0,0 → 1,4862 |
/* Demangler for GNU C++ |
Copyright 1989, 1991, 1994, 1995, 1996, 1997, 1998, 1999, |
2000, 2001, 2002, 2003, 2004, 2010 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., 51 Franklin Street - Fifth Floor, |
Boston, MA 02110-1301, 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 |
void * malloc (); |
void * realloc (); |
#endif |
|
#include <demangle.h> |
#undef CURRENT_DEMANGLING_STYLE |
#define CURRENT_DEMANGLING_STYLE work->options |
|
#include "libiberty.h" |
|
#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 (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 (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 (struct work_stuff *); |
|
static void delete_non_B_K_work_stuff (struct work_stuff *); |
|
static char *mop_up (struct work_stuff *, string *, int); |
|
static void squangle_mop_up (struct work_stuff *); |
|
static void work_stuff_copy_to_from (struct work_stuff *, struct work_stuff *); |
|
#if 0 |
static int |
demangle_method_args (struct work_stuff *, const char **, string *); |
#endif |
|
static char * |
internal_cplus_demangle (struct work_stuff *, const char *); |
|
static int |
demangle_template_template_parm (struct work_stuff *work, |
const char **, string *); |
|
static int |
demangle_template (struct work_stuff *work, const char **, string *, |
string *, int, int); |
|
static int |
arm_pt (struct work_stuff *, const char *, int, const char **, |
const char **); |
|
static int |
demangle_class_name (struct work_stuff *, const char **, string *); |
|
static int |
demangle_qualified (struct work_stuff *, const char **, string *, |
int, int); |
|
static int demangle_class (struct work_stuff *, const char **, string *); |
|
static int demangle_fund_type (struct work_stuff *, const char **, string *); |
|
static int demangle_signature (struct work_stuff *, const char **, string *); |
|
static int demangle_prefix (struct work_stuff *, const char **, string *); |
|
static int gnu_special (struct work_stuff *, const char **, string *); |
|
static int arm_special (const char **, string *); |
|
static void string_need (string *, int); |
|
static void string_delete (string *); |
|
static void |
string_init (string *); |
|
static void string_clear (string *); |
|
#if 0 |
static int string_empty (string *); |
#endif |
|
static void string_append (string *, const char *); |
|
static void string_appends (string *, string *); |
|
static void string_appendn (string *, const char *, int); |
|
static void string_prepend (string *, const char *); |
|
static void string_prependn (string *, const char *, int); |
|
static void string_append_template_idx (string *, int); |
|
static int get_count (const char **, int *); |
|
static int consume_count (const char **); |
|
static int consume_count_with_underscores (const char**); |
|
static int demangle_args (struct work_stuff *, const char **, string *); |
|
static int demangle_nested_args (struct work_stuff*, const char**, string*); |
|
static int do_type (struct work_stuff *, const char **, string *); |
|
static int do_arg (struct work_stuff *, const char **, string *); |
|
static int |
demangle_function_name (struct work_stuff *, const char **, string *, |
const char *); |
|
static int |
iterate_demangle_function (struct work_stuff *, |
const char **, string *, const char *); |
|
static void remember_type (struct work_stuff *, const char *, int); |
|
static void remember_Btype (struct work_stuff *, const char *, int, int); |
|
static int register_Btype (struct work_stuff *); |
|
static void remember_Ktype (struct work_stuff *, const char *, int); |
|
static void forget_types (struct work_stuff *); |
|
static void forget_B_and_K_types (struct work_stuff *); |
|
static void string_prepends (string *, string *); |
|
static int |
demangle_template_value_parm (struct work_stuff*, const char**, |
string*, type_kind_t); |
|
static int |
do_hpacc_template_const_value (struct work_stuff *, const char **, string *); |
|
static int |
do_hpacc_template_literal (struct work_stuff *, const char **, string *); |
|
static int snarf_numeric_literal (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 (int); |
|
static const char* qualifier_string (int); |
|
static const char* demangle_qualifier (int); |
|
static int demangle_expression (struct work_stuff *, const char **, string *, |
type_kind_t); |
|
static int |
demangle_integral_value (struct work_stuff *, const char **, string *); |
|
static int |
demangle_real_value (struct work_stuff *, const char **, string *); |
|
static void |
demangle_arm_hp_template (struct work_stuff *, const char **, int, string *); |
|
static void |
recursively_demangle (struct work_stuff *, const char **, string *, 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 (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 (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 (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 (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 (int c) |
{ |
return qualifier_string (code_for_qualifier (c)); |
} |
|
int |
cplus_demangle_opname (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 (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 (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 (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 (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); |
} |
|
/* Demangle ada names. The encoding is documented in gcc/ada/exp_dbug.ads. */ |
|
char * |
ada_demangle (const char *mangled, int option ATTRIBUTE_UNUSED) |
{ |
int len0; |
const char* p; |
char *d; |
char *demangled; |
|
/* Discard leading _ada_, which is used for library level subprograms. */ |
if (strncmp (mangled, "_ada_", 5) == 0) |
mangled += 5; |
|
/* All ada unit names are lower-case. */ |
if (!ISLOWER (mangled[0])) |
goto unknown; |
|
/* Most of the demangling will trivially remove chars. Operator names |
may add one char but because they are always preceeded by '__' which is |
replaced by '.', they eventually never expand the size. |
A few special names such as '___elabs' add a few chars (at most 7), but |
they occur only once. */ |
len0 = strlen (mangled) + 7 + 1; |
demangled = XNEWVEC (char, len0); |
|
d = demangled; |
p = mangled; |
while (1) |
{ |
/* An entity names is expected. */ |
if (ISLOWER (*p)) |
{ |
/* An identifier, which is always lower case. */ |
do |
*d++ = *p++; |
while (ISLOWER(*p) || ISDIGIT (*p) |
|| (p[0] == '_' && (ISLOWER (p[1]) || ISDIGIT (p[1])))); |
} |
else if (p[0] == 'O') |
{ |
/* An operator name. */ |
static const char * const operators[][2] = |
{{"Oabs", "abs"}, {"Oand", "and"}, {"Omod", "mod"}, |
{"Onot", "not"}, {"Oor", "or"}, {"Orem", "rem"}, |
{"Oxor", "xor"}, {"Oeq", "="}, {"One", "/="}, |
{"Olt", "<"}, {"Ole", "<="}, {"Ogt", ">"}, |
{"Oge", ">="}, {"Oadd", "+"}, {"Osubtract", "-"}, |
{"Oconcat", "&"}, {"Omultiply", "*"}, {"Odivide", "/"}, |
{"Oexpon", "**"}, {NULL, NULL}}; |
int k; |
|
for (k = 0; operators[k][0] != NULL; k++) |
{ |
size_t slen = strlen (operators[k][0]); |
if (strncmp (p, operators[k][0], slen) == 0) |
{ |
p += slen; |
slen = strlen (operators[k][1]); |
*d++ = '"'; |
memcpy (d, operators[k][1], slen); |
d += slen; |
*d++ = '"'; |
break; |
} |
} |
/* Operator not found. */ |
if (operators[k][0] == NULL) |
goto unknown; |
} |
else |
{ |
/* Not a GNAT encoding. */ |
goto unknown; |
} |
|
/* The name can be directly followed by some uppercase letters. */ |
if (p[0] == 'T' && p[1] == 'K') |
{ |
/* Task stuff. */ |
if (p[2] == 'B' && p[3] == 0) |
{ |
/* Subprogram for task body. */ |
break; |
} |
else if (p[2] == '_' && p[3] == '_') |
{ |
/* Inner declarations in a task. */ |
p += 4; |
*d++ = '.'; |
continue; |
} |
else |
goto unknown; |
} |
if (p[0] == 'E' && p[1] == 0) |
{ |
/* Exception name. */ |
goto unknown; |
} |
if ((p[0] == 'P' || p[0] == 'N') && p[1] == 0) |
{ |
/* Protected type subprogram. */ |
break; |
} |
if ((*p == 'N' || *p == 'S') && p[1] == 0) |
{ |
/* Enumerated type name table. */ |
goto unknown; |
} |
if (p[0] == 'X') |
{ |
/* Body nested. */ |
p++; |
while (p[0] == 'n' || p[0] == 'b') |
p++; |
} |
if (p[0] == 'S' && p[1] != 0 && (p[2] == '_' || p[2] == 0)) |
{ |
/* Stream operations. */ |
const char *name; |
switch (p[1]) |
{ |
case 'R': |
name = "'Read"; |
break; |
case 'W': |
name = "'Write"; |
break; |
case 'I': |
name = "'Input"; |
break; |
case 'O': |
name = "'Output"; |
break; |
default: |
goto unknown; |
} |
p += 2; |
strcpy (d, name); |
d += strlen (name); |
} |
else if (p[0] == 'D') |
{ |
/* Controlled type operation. */ |
const char *name; |
switch (p[1]) |
{ |
case 'F': |
name = ".Finalize"; |
break; |
case 'A': |
name = ".Adjust"; |
break; |
default: |
goto unknown; |
} |
strcpy (d, name); |
d += strlen (name); |
break; |
} |
|
if (p[0] == '_') |
{ |
/* Separator. */ |
if (p[1] == '_') |
{ |
/* Standard separator. Handled first. */ |
p += 2; |
|
if (ISDIGIT (*p)) |
{ |
/* Overloading number. */ |
do |
p++; |
while (ISDIGIT (*p) || (p[0] == '_' && ISDIGIT (p[1]))); |
if (*p == 'X') |
{ |
p++; |
while (p[0] == 'n' || p[0] == 'b') |
p++; |
} |
} |
else if (p[0] == '_' && p[1] != '_') |
{ |
/* Special names. */ |
static const char * const special[][2] = { |
{ "_elabb", "'Elab_Body" }, |
{ "_elabs", "'Elab_Spec" }, |
{ "_size", "'Size" }, |
{ "_alignment", "'Alignment" }, |
{ "_assign", ".\":=\"" }, |
{ NULL, NULL } |
}; |
int k; |
|
for (k = 0; special[k][0] != NULL; k++) |
{ |
size_t slen = strlen (special[k][0]); |
if (strncmp (p, special[k][0], slen) == 0) |
{ |
p += slen; |
slen = strlen (special[k][1]); |
memcpy (d, special[k][1], slen); |
d += slen; |
break; |
} |
} |
if (special[k][0] != NULL) |
break; |
else |
goto unknown; |
} |
else |
{ |
*d++ = '.'; |
continue; |
} |
} |
else if (p[1] == 'B' || p[1] == 'E') |
{ |
/* Entry Body or barrier Evaluation. */ |
p += 2; |
while (ISDIGIT (*p)) |
p++; |
if (p[0] == 's' && p[1] == 0) |
break; |
else |
goto unknown; |
} |
else |
goto unknown; |
} |
|
if (p[0] == '.' && ISDIGIT (p[1])) |
{ |
/* Nested subprogram. */ |
p += 2; |
while (ISDIGIT (*p)) |
p++; |
} |
if (*p == 0) |
{ |
/* End of mangled name. */ |
break; |
} |
else |
goto unknown; |
} |
*d = 0; |
return demangled; |
|
unknown: |
len0 = strlen (mangled); |
demangled = XNEWVEC (char, len0 + 3); |
|
if (mangled[0] == '<') |
strcpy (demangled, mangled); |
else |
sprintf (demangled, "<%s>", mangled); |
|
return demangled; |
} |
|
/* This function performs most of what cplus_demangle use to do, but |
to be able to demangle a name with a B, K or n code, we need to |
have a longer term memory of what types have been seen. The original |
now initializes and cleans up the squangle code info, while internal |
calls go directly to this routine to avoid resetting that info. */ |
|
static char * |
internal_cplus_demangle (struct work_stuff *work, const char *mangled) |
{ |
|
string decl; |
int success = 0; |
char *demangled = NULL; |
int s1, s2, s3, s4; |
s1 = work->constructor; |
s2 = work->destructor; |
s3 = work->static_type; |
s4 = work->type_quals; |
work->constructor = work->destructor = 0; |
work->type_quals = TYPE_UNQUALIFIED; |
work->dllimported = 0; |
|
if ((mangled != NULL) && (*mangled != '\0')) |
{ |
string_init (&decl); |
|
/* First check to see if gnu style demangling is active and if the |
string to be demangled contains a CPLUS_MARKER. If so, attempt to |
recognize one of the gnu special forms rather than looking for a |
standard prefix. In particular, don't worry about whether there |
is a "__" string in the mangled string. Consider "_$_5__foo" for |
example. */ |
|
if ((AUTO_DEMANGLING || GNU_DEMANGLING)) |
{ |
success = gnu_special (work, &mangled, &decl); |
} |
if (!success) |
{ |
success = demangle_prefix (work, &mangled, &decl); |
} |
if (success && (*mangled != '\0')) |
{ |
success = demangle_signature (work, &mangled, &decl); |
} |
if (work->constructor == 2) |
{ |
string_prepend (&decl, "global constructors keyed to "); |
work->constructor = 0; |
} |
else if (work->destructor == 2) |
{ |
string_prepend (&decl, "global destructors keyed to "); |
work->destructor = 0; |
} |
else if (work->dllimported == 1) |
{ |
string_prepend (&decl, "import stub for "); |
work->dllimported = 0; |
} |
demangled = mop_up (work, &decl, success); |
} |
work->constructor = s1; |
work->destructor = s2; |
work->static_type = s3; |
work->type_quals = s4; |
return demangled; |
} |
|
|
/* Clear out and squangling related storage */ |
static void |
squangle_mop_up (struct work_stuff *work) |
{ |
/* clean up the B and K type mangling types. */ |
forget_B_and_K_types (work); |
if (work -> btypevec != NULL) |
{ |
free ((char *) work -> btypevec); |
} |
if (work -> ktypevec != NULL) |
{ |
free ((char *) work -> ktypevec); |
} |
} |
|
|
/* Copy the work state and storage. */ |
|
static void |
work_stuff_copy_to_from (struct work_stuff *to, struct work_stuff *from) |
{ |
int i; |
|
delete_work_stuff (to); |
|
/* Shallow-copy scalars. */ |
memcpy (to, from, sizeof (*to)); |
|
/* Deep-copy dynamic storage. */ |
if (from->typevec_size) |
to->typevec = XNEWVEC (char *, from->typevec_size); |
|
for (i = 0; i < from->ntypes; i++) |
{ |
int len = strlen (from->typevec[i]) + 1; |
|
to->typevec[i] = XNEWVEC (char, len); |
memcpy (to->typevec[i], from->typevec[i], len); |
} |
|
if (from->ksize) |
to->ktypevec = XNEWVEC (char *, from->ksize); |
|
for (i = 0; i < from->numk; i++) |
{ |
int len = strlen (from->ktypevec[i]) + 1; |
|
to->ktypevec[i] = XNEWVEC (char, len); |
memcpy (to->ktypevec[i], from->ktypevec[i], len); |
} |
|
if (from->bsize) |
to->btypevec = XNEWVEC (char *, from->bsize); |
|
for (i = 0; i < from->numb; i++) |
{ |
int len = strlen (from->btypevec[i]) + 1; |
|
to->btypevec[i] = XNEWVEC (char , len); |
memcpy (to->btypevec[i], from->btypevec[i], len); |
} |
|
if (from->ntmpl_args) |
to->tmpl_argvec = XNEWVEC (char *, from->ntmpl_args); |
|
for (i = 0; i < from->ntmpl_args; i++) |
{ |
int len = strlen (from->tmpl_argvec[i]) + 1; |
|
to->tmpl_argvec[i] = XNEWVEC (char, len); |
memcpy (to->tmpl_argvec[i], from->tmpl_argvec[i], len); |
} |
|
if (from->previous_argument) |
{ |
to->previous_argument = XNEW (string); |
string_init (to->previous_argument); |
string_appends (to->previous_argument, from->previous_argument); |
} |
} |
|
|
/* Delete dynamic stuff in work_stuff that is not to be re-used. */ |
|
static void |
delete_non_B_K_work_stuff (struct work_stuff *work) |
{ |
/* Discard the remembered types, if any. */ |
|
forget_types (work); |
if (work -> typevec != NULL) |
{ |
free ((char *) work -> typevec); |
work -> typevec = NULL; |
work -> typevec_size = 0; |
} |
if (work->tmpl_argvec) |
{ |
int i; |
|
for (i = 0; i < work->ntmpl_args; i++) |
free ((char*) work->tmpl_argvec[i]); |
|
free ((char*) work->tmpl_argvec); |
work->tmpl_argvec = NULL; |
} |
if (work->previous_argument) |
{ |
string_delete (work->previous_argument); |
free ((char*) work->previous_argument); |
work->previous_argument = NULL; |
} |
} |
|
|
/* Delete all dynamic storage in work_stuff. */ |
static void |
delete_work_stuff (struct work_stuff *work) |
{ |
delete_non_B_K_work_stuff (work); |
squangle_mop_up (work); |
} |
|
|
/* Clear out any mangled storage */ |
|
static char * |
mop_up (struct work_stuff *work, string *declp, int success) |
{ |
char *demangled = NULL; |
|
delete_non_B_K_work_stuff (work); |
|
/* If demangling was successful, ensure that the demangled string is null |
terminated and return it. Otherwise, free the demangling decl. */ |
|
if (!success) |
{ |
string_delete (declp); |
} |
else |
{ |
string_appendn (declp, "", 1); |
demangled = declp->b; |
} |
return (demangled); |
} |
|
/* |
|
LOCAL FUNCTION |
|
demangle_signature -- demangle the signature part of a mangled name |
|
SYNOPSIS |
|
static int |
demangle_signature (struct work_stuff *work, const char **mangled, |
string *declp); |
|
DESCRIPTION |
|
Consume and demangle the signature portion of the mangled name. |
|
DECLP is the string where demangled output is being built. At |
entry it contains the demangled root name from the mangled name |
prefix. I.E. either a demangled operator name or the root function |
name. In some special cases, it may contain nothing. |
|
*MANGLED points to the current unconsumed location in the mangled |
name. As tokens are consumed and demangling is performed, the |
pointer is updated to continuously point at the next token to |
be consumed. |
|
Demangling GNU style mangled names is nasty because there is no |
explicit token that marks the start of the outermost function |
argument list. */ |
|
static int |
demangle_signature (struct work_stuff *work, |
const char **mangled, string *declp) |
{ |
int success = 1; |
int func_done = 0; |
int expect_func = 0; |
int expect_return_type = 0; |
const char *oldmangled = NULL; |
string trawname; |
string tname; |
|
while (success && (**mangled != '\0')) |
{ |
switch (**mangled) |
{ |
case 'Q': |
oldmangled = *mangled; |
success = demangle_qualified (work, mangled, declp, 1, 0); |
if (success) |
remember_type (work, oldmangled, *mangled - oldmangled); |
if (AUTO_DEMANGLING || GNU_DEMANGLING) |
expect_func = 1; |
oldmangled = NULL; |
break; |
|
case 'K': |
oldmangled = *mangled; |
success = demangle_qualified (work, mangled, declp, 1, 0); |
if (AUTO_DEMANGLING || GNU_DEMANGLING) |
{ |
expect_func = 1; |
} |
oldmangled = NULL; |
break; |
|
case 'S': |
/* Static member function */ |
if (oldmangled == NULL) |
{ |
oldmangled = *mangled; |
} |
(*mangled)++; |
work -> static_type = 1; |
break; |
|
case 'C': |
case 'V': |
case 'u': |
work->type_quals |= code_for_qualifier (**mangled); |
|
/* a qualified member function */ |
if (oldmangled == NULL) |
oldmangled = *mangled; |
(*mangled)++; |
break; |
|
case 'L': |
/* Local class name follows after "Lnnn_" */ |
if (HP_DEMANGLING) |
{ |
while (**mangled && (**mangled != '_')) |
(*mangled)++; |
if (!**mangled) |
success = 0; |
else |
(*mangled)++; |
} |
else |
success = 0; |
break; |
|
case '0': case '1': case '2': case '3': case '4': |
case '5': case '6': case '7': case '8': case '9': |
if (oldmangled == NULL) |
{ |
oldmangled = *mangled; |
} |
work->temp_start = -1; /* uppermost call to demangle_class */ |
success = demangle_class (work, mangled, declp); |
if (success) |
{ |
remember_type (work, oldmangled, *mangled - oldmangled); |
} |
if (AUTO_DEMANGLING || GNU_DEMANGLING || EDG_DEMANGLING) |
{ |
/* EDG and others will have the "F", so we let the loop cycle |
if we are looking at one. */ |
if (**mangled != 'F') |
expect_func = 1; |
} |
oldmangled = NULL; |
break; |
|
case 'B': |
{ |
string s; |
success = do_type (work, mangled, &s); |
if (success) |
{ |
string_append (&s, SCOPE_STRING (work)); |
string_prepends (declp, &s); |
string_delete (&s); |
} |
oldmangled = NULL; |
expect_func = 1; |
} |
break; |
|
case 'F': |
/* Function */ |
/* ARM/HP style demangling includes a specific 'F' character after |
the class name. For GNU style, it is just implied. So we can |
safely just consume any 'F' at this point and be compatible |
with either style. */ |
|
oldmangled = NULL; |
func_done = 1; |
(*mangled)++; |
|
/* For lucid/ARM/HP style we have to forget any types we might |
have remembered up to this point, since they were not argument |
types. GNU style considers all types seen as available for |
back references. See comment in demangle_args() */ |
|
if (LUCID_DEMANGLING || ARM_DEMANGLING || HP_DEMANGLING || EDG_DEMANGLING) |
{ |
forget_types (work); |
} |
success = demangle_args (work, mangled, declp); |
/* After picking off the function args, we expect to either |
find the function return type (preceded by an '_') or the |
end of the string. */ |
if (success && (AUTO_DEMANGLING || EDG_DEMANGLING) && **mangled == '_') |
{ |
++(*mangled); |
/* At this level, we do not care about the return type. */ |
success = do_type (work, mangled, &tname); |
string_delete (&tname); |
} |
|
break; |
|
case 't': |
/* G++ Template */ |
string_init(&trawname); |
string_init(&tname); |
if (oldmangled == NULL) |
{ |
oldmangled = *mangled; |
} |
success = demangle_template (work, mangled, &tname, |
&trawname, 1, 1); |
if (success) |
{ |
remember_type (work, oldmangled, *mangled - oldmangled); |
} |
string_append (&tname, SCOPE_STRING (work)); |
|
string_prepends(declp, &tname); |
if (work -> destructor & 1) |
{ |
string_prepend (&trawname, "~"); |
string_appends (declp, &trawname); |
work->destructor -= 1; |
} |
if ((work->constructor & 1) || (work->destructor & 1)) |
{ |
string_appends (declp, &trawname); |
work->constructor -= 1; |
} |
string_delete(&trawname); |
string_delete(&tname); |
oldmangled = NULL; |
expect_func = 1; |
break; |
|
case '_': |
if ((AUTO_DEMANGLING || GNU_DEMANGLING) && expect_return_type) |
{ |
/* Read the return type. */ |
string return_type; |
|
(*mangled)++; |
success = do_type (work, mangled, &return_type); |
APPEND_BLANK (&return_type); |
|
string_prepends (declp, &return_type); |
string_delete (&return_type); |
break; |
} |
else |
/* At the outermost level, we cannot have a return type specified, |
so if we run into another '_' at this point we are dealing with |
a mangled name that is either bogus, or has been mangled by |
some algorithm we don't know how to deal with. So just |
reject the entire demangling. */ |
/* However, "_nnn" is an expected suffix for alternate entry point |
numbered nnn for a function, with HP aCC, so skip over that |
without reporting failure. pai/1997-09-04 */ |
if (HP_DEMANGLING) |
{ |
(*mangled)++; |
while (**mangled && ISDIGIT ((unsigned char)**mangled)) |
(*mangled)++; |
} |
else |
success = 0; |
break; |
|
case 'H': |
if (AUTO_DEMANGLING || GNU_DEMANGLING) |
{ |
/* A G++ template function. Read the template arguments. */ |
success = demangle_template (work, mangled, declp, 0, 0, |
0); |
if (!(work->constructor & 1)) |
expect_return_type = 1; |
(*mangled)++; |
break; |
} |
else |
/* fall through */ |
{;} |
|
default: |
if (AUTO_DEMANGLING || GNU_DEMANGLING) |
{ |
/* Assume we have stumbled onto the first outermost function |
argument token, and start processing args. */ |
func_done = 1; |
success = demangle_args (work, mangled, declp); |
} |
else |
{ |
/* Non-GNU demanglers use a specific token to mark the start |
of the outermost function argument tokens. Typically 'F', |
for ARM/HP-demangling, for example. So if we find something |
we are not prepared for, it must be an error. */ |
success = 0; |
} |
break; |
} |
/* |
if (AUTO_DEMANGLING || GNU_DEMANGLING) |
*/ |
{ |
if (success && expect_func) |
{ |
func_done = 1; |
if (LUCID_DEMANGLING || ARM_DEMANGLING || EDG_DEMANGLING) |
{ |
forget_types (work); |
} |
success = demangle_args (work, mangled, declp); |
/* Since template include the mangling of their return types, |
we must set expect_func to 0 so that we don't try do |
demangle more arguments the next time we get here. */ |
expect_func = 0; |
} |
} |
} |
if (success && !func_done) |
{ |
if (AUTO_DEMANGLING || GNU_DEMANGLING) |
{ |
/* With GNU style demangling, bar__3foo is 'foo::bar(void)', and |
bar__3fooi is 'foo::bar(int)'. We get here when we find the |
first case, and need to ensure that the '(void)' gets added to |
the current declp. Note that with ARM/HP, the first case |
represents the name of a static data member 'foo::bar', |
which is in the current declp, so we leave it alone. */ |
success = demangle_args (work, mangled, declp); |
} |
} |
if (success && PRINT_ARG_TYPES) |
{ |
if (work->static_type) |
string_append (declp, " static"); |
if (work->type_quals != TYPE_UNQUALIFIED) |
{ |
APPEND_BLANK (declp); |
string_append (declp, qualifier_string (work->type_quals)); |
} |
} |
|
return (success); |
} |
|
#if 0 |
|
static int |
demangle_method_args (struct work_stuff *work, const char **mangled, |
string *declp) |
{ |
int success = 0; |
|
if (work -> static_type) |
{ |
string_append (declp, *mangled + 1); |
*mangled += strlen (*mangled); |
success = 1; |
} |
else |
{ |
success = demangle_args (work, mangled, declp); |
} |
return (success); |
} |
|
#endif |
|
static int |
demangle_template_template_parm (struct work_stuff *work, |
const char **mangled, string *tname) |
{ |
int i; |
int r; |
int need_comma = 0; |
int success = 1; |
string temp; |
|
string_append (tname, "template <"); |
/* get size of template parameter list */ |
if (get_count (mangled, &r)) |
{ |
for (i = 0; i < r; i++) |
{ |
if (need_comma) |
{ |
string_append (tname, ", "); |
} |
|
/* Z for type parameters */ |
if (**mangled == 'Z') |
{ |
(*mangled)++; |
string_append (tname, "class"); |
} |
/* z for template parameters */ |
else if (**mangled == 'z') |
{ |
(*mangled)++; |
success = |
demangle_template_template_parm (work, mangled, tname); |
if (!success) |
{ |
break; |
} |
} |
else |
{ |
/* temp is initialized in do_type */ |
success = do_type (work, mangled, &temp); |
if (success) |
{ |
string_appends (tname, &temp); |
} |
string_delete(&temp); |
if (!success) |
{ |
break; |
} |
} |
need_comma = 1; |
} |
|
} |
if (tname->p[-1] == '>') |
string_append (tname, " "); |
string_append (tname, "> class"); |
return (success); |
} |
|
static int |
demangle_expression (struct work_stuff *work, const char **mangled, |
string *s, type_kind_t tk) |
{ |
int need_operator = 0; |
int success; |
|
success = 1; |
string_appendn (s, "(", 1); |
(*mangled)++; |
while (success && **mangled != 'W' && **mangled != '\0') |
{ |
if (need_operator) |
{ |
size_t i; |
size_t len; |
|
success = 0; |
|
len = strlen (*mangled); |
|
for (i = 0; i < ARRAY_SIZE (optable); ++i) |
{ |
size_t l = strlen (optable[i].in); |
|
if (l <= len |
&& memcmp (optable[i].in, *mangled, l) == 0) |
{ |
string_appendn (s, " ", 1); |
string_append (s, optable[i].out); |
string_appendn (s, " ", 1); |
success = 1; |
(*mangled) += l; |
break; |
} |
} |
|
if (!success) |
break; |
} |
else |
need_operator = 1; |
|
success = demangle_template_value_parm (work, mangled, s, tk); |
} |
|
if (**mangled != 'W') |
success = 0; |
else |
{ |
string_appendn (s, ")", 1); |
(*mangled)++; |
} |
|
return success; |
} |
|
static int |
demangle_integral_value (struct work_stuff *work, |
const char **mangled, string *s) |
{ |
int success; |
|
if (**mangled == 'E') |
success = demangle_expression (work, mangled, s, tk_integral); |
else if (**mangled == 'Q' || **mangled == 'K') |
success = demangle_qualified (work, mangled, s, 0, 1); |
else |
{ |
int value; |
|
/* By default, we let the number decide whether we shall consume an |
underscore. */ |
int multidigit_without_leading_underscore = 0; |
int leave_following_underscore = 0; |
|
success = 0; |
|
if (**mangled == '_') |
{ |
if (mangled[0][1] == 'm') |
{ |
/* Since consume_count_with_underscores does not handle the |
`m'-prefix we must do it here, using consume_count and |
adjusting underscores: we have to consume the underscore |
matching the prepended one. */ |
multidigit_without_leading_underscore = 1; |
string_appendn (s, "-", 1); |
(*mangled) += 2; |
} |
else |
{ |
/* Do not consume a following underscore; |
consume_count_with_underscores will consume what |
should be consumed. */ |
leave_following_underscore = 1; |
} |
} |
else |
{ |
/* Negative numbers are indicated with a leading `m'. */ |
if (**mangled == 'm') |
{ |
string_appendn (s, "-", 1); |
(*mangled)++; |
} |
/* Since consume_count_with_underscores does not handle |
multi-digit numbers that do not start with an underscore, |
and this number can be an integer template parameter, |
we have to call consume_count. */ |
multidigit_without_leading_underscore = 1; |
/* These multi-digit numbers never end on an underscore, |
so if there is one then don't eat it. */ |
leave_following_underscore = 1; |
} |
|
/* We must call consume_count if we expect to remove a trailing |
underscore, since consume_count_with_underscores expects |
the leading underscore (that we consumed) if it is to handle |
multi-digit numbers. */ |
if (multidigit_without_leading_underscore) |
value = consume_count (mangled); |
else |
value = consume_count_with_underscores (mangled); |
|
if (value != -1) |
{ |
char buf[INTBUF_SIZE]; |
sprintf (buf, "%d", value); |
string_append (s, buf); |
|
/* Numbers not otherwise delimited, might have an underscore |
appended as a delimeter, which we should skip. |
|
??? This used to always remove a following underscore, which |
is wrong. If other (arbitrary) cases are followed by an |
underscore, we need to do something more radical. */ |
|
if ((value > 9 || multidigit_without_leading_underscore) |
&& ! leave_following_underscore |
&& **mangled == '_') |
(*mangled)++; |
|
/* All is well. */ |
success = 1; |
} |
} |
|
return success; |
} |
|
/* Demangle the real value in MANGLED. */ |
|
static int |
demangle_real_value (struct work_stuff *work, |
const char **mangled, string *s) |
{ |
if (**mangled == 'E') |
return demangle_expression (work, mangled, s, tk_real); |
|
if (**mangled == 'm') |
{ |
string_appendn (s, "-", 1); |
(*mangled)++; |
} |
while (ISDIGIT ((unsigned char)**mangled)) |
{ |
string_appendn (s, *mangled, 1); |
(*mangled)++; |
} |
if (**mangled == '.') /* fraction */ |
{ |
string_appendn (s, ".", 1); |
(*mangled)++; |
while (ISDIGIT ((unsigned char)**mangled)) |
{ |
string_appendn (s, *mangled, 1); |
(*mangled)++; |
} |
} |
if (**mangled == 'e') /* exponent */ |
{ |
string_appendn (s, "e", 1); |
(*mangled)++; |
while (ISDIGIT ((unsigned char)**mangled)) |
{ |
string_appendn (s, *mangled, 1); |
(*mangled)++; |
} |
} |
|
return 1; |
} |
|
static int |
demangle_template_value_parm (struct work_stuff *work, const char **mangled, |
string *s, type_kind_t tk) |
{ |
int success = 1; |
|
if (**mangled == 'Y') |
{ |
/* The next argument is a template parameter. */ |
int idx; |
|
(*mangled)++; |
idx = consume_count_with_underscores (mangled); |
if (idx == -1 |
|| (work->tmpl_argvec && idx >= work->ntmpl_args) |
|| consume_count_with_underscores (mangled) == -1) |
return -1; |
if (work->tmpl_argvec) |
string_append (s, work->tmpl_argvec[idx]); |
else |
string_append_template_idx (s, idx); |
} |
else if (tk == tk_integral) |
success = demangle_integral_value (work, mangled, s); |
else if (tk == tk_char) |
{ |
char tmp[2]; |
int val; |
if (**mangled == 'm') |
{ |
string_appendn (s, "-", 1); |
(*mangled)++; |
} |
string_appendn (s, "'", 1); |
val = consume_count(mangled); |
if (val <= 0) |
success = 0; |
else |
{ |
tmp[0] = (char)val; |
tmp[1] = '\0'; |
string_appendn (s, &tmp[0], 1); |
string_appendn (s, "'", 1); |
} |
} |
else if (tk == tk_bool) |
{ |
int val = consume_count (mangled); |
if (val == 0) |
string_appendn (s, "false", 5); |
else if (val == 1) |
string_appendn (s, "true", 4); |
else |
success = 0; |
} |
else if (tk == tk_real) |
success = demangle_real_value (work, mangled, s); |
else if (tk == tk_pointer || tk == tk_reference) |
{ |
if (**mangled == 'Q') |
success = demangle_qualified (work, mangled, s, |
/*isfuncname=*/0, |
/*append=*/1); |
else |
{ |
int symbol_len = consume_count (mangled); |
if (symbol_len == -1) |
return -1; |
if (symbol_len == 0) |
string_appendn (s, "0", 1); |
else |
{ |
char *p = XNEWVEC (char, symbol_len + 1), *q; |
strncpy (p, *mangled, symbol_len); |
p [symbol_len] = '\0'; |
/* We use cplus_demangle here, rather than |
internal_cplus_demangle, because the name of the entity |
mangled here does not make use of any of the squangling |
or type-code information we have built up thus far; it is |
mangled independently. */ |
q = cplus_demangle (p, work->options); |
if (tk == tk_pointer) |
string_appendn (s, "&", 1); |
/* FIXME: Pointer-to-member constants should get a |
qualifying class name here. */ |
if (q) |
{ |
string_append (s, q); |
free (q); |
} |
else |
string_append (s, p); |
free (p); |
} |
*mangled += symbol_len; |
} |
} |
|
return success; |
} |
|
/* Demangle the template name in MANGLED. The full name of the |
template (e.g., S<int>) is placed in TNAME. The name without the |
template parameters (e.g. S) is placed in TRAWNAME if TRAWNAME is |
non-NULL. If IS_TYPE is nonzero, this template is a type template, |
not a function template. If both IS_TYPE and REMEMBER are nonzero, |
the template is remembered in the list of back-referenceable |
types. */ |
|
static int |
demangle_template (struct work_stuff *work, const char **mangled, |
string *tname, string *trawname, |
int is_type, int remember) |
{ |
int i; |
int r; |
int need_comma = 0; |
int success = 0; |
int is_java_array = 0; |
string temp; |
|
(*mangled)++; |
if (is_type) |
{ |
/* get template name */ |
if (**mangled == 'z') |
{ |
int idx; |
(*mangled)++; |
(*mangled)++; |
|
idx = consume_count_with_underscores (mangled); |
if (idx == -1 |
|| (work->tmpl_argvec && idx >= work->ntmpl_args) |
|| consume_count_with_underscores (mangled) == -1) |
return (0); |
|
if (work->tmpl_argvec) |
{ |
string_append (tname, work->tmpl_argvec[idx]); |
if (trawname) |
string_append (trawname, work->tmpl_argvec[idx]); |
} |
else |
{ |
string_append_template_idx (tname, idx); |
if (trawname) |
string_append_template_idx (trawname, idx); |
} |
} |
else |
{ |
if ((r = consume_count (mangled)) <= 0 |
|| (int) strlen (*mangled) < r) |
{ |
return (0); |
} |
is_java_array = (work -> options & DMGL_JAVA) |
&& strncmp (*mangled, "JArray1Z", 8) == 0; |
if (! is_java_array) |
{ |
string_appendn (tname, *mangled, r); |
} |
if (trawname) |
string_appendn (trawname, *mangled, r); |
*mangled += r; |
} |
} |
if (!is_java_array) |
string_append (tname, "<"); |
/* get size of template parameter list */ |
if (!get_count (mangled, &r)) |
{ |
return (0); |
} |
if (!is_type) |
{ |
/* Create an array for saving the template argument values. */ |
work->tmpl_argvec = XNEWVEC (char *, r); |
work->ntmpl_args = r; |
for (i = 0; i < r; i++) |
work->tmpl_argvec[i] = 0; |
} |
for (i = 0; i < r; i++) |
{ |
if (need_comma) |
{ |
string_append (tname, ", "); |
} |
/* Z for type parameters */ |
if (**mangled == 'Z') |
{ |
(*mangled)++; |
/* temp is initialized in do_type */ |
success = do_type (work, mangled, &temp); |
if (success) |
{ |
string_appends (tname, &temp); |
|
if (!is_type) |
{ |
/* Save the template argument. */ |
int len = temp.p - temp.b; |
work->tmpl_argvec[i] = XNEWVEC (char, len + 1); |
memcpy (work->tmpl_argvec[i], temp.b, len); |
work->tmpl_argvec[i][len] = '\0'; |
} |
} |
string_delete(&temp); |
if (!success) |
{ |
break; |
} |
} |
/* z for template parameters */ |
else if (**mangled == 'z') |
{ |
int r2; |
(*mangled)++; |
success = demangle_template_template_parm (work, mangled, tname); |
|
if (success |
&& (r2 = consume_count (mangled)) > 0 |
&& (int) strlen (*mangled) >= r2) |
{ |
string_append (tname, " "); |
string_appendn (tname, *mangled, r2); |
if (!is_type) |
{ |
/* Save the template argument. */ |
int len = r2; |
work->tmpl_argvec[i] = XNEWVEC (char, len + 1); |
memcpy (work->tmpl_argvec[i], *mangled, len); |
work->tmpl_argvec[i][len] = '\0'; |
} |
*mangled += r2; |
} |
if (!success) |
{ |
break; |
} |
} |
else |
{ |
string param; |
string* s; |
|
/* otherwise, value parameter */ |
|
/* temp is initialized in do_type */ |
success = do_type (work, mangled, &temp); |
string_delete(&temp); |
if (!success) |
break; |
|
if (!is_type) |
{ |
s = ¶m; |
string_init (s); |
} |
else |
s = tname; |
|
success = demangle_template_value_parm (work, mangled, s, |
(type_kind_t) success); |
|
if (!success) |
{ |
if (!is_type) |
string_delete (s); |
success = 0; |
break; |
} |
|
if (!is_type) |
{ |
int len = s->p - s->b; |
work->tmpl_argvec[i] = XNEWVEC (char, len + 1); |
memcpy (work->tmpl_argvec[i], s->b, len); |
work->tmpl_argvec[i][len] = '\0'; |
|
string_appends (tname, s); |
string_delete (s); |
} |
} |
need_comma = 1; |
} |
if (is_java_array) |
{ |
string_append (tname, "[]"); |
} |
else |
{ |
if (tname->p[-1] == '>') |
string_append (tname, " "); |
string_append (tname, ">"); |
} |
|
if (is_type && remember) |
{ |
const int bindex = register_Btype (work); |
remember_Btype (work, tname->b, LEN_STRING (tname), bindex); |
} |
|
/* |
if (work -> static_type) |
{ |
string_append (declp, *mangled + 1); |
*mangled += strlen (*mangled); |
success = 1; |
} |
else |
{ |
success = demangle_args (work, mangled, declp); |
} |
} |
*/ |
return (success); |
} |
|
static int |
arm_pt (struct work_stuff *work, const char *mangled, |
int n, const char **anchor, const char **args) |
{ |
/* Check if ARM template with "__pt__" in it ("parameterized type") */ |
/* Allow HP also here, because HP's cfront compiler follows ARM to some extent */ |
if ((ARM_DEMANGLING || HP_DEMANGLING) && (*anchor = strstr (mangled, "__pt__"))) |
{ |
int len; |
*args = *anchor + 6; |
len = consume_count (args); |
if (len == -1) |
return 0; |
if (*args + len == mangled + n && **args == '_') |
{ |
++*args; |
return 1; |
} |
} |
if (AUTO_DEMANGLING || EDG_DEMANGLING) |
{ |
if ((*anchor = strstr (mangled, "__tm__")) |
|| (*anchor = strstr (mangled, "__ps__")) |
|| (*anchor = strstr (mangled, "__pt__"))) |
{ |
int len; |
*args = *anchor + 6; |
len = consume_count (args); |
if (len == -1) |
return 0; |
if (*args + len == mangled + n && **args == '_') |
{ |
++*args; |
return 1; |
} |
} |
else if ((*anchor = strstr (mangled, "__S"))) |
{ |
int len; |
*args = *anchor + 3; |
len = consume_count (args); |
if (len == -1) |
return 0; |
if (*args + len == mangled + n && **args == '_') |
{ |
++*args; |
return 1; |
} |
} |
} |
|
return 0; |
} |
|
static void |
demangle_arm_hp_template (struct work_stuff *work, const char **mangled, |
int n, string *declp) |
{ |
const char *p; |
const char *args; |
const char *e = *mangled + n; |
string arg; |
|
/* Check for HP aCC template spec: classXt1t2 where t1, t2 are |
template args */ |
if (HP_DEMANGLING && ((*mangled)[n] == 'X')) |
{ |
char *start_spec_args = NULL; |
int hold_options; |
|
/* First check for and omit template specialization pseudo-arguments, |
such as in "Spec<#1,#1.*>" */ |
start_spec_args = strchr (*mangled, '<'); |
if (start_spec_args && (start_spec_args - *mangled < n)) |
string_appendn (declp, *mangled, start_spec_args - *mangled); |
else |
string_appendn (declp, *mangled, n); |
(*mangled) += n + 1; |
string_init (&arg); |
if (work->temp_start == -1) /* non-recursive call */ |
work->temp_start = declp->p - declp->b; |
|
/* We want to unconditionally demangle parameter types in |
template parameters. */ |
hold_options = work->options; |
work->options |= DMGL_PARAMS; |
|
string_append (declp, "<"); |
while (1) |
{ |
string_delete (&arg); |
switch (**mangled) |
{ |
case 'T': |
/* 'T' signals a type parameter */ |
(*mangled)++; |
if (!do_type (work, mangled, &arg)) |
goto hpacc_template_args_done; |
break; |
|
case 'U': |
case 'S': |
/* 'U' or 'S' signals an integral value */ |
if (!do_hpacc_template_const_value (work, mangled, &arg)) |
goto hpacc_template_args_done; |
break; |
|
case 'A': |
/* 'A' signals a named constant expression (literal) */ |
if (!do_hpacc_template_literal (work, mangled, &arg)) |
goto hpacc_template_args_done; |
break; |
|
default: |
/* Today, 1997-09-03, we have only the above types |
of template parameters */ |
/* FIXME: maybe this should fail and return null */ |
goto hpacc_template_args_done; |
} |
string_appends (declp, &arg); |
/* Check if we're at the end of template args. |
0 if at end of static member of template class, |
_ if done with template args for a function */ |
if ((**mangled == '\000') || (**mangled == '_')) |
break; |
else |
string_append (declp, ","); |
} |
hpacc_template_args_done: |
string_append (declp, ">"); |
string_delete (&arg); |
if (**mangled == '_') |
(*mangled)++; |
work->options = hold_options; |
return; |
} |
/* ARM template? (Also handles HP cfront extensions) */ |
else if (arm_pt (work, *mangled, n, &p, &args)) |
{ |
int hold_options; |
string type_str; |
|
string_init (&arg); |
string_appendn (declp, *mangled, p - *mangled); |
if (work->temp_start == -1) /* non-recursive call */ |
work->temp_start = declp->p - declp->b; |
|
/* We want to unconditionally demangle parameter types in |
template parameters. */ |
hold_options = work->options; |
work->options |= DMGL_PARAMS; |
|
string_append (declp, "<"); |
/* should do error checking here */ |
while (args < e) { |
string_delete (&arg); |
|
/* Check for type or literal here */ |
switch (*args) |
{ |
/* HP cfront extensions to ARM for template args */ |
/* spec: Xt1Lv1 where t1 is a type, v1 is a literal value */ |
/* FIXME: We handle only numeric literals for HP cfront */ |
case 'X': |
/* A typed constant value follows */ |
args++; |
if (!do_type (work, &args, &type_str)) |
goto cfront_template_args_done; |
string_append (&arg, "("); |
string_appends (&arg, &type_str); |
string_delete (&type_str); |
string_append (&arg, ")"); |
if (*args != 'L') |
goto cfront_template_args_done; |
args++; |
/* Now snarf a literal value following 'L' */ |
if (!snarf_numeric_literal (&args, &arg)) |
goto cfront_template_args_done; |
break; |
|
case 'L': |
/* Snarf a literal following 'L' */ |
args++; |
if (!snarf_numeric_literal (&args, &arg)) |
goto cfront_template_args_done; |
break; |
default: |
/* Not handling other HP cfront stuff */ |
{ |
const char* old_args = args; |
if (!do_type (work, &args, &arg)) |
goto cfront_template_args_done; |
|
/* Fail if we didn't make any progress: prevent infinite loop. */ |
if (args == old_args) |
{ |
work->options = hold_options; |
return; |
} |
} |
} |
string_appends (declp, &arg); |
string_append (declp, ","); |
} |
cfront_template_args_done: |
string_delete (&arg); |
if (args >= e) |
--declp->p; /* remove extra comma */ |
string_append (declp, ">"); |
work->options = hold_options; |
} |
else if (n>10 && strncmp (*mangled, "_GLOBAL_", 8) == 0 |
&& (*mangled)[9] == 'N' |
&& (*mangled)[8] == (*mangled)[10] |
&& strchr (cplus_markers, (*mangled)[8])) |
{ |
/* A member of the anonymous namespace. */ |
string_append (declp, "{anonymous}"); |
} |
else |
{ |
if (work->temp_start == -1) /* non-recursive call only */ |
work->temp_start = 0; /* disable in recursive calls */ |
string_appendn (declp, *mangled, n); |
} |
*mangled += n; |
} |
|
/* Extract a class name, possibly a template with arguments, from the |
mangled string; qualifiers, local class indicators, etc. have |
already been dealt with */ |
|
static int |
demangle_class_name (struct work_stuff *work, const char **mangled, |
string *declp) |
{ |
int n; |
int success = 0; |
|
n = consume_count (mangled); |
if (n == -1) |
return 0; |
if ((int) strlen (*mangled) >= n) |
{ |
demangle_arm_hp_template (work, mangled, n, declp); |
success = 1; |
} |
|
return (success); |
} |
|
/* |
|
LOCAL FUNCTION |
|
demangle_class -- demangle a mangled class sequence |
|
SYNOPSIS |
|
static int |
demangle_class (struct work_stuff *work, const char **mangled, |
strint *declp) |
|
DESCRIPTION |
|
DECLP points to the buffer into which demangling is being done. |
|
*MANGLED points to the current token to be demangled. On input, |
it points to a mangled class (I.E. "3foo", "13verylongclass", etc.) |
On exit, it points to the next token after the mangled class on |
success, or the first unconsumed token on failure. |
|
If the CONSTRUCTOR or DESTRUCTOR flags are set in WORK, then |
we are demangling a constructor or destructor. In this case |
we prepend "class::class" or "class::~class" to DECLP. |
|
Otherwise, we prepend "class::" to the current DECLP. |
|
Reset the constructor/destructor flags once they have been |
"consumed". This allows demangle_class to be called later during |
the same demangling, to do normal class demangling. |
|
Returns 1 if demangling is successful, 0 otherwise. |
|
*/ |
|
static int |
demangle_class (struct work_stuff *work, const char **mangled, string *declp) |
{ |
int success = 0; |
int btype; |
string class_name; |
char *save_class_name_end = 0; |
|
string_init (&class_name); |
btype = register_Btype (work); |
if (demangle_class_name (work, mangled, &class_name)) |
{ |
save_class_name_end = class_name.p; |
if ((work->constructor & 1) || (work->destructor & 1)) |
{ |
/* adjust so we don't include template args */ |
if (work->temp_start && (work->temp_start != -1)) |
{ |
class_name.p = class_name.b + work->temp_start; |
} |
string_prepends (declp, &class_name); |
if (work -> destructor & 1) |
{ |
string_prepend (declp, "~"); |
work -> destructor -= 1; |
} |
else |
{ |
work -> constructor -= 1; |
} |
} |
class_name.p = save_class_name_end; |
remember_Ktype (work, class_name.b, LEN_STRING(&class_name)); |
remember_Btype (work, class_name.b, LEN_STRING(&class_name), btype); |
string_prepend (declp, SCOPE_STRING (work)); |
string_prepends (declp, &class_name); |
success = 1; |
} |
string_delete (&class_name); |
return (success); |
} |
|
|
/* Called when there's a "__" in the mangled name, with `scan' pointing to |
the rightmost guess. |
|
Find the correct "__"-sequence where the function name ends and the |
signature starts, which is ambiguous with GNU mangling. |
Call demangle_signature here, so we can make sure we found the right |
one; *mangled will be consumed so caller will not make further calls to |
demangle_signature. */ |
|
static int |
iterate_demangle_function (struct work_stuff *work, const char **mangled, |
string *declp, const char *scan) |
{ |
const char *mangle_init = *mangled; |
int success = 0; |
string decl_init; |
struct work_stuff work_init; |
|
if (*(scan + 2) == '\0') |
return 0; |
|
/* Do not iterate for some demangling modes, or if there's only one |
"__"-sequence. This is the normal case. */ |
if (ARM_DEMANGLING || LUCID_DEMANGLING || HP_DEMANGLING || EDG_DEMANGLING |
|| strstr (scan + 2, "__") == NULL) |
return demangle_function_name (work, mangled, declp, scan); |
|
/* Save state so we can restart if the guess at the correct "__" was |
wrong. */ |
string_init (&decl_init); |
string_appends (&decl_init, declp); |
memset (&work_init, 0, sizeof work_init); |
work_stuff_copy_to_from (&work_init, work); |
|
/* Iterate over occurrences of __, allowing names and types to have a |
"__" sequence in them. We must start with the first (not the last) |
occurrence, since "__" most often occur between independent mangled |
parts, hence starting at the last occurence inside a signature |
might get us a "successful" demangling of the signature. */ |
|
while (scan[2]) |
{ |
if (demangle_function_name (work, mangled, declp, scan)) |
{ |
success = demangle_signature (work, mangled, declp); |
if (success) |
break; |
} |
|
/* Reset demangle state for the next round. */ |
*mangled = mangle_init; |
string_clear (declp); |
string_appends (declp, &decl_init); |
work_stuff_copy_to_from (work, &work_init); |
|
/* Leave this underscore-sequence. */ |
scan += 2; |
|
/* Scan for the next "__" sequence. */ |
while (*scan && (scan[0] != '_' || scan[1] != '_')) |
scan++; |
|
/* Move to last "__" in this sequence. */ |
while (*scan && *scan == '_') |
scan++; |
scan -= 2; |
} |
|
/* Delete saved state. */ |
delete_work_stuff (&work_init); |
string_delete (&decl_init); |
|
return success; |
} |
|
/* |
|
LOCAL FUNCTION |
|
demangle_prefix -- consume the mangled name prefix and find signature |
|
SYNOPSIS |
|
static int |
demangle_prefix (struct work_stuff *work, const char **mangled, |
string *declp); |
|
DESCRIPTION |
|
Consume and demangle the prefix of the mangled name. |
While processing the function name root, arrange to call |
demangle_signature if the root is ambiguous. |
|
DECLP points to the string buffer into which demangled output is |
placed. On entry, the buffer is empty. On exit it contains |
the root function name, the demangled operator name, or in some |
special cases either nothing or the completely demangled result. |
|
MANGLED points to the current pointer into the mangled name. As each |
token of the mangled name is consumed, it is updated. Upon entry |
the current mangled name pointer points to the first character of |
the mangled name. Upon exit, it should point to the first character |
of the signature if demangling was successful, or to the first |
unconsumed character if demangling of the prefix was unsuccessful. |
|
Returns 1 on success, 0 otherwise. |
*/ |
|
static int |
demangle_prefix (struct work_stuff *work, const char **mangled, |
string *declp) |
{ |
int success = 1; |
const char *scan; |
int i; |
|
if (strlen(*mangled) > 6 |
&& (strncmp(*mangled, "_imp__", 6) == 0 |
|| strncmp(*mangled, "__imp_", 6) == 0)) |
{ |
/* it's a symbol imported from a PE dynamic library. Check for both |
new style prefix _imp__ and legacy __imp_ used by older versions |
of dlltool. */ |
(*mangled) += 6; |
work->dllimported = 1; |
} |
else if (strlen(*mangled) >= 11 && strncmp(*mangled, "_GLOBAL_", 8) == 0) |
{ |
char *marker = strchr (cplus_markers, (*mangled)[8]); |
if (marker != NULL && *marker == (*mangled)[10]) |
{ |
if ((*mangled)[9] == 'D') |
{ |
/* it's a GNU global destructor to be executed at program exit */ |
(*mangled) += 11; |
work->destructor = 2; |
if (gnu_special (work, mangled, declp)) |
return success; |
} |
else if ((*mangled)[9] == 'I') |
{ |
/* it's a GNU global constructor to be executed at program init */ |
(*mangled) += 11; |
work->constructor = 2; |
if (gnu_special (work, mangled, declp)) |
return success; |
} |
} |
} |
else if ((ARM_DEMANGLING || HP_DEMANGLING || EDG_DEMANGLING) && strncmp(*mangled, "__std__", 7) == 0) |
{ |
/* it's a ARM global destructor to be executed at program exit */ |
(*mangled) += 7; |
work->destructor = 2; |
} |
else if ((ARM_DEMANGLING || HP_DEMANGLING || EDG_DEMANGLING) && strncmp(*mangled, "__sti__", 7) == 0) |
{ |
/* it's a ARM global constructor to be executed at program initial */ |
(*mangled) += 7; |
work->constructor = 2; |
} |
|
/* This block of code is a reduction in strength time optimization |
of: |
scan = strstr (*mangled, "__"); */ |
|
{ |
scan = *mangled; |
|
do { |
scan = strchr (scan, '_'); |
} while (scan != NULL && *++scan != '_'); |
|
if (scan != NULL) --scan; |
} |
|
if (scan != NULL) |
{ |
/* We found a sequence of two or more '_', ensure that we start at |
the last pair in the sequence. */ |
i = strspn (scan, "_"); |
if (i > 2) |
{ |
scan += (i - 2); |
} |
} |
|
if (scan == NULL) |
{ |
success = 0; |
} |
else if (work -> static_type) |
{ |
if (!ISDIGIT ((unsigned char)scan[0]) && (scan[0] != 't')) |
{ |
success = 0; |
} |
} |
else if ((scan == *mangled) |
&& (ISDIGIT ((unsigned char)scan[2]) || (scan[2] == 'Q') |
|| (scan[2] == 't') || (scan[2] == 'K') || (scan[2] == 'H'))) |
{ |
/* The ARM says nothing about the mangling of local variables. |
But cfront mangles local variables by prepending __<nesting_level> |
to them. As an extension to ARM demangling we handle this case. */ |
if ((LUCID_DEMANGLING || ARM_DEMANGLING || HP_DEMANGLING) |
&& ISDIGIT ((unsigned char)scan[2])) |
{ |
*mangled = scan + 2; |
consume_count (mangled); |
string_append (declp, *mangled); |
*mangled += strlen (*mangled); |
success = 1; |
} |
else |
{ |
/* A GNU style constructor starts with __[0-9Qt]. But cfront uses |
names like __Q2_3foo3bar for nested type names. So don't accept |
this style of constructor for cfront demangling. A GNU |
style member-template constructor starts with 'H'. */ |
if (!(LUCID_DEMANGLING || ARM_DEMANGLING || HP_DEMANGLING || EDG_DEMANGLING)) |
work -> constructor += 1; |
*mangled = scan + 2; |
} |
} |
else if (ARM_DEMANGLING && scan[2] == 'p' && scan[3] == 't') |
{ |
/* Cfront-style parameterized type. Handled later as a signature. */ |
success = 1; |
|
/* ARM template? */ |
demangle_arm_hp_template (work, mangled, strlen (*mangled), declp); |
} |
else if (EDG_DEMANGLING && ((scan[2] == 't' && scan[3] == 'm') |
|| (scan[2] == 'p' && scan[3] == 's') |
|| (scan[2] == 'p' && scan[3] == 't'))) |
{ |
/* EDG-style parameterized type. Handled later as a signature. */ |
success = 1; |
|
/* EDG template? */ |
demangle_arm_hp_template (work, mangled, strlen (*mangled), declp); |
} |
else if ((scan == *mangled) && !ISDIGIT ((unsigned char)scan[2]) |
&& (scan[2] != 't')) |
{ |
/* Mangled name starts with "__". Skip over any leading '_' characters, |
then find the next "__" that separates the prefix from the signature. |
*/ |
if (!(ARM_DEMANGLING || LUCID_DEMANGLING || HP_DEMANGLING || EDG_DEMANGLING) |
|| (arm_special (mangled, declp) == 0)) |
{ |
while (*scan == '_') |
{ |
scan++; |
} |
if ((scan = strstr (scan, "__")) == NULL || (*(scan + 2) == '\0')) |
{ |
/* No separator (I.E. "__not_mangled"), or empty signature |
(I.E. "__not_mangled_either__") */ |
success = 0; |
} |
else |
return iterate_demangle_function (work, mangled, declp, scan); |
} |
} |
else if (*(scan + 2) != '\0') |
{ |
/* Mangled name does not start with "__" but does have one somewhere |
in there with non empty stuff after it. Looks like a global |
function name. Iterate over all "__":s until the right |
one is found. */ |
return iterate_demangle_function (work, mangled, declp, scan); |
} |
else |
{ |
/* Doesn't look like a mangled name */ |
success = 0; |
} |
|
if (!success && (work->constructor == 2 || work->destructor == 2)) |
{ |
string_append (declp, *mangled); |
*mangled += strlen (*mangled); |
success = 1; |
} |
return (success); |
} |
|
/* |
|
LOCAL FUNCTION |
|
gnu_special -- special handling of gnu mangled strings |
|
SYNOPSIS |
|
static int |
gnu_special (struct work_stuff *work, const char **mangled, |
string *declp); |
|
|
DESCRIPTION |
|
Process some special GNU style mangling forms that don't fit |
the normal pattern. For example: |
|
_$_3foo (destructor for class foo) |
_vt$foo (foo virtual table) |
_vt$foo$bar (foo::bar virtual table) |
__vt_foo (foo virtual table, new style with thunks) |
_3foo$varname (static data member) |
_Q22rs2tu$vw (static data member) |
__t6vector1Zii (constructor with template) |
__thunk_4__$_7ostream (virtual function thunk) |
*/ |
|
static int |
gnu_special (struct work_stuff *work, const char **mangled, string *declp) |
{ |
int n; |
int success = 1; |
const char *p; |
|
if ((*mangled)[0] == '_' |
&& strchr (cplus_markers, (*mangled)[1]) != NULL |
&& (*mangled)[2] == '_') |
{ |
/* Found a GNU style destructor, get past "_<CPLUS_MARKER>_" */ |
(*mangled) += 3; |
work -> destructor += 1; |
} |
else if ((*mangled)[0] == '_' |
&& (((*mangled)[1] == '_' |
&& (*mangled)[2] == 'v' |
&& (*mangled)[3] == 't' |
&& (*mangled)[4] == '_') |
|| ((*mangled)[1] == 'v' |
&& (*mangled)[2] == 't' |
&& strchr (cplus_markers, (*mangled)[3]) != NULL))) |
{ |
/* Found a GNU style virtual table, get past "_vt<CPLUS_MARKER>" |
and create the decl. Note that we consume the entire mangled |
input string, which means that demangle_signature has no work |
to do. */ |
if ((*mangled)[2] == 'v') |
(*mangled) += 5; /* New style, with thunks: "__vt_" */ |
else |
(*mangled) += 4; /* Old style, no thunks: "_vt<CPLUS_MARKER>" */ |
while (**mangled != '\0') |
{ |
switch (**mangled) |
{ |
case 'Q': |
case 'K': |
success = demangle_qualified (work, mangled, declp, 0, 1); |
break; |
case 't': |
success = demangle_template (work, mangled, declp, 0, 1, |
1); |
break; |
default: |
if (ISDIGIT((unsigned char)*mangled[0])) |
{ |
n = consume_count(mangled); |
/* We may be seeing a too-large size, or else a |
".<digits>" indicating a static local symbol. In |
any case, declare victory and move on; *don't* try |
to use n to allocate. */ |
if (n > (int) strlen (*mangled)) |
{ |
success = 1; |
break; |
} |
} |
else |
{ |
n = strcspn (*mangled, cplus_markers); |
} |
string_appendn (declp, *mangled, n); |
(*mangled) += n; |
} |
|
p = strpbrk (*mangled, cplus_markers); |
if (success && ((p == NULL) || (p == *mangled))) |
{ |
if (p != NULL) |
{ |
string_append (declp, SCOPE_STRING (work)); |
(*mangled)++; |
} |
} |
else |
{ |
success = 0; |
break; |
} |
} |
if (success) |
string_append (declp, " virtual table"); |
} |
else if ((*mangled)[0] == '_' |
&& (strchr("0123456789Qt", (*mangled)[1]) != NULL) |
&& (p = strpbrk (*mangled, cplus_markers)) != NULL) |
{ |
/* static data member, "_3foo$varname" for example */ |
(*mangled)++; |
switch (**mangled) |
{ |
case 'Q': |
case 'K': |
success = demangle_qualified (work, mangled, declp, 0, 1); |
break; |
case 't': |
success = demangle_template (work, mangled, declp, 0, 1, 1); |
break; |
default: |
n = consume_count (mangled); |
if (n < 0 || n > (long) strlen (*mangled)) |
{ |
success = 0; |
break; |
} |
|
if (n > 10 && strncmp (*mangled, "_GLOBAL_", 8) == 0 |
&& (*mangled)[9] == 'N' |
&& (*mangled)[8] == (*mangled)[10] |
&& strchr (cplus_markers, (*mangled)[8])) |
{ |
/* A member of the anonymous namespace. There's information |
about what identifier or filename it was keyed to, but |
it's just there to make the mangled name unique; we just |
step over it. */ |
string_append (declp, "{anonymous}"); |
(*mangled) += n; |
|
/* Now p points to the marker before the N, so we need to |
update it to the first marker after what we consumed. */ |
p = strpbrk (*mangled, cplus_markers); |
break; |
} |
|
string_appendn (declp, *mangled, n); |
(*mangled) += n; |
} |
if (success && (p == *mangled)) |
{ |
/* Consumed everything up to the cplus_marker, append the |
variable name. */ |
(*mangled)++; |
string_append (declp, SCOPE_STRING (work)); |
n = strlen (*mangled); |
string_appendn (declp, *mangled, n); |
(*mangled) += n; |
} |
else |
{ |
success = 0; |
} |
} |
else if (strncmp (*mangled, "__thunk_", 8) == 0) |
{ |
int delta; |
|
(*mangled) += 8; |
delta = consume_count (mangled); |
if (delta == -1) |
success = 0; |
else |
{ |
char *method = internal_cplus_demangle (work, ++*mangled); |
|
if (method) |
{ |
char buf[50]; |
sprintf (buf, "virtual function thunk (delta:%d) for ", -delta); |
string_append (declp, buf); |
string_append (declp, method); |
free (method); |
n = strlen (*mangled); |
(*mangled) += n; |
} |
else |
{ |
success = 0; |
} |
} |
} |
else if (strncmp (*mangled, "__t", 3) == 0 |
&& ((*mangled)[3] == 'i' || (*mangled)[3] == 'f')) |
{ |
p = (*mangled)[3] == 'i' ? " type_info node" : " type_info function"; |
(*mangled) += 4; |
switch (**mangled) |
{ |
case 'Q': |
case 'K': |
success = demangle_qualified (work, mangled, declp, 0, 1); |
break; |
case 't': |
success = demangle_template (work, mangled, declp, 0, 1, 1); |
break; |
default: |
success = do_type (work, mangled, declp); |
break; |
} |
if (success && **mangled != '\0') |
success = 0; |
if (success) |
string_append (declp, p); |
} |
else |
{ |
success = 0; |
} |
return (success); |
} |
|
static void |
recursively_demangle(struct work_stuff *work, const char **mangled, |
string *result, int namelength) |
{ |
char * recurse = (char *)NULL; |
char * recurse_dem = (char *)NULL; |
|
recurse = XNEWVEC (char, namelength + 1); |
memcpy (recurse, *mangled, namelength); |
recurse[namelength] = '\000'; |
|
recurse_dem = cplus_demangle (recurse, work->options); |
|
if (recurse_dem) |
{ |
string_append (result, recurse_dem); |
free (recurse_dem); |
} |
else |
{ |
string_appendn (result, *mangled, namelength); |
} |
free (recurse); |
*mangled += namelength; |
} |
|
/* |
|
LOCAL FUNCTION |
|
arm_special -- special handling of ARM/lucid mangled strings |
|
SYNOPSIS |
|
static int |
arm_special (const char **mangled, |
string *declp); |
|
|
DESCRIPTION |
|
Process some special ARM style mangling forms that don't fit |
the normal pattern. For example: |
|
__vtbl__3foo (foo virtual table) |
__vtbl__3foo__3bar (bar::foo virtual table) |
|
*/ |
|
static int |
arm_special (const char **mangled, string *declp) |
{ |
int n; |
int success = 1; |
const char *scan; |
|
if (strncmp (*mangled, ARM_VTABLE_STRING, ARM_VTABLE_STRLEN) == 0) |
{ |
/* Found a ARM style virtual table, get past ARM_VTABLE_STRING |
and create the decl. Note that we consume the entire mangled |
input string, which means that demangle_signature has no work |
to do. */ |
scan = *mangled + ARM_VTABLE_STRLEN; |
while (*scan != '\0') /* first check it can be demangled */ |
{ |
n = consume_count (&scan); |
if (n == -1) |
{ |
return (0); /* no good */ |
} |
scan += n; |
if (scan[0] == '_' && scan[1] == '_') |
{ |
scan += 2; |
} |
} |
(*mangled) += ARM_VTABLE_STRLEN; |
while (**mangled != '\0') |
{ |
n = consume_count (mangled); |
if (n == -1 |
|| n > (long) strlen (*mangled)) |
return 0; |
string_prependn (declp, *mangled, n); |
(*mangled) += n; |
if ((*mangled)[0] == '_' && (*mangled)[1] == '_') |
{ |
string_prepend (declp, "::"); |
(*mangled) += 2; |
} |
} |
string_append (declp, " virtual table"); |
} |
else |
{ |
success = 0; |
} |
return (success); |
} |
|
/* |
|
LOCAL FUNCTION |
|
demangle_qualified -- demangle 'Q' qualified name strings |
|
SYNOPSIS |
|
static int |
demangle_qualified (struct work_stuff *, const char *mangled, |
string *result, int isfuncname, int append); |
|
DESCRIPTION |
|
Demangle a qualified name, such as "Q25Outer5Inner" which is |
the mangled form of "Outer::Inner". The demangled output is |
prepended or appended to the result string according to the |
state of the append flag. |
|
If isfuncname is nonzero, then the qualified name we are building |
is going to be used as a member function name, so if it is a |
constructor or destructor function, append an appropriate |
constructor or destructor name. I.E. for the above example, |
the result for use as a constructor is "Outer::Inner::Inner" |
and the result for use as a destructor is "Outer::Inner::~Inner". |
|
BUGS |
|
Numeric conversion is ASCII dependent (FIXME). |
|
*/ |
|
static int |
demangle_qualified (struct work_stuff *work, const char **mangled, |
string *result, int isfuncname, int append) |
{ |
int qualifiers = 0; |
int success = 1; |
char num[2]; |
string temp; |
string last_name; |
int bindex = register_Btype (work); |
|
/* We only make use of ISFUNCNAME if the entity is a constructor or |
destructor. */ |
isfuncname = (isfuncname |
&& ((work->constructor & 1) || (work->destructor & 1))); |
|
string_init (&temp); |
string_init (&last_name); |
|
if ((*mangled)[0] == 'K') |
{ |
/* Squangling qualified name reuse */ |
int idx; |
(*mangled)++; |
idx = consume_count_with_underscores (mangled); |
if (idx == -1 || idx >= work -> numk) |
success = 0; |
else |
string_append (&temp, work -> ktypevec[idx]); |
} |
else |
switch ((*mangled)[1]) |
{ |
case '_': |
/* GNU mangled name with more than 9 classes. The count is preceded |
by an underscore (to distinguish it from the <= 9 case) and followed |
by an underscore. */ |
(*mangled)++; |
qualifiers = consume_count_with_underscores (mangled); |
if (qualifiers == -1) |
success = 0; |
break; |
|
case '1': |
case '2': |
case '3': |
case '4': |
case '5': |
case '6': |
case '7': |
case '8': |
case '9': |
/* The count is in a single digit. */ |
num[0] = (*mangled)[1]; |
num[1] = '\0'; |
qualifiers = atoi (num); |
|
/* If there is an underscore after the digit, skip it. This is |
said to be for ARM-qualified names, but the ARM makes no |
mention of such an underscore. Perhaps cfront uses one. */ |
if ((*mangled)[2] == '_') |
{ |
(*mangled)++; |
} |
(*mangled) += 2; |
break; |
|
case '0': |
default: |
success = 0; |
} |
|
if (!success) |
return success; |
|
/* Pick off the names and collect them in the temp buffer in the order |
in which they are found, separated by '::'. */ |
|
while (qualifiers-- > 0) |
{ |
int remember_K = 1; |
string_clear (&last_name); |
|
if (*mangled[0] == '_') |
(*mangled)++; |
|
if (*mangled[0] == 't') |
{ |
/* Here we always append to TEMP since we will want to use |
the template name without the template parameters as a |
constructor or destructor name. The appropriate |
(parameter-less) value is returned by demangle_template |
in LAST_NAME. We do not remember the template type here, |
in order to match the G++ mangling algorithm. */ |
success = demangle_template(work, mangled, &temp, |
&last_name, 1, 0); |
if (!success) |
break; |
} |
else if (*mangled[0] == 'K') |
{ |
int idx; |
(*mangled)++; |
idx = consume_count_with_underscores (mangled); |
if (idx == -1 || idx >= work->numk) |
success = 0; |
else |
string_append (&temp, work->ktypevec[idx]); |
remember_K = 0; |
|
if (!success) break; |
} |
else |
{ |
if (EDG_DEMANGLING) |
{ |
int namelength; |
/* Now recursively demangle the qualifier |
* This is necessary to deal with templates in |
* mangling styles like EDG */ |
namelength = consume_count (mangled); |
if (namelength == -1) |
{ |
success = 0; |
break; |
} |
recursively_demangle(work, mangled, &temp, namelength); |
} |
else |
{ |
string_delete (&last_name); |
success = do_type (work, mangled, &last_name); |
if (!success) |
break; |
string_appends (&temp, &last_name); |
} |
} |
|
if (remember_K) |
remember_Ktype (work, temp.b, LEN_STRING (&temp)); |
|
if (qualifiers > 0) |
string_append (&temp, SCOPE_STRING (work)); |
} |
|
remember_Btype (work, temp.b, LEN_STRING (&temp), bindex); |
|
/* If we are using the result as a function name, we need to append |
the appropriate '::' separated constructor or destructor name. |
We do this here because this is the most convenient place, where |
we already have a pointer to the name and the length of the name. */ |
|
if (isfuncname) |
{ |
string_append (&temp, SCOPE_STRING (work)); |
if (work -> destructor & 1) |
string_append (&temp, "~"); |
string_appends (&temp, &last_name); |
} |
|
/* Now either prepend the temp buffer to the result, or append it, |
depending upon the state of the append flag. */ |
|
if (append) |
string_appends (result, &temp); |
else |
{ |
if (!STRING_EMPTY (result)) |
string_append (&temp, SCOPE_STRING (work)); |
string_prepends (result, &temp); |
} |
|
string_delete (&last_name); |
string_delete (&temp); |
return (success); |
} |
|
/* |
|
LOCAL FUNCTION |
|
get_count -- convert an ascii count to integer, consuming tokens |
|
SYNOPSIS |
|
static int |
get_count (const char **type, int *count) |
|
DESCRIPTION |
|
Assume that *type points at a count in a mangled name; set |
*count to its value, and set *type to the next character after |
the count. There are some weird rules in effect here. |
|
If *type does not point at a string of digits, return zero. |
|
If *type points at a string of digits followed by an |
underscore, set *count to their value as an integer, advance |
*type to point *after the underscore, and return 1. |
|
If *type points at a string of digits not followed by an |
underscore, consume only the first digit. Set *count to its |
value as an integer, leave *type pointing after that digit, |
and return 1. |
|
The excuse for this odd behavior: in the ARM and HP demangling |
styles, a type can be followed by a repeat count of the form |
`Nxy', where: |
|
`x' is a single digit specifying how many additional copies |
of the type to append to the argument list, and |
|
`y' is one or more digits, specifying the zero-based index of |
the first repeated argument in the list. Yes, as you're |
unmangling the name you can figure this out yourself, but |
it's there anyway. |
|
So, for example, in `bar__3fooFPiN51', the first argument is a |
pointer to an integer (`Pi'), and then the next five arguments |
are the same (`N5'), and the first repeat is the function's |
second argument (`1'). |
*/ |
|
static int |
get_count (const char **type, int *count) |
{ |
const char *p; |
int n; |
|
if (!ISDIGIT ((unsigned char)**type)) |
return (0); |
else |
{ |
*count = **type - '0'; |
(*type)++; |
if (ISDIGIT ((unsigned char)**type)) |
{ |
p = *type; |
n = *count; |
do |
{ |
n *= 10; |
n += *p - '0'; |
p++; |
} |
while (ISDIGIT ((unsigned char)*p)); |
if (*p == '_') |
{ |
*type = p + 1; |
*count = n; |
} |
} |
} |
return (1); |
} |
|
/* RESULT will be initialised here; it will be freed on failure. The |
value returned is really a type_kind_t. */ |
|
static int |
do_type (struct work_stuff *work, const char **mangled, string *result) |
{ |
int n; |
int done; |
int success; |
string decl; |
const char *remembered_type; |
int type_quals; |
type_kind_t tk = tk_none; |
|
string_init (&decl); |
string_init (result); |
|
done = 0; |
success = 1; |
while (success && !done) |
{ |
int member; |
switch (**mangled) |
{ |
|
/* A pointer type */ |
case 'P': |
case 'p': |
(*mangled)++; |
if (! (work -> options & DMGL_JAVA)) |
string_prepend (&decl, "*"); |
if (tk == tk_none) |
tk = tk_pointer; |
break; |
|
/* A reference type */ |
case 'R': |
(*mangled)++; |
string_prepend (&decl, "&"); |
if (tk == tk_none) |
tk = tk_reference; |
break; |
|
/* An array */ |
case 'A': |
{ |
++(*mangled); |
if (!STRING_EMPTY (&decl) |
&& (decl.b[0] == '*' || decl.b[0] == '&')) |
{ |
string_prepend (&decl, "("); |
string_append (&decl, ")"); |
} |
string_append (&decl, "["); |
if (**mangled != '_') |
success = demangle_template_value_parm (work, mangled, &decl, |
tk_integral); |
if (**mangled == '_') |
++(*mangled); |
string_append (&decl, "]"); |
break; |
} |
|
/* A back reference to a previously seen type */ |
case 'T': |
(*mangled)++; |
if (!get_count (mangled, &n) || n >= work -> ntypes) |
{ |
success = 0; |
} |
else |
{ |
remembered_type = work -> typevec[n]; |
mangled = &remembered_type; |
} |
break; |
|
/* A function */ |
case 'F': |
(*mangled)++; |
if (!STRING_EMPTY (&decl) |
&& (decl.b[0] == '*' || decl.b[0] == '&')) |
{ |
string_prepend (&decl, "("); |
string_append (&decl, ")"); |
} |
/* After picking off the function args, we expect to either find the |
function return type (preceded by an '_') or the end of the |
string. */ |
if (!demangle_nested_args (work, mangled, &decl) |
|| (**mangled != '_' && **mangled != '\0')) |
{ |
success = 0; |
break; |
} |
if (success && (**mangled == '_')) |
(*mangled)++; |
break; |
|
case 'M': |
case 'O': |
{ |
type_quals = TYPE_UNQUALIFIED; |
|
member = **mangled == 'M'; |
(*mangled)++; |
|
string_append (&decl, ")"); |
|
/* We don't need to prepend `::' for a qualified name; |
demangle_qualified will do that for us. */ |
if (**mangled != 'Q') |
string_prepend (&decl, SCOPE_STRING (work)); |
|
if (ISDIGIT ((unsigned char)**mangled)) |
{ |
n = consume_count (mangled); |
if (n == -1 |
|| (int) strlen (*mangled) < n) |
{ |
success = 0; |
break; |
} |
string_prependn (&decl, *mangled, n); |
*mangled += n; |
} |
else if (**mangled == 'X' || **mangled == 'Y') |
{ |
string temp; |
do_type (work, mangled, &temp); |
string_prepends (&decl, &temp); |
string_delete (&temp); |
} |
else if (**mangled == 't') |
{ |
string temp; |
string_init (&temp); |
success = demangle_template (work, mangled, &temp, |
NULL, 1, 1); |
if (success) |
{ |
string_prependn (&decl, temp.b, temp.p - temp.b); |
string_delete (&temp); |
} |
else |
break; |
} |
else if (**mangled == 'Q') |
{ |
success = demangle_qualified (work, mangled, &decl, |
/*isfuncnam=*/0, |
/*append=*/0); |
if (!success) |
break; |
} |
else |
{ |
success = 0; |
break; |
} |
|
string_prepend (&decl, "("); |
if (member) |
{ |
switch (**mangled) |
{ |
case 'C': |
case 'V': |
case 'u': |
type_quals |= code_for_qualifier (**mangled); |
(*mangled)++; |
break; |
|
default: |
break; |
} |
|
if (*(*mangled)++ != 'F') |
{ |
success = 0; |
break; |
} |
} |
if ((member && !demangle_nested_args (work, mangled, &decl)) |
|| **mangled != '_') |
{ |
success = 0; |
break; |
} |
(*mangled)++; |
if (! PRINT_ANSI_QUALIFIERS) |
{ |
break; |
} |
if (type_quals != TYPE_UNQUALIFIED) |
{ |
APPEND_BLANK (&decl); |
string_append (&decl, qualifier_string (type_quals)); |
} |
break; |
} |
case 'G': |
(*mangled)++; |
break; |
|
case 'C': |
case 'V': |
case 'u': |
if (PRINT_ANSI_QUALIFIERS) |
{ |
if (!STRING_EMPTY (&decl)) |
string_prepend (&decl, " "); |
|
string_prepend (&decl, demangle_qualifier (**mangled)); |
} |
(*mangled)++; |
break; |
/* |
} |
*/ |
|
/* fall through */ |
default: |
done = 1; |
break; |
} |
} |
|
if (success) switch (**mangled) |
{ |
/* A qualified name, such as "Outer::Inner". */ |
case 'Q': |
case 'K': |
{ |
success = demangle_qualified (work, mangled, result, 0, 1); |
break; |
} |
|
/* A back reference to a previously seen squangled type */ |
case 'B': |
(*mangled)++; |
if (!get_count (mangled, &n) || n >= work -> numb) |
success = 0; |
else |
string_append (result, work->btypevec[n]); |
break; |
|
case 'X': |
case 'Y': |
/* A template parm. We substitute the corresponding argument. */ |
{ |
int idx; |
|
(*mangled)++; |
idx = consume_count_with_underscores (mangled); |
|
if (idx == -1 |
|| (work->tmpl_argvec && idx >= work->ntmpl_args) |
|| consume_count_with_underscores (mangled) == -1) |
{ |
success = 0; |
break; |
} |
|
if (work->tmpl_argvec) |
string_append (result, work->tmpl_argvec[idx]); |
else |
string_append_template_idx (result, idx); |
|
success = 1; |
} |
break; |
|
default: |
success = demangle_fund_type (work, mangled, result); |
if (tk == tk_none) |
tk = (type_kind_t) success; |
break; |
} |
|
if (success) |
{ |
if (!STRING_EMPTY (&decl)) |
{ |
string_append (result, " "); |
string_appends (result, &decl); |
} |
} |
else |
string_delete (result); |
string_delete (&decl); |
|
if (success) |
/* Assume an integral type, if we're not sure. */ |
return (int) ((tk == tk_none) ? tk_integral : tk); |
else |
return 0; |
} |
|
/* Given a pointer to a type string that represents a fundamental type |
argument (int, long, unsigned int, etc) in TYPE, a pointer to the |
string in which the demangled output is being built in RESULT, and |
the WORK structure, decode the types and add them to the result. |
|
For example: |
|
"Ci" => "const int" |
"Sl" => "signed long" |
"CUs" => "const unsigned short" |
|
The value returned is really a type_kind_t. */ |
|
static int |
demangle_fund_type (struct work_stuff *work, |
const char **mangled, string *result) |
{ |
int done = 0; |
int success = 1; |
char buf[INTBUF_SIZE + 5 /* 'int%u_t' */]; |
unsigned int dec = 0; |
type_kind_t tk = tk_integral; |
|
/* First pick off any type qualifiers. There can be more than one. */ |
|
while (!done) |
{ |
switch (**mangled) |
{ |
case 'C': |
case 'V': |
case 'u': |
if (PRINT_ANSI_QUALIFIERS) |
{ |
if (!STRING_EMPTY (result)) |
string_prepend (result, " "); |
string_prepend (result, demangle_qualifier (**mangled)); |
} |
(*mangled)++; |
break; |
case 'U': |
(*mangled)++; |
APPEND_BLANK (result); |
string_append (result, "unsigned"); |
break; |
case 'S': /* signed char only */ |
(*mangled)++; |
APPEND_BLANK (result); |
string_append (result, "signed"); |
break; |
case 'J': |
(*mangled)++; |
APPEND_BLANK (result); |
string_append (result, "__complex"); |
break; |
default: |
done = 1; |
break; |
} |
} |
|
/* Now pick off the fundamental type. There can be only one. */ |
|
switch (**mangled) |
{ |
case '\0': |
case '_': |
break; |
case 'v': |
(*mangled)++; |
APPEND_BLANK (result); |
string_append (result, "void"); |
break; |
case 'x': |
(*mangled)++; |
APPEND_BLANK (result); |
string_append (result, "long long"); |
break; |
case 'l': |
(*mangled)++; |
APPEND_BLANK (result); |
string_append (result, "long"); |
break; |
case 'i': |
(*mangled)++; |
APPEND_BLANK (result); |
string_append (result, "int"); |
break; |
case 's': |
(*mangled)++; |
APPEND_BLANK (result); |
string_append (result, "short"); |
break; |
case 'b': |
(*mangled)++; |
APPEND_BLANK (result); |
string_append (result, "bool"); |
tk = tk_bool; |
break; |
case 'c': |
(*mangled)++; |
APPEND_BLANK (result); |
string_append (result, "char"); |
tk = tk_char; |
break; |
case 'w': |
(*mangled)++; |
APPEND_BLANK (result); |
string_append (result, "wchar_t"); |
tk = tk_char; |
break; |
case 'r': |
(*mangled)++; |
APPEND_BLANK (result); |
string_append (result, "long double"); |
tk = tk_real; |
break; |
case 'd': |
(*mangled)++; |
APPEND_BLANK (result); |
string_append (result, "double"); |
tk = tk_real; |
break; |
case 'f': |
(*mangled)++; |
APPEND_BLANK (result); |
string_append (result, "float"); |
tk = tk_real; |
break; |
case 'G': |
(*mangled)++; |
if (!ISDIGIT ((unsigned char)**mangled)) |
{ |
success = 0; |
break; |
} |
case 'I': |
(*mangled)++; |
if (**mangled == '_') |
{ |
int i; |
(*mangled)++; |
for (i = 0; |
i < (long) sizeof (buf) - 1 && **mangled && **mangled != '_'; |
(*mangled)++, i++) |
buf[i] = **mangled; |
if (**mangled != '_') |
{ |
success = 0; |
break; |
} |
buf[i] = '\0'; |
(*mangled)++; |
} |
else |
{ |
strncpy (buf, *mangled, 2); |
buf[2] = '\0'; |
*mangled += min (strlen (*mangled), 2); |
} |
sscanf (buf, "%x", &dec); |
sprintf (buf, "int%u_t", dec); |
APPEND_BLANK (result); |
string_append (result, buf); |
break; |
|
/* fall through */ |
/* An explicit type, such as "6mytype" or "7integer" */ |
case '0': |
case '1': |
case '2': |
case '3': |
case '4': |
case '5': |
case '6': |
case '7': |
case '8': |
case '9': |
{ |
int bindex = register_Btype (work); |
string btype; |
string_init (&btype); |
if (demangle_class_name (work, mangled, &btype)) { |
remember_Btype (work, btype.b, LEN_STRING (&btype), bindex); |
APPEND_BLANK (result); |
string_appends (result, &btype); |
} |
else |
success = 0; |
string_delete (&btype); |
break; |
} |
case 't': |
{ |
string btype; |
string_init (&btype); |
success = demangle_template (work, mangled, &btype, 0, 1, 1); |
string_appends (result, &btype); |
string_delete (&btype); |
break; |
} |
default: |
success = 0; |
break; |
} |
|
return success ? ((int) tk) : 0; |
} |
|
|
/* Handle a template's value parameter for HP aCC (extension from ARM) |
**mangled points to 'S' or 'U' */ |
|
static int |
do_hpacc_template_const_value (struct work_stuff *work ATTRIBUTE_UNUSED, |
const char **mangled, string *result) |
{ |
int unsigned_const; |
|
if (**mangled != 'U' && **mangled != 'S') |
return 0; |
|
unsigned_const = (**mangled == 'U'); |
|
(*mangled)++; |
|
switch (**mangled) |
{ |
case 'N': |
string_append (result, "-"); |
/* fall through */ |
case 'P': |
(*mangled)++; |
break; |
case 'M': |
/* special case for -2^31 */ |
string_append (result, "-2147483648"); |
(*mangled)++; |
return 1; |
default: |
return 0; |
} |
|
/* We have to be looking at an integer now */ |
if (!(ISDIGIT ((unsigned char)**mangled))) |
return 0; |
|
/* We only deal with integral values for template |
parameters -- so it's OK to look only for digits */ |
while (ISDIGIT ((unsigned char)**mangled)) |
{ |
char_str[0] = **mangled; |
string_append (result, char_str); |
(*mangled)++; |
} |
|
if (unsigned_const) |
string_append (result, "U"); |
|
/* FIXME? Some day we may have 64-bit (or larger :-) ) constants |
with L or LL suffixes. pai/1997-09-03 */ |
|
return 1; /* success */ |
} |
|
/* Handle a template's literal parameter for HP aCC (extension from ARM) |
**mangled is pointing to the 'A' */ |
|
static int |
do_hpacc_template_literal (struct work_stuff *work, const char **mangled, |
string *result) |
{ |
int literal_len = 0; |
char * recurse; |
char * recurse_dem; |
|
if (**mangled != 'A') |
return 0; |
|
(*mangled)++; |
|
literal_len = consume_count (mangled); |
|
if (literal_len <= 0) |
return 0; |
|
/* Literal parameters are names of arrays, functions, etc. and the |
canonical representation uses the address operator */ |
string_append (result, "&"); |
|
/* Now recursively demangle the literal name */ |
recurse = XNEWVEC (char, literal_len + 1); |
memcpy (recurse, *mangled, literal_len); |
recurse[literal_len] = '\000'; |
|
recurse_dem = cplus_demangle (recurse, work->options); |
|
if (recurse_dem) |
{ |
string_append (result, recurse_dem); |
free (recurse_dem); |
} |
else |
{ |
string_appendn (result, *mangled, literal_len); |
} |
(*mangled) += literal_len; |
free (recurse); |
|
return 1; |
} |
|
static int |
snarf_numeric_literal (const char **args, string *arg) |
{ |
if (**args == '-') |
{ |
char_str[0] = '-'; |
string_append (arg, char_str); |
(*args)++; |
} |
else if (**args == '+') |
(*args)++; |
|
if (!ISDIGIT ((unsigned char)**args)) |
return 0; |
|
while (ISDIGIT ((unsigned char)**args)) |
{ |
char_str[0] = **args; |
string_append (arg, char_str); |
(*args)++; |
} |
|
return 1; |
} |
|
/* Demangle the next argument, given by MANGLED into RESULT, which |
*should be an uninitialized* string. It will be initialized here, |
and free'd should anything go wrong. */ |
|
static int |
do_arg (struct work_stuff *work, const char **mangled, string *result) |
{ |
/* Remember where we started so that we can record the type, for |
non-squangling type remembering. */ |
const char *start = *mangled; |
|
string_init (result); |
|
if (work->nrepeats > 0) |
{ |
--work->nrepeats; |
|
if (work->previous_argument == 0) |
return 0; |
|
/* We want to reissue the previous type in this argument list. */ |
string_appends (result, work->previous_argument); |
return 1; |
} |
|
if (**mangled == 'n') |
{ |
/* A squangling-style repeat. */ |
(*mangled)++; |
work->nrepeats = consume_count(mangled); |
|
if (work->nrepeats <= 0) |
/* This was not a repeat count after all. */ |
return 0; |
|
if (work->nrepeats > 9) |
{ |
if (**mangled != '_') |
/* The repeat count should be followed by an '_' in this |
case. */ |
return 0; |
else |
(*mangled)++; |
} |
|
/* Now, the repeat is all set up. */ |
return do_arg (work, mangled, result); |
} |
|
/* Save the result in WORK->previous_argument so that we can find it |
if it's repeated. Note that saving START is not good enough: we |
do not want to add additional types to the back-referenceable |
type vector when processing a repeated type. */ |
if (work->previous_argument) |
string_delete (work->previous_argument); |
else |
work->previous_argument = XNEW (string); |
|
if (!do_type (work, mangled, work->previous_argument)) |
return 0; |
|
string_appends (result, work->previous_argument); |
|
remember_type (work, start, *mangled - start); |
return 1; |
} |
|
static void |
remember_type (struct work_stuff *work, const char *start, int len) |
{ |
char *tem; |
|
if (work->forgetting_types) |
return; |
|
if (work -> ntypes >= work -> typevec_size) |
{ |
if (work -> typevec_size == 0) |
{ |
work -> typevec_size = 3; |
work -> typevec = XNEWVEC (char *, work->typevec_size); |
} |
else |
{ |
work -> typevec_size *= 2; |
work -> typevec |
= XRESIZEVEC (char *, work->typevec, work->typevec_size); |
} |
} |
tem = XNEWVEC (char, len + 1); |
memcpy (tem, start, len); |
tem[len] = '\0'; |
work -> typevec[work -> ntypes++] = tem; |
} |
|
|
/* Remember a K type class qualifier. */ |
static void |
remember_Ktype (struct work_stuff *work, const char *start, int len) |
{ |
char *tem; |
|
if (work -> numk >= work -> ksize) |
{ |
if (work -> ksize == 0) |
{ |
work -> ksize = 5; |
work -> ktypevec = XNEWVEC (char *, work->ksize); |
} |
else |
{ |
work -> ksize *= 2; |
work -> ktypevec |
= XRESIZEVEC (char *, work->ktypevec, work->ksize); |
} |
} |
tem = XNEWVEC (char, len + 1); |
memcpy (tem, start, len); |
tem[len] = '\0'; |
work -> ktypevec[work -> numk++] = tem; |
} |
|
/* Register a B code, and get an index for it. B codes are registered |
as they are seen, rather than as they are completed, so map<temp<char> > |
registers map<temp<char> > as B0, and temp<char> as B1 */ |
|
static int |
register_Btype (struct work_stuff *work) |
{ |
int ret; |
|
if (work -> numb >= work -> bsize) |
{ |
if (work -> bsize == 0) |
{ |
work -> bsize = 5; |
work -> btypevec = XNEWVEC (char *, work->bsize); |
} |
else |
{ |
work -> bsize *= 2; |
work -> btypevec |
= XRESIZEVEC (char *, work->btypevec, work->bsize); |
} |
} |
ret = work -> numb++; |
work -> btypevec[ret] = NULL; |
return(ret); |
} |
|
/* Store a value into a previously registered B code type. */ |
|
static void |
remember_Btype (struct work_stuff *work, const char *start, |
int len, int index) |
{ |
char *tem; |
|
tem = XNEWVEC (char, len + 1); |
memcpy (tem, start, len); |
tem[len] = '\0'; |
work -> btypevec[index] = tem; |
} |
|
/* Lose all the info related to B and K type codes. */ |
static void |
forget_B_and_K_types (struct work_stuff *work) |
{ |
int i; |
|
while (work -> numk > 0) |
{ |
i = --(work -> numk); |
if (work -> ktypevec[i] != NULL) |
{ |
free (work -> ktypevec[i]); |
work -> ktypevec[i] = NULL; |
} |
} |
|
while (work -> numb > 0) |
{ |
i = --(work -> numb); |
if (work -> btypevec[i] != NULL) |
{ |
free (work -> btypevec[i]); |
work -> btypevec[i] = NULL; |
} |
} |
} |
/* Forget the remembered types, but not the type vector itself. */ |
|
static void |
forget_types (struct work_stuff *work) |
{ |
int i; |
|
while (work -> ntypes > 0) |
{ |
i = --(work -> ntypes); |
if (work -> typevec[i] != NULL) |
{ |
free (work -> typevec[i]); |
work -> typevec[i] = NULL; |
} |
} |
} |
|
/* Process the argument list part of the signature, after any class spec |
has been consumed, as well as the first 'F' character (if any). For |
example: |
|
"__als__3fooRT0" => process "RT0" |
"complexfunc5__FPFPc_PFl_i" => process "PFPc_PFl_i" |
|
DECLP must be already initialised, usually non-empty. It won't be freed |
on failure. |
|
Note that g++ differs significantly from ARM and lucid style mangling |
with regards to references to previously seen types. For example, given |
the source fragment: |
|
class foo { |
public: |
foo::foo (int, foo &ia, int, foo &ib, int, foo &ic); |
}; |
|
foo::foo (int, foo &ia, int, foo &ib, int, foo &ic) { ia = ib = ic; } |
void foo (int, foo &ia, int, foo &ib, int, foo &ic) { ia = ib = ic; } |
|
g++ produces the names: |
|
__3fooiRT0iT2iT2 |
foo__FiR3fooiT1iT1 |
|
while lcc (and presumably other ARM style compilers as well) produces: |
|
foo__FiR3fooT1T2T1T2 |
__ct__3fooFiR3fooT1T2T1T2 |
|
Note that g++ bases its type numbers starting at zero and counts all |
previously seen types, while lucid/ARM bases its type numbers starting |
at one and only considers types after it has seen the 'F' character |
indicating the start of the function args. For lucid/ARM style, we |
account for this difference by discarding any previously seen types when |
we see the 'F' character, and subtracting one from the type number |
reference. |
|
*/ |
|
static int |
demangle_args (struct work_stuff *work, const char **mangled, |
string *declp) |
{ |
string arg; |
int need_comma = 0; |
int r; |
int t; |
const char *tem; |
char temptype; |
|
if (PRINT_ARG_TYPES) |
{ |
string_append (declp, "("); |
if (**mangled == '\0') |
{ |
string_append (declp, "void"); |
} |
} |
|
while ((**mangled != '_' && **mangled != '\0' && **mangled != 'e') |
|| work->nrepeats > 0) |
{ |
if ((**mangled == 'N') || (**mangled == 'T')) |
{ |
temptype = *(*mangled)++; |
|
if (temptype == 'N') |
{ |
if (!get_count (mangled, &r)) |
{ |
return (0); |
} |
} |
else |
{ |
r = 1; |
} |
if ((HP_DEMANGLING || ARM_DEMANGLING || EDG_DEMANGLING) && work -> ntypes >= 10) |
{ |
/* If we have 10 or more types we might have more than a 1 digit |
index so we'll have to consume the whole count here. This |
will lose if the next thing is a type name preceded by a |
count but it's impossible to demangle that case properly |
anyway. Eg if we already have 12 types is T12Pc "(..., type1, |
Pc, ...)" or "(..., type12, char *, ...)" */ |
if ((t = consume_count(mangled)) <= 0) |
{ |
return (0); |
} |
} |
else |
{ |
if (!get_count (mangled, &t)) |
{ |
return (0); |
} |
} |
if (LUCID_DEMANGLING || ARM_DEMANGLING || HP_DEMANGLING || EDG_DEMANGLING) |
{ |
t--; |
} |
/* Validate the type index. Protect against illegal indices from |
malformed type strings. */ |
if ((t < 0) || (t >= work -> ntypes)) |
{ |
return (0); |
} |
while (work->nrepeats > 0 || --r >= 0) |
{ |
tem = work -> typevec[t]; |
if (need_comma && PRINT_ARG_TYPES) |
{ |
string_append (declp, ", "); |
} |
if (!do_arg (work, &tem, &arg)) |
{ |
return (0); |
} |
if (PRINT_ARG_TYPES) |
{ |
string_appends (declp, &arg); |
} |
string_delete (&arg); |
need_comma = 1; |
} |
} |
else |
{ |
if (need_comma && PRINT_ARG_TYPES) |
string_append (declp, ", "); |
if (!do_arg (work, mangled, &arg)) |
return (0); |
if (PRINT_ARG_TYPES) |
string_appends (declp, &arg); |
string_delete (&arg); |
need_comma = 1; |
} |
} |
|
if (**mangled == 'e') |
{ |
(*mangled)++; |
if (PRINT_ARG_TYPES) |
{ |
if (need_comma) |
{ |
string_append (declp, ","); |
} |
string_append (declp, "..."); |
} |
} |
|
if (PRINT_ARG_TYPES) |
{ |
string_append (declp, ")"); |
} |
return (1); |
} |
|
/* Like demangle_args, but for demangling the argument lists of function |
and method pointers or references, not top-level declarations. */ |
|
static int |
demangle_nested_args (struct work_stuff *work, const char **mangled, |
string *declp) |
{ |
string* saved_previous_argument; |
int result; |
int saved_nrepeats; |
|
/* The G++ name-mangling algorithm does not remember types on nested |
argument lists, unless -fsquangling is used, and in that case the |
type vector updated by remember_type is not used. So, we turn |
off remembering of types here. */ |
++work->forgetting_types; |
|
/* For the repeat codes used with -fsquangling, we must keep track of |
the last argument. */ |
saved_previous_argument = work->previous_argument; |
saved_nrepeats = work->nrepeats; |
work->previous_argument = 0; |
work->nrepeats = 0; |
|
/* Actually demangle the arguments. */ |
result = demangle_args (work, mangled, declp); |
|
/* Restore the previous_argument field. */ |
if (work->previous_argument) |
{ |
string_delete (work->previous_argument); |
free ((char *) work->previous_argument); |
} |
work->previous_argument = saved_previous_argument; |
--work->forgetting_types; |
work->nrepeats = saved_nrepeats; |
|
return result; |
} |
|
/* Returns 1 if a valid function name was found or 0 otherwise. */ |
|
static int |
demangle_function_name (struct work_stuff *work, const char **mangled, |
string *declp, const char *scan) |
{ |
size_t i; |
string type; |
const char *tem; |
|
string_appendn (declp, (*mangled), scan - (*mangled)); |
string_need (declp, 1); |
*(declp -> p) = '\0'; |
|
/* Consume the function name, including the "__" separating the name |
from the signature. We are guaranteed that SCAN points to the |
separator. */ |
|
(*mangled) = scan + 2; |
/* We may be looking at an instantiation of a template function: |
foo__Xt1t2_Ft3t4, where t1, t2, ... are template arguments and a |
following _F marks the start of the function arguments. Handle |
the template arguments first. */ |
|
if (HP_DEMANGLING && (**mangled == 'X')) |
{ |
demangle_arm_hp_template (work, mangled, 0, declp); |
/* This leaves MANGLED pointing to the 'F' marking func args */ |
} |
|
if (LUCID_DEMANGLING || ARM_DEMANGLING || HP_DEMANGLING || EDG_DEMANGLING) |
{ |
|
/* See if we have an ARM style constructor or destructor operator. |
If so, then just record it, clear the decl, and return. |
We can't build the actual constructor/destructor decl until later, |
when we recover the class name from the signature. */ |
|
if (strcmp (declp -> b, "__ct") == 0) |
{ |
work -> constructor += 1; |
string_clear (declp); |
return 1; |
} |
else if (strcmp (declp -> b, "__dt") == 0) |
{ |
work -> destructor += 1; |
string_clear (declp); |
return 1; |
} |
} |
|
if (declp->p - declp->b >= 3 |
&& declp->b[0] == 'o' |
&& declp->b[1] == 'p' |
&& strchr (cplus_markers, declp->b[2]) != NULL) |
{ |
/* see if it's an assignment expression */ |
if (declp->p - declp->b >= 10 /* op$assign_ */ |
&& memcmp (declp->b + 3, "assign_", 7) == 0) |
{ |
for (i = 0; i < ARRAY_SIZE (optable); i++) |
{ |
int len = declp->p - declp->b - 10; |
if ((int) strlen (optable[i].in) == len |
&& memcmp (optable[i].in, declp->b + 10, len) == 0) |
{ |
string_clear (declp); |
string_append (declp, "operator"); |
string_append (declp, optable[i].out); |
string_append (declp, "="); |
break; |
} |
} |
} |
else |
{ |
for (i = 0; i < ARRAY_SIZE (optable); i++) |
{ |
int len = declp->p - declp->b - 3; |
if ((int) strlen (optable[i].in) == len |
&& memcmp (optable[i].in, declp->b + 3, len) == 0) |
{ |
string_clear (declp); |
string_append (declp, "operator"); |
string_append (declp, optable[i].out); |
break; |
} |
} |
} |
} |
else if (declp->p - declp->b >= 5 && memcmp (declp->b, "type", 4) == 0 |
&& strchr (cplus_markers, declp->b[4]) != NULL) |
{ |
/* type conversion operator */ |
tem = declp->b + 5; |
if (do_type (work, &tem, &type)) |
{ |
string_clear (declp); |
string_append (declp, "operator "); |
string_appends (declp, &type); |
string_delete (&type); |
} |
} |
else if (declp->b[0] == '_' && declp->b[1] == '_' |
&& declp->b[2] == 'o' && declp->b[3] == 'p') |
{ |
/* ANSI. */ |
/* type conversion operator. */ |
tem = declp->b + 4; |
if (do_type (work, &tem, &type)) |
{ |
string_clear (declp); |
string_append (declp, "operator "); |
string_appends (declp, &type); |
string_delete (&type); |
} |
} |
else if (declp->b[0] == '_' && declp->b[1] == '_' |
&& ISLOWER((unsigned char)declp->b[2]) |
&& ISLOWER((unsigned char)declp->b[3])) |
{ |
if (declp->b[4] == '\0') |
{ |
/* Operator. */ |
for (i = 0; i < ARRAY_SIZE (optable); i++) |
{ |
if (strlen (optable[i].in) == 2 |
&& memcmp (optable[i].in, declp->b + 2, 2) == 0) |
{ |
string_clear (declp); |
string_append (declp, "operator"); |
string_append (declp, optable[i].out); |
break; |
} |
} |
} |
else |
{ |
if (declp->b[2] == 'a' && declp->b[5] == '\0') |
{ |
/* Assignment. */ |
for (i = 0; i < ARRAY_SIZE (optable); i++) |
{ |
if (strlen (optable[i].in) == 3 |
&& memcmp (optable[i].in, declp->b + 2, 3) == 0) |
{ |
string_clear (declp); |
string_append (declp, "operator"); |
string_append (declp, optable[i].out); |
break; |
} |
} |
} |
} |
} |
|
/* If a function name was obtained but it's not valid, we were not |
successful. */ |
if (LEN_STRING (declp) == 1 && declp->b[0] == '.') |
return 0; |
else |
return 1; |
} |
|
/* a mini string-handling package */ |
|
static void |
string_need (string *s, int n) |
{ |
int tem; |
|
if (s->b == NULL) |
{ |
if (n < 32) |
{ |
n = 32; |
} |
s->p = s->b = XNEWVEC (char, n); |
s->e = s->b + n; |
} |
else if (s->e - s->p < n) |
{ |
tem = s->p - s->b; |
n += tem; |
n *= 2; |
s->b = XRESIZEVEC (char, s->b, n); |
s->p = s->b + tem; |
s->e = s->b + n; |
} |
} |
|
static void |
string_delete (string *s) |
{ |
if (s->b != NULL) |
{ |
free (s->b); |
s->b = s->e = s->p = NULL; |
} |
} |
|
static void |
string_init (string *s) |
{ |
s->b = s->p = s->e = NULL; |
} |
|
static void |
string_clear (string *s) |
{ |
s->p = s->b; |
} |
|
#if 0 |
|
static int |
string_empty (string *s) |
{ |
return (s->b == s->p); |
} |
|
#endif |
|
static void |
string_append (string *p, const char *s) |
{ |
int n; |
if (s == NULL || *s == '\0') |
return; |
n = strlen (s); |
string_need (p, n); |
memcpy (p->p, s, n); |
p->p += n; |
} |
|
static void |
string_appends (string *p, string *s) |
{ |
int n; |
|
if (s->b != s->p) |
{ |
n = s->p - s->b; |
string_need (p, n); |
memcpy (p->p, s->b, n); |
p->p += n; |
} |
} |
|
static void |
string_appendn (string *p, const char *s, int n) |
{ |
if (n != 0) |
{ |
string_need (p, n); |
memcpy (p->p, s, n); |
p->p += n; |
} |
} |
|
static void |
string_prepend (string *p, const char *s) |
{ |
if (s != NULL && *s != '\0') |
{ |
string_prependn (p, s, strlen (s)); |
} |
} |
|
static void |
string_prepends (string *p, string *s) |
{ |
if (s->b != s->p) |
{ |
string_prependn (p, s->b, s->p - s->b); |
} |
} |
|
static void |
string_prependn (string *p, const char *s, int n) |
{ |
char *q; |
|
if (n != 0) |
{ |
string_need (p, n); |
for (q = p->p - 1; q >= p->b; q--) |
{ |
q[n] = q[0]; |
} |
memcpy (p->b, s, n); |
p->p += n; |
} |
} |
|
static void |
string_append_template_idx (string *s, int idx) |
{ |
char buf[INTBUF_SIZE + 1 /* 'T' */]; |
sprintf(buf, "T%d", idx); |
string_append (s, buf); |
} |