| /* |
| * 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 "config.h" |
| #include "wine/port.h" |
| |
| #include <assert.h> |
| #include <stdio.h> |
| #include "msvcrt.h" |
| |
| #include "wine/debug.h" |
| |
| WINE_DEFAULT_DEBUG_CHANNEL(msvcrt); |
| |
| /* TODO: |
| * - document a bit (grammar + functions) |
| * - back-port this new code into tools/winedump/msmangle.c |
| */ |
| |
| #define UNDNAME_COMPLETE (0x0000) |
| #define UNDNAME_NO_LEADING_UNDERSCORES (0x0001) /* Don't show __ in calling convention */ |
| #define UNDNAME_NO_MS_KEYWORDS (0x0002) /* Don't show calling convention at all */ |
| #define UNDNAME_NO_FUNCTION_RETURNS (0x0004) /* Don't show function/method return value */ |
| #define UNDNAME_NO_ALLOCATION_MODEL (0x0008) |
| #define UNDNAME_NO_ALLOCATION_LANGUAGE (0x0010) |
| #define UNDNAME_NO_MS_THISTYPE (0x0020) |
| #define UNDNAME_NO_CV_THISTYPE (0x0040) |
| #define UNDNAME_NO_THISTYPE (0x0060) |
| #define UNDNAME_NO_ACCESS_SPECIFIERS (0x0080) /* Don't show access specifier (public/protected/private) */ |
| #define UNDNAME_NO_THROW_SIGNATURES (0x0100) |
| #define UNDNAME_NO_MEMBER_TYPE (0x0200) /* Don't show static/virtual specifier */ |
| #define UNDNAME_NO_RETURN_UDT_MODEL (0x0400) |
| #define UNDNAME_32_BIT_DECODE (0x0800) |
| #define UNDNAME_NAME_ONLY (0x1000) /* Only report the variable/method name */ |
| #define UNDNAME_NO_ARGUMENTS (0x2000) /* Don't show method arguments */ |
| #define UNDNAME_NO_SPECIAL_SYMS (0x4000) |
| #define UNDNAME_NO_COMPLEX_TYPE (0x8000) |
| |
| /* 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 |
| * |
| */ |
| |
| #define MAX_ARRAY_ELTS 32 |
| struct array |
| { |
| unsigned start; /* first valid reference in array */ |
| unsigned num; /* total number of used elts */ |
| unsigned max; |
| char* elts[MAX_ARRAY_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 */ |
| }; |
| |
| /* 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, size_t 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 = 0; |
| } |
| |
| /****************************************************************** |
| * str_array_push |
| * Adding a new string to an array |
| */ |
| static void str_array_push(struct parsed_symbol* sym, const char* ptr, size_t len, |
| struct array* a) |
| { |
| assert(ptr); |
| assert(a); |
| assert(a->num < MAX_ARRAY_ELTS); |
| if (len == -1) len = 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 (i < a->start) c = '-'; |
| else if (i >= a->num) c = '}'; |
| TRACE("%p\t%d%c %s\n", a, i, c, a->elts[i]); |
| } |
| } |
| } |
| |
| /****************************************************************** |
| * 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; |
| size_t 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 += strlen(t); break; |
| case 'c': (void)va_arg(args, int); len++; break; |
| default: i--; /* fall thru */ |
| case '%': len++; break; |
| } |
| } |
| else len++; |
| } |
| va_end(args); |
| if (!(tmp = (char*)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 = strlen(t); |
| memcpy(p, t, sz); |
| p += sz; |
| } |
| break; |
| case 'c': |
| *p++ = (char)va_arg(args, int); |
| break; |
| default: i--; /* fall thru */ |
| 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); |
| |
| /****************************************************************** |
| * 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; |
| 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 (!demangle_datatype(sym, &ct, pmt_ref, TRUE)) |
| return NULL; |
| /* 'void' terminates an argument list */ |
| if (!strcmp(ct.left, "void")) |
| { |
| if (!z_term && *sym->current == '@') sym->current++; |
| break; |
| } |
| str_array_push(sym, str_printf(sym, "%s%s", ct.left, ct.right), -1, |
| &arg_collect); |
| 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]); |
| } |
| |
| if (close_char == '>' && args_str && args_str[strlen(args_str) - 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 a static string |
| */ |
| static BOOL get_modifier(char ch, const char** ret) |
| { |
| switch (ch) |
| { |
| 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 const char* get_modified_type(struct parsed_symbol* sym, char modif) |
| { |
| const char* modifier; |
| const char* ret = NULL; |
| const char* str_modif; |
| |
| switch (modif) |
| { |
| case 'A': str_modif = " &"; break; |
| case 'B': str_modif = " & volatile"; break; |
| case 'P': str_modif = " *"; break; |
| case 'Q': str_modif = " * const"; break; |
| case 'R': str_modif = " * volatile"; break; |
| case 'S': str_modif = " * const volatile"; break; |
| case '?': str_modif = ""; break; |
| default: return NULL; |
| } |
| |
| if (get_modifier(*sym->current++, &modifier)) |
| { |
| unsigned mark = sym->stack.num; |
| struct datatype_t sub_ct; |
| |
| /* Recurse to get the referred-to type */ |
| if (!demangle_datatype(sym, &sub_ct, NULL, FALSE)) |
| return NULL; |
| ret = str_printf(sym, "%s%s%s%s%s", |
| sub_ct.left, sub_ct.left && modifier ? " " : NULL, |
| modifier, sub_ct.right, str_modif); |
| sym->stack.num = mark; |
| } |
| return ret; |
| } |
| |
| /****************************************************************** |
| * 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 { |
| if (!((*sym->current >= 'A' && *sym->current <= 'Z') || |
| (*sym->current >= 'a' && *sym->current <= 'z') || |
| (*sym->current >= '0' && *sym->current <= '9') || |
| *sym->current == '_' || *sym->current == '$')) { |
| TRACE("Failed at '%c' in %s\n", *sym->current, ptr); |
| return NULL; |
| } |
| } while (*++sym->current != '@'); |
| sym->current++; |
| str_array_push(sym, ptr, sym->current - 1 - ptr, &sym->names); |
| |
| return str_array_get_ref(&sym->names, sym->names.num - sym->names.start - 1); |
| } |
| |
| /****************************************************************** |
| * get_class |
| * Parses class as a list of parent-classes, terminated by '@' and stores the |
| * result in 'a' array. Each parent-classes, as well as the inner element |
| * (either field/method name or class name), are represented in the mangled |
| * name by a literal name ([a-zA-Z0-9_]+ terminated by '@') or a back reference |
| * ([0-9]) or a name with template arguments ('?$' 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 this class name componets a string will be allocated in the |
| * array. |
| */ |
| static BOOL get_class(struct parsed_symbol* sym) |
| { |
| const 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 '?': |
| if (*++sym->current == '$') |
| { |
| /* In a template argument list the back reference to 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. */ |
| char* args = NULL; |
| unsigned num_mark = sym->names.num; |
| unsigned start_mark = sym->names.start; |
| unsigned stack_mark = sym->stack.num; |
| |
| sym->names.start = sym->names.num; |
| sym->current++; |
| if (!(name = get_literal_string(sym))) |
| return FALSE; |
| args = get_args(sym, NULL, 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; |
| /* Now that we are back to the standard name scope push |
| the class component with all its template arguments |
| to the names array for back reference. */ |
| str_array_push(sym, name, -1, &sym->names); |
| } |
| break; |
| default: |
| name = get_literal_string(sym); |
| break; |
| } |
| if (!name) |
| return FALSE; |
| str_array_push(sym, name, -1, &sym->stack); |
| } |
| 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; |
| size_t len, sz; |
| char* ret; |
| struct array *a = &sym->stack; |
| |
| for (len = 0, i = start; i < a->num; i++) |
| { |
| assert(a->elts[i]); |
| len += 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 = 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 (flags & UNDNAME_NO_LEADING_UNDERSCORES) |
| { |
| if (((ch - 'A') % 2) == 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': break; |
| default: ERR("Unknown calling convention %c\n", ch); return FALSE; |
| } |
| } |
| else |
| { |
| if (((ch - 'A') % 2) == 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': break; |
| default: ERR("Unknown calling convention %c\n", ch); return FALSE; |
| } |
| } |
| } |
| 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_extented_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; |
| int num_args=0; |
| |
| 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 */ |
| /* Class/struct/union */ |
| { |
| 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; |
| } |
| } |
| ct->left = str_printf(sym, "%s%s", type_name, struct_name); |
| } |
| break; |
| case '?': |
| /* not all the time is seems */ |
| if (!(ct->left = get_modified_type(sym, '?'))) goto done; |
| break; |
| case 'A': /* reference */ |
| case 'B': /* volatile reference */ |
| if (!(ct->left = get_modified_type(sym, dt))) goto done; |
| break; |
| case 'Q': /* const pointer */ |
| case 'R': /* volatile pointer */ |
| case 'S': /* const volatile pointer */ |
| if (!(ct->left = get_modified_type(sym, in_args ? dt : 'P'))) goto done; |
| break; |
| case 'P': /* Pointer */ |
| if (isdigit(*sym->current)) |
| { |
| /* FIXME: P6 = Function pointer, others who knows.. */ |
| if (*sym->current++ == '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); |
| } |
| else goto done; |
| } |
| else if (!(ct->left = get_modified_type(sym, 'P'))) 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 */ |
| ct->left = str_array_get_ref(pmt_ref, dt - '0'); |
| if (!ct->left) goto done; |
| add_pmt = FALSE; |
| break; |
| case '$': |
| if (sym->current[0] != '0') goto done; |
| if (sym->current[1] >= '0' && sym->current[1] <= '9') |
| { |
| char* ptr; |
| ptr = und_alloc(sym, 2); |
| ptr[0] = sym->current[1] + 1; |
| ptr[1] = 0; |
| ct->left = ptr; |
| sym->current += 2; |
| } |
| else if (sym->current[1] >= 'A' && sym->current[1] <= 'P') |
| { |
| while (sym->current[1] >= 'A' && sym->current[1] <= 'P') |
| { |
| num_args *= 16; |
| num_args += sym->current[1] - 'A'; |
| sym->current += 1; |
| } |
| if(sym->current[1] == '@') |
| { |
| char *ptr; |
| ptr = und_alloc(sym, 17); |
| sprintf(ptr,"%d",num_args); |
| ct->left = ptr; |
| sym->current += 1; |
| } |
| } |
| else goto done; |
| break; |
| default : |
| ERR("Unknown type %c\n", dt); |
| break; |
| } |
| if (add_pmt && pmt_ref && in_args) |
| str_array_push(sym, str_printf(sym, "%s%s", ct->left, ct->right), |
| -1, pmt_ref); |
| 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; |
| struct datatype_t ct; |
| char* name = NULL; |
| BOOL ret = FALSE; |
| char dt; |
| |
| /* 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 (dt = *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->current++, &modifier)) goto done; |
| sym->stack.num = mark; |
| } |
| break; |
| case '6' : /* compiler generated static */ |
| case '7' : /* compiler generated static */ |
| ct.left = ct.right = NULL; |
| if (!get_modifier(*sym->current++, &modifier)) 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; |
| 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) |
| { |
| 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; |
| |
| /* 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' |
| */ |
| |
| if (!(sym->flags & UNDNAME_NO_ACCESS_SPECIFIERS)) |
| { |
| switch ((*sym->current - 'A') / 8) |
| { |
| 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 >= 'A' && *sym->current <= 'X') |
| { |
| switch ((*sym->current - 'A') % 8) |
| { |
| case 2: case 3: member_type = "static "; break; |
| case 4: case 5: member_type = "virtual "; break; |
| case 6: case 7: member_type = "thunk "; break; |
| } |
| } |
| } |
| |
| if (*sym->current >= 'A' && *sym->current <= 'X') |
| { |
| if (!((*sym->current - 'A') & 2)) |
| { |
| /* Implicit 'this' pointer */ |
| /* If there is an implicit this pointer, const modifier follows */ |
| if (!get_modifier(*++sym->current, &modifier)) goto done; |
| } |
| } |
| else if (*sym->current < 'A' || *sym->current > 'Z') goto done; |
| sym->current++; |
| |
| name = get_class_string(sym, 0); |
| |
| if (!get_calling_convention(*sym->current++, &call_conv, &exported, |
| sym->flags)) |
| goto done; |
| |
| 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; |
| } |
| if (sym->flags & UNDNAME_NO_FUNCTION_RETURNS) |
| 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; |
| } |
| |
| 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%s", |
| access, member_type, ct_ret.left, |
| (ct_ret.left && !ct_ret.right) ? " " : NULL, |
| call_conv, call_conv ? " " : NULL, exported, |
| name, args_str, modifier, |
| modifier ? " " : NULL, ct_ret.right); |
| ret = TRUE; |
| done: |
| return ret; |
| } |
| |
| /******************************************************************* |
| * symbol_demangle |
| * Demangle a C++ linker symbol |
| */ |
| static BOOL symbol_demangle(struct parsed_symbol* sym) |
| { |
| BOOL ret = FALSE; |
| unsigned do_after = 0; |
| static CHAR dashed_null[] = "--null--"; |
| |
| /* 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; |
| str_array_init(&sym->names); |
| str_array_init(&sym->stack); |
| sym->current++; |
| |
| /* Then function name or operator code */ |
| if (*sym->current == '?' && sym->current[1] != '$') |
| { |
| const char* function_name = NULL; |
| |
| /* 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 '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; |
| default: |
| ERR("Unknown operator: _%c\n", *sym->current); |
| return FALSE; |
| } |
| break; |
| default: |
| /* FIXME: Other operators */ |
| ERR("Unknown operator: %c\n", *sym->current); |
| return FALSE; |
| } |
| sym->current++; |
| switch (do_after) |
| { |
| case 1: case 2: |
| sym->stack.num = sym->stack.max = 1; |
| sym->stack.elts[0] = dashed_null; |
| break; |
| case 4: |
| sym->result = (char*)function_name; |
| ret = TRUE; |
| goto done; |
| default: |
| str_array_push(sym, function_name, -1, &sym->stack); |
| break; |
| } |
| sym->stack.start = 1; |
| } |
| |
| /* Either a class name, or '@' if the symbol is not a class member */ |
| if (*sym->current != '@') |
| { |
| /* Class the function is associated with, terminated by '@@' */ |
| if (!get_class(sym)) goto done; |
| } |
| else sym->current++; |
| |
| 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 */ |
| sym->flags |= UNDNAME_NO_FUNCTION_RETURNS; |
| break; |
| case 3: |
| sym->flags &= ~UNDNAME_NO_FUNCTION_RETURNS; |
| break; |
| } |
| |
| /* Function/Data type and access level */ |
| if (*sym->current >= '0' && *sym->current <= '7') |
| ret = handle_data(sym); |
| else if (*sym->current >= 'A' && *sym->current <= 'Z') |
| ret = handle_method(sym, do_after == 3); |
| else ret = FALSE; |
| done: |
| if (ret) assert(sym->result); |
| else WARN("Failed at %s\n", sym->current); |
| |
| return ret; |
| } |
| |
| /********************************************************************* |
| * __unDNameEx (MSVCRT.@) |
| * |
| * Demangle a C++ identifier. |
| * |
| * PARAMS |
| * buffer [O] If not NULL, the place to put the demangled string |
| * mangled [I] Mangled name of the function |
| * buflen [I] Length of buffer |
| * memget [I] Function to allocate memory with |
| * memfree [I] Function to free memory with |
| * unknown [?] Unknown, possibly a call back |
| * flags [I] Flags determining demangled format |
| * |
| * RETURNS |
| * Success: A string pointing to the unmangled name, allocated with memget. |
| * Failure: NULL. |
| */ |
| char* CDECL __unDNameEx(char* buffer, const char* mangled, int buflen, |
| malloc_func_t memget, free_func_t memfree, |
| void* unknown, unsigned short int flags) |
| { |
| struct parsed_symbol sym; |
| const char* result; |
| |
| TRACE("(%p,%s,%d,%p,%p,%p,%x)\n", |
| buffer, mangled, buflen, memget, memfree, unknown, flags); |
| |
| /* 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 = memget; |
| sym.mem_free_ptr = memfree; |
| sym.current = mangled; |
| |
| result = symbol_demangle(&sym) ? sym.result : mangled; |
| if (buffer && buflen) |
| { |
| lstrcpynA( buffer, result, buflen); |
| } |
| else |
| { |
| buffer = memget(strlen(result) + 1); |
| if (buffer) strcpy(buffer, result); |
| } |
| |
| und_free_all(&sym); |
| |
| return buffer; |
| } |
| |
| |
| /********************************************************************* |
| * __unDName (MSVCRT.@) |
| */ |
| char* CDECL __unDName(char* buffer, const char* mangled, int buflen, |
| malloc_func_t memget, free_func_t memfree, |
| unsigned short int flags) |
| { |
| return __unDNameEx(buffer, mangled, buflen, memget, memfree, NULL, flags); |
| } |
