VMProtect/third-party/demangle/undname.c

1845 lines
57 KiB
C

/*
* Demangle VC++ symbols into C function prototypes
*
* Copyright 2000 Jon Griffiths
* 2004 Eric Pouech
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
*/
#include "undname.h"
#ifdef VMP_GNU
#define _strdup strdup
#define TRUE (1)
#define FALSE (0)
#endif
#ifndef UND_TRACE
#define TRACE(...) do {} while(0)
#else
#define TRACE(...) printf(__VA_ARGS__)
#endif
#define WARN TRACE
#define ERR TRACE
typedef void* (*malloc_func_t)(size_t);
typedef void (*free_func_t)(void*);
/* TODO:
* - document a bit (grammar + functions)
* - back-port this new code into tools/winedump/msmangle.c
*/
/* How data types modifiers are stored:
* M (in the following definitions) is defined for
* 'A', 'B', 'C' and 'D' as follows
* {<A>}: ""
* {<B>}: "const "
* {<C>}: "volatile "
* {<D>}: "const volatile "
*
* in arguments:
* P<M>x {<M>}x*
* Q<M>x {<M>}x* const
* A<M>x {<M>}x&
* in data fields:
* same as for arguments and also the following
* ?<M>x {<M>}x
*
*/
struct array
{
unsigned start; /* first valid reference in array */
unsigned num; /* total number of used elts */
unsigned max;
unsigned alloc;
char** elts;
};
/* Structure holding a parsed symbol */
struct parsed_symbol
{
unsigned flags; /* the UNDNAME_ flags used for demangling */
malloc_func_t mem_alloc_ptr; /* internal allocator */
free_func_t mem_free_ptr; /* internal deallocator */
const char* current; /* pointer in input (mangled) string */
char* result; /* demangled string */
struct array names; /* array of names for back reference */
struct array stack; /* stack of parsed strings */
void* alloc_list; /* linked list of allocated blocks */
unsigned avail_in_first; /* number of available bytes in head block */
size_t* name_pos;
};
BOOL symbol_demangle(struct parsed_symbol* sym);
/* Type for parsing mangled types */
struct datatype_t
{
const char* left;
const char* right;
};
/******************************************************************
* und_alloc
*
* Internal allocator. Uses a simple linked list of large blocks
* where we use a poor-man allocator. It's fast, and since all
* allocation is pool, memory management is easy (esp. freeing).
*/
static void* und_alloc(struct parsed_symbol* sym, unsigned int len)
{
void* ptr;
#define BLOCK_SIZE 1024
#define AVAIL_SIZE (1024 - sizeof(void*))
if (len > AVAIL_SIZE)
{
/* allocate a specific block */
ptr = sym->mem_alloc_ptr(sizeof(void*) + len);
if (!ptr) return NULL;
*(void**)ptr = sym->alloc_list;
sym->alloc_list = ptr;
sym->avail_in_first = 0;
ptr = (char*)sym->alloc_list + sizeof(void*);
}
else
{
if (len > sym->avail_in_first)
{
/* add a new block */
ptr = sym->mem_alloc_ptr(BLOCK_SIZE);
if (!ptr) return NULL;
*(void**)ptr = sym->alloc_list;
sym->alloc_list = ptr;
sym->avail_in_first = AVAIL_SIZE;
}
/* grab memory from head block */
ptr = (char*)sym->alloc_list + BLOCK_SIZE - sym->avail_in_first;
sym->avail_in_first -= len;
}
return ptr;
#undef BLOCK_SIZE
#undef AVAIL_SIZE
}
/******************************************************************
* und_free
* Frees all the blocks in the list of large blocks allocated by
* und_alloc.
*/
static void und_free_all(struct parsed_symbol* sym)
{
void* next;
while (sym->alloc_list)
{
next = *(void**)sym->alloc_list;
if(sym->mem_free_ptr) sym->mem_free_ptr(sym->alloc_list);
sym->alloc_list = next;
}
sym->avail_in_first = 0;
}
/******************************************************************
* str_array_init
* Initialises an array of strings
*/
static void str_array_init(struct array* a)
{
a->start = a->num = a->max = a->alloc = 0;
a->elts = NULL;
}
/******************************************************************
* str_array_push
* Adding a new string to an array
*/
static BOOL str_array_push(struct parsed_symbol* sym, const char* ptr, int len,
struct array* a)
{
char** newc;
assert(ptr);
assert(a);
if (ptr == NULL || a == NULL)
return FALSE;
if (!a->alloc)
{
newc = und_alloc(sym, (a->alloc = 32) * sizeof(a->elts[0]));
if (!newc) return FALSE;
a->elts = newc;
}
else if (a->max >= a->alloc)
{
newc = und_alloc(sym, (a->alloc * 2) * sizeof(a->elts[0]));
if (!newc) return FALSE;
memcpy(newc, a->elts, a->alloc * sizeof(a->elts[0]));
a->alloc *= 2;
a->elts = newc;
}
if (len == -1) len = (int)strlen(ptr);
a->elts[a->num] = und_alloc(sym, len + 1);
assert(a->elts[a->num]);
memcpy(a->elts[a->num], ptr, len);
a->elts[a->num][len] = '\0';
if (++a->num >= a->max) a->max = a->num;
{
int i;
char c;
for (i = a->max - 1; i >= 0; i--)
{
c = '>';
if ((unsigned int)i < a->start) c = '-';
else if ((unsigned int)i >= a->num) c = '}';
TRACE("%p\t%d%c %s\n", a, i, c, a->elts[i]);
}
}
return TRUE;
}
/******************************************************************
* str_array_get_ref
* Extracts a reference from an existing array (doing proper type
* checking)
*/
static char* str_array_get_ref(struct array* cref, unsigned idx)
{
assert(cref);
if (cref->start + idx >= cref->max)
{
WARN("Out of bounds: %p %d + %d >= %d\n",
cref, cref->start, idx, cref->max);
return NULL;
}
TRACE("Returning %p[%d] => %s\n",
cref, idx, cref->elts[cref->start + idx]);
return cref->elts[cref->start + idx];
}
/******************************************************************
* str_printf
* Helper for printf type of command (only %s and %c are implemented)
* while dynamically allocating the buffer
*/
static char* str_printf(struct parsed_symbol* sym, const char* format, ...)
{
va_list args;
unsigned int len = 1, i, sz;
char* tmp;
char* p;
char* t;
va_start(args, format);
for (i = 0; format[i]; i++)
{
if (format[i] == '%')
{
switch (format[++i])
{
case 's': t = va_arg(args, char*); if (t) len += (unsigned int)strlen(t); break;
case 'c': (void)va_arg(args, int); len++; break;
default: i--; /* fall through */
case '%': len++; break;
}
}
else len++;
}
va_end(args);
if (!(tmp = und_alloc(sym, len))) return NULL;
va_start(args, format);
for (p = tmp, i = 0; format[i]; i++)
{
if (format[i] == '%')
{
switch (format[++i])
{
case 's':
t = va_arg(args, char*);
if (t)
{
sz = (unsigned int)strlen(t);
memcpy(p, t, sz);
p += sz;
}
break;
case 'c':
*p++ = (char)va_arg(args, int);
break;
default: i--; /* fall through */
case '%': *p++ = '%'; break;
}
}
else *p++ = format[i];
}
va_end(args);
*p = '\0';
return tmp;
}
/* forward declaration */
static BOOL demangle_datatype(struct parsed_symbol* sym, struct datatype_t* ct,
struct array* pmt, BOOL in_args);
static char* get_number(struct parsed_symbol* sym)
{
char* ptr;
BOOL sgn = FALSE;
if (*sym->current == '?')
{
sgn = TRUE;
sym->current++;
}
if (*sym->current >= '0' && *sym->current <= '8')
{
ptr = und_alloc(sym, 3);
if (!ptr) return ptr;
if (sgn) ptr[0] = '-';
ptr[sgn ? 1 : 0] = *sym->current + 1;
ptr[sgn ? 2 : 1] = '\0';
sym->current++;
}
else if (*sym->current == '9')
{
ptr = und_alloc(sym, 4);
if (!ptr) return ptr;
if (sgn) ptr[0] = '-';
ptr[sgn ? 1 : 0] = '1';
ptr[sgn ? 2 : 1] = '0';
ptr[sgn ? 3 : 2] = '\0';
sym->current++;
}
else if (*sym->current >= 'A' && *sym->current <= 'P')
{
int ret = 0;
while (*sym->current >= 'A' && *sym->current <= 'P')
{
ret *= 16;
ret += *sym->current++ - 'A';
}
if (*sym->current != '@') return NULL;
ptr = und_alloc(sym, 17);
if (!ptr) return ptr;
sprintf(ptr, "%s%u", sgn ? "-" : "", ret);
sym->current++;
}
else return NULL;
return ptr;
}
/******************************************************************
* get_args
* Parses a list of function/method arguments, creates a string corresponding
* to the arguments' list.
*/
static char* get_args(struct parsed_symbol* sym, struct array* pmt_ref, BOOL z_term,
char open_char, char close_char)
{
struct datatype_t ct;
struct array arg_collect;
char* args_str = NULL;
char* last;
unsigned int i;
str_array_init(&arg_collect);
/* Now come the function arguments */
while (*sym->current)
{
/* Decode each data type and append it to the argument list */
if (*sym->current == '@')
{
sym->current++;
break;
}
if (close_char == '>' && sym->current[0] == '$' && sym->current[1] == '$') {
char c = sym->current[2];
if (c == 'V') {
sym->current += 3;
continue;
} else if (c == 'Z') {
sym->current += 3;
continue;
}
}
if (!demangle_datatype(sym, &ct, pmt_ref, TRUE))
return NULL;
/* 'void' terminates an argument list in a function */
if (z_term && !strcmp(ct.left, "void")) break;
if (!str_array_push(sym, str_printf(sym, "%s%s", ct.left, ct.right), -1,
&arg_collect))
return NULL;
if (!strcmp(ct.left, "...")) break;
}
/* Functions are always terminated by 'Z'. If we made it this far and
* don't find it, we have incorrectly identified a data type.
*/
if (z_term && *sym->current++ != 'Z') return NULL;
if (arg_collect.num == 0 ||
(arg_collect.num == 1 && !strcmp(arg_collect.elts[0], "void")))
return str_printf(sym, "%cvoid%c", open_char, close_char);
for (i = 1; i < arg_collect.num; i++)
{
args_str = str_printf(sym, "%s,%s", args_str, arg_collect.elts[i]);
}
last = args_str ? args_str : arg_collect.elts[0];
if (close_char == '>' && last[strlen(last) - 1] == '>')
args_str = str_printf(sym, "%c%s%s %c",
open_char, arg_collect.elts[0], args_str, close_char);
else
args_str = str_printf(sym, "%c%s%s%c",
open_char, arg_collect.elts[0], args_str, close_char);
return args_str;
}
/******************************************************************
* get_modifier
* Parses the type modifier. Always returns static strings.
*/
static BOOL get_modifier(struct parsed_symbol *sym, const char **ret, const char **ptr_modif)
{
*ptr_modif = NULL;
if (*sym->current == 'E')
{
sym->current++;
if (!(sym->flags & UNDNAME_NO_MS_KEYWORDS)) {
*ptr_modif = "__ptr64";
if (sym->flags & UNDNAME_NO_LEADING_UNDERSCORES)
*ptr_modif += 2;
}
}
switch (*sym->current++)
{
case 'A': *ret = NULL; break;
case 'B': *ret = "const"; break;
case 'C': *ret = "volatile"; break;
case 'D': *ret = "const volatile"; break;
default: return FALSE;
}
return TRUE;
}
static BOOL get_modified_type(struct datatype_t *ct, struct parsed_symbol* sym,
struct array *pmt_ref, char modif, BOOL in_args)
{
const char* modifier;
const char* str_modif;
const char* ptr_modif = "";
if (*sym->current == 'E')
{
sym->current++;
if (!(sym->flags & UNDNAME_NO_MS_KEYWORDS)) {
ptr_modif = "__ptr64";
if (sym->flags & UNDNAME_NO_LEADING_UNDERSCORES)
ptr_modif += 2;
ptr_modif = str_printf(sym, " %s", ptr_modif);
}
}
if (*sym->current == 'I')
{
sym->current++;
if (!(sym->flags & UNDNAME_NO_MS_KEYWORDS)) {
const char *tmp_modif = "__restrict";
if (sym->flags & UNDNAME_NO_LEADING_UNDERSCORES)
tmp_modif += 2;
ptr_modif = str_printf(sym, "%s %s", ptr_modif, tmp_modif);
}
}
switch (modif)
{
case 'A': str_modif = str_printf(sym, " &%s", ptr_modif); break;
case 'B': str_modif = str_printf(sym, " &%s volatile", ptr_modif); break;
case 'P': str_modif = str_printf(sym, " *%s", ptr_modif); break;
case 'Q': str_modif = str_printf(sym, " *%s const", ptr_modif); break;
case 'R': str_modif = str_printf(sym, " *%s volatile", ptr_modif); break;
case 'S': str_modif = str_printf(sym, " *%s const volatile", ptr_modif); break;
case '?': str_modif = ""; break;
default: return FALSE;
}
if (*sym->current == 'F')
{
sym->current++;
if (!(sym->flags & UNDNAME_NO_MS_KEYWORDS)) {
const char *tmp_modif = "__unaligned";
if (sym->flags & UNDNAME_NO_LEADING_UNDERSCORES)
tmp_modif += 2;
str_modif = str_printf(sym, " %s%s", tmp_modif, str_modif);
}
}
if (str_modif == NULL) return FALSE;
if (get_modifier(sym, &modifier, &ptr_modif))
{
unsigned mark = sym->stack.num;
struct datatype_t sub_ct;
/* multidimensional arrays */
if (*sym->current == 'Y')
{
const char* n1;
int num;
sym->current++;
if (!(n1 = get_number(sym))) return FALSE;
num = atoi(n1);
if (num > 128) num = 128; //should be enough
if (str_modif[0] == ' ' && !modifier)
str_modif++;
if (modifier)
{
str_modif = str_printf(sym, " (%s%s)", modifier, str_modif);
modifier = NULL;
}
else
str_modif = str_printf(sym, " (%s)", str_modif);
while (num--)
str_modif = str_printf(sym, "%s[%s]", str_modif, get_number(sym));
}
/* Recurse to get the referred-to type */
if (!demangle_datatype(sym, &sub_ct, pmt_ref, FALSE))
return FALSE;
if (modifier)
ct->left = str_printf(sym, "%s %s%s", sub_ct.left, modifier, str_modif );
else
{
/* don't insert a space between duplicate '*' */
if (!in_args && str_modif && str_modif[0] && str_modif[1] == '*' && sub_ct.left[strlen(sub_ct.left)-1] == '*')
str_modif++;
ct->left = str_printf(sym, "%s%s", sub_ct.left, str_modif );
}
ct->right = sub_ct.right;
sym->stack.num = mark;
}
return TRUE;
}
/******************************************************************
* get_literal_string
* Gets the literal name from the current position in the mangled
* symbol to the first '@' character. It pushes the parsed name to
* the symbol names stack and returns a pointer to it or NULL in
* case of an error.
*/
static char* get_literal_string(struct parsed_symbol* sym)
{
const char *ptr = sym->current;
do {
char c = *sym->current;
if (!((c >= 'A' && c <= 'Z') || (c >= 'a' && c <= 'z') || (c >= '0' && c <= '9') || c == '_' || c == '$' || c == '<' || c == '>')) {
TRACE("Failed at '%c' in %s\n", *sym->current, ptr);
return NULL;
}
} while (*++sym->current != '@');
sym->current++;
if (!str_array_push(sym, ptr, (int)(sym->current - 1 - ptr), &sym->names))
return NULL;
return str_array_get_ref(&sym->names, sym->names.num - sym->names.start - 1);
}
/******************************************************************
* get_template_name
* Parses a name with a template argument list and returns it as
* a string.
* In a template argument list the back reference to the names
* table is separately created. '0' points to the class component
* name with the template arguments. We use the same stack array
* to hold the names but save/restore the stack state before/after
* parsing the template argument list.
*/
static char* get_template_name(struct parsed_symbol* sym)
{
char *name, *args;
unsigned num_mark = sym->names.num;
unsigned start_mark = sym->names.start;
unsigned stack_mark = sym->stack.num;
struct array array_pmt;
sym->names.start = sym->names.num;
if (!(name = get_literal_string(sym)))
return FALSE;
str_array_init(&array_pmt);
args = get_args(sym, &array_pmt, FALSE, '<', '>');
if (args != NULL)
name = str_printf(sym, "%s%s", name, args);
sym->names.num = num_mark;
sym->names.start = start_mark;
sym->stack.num = stack_mark;
return name;
}
/******************************************************************
* get_class
* Parses class as a list of parent-classes, terminated by '@' and stores the
* result in 'a' array. Each parent-classes, as well as the inner element
* (either field/method name or class name), are represented in the mangled
* name by a literal name ([a-zA-Z0-9_]+ terminated by '@') or a back reference
* ([0-9]) or a name with template arguments ('?$' literal name followed by the
* template argument list). The class name components appear in the reverse
* order in the mangled name, e.g aaa@bbb@ccc@@ will be demangled to
* ccc::bbb::aaa
* For each of these class name components a string will be allocated in the
* array.
*/
static BOOL get_class(struct parsed_symbol* sym)
{
char* name = NULL;
while (*sym->current != '@')
{
switch (*sym->current)
{
case '\0': return FALSE;
case '0': case '1': case '2': case '3':
case '4': case '5': case '6': case '7':
case '8': case '9':
name = str_array_get_ref(&sym->names, *sym->current++ - '0');
break;
case '?':
switch (*++sym->current)
{
case '$':
sym->current++;
if ((name = get_template_name(sym)) &&
!str_array_push(sym, name, -1, &sym->names))
return FALSE;
break;
case '?':
{
struct array stack = sym->stack;
unsigned int start = sym->names.start;
unsigned int num = sym->names.num;
str_array_init( &sym->stack );
if (symbol_demangle( sym )) name = str_printf( sym, "`%s'", sym->result );
sym->names.start = start;
sym->names.num = num;
sym->stack = stack;
}
break;
case 'A':
if (!get_literal_string(sym))
return FALSE;
name = str_printf(sym, "`anonymous namespace'");
sym->names.elts[sym->names.num - 1] = name;
break;
default:
if (!(name = get_number( sym ))) return FALSE;
name = str_printf( sym, "`%s'", name );
break;
}
break;
default:
name = get_literal_string(sym);
break;
}
if (!name || !str_array_push(sym, name, -1, &sym->stack))
return FALSE;
}
sym->current++;
return TRUE;
}
/******************************************************************
* get_class_string
* From an array collected by get_class in sym->stack, constructs the
* corresponding (allocated) string
*/
static char* get_class_string(struct parsed_symbol* sym, int start)
{
int i;
unsigned int len, sz;
char* ret;
struct array *a = &sym->stack;
for (len = 0, i = start; i < (int)a->num; i++)
{
assert(a->elts[i]);
len += (unsigned int)(2 + strlen(a->elts[i]));
}
if (!(ret = und_alloc(sym, len - 1))) return NULL;
for (len = 0, i = a->num - 1; i >= start; i--)
{
sz = (unsigned int)strlen(a->elts[i]);
memcpy(ret + len, a->elts[i], sz);
len += sz;
if (i > start)
{
ret[len++] = ':';
ret[len++] = ':';
}
}
ret[len] = '\0';
return ret;
}
/******************************************************************
* get_class_name
* Wrapper around get_class and get_class_string.
*/
static char* get_class_name(struct parsed_symbol* sym)
{
unsigned mark = sym->stack.num;
char* s = NULL;
if (get_class(sym))
s = get_class_string(sym, mark);
sym->stack.num = mark;
return s;
}
/******************************************************************
* get_calling_convention
* Returns a static string corresponding to the calling convention described
* by char 'ch'. Sets export to TRUE iff the calling convention is exported.
*/
static BOOL get_calling_convention(char ch, const char** call_conv,
const char** exported, unsigned flags)
{
*call_conv = *exported = NULL;
if (!(flags & (UNDNAME_NO_MS_KEYWORDS | UNDNAME_NO_ALLOCATION_LANGUAGE)))
{
if ((ch - 'A') & 1) *exported = "__dll_export ";
switch (ch)
{
case 'A': case 'B': *call_conv = "__cdecl"; break;
case 'C': case 'D': *call_conv = "__pascal"; break;
case 'E': case 'F': *call_conv = "__thiscall"; break;
case 'G': case 'H': *call_conv = "__stdcall"; break;
case 'I': case 'J': *call_conv = "__fastcall"; break;
case 'K': case 'L': break;
case 'M': *call_conv = "__clrcall"; break;
default: ERR("Unknown calling convention %c\n", ch); return FALSE;
}
if (flags & UNDNAME_NO_LEADING_UNDERSCORES) {
if (*exported)
*exported += 2;
if (*call_conv)
*call_conv += 2;
}
}
return TRUE;
}
/*******************************************************************
* get_simple_type
* Return a string containing an allocated string for a simple data type
*/
static const char* get_simple_type(char c)
{
const char* type_string;
switch (c)
{
case 'C': type_string = "signed char"; break;
case 'D': type_string = "char"; break;
case 'E': type_string = "unsigned char"; break;
case 'F': type_string = "short"; break;
case 'G': type_string = "unsigned short"; break;
case 'H': type_string = "int"; break;
case 'I': type_string = "unsigned int"; break;
case 'J': type_string = "long"; break;
case 'K': type_string = "unsigned long"; break;
case 'M': type_string = "float"; break;
case 'N': type_string = "double"; break;
case 'O': type_string = "long double"; break;
case 'X': type_string = "void"; break;
case 'Z': type_string = "..."; break;
default: type_string = NULL; break;
}
return type_string;
}
/*******************************************************************
* get_extended_type
* Return a string containing an allocated string for a simple data type
*/
static const char* get_extended_type(char c)
{
const char* type_string;
switch (c)
{
case 'D': type_string = "__int8"; break;
case 'E': type_string = "unsigned __int8"; break;
case 'F': type_string = "__int16"; break;
case 'G': type_string = "unsigned __int16"; break;
case 'H': type_string = "__int32"; break;
case 'I': type_string = "unsigned __int32"; break;
case 'J': type_string = "__int64"; break;
case 'K': type_string = "unsigned __int64"; break;
case 'L': type_string = "__int128"; break;
case 'M': type_string = "unsigned __int128"; break;
case 'N': type_string = "bool"; break;
case 'W': type_string = "wchar_t"; break;
default: type_string = NULL; break;
}
return type_string;
}
/*******************************************************************
* demangle_datatype
*
* Attempt to demangle a C++ data type, which may be datatype.
* a datatype type is made up of a number of simple types. e.g:
* char** = (pointer to (pointer to (char)))
*/
static BOOL demangle_datatype(struct parsed_symbol* sym, struct datatype_t* ct,
struct array* pmt_ref, BOOL in_args)
{
char dt;
BOOL add_pmt = TRUE;
assert(ct);
ct->left = ct->right = NULL;
switch (dt = *sym->current++)
{
case '_':
/* MS type: __int8,__int16 etc */
ct->left = get_extended_type(*sym->current++);
break;
case 'C': case 'D': case 'E': case 'F': case 'G':
case 'H': case 'I': case 'J': case 'K': case 'M':
case 'N': case 'O': case 'X': case 'Z':
/* Simple data types */
ct->left = get_simple_type(dt);
add_pmt = FALSE;
break;
case 'T': /* union */
case 'U': /* struct */
case 'V': /* class */
case 'Y': /* cointerface */
/* Class/struct/union/cointerface */
{
const char* struct_name = NULL;
const char* type_name = NULL;
if (!(struct_name = get_class_name(sym)))
goto done;
if (!(sym->flags & UNDNAME_NO_COMPLEX_TYPE))
{
switch (dt)
{
case 'T': type_name = "union "; break;
case 'U': type_name = "struct "; break;
case 'V': type_name = "class "; break;
case 'Y': type_name = "cointerface "; break;
}
}
ct->left = str_printf(sym, "%s%s", type_name, struct_name);
}
break;
case '?':
/* not all the time is seems */
if (in_args)
{
const char* ptr;
if (!(ptr = get_number(sym))) goto done;
ct->left = str_printf(sym, "`template-parameter-%s'", ptr);
}
else
{
if (!get_modified_type(ct, sym, pmt_ref, '?', in_args)) goto done;
}
break;
case 'A': /* reference */
case 'B': /* volatile reference */
if (!get_modified_type(ct, sym, pmt_ref, dt, in_args)) goto done;
break;
case 'Q': /* const pointer */
if (isdigit(*sym->current))
{
switch (*sym->current++) {
case '6':
{
char* args = NULL;
const char* call_conv;
const char* exported;
struct datatype_t sub_ct;
unsigned mark = sym->stack.num;
if (!get_calling_convention(*sym->current++,
&call_conv, &exported,
sym->flags & ~UNDNAME_NO_ALLOCATION_LANGUAGE) ||
!demangle_datatype(sym, &sub_ct, pmt_ref, FALSE))
goto done;
args = get_args(sym, pmt_ref, TRUE, '(', ')');
if (!args) goto done;
sym->stack.num = mark;
ct->left = str_printf(sym, "%s%s (%s*const",
sub_ct.left, sub_ct.right, call_conv);
ct->right = str_printf(sym, ")%s", args);
}
break;
default:
goto done;
}
} else if (!get_modified_type(ct, sym, pmt_ref, in_args ? dt : 'P', in_args)) goto done;
break;
case 'R': /* volatile pointer */
case 'S': /* const volatile pointer */
if (!get_modified_type(ct, sym, pmt_ref, in_args ? dt : 'P', in_args)) goto done;
break;
case 'P': /* Pointer */
if (isdigit(*sym->current))
{
/* FIXME:
* P6 = Function pointer
* P8 = Member function pointer
* others who knows.. */
switch (*sym->current++) {
case '6':
{
char* args = NULL;
const char* call_conv;
const char* exported;
struct datatype_t sub_ct;
unsigned mark = sym->stack.num;
if (!get_calling_convention(*sym->current++,
&call_conv, &exported,
sym->flags & ~UNDNAME_NO_ALLOCATION_LANGUAGE) ||
!demangle_datatype(sym, &sub_ct, pmt_ref, FALSE))
goto done;
args = get_args(sym, pmt_ref, TRUE, '(', ')');
if (!args) goto done;
sym->stack.num = mark;
ct->left = str_printf(sym, "%s%s (%s*",
sub_ct.left, sub_ct.right, call_conv);
ct->right = str_printf(sym, ")%s", args);
}
break;
case '8':
{
char* args = NULL;
const char* call_conv;
const char* exported;
struct datatype_t sub_ct;
unsigned mark = sym->stack.num;
const char* class;
const char* modifier;
const char* ptr_modif;
if (!(class = get_class_name(sym)))
goto done;
if (!get_modifier(sym, &modifier, &ptr_modif))
goto done;
if (modifier && ptr_modif) modifier = str_printf(sym, "%s %s", modifier, ptr_modif);
else if (!modifier) modifier = ptr_modif;
if (!get_calling_convention(*sym->current++,
&call_conv, &exported,
sym->flags & ~UNDNAME_NO_ALLOCATION_LANGUAGE))
goto done;
if (!demangle_datatype(sym, &sub_ct, pmt_ref, FALSE))
goto done;
args = get_args(sym, pmt_ref, TRUE, '(', ')');
if (!args) goto done;
sym->stack.num = mark;
ct->left = str_printf(sym, "%s%s (%s%s%s::*",
sub_ct.left, sub_ct.right, call_conv, call_conv ? " " : NULL, class);
ct->right = str_printf(sym, ")%s%s%s", args, modifier ? " " : NULL, modifier);
}
break;
default:
goto done;
}
}
else if (!get_modified_type(ct, sym, pmt_ref, 'P', in_args)) goto done;
break;
case 'W':
if (*sym->current == '4')
{
char* enum_name;
sym->current++;
if (!(enum_name = get_class_name(sym)))
goto done;
if (sym->flags & UNDNAME_NO_COMPLEX_TYPE)
ct->left = enum_name;
else
ct->left = str_printf(sym, "enum %s", enum_name);
}
else goto done;
break;
case '0': case '1': case '2': case '3': case '4':
case '5': case '6': case '7': case '8': case '9':
/* Referring back to previously parsed type */
/* left and right are pushed as two separate strings */
if(pmt_ref == NULL) goto done;
ct->left = str_array_get_ref(pmt_ref, (dt - '0') * 2);
ct->right = str_array_get_ref(pmt_ref, (dt - '0') * 2 + 1);
if (!ct->left) goto done;
add_pmt = FALSE;
break;
case '$':
switch (*sym->current++)
{
case '0':
if (!(ct->left = get_number(sym))) goto done;
break;
case '1':
{
struct array stack = sym->stack;
unsigned int start = sym->names.start;
unsigned int num = sym->names.num;
str_array_init(&sym->stack);
if (symbol_demangle(sym)) ct->left = str_printf(sym, "&%s", sym->result);
sym->names.start = start;
sym->names.num = num;
sym->stack = stack;
}
break;
case 'D':
{
const char* ptr;
if (!(ptr = get_number(sym))) goto done;
ct->left = str_printf(sym, "`template-parameter%s'", ptr);
}
break;
case 'F':
{
const char* p1;
const char* p2;
if (!(p1 = get_number(sym))) goto done;
if (!(p2 = get_number(sym))) goto done;
ct->left = str_printf(sym, "{%s,%s}", p1, p2);
}
break;
case 'G':
{
const char* p1;
const char* p2;
const char* p3;
if (!(p1 = get_number(sym))) goto done;
if (!(p2 = get_number(sym))) goto done;
if (!(p3 = get_number(sym))) goto done;
ct->left = str_printf(sym, "{%s,%s,%s}", p1, p2, p3);
}
break;
case 'Q':
{
const char* ptr;
if (!(ptr = get_number(sym))) goto done;
ct->left = str_printf(sym, "`non-type-template-parameter%s'", ptr);
}
break;
case '$':
switch (*sym->current) {
case 'A':
{
sym->current++;
char c = (*sym->current);
if (c == '6') {
char* args = NULL;
const char* call_conv;
const char* exported;
struct datatype_t sub_ct;
unsigned mark = sym->stack.num;
sym->current++;
if (!get_calling_convention(*sym->current++,
&call_conv, &exported,
sym->flags & ~UNDNAME_NO_ALLOCATION_LANGUAGE) ||
!demangle_datatype(sym, &sub_ct, pmt_ref, FALSE))
goto done;
args = get_args(sym, pmt_ref, TRUE, '(', ')');
if (!args) goto done;
sym->stack.num = mark;
ct->left = str_printf(sym, "%s%s%s%s%s%s%s",
sub_ct.left, (sub_ct.left && !sub_ct.right) ? " " : NULL,
call_conv, call_conv ? " " : NULL, exported,
args, sub_ct.right);
} else
goto done;
}
break;
case 'B':
{
const char *ptr = NULL;
sym->current++;
if (*sym->current == 'Y')
{
const char* n1;
int num;
sym->current++;
if (!(n1 = get_number(sym))) goto done;
num = atoi(n1);
while (num--)
ptr = str_printf(sym, "%s[%s]", ptr, get_number(sym));
}
if (!demangle_datatype(sym, ct, pmt_ref, in_args)) goto done;
ct->left = str_printf(sym, "%s %s", ct->left, ptr);
}
break;
case 'C':
{
const char *ptr, *ptr_modif;
sym->current++;
if (!get_modifier(sym, &ptr, &ptr_modif)) goto done;
if (!demangle_datatype(sym, ct, pmt_ref, in_args)) goto done;
ct->left = str_printf(sym, "%s %s", ct->left, ptr);
}
break;
case 'Q':
{
sym->current++;
if (!get_modified_type(ct, sym, pmt_ref, '?', in_args)) goto done;
ct->left = str_printf(sym, "%s &&", ct->left);
}
break;
case 'T':
{
sym->current++;
ct->left = "std::nullptr_t";
}
break;
default:
ERR("Unknown type %c\n", *sym->current);
goto done;
}
break;
}
break;
default :
ERR("Unknown type %c\n", dt);
break;
}
if (add_pmt && pmt_ref && in_args)
{
/* left and right are pushed as two separate strings */
if (!str_array_push(sym, ct->left ? ct->left : "", -1, pmt_ref) ||
!str_array_push(sym, ct->right ? ct->right : "", -1, pmt_ref))
return FALSE;
}
done:
return ct->left != NULL;
}
/******************************************************************
* handle_data
* Does the final parsing and handling for a variable or a field in
* a class.
*/
static BOOL handle_data(struct parsed_symbol* sym)
{
const char* access = NULL;
const char* member_type = NULL;
const char* modifier = NULL;
const char* ptr_modif;
struct datatype_t ct;
char* name = NULL;
BOOL ret = FALSE;
/* 0 private static
* 1 protected static
* 2 public static
* 3 private non-static
* 4 protected non-static
* 5 public non-static
* 6 ?? static
* 7 ?? static
*/
if (!(sym->flags & UNDNAME_NO_ACCESS_SPECIFIERS))
{
/* we only print the access for static members */
switch (*sym->current)
{
case '0': access = "private: "; break;
case '1': access = "protected: "; break;
case '2': access = "public: "; break;
}
}
if (!(sym->flags & UNDNAME_NO_MEMBER_TYPE))
{
if (*sym->current >= '0' && *sym->current <= '2')
member_type = "static ";
}
name = get_class_string(sym, 0);
switch (*sym->current++)
{
case '0': case '1': case '2':
case '3': case '4': case '5':
{
unsigned mark = sym->stack.num;
struct array pmt;
str_array_init(&pmt);
if (!demangle_datatype(sym, &ct, &pmt, FALSE)) goto done;
if (!get_modifier(sym, &modifier, &ptr_modif)) goto done;
if (modifier && ptr_modif) modifier = str_printf(sym, "%s %s", modifier, ptr_modif);
else if (!modifier) modifier = ptr_modif;
sym->stack.num = mark;
}
break;
case '6' : /* compiler generated static */
case '7' : /* compiler generated static */
ct.left = ct.right = NULL;
if (!get_modifier(sym, &modifier, &ptr_modif)) goto done;
if (*sym->current != '@')
{
char* cls = NULL;
if (!(cls = get_class_name(sym)))
goto done;
ct.right = str_printf(sym, "{for `%s'}", cls);
}
break;
case '8':
case '9':
modifier = ct.left = ct.right = NULL;
break;
default: goto done;
}
if (sym->flags & UNDNAME_NAME_ONLY) ct.left = ct.right = modifier = NULL;
sym->result = str_printf(sym, "%s%s%s%s%s%s%s%s", access,
member_type, ct.left,
modifier && ct.left ? " " : NULL, modifier,
modifier || ct.left ? " " : NULL, name, ct.right);
ret = TRUE;
done:
return ret;
}
/******************************************************************
* handle_method
* Does the final parsing and handling for a function or a method in
* a class.
*/
static BOOL handle_method(struct parsed_symbol* sym, BOOL cast_op, BOOL no_return)
{
char accmem;
const char* access = NULL;
const char* member_type = NULL;
struct datatype_t ct_ret;
const char* call_conv;
const char* modifier = NULL;
const char* exported;
const char* args_str = NULL;
const char* name = NULL;
BOOL ret = FALSE;
unsigned mark;
struct array array_pmt;
unsigned short flags = 0;
/* FIXME: why 2 possible letters for each option?
* 'A' private:
* 'B' private:
* 'C' private: static
* 'D' private: static
* 'E' private: virtual
* 'F' private: virtual
* 'G' private: thunk
* 'H' private: thunk
* 'I' protected:
* 'J' protected:
* 'K' protected: static
* 'L' protected: static
* 'M' protected: virtual
* 'N' protected: virtual
* 'O' protected: thunk
* 'P' protected: thunk
* 'Q' public:
* 'R' public:
* 'S' public: static
* 'T' public: static
* 'U' public: virtual
* 'V' public: virtual
* 'W' public: thunk
* 'X' public: thunk
* 'Y'
* 'Z'
* "$0" private: thunk vtordisp
* "$1" private: thunk vtordisp
* "$2" protected: thunk vtordisp
* "$3" protected: thunk vtordisp
* "$4" public: thunk vtordisp
* "$5" public: thunk vtordisp
* "$B" thunk vcall
* "$R0" private: thunk vtordispex
* "$R1" private: thunk vtordispex
* "$R2" protected: thunk vtordispex
* "$R3" protected: thunk vtordispex
* "$R4" public: thunk vtordispex
* "$R5" public: thunk vtordispex
*/
enum {
FLAG_PRIVATE = 0x1,
FLAG_PROTECTED = 0x2,
FLAG_PUBLIC = 0x4,
FLAG_STATIC = 0x8,
FLAG_VIRTUAL = 0x10,
FLAG_THUNK = 0x20,
FLAG_THIS = 0x40,
FLAG_VTORDISP = 0x80,
FLAG_VTORDISPEX = 0x100,
FLAG_VCALL = 0x200,
FLAG_RETURN = 0x400,
FLAG_ARGS = 0x800,
};
accmem = *sym->current++;
if (accmem == '$') {
accmem = *sym->current++;
flags |= FLAG_THUNK;
if (accmem == 'B') {
flags |= FLAG_VCALL;
} else {
if (accmem == 'R') {
flags |= FLAG_VTORDISPEX;
accmem = *sym->current++;
}
if (accmem >= '0' && accmem <= '5') {
flags |= FLAG_VIRTUAL | FLAG_THIS | FLAG_RETURN | FLAG_ARGS;
if ((flags & FLAG_VTORDISPEX) == 0)
flags |= FLAG_VTORDISP;
switch ((accmem - '0') & 6) {
case 0: flags |= FLAG_PRIVATE; break;
case 2: flags |= FLAG_PROTECTED; break;
case 4: flags |= FLAG_PUBLIC; break;
}
} else goto done;
}
} else if (accmem >= 'A' && accmem <= 'Z') {
flags |= FLAG_RETURN | FLAG_ARGS;
switch ((accmem - 'A') / 8) {
case 0: flags |= FLAG_PRIVATE; break;
case 1: flags |= FLAG_PROTECTED; break;
case 2: flags |= FLAG_PUBLIC; break;
}
if (accmem <= 'X') {
flags |= FLAG_THIS;
switch ((accmem - 'A') & 6) {
case 2: flags |= FLAG_STATIC; flags &= ~FLAG_THIS; break;
case 4: flags |= FLAG_VIRTUAL; break;
case 6: flags |= FLAG_THUNK | FLAG_VIRTUAL; break;
}
}
} else goto done;
if (!(sym->flags & UNDNAME_NO_ACCESS_SPECIFIERS)) {
if (flags & FLAG_PRIVATE)
access = "private: ";
else if (flags & FLAG_PROTECTED)
access = "protected: ";
else if (flags & FLAG_PUBLIC)
access = "public: ";
}
if (!(sym->flags & UNDNAME_NO_MEMBER_TYPE)) {
if (flags & FLAG_STATIC)
member_type = "static ";
else if (flags & FLAG_VIRTUAL)
member_type = "virtual ";
}
name = get_class_string(sym, 0);
if (flags & FLAG_THUNK) {
access = str_printf(sym, "[thunk]:%s", access);
if (flags & FLAG_VTORDISPEX) {
const char *num1;
const char *num2;
const char *num3;
const char *num4;
if (!(num1 = get_number(sym))) goto done;
if (!(num2 = get_number(sym))) goto done;
if (!(num3 = get_number(sym))) goto done;
if (!(num4 = get_number(sym))) goto done;
name = str_printf(sym, "%s`vtordispex{%s,%s,%s,%s}' ", name, num1, num2, num3, num4);
} else if (flags & FLAG_VTORDISP) {
const char *num1;
const char *num2;
if (!(num1 = get_number(sym))) goto done;
if (!(num2 = get_number(sym))) goto done;
name = str_printf(sym, "%s`vtordisp{%s,%s}' ", name, num1, num2);
} else if (flags & FLAG_VCALL) {
const char *num1;
const char *type;
if (!(num1 = get_number(sym))) goto done;
if (*sym->current++ == 'A') {
type = "{flat}";
} else goto done;
name = str_printf(sym, "%s{%s%s}' ", name, num1, type);
} else {
name = str_printf(sym, "%s`adjustor{%s}' ", name, get_number(sym));
}
}
if (flags & FLAG_THIS) {
const char *ptr_modif;
/* Implicit 'this' pointer */
/* If there is an implicit this pointer, const modifier follows */
if (!get_modifier(sym, &modifier, &ptr_modif)) goto done;
if (sym->flags & UNDNAME_NO_THISTYPE) modifier = NULL;
else if (modifier || ptr_modif) modifier = str_printf(sym, "%s %s", modifier, ptr_modif);
}
if (!get_calling_convention(*sym->current++, &call_conv, &exported,
sym->flags))
goto done;
if (flags & FLAG_RETURN) {
str_array_init(&array_pmt);
/* Return type, or @ if 'void' */
if (*sym->current == '@')
{
ct_ret.left = "void";
ct_ret.right = NULL;
sym->current++;
}
else
{
if (!demangle_datatype(sym, &ct_ret, &array_pmt, FALSE))
goto done;
}
} else ct_ret.left = ct_ret.right = NULL;
if (no_return)
ct_ret.left = ct_ret.right = NULL;
if (cast_op)
{
name = str_printf(sym, "%s%s%s", name, ct_ret.left, ct_ret.right);
ct_ret.left = ct_ret.right = NULL;
}
if (flags & FLAG_ARGS) {
mark = sym->stack.num;
if (!(args_str = get_args(sym, &array_pmt, TRUE, '(', ')'))) goto done;
if (sym->flags & UNDNAME_NAME_ONLY) args_str = modifier = NULL;
sym->stack.num = mark;
}
/* Note: '()' after 'Z' means 'throws', but we don't care here
* Yet!!! FIXME
*/
sym->result = str_printf(sym, "%s%s%s%s%s%s%s%s%s%s%s",
access, member_type, ct_ret.left,
(ct_ret.left && !ct_ret.right) ? " " : NULL,
call_conv, call_conv ? " " : NULL, exported,
name, args_str, modifier, ct_ret.right);
if (sym->name_pos) {
size_t len = 0;
len += name ? strlen(name) : 0;
len += args_str ? strlen(args_str) : 0;
len += modifier ? strlen(modifier) : 0;
len += ct_ret.right ? strlen(ct_ret.right) : 0;
*sym->name_pos = strlen(sym->result) - len;
}
ret = TRUE;
done:
return ret;
}
/******************************************************************
* handle_template
* Does the final parsing and handling for a name with templates
*/
static BOOL handle_template(struct parsed_symbol* sym)
{
const char* name;
const char* args;
assert(*sym->current == '$');
sym->current++;
if (!(name = get_literal_string(sym))) return FALSE;
if (!(args = get_args(sym, NULL, FALSE, '<', '>'))) return FALSE;
sym->result = str_printf(sym, "%s%s", name, args);
return TRUE;
}
/*******************************************************************
* symbol_demangle
* Demangle a C++ linker symbol
*/
BOOL symbol_demangle(struct parsed_symbol* sym)
{
BOOL ret = FALSE;
unsigned do_after = 0;
static char dashed_null[] = "--null--";
BOOL no_function_returns = ((sym->flags & UNDNAME_NO_FUNCTION_RETURNS) != 0);
/* FIXME seems wrong as name, as it demangles a simple data type */
if (sym->flags & UNDNAME_NO_ARGUMENTS)
{
struct datatype_t ct;
if (demangle_datatype(sym, &ct, NULL, FALSE))
{
sym->result = str_printf(sym, "%s%s", ct.left, ct.right);
ret = TRUE;
}
goto done;
}
/* MS mangled names always begin with '?' */
if (*sym->current != '?') return FALSE;
sym->current++;
BOOL is_template_args = FALSE;
/* Then function name or operator code */
if (*sym->current == '?' && (sym->current[1] != '$' || sym->current[2] == '?'))
{
const char* function_name = NULL;
if (sym->current[1] == '$')
{
is_template_args = TRUE;
sym->current += 2;
}
/* C++ operator code (one character, or two if the first is '_') */
switch (*++sym->current)
{
case '0': do_after = 1; break;
case '1': do_after = 2; break;
case '2': function_name = "operator new"; break;
case '3': function_name = "operator delete"; break;
case '4': function_name = "operator="; break;
case '5': function_name = "operator>>"; break;
case '6': function_name = "operator<<"; break;
case '7': function_name = "operator!"; break;
case '8': function_name = "operator=="; break;
case '9': function_name = "operator!="; break;
case 'A': function_name = "operator[]"; break;
case 'B': function_name = "operator "; do_after = 3; break;
case 'C': function_name = "operator->"; break;
case 'D': function_name = "operator*"; break;
case 'E': function_name = "operator++"; break;
case 'F': function_name = "operator--"; break;
case 'G': function_name = "operator-"; break;
case 'H': function_name = "operator+"; break;
case 'I': function_name = "operator&"; break;
case 'J': function_name = "operator->*"; break;
case 'K': function_name = "operator/"; break;
case 'L': function_name = "operator%"; break;
case 'M': function_name = "operator<"; break;
case 'N': function_name = "operator<="; break;
case 'O': function_name = "operator>"; break;
case 'P': function_name = "operator>="; break;
case 'Q': function_name = "operator,"; break;
case 'R': function_name = "operator()"; break;
case 'S': function_name = "operator~"; break;
case 'T': function_name = "operator^"; break;
case 'U': function_name = "operator|"; break;
case 'V': function_name = "operator&&"; break;
case 'W': function_name = "operator||"; break;
case 'X': function_name = "operator*="; break;
case 'Y': function_name = "operator+="; break;
case 'Z': function_name = "operator-="; break;
case '_':
switch (*++sym->current)
{
case '0': function_name = "operator/="; break;
case '1': function_name = "operator%="; break;
case '2': function_name = "operator>>="; break;
case '3': function_name = "operator<<="; break;
case '4': function_name = "operator&="; break;
case '5': function_name = "operator|="; break;
case '6': function_name = "operator^="; break;
case '7': function_name = "`vftable'"; break;
case '8': function_name = "`vbtable'"; break;
case '9': function_name = "`vcall'"; break;
case 'A': function_name = "`typeof'"; break;
case 'B': function_name = "`local static guard'"; break;
case 'C': function_name = "`string'"; do_after = 4; break;
case 'D': function_name = "`vbase destructor'"; break;
case 'E': function_name = "`vector deleting destructor'"; break;
case 'F': function_name = "`default constructor closure'"; break;
case 'G': function_name = "`scalar deleting destructor'"; break;
case 'H': function_name = "`vector constructor iterator'"; break;
case 'I': function_name = "`vector destructor iterator'"; break;
case 'J': function_name = "`vector vbase constructor iterator'"; break;
case 'K': function_name = "`virtual displacement map'"; break;
case 'L': function_name = "`eh vector constructor iterator'"; break;
case 'M': function_name = "`eh vector destructor iterator'"; break;
case 'N': function_name = "`eh vector vbase constructor iterator'"; break;
case 'O': function_name = "`copy constructor closure'"; break;
case 'R':
no_function_returns = TRUE;
switch (*++sym->current)
{
case '0':
{
struct datatype_t ct;
struct array pmt;
sym->current++;
str_array_init(&pmt);
demangle_datatype(sym, &ct, &pmt, FALSE);
function_name = str_printf(sym, "%s%s `RTTI Type Descriptor'",
ct.left, ct.right);
sym->current--;
}
break;
case '1':
{
const char* n1, *n2, *n3, *n4;
sym->current++;
n1 = get_number(sym);
n2 = get_number(sym);
n3 = get_number(sym);
n4 = get_number(sym);
sym->current--;
function_name = str_printf(sym, "`RTTI Base Class Descriptor at (%s,%s,%s,%s)'",
n1, n2, n3, n4);
}
break;
case '2': function_name = "`RTTI Base Class Array'"; break;
case '3': function_name = "`RTTI Class Hierarchy Descriptor'"; break;
case '4': function_name = "`RTTI Complete Object Locator'"; break;
default:
ERR("Unknown RTTI operator: _R%c\n", *sym->current);
return FALSE;
}
break;
case 'S': function_name = "`local vftable'"; break;
case 'T': function_name = "`local vftable constructor closure'"; break;
case 'U': function_name = "operator new[]"; break;
case 'V': function_name = "operator delete[]"; break;
case 'X': function_name = "`placement delete closure'"; break;
case 'Y': function_name = "`placement delete[] closure'"; break;
case '_':
switch (*++sym->current) {
case 'A': function_name = "`managed vector constructor iterator'"; break;
case 'B': function_name = "`managed vector destructor iterator'"; break;
case 'C': function_name = "`eh vector copy constructor iterator'"; break;
case 'D': function_name = "`eh vector vbase copy constructor iterator'"; break;
case 'E':
{
char* result = NULL;
if (*++sym->current == '?') {
struct array stack = sym->stack;
unsigned int start = sym->names.start;
unsigned int num = sym->names.num;
str_array_init(&sym->stack);
if (symbol_demangle(sym)) result = sym->result;
sym->names.start = start;
sym->names.num = num;
sym->stack = stack;
if (!result)
return FALSE;
} else {
if (!(result = get_literal_string(sym)))
return FALSE;
sym->current--;
}
function_name = str_printf(sym, "`dynamic initializer for '%s''", result);
}
break;
case 'F':
{
char* result = NULL;
if (*++sym->current == '?') {
struct array stack = sym->stack;
unsigned int start = sym->names.start;
unsigned int num = sym->names.num;
str_array_init(&sym->stack);
if (symbol_demangle(sym)) result = sym->result;
sym->names.start = start;
sym->names.num = num;
sym->stack = stack;
if (!result)
return FALSE;
}
else {
if (!(result = get_literal_string(sym)))
return FALSE;
sym->current--;
}
function_name = str_printf(sym, "`dynamic atexit destructor for '%s''", result);
}
break;
case 'G': function_name = "`vector copy constructor iterator'"; break;
default:
ERR("Unknown operator: __%c\n", *sym->current);
return FALSE;
}
break;
default:
ERR("Unknown operator: _%c\n", *sym->current);
return FALSE;
}
break;
default:
ERR("Unknown operator: %c\n", *sym->current);
return FALSE;
}
sym->current++;
if (is_template_args) {
char *args;
struct array array_pmt;
str_array_init(&array_pmt);
args = get_args(sym, &array_pmt, FALSE, '<', '>');
if (args != NULL) function_name = str_printf(sym, "%s%s", function_name, args);
sym->names.num = 0;
}
switch (do_after)
{
case 1: case 2:
if (!str_array_push(sym, dashed_null, -1, &sym->stack))
return FALSE;
break;
case 4:
sym->result = (char*)function_name;
ret = TRUE;
goto done;
}
if (function_name != NULL) {
if (!str_array_push(sym, function_name, -1, &sym->stack))
return FALSE;
}
}
else if (*sym->current == '$')
{
/* Strange construct, it's a name with a template argument list
and that's all. */
sym->current++;
ret = (sym->result = get_template_name(sym)) != NULL;
goto done;
}
else if (*sym->current == '?' && sym->current[1] == '$')
do_after = 5;
/* Either a class name, or '@' if the symbol is not a class member */
switch (*sym->current)
{
case '@': sym->current++; break;
case '$': break;
default:
/* Class the function is associated with, terminated by '@@' */
if (!get_class(sym)) goto done;
break;
}
switch (do_after)
{
case 0: default: break;
case 1: case 2:
/* it's time to set the member name for ctor & dtor */
if (sym->stack.num <= 1) goto done;
if (do_after == 1)
sym->stack.elts[0] = sym->stack.elts[1];
else
sym->stack.elts[0] = str_printf(sym, "~%s", sym->stack.elts[1]);
/* ctors and dtors don't have return type */
no_function_returns = TRUE;
break;
case 3:
no_function_returns = FALSE;
break;
case 5:
sym->names.start++;
break;
}
/* Function/Data type and access level */
if (*sym->current >= '0' && *sym->current <= '9')
ret = handle_data(sym);
else if ((*sym->current >= 'A' && *sym->current <= 'Z') || (sym->current[0] == '$' && (sym->current[1] == 'R' || sym->current[1] == 'B' || (sym->current[1] >= '0' && sym->current[1] <= '5'))))
ret = handle_method(sym, do_after == 3, no_function_returns);
else if (*sym->current == '$')
ret = handle_template(sym);
else ret = FALSE;
done:
if (ret) assert(sym->result);
else WARN("Failed at %s\n", sym->current);
return ret;
}
char* undname(const char* mangled, unsigned short int flags, size_t* name_pos)
{
struct parsed_symbol sym;
char* result = NULL;
/* The flags details is not documented by MS. However, it looks exactly
* like the UNDNAME_ manifest constants from imagehlp.h and dbghelp.h
* So, we copied those (on top of the file)
*/
memset(&sym, 0, sizeof(struct parsed_symbol));
if (flags & UNDNAME_NAME_ONLY)
flags |= UNDNAME_NO_FUNCTION_RETURNS | UNDNAME_NO_ACCESS_SPECIFIERS |
UNDNAME_NO_MEMBER_TYPE | UNDNAME_NO_ALLOCATION_LANGUAGE |
UNDNAME_NO_COMPLEX_TYPE;
sym.flags = flags;
sym.mem_alloc_ptr = malloc;
sym.mem_free_ptr = free;
sym.current = mangled;
sym.name_pos = name_pos;
str_array_init( &sym.names );
str_array_init( &sym.stack );
if (symbol_demangle(&sym))
result = _strdup(sym.result);
und_free_all(&sym);
return result;
}