text: /*
   * File symbol.c - management of symbols (lexical tree)
   *
   * Copyright (C) 1993, Eric Youngdale.
   *               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
   */
  
  #define NONAMELESSUNION
  #define NONAMELESSSTRUCT
  
  #include "config.h"
  
  #include <stdlib.h>
  #include <stdio.h>
  #include <string.h>
  #include <limits.h>
  #include <sys/types.h>
  #include <assert.h>
  
  #include "wine/debug.h"
  #include "dbghelp_private.h"
  #include "winnls.h"
  
  WINE_DEFAULT_DEBUG_CHANNEL(dbghelp);
  WINE_DECLARE_DEBUG_CHANNEL(dbghelp_symt);
  
  static const WCHAR starW[] = {'*','\0'};
  
  static inline int cmp_addr(ULONG64 a1, ULONG64 a2)
  {
      if (a1 > a2) return 1;
      if (a1 < a2) return -1;
      return 0;
  }
  
  static inline int cmp_sorttab_addr(struct module* module, int idx, ULONG64 addr)
  {
      ULONG64     ref;
      symt_get_address(&module->addr_sorttab[idx]->symt, &ref);
      return cmp_addr(ref, addr);
  }
  
  int symt_cmp_addr(const void* p1, const void* p2)
  {
      const struct symt*  sym1 = *(const struct symt* const *)p1;
      const struct symt*  sym2 = *(const struct symt* const *)p2;
      ULONG64     a1, a2;
  
      symt_get_address(sym1, &a1);
      symt_get_address(sym2, &a2);
      return cmp_addr(a1, a2);
  }
  
  DWORD             symt_ptr2index(struct module* module, const struct symt* sym)
  {
  #ifdef _WIN64
      const struct symt** c;
      int                 len = vector_length(&module->vsymt), i;
  
      /* FIXME: this is inefficient */
      for (i = 0; i < len; i++)
      {
          if (*(struct symt**)vector_at(&module->vsymt, i) == sym)
              return i + 1;
      }
      /* not found */
      c = vector_add(&module->vsymt, &module->pool);
      if (c) *c = sym;
      return len + 1;
  #else
      return (DWORD)sym;
  #endif
  }
  
  struct symt*      symt_index2ptr(struct module* module, DWORD id)
  {
  #ifdef _WIN64
      if (!id-- || id >= vector_length(&module->vsymt)) return NULL;
      return *(struct symt**)vector_at(&module->vsymt, id);
  #else
      return (struct symt*)id;
  #endif
  }
  
  static BOOL symt_grow_sorttab(struct module* module, unsigned sz)
  {
      struct symt_ht**    new;
      unsigned int size;
  
      if (sz <= module->sorttab_size) return TRUE;
      if (module->addr_sorttab)
      {
          size = module->sorttab_size * 2;
          new = HeapReAlloc(GetProcessHeap(), 0, module->addr_sorttab,
                            size * sizeof(struct symt_ht*));
      }
      else
      {
          size = 64;
          new = HeapAlloc(GetProcessHeap(), 0, size * sizeof(struct symt_ht*));
      }
      if (!new) return FALSE;
      module->sorttab_size = size;
      module->addr_sorttab = new;
      return TRUE;
  }
  
  static void symt_add_module_ht(struct module* module, struct symt_ht* ht)
  {
      ULONG64             addr;
  
      hash_table_add(&module->ht_symbols, &ht->hash_elt);
      /* Don't store in sorttab a symbol without address, they are of
       * no use here (e.g. constant values)
       */
      if (symt_get_address(&ht->symt, &addr) &&
          symt_grow_sorttab(module, module->num_symbols + 1))
      {
          module->addr_sorttab[module->num_symbols++] = ht;
          module->sortlist_valid = FALSE;
      }
  }
  
  static WCHAR* file_regex(const char* srcfile)
  {
      WCHAR* mask;
      WCHAR* p;
  
      if (!srcfile || !*srcfile)
      {
          if (!(p = mask = HeapAlloc(GetProcessHeap(), 0, 3 * sizeof(WCHAR)))) return NULL;
          *p++ = '?';
          *p++ = '#';
      }
      else
      {
          DWORD  sz = MultiByteToWideChar(CP_ACP, 0, srcfile, -1, NULL, 0);
          WCHAR* srcfileW;
  
          /* FIXME: we use here the largest conversion for every char... could be optimized */
          p = mask = HeapAlloc(GetProcessHeap(), 0, (5 * strlen(srcfile) + 1 + sz) * sizeof(WCHAR));
          if (!mask) return NULL;
          srcfileW = mask + 5 * strlen(srcfile) + 1;
          MultiByteToWideChar(CP_ACP, 0, srcfile, -1, srcfileW, sz);
  
          while (*srcfileW)
          {
              switch (*srcfileW)
              {
              case '\\':
              case '/':
                  *p++ = '[';
                  *p++ = '\\';
                  *p++ = '\\';
                  *p++ = '/';
                  *p++ = ']';
                  break;
              case '.':
                  *p++ = '?';
                  break;
              default:
                  *p++ = *srcfileW;
                  break;
              }
              srcfileW++;
          }
      }
      *p = 0;
      return mask;
  }
  
  struct symt_compiland* symt_new_compiland(struct module* module, 
                                            unsigned long address, unsigned src_idx)
  {
      struct symt_compiland*    sym;
  
      TRACE_(dbghelp_symt)("Adding compiland symbol %s:%s\n",
                           debugstr_w(module->module.ModuleName), source_get(module, src_idx));
      if ((sym = pool_alloc(&module->pool, sizeof(*sym))))
      {
          sym->symt.tag = SymTagCompiland;
          sym->address  = address;
          sym->source   = src_idx;
          vector_init(&sym->vchildren, sizeof(struct symt*), 32);
      }
      return sym;
  }
  
  struct symt_public* symt_new_public(struct module* module, 
                                      struct symt_compiland* compiland,
                                      const char* name,
                                      unsigned long address, unsigned size)
  {
      struct symt_public* sym;
      struct symt**       p;
  
      TRACE_(dbghelp_symt)("Adding public symbol %s:%s @%lx\n",
                           debugstr_w(module->module.ModuleName), name, address);
      if ((dbghelp_options & SYMOPT_AUTO_PUBLICS) &&
          symt_find_nearest(module, address) != NULL)
          return NULL;
      if ((sym = pool_alloc(&module->pool, sizeof(*sym))))
      {
          sym->symt.tag      = SymTagPublicSymbol;
          sym->hash_elt.name = pool_strdup(&module->pool, name);
          sym->container     = compiland ? &compiland->symt : NULL;
          sym->address       = address;
          sym->size          = size;
          symt_add_module_ht(module, (struct symt_ht*)sym);
          if (compiland)
          {
              p = vector_add(&compiland->vchildren, &module->pool);
              *p = &sym->symt;
          }
      }
      return sym;
  }
  
  struct symt_data* symt_new_global_variable(struct module* module, 
                                             struct symt_compiland* compiland, 
                                             const char* name, unsigned is_static,
                                             struct location loc, unsigned long size,
                                             struct symt* type)
  {
      struct symt_data*   sym;
      struct symt**       p;
      DWORD64             tsz;
  
      TRACE_(dbghelp_symt)("Adding global symbol %s:%s %d@%lx %p\n",
                           debugstr_w(module->module.ModuleName), name, loc.kind, loc.offset, type);
      if ((sym = pool_alloc(&module->pool, sizeof(*sym))))
      {
          sym->symt.tag      = SymTagData;
          sym->hash_elt.name = pool_strdup(&module->pool, name);
          sym->kind          = is_static ? DataIsFileStatic : DataIsGlobal;
          sym->container     = compiland ? &compiland->symt : NULL;
          sym->type          = type;
          sym->u.var         = loc;
          if (type && size && symt_get_info(module, type, TI_GET_LENGTH, &tsz))
          {
              if (tsz != size)
                  FIXME("Size mismatch for %s.%s between type (%s) and src (%lu)\n",
                        debugstr_w(module->module.ModuleName), name,
                        wine_dbgstr_longlong(tsz), size);
          }
          symt_add_module_ht(module, (struct symt_ht*)sym);
          if (compiland)
          {
              p = vector_add(&compiland->vchildren, &module->pool);
              *p = &sym->symt;
          }
      }
      return sym;
  }
  
  struct symt_function* symt_new_function(struct module* module, 
                                          struct symt_compiland* compiland, 
                                          const char* name,
                                          unsigned long addr, unsigned long size,
                                          struct symt* sig_type)
  {
      struct symt_function*       sym;
      struct symt**               p;
  
      TRACE_(dbghelp_symt)("Adding global function %s:%s @%lx-%lx\n",
                           debugstr_w(module->module.ModuleName), name, addr, addr + size - 1);
  
      assert(!sig_type || sig_type->tag == SymTagFunctionType);
      if ((sym = pool_alloc(&module->pool, sizeof(*sym))))
      {
          sym->symt.tag  = SymTagFunction;
          sym->hash_elt.name = pool_strdup(&module->pool, name);
          sym->container = &compiland->symt;
          sym->address   = addr;
          sym->type      = sig_type;
          sym->size      = size;
          vector_init(&sym->vlines,  sizeof(struct line_info), 64);
          vector_init(&sym->vchildren, sizeof(struct symt*), 8);
          symt_add_module_ht(module, (struct symt_ht*)sym);
          if (compiland)
          {
              p = vector_add(&compiland->vchildren, &module->pool);
              *p = &sym->symt;
          }
      }
      return sym;
  }
  
  void symt_add_func_line(struct module* module, struct symt_function* func,
                          unsigned source_idx, int line_num, unsigned long offset)
  {
      struct line_info*   dli;
      BOOL                last_matches = FALSE;
      int                 i;
  
      if (func == NULL || !(dbghelp_options & SYMOPT_LOAD_LINES)) return;
  
      TRACE_(dbghelp_symt)("(%p)%s:%lx %s:%u\n", 
                           func, func->hash_elt.name, offset, 
                           source_get(module, source_idx), line_num);
  
      assert(func->symt.tag == SymTagFunction);
  
      for (i=vector_length(&func->vlines)-1; i>=0; i--)
      {
          dli = vector_at(&func->vlines, i);
          if (dli->is_source_file)
          {
              last_matches = (source_idx == dli->u.source_file);
              break;
          }
      }
  
      if (!last_matches)
      {
          /* we shouldn't have line changes on first line of function */
          dli = vector_add(&func->vlines, &module->pool);
          dli->is_source_file = 1;
          dli->is_first       = dli->is_last = 0;
          dli->line_number    = 0;
          dli->u.source_file  = source_idx;
      }
      dli = vector_add(&func->vlines, &module->pool);
      dli->is_source_file = 0;
      dli->is_first       = dli->is_last = 0;
      dli->line_number    = line_num;
      dli->u.pc_offset    = func->address + offset;
  }
  
  /******************************************************************
   *             symt_add_func_local
   *
   * Adds a new local/parameter to a given function:
   * In any cases, dt tells whether it's a local variable or a parameter
   * If regno it's not 0:
   *      - then variable is stored in a register
   *      - otherwise, value is referenced by register + offset
   * Otherwise, the variable is stored on the stack:
   *      - offset is then the offset from the frame register
   */
  struct symt_data* symt_add_func_local(struct module* module, 
                                        struct symt_function* func, 
                                        enum DataKind dt,
                                        const struct location* loc,
                                        struct symt_block* block, 
                                        struct symt* type, const char* name)
  {
      struct symt_data*   locsym;
      struct symt**       p;
  
      TRACE_(dbghelp_symt)("Adding local symbol (%s:%s): %s %p\n",
                           debugstr_w(module->module.ModuleName), func->hash_elt.name,
                           name, type);
  
      assert(func);
      assert(func->symt.tag == SymTagFunction);
      assert(dt == DataIsParam || dt == DataIsLocal);
  
      locsym = pool_alloc(&module->pool, sizeof(*locsym));
      locsym->symt.tag      = SymTagData;
      locsym->hash_elt.name = pool_strdup(&module->pool, name);
      locsym->hash_elt.next = NULL;
      locsym->kind          = dt;
      locsym->container     = block ? &block->symt : &func->symt;
      locsym->type          = type;
      locsym->u.var         = *loc;
      if (block)
          p = vector_add(&block->vchildren, &module->pool);
      else
          p = vector_add(&func->vchildren, &module->pool);
      *p = &locsym->symt;
      return locsym;
  }
  
  
  struct symt_block* symt_open_func_block(struct module* module, 
                                          struct symt_function* func,
                                          struct symt_block* parent_block, 
                                          unsigned pc, unsigned len)
  {
      struct symt_block*  block;
      struct symt**       p;
  
      assert(func);
      assert(func->symt.tag == SymTagFunction);
  
      assert(!parent_block || parent_block->symt.tag == SymTagBlock);
      block = pool_alloc(&module->pool, sizeof(*block));
      block->symt.tag = SymTagBlock;
      block->address  = func->address + pc;
      block->size     = len;
      block->container = parent_block ? &parent_block->symt : &func->symt;
      vector_init(&block->vchildren, sizeof(struct symt*), 4);
      if (parent_block)
          p = vector_add(&parent_block->vchildren, &module->pool);
      else
          p = vector_add(&func->vchildren, &module->pool);
      *p = &block->symt;
  
      return block;
  }
  
  struct symt_block* symt_close_func_block(struct module* module, 
                                           const struct symt_function* func,
                                           struct symt_block* block, unsigned pc)
  {
      assert(func);
      assert(func->symt.tag == SymTagFunction);
  
      if (pc) block->size = func->address + pc - block->address;
      return (block->container->tag == SymTagBlock) ? 
          GET_ENTRY(block->container, struct symt_block, symt) : NULL;
  }
  
  struct symt_hierarchy_point* symt_add_function_point(struct module* module,
                                                       struct symt_function* func,
                                                       enum SymTagEnum point,
                                                       const struct location* loc,
                                                       const char* name)
  {
      struct symt_hierarchy_point*sym;
      struct symt**               p;
  
      if ((sym = pool_alloc(&module->pool, sizeof(*sym))))
      {
          sym->symt.tag = point;
          sym->parent   = &func->symt;
          sym->loc      = *loc;
          sym->hash_elt.name = name ? pool_strdup(&module->pool, name) : NULL;
          p = vector_add(&func->vchildren, &module->pool);
          *p = &sym->symt;
      }
      return sym;
  }
  
  BOOL symt_normalize_function(struct module* module, const struct symt_function* func)
  {
      unsigned            len;
      struct line_info*   dli;
  
      assert(func);
      /* We aren't adding any more locals or line numbers to this function.
       * Free any spare memory that we might have allocated.
       */
      assert(func->symt.tag == SymTagFunction);
  
  /* EPP     vector_pool_normalize(&func->vlines,    &module->pool); */
  /* EPP     vector_pool_normalize(&func->vchildren, &module->pool); */
  
      len = vector_length(&func->vlines);
      if (len--)
      {
          dli = vector_at(&func->vlines,   0);  dli->is_first = 1;
          dli = vector_at(&func->vlines, len);  dli->is_last  = 1;
      }
      return TRUE;
  }
  
  struct symt_thunk* symt_new_thunk(struct module* module, 
                                    struct symt_compiland* compiland, 
                                    const char* name, THUNK_ORDINAL ord,
                                    unsigned long addr, unsigned long size)
  {
      struct symt_thunk*  sym;
  
      TRACE_(dbghelp_symt)("Adding global thunk %s:%s @%lx-%lx\n",
                           debugstr_w(module->module.ModuleName), name, addr, addr + size - 1);
  
      if ((sym = pool_alloc(&module->pool, sizeof(*sym))))
      {
          sym->symt.tag  = SymTagThunk;
          sym->hash_elt.name = pool_strdup(&module->pool, name);
          sym->container = &compiland->symt;
          sym->address   = addr;
          sym->size      = size;
          sym->ordinal   = ord;
          symt_add_module_ht(module, (struct symt_ht*)sym);
          if (compiland)
          {
              struct symt**       p;
              p = vector_add(&compiland->vchildren, &module->pool);
              *p = &sym->symt;
          }
      }
      return sym;
  }
  
  struct symt_data* symt_new_constant(struct module* module,
                                      struct symt_compiland* compiland,
                                      const char* name, struct symt* type,
                                      const VARIANT* v)
  {
      struct symt_data*  sym;
  
      TRACE_(dbghelp_symt)("Adding constant value %s:%s\n",
                           debugstr_w(module->module.ModuleName), name);
  
      if ((sym = pool_alloc(&module->pool, sizeof(*sym))))
      {
          sym->symt.tag      = SymTagData;
          sym->hash_elt.name = pool_strdup(&module->pool, name);
          sym->kind          = DataIsConstant;
          sym->container     = compiland ? &compiland->symt : NULL;
          sym->type          = type;
          sym->u.value       = *v;
          symt_add_module_ht(module, (struct symt_ht*)sym);
          if (compiland)
          {
              struct symt**       p;
              p = vector_add(&compiland->vchildren, &module->pool);
              *p = &sym->symt;
          }
      }
      return sym;
  }
  
  struct symt_hierarchy_point* symt_new_label(struct module* module,
                                              struct symt_compiland* compiland,
                                              const char* name, unsigned long address)
  {
      struct symt_hierarchy_point*        sym;
  
      TRACE_(dbghelp_symt)("Adding global label value %s:%s\n",
                           debugstr_w(module->module.ModuleName), name);
  
      if ((sym = pool_alloc(&module->pool, sizeof(*sym))))
      {
          sym->symt.tag      = SymTagLabel;
          sym->hash_elt.name = pool_strdup(&module->pool, name);
          sym->loc.kind      = loc_absolute;
          sym->loc.offset    = address;
          sym->parent        = compiland ? &compiland->symt : NULL;
          symt_add_module_ht(module, (struct symt_ht*)sym);
          if (compiland)
          {
              struct symt**       p;
              p = vector_add(&compiland->vchildren, &module->pool);
              *p = &sym->symt;
          }
      }
      return sym;
  }
  
  /* expect sym_info->MaxNameLen to be set before being called */
  static void symt_fill_sym_info(struct module_pair* pair,
                                 const struct symt_function* func,
                                 const struct symt* sym, SYMBOL_INFO* sym_info)
  {
      const char* name;
      DWORD64 size;
  
      if (!symt_get_info(pair->effective, sym, TI_GET_TYPE, &sym_info->TypeIndex))
          sym_info->TypeIndex = 0;
      sym_info->info = symt_ptr2index(pair->effective, sym);
      sym_info->Reserved[0] = sym_info->Reserved[1] = 0;
      if (!symt_get_info(pair->effective, sym, TI_GET_LENGTH, &size) &&
          (!sym_info->TypeIndex ||
           !symt_get_info(pair->effective, symt_index2ptr(pair->effective, sym_info->TypeIndex),
                           TI_GET_LENGTH, &size)))
          size = 0;
      sym_info->Size = (DWORD)size;
      sym_info->ModBase = pair->requested->module.BaseOfImage;
      sym_info->Flags = 0;
      sym_info->Value = 0;
  
      switch (sym->tag)
      {
      case SymTagData:
          {
              const struct symt_data*  data = (const struct symt_data*)sym;
              switch (data->kind)
              {
              case DataIsParam:
                  sym_info->Flags |= SYMFLAG_PARAMETER;
                  /* fall through */
              case DataIsLocal:
                  sym_info->Flags |= SYMFLAG_LOCAL;
                  {
                      struct location loc = data->u.var;
  
                      if (loc.kind >= loc_user)
                      {
                          unsigned                i;
                          struct module_format*   modfmt;
  
                          for (i = 0; i < DFI_LAST; i++)
                          {
                              modfmt = pair->effective->format_info[i];
                              if (modfmt && modfmt->loc_compute)
                              {
                                  modfmt->loc_compute(pair->pcs, modfmt, func, &loc);
                                  break;
                              }
                          }
                      }
                      switch (loc.kind)
                      {
                      case loc_error:
                          /* for now we report error cases as a negative register number */
                          /* fall through */
                      case loc_register:
                          sym_info->Flags |= SYMFLAG_REGISTER;
                          sym_info->Register = loc.reg;
                          sym_info->Address = 0;
                          break;
                      case loc_regrel:
                          sym_info->Flags |= SYMFLAG_REGREL;
                          sym_info->Register = loc.reg;
                          if (loc.reg == CV_REG_NONE || (int)loc.reg < 0 /* error */)
                              FIXME("suspicious register value %x\n", loc.reg);
                          sym_info->Address = loc.offset;
                          break;
                      case loc_absolute:
                          sym_info->Flags |= SYMFLAG_VALUEPRESENT;
                          sym_info->Value = loc.offset;
                          break;
                      default:
                          FIXME("Shouldn't happen (kind=%d), debug reader backend is broken\n", loc.kind);
                          assert(0);
                      }
                  }
                  break;
              case DataIsGlobal:
              case DataIsFileStatic:
                  switch (data->u.var.kind)
                  {
                  case loc_tlsrel:
                      sym_info->Flags |= SYMFLAG_TLSREL;
                      /* fall through */
                  case loc_absolute:
                      symt_get_address(sym, &sym_info->Address);
                      sym_info->Register = 0;
                      break;
                  default:
                      FIXME("Shouldn't happen (kind=%d), debug reader backend is broken\n", data->u.var.kind);
                      assert(0);
                  }
                  break;
              case DataIsConstant:
                  sym_info->Flags |= SYMFLAG_VALUEPRESENT;
                  switch (data->u.value.n1.n2.vt)
                  {
                  case VT_I4:  sym_info->Value = (ULONG)data->u.value.n1.n2.n3.lVal; break;
                  case VT_I2:  sym_info->Value = (ULONG)(long)data->u.value.n1.n2.n3.iVal; break;
                  case VT_I1:  sym_info->Value = (ULONG)(long)data->u.value.n1.n2.n3.cVal; break;
                  case VT_UI4: sym_info->Value = (ULONG)data->u.value.n1.n2.n3.ulVal; break;
                  case VT_UI2: sym_info->Value = (ULONG)data->u.value.n1.n2.n3.uiVal; break;
                  case VT_UI1: sym_info->Value = (ULONG)data->u.value.n1.n2.n3.bVal; break;
                  case VT_I1 | VT_BYREF: sym_info->Value = (ULONG64)(DWORD_PTR)data->u.value.n1.n2.n3.byref; break;
                  case VT_EMPTY: sym_info->Value = 0; break;
                  default:
                      FIXME("Unsupported variant type (%u)\n", data->u.value.n1.n2.vt);
                      sym_info->Value = 0;
                      break;
                  }
                  break;
              default:
                  FIXME("Unhandled kind (%u) in sym data\n", data->kind);
              }
          }
          break;
      case SymTagPublicSymbol:
          sym_info->Flags |= SYMFLAG_EXPORT;
          symt_get_address(sym, &sym_info->Address);
          break;
      case SymTagFunction:
          sym_info->Flags |= SYMFLAG_FUNCTION;
          symt_get_address(sym, &sym_info->Address);
          break;
      case SymTagThunk:
          sym_info->Flags |= SYMFLAG_THUNK;
          symt_get_address(sym, &sym_info->Address);
          break;
      default:
          symt_get_address(sym, &sym_info->Address);
          sym_info->Register = 0;
          break;
      }
      sym_info->Scope = 0; /* FIXME */
      sym_info->Tag = sym->tag;
      name = symt_get_name(sym);
      if (sym_info->MaxNameLen)
      {
          if (sym->tag != SymTagPublicSymbol || !(dbghelp_options & SYMOPT_UNDNAME) ||
              (sym_info->NameLen = UnDecorateSymbolName(name, sym_info->Name,
                                                        sym_info->MaxNameLen, UNDNAME_NAME_ONLY) == 0))
          {
              sym_info->NameLen = min(strlen(name), sym_info->MaxNameLen - 1);
              memcpy(sym_info->Name, name, sym_info->NameLen);
              sym_info->Name[sym_info->NameLen] = '\0';
          }
      }
      TRACE_(dbghelp_symt)("%p => %s %u %s\n",
                           sym, sym_info->Name, sym_info->Size,
                           wine_dbgstr_longlong(sym_info->Address));
  }
  
  struct sym_enum
  {
      PSYM_ENUMERATESYMBOLS_CALLBACK      cb;
      PVOID                               user;
      SYMBOL_INFO*                        sym_info;
      DWORD                               index;
      DWORD                               tag;
      DWORD64                             addr;
      char                                buffer[sizeof(SYMBOL_INFO) + MAX_SYM_NAME];
  };
  
  static BOOL send_symbol(const struct sym_enum* se, struct module_pair* pair,
                          const struct symt_function* func, const struct symt* sym)
  {
      symt_fill_sym_info(pair, func, sym, se->sym_info);
      if (se->index && se->sym_info->info != se->index) return FALSE;
      if (se->tag && se->sym_info->Tag != se->tag) return FALSE;
      if (se->addr && !(se->addr >= se->sym_info->Address && se->addr < se->sym_info->Address + se->sym_info->Size)) return FALSE;
      return !se->cb(se->sym_info, se->sym_info->Size, se->user);
  }
  
  static BOOL symt_enum_module(struct module_pair* pair, const WCHAR* match,
                               const struct sym_enum* se)
  {
      void*                       ptr;
      struct symt_ht*             sym = NULL;
      struct hash_table_iter      hti;
      WCHAR*                      nameW;
      BOOL                        ret;
  
      hash_table_iter_init(&pair->effective->ht_symbols, &hti, NULL);
      while ((ptr = hash_table_iter_up(&hti)))
      {
          sym = GET_ENTRY(ptr, struct symt_ht, hash_elt);
          nameW = symt_get_nameW(&sym->symt);
          ret = SymMatchStringW(nameW, match, FALSE);
          HeapFree(GetProcessHeap(), 0, nameW);
          if (ret)
          {
              se->sym_info->SizeOfStruct = sizeof(SYMBOL_INFO);
              se->sym_info->MaxNameLen = sizeof(se->buffer) - sizeof(SYMBOL_INFO);
              if (send_symbol(se, pair, NULL, &sym->symt)) return TRUE;
          }
      }
      return FALSE;
  }
  
  static inline unsigned where_to_insert(struct module* module, unsigned high, const struct symt_ht* elt)
  {
      unsigned    low = 0, mid = high / 2;
      ULONG64     addr;
  
      if (!high) return 0;
      symt_get_address(&elt->symt, &addr);
      do
      {
          switch (cmp_sorttab_addr(module, mid, addr))
          {
          case 0: return mid;
          case -1: low = mid + 1; break;
          case 1: high = mid; break;
          }
          mid = low + (high - low) / 2;
      } while (low < high);
      return mid;
  }
  
  /***********************************************************************
   *              resort_symbols
   *
   * Rebuild sorted list of symbols for a module.
   */
  static BOOL resort_symbols(struct module* module)
  {
      int delta;
  
      if (!(module->module.NumSyms = module->num_symbols))
          return FALSE;
  
      /* we know that set from 0 up to num_sorttab is already sorted
       * so sort the remaining (new) symbols, and merge the two sets
       * (unless the first set is empty)
       */
      delta = module->num_symbols - module->num_sorttab;
      qsort(&module->addr_sorttab[module->num_sorttab], delta, sizeof(struct symt_ht*), symt_cmp_addr);
      if (module->num_sorttab)
      {
          int     i, ins_idx = module->num_sorttab, prev_ins_idx;
          static struct symt_ht** tmp;
          static unsigned num_tmp;
  
          if (num_tmp < delta)
          {
              static struct symt_ht** new;
              if (tmp)
                  new = HeapReAlloc(GetProcessHeap(), 0, tmp, delta * sizeof(struct symt_ht*));
              else
                  new = HeapAlloc(GetProcessHeap(), 0, delta * sizeof(struct symt_ht*));
              if (!new)
              {
                  module->num_sorttab = 0;
                  return resort_symbols(module);
              }
              tmp = new;
              num_tmp = delta;
          }
          memcpy(tmp, &module->addr_sorttab[module->num_sorttab], delta * sizeof(struct symt_ht*));
          qsort(tmp, delta, sizeof(struct symt_ht*), symt_cmp_addr);
  
          for (i = delta - 1; i >= 0; i--)
          {
              prev_ins_idx = ins_idx;
              ins_idx = where_to_insert(module, ins_idx, tmp[i]);
              memmove(&module->addr_sorttab[ins_idx + i + 1],
                      &module->addr_sorttab[ins_idx],
                      (prev_ins_idx - ins_idx) * sizeof(struct symt_ht*));
              module->addr_sorttab[ins_idx + i] = tmp[i];
          }
      }
      module->num_sorttab = module->num_symbols;
      return module->sortlist_valid = TRUE;
  }
  
  static void symt_get_length(struct module* module, const struct symt* symt, ULONG64* size)
  {
      DWORD       type_index;
  
      if (symt_get_info(module,  symt, TI_GET_LENGTH, size) && *size)
          return;
  
      if (symt_get_info(module, symt, TI_GET_TYPE, &type_index) &&
          symt_get_info(module, symt_index2ptr(module, type_index), TI_GET_LENGTH, size)) return;
      *size = 0x1000; /* arbitrary value */
  }
  
  /* assume addr is in module */
  struct symt_ht* symt_find_nearest(struct module* module, DWORD_PTR addr)
  {
      int         mid, high, low;
      ULONG64     ref_addr, ref_size;
  
      if (!module->sortlist_valid || !module->addr_sorttab)
      {
          if (!resort_symbols(module)) return NULL;
      }
  
      /*
       * Binary search to find closest symbol.
       */
      low = 0;
      high = module->num_sorttab;
  
      symt_get_address(&module->addr_sorttab[0]->symt, &ref_addr);
      if (addr < ref_addr) return NULL;
      if (high)
      {
          symt_get_address(&module->addr_sorttab[high - 1]->symt, &ref_addr);
          symt_get_length(module, &module->addr_sorttab[high - 1]->symt, &ref_size);
          if (addr >= ref_addr + ref_size) return NULL;
      }
      
      while (high > low + 1)
      {
          mid = (high + low) / 2;
          if (cmp_sorttab_addr(module, mid, addr) < 0)
              low = mid;
          else
              high = mid;
      }
      if (low != high && high != module->num_sorttab &&
          cmp_sorttab_addr(module, high, addr) <= 0)
          low = high;
  
      /* If found symbol is a public symbol, check if there are any other entries that
       * might also have the same address, but would get better information
       */
      if (module->addr_sorttab[low]->symt.tag == SymTagPublicSymbol)
      {
          symt_get_address(&module->addr_sorttab[low]->symt, &ref_addr);
          if (low > 0 &&
              module->addr_sorttab[low - 1]->symt.tag != SymTagPublicSymbol &&
              !cmp_sorttab_addr(module, low - 1, ref_addr))
              low--;
          else if (low < module->num_sorttab - 1 &&
                   module->addr_sorttab[low + 1]->symt.tag != SymTagPublicSymbol &&
                   !cmp_sorttab_addr(module, low + 1, ref_addr))
              low++;
      }
      /* finally check that we fit into the found symbol */
      symt_get_address(&module->addr_sorttab[low]->symt, &ref_addr);
      if (addr < ref_addr) return NULL;
      symt_get_length(module, &module->addr_sorttab[low]->symt, &ref_size);
      if (addr >= ref_addr + ref_size) return NULL;
  
      return module->addr_sorttab[low];
  }
  
  static BOOL symt_enum_locals_helper(struct module_pair* pair,
                                      const WCHAR* match, const struct sym_enum* se,
                                      struct symt_function* func, const struct vector* v)
  {
      struct symt*        lsym = NULL;
      DWORD               pc = pair->pcs->ctx_frame.InstructionOffset;
      unsigned int        i;
      WCHAR*              nameW;
      BOOL                ret;
  
      for (i=0; i<vector_length(v); i++)
      {
          lsym = *(struct symt**)vector_at(v, i);
          switch (lsym->tag)
          {
          case SymTagBlock:
              {
                  struct symt_block*  block = (struct symt_block*)lsym;
                  if (pc < block->address || block->address + block->size <= pc)
                      continue;
                  if (!symt_enum_locals_helper(pair, match, se, func, &block->vchildren))
                      return FALSE;
              }
              break;
          case SymTagData:
              nameW = symt_get_nameW(lsym);
              ret = SymMatchStringW(nameW, match,
                                    !(dbghelp_options & SYMOPT_CASE_INSENSITIVE));
              HeapFree(GetProcessHeap(), 0, nameW);
              if (ret)
              {
                  if (send_symbol(se, pair, func, lsym)) return FALSE;
              }
              break;
          case SymTagLabel:
          case SymTagFuncDebugStart:
          case SymTagFuncDebugEnd:
          case SymTagCustom:
              break;
          default:
              FIXME("Unknown type: %u (%x)\n", lsym->tag, lsym->tag);
              assert(0);
          }
      }
      return TRUE;
  }
  
  static BOOL symt_enum_locals(struct process* pcs, const WCHAR* mask,
                               const struct sym_enum* se)
  {
      struct module_pair  pair;
      struct symt_ht*     sym;
      DWORD_PTR           pc = pcs->ctx_frame.InstructionOffset;
  
      se->sym_info->SizeOfStruct = sizeof(*se->sym_info);
      se->sym_info->MaxNameLen = sizeof(se->buffer) - sizeof(SYMBOL_INFO);
  
      pair.pcs = pcs;
      pair.requested = module_find_by_addr(pair.pcs, pc, DMT_UNKNOWN);
      if (!module_get_debug(&pair)) return FALSE;
      if ((sym = symt_find_nearest(pair.effective, pc)) == NULL) return FALSE;
  
      if (sym->symt.tag == SymTagFunction)
      {
          return symt_enum_locals_helper(&pair, mask ? mask : starW, se, (struct symt_function*)sym,
                                         &((struct symt_function*)sym)->vchildren);
      }
      return FALSE;
  }
  
  /******************************************************************
   *		copy_symbolW
   *
   * Helper for transforming an ANSI symbol info into a UNICODE one.
   * Assume that MaxNameLen is the same for both version (A & W).
   */
  void copy_symbolW(SYMBOL_INFOW* siw, const SYMBOL_INFO* si)
  {
      siw->SizeOfStruct = si->SizeOfStruct;
      siw->TypeIndex = si->TypeIndex; 
      siw->Reserved[0] = si->Reserved[0];
      siw->Reserved[1] = si->Reserved[1];
      siw->Index = si->info; /* FIXME: see dbghelp.h */
      siw->Size = si->Size;
      siw->ModBase = si->ModBase;
      siw->Flags = si->Flags;
      siw->Value = si->Value;
      siw->Address = si->Address;
      siw->Register = si->Register;
      siw->Scope = si->Scope;
      siw->Tag = si->Tag;
      siw->NameLen = si->NameLen;
      siw->MaxNameLen = si->MaxNameLen;
      MultiByteToWideChar(CP_ACP, 0, si->Name, -1, siw->Name, siw->MaxNameLen);
  }
  
  /******************************************************************
   *		sym_enum
   *
   * Core routine for most of the enumeration of symbols
   */
  static BOOL sym_enum(HANDLE hProcess, ULONG64 BaseOfDll, PCWSTR Mask,
                       const struct sym_enum* se)
  {
      struct module_pair  pair;
      const WCHAR*        bang;
      WCHAR*              mod;
  
      pair.pcs = process_find_by_handle(hProcess);
      if (!pair.pcs) return FALSE;
      if (BaseOfDll == 0)
      {
          /* do local variables ? */
          if (!Mask || !(bang = strchrW(Mask, '!')))
              return symt_enum_locals(pair.pcs, Mask, se);
  
          if (bang == Mask) return FALSE;
  
          mod = HeapAlloc(GetProcessHeap(), 0, (bang - Mask + 1) * sizeof(WCHAR));
          if (!mod) return FALSE;
          memcpy(mod, Mask, (bang - Mask) * sizeof(WCHAR));
          mod[bang - Mask] = 0;
  
          for (pair.requested = pair.pcs->lmodules; pair.requested; pair.requested = pair.requested->next)
          {
              if (pair.requested->type == DMT_PE && module_get_debug(&pair))
              {
                  if (SymMatchStringW(pair.requested->module.ModuleName, mod, FALSE) &&
                      symt_enum_module(&pair, bang + 1, se))
                      break;
              }
          }
          /* not found in PE modules, retry on the ELF ones
           */
          if (!pair.requested && (dbghelp_options & SYMOPT_WINE_WITH_NATIVE_MODULES))
          {
              for (pair.requested = pair.pcs->lmodules; pair.requested; pair.requested = pair.requested->next)
              {
                  if ((pair.requested->type == DMT_ELF || pair.requested->type == DMT_MACHO) &&
                      !module_get_containee(pair.pcs, pair.requested) &&
                      module_get_debug(&pair))
                  {
                      if (SymMatchStringW(pair.requested->module.ModuleName, mod, FALSE) &&
                          symt_enum_module(&pair, bang + 1, se))
                      break;
                  }
              }
          }
          HeapFree(GetProcessHeap(), 0, mod);
          return TRUE;
      }
      pair.requested = module_find_by_addr(pair.pcs, BaseOfDll, DMT_UNKNOWN);
      if (!module_get_debug(&pair))
          return FALSE;
  
      /* we always ignore module name from Mask when BaseOfDll is defined */
      if (Mask && (bang = strchrW(Mask, '!')))
      {
          if (bang == Mask) return FALSE;
          Mask = bang + 1;
      }
  
      symt_enum_module(&pair, Mask ? Mask : starW, se);
  
      return TRUE;
  }
  
  static inline BOOL doSymEnumSymbols(HANDLE hProcess, ULONG64 BaseOfDll, PCWSTR Mask,
                                      PSYM_ENUMERATESYMBOLS_CALLBACK EnumSymbolsCallback,
                                      PVOID UserContext)
  {
      struct sym_enum     se;
  
      se.cb = EnumSymbolsCallback;
      se.user = UserContext;
      se.index = 0;
      se.tag = 0;
      se.addr = 0;
      se.sym_info = (PSYMBOL_INFO)se.buffer;
  
      return sym_enum(hProcess, BaseOfDll, Mask, &se);
  }
  
  /******************************************************************
   *		SymEnumSymbols (DBGHELP.@)
   *
   * cases BaseOfDll = 0
   *      !foo fails always (despite what MSDN states)
   *      RE1!RE2 looks up all modules matching RE1, and in all these modules, lookup RE2
   *      no ! in Mask, lookup in local Context
   * cases BaseOfDll != 0
   *      !foo fails always (despite what MSDN states)
   *      RE1!RE2 gets RE2 from BaseOfDll (whatever RE1 is)
   */
  BOOL WINAPI SymEnumSymbols(HANDLE hProcess, ULONG64 BaseOfDll, PCSTR Mask,
                             PSYM_ENUMERATESYMBOLS_CALLBACK EnumSymbolsCallback,
                             PVOID UserContext)
  {
      BOOL                ret;
      PWSTR               maskW = NULL;
  
      TRACE("(%p %s %s %p %p)\n",
            hProcess, wine_dbgstr_longlong(BaseOfDll), debugstr_a(Mask),
            EnumSymbolsCallback, UserContext);
  
      if (Mask)
      {
          DWORD sz = MultiByteToWideChar(CP_ACP, 0, Mask, -1, NULL, 0);
          if (!(maskW = HeapAlloc(GetProcessHeap(), 0, sz * sizeof(WCHAR))))
              return FALSE;
          MultiByteToWideChar(CP_ACP, 0, Mask, -1, maskW, sz);
      }
      ret = doSymEnumSymbols(hProcess, BaseOfDll, maskW, EnumSymbolsCallback, UserContext);
      HeapFree(GetProcessHeap(), 0, maskW);
      return ret;
  }
  
  struct sym_enumW
  {
      PSYM_ENUMERATESYMBOLS_CALLBACKW     cb;
      void*                               ctx;
      PSYMBOL_INFOW                       sym_info;
      char                                buffer[sizeof(SYMBOL_INFOW) + MAX_SYM_NAME];
  
  };
      
  static BOOL CALLBACK sym_enumW(PSYMBOL_INFO si, ULONG size, PVOID ctx)
  {
      struct sym_enumW*   sew = ctx;
  
      copy_symbolW(sew->sym_info, si);
  
      return (sew->cb)(sew->sym_info, size, sew->ctx);
  }
  
  /******************************************************************
   *		SymEnumSymbolsW (DBGHELP.@)
   *
   */
  BOOL WINAPI SymEnumSymbolsW(HANDLE hProcess, ULONG64 BaseOfDll, PCWSTR Mask,
                              PSYM_ENUMERATESYMBOLS_CALLBACKW EnumSymbolsCallback,
                              PVOID UserContext)
  {
      struct sym_enumW    sew;
  
      sew.ctx = UserContext;
      sew.cb = EnumSymbolsCallback;
      sew.sym_info = (PSYMBOL_INFOW)sew.buffer;
  
      return doSymEnumSymbols(hProcess, BaseOfDll, Mask, sym_enumW, &sew);
  }
  
  struct sym_enumerate
  {
      void*                       ctx;
      PSYM_ENUMSYMBOLS_CALLBACK   cb;
  };
  
  static BOOL CALLBACK sym_enumerate_cb(PSYMBOL_INFO syminfo, ULONG size, void* ctx)
  {
      struct sym_enumerate*       se = ctx;
      return (se->cb)(syminfo->Name, syminfo->Address, syminfo->Size, se->ctx);
  }
  
  /***********************************************************************
   *		SymEnumerateSymbols (DBGHELP.@)
   */
  BOOL WINAPI SymEnumerateSymbols(HANDLE hProcess, DWORD BaseOfDll,
                                  PSYM_ENUMSYMBOLS_CALLBACK EnumSymbolsCallback, 
                                  PVOID UserContext)
  {
      struct sym_enumerate        se;
  
      se.ctx = UserContext;
      se.cb  = EnumSymbolsCallback;
      
      return SymEnumSymbols(hProcess, BaseOfDll, NULL, sym_enumerate_cb, &se);
  }
  
  struct sym_enumerate64
  {
      void*                       ctx;
      PSYM_ENUMSYMBOLS_CALLBACK64 cb;
  };
  
  static BOOL CALLBACK sym_enumerate_cb64(PSYMBOL_INFO syminfo, ULONG size, void* ctx)
  {
      struct sym_enumerate64*     se = ctx;
      return (se->cb)(syminfo->Name, syminfo->Address, syminfo->Size, se->ctx);
  }
  
  /***********************************************************************
   *              SymEnumerateSymbols64 (DBGHELP.@)
   */
  BOOL WINAPI SymEnumerateSymbols64(HANDLE hProcess, DWORD64 BaseOfDll,
                                    PSYM_ENUMSYMBOLS_CALLBACK64 EnumSymbolsCallback,
                                    PVOID UserContext)
  {
      struct sym_enumerate64      se;
  
      se.ctx = UserContext;
      se.cb  = EnumSymbolsCallback;
  
      return SymEnumSymbols(hProcess, BaseOfDll, NULL, sym_enumerate_cb64, &se);
  }
  
  /******************************************************************
   *		SymFromAddr (DBGHELP.@)
   *
   */
  BOOL WINAPI SymFromAddr(HANDLE hProcess, DWORD64 Address, 
                          DWORD64* Displacement, PSYMBOL_INFO Symbol)
  {
      struct module_pair  pair;
      struct symt_ht*     sym;
  
      pair.pcs = process_find_by_handle(hProcess);
      if (!pair.pcs) return FALSE;
      pair.requested = module_find_by_addr(pair.pcs, Address, DMT_UNKNOWN);
      if (!module_get_debug(&pair)) return FALSE;
      if ((sym = symt_find_nearest(pair.effective, Address)) == NULL) return FALSE;
  
      symt_fill_sym_info(&pair, NULL, &sym->symt, Symbol);
      if (Displacement)
          *Displacement = Address - Symbol->Address;
      return TRUE;
  }
  
  /******************************************************************
   *		SymFromAddrW (DBGHELP.@)
   *
   */
  BOOL WINAPI SymFromAddrW(HANDLE hProcess, DWORD64 Address, 
                           DWORD64* Displacement, PSYMBOL_INFOW Symbol)
  {
      PSYMBOL_INFO        si;
      unsigned            len;
      BOOL                ret;
  
      len = sizeof(*si) + Symbol->MaxNameLen * sizeof(WCHAR);
      si = HeapAlloc(GetProcessHeap(), 0, len);
      if (!si) return FALSE;
  
      si->SizeOfStruct = sizeof(*si);
      si->MaxNameLen = Symbol->MaxNameLen;
      if ((ret = SymFromAddr(hProcess, Address, Displacement, si)))
      {
          copy_symbolW(Symbol, si);
      }
      HeapFree(GetProcessHeap(), 0, si);
      return ret;
  }
  
  /******************************************************************
   *		SymGetSymFromAddr (DBGHELP.@)
   *
   */
  BOOL WINAPI SymGetSymFromAddr(HANDLE hProcess, DWORD Address,
                                PDWORD Displacement, PIMAGEHLP_SYMBOL Symbol)
  {
      char        buffer[sizeof(SYMBOL_INFO) + MAX_SYM_NAME];
      SYMBOL_INFO*si = (SYMBOL_INFO*)buffer;
      size_t      len;
      DWORD64     Displacement64;
  
      if (Symbol->SizeOfStruct < sizeof(*Symbol)) return FALSE;
      si->SizeOfStruct = sizeof(*si);
      si->MaxNameLen = MAX_SYM_NAME;
      if (!SymFromAddr(hProcess, Address, &Displacement64, si))
          return FALSE;
  
      if (Displacement)
          *Displacement = Displacement64;
      Symbol->Address = si->Address;
      Symbol->Size    = si->Size;
      Symbol->Flags   = si->Flags;
      len = min(Symbol->MaxNameLength, si->MaxNameLen);
      lstrcpynA(Symbol->Name, si->Name, len);
      return TRUE;
  }
  
  /******************************************************************
   *		SymGetSymFromAddr64 (DBGHELP.@)
   *
   */
  BOOL WINAPI SymGetSymFromAddr64(HANDLE hProcess, DWORD64 Address,
                                  PDWORD64 Displacement, PIMAGEHLP_SYMBOL64 Symbol)
  {
      char        buffer[sizeof(SYMBOL_INFO) + MAX_SYM_NAME];
      SYMBOL_INFO*si = (SYMBOL_INFO*)buffer;
      size_t      len;
      DWORD64     Displacement64;
  
      if (Symbol->SizeOfStruct < sizeof(*Symbol)) return FALSE;
      si->SizeOfStruct = sizeof(*si);
      si->MaxNameLen = MAX_SYM_NAME;
      if (!SymFromAddr(hProcess, Address, &Displacement64, si))
          return FALSE;
  
      if (Displacement)
          *Displacement = Displacement64;
      Symbol->Address = si->Address;
      Symbol->Size    = si->Size;
      Symbol->Flags   = si->Flags;
      len = min(Symbol->MaxNameLength, si->MaxNameLen);
      lstrcpynA(Symbol->Name, si->Name, len);
      return TRUE;
  }
  
  static BOOL find_name(struct process* pcs, struct module* module, const char* name,
                        SYMBOL_INFO* symbol)
  {
      struct hash_table_iter      hti;
      void*                       ptr;
      struct symt_ht*             sym = NULL;
      struct module_pair          pair;
  
      pair.pcs = pcs;
      if (!(pair.requested = module)) return FALSE;
      if (!module_get_debug(&pair)) return FALSE;
  
      hash_table_iter_init(&pair.effective->ht_symbols, &hti, name);
      while ((ptr = hash_table_iter_up(&hti)))
      {
          sym = GET_ENTRY(ptr, struct symt_ht, hash_elt);
  
          if (!strcmp(sym->hash_elt.name, name))
          {
              symt_fill_sym_info(&pair, NULL, &sym->symt, symbol);
              return TRUE;
          }
      }
      return FALSE;
  
  }
  /******************************************************************
   *		SymFromName (DBGHELP.@)
   *
   */
  BOOL WINAPI SymFromName(HANDLE hProcess, PCSTR Name, PSYMBOL_INFO Symbol)
  {
      struct process*             pcs = process_find_by_handle(hProcess);
      struct module*              module;
      const char*                 name;
  
      TRACE("(%p, %s, %p)\n", hProcess, Name, Symbol);
      if (!pcs) return FALSE;
      if (Symbol->SizeOfStruct < sizeof(*Symbol)) return FALSE;
      name = strchr(Name, '!');
      if (name)
      {
          char    tmp[128];
          assert(name - Name < sizeof(tmp));
          memcpy(tmp, Name, name - Name);
          tmp[name - Name] = '\0';
          module = module_find_by_nameA(pcs, tmp);
          return find_name(pcs, module, name + 1, Symbol);
      }
      for (module = pcs->lmodules; module; module = module->next)
      {
          if (module->type == DMT_PE && find_name(pcs, module, Name, Symbol))
              return TRUE;
      }
      /* not found in PE modules, retry on the ELF ones
       */
      if (dbghelp_options & SYMOPT_WINE_WITH_NATIVE_MODULES)
      {
          for (module = pcs->lmodules; module; module = module->next)
          {
              if ((module->type == DMT_ELF || module->type == DMT_MACHO) &&
                  !module_get_containee(pcs, module) &&
                  find_name(pcs, module, Name, Symbol))
                  return TRUE;
          }
      }
      return FALSE;
  }
  
  /***********************************************************************
   *		SymGetSymFromName64 (DBGHELP.@)
   */
  BOOL WINAPI SymGetSymFromName64(HANDLE hProcess, PCSTR Name, PIMAGEHLP_SYMBOL64 Symbol)
  {
      char        buffer[sizeof(SYMBOL_INFO) + MAX_SYM_NAME];
      SYMBOL_INFO*si = (SYMBOL_INFO*)buffer;
      size_t      len;
  
      if (Symbol->SizeOfStruct < sizeof(*Symbol)) return FALSE;
      si->SizeOfStruct = sizeof(*si);
      si->MaxNameLen = MAX_SYM_NAME;
      if (!SymFromName(hProcess, Name, si)) return FALSE;
  
      Symbol->Address = si->Address;
      Symbol->Size    = si->Size;
      Symbol->Flags   = si->Flags;
      len = min(Symbol->MaxNameLength, si->MaxNameLen);
      lstrcpynA(Symbol->Name, si->Name, len);
      return TRUE;
  }
  
  /***********************************************************************
   *		SymGetSymFromName (DBGHELP.@)
   */
  BOOL WINAPI SymGetSymFromName(HANDLE hProcess, PCSTR Name, PIMAGEHLP_SYMBOL Symbol)
  {
      char        buffer[sizeof(SYMBOL_INFO) + MAX_SYM_NAME];
      SYMBOL_INFO*si = (SYMBOL_INFO*)buffer;
      size_t      len;
  
      if (Symbol->SizeOfStruct < sizeof(*Symbol)) return FALSE;
      si->SizeOfStruct = sizeof(*si);
      si->MaxNameLen = MAX_SYM_NAME;
      if (!SymFromName(hProcess, Name, si)) return FALSE;
  
      Symbol->Address = si->Address;
      Symbol->Size    = si->Size;
      Symbol->Flags   = si->Flags;
      len = min(Symbol->MaxNameLength, si->MaxNameLen);
      lstrcpynA(Symbol->Name, si->Name, len);
      return TRUE;
  }
  
  /******************************************************************
   *		sym_fill_func_line_info
   *
   * fills information about a file
   */
  BOOL symt_fill_func_line_info(const struct module* module, const struct symt_function* func,
                                DWORD64 addr, IMAGEHLP_LINE64* line)
  {
      struct line_info*   dli = NULL;
      BOOL                found = FALSE;
      int                 i;
  
      assert(func->symt.tag == SymTagFunction);
  
      for (i=vector_length(&func->vlines)-1; i>=0; i--)
      {
          dli = vector_at(&func->vlines, i);
          if (!dli->is_source_file)
          {
              if (found || dli->u.pc_offset > addr) continue;
              line->LineNumber = dli->line_number;
              line->Address    = dli->u.pc_offset;
              line->Key        = dli;
              found = TRUE;
              continue;
          }
          if (found)
          {
              line->FileName = (char*)source_get(module, dli->u.source_file);
              return TRUE;
          }
      }
      return FALSE;
  }
  
  /***********************************************************************
   *		SymGetSymNext64 (DBGHELP.@)
   */
  BOOL WINAPI SymGetSymNext64(HANDLE hProcess, PIMAGEHLP_SYMBOL64 Symbol)
  {
      /* algo:
       * get module from Symbol.Address
       * get index in module.addr_sorttab of Symbol.Address
       * increment index
       * if out of module bounds, move to next module in process address space
       */
      FIXME("(%p, %p): stub\n", hProcess, Symbol);
      SetLastError(ERROR_CALL_NOT_IMPLEMENTED);
      return FALSE;
  }
  
  /***********************************************************************
   *		SymGetSymNext (DBGHELP.@)
   */
  BOOL WINAPI SymGetSymNext(HANDLE hProcess, PIMAGEHLP_SYMBOL Symbol)
  {
      FIXME("(%p, %p): stub\n", hProcess, Symbol);
      SetLastError(ERROR_CALL_NOT_IMPLEMENTED);
      return FALSE;
  }
  
  /***********************************************************************
   *		SymGetSymPrev64 (DBGHELP.@)
   */
  BOOL WINAPI SymGetSymPrev64(HANDLE hProcess, PIMAGEHLP_SYMBOL64 Symbol)
  {
      FIXME("(%p, %p): stub\n", hProcess, Symbol);
      SetLastError(ERROR_CALL_NOT_IMPLEMENTED);
      return FALSE;
  }
  
  /***********************************************************************
   *		SymGetSymPrev (DBGHELP.@)
   */
  BOOL WINAPI SymGetSymPrev(HANDLE hProcess, PIMAGEHLP_SYMBOL Symbol)
  {
      FIXME("(%p, %p): stub\n", hProcess, Symbol);
      SetLastError(ERROR_CALL_NOT_IMPLEMENTED);
      return FALSE;
  }
  
  /******************************************************************
   *		copy_line_64_from_32 (internal)
   *
   */
  static void copy_line_64_from_32(IMAGEHLP_LINE64* l64, const IMAGEHLP_LINE* l32)
  
  {
      l64->Key = l32->Key;
      l64->LineNumber = l32->LineNumber;
      l64->FileName = l32->FileName;
      l64->Address = l32->Address;
  }
  
  /******************************************************************
   *		copy_line_W64_from_32 (internal)
   *
   */
  static void copy_line_W64_from_64(struct process* pcs, IMAGEHLP_LINEW64* l64w, const IMAGEHLP_LINE64* l64)
  {
      unsigned len;
  
      l64w->Key = l64->Key;
      l64w->LineNumber = l64->LineNumber;
      len = MultiByteToWideChar(CP_ACP, 0, l64->FileName, -1, NULL, 0);
      if ((l64w->FileName = fetch_buffer(pcs, len * sizeof(WCHAR))))
          MultiByteToWideChar(CP_ACP, 0, l64->FileName, -1, l64w->FileName, len);
      l64w->Address = l64->Address;
  }
  
  /******************************************************************
   *		copy_line_32_from_64 (internal)
   *
   */
  static void copy_line_32_from_64(IMAGEHLP_LINE* l32, const IMAGEHLP_LINE64* l64)
  
  {
      l32->Key = l64->Key;
      l32->LineNumber = l64->LineNumber;
      l32->FileName = l64->FileName;
      l32->Address = l64->Address;
  }
  
  /******************************************************************
   *		SymGetLineFromAddr (DBGHELP.@)
   *
   */
  BOOL WINAPI SymGetLineFromAddr(HANDLE hProcess, DWORD dwAddr,
                                 PDWORD pdwDisplacement, PIMAGEHLP_LINE Line)
  {
      IMAGEHLP_LINE64     il64;
  
      il64.SizeOfStruct = sizeof(il64);
      if (!SymGetLineFromAddr64(hProcess, dwAddr, pdwDisplacement, &il64))
          return FALSE;
      copy_line_32_from_64(Line, &il64);
      return TRUE;
  }
  
  /******************************************************************
   *		SymGetLineFromAddr64 (DBGHELP.@)
   *
   */
  BOOL WINAPI SymGetLineFromAddr64(HANDLE hProcess, DWORD64 dwAddr, 
                                   PDWORD pdwDisplacement, PIMAGEHLP_LINE64 Line)
  {
      struct module_pair  pair;
      struct symt_ht*     symt;
  
      TRACE("%p %s %p %p\n", hProcess, wine_dbgstr_longlong(dwAddr), pdwDisplacement, Line);
  
      if (Line->SizeOfStruct < sizeof(*Line)) return FALSE;
  
      pair.pcs = process_find_by_handle(hProcess);
      if (!pair.pcs) return FALSE;
      pair.requested = module_find_by_addr(pair.pcs, dwAddr, DMT_UNKNOWN);
      if (!module_get_debug(&pair)) return FALSE;
      if ((symt = symt_find_nearest(pair.effective, dwAddr)) == NULL) return FALSE;
  
      if (symt->symt.tag != SymTagFunction) return FALSE;
      if (!symt_fill_func_line_info(pair.effective, (struct symt_function*)symt,
                                    dwAddr, Line)) return FALSE;
      *pdwDisplacement = dwAddr - Line->Address;
      return TRUE;
  }
  
  /******************************************************************
   *		SymGetLineFromAddrW64 (DBGHELP.@)
   *
   */
  BOOL WINAPI SymGetLineFromAddrW64(HANDLE hProcess, DWORD64 dwAddr, 
                                    PDWORD pdwDisplacement, PIMAGEHLP_LINEW64 Line)
  {
      IMAGEHLP_LINE64     il64;
  
      il64.SizeOfStruct = sizeof(il64);
      if (!SymGetLineFromAddr64(hProcess, dwAddr, pdwDisplacement, &il64))
          return FALSE;
      copy_line_W64_from_64(process_find_by_handle(hProcess), Line, &il64);
      return TRUE;
  }
  
  /******************************************************************
   *		SymGetLinePrev64 (DBGHELP.@)
   *
   */
  BOOL WINAPI SymGetLinePrev64(HANDLE hProcess, PIMAGEHLP_LINE64 Line)
  {
      struct module_pair  pair;
      struct line_info*   li;
      BOOL                in_search = FALSE;
  
      TRACE("(%p %p)\n", hProcess, Line);
  
      if (Line->SizeOfStruct < sizeof(*Line)) return FALSE;
  
      pair.pcs = process_find_by_handle(hProcess);
      if (!pair.pcs) return FALSE;
      pair.requested = module_find_by_addr(pair.pcs, Line->Address, DMT_UNKNOWN);
      if (!module_get_debug(&pair)) return FALSE;
  
      if (Line->Key == 0) return FALSE;
      li = Line->Key;
      /* things are a bit complicated because when we encounter a DLIT_SOURCEFILE
       * element we have to go back until we find the prev one to get the real
       * source file name for the DLIT_OFFSET element just before 
       * the first DLIT_SOURCEFILE
       */
      while (!li->is_first)
      {
          li--;
          if (!li->is_source_file)
          {
              Line->LineNumber = li->line_number;
              Line->Address    = li->u.pc_offset;
              Line->Key        = li;
              if (!in_search) return TRUE;
          }
          else
          {
              if (in_search)
              {
                  Line->FileName = (char*)source_get(pair.effective, li->u.source_file);
                  return TRUE;
              }
              in_search = TRUE;
          }
      }
      SetLastError(ERROR_NO_MORE_ITEMS); /* FIXME */
      return FALSE;
  }
  
  /******************************************************************
   *		SymGetLinePrev (DBGHELP.@)
   *
   */
  BOOL WINAPI SymGetLinePrev(HANDLE hProcess, PIMAGEHLP_LINE Line)
  {
      IMAGEHLP_LINE64     line64;
  
      line64.SizeOfStruct = sizeof(line64);
      copy_line_64_from_32(&line64, Line);
      if (!SymGetLinePrev64(hProcess, &line64)) return FALSE;
      copy_line_32_from_64(Line, &line64);
      return TRUE;
  }
  
  BOOL symt_get_func_line_next(const struct module* module, PIMAGEHLP_LINE64 line)
  {
      struct line_info*   li;
  
      if (line->Key == 0) return FALSE;
      li = line->Key;
      while (!li->is_last)
      {
          li++;
          if (!li->is_source_file)
          {
              line->LineNumber = li->line_number;
              line->Address    = li->u.pc_offset;
              line->Key        = li;
              return TRUE;
          }
          line->FileName = (char*)source_get(module, li->u.source_file);
      }
      return FALSE;
  }
  
  /******************************************************************
   *		SymGetLineNext64 (DBGHELP.@)
   *
   */
  BOOL WINAPI SymGetLineNext64(HANDLE hProcess, PIMAGEHLP_LINE64 Line)
  {
      struct module_pair  pair;
  
      TRACE("(%p %p)\n", hProcess, Line);
  
      if (Line->SizeOfStruct < sizeof(*Line)) return FALSE;
      pair.pcs = process_find_by_handle(hProcess);
      if (!pair.pcs) return FALSE;
      pair.requested = module_find_by_addr(pair.pcs, Line->Address, DMT_UNKNOWN);
      if (!module_get_debug(&pair)) return FALSE;
  
      if (symt_get_func_line_next(pair.effective, Line)) return TRUE;
      SetLastError(ERROR_NO_MORE_ITEMS); /* FIXME */
      return FALSE;
  }
  
  /******************************************************************
   *		SymGetLineNext (DBGHELP.@)
   *
   */
  BOOL WINAPI SymGetLineNext(HANDLE hProcess, PIMAGEHLP_LINE Line)
  {
      IMAGEHLP_LINE64     line64;
  
      line64.SizeOfStruct = sizeof(line64);
      copy_line_64_from_32(&line64, Line);
      if (!SymGetLineNext64(hProcess, &line64)) return FALSE;
      copy_line_32_from_64(Line, &line64);
      return TRUE;
  }
  
  /***********************************************************************
   *		SymUnDName (DBGHELP.@)
   */
  BOOL WINAPI SymUnDName(PIMAGEHLP_SYMBOL sym, PSTR UnDecName, DWORD UnDecNameLength)
  {
      return UnDecorateSymbolName(sym->Name, UnDecName, UnDecNameLength,
                                  UNDNAME_COMPLETE) != 0;
  }
  
  /***********************************************************************
   *		SymUnDName64 (DBGHELP.@)
   */
  BOOL WINAPI SymUnDName64(PIMAGEHLP_SYMBOL64 sym, PSTR UnDecName, DWORD UnDecNameLength)
  {
      return UnDecorateSymbolName(sym->Name, UnDecName, UnDecNameLength,
                                  UNDNAME_COMPLETE) != 0;
  }
  
  static void * CDECL und_alloc(size_t len) { return HeapAlloc(GetProcessHeap(), 0, len); }
  static void   CDECL und_free (void* ptr)  { HeapFree(GetProcessHeap(), 0, ptr); }
  
  /***********************************************************************
   *		UnDecorateSymbolName (DBGHELP.@)
   */
  DWORD WINAPI UnDecorateSymbolName(PCSTR DecoratedName, PSTR UnDecoratedName,
                                    DWORD UndecoratedLength, DWORD Flags)
  {
      /* undocumented from msvcrt */
      static HANDLE hMsvcrt;
      static char* (CDECL *p_undname)(char*, const char*, int, void* (CDECL*)(size_t), void (CDECL*)(void*), unsigned short);
      static const WCHAR szMsvcrt[] = {'m','s','v','c','r','t','.','d','l','l',0};
  
      TRACE("(%s, %p, %d, 0x%08x)\n",
            debugstr_a(DecoratedName), UnDecoratedName, UndecoratedLength, Flags);
  
      if (!p_undname)
      {
          if (!hMsvcrt) hMsvcrt = LoadLibraryW(szMsvcrt);
          if (hMsvcrt) p_undname = (void*)GetProcAddress(hMsvcrt, "__unDName");
          if (!p_undname) return 0;
      }
  
      if (!UnDecoratedName) return 0;
      if (!p_undname(UnDecoratedName, DecoratedName, UndecoratedLength, 
                     und_alloc, und_free, Flags))
          return 0;
      return strlen(UnDecoratedName);
  }
  
  #define WILDCHAR(x)      (-(x))
  
  static  int     re_fetch_char(const WCHAR** re)
  {
      switch (**re)
      {
      case '\\': (*re)++; return *(*re)++;
      case '*': case '[': case '?': case '+': case '#': case ']': return WILDCHAR(*(*re)++);
      default: return *(*re)++;
      }
  }
  
  static inline int  re_match_char(WCHAR ch1, WCHAR ch2, BOOL _case)
  {
      return _case ? ch1 - ch2 : toupperW(ch1) - toupperW(ch2);
  }
  
  static const WCHAR* re_match_one(const WCHAR* string, const WCHAR* elt, BOOL _case)
  {
      int         ch1, prev = 0;
      unsigned    state = 0;
  
      switch (ch1 = re_fetch_char(&elt))
      {
      default:
          return (ch1 >= 0 && re_match_char(*string, ch1, _case) == 0) ? ++string : NULL;
      case WILDCHAR('?'): return *string ? ++string : NULL;
      case WILDCHAR('*'): assert(0);
      case WILDCHAR('['): break;
      }
  
      for (;;)
      {
          ch1 = re_fetch_char(&elt);
          if (ch1 == WILDCHAR(']')) return NULL;
          if (state == 1 && ch1 == '-') state = 2;
          else
          {
              if (re_match_char(*string, ch1, _case) == 0) return ++string;
              switch (state)
              {
              case 0:
                  state = 1;
                  prev = ch1;
                  break;
              case 1:
                  state = 0;
                  break;
              case 2:
                  if (prev >= 0 && ch1 >= 0 && re_match_char(prev, *string, _case) <= 0 &&
                      re_match_char(*string, ch1, _case) <= 0)
                      return ++string;
                  state = 0;
                  break;
              }
          }
      }
  }
  
  /******************************************************************
   *		re_match_multi
   *
   * match a substring of *pstring according to *pre regular expression
   * pstring and pre are only updated in case of successful match
   */
  static BOOL re_match_multi(const WCHAR** pstring, const WCHAR** pre, BOOL _case)
  {
      const WCHAR* re_end = *pre;
      const WCHAR* string_end = *pstring;
      const WCHAR* re_beg;
      const WCHAR* string_beg;
      const WCHAR* next;
      int          ch;
  
      while (*re_end && *string_end)
      {
          string_beg = string_end;
          re_beg = re_end;
          switch (ch = re_fetch_char(&re_end))
          {
          case WILDCHAR(']'): case WILDCHAR('+'): case WILDCHAR('#'): return FALSE;
          case WILDCHAR('*'):
              /* transform '*' into '?#' */
              {static const WCHAR qmW[] = {'?',0}; re_beg = qmW;}
              goto closure;
          case WILDCHAR('['):
              do
              {
                  if (!(ch = re_fetch_char(&re_end))) return FALSE;
              } while (ch != WILDCHAR(']'));
              /* fall through */
          case WILDCHAR('?'):
          default:
              break;
          }
  
          switch (*re_end)
          {
          case '+':
              if (!(next = re_match_one(string_end, re_beg, _case))) return FALSE;
              string_beg++;
              /* fall through */
          case '#':
              re_end++;
          closure:
              while ((next = re_match_one(string_end, re_beg, _case))) string_end = next;
              for ( ; string_end >= string_beg; string_end--)
              {
                  if (re_match_multi(&string_end, &re_end, _case)) goto found;
              }
              return FALSE;
          default:
              if (!(next = re_match_one(string_end, re_beg, _case))) return FALSE;
              string_end = next;
          }
          re_beg = re_end;
      }
  
      if (*re_end || *string_end) return FALSE;
  
  found:
      *pre = re_end;
      *pstring = string_end;
      return TRUE;
  }
  
  /******************************************************************
   *		SymMatchStringA (DBGHELP.@)
   *
   */
  BOOL WINAPI SymMatchStringA(PCSTR string, PCSTR re, BOOL _case)
  {
      WCHAR*      strW;
      WCHAR*      reW;
      BOOL        ret = FALSE;
      DWORD       sz;
  
      if (!string || !re)
      {
          SetLastError(ERROR_INVALID_HANDLE);
          return FALSE;
      }
      TRACE("%s %s %c\n", string, re, _case ? 'Y' : 'N');
  
      sz = MultiByteToWideChar(CP_ACP, 0, string, -1, NULL, 0);
      if ((strW = HeapAlloc(GetProcessHeap(), 0, sz * sizeof(WCHAR))))
          MultiByteToWideChar(CP_ACP, 0, string, -1, strW, sz);
      sz = MultiByteToWideChar(CP_ACP, 0, re, -1, NULL, 0);
      if ((reW = HeapAlloc(GetProcessHeap(), 0, sz * sizeof(WCHAR))))
          MultiByteToWideChar(CP_ACP, 0, re, -1, reW, sz);
  
      if (strW && reW)
          ret = SymMatchStringW(strW, reW, _case);
      HeapFree(GetProcessHeap(), 0, strW);
      HeapFree(GetProcessHeap(), 0, reW);
      return ret;
  }
  
  /******************************************************************
   *		SymMatchStringW (DBGHELP.@)
   *
   */
  BOOL WINAPI SymMatchStringW(PCWSTR string, PCWSTR re, BOOL _case)
  {
      TRACE("%s %s %c\n", debugstr_w(string), debugstr_w(re), _case ? 'Y' : 'N');
  
      if (!string || !re)
      {
          SetLastError(ERROR_INVALID_HANDLE);
          return FALSE;
      }
      return re_match_multi(&string, &re, _case);
  }
  
  static inline BOOL doSymSearch(HANDLE hProcess, ULONG64 BaseOfDll, DWORD Index,
                                 DWORD SymTag, PCWSTR Mask, DWORD64 Address,
                                 PSYM_ENUMERATESYMBOLS_CALLBACK EnumSymbolsCallback,
                                 PVOID UserContext, DWORD Options)
  {
      struct sym_enum     se;
  
      if (Options != SYMSEARCH_GLOBALSONLY)
      {
          FIXME("Unsupported searching with options (%x)\n", Options);
          SetLastError(ERROR_INVALID_PARAMETER);
          return FALSE;
      }
  
      se.cb = EnumSymbolsCallback;
      se.user = UserContext;
      se.index = Index;
      se.tag = SymTag;
      se.addr = Address;
      se.sym_info = (PSYMBOL_INFO)se.buffer;
  
      return sym_enum(hProcess, BaseOfDll, Mask, &se);
  }
  
  /******************************************************************
   *		SymSearch (DBGHELP.@)
   */
  BOOL WINAPI SymSearch(HANDLE hProcess, ULONG64 BaseOfDll, DWORD Index,
                        DWORD SymTag, PCSTR Mask, DWORD64 Address,
                        PSYM_ENUMERATESYMBOLS_CALLBACK EnumSymbolsCallback,
                        PVOID UserContext, DWORD Options)
  {
      LPWSTR      maskW = NULL;
      BOOLEAN     ret;
  
      TRACE("(%p %s %u %u %s %s %p %p %x)\n",
            hProcess, wine_dbgstr_longlong(BaseOfDll), Index, SymTag, Mask,
            wine_dbgstr_longlong(Address), EnumSymbolsCallback,
            UserContext, Options);
  
      if (Mask)
      {
          DWORD sz = MultiByteToWideChar(CP_ACP, 0, Mask, -1, NULL, 0);
  
          if (!(maskW = HeapAlloc(GetProcessHeap(), 0, sz * sizeof(WCHAR))))
              return FALSE;
          MultiByteToWideChar(CP_ACP, 0, Mask, -1, maskW, sz);
      }
      ret = doSymSearch(hProcess, BaseOfDll, Index, SymTag, maskW, Address,
                        EnumSymbolsCallback, UserContext, Options);
      HeapFree(GetProcessHeap(), 0, maskW);
      return ret;
  }
  
  /******************************************************************
   *		SymSearchW (DBGHELP.@)
   */
  BOOL WINAPI SymSearchW(HANDLE hProcess, ULONG64 BaseOfDll, DWORD Index,
                         DWORD SymTag, PCWSTR Mask, DWORD64 Address,
                         PSYM_ENUMERATESYMBOLS_CALLBACKW EnumSymbolsCallback,
                         PVOID UserContext, DWORD Options)
  {
      struct sym_enumW    sew;
  
      TRACE("(%p %s %u %u %s %s %p %p %x)\n",
            hProcess, wine_dbgstr_longlong(BaseOfDll), Index, SymTag, debugstr_w(Mask),
            wine_dbgstr_longlong(Address), EnumSymbolsCallback,
            UserContext, Options);
  
      sew.ctx = UserContext;
      sew.cb = EnumSymbolsCallback;
      sew.sym_info = (PSYMBOL_INFOW)sew.buffer;
  
      return doSymSearch(hProcess, BaseOfDll, Index, SymTag, Mask, Address,
                         sym_enumW, &sew, Options);
  }
  
  /******************************************************************
   *		SymAddSymbol (DBGHELP.@)
   *
   */
  BOOL WINAPI SymAddSymbol(HANDLE hProcess, ULONG64 BaseOfDll, PCSTR name,
                           DWORD64 addr, DWORD size, DWORD flags)
  {
      WCHAR       nameW[MAX_SYM_NAME];
  
      MultiByteToWideChar(CP_ACP, 0, name, -1, nameW, sizeof(nameW) / sizeof(WCHAR));
      return SymAddSymbolW(hProcess, BaseOfDll, nameW, addr, size, flags);
  }
  
  /******************************************************************
   *		SymAddSymbolW (DBGHELP.@)
   *
   */
  BOOL WINAPI SymAddSymbolW(HANDLE hProcess, ULONG64 BaseOfDll, PCWSTR name,
                            DWORD64 addr, DWORD size, DWORD flags)
  {
      struct module_pair  pair;
  
      TRACE("(%p %s %s %u)\n", hProcess, wine_dbgstr_w(name), wine_dbgstr_longlong(addr), size);
  
      pair.pcs = process_find_by_handle(hProcess);
      if (!pair.pcs) return FALSE;
      pair.requested = module_find_by_addr(pair.pcs, BaseOfDll, DMT_UNKNOWN);
      if (!module_get_debug(&pair)) return FALSE;
  
      SetLastError(ERROR_CALL_NOT_IMPLEMENTED);
      return FALSE;
  }
  
  /******************************************************************
   *		SymSetScopeFromAddr (DBGHELP.@)
   */
  BOOL WINAPI SymSetScopeFromAddr(HANDLE hProcess, ULONG64 addr)
  {
      struct process*     pcs;
  
      FIXME("(%p %s): stub\n", hProcess, wine_dbgstr_longlong(addr));
  
      if (!(pcs = process_find_by_handle(hProcess))) return FALSE;
      return TRUE;
  }
  
  /******************************************************************
   *		SymEnumLines (DBGHELP.@)
   *
   */
  BOOL WINAPI SymEnumLines(HANDLE hProcess, ULONG64 base, PCSTR compiland,
                           PCSTR srcfile, PSYM_ENUMLINES_CALLBACK cb, PVOID user)
  {
      struct module_pair          pair;
      struct hash_table_iter      hti;
      struct symt_ht*             sym;
      WCHAR*                      srcmask;
      struct line_info*           dli;
      void*                       ptr;
      SRCCODEINFO                 sci;
      const char*                 file;
  
      if (!cb) return FALSE;
      if (!(dbghelp_options & SYMOPT_LOAD_LINES)) return TRUE;
  
      pair.pcs = process_find_by_handle(hProcess);
      if (!pair.pcs) return FALSE;
      if (compiland) FIXME("Unsupported yet (filtering on compiland %s)\n", compiland);
      pair.requested = module_find_by_addr(pair.pcs, base, DMT_UNKNOWN);
      if (!module_get_debug(&pair)) return FALSE;
      if (!(srcmask = file_regex(srcfile))) return FALSE;
  
      sci.SizeOfStruct = sizeof(sci);
      sci.ModBase      = base;
  
      hash_table_iter_init(&pair.effective->ht_symbols, &hti, NULL);
      while ((ptr = hash_table_iter_up(&hti)))
      {
          unsigned int    i;
  
          sym = GET_ENTRY(ptr, struct symt_ht, hash_elt);
          if (sym->symt.tag != SymTagFunction) continue;
  
          sci.FileName[0] = '\0';
          for (i=0; i<vector_length(&((struct symt_function*)sym)->vlines); i++)
          {
              dli = vector_at(&((struct symt_function*)sym)->vlines, i);
              if (dli->is_source_file)
              {
                  file = source_get(pair.effective, dli->u.source_file);
                  if (!file) sci.FileName[0] = '\0';
                  else
                  {
                      DWORD   sz = MultiByteToWideChar(CP_ACP, 0, file, -1, NULL, 0);
                      WCHAR*  fileW;
  
                      if ((fileW = HeapAlloc(GetProcessHeap(), 0, sz * sizeof(WCHAR))))
                          MultiByteToWideChar(CP_ACP, 0, file, -1, fileW, sz);
                      if (SymMatchStringW(fileW, srcmask, FALSE))
                          strcpy(sci.FileName, file);
                      else
                          sci.FileName[0] = '\0';
                      HeapFree(GetProcessHeap(), 0, fileW);
                  }
              }
              else if (sci.FileName[0])
              {
                  sci.Key = dli;
                  sci.Obj[0] = '\0'; /* FIXME */
                  sci.LineNumber = dli->line_number;
                  sci.Address = dli->u.pc_offset;
                  if (!cb(&sci, user)) break;
              }
          }
      }
      HeapFree(GetProcessHeap(), 0, srcmask);
      return TRUE;
  }
  
  BOOL WINAPI SymGetLineFromName(HANDLE hProcess, PCSTR ModuleName, PCSTR FileName,
                  DWORD dwLineNumber, PLONG plDisplacement, PIMAGEHLP_LINE Line)
  {
      FIXME("(%p) (%s, %s, %d %p %p): stub\n", hProcess, ModuleName, FileName,
                  dwLineNumber, plDisplacement, Line);
      return FALSE;
  }
  
  BOOL WINAPI SymGetLineFromName64(HANDLE hProcess, PCSTR ModuleName, PCSTR FileName,
                  DWORD dwLineNumber, PLONG lpDisplacement, PIMAGEHLP_LINE64 Line)
  {
      FIXME("(%p) (%s, %s, %d %p %p): stub\n", hProcess, ModuleName, FileName,
                  dwLineNumber, lpDisplacement, Line);
      return FALSE;
  }
  
  BOOL WINAPI SymGetLineFromNameW64(HANDLE hProcess, PCWSTR ModuleName, PCWSTR FileName,
                  DWORD dwLineNumber, PLONG plDisplacement, PIMAGEHLP_LINEW64 Line)
  {
      FIXME("(%p) (%s, %s, %d %p %p): stub\n", hProcess, debugstr_w(ModuleName), debugstr_w(FileName),
                  dwLineNumber, plDisplacement, Line);
      return FALSE;
  }
  
  /******************************************************************
   *		SymFromIndex (DBGHELP.@)
   *
   */
  BOOL WINAPI SymFromIndex(HANDLE hProcess, ULONG64 BaseOfDll, DWORD index, PSYMBOL_INFO symbol)
  {
      FIXME("hProcess = %p, BaseOfDll = %s, index = %d, symbol = %p\n",
            hProcess, wine_dbgstr_longlong(BaseOfDll), index, symbol);
  
      return FALSE;
  }
  
  /******************************************************************
   *		SymFromIndexW (DBGHELP.@)
   *
   */
  BOOL WINAPI SymFromIndexW(HANDLE hProcess, ULONG64 BaseOfDll, DWORD index, PSYMBOL_INFOW symbol)
  {
      FIXME("hProcess = %p, BaseOfDll = %s, index = %d, symbol = %p\n",
            hProcess, wine_dbgstr_longlong(BaseOfDll), index, symbol);
  
      return FALSE;
  }
  
  /******************************************************************
   *		SymSetHomeDirectory (DBGHELP.@)
   *
   */
  PCHAR WINAPI SymSetHomeDirectory(HANDLE hProcess, PCSTR dir)
  {
      FIXME("(%p, %s): stub\n", hProcess, dir);
  
      return NULL;
  }
  
  /******************************************************************
   *		SymSetHomeDirectoryW (DBGHELP.@)
   *
   */
  PWSTR WINAPI SymSetHomeDirectoryW(HANDLE hProcess, PCWSTR dir)
  {
      FIXME("(%p, %s): stub\n", hProcess, debugstr_w(dir));
  
      return NULL;
  }
  