Alexandre Julliard : winebuild: Add a helper function to output a thunk data pointer.

[Alexandre Julliard]

Module: wine
Branch: master
Commit: 29060f3d7812d511cb11cb2f8d87c6c43b075881
URL:    https://gitlab.winehq.org/wine/wine/-/commit/29060f3d7812d511cb11cb2f8d87c6c...

Author: Alexandre Julliard <julliard(a)winehq.org>
Date:   Tue Nov 29 13:55:01 2022 +0100

winebuild: Add a helper function to output a thunk data pointer.

---

 tools/winebuild/build.h  |  2 ++
 tools/winebuild/import.c | 33 ++++-----------------------------
 tools/winebuild/utils.c  | 32 ++++++++++++++++++++++++++++++++
 3 files changed, 38 insertions(+), 29 deletions(-)

diff --git a/tools/winebuild/build.h b/tools/winebuild/build.h
index 576304cd2b8..f501cca8f84 100644
--- a/tools/winebuild/build.h
+++ b/tools/winebuild/build.h
@@ -252,6 +252,8 @@ extern void output_cfi( const char *format, ... )
    __attribute__ ((__format__ (__printf__, 1, 2)));
 extern void output_rva( const char *format, ... )
    __attribute__ ((__format__ (__printf__, 1, 2)));
+extern void output_thunk_rva( int ordinal, const char *format, ... )
+   __attribute__ ((__format__ (__printf__, 2, 3)));
 extern void spawn( struct strarray array );
 extern struct strarray find_tool( const char *name, const char * const *names );
 extern struct strarray find_link_tool(void);
diff --git a/tools/winebuild/import.c b/tools/winebuild/import.c
index 9f87adcf593..57adbef0d23 100644
--- a/tools/winebuild/import.c
+++ b/tools/winebuild/import.c
@@ -869,16 +869,8 @@ static void output_immediate_imports(void)
                     if (func->name) output( "__imp_%s:\n", asm_name( func->name ));
                     else if (func->export_name) output( "__imp_%s:\n", asm_name( func->export_name ));
                 }
-                if (func->name)
-                    output( "\t%s .L__wine_spec_import_data_%s_%s-.L__wine_spec_rva_base\n",
-                            get_asm_ptr_keyword(), import->c_name, func->name );
-                else
-                {
-                    if (get_ptr_size() == 8)
-                        output( "\t.quad 0x800000000000%04x\n", func->ordinal );
-                    else
-                        output( "\t.long 0x8000%04x\n", func->ordinal );
-                }
+                output_thunk_rva( func->name ? -1 : func->ordinal,
+                                  ".L__wine_spec_import_data_%s_%s", import->c_name, func->name );
             }
             output( "\t%s 0\n", get_asm_ptr_keyword() );
         }
@@ -1861,31 +1853,14 @@ static void build_windows_import_lib( const char *lib_name, DLLSPEC *spec, struc
             }
 
             output( "\n\t.section \".idata$4\"\n" );
-            if (by_name)
-            {
-                output_rva( ".L__wine_import_name" );
-                if (get_ptr_size() == 8) output( "\t.long 0\n" );
-            }
-            else
-            {
-                if (get_ptr_size() == 4) output( "\t.long 0x8000%04x\n", odp->ordinal );
-                else output( "\t.quad 0x800000000000%04x\n", odp->ordinal );
-            }
+            output_thunk_rva( by_name ? -1 : odp->ordinal, ".L__wine_import_name" );
 
             output( "\n\t.section \".idata$5\"\n" );
             output( "%s\n", asm_globl( imp_name ) );
             if (is_delay)
                 output( "\t%s .L__wine_delay_import\n", get_asm_ptr_keyword() );
-            else if (by_name)
-            {
-                output_rva( ".L__wine_import_name" );
-                if (get_ptr_size() == 8) output( "\t.long 0\n" );
-            }
             else
-            {
-                if (get_ptr_size() == 4) output( "\t.long 0x8000%04x\n", odp->ordinal );
-                else output( "\t.quad 0x800000000000%04x\n", odp->ordinal );
-            }
+                output_thunk_rva( by_name ? -1 : odp->ordinal, ".L__wine_import_name" );
 
             if (by_name)
             {
diff --git a/tools/winebuild/utils.c b/tools/winebuild/utils.c
index 7f10939da36..21de209f65c 100644
--- a/tools/winebuild/utils.c
+++ b/tools/winebuild/utils.c
@@ -984,6 +984,38 @@ void output_rva( const char *format, ... )
     va_end( valist );
 }
 
+/* output an RVA pointer or ordinal for a function thunk */
+void output_thunk_rva( int ordinal, const char *format, ... )
+{
+    if (ordinal == -1)
+    {
+        va_list valist;
+
+        va_start( valist, format );
+        switch (target.platform)
+        {
+        case PLATFORM_MINGW:
+        case PLATFORM_WINDOWS:
+            output( "\t.rva " );
+            vfprintf( output_file, format, valist );
+            fputc( '\n', output_file );
+            if (get_ptr_size() == 8) output( "\t.long 0\n" );
+            break;
+        default:
+            output( "\t%s ", get_asm_ptr_keyword() );
+            vfprintf( output_file, format, valist );
+            output( " - .L__wine_spec_rva_base\n" );
+            break;
+        }
+        va_end( valist );
+    }
+    else
+    {
+        if (get_ptr_size() == 4) output( "\t.long 0x8000%04x\n", ordinal );
+        else output( "\t.quad 0x800000000000%04x\n", ordinal );
+    }
+}
+
 /* output the GNU note for non-exec stack */
 void output_gnu_stack_note(void)
 {