linux-user: add tee, splice and vmsplice

Add support for tee, splice and vmsplice.

Originally from: vibi sreenivasan <vibi_sreenivasan@cms.com>

Riku: squashed patches toget

linux-user: add tee, splice and vmsplice

Add support for tee, splice and vmsplice.

Originally from: vibi sreenivasan <vibi_sreenivasan@cms.com>

Riku: squashed patches together, added a test to configure
and removed compliler warning by picking up correct type for
splice param

Signed-off-by: vibisreenivasan <vibi_sreenivasan@cms.com>
Signed-off-by: Riku Voipio <riku.voipio@iki.fi>

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linux-user: implement pipe2 [v3]

implement pipe2 syscall.

[v2] fix do_pipe on mips and sh4
[v3] use pipe2 to ensure atomicity, but only when it is available.

Signed-off

linux-user: implement pipe2 [v3]

implement pipe2 syscall.

[v2] fix do_pipe on mips and sh4
[v3] use pipe2 to ensure atomicity, but only when it is available.

Signed-off-by: Riku Voipio <riku.voipio@iki.fi>

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add futex wake op

Signed-off-by: Riku Voipio <riku.voipio@iki.fi>

linux-user: support private futexes

Implemented the same way as in the kernel.

From: Martin Mohring <martin.mohring@opensuse.org>
Signed-off-by: Riku Voipio <riku.voipio@iki.fi>

linux-user: include linux/fs.h

defines FIGETBSZ FIBMAP, allowing the respective ioctl's to
be implemented.

From: Martin Mohring <martin.mohring@opensuse.org>
Signed-off-by:

linux-user: include linux/fs.h

defines FIGETBSZ FIBMAP, allowing the respective ioctl's to
be implemented.

From: Martin Mohring <martin.mohring@opensuse.org>
Signed-off-by: Riku Voipio <riku.voipio@iki.fi>

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linux-user: Added IP_(UN)BLOCK_SOURCE/IP_(ADD|DROP)_SOURCE_MEMBERSHIP flags to setsockopt

linux-user: Added IP_(UN)BLOCK_SOURCE/IP_(ADD|DROP)_SOURCE_MEMBERSHIP flags to setsockopt

S

linux-user: Added IP_(UN)BLOCK_SOURCE/IP_(ADD|DROP)_SOURCE_MEMBERSHIP flags to setsockopt

linux-user: Added IP_(UN)BLOCK_SOURCE/IP_(ADD|DROP)_SOURCE_MEMBERSHIP flags to setsockopt

Signed-off-by: Lionel Landwerlin <lionel.landwerlin@openwide.fr>
Signed-off-by: Riku Voipio <riku.voipio@iki.fi>

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linux-user: Added IP_ADD_MEMBERSHIP/IP_DROP_MEMBERSHIP flags to setsockopt

linux-user: Added IP_ADD_MEMBERSHIP/IP_DROP_MEMBERSHIP flags to setsockopt

Signed-off-by: Lionel Landwerli

linux-user: Added IP_ADD_MEMBERSHIP/IP_DROP_MEMBERSHIP flags to setsockopt

linux-user: Added IP_ADD_MEMBERSHIP/IP_DROP_MEMBERSHIP flags to setsockopt

Signed-off-by: Lionel Landwerlin <lionel.landwerlin@openwide.fr>
Signed-off-by: Riku Voipio <riku.voipio@iki.fi>

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Return EOPNOTSUPP instead of ENOSYS for *xattr* syscalls

In current code, we're sending ENOSYS to target when a syscall for the
xattrs is done. This makes applications like ls complain l

Return EOPNOTSUPP instead of ENOSYS for *xattr* syscalls

In current code, we're sending ENOSYS to target when a syscall for the
xattrs is done. This makes applications like ls complain loudly about
that and breaks scripts parsing the output. Moreover, iirc, implemented
features of filesystems are are sending EOPNOTSUPP (I've not checked so
I may be a little bit wrong on that...).
So, I'm proposing to return -EOPNOTSUPP and make ls happy

Signed-off-by: Arnaud Patard <arnaud.patard@rtp-net.org>
Signed-off-by: Riku Voipio <riku.voipio@iki.fi>

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Fix struct termios host - target translation

When converting the termios structure between host and target in
target_to_host_termios and host_to_target_termios, the c_cc[] array is
n

Fix struct termios host - target translation

When converting the termios structure between host and target in
target_to_host_termios and host_to_target_termios, the c_cc[] array is
never initialised.
Calling memset() before using it allows to run successfully "stty echo /
stty -echo" on arm-linux-user target (host being x86 and mips).

Signed-off-by: Arnaud Patard <arnaud.patard@rtp-net.org>
Signed-off-by: Riku Voipio <riku.voipio@iki.fi>

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linux-user: fix utimensat

The glibc function for utimensat glibc returns -EINVAL when the path is null
which is a different behaviour with the syscall.

path can be null because

linux-user: fix utimensat

The glibc function for utimensat glibc returns -EINVAL when the path is null
which is a different behaviour with the syscall.

path can be null because internally the glibc is using utimensat with
path null when implmenting futimens. If path is null, call futimes
instead.

don't try to copy timespec from user if is NULL.

Add configure check for older systems

Signed-off-by: Riku Voipio <riku.voipio@iki.fi>

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linux-user: strace now handles guest strings correctly [v2]

- to not to break strace with GUEST_BASE is set:
- Strace now can load and print guest strings correctly.
- Added printing

linux-user: strace now handles guest strings correctly [v2]

- to not to break strace with GUEST_BASE is set:
- Strace now can load and print guest strings correctly.
- Added printing support for commonly used flags in some syscalls
(e.g open, creat, mmap etc.)

v2:
- fix strace.c build on etch
- add futex print to strace

Signed-off-by: Mika Westerberg <mika.westerberg@iki.fi>
Signed-off-by: Riku Voipio <riku.voipio@iki.fi>

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linux-user: implemented ELF coredump support for ARM target

When target process is killed with signal (such signal that
should dump core) a coredump file is created. This file is
si

linux-user: implemented ELF coredump support for ARM target

When target process is killed with signal (such signal that
should dump core) a coredump file is created. This file is
similar than coredump generated by Linux (there are few exceptions
though).

Riku Voipio: added support for rlimit

Signed-off-by: Mika Westerberg <mika.westerberg@iki.fi>
Signed-off-by: Riku Voipio <riku.voipio@iki.fi>

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Implement shm* syscalls and fix 64/32bit errors

No regressions were observed on either 64bit or 32bit
IA hosts.

Patch based on original patches by:
Kirill A. Shutemov <kir

Implement shm* syscalls and fix 64/32bit errors

No regressions were observed on either 64bit or 32bit
IA hosts.

Patch based on original patches by:
Kirill A. Shutemov <kirill@shutemov.name>
- Implement shm* syscalls
- Fix and cleanup IPCOP_shm* ipc calls handling

Depends on "export mmap_find_vma for shmat" patch.

Various whitespace uglifications applied to minimize
patch size.

Signed-off-by: Riku Voipio <riku.voipio@iki.fi>

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fix gdbstub support for multiple threads in usermode, v3

When debugging multi-threaded programs, QEMU's gdb stub would report the
correct number of threads (the qfThreadInfo and qsThread

fix gdbstub support for multiple threads in usermode, v3

When debugging multi-threaded programs, QEMU's gdb stub would report the
correct number of threads (the qfThreadInfo and qsThreadInfo packets).
However, the stub was unable to actually switch between threads (the T
packet), since it would report every thread except the first as being
dead. Furthermore, the stub relied upon cpu_index as a reliable means
of assigning IDs to the threads. This was a bad idea; if you have this
sequence of events:

initial thread created
new thread #1
new thread #2
thread #1 exits
new thread #3

thread #3 will have the same cpu_index as thread #1, which would confuse
GDB. (This problem is partly due to the remote protocol not having a
good way to send thread creation/destruction events.)

We fix this by using the host thread ID for the identifier passed to GDB
when debugging a multi-threaded userspace program. The thread ID might
wrap, but the same sort of problems with wrapping thread IDs would come
up with debugging programs natively, so this doesn't represent a
problem.

Signed-off-by: Nathan Froyd <froydnj@codesourcery.com>

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microblaze: linux-user support.

Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>

Only define __llseek if it is going to be used

Signed-off-by: Paul Brook <paul@codesourcery.com>

Replace gcc variadic macro extension with C99 version

Signed-off-by: Blue Swirl <blauwirbel@gmail.com>

linux-user: Linux kernel's fchmodat and faccessat have three args (no 4th arg)

In Linux kernel, fchmodat() and faccessat() take tree args.
4th value <int flags> is only processed by libc

linux-user: Linux kernel's fchmodat and faccessat have three args (no 4th arg)

In Linux kernel, fchmodat() and faccessat() take tree args.
4th value <int flags> is only processed by libc.

Signed-off-by: Takashi YOSHII <takasi-y@ops.dti.ne.jp>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@7187 c046a42c-6fe2-441c-8c8c-71466251a162

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linux-user: fix IPCOP_sem* and implement sem*

Fix and cleanup IPCOP_sem* ipc calls handling and
implement sem* syscalls.

Riku:

1) Uglify whitespace so that diff gets sm

linux-user: fix IPCOP_sem* and implement sem*

Fix and cleanup IPCOP_sem* ipc calls handling and
implement sem* syscalls.

Riku:

1) Uglify whitespace so that diff gets smaller and easier
to review

2) use __get_user in target_to_host_sembuf

Signed-off-by: Kirill A. Shutemov <kirill@shutemov.name>
Signed-off-by: Riku Voipio <riku.voipio@iki.fi>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@7184 c046a42c-6fe2-441c-8c8c-71466251a162

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linux-user: fix inotify syscalls

Configure test was broken, so the breakage of the #ifdef'd
code was not noticed.

Signed-off-by: Riku Voipio <riku.voipio@iki.fi>
Signed-off-

linux-user: fix inotify syscalls

Configure test was broken, so the breakage of the #ifdef'd
code was not noticed.

Signed-off-by: Riku Voipio <riku.voipio@iki.fi>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@7134 c046a42c-6fe2-441c-8c8c-71466251a162

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Translate signal values in exit status.

Signed-off-by: Paul Brook <paul@codesourcery.com>


git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@7131 c046a42c-6fe2-441c-8c8c-7146

Translate signal values in exit status.

Signed-off-by: Paul Brook <paul@codesourcery.com>


git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@7131 c046a42c-6fe2-441c-8c8c-71466251a162

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linux-user: fix getcwd syscall

The patch called "prefer glibc over direct syscalls" (commit 7118) has
replaced the getcwd syscall with a call to the glibc. With this change,
the sysc

linux-user: fix getcwd syscall

The patch called "prefer glibc over direct syscalls" (commit 7118) has
replaced the getcwd syscall with a call to the glibc. With this change,
the syscall is returning -1 in error case and 0 otherwise.
This is problematic as the sys_getcwd syscall should return the number
of bytes written to the buffer including the '\0'.

Signed-off-by: Arnaud Patard <arnaud.patard@rtp-net.org>
Acked-By: Riku Voipio <riku.voipio@iki.fi>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@7130 c046a42c-6fe2-441c-8c8c-71466251a162

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linux-user: fix warnings introduced by r7118

Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@7120 c046a42c-6fe2-441c-8c8c-7

linux-user: fix warnings introduced by r7118

Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@7120 c046a42c-6fe2-441c-8c8c-71466251a162

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linux-user: prefer glibc over direct syscalls

The openat/*at syscalls are incredibly common with modern coreutils,
calling them directly via syscalls breaks for example fakeroot. Use

linux-user: prefer glibc over direct syscalls

The openat/*at syscalls are incredibly common with modern coreutils,
calling them directly via syscalls breaks for example fakeroot. Use
glibc stubs whenever directly available and provide old syscall
calling for people still using older libc.

Patch originally from Mika Westerberg, Adapted to
apply to current trunk and cleaned up by Riku Voipio.

Signed-off-by: Riku Voipio <riku.voipio@iki.fi>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@7118 c046a42c-6fe2-441c-8c8c-71466251a162

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linux-user: removed unnecessary MAX_SOCK_ADDR checks for socket syscalls

- This check is not needed because kernel will check whether given
buffer is too small and there is no upper li

linux-user: removed unnecessary MAX_SOCK_ADDR checks for socket syscalls

- This check is not needed because kernel will check whether given
buffer is too small and there is no upper limit for size of the buffer.

From: Mika Westerberg <mika.westerberg@iki.fi>

Signed-off-by: Riku Voipio <riku.voipio@iki.fi>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@7117 c046a42c-6fe2-441c-8c8c-71466251a162

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