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[Qemu-commits] [qemu/qemu] e8efd8: Add support for MAP_NORESERVE mmap fl

From: GitHub
Subject: [Qemu-commits] [qemu/qemu] e8efd8: Add support for MAP_NORESERVE mmap flag.
Date: Sun, 29 Jun 2014 10:30:06 -0700 
  Branch: refs/heads/master
  Home:   https://github.com/qemu/qemu
  Commit: e8efd8e71f89b22d0a5028495cc35bd167f92e63
      
https://github.com/qemu/qemu/commit/e8efd8e71f89b22d0a5028495cc35bd167f92e63
  Author: Christophe Lyon <address@hidden>
  Date:   2014-06-29 (Sun, 29 Jun 2014)

  Changed paths:
    M linux-user/syscall.c

  Log Message:
  -----------
  Add support for MAP_NORESERVE mmap flag.

mmap_flags_tbl contains a list of mmap flags, and how to map them to
the target. This patch adds MAP_NORESERVE, which was missing to the
list.

Signed-off-by: Christophe Lyon <address@hidden>
Reviewed-by: Peter Maydell <address@hidden>
Signed-off-by: Riku Voipio <address@hidden>


  Commit: 76b94245507881a0621c5bb3b144c3c19dcbcb4d
      
https://github.com/qemu/qemu/commit/76b94245507881a0621c5bb3b144c3c19dcbcb4d
  Author: Wim Vander Schelden <address@hidden>
  Date:   2014-06-29 (Sun, 29 Jun 2014)

  Changed paths:
    M linux-user/syscall.c

  Log Message:
  -----------
  linux-user: added fake open() for /proc/self/cmdline

Signed-off-by: Wim Vander Schelden <address@hidden>
Signed-off-by: Riku Voipio <address@hidden>


  Commit: 8289d112811adfd609c1e3d855427a96418564b0
      
https://github.com/qemu/qemu/commit/8289d112811adfd609c1e3d855427a96418564b0
  Author: Paul Burton <address@hidden>
  Date:   2014-06-29 (Sun, 29 Jun 2014)

  Changed paths:
    M linux-user/syscall.c

  Log Message:
  -----------
  linux-user: translate the result of getsockopt SO_TYPE

QEMU previously passed the result of the host syscall directly to the
target program. This is a problem if the host & target have different
representations of socket types, as is the case when running a MIPS
target program on an x86 host. Introduce a host_to_target_sock_type
helper function mirroring the existing target_to_host_sock_type, and
call it to translate the value provided by getsockopt when called for
the SO_TYPE option.

Signed-off-by: Paul Burton <address@hidden>
Signed-off-by: Riku Voipio <address@hidden>


  Commit: aec1ca411e8b772823d88eb64d86478a381cb819
      
https://github.com/qemu/qemu/commit/aec1ca411e8b772823d88eb64d86478a381cb819
  Author: Paul Burton <address@hidden>
  Date:   2014-06-29 (Sun, 29 Jun 2014)

  Changed paths:
    M linux-user/syscall.c

  Log Message:
  -----------
  linux-user: support SO_ACCEPTCONN getsockopt option

Translate the SO_ACCEPTCONN option to the host value & execute the
syscall as expected.

Signed-off-by: Paul Burton <address@hidden>
Signed-off-by: Riku Voipio <address@hidden>


  Commit: d79b6cc4350a1c8debab8ae9a60ea745ea7ef036
      
https://github.com/qemu/qemu/commit/d79b6cc4350a1c8debab8ae9a60ea745ea7ef036
  Author: Paul Burton <address@hidden>
  Date:   2014-06-29 (Sun, 29 Jun 2014)

  Changed paths:
    M linux-user/syscall.c

  Log Message:
  -----------
  linux-user: support SO_{SND, RCV}BUFFORCE setsockopt options

Translate the SO_SNDBUFFORCE & SO_RCVBUFFORCE options to setsockopt to
the host values & perform the syscall as expected, allowing use of those
options by target programs.

Signed-off-by: Paul Burton <address@hidden>
Signed-off-by: Riku Voipio <address@hidden>


  Commit: 82d0fe6b7a7384ed442b6a481ab33d442a06f5f1
      
https://github.com/qemu/qemu/commit/82d0fe6b7a7384ed442b6a481ab33d442a06f5f1
  Author: Paul Burton <address@hidden>
  Date:   2014-06-29 (Sun, 29 Jun 2014)

  Changed paths:
    M linux-user/socket.h
    M linux-user/syscall.c

  Log Message:
  -----------
  linux-user: support SO_PASSSEC setsockopt option

Translate the SO_PASSSEC option to setsockopt to the host value &
perform the syscall as expected, allowing use of the option by target
programs.

Signed-off-by: Paul Burton <address@hidden>
Signed-off-by: Riku Voipio <address@hidden>


  Commit: 356d771b30071b44fcb19d2f8d911784b9b276be
      
https://github.com/qemu/qemu/commit/356d771b30071b44fcb19d2f8d911784b9b276be
  Author: Paul Burton <address@hidden>
  Date:   2014-06-29 (Sun, 29 Jun 2014)

  Changed paths:
    M linux-user/syscall.c

  Log Message:
  -----------
  linux-user: allow NULL arguments to mount

Calls to the mount syscall can legitimately provide NULL as the value
for the source of filesystemtype arguments, which QEMU would previously
reject & return -EFAULT to the target program. An example of this is
remounting an already mounted filesystem with different properties.

Instead of rejecting such syscalls with -EFAULT, pass NULL along to the
kernel as the target program expects.

Additionally this patch fixes a potential memory leak when DEBUG_REMAP
is enabled and lock_user_string fails on the target or filesystemtype
arguments but a prior argument was non-NULL and already locked.

Since the patch already touched most lines of the TARGET_NR_mount case,
it fixes the indentation & coding style for good measure.

Signed-off-by: Paul Burton <address@hidden>
Signed-off-by: Riku Voipio <address@hidden>


  Commit: 0fa82d39c8afbaaa2fb4cdbb30f36c3dc76dad8e
      
https://github.com/qemu/qemu/commit/0fa82d39c8afbaaa2fb4cdbb30f36c3dc76dad8e
  Author: Paul Burton <address@hidden>
  Date:   2014-06-29 (Sun, 29 Jun 2014)

  Changed paths:
    M linux-user/strace.list

  Log Message:
  -----------
  linux-user: support strace of epoll_create1

Add the epoll_create1 syscall to strace.list in order to display that
syscall when it occurs, rather than a message about the syscall being
unknown despite QEMU already implementing support for it.

Signed-off-by: Paul Burton <address@hidden>
Signed-off-by: Riku Voipio <address@hidden>


  Commit: fd7678324391d497b53afa40eeafe04cc05030df
      
https://github.com/qemu/qemu/commit/fd7678324391d497b53afa40eeafe04cc05030df
  Author: Paul Burton <address@hidden>
  Date:   2014-06-29 (Sun, 29 Jun 2014)

  Changed paths:
    M linux-user/syscall_defs.h

  Log Message:
  -----------
  linux-user: fix struct target_epoll_event layout for MIPS

MIPS requires the pad field to 64b-align the data field just as ARM
does.

Signed-off-by: Paul Burton <address@hidden>
Signed-off-by: Riku Voipio <address@hidden>


  Commit: ef4467e911fc8a8a58c85877152a6ef7f46ed03a
      
https://github.com/qemu/qemu/commit/ef4467e911fc8a8a58c85877152a6ef7f46ed03a
  Author: Paul Burton <address@hidden>
  Date:   2014-06-29 (Sun, 29 Jun 2014)

  Changed paths:
    M linux-user/syscall.c
    M linux-user/syscall_defs.h

  Log Message:
  -----------
  linux-user: respect timezone for settimeofday

The settimeofday syscall accepts a tz argument indicating the desired
timezone to the kernel. QEMU previously ignored any argument provided
by the target program & always passed NULL to the kernel. Instead,
translate the argument & pass along the data userland provided.

Although this argument is described by the settimeofday man page as
obsolete, it is used by systemd as of version 213.

Signed-off-by: Paul Burton <address@hidden>
Signed-off-by: Riku Voipio <address@hidden>


  Commit: b67d80311a7d081747c0f4a731e0bfd2facf1464
      
https://github.com/qemu/qemu/commit/b67d80311a7d081747c0f4a731e0bfd2facf1464
  Author: Paul Burton <address@hidden>
  Date:   2014-06-29 (Sun, 29 Jun 2014)

  Changed paths:
    M linux-user/syscall.c

  Log Message:
  -----------
  linux-user: allow NULL tv argument for settimeofday

The tv argument to the settimeofday syscall is allowed to be NULL, if
the program only wishes to provide the timezone. QEMU previously
returned -EFAULT when tv was NULL. Instead, execute the syscall &
provide NULL to the kernel as the target program expected.

Signed-off-by: Paul Burton <address@hidden>
Signed-off-by: Riku Voipio <address@hidden>


  Commit: ca56f5b59622af0101f51b0f29459f749b6cbab0
      
https://github.com/qemu/qemu/commit/ca56f5b59622af0101f51b0f29459f749b6cbab0
  Author: Paul Burton <address@hidden>
  Date:   2014-06-29 (Sun, 29 Jun 2014)

  Changed paths:
    M linux-user/ioctls.h
    M linux-user/syscall.c
    M linux-user/syscall_defs.h

  Log Message:
  -----------
  linux-user: support the KDSIGACCEPT ioctl

Add a definition of the KDSIGACCEPT ioctl & allow its use by target
programs.

Signed-off-by: Paul Burton <address@hidden>
Signed-off-by: Riku Voipio <address@hidden>


  Commit: f63eb01ac7a5b4437d5589ad4343527534bf9d0b
      
https://github.com/qemu/qemu/commit/f63eb01ac7a5b4437d5589ad4343527534bf9d0b
  Author: Paul Burton <address@hidden>
  Date:   2014-06-29 (Sun, 29 Jun 2014)

  Changed paths:
    M linux-user/ioctls.h
    M linux-user/syscall_defs.h

  Log Message:
  -----------
  linux-user: support the SIOCGIFINDEX ioctl

Add a definition of the SIOCGIFINDEX ioctl, allowing its use by target
programs.

Signed-off-by: Paul Burton <address@hidden>
Signed-off-by: Riku Voipio <address@hidden>


  Commit: 4f9c5be9191fb08d16023fb6fde1f1d802ce4b44
      
https://github.com/qemu/qemu/commit/4f9c5be9191fb08d16023fb6fde1f1d802ce4b44
  Author: Peter Maydell <address@hidden>
  Date:   2014-06-29 (Sun, 29 Jun 2014)

  Changed paths:
    M linux-user/ioctls.h
    M linux-user/socket.h
    M linux-user/strace.list
    M linux-user/syscall.c
    M linux-user/syscall_defs.h

  Log Message:
  -----------
  Merge remote-tracking branch 'remotes/riku/linux-user-for-upstream' into 
staging

* remotes/riku/linux-user-for-upstream:
  linux-user: support the SIOCGIFINDEX ioctl
  linux-user: support the KDSIGACCEPT ioctl
  linux-user: allow NULL tv argument for settimeofday
  linux-user: respect timezone for settimeofday
  linux-user: fix struct target_epoll_event layout for MIPS
  linux-user: support strace of epoll_create1
  linux-user: allow NULL arguments to mount
  linux-user: support SO_PASSSEC setsockopt option
  linux-user: support SO_{SND, RCV}BUFFORCE setsockopt options
  linux-user: support SO_ACCEPTCONN getsockopt option
  linux-user: translate the result of getsockopt SO_TYPE
  linux-user: added fake open() for /proc/self/cmdline
  Add support for MAP_NORESERVE mmap flag.

Signed-off-by: Peter Maydell <address@hidden>


Compare: https://github.com/qemu/qemu/compare/4daebe014eff...4f9c5be9191f
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