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cplus-dem.c
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/* Demangler for GNU C++
Copyright 1989, 1991, 1994, 1995, 1996, 1997, 1998, 1999,
2000, 2001, 2002, 2003, 2004 Free Software Foundation, Inc.
Written by James Clark (jjc@jclark.uucp)
Rewritten by Fred Fish (fnf@cygnus.com) for ARM and Lucid demangling
Modified by Satish Pai (pai@apollo.hp.com) for HP demangling
This file is part of the libiberty library.
Libiberty is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public
License as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later version.
In addition to the permissions in the GNU Library General Public
License, the Free Software Foundation gives you unlimited permission
to link the compiled version of this file into combinations with other
programs, and to distribute those combinations without any restriction
coming from the use of this file. (The Library Public License
restrictions do apply in other respects; for example, they cover
modification of the file, and distribution when not linked into a
combined executable.)
Libiberty 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
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with libiberty; see the file COPYING.LIB. If
not, write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA. */
/* This file exports two functions; cplus_mangle_opname and cplus_demangle.
This file imports xmalloc and xrealloc, which are like malloc and
realloc except that they generate a fatal error if there is no
available memory. */
/* This file lives in both GCC and libiberty. When making changes, please
try not to break either. */
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "safe-ctype.h"
#include <sys/types.h>
#include <string.h>
#include <stdio.h>
#ifdef HAVE_STDLIB_H
#include <stdlib.h>
#else
char * malloc ();
char * realloc ();
#endif
#include <demangle.h>
#undef CURRENT_DEMANGLING_STYLE
#define CURRENT_DEMANGLING_STYLE work->options
#include "libiberty.h"
static char *ada_demangle PARAMS ((const char *, int));
#define min(X,Y) (((X) < (Y)) ? (X) : (Y))
/* A value at least one greater than the maximum number of characters
that will be output when using the `%d' format with `printf'. */
#define INTBUF_SIZE 32
extern void fancy_abort PARAMS ((void)) ATTRIBUTE_NORETURN;
/* In order to allow a single demangler executable to demangle strings
using various common values of CPLUS_MARKER, as well as any specific
one set at compile time, we maintain a string containing all the
commonly used ones, and check to see if the marker we are looking for
is in that string. CPLUS_MARKER is usually '$' on systems where the
assembler can deal with that. Where the assembler can't, it's usually
'.' (but on many systems '.' is used for other things). We put the
current defined CPLUS_MARKER first (which defaults to '$'), followed
by the next most common value, followed by an explicit '$' in case
the value of CPLUS_MARKER is not '$'.
We could avoid this if we could just get g++ to tell us what the actual
cplus marker character is as part of the debug information, perhaps by
ensuring that it is the character that terminates the gcc<n>_compiled
marker symbol (FIXME). */
#if !defined (CPLUS_MARKER)
#define CPLUS_MARKER '$'
#endif
enum demangling_styles current_demangling_style = auto_demangling;
static char cplus_markers[] = { CPLUS_MARKER, '.', '$', '\0' };
static char char_str[2] = { '\000', '\000' };
void
set_cplus_marker_for_demangling (ch)
int ch;
{
cplus_markers[0] = ch;
}
typedef struct string /* Beware: these aren't required to be */
{ /* '\0' terminated. */
char *b; /* pointer to start of string */
char *p; /* pointer after last character */
char *e; /* pointer after end of allocated space */
} string;
/* Stuff that is shared between sub-routines.
Using a shared structure allows cplus_demangle to be reentrant. */
struct work_stuff
{
int options;
char **typevec;
char **ktypevec;
char **btypevec;
int numk;
int numb;
int ksize;
int bsize;
int ntypes;
int typevec_size;
int constructor;
int destructor;
int static_type; /* A static member function */
int temp_start; /* index in demangled to start of template args */
int type_quals; /* The type qualifiers. */
int dllimported; /* Symbol imported from a PE DLL */
char **tmpl_argvec; /* Template function arguments. */
int ntmpl_args; /* The number of template function arguments. */
int forgetting_types; /* Nonzero if we are not remembering the types
we see. */
string* previous_argument; /* The last function argument demangled. */
int nrepeats; /* The number of times to repeat the previous
argument. */
};
#define PRINT_ANSI_QUALIFIERS (work -> options & DMGL_ANSI)
#define PRINT_ARG_TYPES (work -> options & DMGL_PARAMS)
static const struct optable
{
const char *const in;
const char *const out;
const int flags;
} optable[] = {
{"nw", " new", DMGL_ANSI}, /* new (1.92, ansi) */
{"dl", " delete", DMGL_ANSI}, /* new (1.92, ansi) */
{"new", " new", 0}, /* old (1.91, and 1.x) */
{"delete", " delete", 0}, /* old (1.91, and 1.x) */
{"vn", " new []", DMGL_ANSI}, /* GNU, pending ansi */
{"vd", " delete []", DMGL_ANSI}, /* GNU, pending ansi */
{"as", "=", DMGL_ANSI}, /* ansi */
{"ne", "!=", DMGL_ANSI}, /* old, ansi */
{"eq", "==", DMGL_ANSI}, /* old, ansi */
{"ge", ">=", DMGL_ANSI}, /* old, ansi */
{"gt", ">", DMGL_ANSI}, /* old, ansi */
{"le", "<=", DMGL_ANSI}, /* old, ansi */
{"lt", "<", DMGL_ANSI}, /* old, ansi */
{"plus", "+", 0}, /* old */
{"pl", "+", DMGL_ANSI}, /* ansi */
{"apl", "+=", DMGL_ANSI}, /* ansi */
{"minus", "-", 0}, /* old */
{"mi", "-", DMGL_ANSI}, /* ansi */
{"ami", "-=", DMGL_ANSI}, /* ansi */
{"mult", "*", 0}, /* old */
{"ml", "*", DMGL_ANSI}, /* ansi */
{"amu", "*=", DMGL_ANSI}, /* ansi (ARM/Lucid) */
{"aml", "*=", DMGL_ANSI}, /* ansi (GNU/g++) */
{"convert", "+", 0}, /* old (unary +) */
{"negate", "-", 0}, /* old (unary -) */
{"trunc_mod", "%", 0}, /* old */
{"md", "%", DMGL_ANSI}, /* ansi */
{"amd", "%=", DMGL_ANSI}, /* ansi */
{"trunc_div", "/", 0}, /* old */
{"dv", "/", DMGL_ANSI}, /* ansi */
{"adv", "/=", DMGL_ANSI}, /* ansi */
{"truth_andif", "&&", 0}, /* old */
{"aa", "&&", DMGL_ANSI}, /* ansi */
{"truth_orif", "||", 0}, /* old */
{"oo", "||", DMGL_ANSI}, /* ansi */
{"truth_not", "!", 0}, /* old */
{"nt", "!", DMGL_ANSI}, /* ansi */
{"postincrement","++", 0}, /* old */
{"pp", "++", DMGL_ANSI}, /* ansi */
{"postdecrement","--", 0}, /* old */
{"mm", "--", DMGL_ANSI}, /* ansi */
{"bit_ior", "|", 0}, /* old */
{"or", "|", DMGL_ANSI}, /* ansi */
{"aor", "|=", DMGL_ANSI}, /* ansi */
{"bit_xor", "^", 0}, /* old */
{"er", "^", DMGL_ANSI}, /* ansi */
{"aer", "^=", DMGL_ANSI}, /* ansi */
{"bit_and", "&", 0}, /* old */
{"ad", "&", DMGL_ANSI}, /* ansi */
{"aad", "&=", DMGL_ANSI}, /* ansi */
{"bit_not", "~", 0}, /* old */
{"co", "~", DMGL_ANSI}, /* ansi */
{"call", "()", 0}, /* old */
{"cl", "()", DMGL_ANSI}, /* ansi */
{"alshift", "<<", 0}, /* old */
{"ls", "<<", DMGL_ANSI}, /* ansi */
{"als", "<<=", DMGL_ANSI}, /* ansi */
{"arshift", ">>", 0}, /* old */
{"rs", ">>", DMGL_ANSI}, /* ansi */
{"ars", ">>=", DMGL_ANSI}, /* ansi */
{"component", "->", 0}, /* old */
{"pt", "->", DMGL_ANSI}, /* ansi; Lucid C++ form */
{"rf", "->", DMGL_ANSI}, /* ansi; ARM/GNU form */
{"indirect", "*", 0}, /* old */
{"method_call", "->()", 0}, /* old */
{"addr", "&", 0}, /* old (unary &) */
{"array", "[]", 0}, /* old */
{"vc", "[]", DMGL_ANSI}, /* ansi */
{"compound", ", ", 0}, /* old */
{"cm", ", ", DMGL_ANSI}, /* ansi */
{"cond", "?:", 0}, /* old */
{"cn", "?:", DMGL_ANSI}, /* pseudo-ansi */
{"max", ">?", 0}, /* old */
{"mx", ">?", DMGL_ANSI}, /* pseudo-ansi */
{"min", "<?", 0}, /* old */
{"mn", "<?", DMGL_ANSI}, /* pseudo-ansi */
{"nop", "", 0}, /* old (for operator=) */
{"rm", "->*", DMGL_ANSI}, /* ansi */
{"sz", "sizeof ", DMGL_ANSI} /* pseudo-ansi */
};
/* These values are used to indicate the various type varieties.
They are all non-zero so that they can be used as `success'
values. */
typedef enum type_kind_t
{
tk_none,
tk_pointer,
tk_reference,
tk_integral,
tk_bool,
tk_char,
tk_real
} type_kind_t;
const struct demangler_engine libiberty_demanglers[] =
{
{
NO_DEMANGLING_STYLE_STRING,
no_demangling,
"Demangling disabled"
}
,
{
AUTO_DEMANGLING_STYLE_STRING,
auto_demangling,
"Automatic selection based on executable"
}
,
{
GNU_DEMANGLING_STYLE_STRING,
gnu_demangling,
"GNU (g++) style demangling"
}
,
{
LUCID_DEMANGLING_STYLE_STRING,
lucid_demangling,
"Lucid (lcc) style demangling"
}
,
{
ARM_DEMANGLING_STYLE_STRING,
arm_demangling,
"ARM style demangling"
}
,
{
HP_DEMANGLING_STYLE_STRING,
hp_demangling,
"HP (aCC) style demangling"
}
,
{
EDG_DEMANGLING_STYLE_STRING,
edg_demangling,
"EDG style demangling"
}
,
{
GNU_V3_DEMANGLING_STYLE_STRING,
gnu_v3_demangling,
"GNU (g++) V3 ABI-style demangling"
}
,
{
JAVA_DEMANGLING_STYLE_STRING,
java_demangling,
"Java style demangling"
}
,
{
GNAT_DEMANGLING_STYLE_STRING,
gnat_demangling,
"GNAT style demangling"
}
,
{
NULL, unknown_demangling, NULL
}
};
#define STRING_EMPTY(str) ((str) -> b == (str) -> p)
#define APPEND_BLANK(str) {if (!STRING_EMPTY(str)) \
string_append(str, " ");}
#define LEN_STRING(str) ( (STRING_EMPTY(str))?0:((str)->p - (str)->b))
/* The scope separator appropriate for the language being demangled. */
#define SCOPE_STRING(work) ((work->options & DMGL_JAVA) ? "." : "::")
#define ARM_VTABLE_STRING "__vtbl__" /* Lucid/ARM virtual table prefix */
#define ARM_VTABLE_STRLEN 8 /* strlen (ARM_VTABLE_STRING) */
/* Prototypes for local functions */
static void
delete_work_stuff PARAMS ((struct work_stuff *));
static void
delete_non_B_K_work_stuff PARAMS ((struct work_stuff *));
static char *
mop_up PARAMS ((struct work_stuff *, string *, int));
static void
squangle_mop_up PARAMS ((struct work_stuff *));
static void
work_stuff_copy_to_from PARAMS ((struct work_stuff *, struct work_stuff *));
#if 0
static int
demangle_method_args PARAMS ((struct work_stuff *, const char **, string *));
#endif
static char *
internal_cplus_demangle PARAMS ((struct work_stuff *, const char *));
static int
demangle_template_template_parm PARAMS ((struct work_stuff *work,
const char **, string *));
static int
demangle_template PARAMS ((struct work_stuff *work, const char **, string *,
string *, int, int));
static int
arm_pt PARAMS ((struct work_stuff *, const char *, int, const char **,
const char **));
static int
demangle_class_name PARAMS ((struct work_stuff *, const char **, string *));
static int
demangle_qualified PARAMS ((struct work_stuff *, const char **, string *,
int, int));
static int
demangle_class PARAMS ((struct work_stuff *, const char **, string *));
static int
demangle_fund_type PARAMS ((struct work_stuff *, const char **, string *));
static int
demangle_signature PARAMS ((struct work_stuff *, const char **, string *));
static int
demangle_prefix PARAMS ((struct work_stuff *, const char **, string *));
static int
gnu_special PARAMS ((struct work_stuff *, const char **, string *));
static int
arm_special PARAMS ((const char **, string *));
static void
string_need PARAMS ((string *, int));
static void
string_delete PARAMS ((string *));
static void
string_init PARAMS ((string *));
static void
string_clear PARAMS ((string *));
#if 0
static int
string_empty PARAMS ((string *));
#endif
static void
string_append PARAMS ((string *, const char *));
static void
string_appends PARAMS ((string *, string *));
static void
string_appendn PARAMS ((string *, const char *, int));
static void
string_prepend PARAMS ((string *, const char *));
static void
string_prependn PARAMS ((string *, const char *, int));
static void
string_append_template_idx PARAMS ((string *, int));
static int
get_count PARAMS ((const char **, int *));
static int
consume_count PARAMS ((const char **));
static int
consume_count_with_underscores PARAMS ((const char**));
static int
demangle_args PARAMS ((struct work_stuff *, const char **, string *));
static int
demangle_nested_args PARAMS ((struct work_stuff*, const char**, string*));
static int
do_type PARAMS ((struct work_stuff *, const char **, string *));
static int
do_arg PARAMS ((struct work_stuff *, const char **, string *));
static void
demangle_function_name PARAMS ((struct work_stuff *, const char **, string *,
const char *));
static int
iterate_demangle_function PARAMS ((struct work_stuff *,
const char **, string *, const char *));
static void
remember_type PARAMS ((struct work_stuff *, const char *, int));
static void
remember_Btype PARAMS ((struct work_stuff *, const char *, int, int));
static int
register_Btype PARAMS ((struct work_stuff *));
static void
remember_Ktype PARAMS ((struct work_stuff *, const char *, int));
static void
forget_types PARAMS ((struct work_stuff *));
static void
forget_B_and_K_types PARAMS ((struct work_stuff *));
static void
string_prepends PARAMS ((string *, string *));
static int
demangle_template_value_parm PARAMS ((struct work_stuff*, const char**,
string*, type_kind_t));
static int
do_hpacc_template_const_value PARAMS ((struct work_stuff *, const char **, string *));
static int
do_hpacc_template_literal PARAMS ((struct work_stuff *, const char **, string *));
static int
snarf_numeric_literal PARAMS ((const char **, string *));
/* There is a TYPE_QUAL value for each type qualifier. They can be
combined by bitwise-or to form the complete set of qualifiers for a
type. */
#define TYPE_UNQUALIFIED 0x0
#define TYPE_QUAL_CONST 0x1
#define TYPE_QUAL_VOLATILE 0x2
#define TYPE_QUAL_RESTRICT 0x4
static int
code_for_qualifier PARAMS ((int));
static const char*
qualifier_string PARAMS ((int));
static const char*
demangle_qualifier PARAMS ((int));
static int
demangle_expression PARAMS ((struct work_stuff *, const char **, string *,
type_kind_t));
static int
demangle_integral_value PARAMS ((struct work_stuff *, const char **,
string *));
static int
demangle_real_value PARAMS ((struct work_stuff *, const char **, string *));
static void
demangle_arm_hp_template PARAMS ((struct work_stuff *, const char **, int,
string *));
static void
recursively_demangle PARAMS ((struct work_stuff *, const char **, string *,
int));
static void
grow_vect PARAMS ((char **, size_t *, size_t, int));
/* Translate count to integer, consuming tokens in the process.
Conversion terminates on the first non-digit character.
Trying to consume something that isn't a count results in no
consumption of input and a return of -1.
Overflow consumes the rest of the digits, and returns -1. */
static int
consume_count (type)
const char **type;
{
int count = 0;
if (! ISDIGIT ((unsigned char)**type))
return -1;
while (ISDIGIT ((unsigned char)**type))
{
count *= 10;
/* Check for overflow.
We assume that count is represented using two's-complement;
no power of two is divisible by ten, so if an overflow occurs
when multiplying by ten, the result will not be a multiple of
ten. */
if ((count % 10) != 0)
{
while (ISDIGIT ((unsigned char) **type))
(*type)++;
return -1;
}
count += **type - '0';
(*type)++;
}
if (count < 0)
count = -1;
return (count);
}
/* Like consume_count, but for counts that are preceded and followed
by '_' if they are greater than 10. Also, -1 is returned for
failure, since 0 can be a valid value. */
static int
consume_count_with_underscores (mangled)
const char **mangled;
{
int idx;
if (**mangled == '_')
{
(*mangled)++;
if (!ISDIGIT ((unsigned char)**mangled))
return -1;
idx = consume_count (mangled);
if (**mangled != '_')
/* The trailing underscore was missing. */
return -1;
(*mangled)++;
}
else
{
if (**mangled < '0' || **mangled > '9')
return -1;
idx = **mangled - '0';
(*mangled)++;
}
return idx;
}
/* C is the code for a type-qualifier. Return the TYPE_QUAL
corresponding to this qualifier. */
static int
code_for_qualifier (c)
int c;
{
switch (c)
{
case 'C':
return TYPE_QUAL_CONST;
case 'V':
return TYPE_QUAL_VOLATILE;
case 'u':
return TYPE_QUAL_RESTRICT;
default:
break;
}
/* C was an invalid qualifier. */
abort ();
}
/* Return the string corresponding to the qualifiers given by
TYPE_QUALS. */
static const char*
qualifier_string (type_quals)
int type_quals;
{
switch (type_quals)
{
case TYPE_UNQUALIFIED:
return "";
case TYPE_QUAL_CONST:
return "const";
case TYPE_QUAL_VOLATILE:
return "volatile";
case TYPE_QUAL_RESTRICT:
return "__restrict";
case TYPE_QUAL_CONST | TYPE_QUAL_VOLATILE:
return "const volatile";
case TYPE_QUAL_CONST | TYPE_QUAL_RESTRICT:
return "const __restrict";
case TYPE_QUAL_VOLATILE | TYPE_QUAL_RESTRICT:
return "volatile __restrict";
case TYPE_QUAL_CONST | TYPE_QUAL_VOLATILE | TYPE_QUAL_RESTRICT:
return "const volatile __restrict";
default:
break;
}
/* TYPE_QUALS was an invalid qualifier set. */
abort ();
}
/* C is the code for a type-qualifier. Return the string
corresponding to this qualifier. This function should only be
called with a valid qualifier code. */
static const char*
demangle_qualifier (c)
int c;
{
return qualifier_string (code_for_qualifier (c));
}
int
cplus_demangle_opname (opname, result, options)
const char *opname;
char *result;
int options;
{
int len, len1, ret;
string type;
struct work_stuff work[1];
const char *tem;
len = strlen(opname);
result[0] = '\0';
ret = 0;
memset ((char *) work, 0, sizeof (work));
work->options = options;
if (opname[0] == '_' && opname[1] == '_'
&& opname[2] == 'o' && opname[3] == 'p')
{
/* ANSI. */
/* type conversion operator. */
tem = opname + 4;
if (do_type (work, &tem, &type))
{
strcat (result, "operator ");
strncat (result, type.b, type.p - type.b);
string_delete (&type);
ret = 1;
}
}
else if (opname[0] == '_' && opname[1] == '_'
&& ISLOWER((unsigned char)opname[2])
&& ISLOWER((unsigned char)opname[3]))
{
if (opname[4] == '\0')
{
/* Operator. */
size_t i;
for (i = 0; i < ARRAY_SIZE (optable); i++)
{
if (strlen (optable[i].in) == 2
&& memcmp (optable[i].in, opname + 2, 2) == 0)
{
strcat (result, "operator");
strcat (result, optable[i].out);
ret = 1;
break;
}
}
}
else
{
if (opname[2] == 'a' && opname[5] == '\0')
{
/* Assignment. */
size_t i;
for (i = 0; i < ARRAY_SIZE (optable); i++)
{
if (strlen (optable[i].in) == 3
&& memcmp (optable[i].in, opname + 2, 3) == 0)
{
strcat (result, "operator");
strcat (result, optable[i].out);
ret = 1;
break;
}
}
}
}
}
else if (len >= 3
&& opname[0] == 'o'
&& opname[1] == 'p'
&& strchr (cplus_markers, opname[2]) != NULL)
{
/* see if it's an assignment expression */
if (len >= 10 /* op$assign_ */
&& memcmp (opname + 3, "assign_", 7) == 0)
{
size_t i;
for (i = 0; i < ARRAY_SIZE (optable); i++)
{
len1 = len - 10;
if ((int) strlen (optable[i].in) == len1
&& memcmp (optable[i].in, opname + 10, len1) == 0)
{
strcat (result, "operator");
strcat (result, optable[i].out);
strcat (result, "=");
ret = 1;
break;
}
}
}
else
{
size_t i;
for (i = 0; i < ARRAY_SIZE (optable); i++)
{
len1 = len - 3;
if ((int) strlen (optable[i].in) == len1
&& memcmp (optable[i].in, opname + 3, len1) == 0)
{
strcat (result, "operator");
strcat (result, optable[i].out);
ret = 1;
break;
}
}
}
}
else if (len >= 5 && memcmp (opname, "type", 4) == 0
&& strchr (cplus_markers, opname[4]) != NULL)
{
/* type conversion operator */
tem = opname + 5;
if (do_type (work, &tem, &type))
{
strcat (result, "operator ");
strncat (result, type.b, type.p - type.b);
string_delete (&type);
ret = 1;
}
}
squangle_mop_up (work);
return ret;
}
/* Takes operator name as e.g. "++" and returns mangled
operator name (e.g. "postincrement_expr"), or NULL if not found.
If OPTIONS & DMGL_ANSI == 1, return the ANSI name;
if OPTIONS & DMGL_ANSI == 0, return the old GNU name. */
const char *
cplus_mangle_opname (opname, options)
const char *opname;
int options;
{
size_t i;
int len;
len = strlen (opname);
for (i = 0; i < ARRAY_SIZE (optable); i++)
{
if ((int) strlen (optable[i].out) == len
&& (options & DMGL_ANSI) == (optable[i].flags & DMGL_ANSI)
&& memcmp (optable[i].out, opname, len) == 0)
return optable[i].in;
}
return (0);
}
/* Add a routine to set the demangling style to be sure it is valid and
allow for any demangler initialization that maybe necessary. */
enum demangling_styles
cplus_demangle_set_style (style)
enum demangling_styles style;
{
const struct demangler_engine *demangler = libiberty_demanglers;
for (; demangler->demangling_style != unknown_demangling; ++demangler)
if (style == demangler->demangling_style)
{
current_demangling_style = style;
return current_demangling_style;
}
return unknown_demangling;
}
/* Do string name to style translation */
enum demangling_styles
cplus_demangle_name_to_style (name)
const char *name;
{
const struct demangler_engine *demangler = libiberty_demanglers;
for (; demangler->demangling_style != unknown_demangling; ++demangler)
if (strcmp (name, demangler->demangling_style_name) == 0)
return demangler->demangling_style;
return unknown_demangling;
}
/* char *cplus_demangle (const char *mangled, int options)
If MANGLED is a mangled function name produced by GNU C++, then
a pointer to a @code{malloc}ed string giving a C++ representation
of the name will be returned; otherwise NULL will be returned.
It is the caller's responsibility to free the string which
is returned.
The OPTIONS arg may contain one or more of the following bits:
DMGL_ANSI ANSI qualifiers such as `const' and `void' are
included.
DMGL_PARAMS Function parameters are included.
For example,
cplus_demangle ("foo__1Ai", DMGL_PARAMS) => "A::foo(int)"
cplus_demangle ("foo__1Ai", DMGL_PARAMS | DMGL_ANSI) => "A::foo(int)"
cplus_demangle ("foo__1Ai", 0) => "A::foo"
cplus_demangle ("foo__1Afe", DMGL_PARAMS) => "A::foo(float,...)"
cplus_demangle ("foo__1Afe", DMGL_PARAMS | DMGL_ANSI)=> "A::foo(float,...)"
cplus_demangle ("foo__1Afe", 0) => "A::foo"
Note that any leading underscores, or other such characters prepended by
the compilation system, are presumed to have already been stripped from
MANGLED. */
char *
cplus_demangle (mangled, options)
const char *mangled;
int options;
{
char *ret;
struct work_stuff work[1];
if (current_demangling_style == no_demangling)
return xstrdup (mangled);
memset ((char *) work, 0, sizeof (work));
work->options = options;
if ((work->options & DMGL_STYLE_MASK) == 0)
work->options |= (int) current_demangling_style & DMGL_STYLE_MASK;
/* The V3 ABI demangling is implemented elsewhere. */
if (GNU_V3_DEMANGLING || AUTO_DEMANGLING)
{
ret = cplus_demangle_v3 (mangled, work->options);
if (ret || GNU_V3_DEMANGLING)
return ret;
}
if (JAVA_DEMANGLING)
{
ret = java_demangle_v3 (mangled);
if (ret)
return ret;
}
if (GNAT_DEMANGLING)
return ada_demangle(mangled,options);
ret = internal_cplus_demangle (work, mangled);
squangle_mop_up (work);
return (ret);
}
/* Assuming *OLD_VECT points to an array of *SIZE objects of size
ELEMENT_SIZE, grow it to contain at least MIN_SIZE objects,
updating *OLD_VECT and *SIZE as necessary. */
static void
grow_vect (old_vect, size, min_size, element_size)
char **old_vect;
size_t *size;
size_t min_size;
int element_size;
{
if (*size < min_size)
{
*size *= 2;
if (*size < min_size)
*size = min_size;
*old_vect = (void *) xrealloc (*old_vect, *size * element_size);
}
}
/* Demangle ada names:
1. Discard final __{DIGIT}+ or ${DIGIT}+
2. Convert other instances of embedded "__" to `.'.
3. Discard leading _ada_.
4. Remove everything after first ___ if it is followed by 'X'.
5. Put symbols that should be suppressed in <...> brackets.
The resulting string is valid until the next call of ada_demangle. */
static char *
ada_demangle (mangled, option)
const char *mangled;
int option ATTRIBUTE_UNUSED;
{
int i, j;
int len0;
const char* p;
char *demangled = NULL;
int changed;
size_t demangled_size = 0;
changed = 0;
if (strncmp (mangled, "_ada_", 5) == 0)
{
mangled += 5;
changed = 1;
}
if (mangled[0] == '_' || mangled[0] == '<')
goto Suppress;
p = strstr (mangled, "___");
if (p == NULL)
len0 = strlen (mangled);
else
{
if (p[3] == 'X')
{
len0 = p - mangled;