Alexandre Julliard : server: Add a native_machine global variable.

[Alexandre Julliard]

Module: wine
Branch: master
Commit: 2ff7a7676c721c2fd5fb8097b38f17f3f5fd1faf
URL:    https://source.winehq.org/git/wine.git/?a=commit;h=2ff7a7676c721c2fd5fb8097b38f17f3f5fd1faf

Author: Alexandre Julliard <julliard at winehq.org>
Date:   Wed Jun 23 11:32:40 2021 +0200

server: Add a native_machine global variable.

Signed-off-by: Alexandre Julliard <julliard at winehq.org>

---

 server/debugger.c | 2 +-
 server/mapping.c  | 2 +-
 server/object.h   | 1 +
 server/process.c  | 2 +-
 server/registry.c | 4 +++-
 5 files changed, 7 insertions(+), 4 deletions(-)

diff --git a/server/debugger.c b/server/debugger.c
index 9b814469b19..b718c7c283f 100644
--- a/server/debugger.c
+++ b/server/debugger.c
@@ -134,7 +134,7 @@ static const struct object_ops debug_obj_ops =
 /* get a pointer to TEB->ArbitraryUserPointer in the client address space */
 static client_ptr_t get_teb_user_ptr( struct thread *thread )
 {
-    unsigned int ptr_size = is_machine_64bit( supported_machines[0] ) ? 8 : 4;
+    unsigned int ptr_size = is_machine_64bit( native_machine ) ? 8 : 4;
     return thread->teb + 5 * ptr_size;
 }
 
diff --git a/server/mapping.c b/server/mapping.c
index cd918224caa..529ce43bac9 100644
--- a/server/mapping.c
+++ b/server/mapping.c
@@ -717,7 +717,7 @@ static unsigned int get_image_params( struct mapping *mapping, file_pos_t file_s
         break;
 
     case IMAGE_NT_OPTIONAL_HDR64_MAGIC:
-        if (!is_machine_64bit( supported_machines[0] )) return STATUS_INVALID_IMAGE_WIN_64;
+        if (!is_machine_64bit( native_machine )) return STATUS_INVALID_IMAGE_WIN_64;
         if (!is_machine_64bit( nt.FileHeader.Machine )) return STATUS_INVALID_IMAGE_FORMAT;
         if (!is_machine_supported( nt.FileHeader.Machine )) return STATUS_INVALID_IMAGE_FORMAT;
 
diff --git a/server/object.h b/server/object.h
index e9d9a87875e..039bf4e7d4e 100644
--- a/server/object.h
+++ b/server/object.h
@@ -240,6 +240,7 @@ extern void generate_startup_debug_events( struct process *process );
 
 extern unsigned int supported_machines_count;
 extern unsigned short supported_machines[8];
+extern unsigned short native_machine;
 extern void init_registry(void);
 extern void flush_registry(void);
 
diff --git a/server/process.c b/server/process.c
index 5b271b12328..24b7abb49d5 100644
--- a/server/process.c
+++ b/server/process.c
@@ -1088,7 +1088,7 @@ int set_process_debug_flag( struct process *process, int flag )
     char data = (flag != 0);
     client_ptr_t peb32 = 0;
 
-    if (!is_machine_64bit( process->machine ) && is_machine_64bit( supported_machines[0] ))
+    if (!is_machine_64bit( process->machine ) && is_machine_64bit( native_machine ))
         peb32 = process->peb + 0x1000;
 
     /* BeingDebugged flag is the byte at offset 2 in the PEB */
diff --git a/server/registry.c b/server/registry.c
index 68ec4f9e39a..f36760e6cc1 100644
--- a/server/registry.c
+++ b/server/registry.c
@@ -147,6 +147,7 @@ static struct save_branch_info save_branch_info[MAX_SAVE_BRANCH_INFO];
 
 unsigned int supported_machines_count = 0;
 unsigned short supported_machines[8];
+unsigned short native_machine = 0;
 
 /* information about a file being loaded */
 struct file_load_info
@@ -1790,6 +1791,7 @@ static void init_supported_machines(void)
 #error Unsupported machine
 #endif
     supported_machines_count = count;
+    native_machine = supported_machines[0];
 }
 
 /* registry initialisation */
@@ -2071,7 +2073,7 @@ void flush_registry(void)
 /* determine if the thread is wow64 (32-bit client running on 64-bit prefix) */
 static int is_wow64_thread( struct thread *thread )
 {
-    return (is_machine_64bit( supported_machines[0] ) && !is_machine_64bit( thread->process->machine ));
+    return (is_machine_64bit( native_machine ) && !is_machine_64bit( thread->process->machine ));
 }