[reactos] 154/179: [WINESYNC] dbghelp: Don't bother trying to initialize loader backend if we can't get debug base address from PEB.

[winesync]

https://git.reactos.org/?p=reactos.git;a=commitdiff;h=e2e7cce46f0c587da93f9…

commit e2e7cce46f0c587da93f9bed8fa5dfd8673bd97c
Author:     winesync <ros-dev(a)reactos.org>
AuthorDate: Fri Sep 11 19:00:43 2020 +0200
Commit:     Jérôme Gardou <jerome.gardou(a)reactos.org>
CommitDate: Wed Sep 16 10:35:56 2020 +0200

    [WINESYNC] dbghelp: Don't bother trying to initialize loader backend if we
can't get debug base address from PEB.
    
    Signed-off-by: Jacek Caban <jacek(a)codeweavers.com>
    Signed-off-by: Alexandre Julliard <julliard(a)winehq.org>
    
    wine commit id 3047385437c7ef36996d0418ac378677f3e9d67c by Jacek Caban
<jacek(a)codeweavers.com>
---
 dll/win32/dbghelp/dbghelp.c      | 5 +++++
 dll/win32/dbghelp/macho_module.c | 3 +--
 sdk/tools/winesync/dbghelp.cfg   | 2 +-
 3 files changed, 7 insertions(+), 3 deletions(-)

diff --git a/dll/win32/dbghelp/dbghelp.c b/dll/win32/dbghelp/dbghelp.c
index a5acc786606..a92b3dd2893 100644
--- a/dll/win32/dbghelp/dbghelp.c
+++ b/dll/win32/dbghelp/dbghelp.c
@@ -309,6 +309,11 @@ static BOOL check_live_target(struct process* pcs)
         base = base32;
     }
     else ReadProcessMemory(pcs->handle, &pbi.PebBaseAddress->Reserved[0],
&base, sizeof(base), NULL);
+#ifndef __REACTOS__
+    /* Wine store their loader base address in peb.reserved[0] and load its symbol from
there.
+     * ReactOS does not care about it */
+    if (!base) return FALSE;
+#endif
 
     TRACE("got debug info address %#lx from PEB %p\n", base,
pbi.PebBaseAddress);
     return elf_read_wine_loader_dbg_info(pcs, base) ||
macho_read_wine_loader_dbg_info(pcs, base);
diff --git a/dll/win32/dbghelp/macho_module.c b/dll/win32/dbghelp/macho_module.c
index 8aa232e1ed2..413a25c663d 100644
--- a/dll/win32/dbghelp/macho_module.c
+++ b/dll/win32/dbghelp/macho_module.c
@@ -1845,8 +1845,7 @@ static BOOL macho_search_loader(struct process* pcs, struct
macho_info* macho_in
         len = sizeof(image_infos.infos64);
     else
         len = sizeof(image_infos.infos32);
-    if (pcs->dbg_hdr_addr &&
-        ReadProcessMemory(pcs->handle, (void*)pcs->dbg_hdr_addr, &image_infos,
len, NULL))
+    if (ReadProcessMemory(pcs->handle, (void*)pcs->dbg_hdr_addr, &image_infos,
len, NULL))
     {
         if (pcs->is_64bit)
             len = sizeof(image_info.info64);
diff --git a/sdk/tools/winesync/dbghelp.cfg b/sdk/tools/winesync/dbghelp.cfg
index 4b2aa38d50d..4018c66b2e1 100644
--- a/sdk/tools/winesync/dbghelp.cfg
+++ b/sdk/tools/winesync/dbghelp.cfg
@@ -4,4 +4,4 @@ files:
   include/dbghelp.h: sdk/include/psdk/dbghelp.h
   include/wine/mscvpdb.h: sdk/include/reactos/wine/mscvpdb.h
 tags:
-  wine: f2b8af7e7e159a5259aaab42169c4f8220b121eb
+  wine: 3047385437c7ef36996d0418ac378677f3e9d67c