Commit c495a793 authored by Aleksandar Markovic's avatar Aleksandar Markovic Committed by Laurent Vivier
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linux-user: Add support for SIOCSPGRP ioctl for all targets 



Add support for setting the process (or process group) to receive SIGIO
or SIGURG signals when I/O becomes possible or urgent data is available,
using SIOCSPGRP ioctl.

The ioctl numeric values for SIOCSPGRP are platform-dependent and are
determined by following files in Linux kernel source tree:

arch/ia64/include/uapi/asm/sockios.h:#define SIOCSPGRP    0x8902
arch/mips/include/uapi/asm/sockios.h:#define SIOCSPGRP    _IOW('s', 8, pid_t)
arch/parisc/include/uapi/asm/sockios.h:#define SIOCSPGRP  0x8902
arch/sh/include/uapi/asm/sockios.h:#define SIOCSPGRP      _IOW('s', 8, pid_t)
arch/xtensa/include/uapi/asm/sockios.h:#define SIOCSPGRP  _IOW('s', 8, pid_t)
arch/alpha/include/uapi/asm/sockios.h:#define SIOCSPGRP   _IOW('s', 8, pid_t)
arch/sparc/include/uapi/asm/sockios.h:#define SIOCSPGRP   0x8902
include/uapi/asm-generic/sockios.h:#define SIOCSPGRP      0x8902

Hence the different definition for alpha, mips, sh4, and xtensa.

Signed-off-by: default avatarAleksandar Markovic <amarkovic@wavecomp.com>
Reviewed-by: default avatarMax Filippov <jcmvbkbc@gmail.com>
Reviewed-by: default avatarLaurent Vivier <laurent@vivier.eu>
Message-Id: <1558282527-22183-3-git-send-email-aleksandar.markovic@rt-rk.com>
Signed-off-by: default avatarLaurent Vivier <laurent@vivier.eu>
parent d14eabbe

linux-user/ioctls.h

+1 −0
Original line number Diff line number Diff line
@@ -218,6 +218,7 @@ 
  IOCTL(SIOCSRARP, IOC_W, MK_PTR(MK_STRUCT(STRUCT_arpreq)))

  IOCTL(SIOCGRARP, IOC_R, MK_PTR(MK_STRUCT(STRUCT_arpreq)))

  IOCTL(SIOCGIWNAME, IOC_W | IOC_R, MK_PTR(MK_STRUCT(STRUCT_char_ifreq)))

  IOCTL(SIOCSPGRP, IOC_W, MK_PTR(TYPE_INT)) /* pid_t */

  IOCTL(SIOCGPGRP, IOC_R, MK_PTR(TYPE_INT)) /* pid_t */

  IOCTL(SIOCGSTAMP, IOC_R, MK_PTR(MK_STRUCT(STRUCT_timeval)))

  IOCTL(SIOCGSTAMPNS, IOC_R, MK_PTR(MK_STRUCT(STRUCT_timespec)))

linux-user/syscall_defs.h

+3 −0
Original line number Diff line number Diff line
@@ -740,11 +740,14 @@ struct target_pollfd { 
#if defined(TARGET_ALPHA) || defined(TARGET_MIPS) || defined(TARGET_SH4) ||    \

       defined(TARGET_XTENSA)

#define TARGET_SIOCATMARK      TARGET_IOR('s', 7, int)

#define TARGET_SIOCSPGRP       TARGET_IOW('s', 8, pid_t)

#define TARGET_SIOCGPGRP       TARGET_IOR('s', 9, pid_t)

#else

#define TARGET_SIOCATMARK      0x8905

#define TARGET_SIOCSPGRP       0x8902

#define TARGET_SIOCGPGRP       0x8904

#endif



#define TARGET_SIOCGSTAMP      0x8906          /* Get stamp (timeval) */

#define TARGET_SIOCGSTAMPNS    0x8907          /* Get stamp (timespec) */