[PATCH 2/2] opengl32: Serialize debug callbacks message string.

[Rémi Bernon]

From: Rémi Bernon

---
 dlls/opengl32/make_opengl |  2 +-
 dlls/opengl32/unix_wgl.c  | 28 +++++++++++++++-------------
 dlls/opengl32/unixlib.h   |  2 +-
 3 files changed, 17 insertions(+), 15 deletions(-)

diff --git a/dlls/opengl32/make_opengl b/dlls/opengl32/make_opengl
index 7d906ae43dd..4c2b2f77167 100755
--- a/dlls/opengl32/make_opengl
+++ b/dlls/opengl32/make_opengl
@@ -1088,7 +1088,7 @@ print OUT "    UINT32 type;\n";
 print OUT "    UINT32 id;\n";
 print OUT "    UINT32 severity;\n";
 print OUT "    UINT32 length;\n";
-print OUT "    const char *message;\n";
+print OUT "    char message[1];\n";
 print OUT "};\n\n";

print OUT "#define UNIX_CALL( func, params ) WINE_UNIX_CALL( unix_ ## func, params )\n\n";
diff --git a/dlls/opengl32/unix_wgl.c b/dlls/opengl32/unix_wgl.c
index c7d380d894b..c5c584fc848 100644
--- a/dlls/opengl32/unix_wgl.c
+++ b/dlls/opengl32/unix_wgl.c
@@ -898,18 +898,11 @@ static BOOL wrap_wglSetPbufferAttribARB( HPBUFFERARB handle, const int *attribs
 static void gl_debug_message_callback( GLenum source, GLenum type, GLuint id, GLenum severity,
                                        GLsizei length, const GLchar *message, const void *user )
 {
-    struct wine_gl_debug_message_params params =
-    {
-        .source = source,
-        .type = type,
-        .id = id,
-        .severity = severity,
-        .length = length,
-        .message = message,
-    };
+    struct wine_gl_debug_message_params *params;
     void *ret_ptr;
     ULONG ret_len;
     struct wgl_handle *ptr = (struct wgl_handle *)user;
+    UINT len = strlen( message ) + 1, size;

if (!ptr->u.context->debug_callback) return;
     if (!NtCurrentTeb())
@@ -919,11 +912,20 @@ static void gl_debug_message_callback( GLenum source, GLenum type, GLuint id, GL
         return;
     }

-    params.debug_callback = ptr->u.context->debug_callback;
-    params.debug_user = ptr->u.context->debug_user;
-
-    KeUserModeCallback( NtUserCallOpenGLDebugMessageCallback, &params, sizeof(params),
+    size = offsetof(struct wine_gl_debug_message_params, message[len] );
+    if (!(params = malloc( size ))) return;
+    params->debug_callback = ptr->u.context->debug_callback;
+    params->debug_user = ptr->u.context->debug_user;
+    params->source = source;
+    params->type = type;
+    params->id = id;
+    params->severity = severity;
+    params->length = length;
+    memcpy( params->message, message, len );
+
+    KeUserModeCallback( NtUserCallOpenGLDebugMessageCallback, params, size,
                         &ret_ptr, &ret_len );
+    free( params );
 }

static void wrap_glDebugMessageCallback( TEB *teb, GLDEBUGPROC callback, const void *user )
diff --git a/dlls/opengl32/unixlib.h b/dlls/opengl32/unixlib.h
index 900932ff8ce..46b081e0b18 100644
--- a/dlls/opengl32/unixlib.h
+++ b/dlls/opengl32/unixlib.h
@@ -28386,7 +28386,7 @@ struct wine_gl_debug_message_params
     UINT32 id;
     UINT32 severity;
     UINT32 length;
-    const char *message;
+    char message[1];
 };

#define UNIX_CALL( func, params ) WINE_UNIX_CALL( unix_ ## func, params )