text: /*
   * File pe_module.c - handle PE module information
   *
   * Copyright (C) 1996,      Eric Youngdale.
   * Copyright (C) 1999-2000, Ulrich Weigand.
   * Copyright (C) 2004-2007, Eric Pouech.
   *
   * This library is free software; you can redistribute it and/or
   * modify it under the terms of the GNU Lesser General Public
   * License as published by the Free Software Foundation; either
   * version 2.1 of the License, or (at your option) any later version.
   *
   * This library is distributed in the hope that it will be useful,
   * but WITHOUT ANY WARRANTY; without even the implied warranty of
   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
   * Lesser General Public License for more details.
   *
   * You should have received a copy of the GNU Lesser General Public
   * License along with this library; if not, write to the Free Software
   * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
   *
   */
  
  #include "config.h"
  #include "wine/port.h"
  
  #include <stdlib.h>
  #include <stdio.h>
  #include <string.h>
  #include <assert.h>
  
  #include "dbghelp_private.h"
  #include "image_private.h"
  #include "winternl.h"
  #include "wine/debug.h"
  
  WINE_DEFAULT_DEBUG_CHANNEL(dbghelp);
  
  struct pe_module_info
  {
      struct image_file_map       fmap;
  };
  
  static void* pe_map_full(struct image_file_map* fmap, IMAGE_NT_HEADERS** nth)
  {
      if (!fmap->u.pe.full_map)
      {
          fmap->u.pe.full_map = MapViewOfFile(fmap->u.pe.hMap, FILE_MAP_READ, 0, 0, 0);
      }
      if (fmap->u.pe.full_map)
      {
          if (nth) *nth = RtlImageNtHeader(fmap->u.pe.full_map);
          fmap->u.pe.full_count++;
          return fmap->u.pe.full_map;
      }
      return NULL;
  }
  
  static void pe_unmap_full(struct image_file_map* fmap)
  {
      if (fmap->u.pe.full_count && !--fmap->u.pe.full_count)
      {
          UnmapViewOfFile(fmap->u.pe.full_map);
          fmap->u.pe.full_map = NULL;
      }
  }
  
  /******************************************************************
   *		pe_map_section
   *
   * Maps a single section into memory from an PE file
   */
  const char* pe_map_section(struct image_section_map* ism)
  {
      void*       mapping;
      struct pe_file_map* fmap = &ism->fmap->u.pe;
  
      if (ism->sidx >= 0 && ism->sidx < fmap->ntheader.FileHeader.NumberOfSections &&
          fmap->sect[ism->sidx].mapped == IMAGE_NO_MAP)
      {
          IMAGE_NT_HEADERS*       nth;
  
          if (fmap->sect[ism->sidx].shdr.Misc.VirtualSize > fmap->sect[ism->sidx].shdr.SizeOfRawData)
          {
              FIXME("Section %ld: virtual (0x%x) > raw (0x%x) size - not supported\n",
                    ism->sidx, fmap->sect[ism->sidx].shdr.Misc.VirtualSize,
                    fmap->sect[ism->sidx].shdr.SizeOfRawData);
              return IMAGE_NO_MAP;
          }
          /* FIXME: that's rather drastic, but that will do for now
           * that's ok if the full file map exists, but we could be less aggressive otherwise and
           * only map the relevant section
           */
          if ((mapping = pe_map_full(ism->fmap, &nth)))
          {
              fmap->sect[ism->sidx].mapped = RtlImageRvaToVa(nth, mapping,
                                                             fmap->sect[ism->sidx].shdr.VirtualAddress,
                                                             NULL);
              return fmap->sect[ism->sidx].mapped;
          }
      }
      return IMAGE_NO_MAP;
  }
  
  /******************************************************************
   *		pe_find_section
   *
   * Finds a section by name (and type) into memory from an PE file
   * or its alternate if any
   */
  BOOL pe_find_section(struct image_file_map* fmap, const char* name,
                       struct image_section_map* ism)
  {
      const char*                 sectname;
      unsigned                    i;
      char                        tmp[IMAGE_SIZEOF_SHORT_NAME + 1];
  
      for (i = 0; i < fmap->u.pe.ntheader.FileHeader.NumberOfSections; i++)
      {
          sectname = (const char*)fmap->u.pe.sect[i].shdr.Name;
          /* long section names start with a '/' (at least on MinGW32) */
          if (sectname[0] == '/' && fmap->u.pe.strtable)
              sectname = fmap->u.pe.strtable + atoi(sectname + 1);
          else
          {
              /* the section name may not be null terminated */
              sectname = memcpy(tmp, sectname, IMAGE_SIZEOF_SHORT_NAME);
              tmp[IMAGE_SIZEOF_SHORT_NAME] = '\0';
          }
          if (!_strnicmp(sectname, name, -1))
          {
              ism->fmap = fmap;
              ism->sidx = i;
              return TRUE;
          }
      }
      ism->fmap = NULL;
      ism->sidx = -1;
  
      return FALSE;
  }
  
  /******************************************************************
   *		pe_unmap_section
   *
   * Unmaps a single section from memory
   */
  void pe_unmap_section(struct image_section_map* ism)
  {
      if (ism->sidx >= 0 && ism->sidx < ism->fmap->u.pe.ntheader.FileHeader.NumberOfSections &&
          ism->fmap->u.pe.sect[ism->sidx].mapped != IMAGE_NO_MAP)
      {
          pe_unmap_full(ism->fmap);
          ism->fmap->u.pe.sect[ism->sidx].mapped = IMAGE_NO_MAP;
      }
  }
  
  /******************************************************************
   *		pe_get_map_rva
   *
   * Get the RVA of an PE section
   */
  DWORD_PTR pe_get_map_rva(const struct image_section_map* ism)
  {
      if (ism->sidx < 0 || ism->sidx >= ism->fmap->u.pe.ntheader.FileHeader.NumberOfSections)
          return 0;
      return ism->fmap->u.pe.sect[ism->sidx].shdr.VirtualAddress;
  }
  
  /******************************************************************
   *		pe_get_map_size
   *
   * Get the size of a PE section
   */
  unsigned pe_get_map_size(const struct image_section_map* ism)
  {
      if (ism->sidx < 0 || ism->sidx >= ism->fmap->u.pe.ntheader.FileHeader.NumberOfSections)
          return 0;
      return ism->fmap->u.pe.sect[ism->sidx].shdr.Misc.VirtualSize;
  }
  
  /******************************************************************
   *		pe_is_valid_pointer_table
   *
   * Checks whether the PointerToSymbolTable and NumberOfSymbols in file_header contain
   * valid information.
   */
  static BOOL pe_is_valid_pointer_table(const IMAGE_NT_HEADERS* nthdr, const void* mapping, DWORD64 sz)
  {
      DWORD64     offset;
  
      /* is the iSym table inside file size ? (including first DWORD of string table, which is its size) */
      offset = (DWORD64)nthdr->FileHeader.PointerToSymbolTable;
      offset += (DWORD64)nthdr->FileHeader.NumberOfSymbols * sizeof(IMAGE_SYMBOL);
      if (offset + sizeof(DWORD) > sz) return FALSE;
      /* is string table (following iSym table) inside file size ? */
      offset += *(DWORD*)((const char*)mapping + offset);
      return offset <= sz;
  }
  
  /******************************************************************
   *		pe_map_file
   *
   * Maps an PE file into memory (and checks it's a real PE file)
   */
  static BOOL pe_map_file(HANDLE file, struct image_file_map* fmap, enum module_type mt)
  {
      void*       mapping;
  
      fmap->modtype = mt;
      fmap->u.pe.hMap = CreateFileMappingW(file, NULL, PAGE_READONLY, 0, 0, NULL);
      if (fmap->u.pe.hMap == 0) return FALSE;
      fmap->u.pe.full_count = 0;
      fmap->u.pe.full_map = NULL;
      if (!(mapping = pe_map_full(fmap, NULL))) goto error;
  
      switch (mt)
      {
      case DMT_PE:
          {
              IMAGE_NT_HEADERS*       nthdr;
              IMAGE_SECTION_HEADER*   section;
              unsigned                i;
  
              if (!(nthdr = RtlImageNtHeader(mapping))) goto error;
              memcpy(&fmap->u.pe.ntheader, nthdr, sizeof(fmap->u.pe.ntheader));
              switch (nthdr->OptionalHeader.Magic)
              {
              case 0x10b: fmap->addr_size = 32; break;
              case 0x20b: fmap->addr_size = 64; break;
              default: return FALSE;
              }
              section = (IMAGE_SECTION_HEADER*)
                  ((char*)&nthdr->OptionalHeader + nthdr->FileHeader.SizeOfOptionalHeader);
              fmap->u.pe.sect = HeapAlloc(GetProcessHeap(), 0,
                                          nthdr->FileHeader.NumberOfSections * sizeof(fmap->u.pe.sect[0]));
              if (!fmap->u.pe.sect) goto error;
              for (i = 0; i < nthdr->FileHeader.NumberOfSections; i++)
              {
                  memcpy(&fmap->u.pe.sect[i].shdr, section + i, sizeof(IMAGE_SECTION_HEADER));
                  fmap->u.pe.sect[i].mapped = IMAGE_NO_MAP;
              }
              if (nthdr->FileHeader.PointerToSymbolTable && nthdr->FileHeader.NumberOfSymbols)
              {
                  LARGE_INTEGER li;
  
                  if (GetFileSizeEx(file, &li) && pe_is_valid_pointer_table(nthdr, mapping, li.QuadPart))
                  {
                      /* FIXME ugly: should rather map the relevant content instead of copying it */
                      const char* src = (const char*)mapping +
                          nthdr->FileHeader.PointerToSymbolTable +
                          nthdr->FileHeader.NumberOfSymbols * sizeof(IMAGE_SYMBOL);
                      char* dst;
                      DWORD sz = *(DWORD*)src;
  
                      if ((dst = HeapAlloc(GetProcessHeap(), 0, sz)))
                          memcpy(dst, src, sz);
                      fmap->u.pe.strtable = dst;
                  }
                  else
                  {
                      WARN("Bad coff table... wipping out\n");
                      /* we have bad information here, wipe it out */
                      fmap->u.pe.ntheader.FileHeader.PointerToSymbolTable = 0;
                      fmap->u.pe.ntheader.FileHeader.NumberOfSymbols = 0;
                      fmap->u.pe.strtable = NULL;
                  }
              }
              else fmap->u.pe.strtable = NULL;
          }
          break;
      default: assert(0); goto error;
      }
      pe_unmap_full(fmap);
  
      return TRUE;
  error:
      pe_unmap_full(fmap);
      CloseHandle(fmap->u.pe.hMap);
      return FALSE;
  }
  
  /******************************************************************
   *		pe_unmap_file
   *
   * Unmaps an PE file from memory (previously mapped with pe_map_file)
   */
  static void pe_unmap_file(struct image_file_map* fmap)
  {
      if (fmap->u.pe.hMap != 0)
      {
          struct image_section_map  ism;
          ism.fmap = fmap;
          for (ism.sidx = 0; ism.sidx < fmap->u.pe.ntheader.FileHeader.NumberOfSections; ism.sidx++)
          {
              pe_unmap_section(&ism);
          }
          while (fmap->u.pe.full_count) pe_unmap_full(fmap);
          HeapFree(GetProcessHeap(), 0, fmap->u.pe.sect);
          HeapFree(GetProcessHeap(), 0, (void*)fmap->u.pe.strtable); /* FIXME ugly (see pe_map_file) */
          CloseHandle(fmap->u.pe.hMap);
          fmap->u.pe.hMap = NULL;
      }
  }
  
  /******************************************************************
   *		pe_map_directory
   *
   * Maps a directory content out of a PE file
   */
  const char* pe_map_directory(struct module* module, int dirno, DWORD* size)
  {
      IMAGE_NT_HEADERS*   nth;
      void*               mapping;
  
      if (module->type != DMT_PE || !module->format_info[DFI_PE]) return NULL;
      if (dirno >= IMAGE_NUMBEROF_DIRECTORY_ENTRIES ||
          !(mapping = pe_map_full(&module->format_info[DFI_PE]->u.pe_info->fmap, &nth)))
          return NULL;
      if (size) *size = nth->OptionalHeader.DataDirectory[dirno].Size;
      return RtlImageRvaToVa(nth, mapping,
                             nth->OptionalHeader.DataDirectory[dirno].VirtualAddress, NULL);
  }
  
  static void pe_module_remove(struct process* pcs, struct module_format* modfmt)
  {
      pe_unmap_file(&modfmt->u.pe_info->fmap);
      HeapFree(GetProcessHeap(), 0, modfmt);
  }
  
  /******************************************************************
   *		pe_locate_with_coff_symbol_table
   *
   * Use the COFF symbol table (if any) from the IMAGE_FILE_HEADER to set the absolute address
   * of global symbols.
   * Mingw32 requires this for stabs debug information as address for global variables isn't filled in
   * (this is similar to what is done in elf_module.c when using the .symtab ELF section)
   */
  static BOOL pe_locate_with_coff_symbol_table(struct module* module)
  {
      struct image_file_map* fmap = &module->format_info[DFI_PE]->u.pe_info->fmap;
      const IMAGE_SYMBOL* isym;
      int                 i, numsym, naux;
      char                tmp[9];
      const char*         name;
      struct hash_table_iter      hti;
      void*               ptr;
      struct symt_data*   sym;
      const char*         mapping;
  
      numsym = fmap->u.pe.ntheader.FileHeader.NumberOfSymbols;
      if (!fmap->u.pe.ntheader.FileHeader.PointerToSymbolTable || !numsym)
          return TRUE;
      if (!(mapping = pe_map_full(fmap, NULL))) return FALSE;
      isym = (const IMAGE_SYMBOL*)(mapping + fmap->u.pe.ntheader.FileHeader.PointerToSymbolTable);
  
      for (i = 0; i < numsym; i+= naux, isym += naux)
      {
          if (isym->StorageClass == IMAGE_SYM_CLASS_EXTERNAL &&
              isym->SectionNumber > 0 && isym->SectionNumber <= fmap->u.pe.ntheader.FileHeader.NumberOfSections)
          {
              if (isym->N.Name.Short)
              {
                  name = memcpy(tmp, isym->N.ShortName, 8);
                  tmp[8] = '\0';
              }
              else name = fmap->u.pe.strtable + isym->N.Name.Long;
              if (name[0] == '_') name++;
              hash_table_iter_init(&module->ht_symbols, &hti, name);
              while ((ptr = hash_table_iter_up(&hti)))
              {
                  sym = CONTAINING_RECORD(ptr, struct symt_data, hash_elt);
                  if (sym->symt.tag == SymTagData &&
                      (sym->kind == DataIsGlobal || sym->kind == DataIsFileStatic) &&
                      sym->u.var.kind == loc_absolute &&
                      !strcmp(sym->hash_elt.name, name))
                  {
                      TRACE("Changing absolute address for %d.%s: %lx -> %s\n",
                            isym->SectionNumber, name, sym->u.var.offset,
                            wine_dbgstr_longlong(module->module.BaseOfImage +
                                                 fmap->u.pe.sect[isym->SectionNumber - 1].shdr.VirtualAddress +
                                                 isym->Value));
                      sym->u.var.offset = module->module.BaseOfImage +
                          fmap->u.pe.sect[isym->SectionNumber - 1].shdr.VirtualAddress + isym->Value;
                      break;
                  }
              }
          }
          naux = isym->NumberOfAuxSymbols + 1;
      }
      pe_unmap_full(fmap);
      return TRUE;
  }
  
  /******************************************************************
   *		pe_load_coff_symbol_table
   *
   * Load public symbols out of the COFF symbol table (if any).
   */
  static BOOL pe_load_coff_symbol_table(struct module* module)
  {
      struct image_file_map* fmap = &module->format_info[DFI_PE]->u.pe_info->fmap;
      const IMAGE_SYMBOL* isym;
      int                 i, numsym, naux;
      const char*         strtable;
      char                tmp[9];
      const char*         name;
      const char*         lastfilename = NULL;
      struct symt_compiland*   compiland = NULL;
      const IMAGE_SECTION_HEADER* sect;
      const char*         mapping;
  
      numsym = fmap->u.pe.ntheader.FileHeader.NumberOfSymbols;
      if (!fmap->u.pe.ntheader.FileHeader.PointerToSymbolTable || !numsym)
          return TRUE;
      if (!(mapping = pe_map_full(fmap, NULL))) return FALSE;
      isym = (const IMAGE_SYMBOL*)((const char*)mapping + fmap->u.pe.ntheader.FileHeader.PointerToSymbolTable);
      /* FIXME: no way to get strtable size */
      strtable = (const char*)&isym[numsym];
      sect = IMAGE_FIRST_SECTION(RtlImageNtHeader((HMODULE)mapping));
  
      for (i = 0; i < numsym; i+= naux, isym += naux)
      {
          if (isym->StorageClass == IMAGE_SYM_CLASS_FILE)
          {
              lastfilename = (const char*)(isym + 1);
              compiland = NULL;
          }
          if (isym->StorageClass == IMAGE_SYM_CLASS_EXTERNAL &&
              isym->SectionNumber > 0 && isym->SectionNumber <= fmap->u.pe.ntheader.FileHeader.NumberOfSections)
          {
              if (isym->N.Name.Short)
              {
                  name = memcpy(tmp, isym->N.ShortName, 8);
                  tmp[8] = '\0';
              }
              else name = strtable + isym->N.Name.Long;
              if (name[0] == '_') name++;
  
              if (!compiland && lastfilename)
                  compiland = symt_new_compiland(module, 0,
                                                 source_new(module, NULL, lastfilename));
  
              if (!(dbghelp_options & SYMOPT_NO_PUBLICS))
                  symt_new_public(module, compiland, name, FALSE,
                                  module->module.BaseOfImage + sect[isym->SectionNumber - 1].VirtualAddress +
                                       isym->Value,
                                  1);
          }
          naux = isym->NumberOfAuxSymbols + 1;
      }
      module->module.SymType = SymCoff;
      module->module.LineNumbers = FALSE;
      module->module.GlobalSymbols = FALSE;
      module->module.TypeInfo = FALSE;
      module->module.SourceIndexed = FALSE;
      module->module.Publics = TRUE;
      pe_unmap_full(fmap);
  
      return TRUE;
  }
  
  /******************************************************************
   *		pe_load_stabs
   *
   * look for stabs information in PE header (it's how the mingw compiler provides 
   * its debugging information)
   */
  static BOOL pe_load_stabs(const struct process* pcs, struct module* module)
  {
      struct image_file_map*      fmap = &module->format_info[DFI_PE]->u.pe_info->fmap;
      struct image_section_map    sect_stabs, sect_stabstr;
      BOOL                        ret = FALSE;
  
      if (pe_find_section(fmap, ".stab", &sect_stabs) && pe_find_section(fmap, ".stabstr", &sect_stabstr))
      {
          const char* stab;
          const char* stabstr;
  
          stab = image_map_section(&sect_stabs);
          stabstr = image_map_section(&sect_stabstr);
          if (stab != IMAGE_NO_MAP && stabstr != IMAGE_NO_MAP)
          {
              ret = stabs_parse(module,
                                module->module.BaseOfImage - fmap->u.pe.ntheader.OptionalHeader.ImageBase,
                                stab, image_get_map_size(&sect_stabs),
                                stabstr, image_get_map_size(&sect_stabstr),
                                NULL, NULL);
          }
          image_unmap_section(&sect_stabs);
          image_unmap_section(&sect_stabstr);
          if (ret) pe_locate_with_coff_symbol_table(module);
      }
      TRACE("%s the STABS debug info\n", ret ? "successfully loaded" : "failed to load");
  
      return ret;
  }
  
  /******************************************************************
   *		pe_load_dwarf
   *
   * look for dwarf information in PE header (it's also a way for the mingw compiler
   * to provide its debugging information)
   */
  static BOOL pe_load_dwarf(struct module* module)
  {
      struct image_file_map*      fmap = &module->format_info[DFI_PE]->u.pe_info->fmap;
      BOOL                        ret;
  
      ret = dwarf2_parse(module,
                         module->module.BaseOfImage - fmap->u.pe.ntheader.OptionalHeader.ImageBase,
                         NULL, /* FIXME: some thunks to deal with ? */
                         fmap);
      TRACE("%s the DWARF debug info\n", ret ? "successfully loaded" : "failed to load");
  
      return ret;
  }
  
  /******************************************************************
   *		pe_load_dbg_file
   *
   * loads a .dbg file
   */
  static BOOL pe_load_dbg_file(const struct process* pcs, struct module* module,
                               const char* dbg_name, DWORD timestamp)
  {
      WCHAR tmp[MAX_PATH];
      HANDLE                              hFile = INVALID_HANDLE_VALUE, hMap = 0;
      const BYTE*                         dbg_mapping = NULL;
      BOOL                                ret = FALSE;
  
      TRACE("Processing DBG file %s\n", debugstr_a(dbg_name));
  
      if (path_find_symbol_file(pcs, module, dbg_name, NULL, timestamp, 0, tmp, &module->module.DbgUnmatched) &&
          (hFile = CreateFileW(tmp, GENERIC_READ, FILE_SHARE_READ, NULL,
                               OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL)) != INVALID_HANDLE_VALUE &&
          ((hMap = CreateFileMappingW(hFile, NULL, PAGE_READONLY, 0, 0, NULL)) != 0) &&
          ((dbg_mapping = MapViewOfFile(hMap, FILE_MAP_READ, 0, 0, 0)) != NULL))
      {
          const IMAGE_SEPARATE_DEBUG_HEADER*      hdr;
          const IMAGE_SECTION_HEADER*             sectp;
          const IMAGE_DEBUG_DIRECTORY*            dbg;
  
          hdr = (const IMAGE_SEPARATE_DEBUG_HEADER*)dbg_mapping;
          /* section headers come immediately after debug header */
          sectp = (const IMAGE_SECTION_HEADER*)(hdr + 1);
          /* and after that and the exported names comes the debug directory */
          dbg = (const IMAGE_DEBUG_DIRECTORY*)
              (dbg_mapping + sizeof(*hdr) +
               hdr->NumberOfSections * sizeof(IMAGE_SECTION_HEADER) +
               hdr->ExportedNamesSize);
  
          ret = pe_load_debug_directory(pcs, module, dbg_mapping, sectp,
                                        hdr->NumberOfSections, dbg,
                                        hdr->DebugDirectorySize / sizeof(*dbg));
      }
      else
          ERR("Couldn't find .DBG file %s (%s)\n", debugstr_a(dbg_name), debugstr_w(tmp));
  
      if (dbg_mapping) UnmapViewOfFile(dbg_mapping);
      if (hMap) CloseHandle(hMap);
      if (hFile != INVALID_HANDLE_VALUE) CloseHandle(hFile);
      return ret;
  }
  
  /******************************************************************
   *		pe_load_msc_debug_info
   *
   * Process MSC debug information in PE file.
   */
  static BOOL pe_load_msc_debug_info(const struct process* pcs, struct module* module)
  {
      struct image_file_map*      fmap = &module->format_info[DFI_PE]->u.pe_info->fmap;
      BOOL                        ret = FALSE;
      const IMAGE_DEBUG_DIRECTORY*dbg;
      ULONG                       nDbg;
      void*                       mapping;
      IMAGE_NT_HEADERS*           nth;
  
      if (!(mapping = pe_map_full(fmap, &nth))) return FALSE;
      /* Read in debug directory */
      dbg = RtlImageDirectoryEntryToData( mapping, FALSE, IMAGE_DIRECTORY_ENTRY_DEBUG, &nDbg );
      if (!dbg || !(nDbg /= sizeof(IMAGE_DEBUG_DIRECTORY))) goto done;
  
      /* Parse debug directory */
      if (nth->FileHeader.Characteristics & IMAGE_FILE_DEBUG_STRIPPED)
      {
          /* Debug info is stripped to .DBG file */
          const IMAGE_DEBUG_MISC* misc = (const IMAGE_DEBUG_MISC*)
              ((const char*)mapping + dbg->PointerToRawData);
  
          if (nDbg != 1 || dbg->Type != IMAGE_DEBUG_TYPE_MISC ||
              misc->DataType != IMAGE_DEBUG_MISC_EXENAME)
          {
              ERR("-Debug info stripped, but no .DBG file in module %s\n",
                  debugstr_w(module->module.ModuleName));
          }
          else
          {
              ret = pe_load_dbg_file(pcs, module, (const char*)misc->Data, nth->FileHeader.TimeDateStamp);
          }
      }
      else
      {
          const IMAGE_SECTION_HEADER *sectp = (const IMAGE_SECTION_HEADER*)((const char*)&nth->OptionalHeader + nth->FileHeader.SizeOfOptionalHeader);
          /* Debug info is embedded into PE module */
          ret = pe_load_debug_directory(pcs, module, mapping, sectp,
                                        nth->FileHeader.NumberOfSections, dbg, nDbg);
      }
  done:
      pe_unmap_full(fmap);
      return ret;
  }
  
  /***********************************************************************
   *			pe_load_export_debug_info
   */
  static BOOL pe_load_export_debug_info(const struct process* pcs, struct module* module)
  {
      struct image_file_map*              fmap = &module->format_info[DFI_PE]->u.pe_info->fmap;
      unsigned int 		        i;
      const IMAGE_EXPORT_DIRECTORY* 	exports;
      DWORD			        base = module->module.BaseOfImage;
      DWORD                               size;
      IMAGE_NT_HEADERS*                   nth;
      void*                               mapping;
  
      if (dbghelp_options & SYMOPT_NO_PUBLICS) return TRUE;
  
      if (!(mapping = pe_map_full(fmap, &nth))) return FALSE;
  #if 0
      /* Add start of DLL (better use the (yet unimplemented) Exe SymTag for this) */
      /* FIXME: module.ModuleName isn't correctly set yet if it's passed in SymLoadModule */
      symt_new_public(module, NULL, module->module.ModuleName, FALSE, base, 1);
  #endif
      
      /* Add entry point */
      symt_new_public(module, NULL, "EntryPoint", FALSE,
                      base + nth->OptionalHeader.AddressOfEntryPoint, 1);
  #if 0
      /* FIXME: we'd better store addresses linked to sections rather than 
         absolute values */
      IMAGE_SECTION_HEADER*       section;
      /* Add start of sections */
      section = (IMAGE_SECTION_HEADER*)
          ((char*)&nth->OptionalHeader + nth->FileHeader.SizeOfOptionalHeader);
      for (i = 0; i < nth->FileHeader.NumberOfSections; i++, section++) 
      {
  	symt_new_public(module, NULL, section->Name, FALSE,
                          RtlImageRvaToVa(nth, mapping, section->VirtualAddress, NULL), 1);
      }
  #endif
  
      /* Add exported functions */
      if ((exports = RtlImageDirectoryEntryToData(mapping, FALSE,
                                                  IMAGE_DIRECTORY_ENTRY_EXPORT, &size)))
      {
          const WORD*             ordinals = NULL;
          const DWORD_PTR*	functions = NULL;
          const DWORD*		names = NULL;
          unsigned int		j;
          char			buffer[16];
  
          functions = RtlImageRvaToVa(nth, mapping, exports->AddressOfFunctions, NULL);
          ordinals  = RtlImageRvaToVa(nth, mapping, exports->AddressOfNameOrdinals, NULL);
          names     = RtlImageRvaToVa(nth, mapping, exports->AddressOfNames, NULL);
  
          if (functions && ordinals && names)
          {
              for (i = 0; i < exports->NumberOfNames; i++)
              {
                  if (!names[i]) continue;
                  symt_new_public(module, NULL,
                                  RtlImageRvaToVa(nth, mapping, names[i], NULL),
                                  FALSE,
                                  base + functions[ordinals[i]], 1);
              }
  
              for (i = 0; i < exports->NumberOfFunctions; i++)
              {
                  if (!functions[i]) continue;
                  /* Check if we already added it with a name */
                  for (j = 0; j < exports->NumberOfNames; j++)
                      if ((ordinals[j] == i) && names[j]) break;
                  if (j < exports->NumberOfNames) continue;
                  snprintf(buffer, sizeof(buffer), "%d", i + exports->Base);
                  symt_new_public(module, NULL, buffer, FALSE, base + (DWORD)functions[i], 1);
              }
          }
      }
      /* no real debug info, only entry points */
      if (module->module.SymType == SymDeferred)
          module->module.SymType = SymExport;
      pe_unmap_full(fmap);
  
      return TRUE;
  }
  
  /******************************************************************
   *		pe_load_debug_info
   *
   */
  BOOL pe_load_debug_info(const struct process* pcs, struct module* module)
  {
      BOOL                ret = FALSE;
  
      if (!(dbghelp_options & SYMOPT_PUBLICS_ONLY))
      {
          ret = pe_load_stabs(pcs, module);
          ret = pe_load_dwarf(module) || ret;
          ret = pe_load_msc_debug_info(pcs, module) || ret;
          ret = ret || pe_load_coff_symbol_table(module); /* FIXME */
          /* if we still have no debug info (we could only get SymExport at this
           * point), then do the SymExport except if we have an ELF container,
           * in which case we'll rely on the export's on the ELF side
           */
      }
      /* FIXME shouldn't we check that? if (!module_get_debug(pcs, module)) */
      if (pe_load_export_debug_info(pcs, module) && !ret)
          ret = TRUE;
  
      return ret;
  }
  
  /******************************************************************
   *		pe_load_native_module
   *
   */
  struct module* pe_load_native_module(struct process* pcs, const WCHAR* name,
                                       HANDLE hFile, DWORD64 base, DWORD size)
  {
      struct module*              module = NULL;
      BOOL                        opened = FALSE;
      struct module_format*       modfmt;
      WCHAR                       loaded_name[MAX_PATH];
  
      loaded_name[0] = '\0';
      if (!hFile)
      {
          assert(name);
  
          if ((hFile = FindExecutableImageExW(name, pcs->search_path, loaded_name, NULL, NULL)) == NULL)
              return NULL;
          opened = TRUE;
      }
      else if (name) strcpyW(loaded_name, name);
      else if (dbghelp_options & SYMOPT_DEFERRED_LOADS)
          FIXME("Trouble ahead (no module name passed in deferred mode)\n");
      if (!(modfmt = HeapAlloc(GetProcessHeap(), 0, sizeof(struct module_format) + sizeof(struct pe_module_info))))
          return NULL;
      modfmt->u.pe_info = (struct pe_module_info*)(modfmt + 1);
      if (pe_map_file(hFile, &modfmt->u.pe_info->fmap, DMT_PE))
      {
          if (!base) base = modfmt->u.pe_info->fmap.u.pe.ntheader.OptionalHeader.ImageBase;
          if (!size) size = modfmt->u.pe_info->fmap.u.pe.ntheader.OptionalHeader.SizeOfImage;
  
          module = module_new(pcs, loaded_name, DMT_PE, FALSE, base, size,
                              modfmt->u.pe_info->fmap.u.pe.ntheader.FileHeader.TimeDateStamp,
                              modfmt->u.pe_info->fmap.u.pe.ntheader.OptionalHeader.CheckSum);
          if (module)
          {
              modfmt->module = module;
              modfmt->remove = pe_module_remove;
              modfmt->loc_compute = NULL;
  
              module->format_info[DFI_PE] = modfmt;
              if (dbghelp_options & SYMOPT_DEFERRED_LOADS)
                  module->module.SymType = SymDeferred;
              else
                  pe_load_debug_info(pcs, module);
              module->reloc_delta = base - modfmt->u.pe_info->fmap.u.pe.ntheader.OptionalHeader.ImageBase;
          }
          else
          {
              ERR("could not load the module '%s'\n", debugstr_w(loaded_name));
              pe_unmap_file(&modfmt->u.pe_info->fmap);
          }
      }
      if (!module) HeapFree(GetProcessHeap(), 0, modfmt);
  
      if (opened) CloseHandle(hFile);
  
      return module;
  }
  
  /******************************************************************
   *		pe_load_nt_header
   *
   */
  BOOL pe_load_nt_header(HANDLE hProc, DWORD64 base, IMAGE_NT_HEADERS* nth)
  {
      IMAGE_DOS_HEADER    dos;
  
      return ReadProcessMemory(hProc, (char*)(DWORD_PTR)base, &dos, sizeof(dos), NULL) &&
          dos.e_magic == IMAGE_DOS_SIGNATURE &&
          ReadProcessMemory(hProc, (char*)(DWORD_PTR)(base + dos.e_lfanew),
                            nth, sizeof(*nth), NULL) &&
          nth->Signature == IMAGE_NT_SIGNATURE;
  }
  
  /******************************************************************
   *		pe_load_builtin_module
   *
   */
  struct module* pe_load_builtin_module(struct process* pcs, const WCHAR* name,
                                        DWORD64 base, DWORD64 size)
  {
      struct module*      module = NULL;
  
      if (base && pcs->dbg_hdr_addr)
      {
          IMAGE_NT_HEADERS    nth;
  
          if (pe_load_nt_header(pcs->handle, base, &nth))
          {
              if (!size) size = nth.OptionalHeader.SizeOfImage;
              module = module_new(pcs, name, DMT_PE, FALSE, base, size,
                                  nth.FileHeader.TimeDateStamp,
                                  nth.OptionalHeader.CheckSum);
          }
      }
      return module;
  }
  
  /***********************************************************************
   *           ImageDirectoryEntryToDataEx (DBGHELP.@)
   *
   * Search for specified directory in PE image
   *
   * PARAMS
   *
   *   base    [in]  Image base address
   *   image   [in]  TRUE - image has been loaded by loader, FALSE - raw file image
   *   dir     [in]  Target directory index
   *   size    [out] Receives directory size
   *   section [out] Receives pointer to section header of section containing directory data
   *
   * RETURNS
   *   Success: pointer to directory data
   *   Failure: NULL
   *
   */
  PVOID WINAPI ImageDirectoryEntryToDataEx( PVOID base, BOOLEAN image, USHORT dir, PULONG size, PIMAGE_SECTION_HEADER *section )
  {
      const IMAGE_NT_HEADERS *nt;
      DWORD addr;
  
      *size = 0;
      if (section) *section = NULL;
  
      if (!(nt = RtlImageNtHeader( base ))) return NULL;
      if (nt->OptionalHeader.Magic == IMAGE_NT_OPTIONAL_HDR64_MAGIC)
      {
          const IMAGE_NT_HEADERS64 *nt64 = (const IMAGE_NT_HEADERS64 *)nt;
  
          if (dir >= nt64->OptionalHeader.NumberOfRvaAndSizes) return NULL;
          if (!(addr = nt64->OptionalHeader.DataDirectory[dir].VirtualAddress)) return NULL;
          *size = nt64->OptionalHeader.DataDirectory[dir].Size;
          if (image || addr < nt64->OptionalHeader.SizeOfHeaders) return (char *)base + addr;
      }
      else if (nt->OptionalHeader.Magic == IMAGE_NT_OPTIONAL_HDR32_MAGIC)
      {
          const IMAGE_NT_HEADERS32 *nt32 = (const IMAGE_NT_HEADERS32 *)nt;
  
          if (dir >= nt32->OptionalHeader.NumberOfRvaAndSizes) return NULL;
          if (!(addr = nt32->OptionalHeader.DataDirectory[dir].VirtualAddress)) return NULL;
          *size = nt32->OptionalHeader.DataDirectory[dir].Size;
          if (image || addr < nt32->OptionalHeader.SizeOfHeaders) return (char *)base + addr;
      }
      else return NULL;
  
      return RtlImageRvaToVa( nt, base, addr, section );
  }
  
  /***********************************************************************
   *         ImageDirectoryEntryToData   (DBGHELP.@)
   *
   * NOTES
   *   See ImageDirectoryEntryToDataEx
   */
  PVOID WINAPI ImageDirectoryEntryToData( PVOID base, BOOLEAN image, USHORT dir, PULONG size )
  {
      return ImageDirectoryEntryToDataEx( base, image, dir, size, NULL );
  }
  