/* stabs.c -- Parse COFF debugging information
- Copyright (C) 1996 Free Software Foundation, Inc.
+ Copyright (C) 1996-2020 Free Software Foundation, Inc.
Written by Ian Lance Taylor <ian@cygnus.com>.
This file is part of GNU Binutils.
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
+ the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
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. */
+ Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA
+ 02110-1301, USA. */
/* This file contains code which parses COFF debugging information. */
+#include "sysdep.h"
#include "bfd.h"
#include "coff/internal.h"
-#include "bucomm.h"
#include "libiberty.h"
-#include "demangle.h"
+#include "bucomm.h"
#include "debug.h"
#include "budbg.h"
debug_type basic[T_MAX + 1];
};
-static debug_type *coff_get_slot PARAMS ((struct coff_types *, int));
+static debug_type *coff_get_slot (struct coff_types *, long);
static debug_type parse_coff_type
- PARAMS ((bfd *, struct coff_symbols *, struct coff_types *, long, int,
- union internal_auxent *, boolean, PTR));
+ (bfd *, struct coff_symbols *, struct coff_types *, long, int,
+ union internal_auxent *, bfd_boolean, void *);
static debug_type parse_coff_base_type
- PARAMS ((bfd *, struct coff_symbols *, struct coff_types *, long, int,
- union internal_auxent *, PTR));
+ (bfd *, struct coff_symbols *, struct coff_types *, long, int,
+ union internal_auxent *, void *);
static debug_type parse_coff_struct_type
- PARAMS ((bfd *, struct coff_symbols *, struct coff_types *, int,
- union internal_auxent *, PTR));
+ (bfd *, struct coff_symbols *, struct coff_types *, int,
+ union internal_auxent *, void *);
static debug_type parse_coff_enum_type
- PARAMS ((bfd *, struct coff_symbols *, struct coff_types *,
- union internal_auxent *, PTR));
-static boolean parse_coff_symbol
- PARAMS ((bfd *, struct coff_types *, asymbol *, long,
- struct internal_syment *, PTR, debug_type, boolean));
+ (bfd *, struct coff_symbols *, struct coff_types *,
+ union internal_auxent *, void *);
+static bfd_boolean parse_coff_symbol
+ (bfd *, struct coff_types *, asymbol *, long, struct internal_syment *,
+ void *, debug_type, bfd_boolean);
+static bfd_boolean external_coff_symbol_p (int sym_class);
\f
/* Return the slot for a type. */
static debug_type *
-coff_get_slot (types, indx)
- struct coff_types *types;
- int indx;
+coff_get_slot (struct coff_types *types, long indx)
{
struct coff_slots **pps;
pps = &types->slots;
+ /* PR 17512: file: 078-18333-0.001:0.1.
+ FIXME: The value of 1000 is a guess. Maybe a better heuristic is needed. */
+ if (indx / COFF_SLOTS > 1000)
+ fatal (_("Excessively large slot index: %lx"), indx);
+
while (indx >= COFF_SLOTS)
{
if (*pps == NULL)
/* Parse a COFF type code in NTYPE. */
static debug_type
-parse_coff_type (abfd, symbols, types, coff_symno, ntype, pauxent, useaux,
- dhandle)
- bfd *abfd;
- struct coff_symbols *symbols;
- struct coff_types *types;
- long coff_symno;
- int ntype;
- union internal_auxent *pauxent;
- boolean useaux;
- PTR dhandle;
+parse_coff_type (bfd *abfd, struct coff_symbols *symbols,
+ struct coff_types *types, long coff_symno, int ntype,
+ union internal_auxent *pauxent, bfd_boolean useaux,
+ void *dhandle)
{
debug_type type;
type = parse_coff_type (abfd, symbols, types, coff_symno, newtype,
pauxent, useaux, dhandle);
type = debug_make_function_type (dhandle, type, (debug_type *) NULL,
- false);
+ FALSE);
}
else if (ISARY (ntype))
{
}
type = parse_coff_type (abfd, symbols, types, coff_symno, newtype,
- pauxent, false, dhandle);
+ pauxent, FALSE, dhandle);
type = debug_make_array_type (dhandle, type,
parse_coff_base_type (abfd, symbols,
types,
coff_symno,
T_INT,
NULL, dhandle),
- 0, n - 1, false);
+ 0, n - 1, FALSE);
+ }
+ else
+ {
+ non_fatal (_("parse_coff_type: Bad type code 0x%x"), ntype);
+ return DEBUG_TYPE_NULL;
}
return type;
/* Parse a basic COFF type in NTYPE. */
static debug_type
-parse_coff_base_type (abfd, symbols, types, coff_symno, ntype, pauxent,
- dhandle)
- bfd *abfd;
- struct coff_symbols *symbols;
- struct coff_types *types;
- long coff_symno;
- int ntype;
- union internal_auxent *pauxent;
- PTR dhandle;
+parse_coff_base_type (bfd *abfd, struct coff_symbols *symbols,
+ struct coff_types *types, long coff_symno, int ntype,
+ union internal_auxent *pauxent, void *dhandle)
{
debug_type ret;
- boolean set_basic;
+ bfd_boolean set_basic;
const char *name;
debug_type *slot;
&& types->basic[ntype] != DEBUG_TYPE_NULL)
return types->basic[ntype];
- set_basic = true;
+ set_basic = TRUE;
name = NULL;
switch (ntype)
break;
case T_CHAR:
- ret = debug_make_int_type (dhandle, 1, false);
+ ret = debug_make_int_type (dhandle, 1, FALSE);
name = "char";
break;
case T_SHORT:
- ret = debug_make_int_type (dhandle, 2, false);
+ ret = debug_make_int_type (dhandle, 2, FALSE);
name = "short";
break;
case T_INT:
/* FIXME: Perhaps the size should depend upon the architecture. */
- ret = debug_make_int_type (dhandle, 4, false);
+ ret = debug_make_int_type (dhandle, 4, FALSE);
name = "int";
break;
case T_LONG:
- ret = debug_make_int_type (dhandle, 4, false);
+ ret = debug_make_int_type (dhandle, 4, FALSE);
name = "long";
break;
break;
case T_UCHAR:
- ret = debug_make_int_type (dhandle, 1, true);
+ ret = debug_make_int_type (dhandle, 1, TRUE);
name = "unsigned char";
break;
case T_USHORT:
- ret = debug_make_int_type (dhandle, 2, true);
+ ret = debug_make_int_type (dhandle, 2, TRUE);
name = "unsigned short";
break;
case T_UINT:
- ret = debug_make_int_type (dhandle, 4, true);
+ ret = debug_make_int_type (dhandle, 4, TRUE);
name = "unsigned int";
break;
case T_ULONG:
- ret = debug_make_int_type (dhandle, 4, true);
+ ret = debug_make_int_type (dhandle, 4, TRUE);
name = "unsigned long";
break;
case T_STRUCT:
if (pauxent == NULL)
- ret = debug_make_struct_type (dhandle, true, 0,
+ ret = debug_make_struct_type (dhandle, TRUE, 0,
(debug_field *) NULL);
else
ret = parse_coff_struct_type (abfd, symbols, types, ntype, pauxent,
slot = coff_get_slot (types, coff_symno);
*slot = ret;
- set_basic = false;
+ set_basic = FALSE;
break;
case T_UNION:
if (pauxent == NULL)
- ret = debug_make_struct_type (dhandle, false, 0, (debug_field *) NULL);
+ ret = debug_make_struct_type (dhandle, FALSE, 0, (debug_field *) NULL);
else
ret = parse_coff_struct_type (abfd, symbols, types, ntype, pauxent,
dhandle);
slot = coff_get_slot (types, coff_symno);
*slot = ret;
- set_basic = false;
+ set_basic = FALSE;
break;
case T_ENUM:
slot = coff_get_slot (types, coff_symno);
*slot = ret;
- set_basic = false;
+ set_basic = FALSE;
break;
}
/* Parse a struct type. */
static debug_type
-parse_coff_struct_type (abfd, symbols, types, ntype, pauxent, dhandle)
- bfd *abfd;
- struct coff_symbols *symbols;
- struct coff_types *types;
- int ntype;
- union internal_auxent *pauxent;
- PTR dhandle;
+parse_coff_struct_type (bfd *abfd, struct coff_symbols *symbols,
+ struct coff_types *types, int ntype,
+ union internal_auxent *pauxent, void *dhandle)
{
long symend;
int alloc;
debug_field *fields;
int count;
- boolean done;
+ bfd_boolean done;
symend = pauxent->x_sym.x_fcnary.x_fcn.x_endndx.l;
fields = (debug_field *) xmalloc (alloc * sizeof *fields);
count = 0;
- done = false;
+ done = FALSE;
while (! done
&& symbols->coff_symno < symend
&& symbols->symno < symbols->symcount)
if (! bfd_coff_get_syment (abfd, sym, &syment))
{
- fprintf (stderr, "%s: bfd_coff_get_syment failed: %s\n",
- program_name, bfd_errmsg (bfd_get_error ()));
+ non_fatal (_("bfd_coff_get_syment failed: %s"),
+ bfd_errmsg (bfd_get_error ()));
+ free (fields);
return DEBUG_TYPE_NULL;
}
{
if (! bfd_coff_get_auxent (abfd, sym, 0, &auxent))
{
- fprintf (stderr, "%s: bfd_coff_get_auxent failed: %s\n",
- program_name, bfd_errmsg (bfd_get_error ()));
+ non_fatal (_("bfd_coff_get_auxent failed: %s"),
+ bfd_errmsg (bfd_get_error ()));
+ free (fields);
return DEBUG_TYPE_NULL;
}
psubaux = &auxent;
break;
case C_EOS:
- done = true;
+ done = TRUE;
break;
}
debug_field f;
ftype = parse_coff_type (abfd, symbols, types, this_coff_symno,
- syment.n_type, psubaux, true, dhandle);
+ syment.n_type, psubaux, TRUE, dhandle);
f = debug_make_field (dhandle, bfd_asymbol_name (sym), ftype,
bitpos, bitsize, DEBUG_VISIBILITY_PUBLIC);
if (f == DEBUG_FIELD_NULL)
/* Parse an enum type. */
static debug_type
-parse_coff_enum_type (abfd, symbols, types, pauxent, dhandle)
- bfd *abfd;
- struct coff_symbols *symbols;
- struct coff_types *types;
- union internal_auxent *pauxent;
- PTR dhandle;
+parse_coff_enum_type (bfd *abfd, struct coff_symbols *symbols,
+ struct coff_types *types ATTRIBUTE_UNUSED,
+ union internal_auxent *pauxent, void *dhandle)
{
long symend;
int alloc;
const char **names;
bfd_signed_vma *vals;
int count;
- boolean done;
+ bfd_boolean done;
symend = pauxent->x_sym.x_fcnary.x_fcn.x_endndx.l;
vals = (bfd_signed_vma *) xmalloc (alloc * sizeof *vals);
count = 0;
- done = false;
+ done = FALSE;
while (! done
&& symbols->coff_symno < symend
&& symbols->symno < symbols->symcount)
if (! bfd_coff_get_syment (abfd, sym, &syment))
{
- fprintf (stderr, "%s: bfd_coff_get_syment failed: %s\n",
- program_name, bfd_errmsg (bfd_get_error ()));
+ non_fatal (_("bfd_coff_get_syment failed: %s"),
+ bfd_errmsg (bfd_get_error ()));
+ free (names);
+ free (vals);
return DEBUG_TYPE_NULL;
}
break;
case C_EOS:
- done = true;
+ done = TRUE;
break;
}
}
/* Handle a single COFF symbol. */
-static boolean
-parse_coff_symbol (abfd, types, sym, coff_symno, psyment, dhandle, type,
- within_function)
- bfd *abfd;
- struct coff_types *types;
- asymbol *sym;
- long coff_symno;
- struct internal_syment *psyment;
- PTR dhandle;
- debug_type type;
- boolean within_function;
+static bfd_boolean
+parse_coff_symbol (bfd *abfd ATTRIBUTE_UNUSED, struct coff_types *types,
+ asymbol *sym, long coff_symno,
+ struct internal_syment *psyment, void *dhandle,
+ debug_type type, bfd_boolean within_function)
{
switch (psyment->n_sclass)
{
case C_AUTO:
if (! debug_record_variable (dhandle, bfd_asymbol_name (sym), type,
DEBUG_LOCAL, bfd_asymbol_value (sym)))
- return false;
+ return FALSE;
break;
+ case C_WEAKEXT:
case C_EXT:
if (! debug_record_variable (dhandle, bfd_asymbol_name (sym), type,
DEBUG_GLOBAL, bfd_asymbol_value (sym)))
- return false;
+ return FALSE;
break;
case C_STAT:
? DEBUG_LOCAL_STATIC
: DEBUG_STATIC),
bfd_asymbol_value (sym)))
- return false;
+ return FALSE;
break;
case C_REG:
/* FIXME: We may need to convert the register number. */
if (! debug_record_variable (dhandle, bfd_asymbol_name (sym), type,
DEBUG_REGISTER, bfd_asymbol_value (sym)))
- return false;
+ return FALSE;
break;
case C_LABEL:
case C_ARG:
if (! debug_record_parameter (dhandle, bfd_asymbol_name (sym), type,
DEBUG_PARM_STACK, bfd_asymbol_value (sym)))
- return false;
+ return FALSE;
break;
case C_REGPARM:
/* FIXME: We may need to convert the register number. */
if (! debug_record_parameter (dhandle, bfd_asymbol_name (sym), type,
DEBUG_PARM_REG, bfd_asymbol_value (sym)))
- return false;
+ return FALSE;
break;
case C_TPDEF:
type = debug_name_type (dhandle, bfd_asymbol_name (sym), type);
if (type == DEBUG_TYPE_NULL)
- return false;
+ return FALSE;
break;
case C_STRTAG:
type = debug_tag_type (dhandle, bfd_asymbol_name (sym), type);
if (type == DEBUG_TYPE_NULL)
- return false;
+ return FALSE;
/* Store the named type into the slot, so that references get
the name. */
break;
}
- return true;
+ return TRUE;
+}
+
+/* Determine if a symbol has external visibility. */
+
+static bfd_boolean
+external_coff_symbol_p (int sym_class)
+{
+ switch (sym_class)
+ {
+ case C_EXT:
+ case C_WEAKEXT:
+ return TRUE;
+ default:
+ break;
+ }
+ return FALSE;
}
/* This is the main routine. It looks through all the symbols and
handles them. */
-boolean
-parse_coff (abfd, syms, symcount, dhandle)
- bfd *abfd;
- asymbol **syms;
- long symcount;
- PTR dhandle;
+bfd_boolean
+parse_coff (bfd *abfd, asymbol **syms, long symcount, void *dhandle)
{
struct coff_symbols symbols;
struct coff_types types;
const char *fnname;
int fnclass;
int fntype;
+ bfd_vma fnend;
alent *linenos;
- boolean within_function;
+ bfd_boolean within_function;
long this_coff_symno;
symbols.syms = syms;
fnname = NULL;
fnclass = 0;
fntype = 0;
+ fnend = 0;
linenos = NULL;
- within_function = false;
+ within_function = FALSE;
while (symbols.symno < symcount)
{
if (! bfd_coff_get_syment (abfd, sym, &syment))
{
- fprintf (stderr, "%s: bfd_coff_get_syment failed: %s\n",
- program_name, bfd_errmsg (bfd_get_error ()));
- return false;
+ non_fatal (_("bfd_coff_get_syment failed: %s"),
+ bfd_errmsg (bfd_get_error ()));
+ return FALSE;
}
name = bfd_asymbol_name (sym);
{
if (! bfd_coff_get_auxent (abfd, sym, 0, &auxent))
{
- fprintf (stderr, "%s: bfd_coff_get_auxent failed: %s\n",
- program_name, bfd_errmsg (bfd_get_error ()));
- return false;
+ non_fatal (_("bfd_coff_get_auxent failed: %s"),
+ bfd_errmsg (bfd_get_error ()));
+ return FALSE;
}
paux = &auxent;
}
/* The last C_FILE symbol points to the first external
symbol. */
if (! debug_set_filename (dhandle, "*globals*"))
- return false;
+ return FALSE;
}
switch (syment.n_sclass)
case C_FILE:
next_c_file = syment.n_value;
if (! debug_set_filename (dhandle, name))
- return false;
+ return FALSE;
break;
case C_STAT:
if (syment.n_type == T_NULL)
break;
/* Fall through. */
+ case C_WEAKEXT:
case C_EXT:
if (ISFCN (syment.n_type))
{
fnname = name;
fnclass = syment.n_sclass;
fntype = syment.n_type;
+ if (syment.n_numaux > 0)
+ fnend = bfd_asymbol_value (sym) + auxent.x_sym.x_misc.x_fsize;
+ else
+ fnend = 0;
linenos = BFD_SEND (abfd, _get_lineno, (abfd, sym));
break;
}
type = parse_coff_type (abfd, &symbols, &types, this_coff_symno,
- syment.n_type, paux, true, dhandle);
+ syment.n_type, paux, TRUE, dhandle);
if (type == DEBUG_TYPE_NULL)
- return false;
+ return FALSE;
if (! parse_coff_symbol (abfd, &types, sym, this_coff_symno, &syment,
dhandle, type, within_function))
- return false;
+ return FALSE;
break;
case C_FCN:
{
if (fnname == NULL)
{
- fprintf (stderr, "%s: %ld: .bf without preceding function\n",
- program_name, this_coff_symno);
- return false;
+ non_fatal (_("%ld: .bf without preceding function"),
+ this_coff_symno);
+ return FALSE;
}
type = parse_coff_type (abfd, &symbols, &types, this_coff_symno,
- DECREF (fntype), paux, false, dhandle);
+ DECREF (fntype), paux, FALSE, dhandle);
if (type == DEBUG_TYPE_NULL)
- return false;
+ return FALSE;
if (! debug_record_function (dhandle, fnname, type,
- fnclass == C_EXT,
+ external_coff_symbol_p (fnclass),
bfd_asymbol_value (sym)))
- return false;
+ return FALSE;
if (linenos != NULL)
{
else
base = auxent.x_sym.x_misc.x_lnsz.x_lnno - 1;
- addr = bfd_get_section_vma (abfd, bfd_get_section (sym));
+ addr = bfd_section_vma (bfd_asymbol_section (sym));
++linenos;
if (! debug_record_line (dhandle,
linenos->line_number + base,
linenos->u.offset + addr))
- return false;
+ return FALSE;
++linenos;
}
}
fnclass = 0;
fntype = 0;
- within_function = true;
+ within_function = TRUE;
}
else if (strcmp (name, ".ef") == 0)
{
if (! within_function)
{
- fprintf (stderr, "%s: %ld: unexpected .ef\n",
- program_name, this_coff_symno);
- return false;
+ non_fatal (_("%ld: unexpected .ef\n"), this_coff_symno);
+ return FALSE;
}
- if (! debug_end_function (dhandle, bfd_asymbol_value (sym)))
- return false;
+ if (bfd_asymbol_value (sym) > fnend)
+ fnend = bfd_asymbol_value (sym);
+ if (! debug_end_function (dhandle, fnend))
+ return FALSE;
- within_function = false;
+ fnend = 0;
+ within_function = FALSE;
}
break;
if (strcmp (name, ".bb") == 0)
{
if (! debug_start_block (dhandle, bfd_asymbol_value (sym)))
- return false;
+ return FALSE;
}
else if (strcmp (name, ".eb") == 0)
{
if (! debug_end_block (dhandle, bfd_asymbol_value (sym)))
- return false;
+ return FALSE;
}
break;
default:
type = parse_coff_type (abfd, &symbols, &types, this_coff_symno,
- syment.n_type, paux, true, dhandle);
+ syment.n_type, paux, TRUE, dhandle);
if (type == DEBUG_TYPE_NULL)
- return false;
+ return FALSE;
if (! parse_coff_symbol (abfd, &types, sym, this_coff_symno, &syment,
dhandle, type, within_function))
- return false;
+ return FALSE;
break;
}
}
- return true;
+ return TRUE;
}
projects / deliverable / binutils-gdb.git / blobdiff