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NetBSD/gnu/dist/toolchain/gdb/f-lang.c

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Import of gdb 5.0 into new gnu/dist/toolchain layout.
2000-07-26 04:32:27 +04:00
/* Fortran language support routines for GDB, the GNU debugger.
Copyright 1993, 1994, 1996, 2000 Free Software Foundation, Inc.
Contributed by Motorola. Adapted from the C parser by Farooq Butt
(fmbutt@engage.sps.mot.com).
This file is part of GDB.
This program is free software; you can redistribute it and/or modify
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.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA. */
#include "defs.h"
#include "gdb_string.h"
#include "symtab.h"
#include "gdbtypes.h"
#include "expression.h"
#include "parser-defs.h"
#include "language.h"
#include "f-lang.h"
#include "valprint.h"
/* The built-in types of F77. FIXME: integer*4 is missing, plain
logical is missing (builtin_type_logical is logical*4). */
struct type *builtin_type_f_character;
struct type *builtin_type_f_logical;
struct type *builtin_type_f_logical_s1;
struct type *builtin_type_f_logical_s2;
struct type *builtin_type_f_integer;
struct type *builtin_type_f_integer_s2;
struct type *builtin_type_f_real;
struct type *builtin_type_f_real_s8;
struct type *builtin_type_f_real_s16;
struct type *builtin_type_f_complex_s8;
struct type *builtin_type_f_complex_s16;
struct type *builtin_type_f_complex_s32;
struct type *builtin_type_f_void;
/* Following is dubious stuff that had been in the xcoff reader. */
struct saved_fcn
{
long line_offset; /* Line offset for function */
struct saved_fcn *next;
};
struct saved_bf_symnum
{
long symnum_fcn; /* Symnum of function (i.e. .function directive) */
long symnum_bf; /* Symnum of .bf for this function */
struct saved_bf_symnum *next;
};
typedef struct saved_fcn SAVED_FUNCTION, *SAVED_FUNCTION_PTR;
typedef struct saved_bf_symnum SAVED_BF, *SAVED_BF_PTR;
/* Local functions */
extern void _initialize_f_language PARAMS ((void));
#if 0
static void clear_function_list PARAMS ((void));
static long get_bf_for_fcn PARAMS ((long));
static void clear_bf_list PARAMS ((void));
static void patch_all_commons_by_name PARAMS ((char *, CORE_ADDR, int));
static SAVED_F77_COMMON_PTR find_first_common_named PARAMS ((char *));
static void add_common_entry PARAMS ((struct symbol *));
static void add_common_block PARAMS ((char *, CORE_ADDR, int, char *));
static SAVED_FUNCTION *allocate_saved_function_node PARAMS ((void));
static SAVED_BF_PTR allocate_saved_bf_node PARAMS ((void));
static COMMON_ENTRY_PTR allocate_common_entry_node PARAMS ((void));
static SAVED_F77_COMMON_PTR allocate_saved_f77_common_node PARAMS ((void));
static void patch_common_entries PARAMS ((SAVED_F77_COMMON_PTR, CORE_ADDR, int));
#endif
static struct type *f_create_fundamental_type PARAMS ((struct objfile *, int));
static void f_printstr (struct ui_file * stream, char *string,
unsigned int length, int width,
int force_ellipses);
static void f_printchar (int c, struct ui_file * stream);
static void f_emit_char (int c, struct ui_file * stream, int quoter);
/* Print the character C on STREAM as part of the contents of a literal
string whose delimiter is QUOTER. Note that that format for printing
characters and strings is language specific.
FIXME: This is a copy of the same function from c-exp.y. It should
be replaced with a true F77 version. */
static void
f_emit_char (c, stream, quoter)
register int c;
struct ui_file *stream;
int quoter;
{
c &= 0xFF; /* Avoid sign bit follies */
if (PRINT_LITERAL_FORM (c))
{
if (c == '\\' || c == quoter)
fputs_filtered ("\\", stream);
fprintf_filtered (stream, "%c", c);
}
else
{
switch (c)
{
case '\n':
fputs_filtered ("\\n", stream);
break;
case '\b':
fputs_filtered ("\\b", stream);
break;
case '\t':
fputs_filtered ("\\t", stream);
break;
case '\f':
fputs_filtered ("\\f", stream);
break;
case '\r':
fputs_filtered ("\\r", stream);
break;
case '\033':
fputs_filtered ("\\e", stream);
break;
case '\007':
fputs_filtered ("\\a", stream);
break;
default:
fprintf_filtered (stream, "\\%.3o", (unsigned int) c);
break;
}
}
}
/* FIXME: This is a copy of the same function from c-exp.y. It should
be replaced with a true F77version. */
static void
f_printchar (c, stream)
int c;
struct ui_file *stream;
{
fputs_filtered ("'", stream);
LA_EMIT_CHAR (c, stream, '\'');
fputs_filtered ("'", stream);
}
/* Print the character string STRING, printing at most LENGTH characters.
Printing stops early if the number hits print_max; repeat counts
are printed as appropriate. Print ellipses at the end if we
had to stop before printing LENGTH characters, or if FORCE_ELLIPSES.
FIXME: This is a copy of the same function from c-exp.y. It should
be replaced with a true F77 version. */
static void
f_printstr (stream, string, length, width, force_ellipses)
struct ui_file *stream;
char *string;
unsigned int length;
int width;
int force_ellipses;
{
register unsigned int i;
unsigned int things_printed = 0;
int in_quotes = 0;
int need_comma = 0;
extern int inspect_it;
if (length == 0)
{
fputs_filtered ("''", gdb_stdout);
return;
}
for (i = 0; i < length && things_printed < print_max; ++i)
{
/* Position of the character we are examining
to see whether it is repeated. */
unsigned int rep1;
/* Number of repetitions we have detected so far. */
unsigned int reps;
QUIT;
if (need_comma)
{
fputs_filtered (", ", stream);
need_comma = 0;
}
rep1 = i + 1;
reps = 1;
while (rep1 < length && string[rep1] == string[i])
{
++rep1;
++reps;
}
if (reps > repeat_count_threshold)
{
if (in_quotes)
{
if (inspect_it)
fputs_filtered ("\\', ", stream);
else
fputs_filtered ("', ", stream);
in_quotes = 0;
}
f_printchar (string[i], stream);
fprintf_filtered (stream, " <repeats %u times>", reps);
i = rep1 - 1;
things_printed += repeat_count_threshold;
need_comma = 1;
}
else
{
if (!in_quotes)
{
if (inspect_it)
fputs_filtered ("\\'", stream);
else
fputs_filtered ("'", stream);
in_quotes = 1;
}
LA_EMIT_CHAR (string[i], stream, '"');
++things_printed;
}
}
/* Terminate the quotes if necessary. */
if (in_quotes)
{
if (inspect_it)
fputs_filtered ("\\'", stream);
else
fputs_filtered ("'", stream);
}
if (force_ellipses || i < length)
fputs_filtered ("...", stream);
}
/* FIXME: This is a copy of c_create_fundamental_type(), before
all the non-C types were stripped from it. Needs to be fixed
by an experienced F77 programmer. */
static struct type *
f_create_fundamental_type (objfile, typeid)
struct objfile *objfile;
int typeid;
{
register struct type *type = NULL;
switch (typeid)
{
case FT_VOID:
type = init_type (TYPE_CODE_VOID,
TARGET_CHAR_BIT / TARGET_CHAR_BIT,
0, "VOID", objfile);
break;
case FT_BOOLEAN:
type = init_type (TYPE_CODE_BOOL,
TARGET_CHAR_BIT / TARGET_CHAR_BIT,
TYPE_FLAG_UNSIGNED, "boolean", objfile);
break;
case FT_STRING:
type = init_type (TYPE_CODE_STRING,
TARGET_CHAR_BIT / TARGET_CHAR_BIT,
0, "string", objfile);
break;
case FT_CHAR:
type = init_type (TYPE_CODE_INT,
TARGET_CHAR_BIT / TARGET_CHAR_BIT,
0, "character", objfile);
break;
case FT_SIGNED_CHAR:
type = init_type (TYPE_CODE_INT,
TARGET_CHAR_BIT / TARGET_CHAR_BIT,
0, "integer*1", objfile);
break;
case FT_UNSIGNED_CHAR:
type = init_type (TYPE_CODE_BOOL,
TARGET_CHAR_BIT / TARGET_CHAR_BIT,
TYPE_FLAG_UNSIGNED, "logical*1", objfile);
break;
case FT_SHORT:
type = init_type (TYPE_CODE_INT,
TARGET_SHORT_BIT / TARGET_CHAR_BIT,
0, "integer*2", objfile);
break;
case FT_SIGNED_SHORT:
type = init_type (TYPE_CODE_INT,
TARGET_SHORT_BIT / TARGET_CHAR_BIT,
0, "short", objfile); /* FIXME-fnf */
break;
case FT_UNSIGNED_SHORT:
type = init_type (TYPE_CODE_BOOL,
TARGET_SHORT_BIT / TARGET_CHAR_BIT,
TYPE_FLAG_UNSIGNED, "logical*2", objfile);
break;
case FT_INTEGER:
type = init_type (TYPE_CODE_INT,
TARGET_INT_BIT / TARGET_CHAR_BIT,
0, "integer*4", objfile);
break;
case FT_SIGNED_INTEGER:
type = init_type (TYPE_CODE_INT,
TARGET_INT_BIT / TARGET_CHAR_BIT,
0, "integer", objfile); /* FIXME -fnf */
break;
case FT_UNSIGNED_INTEGER:
type = init_type (TYPE_CODE_BOOL,
TARGET_INT_BIT / TARGET_CHAR_BIT,
TYPE_FLAG_UNSIGNED, "logical*4", objfile);
break;
case FT_FIXED_DECIMAL:
type = init_type (TYPE_CODE_INT,
TARGET_INT_BIT / TARGET_CHAR_BIT,
0, "fixed decimal", objfile);
break;
case FT_LONG:
type = init_type (TYPE_CODE_INT,
TARGET_LONG_BIT / TARGET_CHAR_BIT,
0, "long", objfile);
break;
case FT_SIGNED_LONG:
type = init_type (TYPE_CODE_INT,
TARGET_LONG_BIT / TARGET_CHAR_BIT,
0, "long", objfile); /* FIXME -fnf */
break;
case FT_UNSIGNED_LONG:
type = init_type (TYPE_CODE_INT,
TARGET_LONG_BIT / TARGET_CHAR_BIT,
TYPE_FLAG_UNSIGNED, "unsigned long", objfile);
break;
case FT_LONG_LONG:
type = init_type (TYPE_CODE_INT,
TARGET_LONG_LONG_BIT / TARGET_CHAR_BIT,
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 (struct value *, struct ui_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_emit_char, /* Function to print a single character */
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)
internal_error ("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
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