From 2a87a89680be2fecd87e73a1fbae1f65d3749441 Mon Sep 17 00:00:00 2001
From: Eric Pouech <eric.pouech@orange.fr>
Date: Sat, 9 Oct 2010 08:51:15 +0200
Subject: [PATCH] dbghelp: Only map an ELF file once.

---
 dlls/dbghelp/dbghelp_private.h |  2 +-
 dlls/dbghelp/elf_module.c      | 26 ++++++--------------------
 dlls/dbghelp/module.c          |  2 +-
 3 files changed, 8 insertions(+), 22 deletions(-)

diff --git a/dlls/dbghelp/dbghelp_private.h b/dlls/dbghelp/dbghelp_private.h
index 44e62f34b24..63b9f391b50 100644
--- a/dlls/dbghelp/dbghelp_private.h
+++ b/dlls/dbghelp/dbghelp_private.h
@@ -511,7 +511,7 @@ typedef BOOL (*enum_modules_cb)(const WCHAR*, unsigned long addr, void* user);
 extern BOOL         elf_enum_modules(HANDLE hProc, enum_modules_cb, void*);
 extern BOOL         elf_fetch_file_info(const WCHAR* name, DWORD_PTR* base, DWORD* size, DWORD* checksum);
 struct image_file_map;
-extern BOOL         elf_load_debug_info(struct module* module, struct image_file_map* fmap);
+extern BOOL         elf_load_debug_info(struct module* module);
 extern struct module*
                     elf_load_module(struct process* pcs, const WCHAR* name, unsigned long);
 extern BOOL         elf_read_wine_loader_dbg_info(struct process* pcs);
diff --git a/dlls/dbghelp/elf_module.c b/dlls/dbghelp/elf_module.c
index 395b5648223..514c2882365 100644
--- a/dlls/dbghelp/elf_module.c
+++ b/dlls/dbghelp/elf_module.c
@@ -948,12 +948,11 @@ static BOOL elf_load_debug_info_from_map(struct module* module,
  *
  * Loads ELF debugging information from the module image file.
  */
-BOOL elf_load_debug_info(struct module* module, struct image_file_map* fmap)
+BOOL elf_load_debug_info(struct module* module)
 {
     BOOL                        ret = TRUE;
     struct pool                 pool;
     struct hash_table           ht_symtab;
-    struct image_file_map       my_fmap;
     struct module_format*       modfmt;
 
     if (module->type != DMT_ELF || !(modfmt = module->format_info[DFI_ELF]) || !modfmt->u.elf_info)
@@ -965,22 +964,9 @@ BOOL elf_load_debug_info(struct module* module, struct image_file_map* fmap)
     pool_init(&pool, 65536);
     hash_table_init(&pool, &ht_symtab, 256);
 
-    if (!fmap)
-    {
-        fmap = &my_fmap;
-        ret = elf_map_file(module->module.LoadedImageName, fmap);
-    }
-    if (ret)
-        ret = elf_load_debug_info_from_map(module, fmap, &pool, &ht_symtab);
-
-    if (ret)
-    {
-        modfmt->u.elf_info->file_map = *fmap;
-        elf_reset_file_map(fmap);
-    }
+    ret = elf_load_debug_info_from_map(module, &modfmt->u.elf_info->file_map, &pool, &ht_symtab);
 
     pool_destroy(&pool);
-    if (fmap == &my_fmap) elf_unmap_file(fmap);
     return ret;
 }
 
@@ -1090,14 +1076,14 @@ static BOOL elf_load_file(struct process* pcs, const WCHAR* filename,
 
         elf_module_info->elf_addr = load_offset;
 
+        elf_module_info->file_map = fmap;
+        elf_reset_file_map(&fmap);
         if (dbghelp_options & SYMOPT_DEFERRED_LOADS)
         {
             elf_info->module->module.SymType = SymDeferred;
-            elf_module_info->file_map = fmap;
-            elf_reset_file_map(&fmap);
             ret = TRUE;
         }
-        else ret = elf_load_debug_info(elf_info->module, &fmap);
+        else ret = elf_load_debug_info(elf_info->module);
 
         elf_module_info->elf_mark = 1;
         elf_module_info->elf_loader = 0;
@@ -1523,7 +1509,7 @@ struct module*  elf_load_module(struct process* pcs, const WCHAR* name, unsigned
     return NULL;
 }
 
-BOOL elf_load_debug_info(struct module* module, struct image_file_map* fmap)
+BOOL elf_load_debug_info(struct module* module)
 {
     return FALSE;
 }
diff --git a/dlls/dbghelp/module.c b/dlls/dbghelp/module.c
index 89422a9fc09..adadcb79110 100644
--- a/dlls/dbghelp/module.c
+++ b/dlls/dbghelp/module.c
@@ -310,7 +310,7 @@ BOOL module_get_debug(struct module_pair* pair)
         else switch (pair->effective->type)
         {
         case DMT_ELF:
-            ret = elf_load_debug_info(pair->effective, NULL);
+            ret = elf_load_debug_info(pair->effective);
             break;
         case DMT_PE:
             idslW64.SizeOfStruct = sizeof(idslW64);