[reactos] 14/179: [WINESYNC] dbghelp: Read the Elf_Dyn struct corresponding to the target's architecture.

[winesync]

https://git.reactos.org/?p=reactos.git;a=commitdiff;h=dd5baf8750f27108496ec…

commit dd5baf8750f27108496ec0dd4c765cc6118a7bec
Author:     winesync <ros-dev(a)reactos.org>
AuthorDate: Fri Sep 11 13:04:53 2020 +0200
Commit:     Jérôme Gardou <jerome.gardou(a)reactos.org>
CommitDate: Wed Sep 16 10:35:32 2020 +0200

    [WINESYNC] dbghelp: Read the Elf_Dyn struct corresponding to the target's
architecture.
    
    Signed-off-by: Zebediah Figura <zfigura(a)codeweavers.com>
    Signed-off-by: Alexandre Julliard <julliard(a)winehq.org>
    
    wine commit id bb53152faab705d972de3763ddd9bb3351e92460 by Zebediah Figura
<zfigura(a)codeweavers.com>
---
 dll/win32/dbghelp/elf_module.c    | 59 ++++++++++++++++++++++++++++-----------
 dll/win32/dbghelp/image_private.h |  2 --
 sdk/tools/winesync/dbghelp.cfg    |  2 +-
 3 files changed, 44 insertions(+), 19 deletions(-)

diff --git a/dll/win32/dbghelp/elf_module.c b/dll/win32/dbghelp/elf_module.c
index f84df836da6..2b444f8b015 100644
--- a/dll/win32/dbghelp/elf_module.c
+++ b/dll/win32/dbghelp/elf_module.c
@@ -1270,29 +1270,56 @@ static BOOL elf_load_file_from_fmap(struct process* pcs, const
WCHAR* filename,
 
         if (elf_find_section(fmap, ".dynamic", SHT_DYNAMIC, &ism))
         {
-            Elf_Dyn         dyn;
             char*           ptr =
(char*)(ULONG_PTR)fmap->u.elf.sect[ism.sidx].shdr.sh_addr;
             unsigned long   len;
 
             if (load_offset) ptr += load_offset - fmap->u.elf.elf_start;
 
-            do
+            if (fmap->addr_size == 32)
             {
-                if (!ReadProcessMemory(pcs->handle, ptr, &dyn, sizeof(dyn),
&len) ||
-                    len != sizeof(dyn))
-                    return ret;
-                if (dyn.d_tag == DT_DEBUG)
+                Elf32_Dyn dyn;
+
+                do
                 {
-                    elf_info->dbg_hdr_addr = dyn.d_un.d_ptr;
-                    if (load_offset == 0 && dyn_addr == 0) /* likely the case */
-                        /* Assume this module (the Wine loader) has been loaded at its
preferred address */
-                        dyn_addr = ism.fmap->u.elf.sect[ism.sidx].shdr.sh_addr;
-                    break;
-                }
-                ptr += sizeof(dyn);
-            } while (dyn.d_tag != DT_NULL);
-            if (dyn.d_tag == DT_NULL) return ret;
-	}
+                    if (!ReadProcessMemory(pcs->handle, ptr, &dyn, sizeof(dyn),
&len) ||
+                        len != sizeof(dyn))
+                        return ret;
+                    if (dyn.d_tag == DT_DEBUG)
+                    {
+                        elf_info->dbg_hdr_addr = dyn.d_un.d_ptr;
+                        if (load_offset == 0 && dyn_addr == 0) /* likely the case
*/
+                            /* Assume this module (the Wine loader) has been
+                             * loaded at its preferred address */
+                            dyn_addr = ism.fmap->u.elf.sect[ism.sidx].shdr.sh_addr;
+                        break;
+                    }
+                    ptr += sizeof(dyn);
+                } while (dyn.d_tag != DT_NULL);
+                if (dyn.d_tag == DT_NULL) return ret;
+            }
+            else
+            {
+                Elf64_Dyn dyn;
+
+                do
+                {
+                    if (!ReadProcessMemory(pcs->handle, ptr, &dyn, sizeof(dyn),
&len) ||
+                        len != sizeof(dyn))
+                        return ret;
+                    if (dyn.d_tag == DT_DEBUG)
+                    {
+                        elf_info->dbg_hdr_addr = dyn.d_un.d_ptr;
+                        if (load_offset == 0 && dyn_addr == 0) /* likely the case
*/
+                            /* Assume this module (the Wine loader) has been
+                             * loaded at its preferred address */
+                            dyn_addr = ism.fmap->u.elf.sect[ism.sidx].shdr.sh_addr;
+                        break;
+                    }
+                    ptr += sizeof(dyn);
+                } while (dyn.d_tag != DT_NULL);
+                if (dyn.d_tag == DT_NULL) return ret;
+            }
+        }
         elf_end_find(fmap);
     }
 
diff --git a/dll/win32/dbghelp/image_private.h b/dll/win32/dbghelp/image_private.h
index 868d346abdb..22e81ae3e01 100644
--- a/dll/win32/dbghelp/image_private.h
+++ b/dll/win32/dbghelp/image_private.h
@@ -61,11 +61,9 @@ typedef struct section              macho_section;
 #if defined(__ELF__) && !defined(DBGHELP_STATIC_LIB)
 
 #ifdef _WIN64
-#define         Elf_Dyn         Elf64_Dyn
 #define         Elf_Sym         Elf64_Sym
 #define         Elf_auxv_t      Elf64_auxv_t
 #else
-#define         Elf_Dyn         Elf32_Dyn
 #define         Elf_Sym         Elf32_Sym
 #define         Elf_auxv_t      Elf32_auxv_t
 #endif
diff --git a/sdk/tools/winesync/dbghelp.cfg b/sdk/tools/winesync/dbghelp.cfg
index ed6da1caf6a..15733bdd51b 100644
--- a/sdk/tools/winesync/dbghelp.cfg
+++ b/sdk/tools/winesync/dbghelp.cfg
@@ -3,4 +3,4 @@ directories:
 files:
   include/dbghelp.h: sdk/include/psdk/dbghelp.h
 tags:
-  wine: bd620ffb443eaa2dba997dc5597cb37c44d757b7
+  wine: bb53152faab705d972de3763ddd9bb3351e92460