Changeset 96325 in vbox for trunk/include

Timestamp:

Aug 19, 2022 8:50:16 AM (2 years ago)

Author:

vboxsync

Message:

include/VBox/VBoxGuest.h: Solaris build fix for a narrowing conversion
identified by gcc 12.1.0: VBGL_IOCTL_CODE_SIZE expands to _IOWRN which
casts its result to an 'int' but is passed to routines expecting a
'uintptr_t'. gcc correctly flags this via [-Wnarrowing] with an error
message like: "narrowing conversion of ‘-1072146881’ from ‘int’ to ‘long
unsigned int’".

File:

• trunk/include/VBox/VBoxGuest.h (modified) (1 diff)

trunk/include/VBox/VBoxGuest.h

@@ -126 +126 @@
   /* No automatic buffering, size limited to 255 bytes => use VBGLBIGREQ for everything. */
 # include <sys/ioccom.h>
-# define VBGL_IOCTL_CODE_SIZE(Function, Size)       _IOWRN('V', (Function), sizeof(VBGLREQHDR))
+# define VBGL_IOCTL_CODE_SIZE(Function, Size)       ((uintptr_t)(_IOWRN('V', (Function), sizeof(VBGLREQHDR))))
 # define VBGL_IOCTL_CODE_BIG(Function)              _IOWRN('V', (Function), sizeof(VBGLREQHDR))
 # define VBGL_IOCTL_CODE_FAST(Function)             _IO(   'F', (Function))