common blocks, change the canonical reprsentation
|
||
of a blank name */
|
||
|
||
if ((STREQ(name,BLANK_COMMON_NAME_ORIGINAL)) ||
|
||
(STREQ(name,BLANK_COMMON_NAME_MF77)))
|
||
{
|
||
free(name);
|
||
name = alloca(strlen(BLANK_COMMON_NAME_LOCAL) + 1);
|
||
strcpy(name,BLANK_COMMON_NAME_LOCAL);
|
||
}
|
||
|
||
tmp = head_common_list;
|
||
|
||
while (tmp != NULL)
|
||
{
|
||
if (COMMON_NEEDS_PATCHING(tmp))
|
||
if (STREQ(tmp->name,name))
|
||
patch_common_entries(tmp,offset,secnum);
|
||
|
||
tmp = tmp->next;
|
||
}
|
||
}
|
||
#endif
|
||
|
||
/* This macro adds the symbol-number for the start of the function
|
||
(the symbol number of the .bf) referenced by symnum_fcn to a
|
||
list. This list, in reality should be a FIFO queue but since
|
||
#line pragmas sometimes cause line ranges to get messed up
|
||
we simply create a linear list. This list can then be searched
|
||
first by a queueing algorithm and upon failure fall back to
|
||
a linear scan. */
|
||
|
||
#if 0
|
||
#define ADD_BF_SYMNUM(bf_sym,fcn_sym) \
|
||
\
|
||
if (saved_bf_list == NULL) \
|
||
{ \
|
||
tmp_bf_ptr = allocate_saved_bf_node(); \
|
||
\
|
||
tmp_bf_ptr->symnum_bf = (bf_sym); \
|
||
tmp_bf_ptr->symnum_fcn = (fcn_sym); \
|
||
tmp_bf_ptr->next = NULL; \
|
||
\
|
||
current_head_bf_list = saved_bf_list = tmp_bf_ptr; \
|
||
saved_bf_list_end = tmp_bf_ptr; \
|
||
} \
|
||
else \
|
||
{ \
|
||
tmp_bf_ptr = allocate_saved_bf_node(); \
|
||
\
|
||
tmp_bf_ptr->symnum_bf = (bf_sym); \
|
||
tmp_bf_ptr->symnum_fcn = (fcn_sym); \
|
||
tmp_bf_ptr->next = NULL; \
|
||
\
|
||
saved_bf_list_end->next = tmp_bf_ptr; \
|
||
saved_bf_list_end = tmp_bf_ptr; \
|
||
}
|
||
#endif
|
||
|
||
/* This function frees the entire (.bf,function) list */
|
||
|
||
#if 0
|
||
static void
|
||
clear_bf_list()
|
||
{
|
||
|
||
SAVED_BF_PTR tmp = saved_bf_list;
|
||
SAVED_BF_PTR next = NULL;
|
||
|
||
while (tmp != NULL)
|
||
{
|
||
next = tmp->next;
|
||
free(tmp);
|
||
tmp=next;
|
||
}
|
||
saved_bf_list = NULL;
|
||
}
|
||
#endif
|
||
|
||
int global_remote_debug;
|
||
|
||
#if 0
|
||
|
||
static long
|
||
get_bf_for_fcn (the_function)
|
||
long the_function;
|
||
{
|
||
SAVED_BF_PTR tmp;
|
||
int nprobes = 0;
|
||
|
||
/* First use a simple queuing algorithm (i.e. look and see if the
|
||
item at the head of the queue is the one you want) */
|
||
|
||
if (saved_bf_list == NULL)
|
||
fatal ("cannot get .bf node off empty list");
|
||
|
||
if (current_head_bf_list != NULL)
|
||
if (current_head_bf_list->symnum_fcn == the_function)
|
||
{
|
||
if (global_remote_debug)
|
||
fprintf(stderr,"*");
|
||
|
||
tmp = current_head_bf_list;
|
||
current_head_bf_list = current_head_bf_list->next;
|
||
return(tmp->symnum_bf);
|
||
}
|
||
|
||
/* If the above did not work (probably because #line directives were
|
||
used in the sourcefile and they messed up our internal tables) we now do
|
||
the ugly linear scan */
|
||
|
||
if (global_remote_debug)
|
||
fprintf(stderr,"\ndefaulting to linear scan\n");
|
||
|
||
nprobes = 0;
|
||
tmp = saved_bf_list;
|
||
while (tmp != NULL)
|
||
{
|
||
nprobes++;
|
||
if (tmp->symnum_fcn == the_function)
|
||
{
|
||
if (global_remote_debug)
|
||
fprintf(stderr,"Found in %d probes\n",nprobes);
|
||
current_head_bf_list = tmp->next;
|
||
return(tmp->symnum_bf);
|
||
}
|
||
tmp= tmp->next;
|
||
}
|
||
|
||
return(-1);
|
||
}
|
||
|
||
static SAVED_FUNCTION_PTR saved_function_list=NULL;
|
||
static SAVED_FUNCTION_PTR saved_function_list_end=NULL;
|
||
|
||
static void
|
||
clear_function_list()
|
||
{
|
||
SAVED_FUNCTION_PTR tmp = saved_function_list;
|
||
SAVED_FUNCTION_PTR next = NULL;
|
||
|
||
while (tmp != NULL)
|
||
{
|
||
next = tmp->next;
|
||
free(tmp);
|
||
tmp = next;
|
||
}
|
||
|
||
saved_function_list = NULL;
|
||
}
|
||
#endif
|
||
|