Add check for the EFD_NONBLOCK and EFD_CLOEXEC flags to the
CONFIG_EVENTFD test.
This fixes the following build failure on Fedora 9:

      CC    event_notifier.o
    event_notifier.c: In function `event_notifier_init':
    event_notifier.c:21: error: `EFD_NONBLOCK' undeclared (first use in this function)
    event_notifier.c:21: error: (Each undeclared identifier is reported only once
    event_notifier.c:21: error: for each function it appears in.)
    event_notifier.c:21: error: `EFD_CLOEXEC' undeclared (first use in this function)
    make: *** [event_notifier.o] Error 1
Reviewed-by: NStefan Hajnoczi <stefanha@linux.vnet.ibm.com>
Signed-off-by: NMax Filippov <jcmvbkbc@gmail.com>
Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>

Change the default on x86 Linux hosts to building PIE (position
independent executables); instead of restricting the option to
user-only targets, apply it to all targets.

In addition, set the relocation sections to read-only (relro) when
available; this reduces the attack surface by disallowing changes to
relocation tables at runtime.

While PIE reduces performance and relro increases load time, it
greatly improves security, with the potential to reduce a code
execution vulnerability to a self denial of service.

Non-x86 are not changed, as they require TCG changes; neither are
non-Linux, due to lack of test coverage.
Signed-off-by: NAvi Kivity <avi@redhat.com>
Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>

'sed -i' is not defined in POSIX. It doesn't work on Mac OS X the way
it's used in configure (without suffix argument). This patch implements
Peter Maydell's idea of xattr.h detection.

Cc: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: NPeter Maydell <peter.maydell@linaro.org>
Signed-off-by: NPavel Borzenkov <pavel.borzenkov@gmail.com>
Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>

Signed-off-by: NChen Wen-Ren (陳韋任) <chenwj@iis.sinica.edu.tw>
Signed-off-by: NStefan Hajnoczi <stefanha@linux.vnet.ibm.com>

Modern distributions place xattr.h in /usr/include/sys, and fold
libattr.so into libc.  They also don't have an ENOATTR.

Make configure detect this, and add a qemu-xattr.h file that
directs the #include to the right place.
Signed-off-by: NAvi Kivity <avi@redhat.com>
Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>

Suppress confusing messages from pkg_config when probing for
'check' by sending them to /dev/null as we do with other
similar probes.
Signed-off-by: NPeter Maydell <peter.maydell@linaro.org>
Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>

This reverts commit f90a9d02.
Signed-off-by: NBlue Swirl <blauwirbel@gmail.com>

There is a "test-coroutine" which isn't in the list.
Add it so "make check" runs it too.
Signed-off-by: NGerd Hoffmann <kraxel@redhat.com>
Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>

Create a new CHECKS variable.  Put the checks there instead
of adding them to the TOOLS variable.
Signed-off-by: NGerd Hoffmann <kraxel@redhat.com>
Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>

Probe for libcheck and build checks (if found) by default.
Can be explicitly disabled using --disable-check-utests.
Signed-off-by: NGerd Hoffmann <kraxel@redhat.com>
Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>

Signed-off-by: NStefan Weil <sw@weilnetz.de>

According to David Gibson for some compiler/libc combinations, open_by_handle_at
test in configure isn't quite right: because the file_handle pointer is never
dereferenced, gcc doesn't complain even if it is undefined. Change the test
as suggested by him.
Signed-off-by: NAneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>

We have several targets in the PPC tree now that basically require libfdt
to function properly, namely the pseries and the e500 targets. This dependency
will rather increase than decrease in the future, so I want to make sure
that people building shiny new 1.0 actually have libfdt installed to get
rid of a few ifdefs in the code.

Warning: This patch will likely make configure fail for people who don't
select their own --target-list, but don't have libfdt development packages
installed. However, we really need this new dependency to move on.
Signed-off-by: NAlexander Graf <agraf@suse.de>

---

v1 -> v2:

  - no paranthesis
  - no fdt check for config_pseries
  - add . in error message

Some 32-bit PPC CPUs can use up to 36 bit of physical address space.
Treat them accordingly in the qemu-system-ppc binary type.
Signed-off-by: NAlexander Graf <agraf@suse.de>

This provides built-in support for iSCSI to QEMU.

This has the advantage that the iSCSI devices need not be made visible to the host, which is useful if you have very many virtual machines and very many iscsi devices.
It also has the benefit that non-root users of QEMU can access iSCSI devices across the network without requiring root privilege on the host.

This driver interfaces with the multiplatform posix library for iscsi initiator/client access to iscsi devices hosted at
    git://github.com/sahlberg/libiscsi.git

The patch adds the driver to interface with the iscsi library.
It also updated the configure script to
* by default, probe is libiscsi is available and if so, build
  qemu against libiscsi.
* --enable-libiscsi
  Force a build against libiscsi. If libiscsi is not available
  the build will fail.
* --disable-libiscsi
  Do not link against libiscsi, even if it is available.

When linked with libiscsi, qemu gains support to access iscsi resources such as disks and cdrom directly, without having to make the devices visible to the host.

You can specify devices using a iscsi url of the form :
iscsi://[<username>[:<password>@]]<host>[:<port]/<target-iqn-name>/<lun>
When using authentication, the password can optionally be set with
LIBISCSI_CHAP_PASSWORD="password" to avoid it showing up in the process list
Signed-off-by: NRonnie Sahlberg <ronniesahlberg@gmail.com>
Reviewed-by: NStefan Hajnoczi <stefanha@linux.vnet.ibm.com>
Signed-off-by: NKevin Wolf <kwolf@redhat.com>

This patch use file system specific ioctl for getting i_generation
value. Not all file system support the ioctl. So we add an export
specific extended operation and assign right callback for the
file system that support i_generation ioctl

["M. Mohan Kumar" <mohan@in.ibm.com> we can do ioctl only for
regular files and directories on the server]
Signed-off-by: NHarsh Prateek Bora <harsh@linux.vnet.ibm.com>
Signed-off-by: NAneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>

Also don't do glibc version check to find handle support. Instead
do handle syscall support in configure.
Signed-off-by: NAneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>

Signed-off-by: NRichard Henderson <rth@twiddle.net>

We only support -M pseries when certain prerequisites are met, such
as a PPC64 guest and libfdt. To only gather these requirements in
a single place, this patch introduces a new CONFIG_PSERIES variable
that gets set when all prerequisites are met.
Signed-off-by: NAlexander Graf <agraf@suse.de>

To be able to detect some ARM / HPPA based architectures such as with
OpenBSD/(armish / zaurus) or OpenBSD/hppa.
Signed-off-by: NBrad Smith <brad@comstyle.com>
Signed-off-by: NBlue Swirl <blauwirbel@gmail.com>

The code which tests whether gcc supports warn_unused_result was wrong.
Remove the wrong test from configure and replace it by code using
macro QEMU_GNUC_PREREQ in compiler.h.
Signed-off-by: NStefan Weil <weil@mail.berlios.de>
Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>

Since qapi-generated/ is a global QEMU include path, we need to make
sure it is created before anything is compiled, so do this in the
configure phase rather than via the Makefile.
Signed-off-by: NMichael Roth <mdroth@linux.vnet.ibm.com>
Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>

If pkg-config doesn't exist then make configure fail immediately
with a useful error message. Now that glib is a required dependency,
proceeding despite the missing pkg-config will just cause us to
fail later with a misleading message about glib not being present.
Signed-off-by: NPeter Maydell <peter.maydell@linaro.org>
Acked-by: NPaolo Bonzini <pbonzini@redhat.com>
Signed-off-by: NStefan Hajnoczi <stefanha@linux.vnet.ibm.com>

This reverts commit 46f08792.

This was not supposed to be applied to mainline.
Signed-off-by: NRichard Henderson <rth@twiddle.net>
Signed-off-by: NEdgar E. Iglesias <edgar.iglesias@gmail.com>

This will apply libuser-specific compilation flags (like the ones added by
--enable-user-pie), but keep softmmu emulation targets "as-is".
Signed-off-by: NLluís Vilanova <vilanova@ac.upc.edu>
Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>

Signed-off-by: NMax Filippov <jcmvbkbc@gmail.com>
Signed-off-by: NBlue Swirl <blauwirbel@gmail.com>

This patch removes redundant shell code and cleans it a little bit.

Shell macro compile_prog takes two arguments:
local_cflags and local ldflags.

$QEMU_CFLAGS is added automatically to the cflags, so there is no need
to pass it as an argument.

It is also unnecessary to pass -Werror twice.

$flag is a compiler warning option, so it should be in local_cflags
instead of local_ldflags.
Signed-off-by: NStefan Weil <weil@mail.berlios.de>
Signed-off-by: NStefan Hajnoczi <stefanha@linux.vnet.ibm.com>

Commit 12d4536f removed
configure option --enable-io-thread.

Remove help message which is now no longer valid.

Cc: Anthony Liguori <aliguori@us.ibm.com>
Signed-off-by: NStefan Weil <weil@mail.berlios.de>
Signed-off-by: NStefan Hajnoczi <stefanha@linux.vnet.ibm.com>

The QDict unit-tests (check-qdict) will fail when ran on a different
build directory. That's, it only works when ran on the source dir.

This happens because its data file (qdict-test-data.txt) is not
copied to the build dir. Fix it.
Signed-off-by: NLuiz Capitulino <lcapitulino@redhat.com>

Allow overriding the location of Samba's smbd.

Pretty much every OS I look at has some means of
changing this path (patching) so lets just make
it easier for OS developers creating packages
and/or end users to override the location.
Signed-off-by: NBrad Smith <brad@comstyle.com>
Reviewed-by: NStefan Hajnoczi <stefanha@linux.vnet.ibm.com>
Signed-off-by: NBlue Swirl <blauwirbel@gmail.com>

Fix install(1) usage to be compatible with OpenBSD's install(1).

When creating a directory via the -d flag the -p flag cannot be
used at the same time. Also in the context of installing QEMU it
doesn't make sense to use the -p flag anyway so use the [default]
-c flag instead.
Signed-off-by: NBrad Smith <brad@comstyle.com>
Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>

Enabling the I/O thread by default seems like an important part of declaring
1.0.  Besides allowing true SMP support with KVM, the I/O thread means that the
TCG VCPU doesn't have to multiplex itself with the I/O dispatch routines which
currently requires a (racey) signal based alarm system.

I know there have been concerns about performance.  I think so far the ones that
have come up (virtio-net) are most likely due to secondary reasons like
decreased batching.

I think we ought to force enabling I/O thread early in 1.0 development and
commit to resolving any lingering issues.
Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>

Reported-by: NLluis Vilanova <vilanova@ac.upc.edu>
Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>

Uses the generic interface provided in "trace/control.h" in order to provide
a programmatic interface as well as command line and monitor controls.
Signed-off-by: NFabien Chouteau <chouteau@adacore.com>
Signed-off-by: NLluís Vilanova <vilanova@ac.upc.edu>

A default implementation for backend-specific routines is provided in
"trace/default.c", which backends can override by setting "trace_default=no" in
"configure".
Signed-off-by: NLluís Vilanova <vilanova@ac.upc.edu>

Provides a more hierarchical view of the variable domain.

Also adds the CONFIG_TRACE_* variables for all backends.

[Stefan added missing 'test' in stap if statement]
Signed-off-by: NLluís Vilanova <vilanova@ac.upc.edu>
Signed-off-by: NStefan Hajnoczi <stefanha@linux.vnet.ibm.com>

Improvements to the libtool support in QEMU. Replace hard coded
libtool in the infrastructure with $(LIBTOOL) and allow
overriding the libtool binary used via the configure
script.
Reviewed-by: NAndreas F=E4rber <andreas.faerber@web.de>
Signed-off-by: NBrad Smith <brad@comstyle.com>
Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>

This patch tries to cull any uneeded library dependencies from the guest
agent to improve portability across various distros. We do so by being
as explicit as possible about in-tree dependencies rather than relying
on existing *-obj-y targets, and by manually setting LIBS for the
qemu-ga target to avoid pulling in LIBS_TOOLS libraries discovered by
configure.
Signed-off-by: NMichael Roth <mdroth@linux.vnet.ibm.com>
Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>

OpenBSD / FreeBSD and some other OS's require the use of
cc -pthread to link threaded programs so have QEMU's
configure script check for the presence of the flag
and use it if so.
Signed-off-by: NBrad Smith <brad@comstyle.com>
Signed-off-by: NBlue Swirl <blauwirbel@gmail.com>

Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>