Alexandre Julliard : ntdll: Add fallback implementations for the Unix library functions.

[Alexandre Julliard]

Module: wine
Branch: master
Commit: d10410eac2b598699a3619d6e3f908e256af3afb
URL:    https://source.winehq.org/git/wine.git/?a=commit;h=d10410eac2b598699a3619d6e...

Author: Alexandre Julliard <julliard(a)winehq.org>
Date:   Thu Dec  2 09:59:40 2021 +0100

ntdll: Add fallback implementations for the Unix library functions.

Signed-off-by: Alexandre Julliard <julliard(a)winehq.org>

---

 dlls/ntdll/loader.c      | 40 ++++++++++++++++++++++++++++++++++++++--
 dlls/ntdll/unix/loader.c |  8 ++++----
 dlls/ntdll/unixlib.h     | 15 ++++++---------
 3 files changed, 48 insertions(+), 15 deletions(-)

diff --git a/dlls/ntdll/loader.c b/dlls/ntdll/loader.c
index 665c4480ad4..c33acd71759 100644
--- a/dlls/ntdll/loader.c
+++ b/dlls/ntdll/loader.c
@@ -76,8 +76,6 @@ static DWORD (WINAPI *pCtrlRoutine)(void *);
 
 SYSTEM_DLL_INIT_BLOCK LdrSystemDllInitBlock = { 0xf0 };
 
-const struct unix_funcs *unix_funcs = NULL;
-
 /* windows directory */
 const WCHAR windows_dir[] = L"C:\\windows";
 /* system directory with trailing backslash */
@@ -4443,6 +4441,44 @@ BOOL WINAPI DllMain( HINSTANCE inst, DWORD reason, LPVOID reserved )
 }
 
 
+static NTSTATUS CDECL load_so_dll_fallback( UNICODE_STRING *nt_name, void **module )
+{
+    return STATUS_INVALID_IMAGE_FORMAT;
+}
+
+static void CDECL init_builtin_dll_fallback( void *module )
+{
+}
+
+static NTSTATUS CDECL init_unix_lib_fallback( void *module, DWORD reason, const void *ptr_in, void *ptr_out )
+{
+    return STATUS_DLL_NOT_FOUND;
+}
+
+static NTSTATUS CDECL unwind_builtin_dll_fallback( ULONG type, struct _DISPATCHER_CONTEXT *dispatch,
+                                                   CONTEXT *context )
+{
+    return STATUS_UNSUCCESSFUL;
+}
+
+static LONGLONG WINAPI RtlGetSystemTimePrecise_fallback(void)
+{
+    LARGE_INTEGER now;
+    NtQuerySystemTime( &now );
+    return now.QuadPart;
+}
+
+static const struct unix_funcs unix_fallbacks =
+{
+    load_so_dll_fallback,
+    init_builtin_dll_fallback,
+    init_unix_lib_fallback,
+    unwind_builtin_dll_fallback,
+    RtlGetSystemTimePrecise_fallback,
+};
+
+const struct unix_funcs *unix_funcs = &unix_fallbacks;
+
 /***********************************************************************
  *           __wine_set_unix_funcs
  */
diff --git a/dlls/ntdll/unix/loader.c b/dlls/ntdll/unix/loader.c
index 61041061b32..82d099de3be 100644
--- a/dlls/ntdll/unix/loader.c
+++ b/dlls/ntdll/unix/loader.c
@@ -2156,14 +2156,14 @@ static ULONG_PTR get_image_address(void)
  */
 static struct unix_funcs unix_funcs =
 {
-#ifdef __aarch64__
-    NtCurrentTeb,
-#endif
-    RtlGetSystemTimePrecise,
     load_so_dll,
     init_builtin_dll,
     init_unix_lib,
     unwind_builtin_dll,
+    RtlGetSystemTimePrecise,
+#ifdef __aarch64__
+    NtCurrentTeb,
+#endif
 };
 
 
diff --git a/dlls/ntdll/unixlib.h b/dlls/ntdll/unixlib.h
index 803b6a082bb..d60f8cc50e4 100644
--- a/dlls/ntdll/unixlib.h
+++ b/dlls/ntdll/unixlib.h
@@ -26,24 +26,21 @@
 struct _DISPATCHER_CONTEXT;
 
 /* increment this when you change the function table */
-#define NTDLL_UNIXLIB_VERSION 132
+#define NTDLL_UNIXLIB_VERSION 133
 
 struct unix_funcs
 {
-    /* Nt* functions */
-#ifdef __aarch64__
-    TEB *         (WINAPI *NtCurrentTeb)(void);
-#endif
-
-    /* other Win32 API functions */
-    LONGLONG      (WINAPI *RtlGetSystemTimePrecise)(void);
-
     /* loader functions */
     NTSTATUS      (CDECL *load_so_dll)( UNICODE_STRING *nt_name, void **module );
     void          (CDECL *init_builtin_dll)( void *module );
     NTSTATUS      (CDECL *init_unix_lib)( void *module, DWORD reason, const void *ptr_in, void *ptr_out );
     NTSTATUS      (CDECL *unwind_builtin_dll)( ULONG type, struct _DISPATCHER_CONTEXT *dispatch,
                                                CONTEXT *context );
+    /* other Win32 API functions */
+    LONGLONG      (WINAPI *RtlGetSystemTimePrecise)(void);
+#ifdef __aarch64__
+    TEB *         (WINAPI *NtCurrentTeb)(void);
+#endif
 };
 
 #endif /* __NTDLL_UNIXLIB_H */