/* * 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ #include "config.h" #include "wine/port.h" #include #include #include "msvcrt.h" #include "wine/debug.h" WINE_DEFAULT_DEBUG_CHANNEL(msvcrt); /* TODO: * - document a bit (grammar + fonctions) * - 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 * {}: "" * {}: "const " * {}: "volatile " * {}: "const volatile " * * in arguments: * Px {}x* * Qx {}x* const * Ax {}x& * in data fields: * same as for arguments and also the following * ?x {}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 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; 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("\t%d%c %s\n", 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_class * Parses class as a list of parent-classes, separated by '@', 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 stored as allocated * strings in the array. */ static BOOL get_class(struct parsed_symbol* sym) { const char* ptr; 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': ptr = str_array_get_ref(&sym->stack, *sym->current++ - '0'); if (!ptr) return FALSE; str_array_push(sym, ptr, -1, &sym->stack); break; case '?': if (*++sym->current == '$') { const char* name = ++sym->current; char* full = NULL; char* args = NULL; unsigned num_mark = sym->stack.num; unsigned start_mark = sym->stack.start; while (*sym->current++ != '@'); sym->stack.start = sym->stack.num; str_array_push(sym, name, sym->current - name -1, &sym->stack); args = get_args(sym, NULL, FALSE, '<', '>'); if (args != NULL) { full = str_printf(sym, "%s%s", sym->stack.elts[num_mark], args); } if (!full) return FALSE; sym->stack.elts[num_mark] = full; sym->stack.num = num_mark + 1; sym->stack.start = start_mark; } break; default: ptr = sym->current; while (*sym->current++ != '@'); str_array_push(sym, ptr, sym->current - 1 - ptr, &sym->stack); break; } } sym->current++; return TRUE; } /****************************************************************** * get_class_string * From an array collected by get_class, constructs the corresponding (allocated) * string */ static char* get_class_string(struct parsed_symbol* sym, /*const struct array* a, */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_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(struct parsed_symbol* sym, 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(struct parsed_symbol* sym, 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(struct parsed_symbol* sym, 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, *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(sym, dt); add_pmt = FALSE; break; case 'T': /* union */ case 'U': /* struct */ case 'V': /* class */ /* Class/struct/union */ { unsigned mark = sym->stack.num; const char* struct_name = NULL; const char* type_name = NULL; if (!get_class(sym) || !(struct_name = get_class_string(sym, mark))) goto done; sym->stack.num = mark; 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, *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; unsigned mark = sym->stack.num; sym->current++; if (!get_class(sym) || !(enum_name = get_class_string(sym, mark))) goto done; sym->stack.num = mark; 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; if (!demangle_datatype(sym, &ct, NULL, 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 != '@') { unsigned mark = sym->stack.num; char* cls = NULL; if (!get_class(sym) || !(cls = get_class_string(sym, mark))) goto done; sym->stack.num = mark; 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, *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; } /******************************************************************* * demangle_symbol * Demangle a C++ linker symbol */ static BOOL symbol_demangle(struct parsed_symbol* sym) { BOOL ret = FALSE; unsigned do_after = 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; 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] = "--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* __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) { memcpy(buffer, result, buflen - 1); buffer[buflen - 1] = '\0'; } else { buffer = memget(strlen(result) + 1); if (buffer) strcpy(buffer, result); } und_free_all(&sym); return buffer; } /********************************************************************* * __unDName (MSVCRT.@) */ char* __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); }