Commit Graph

960 Commits

Author SHA1 Message Date
Timothy E Baldwin 4d330cee37 linux-user: Provide safe_syscall for fixing races between signals and syscalls
If a signal is delivered immediately before a blocking system call the
handler will only be called after the system call returns, which may be a
long time later or never.

This is fixed by using a function (safe_syscall) that checks if a guest
signal is pending prior to making a system call, and if so does not call the
system call and returns -TARGET_ERESTARTSYS. If a signal is received between
the check and the system call host_signal_handler() rewinds execution to
before the check. This rewinding has the effect of closing the race window
so that safe_syscall will reliably either (a) go into the host syscall
with no unprocessed guest signals pending or or (b) return
-TARGET_ERESTARTSYS so that the caller can deal with the signals.
Implementing this requires a per-host-architecture assembly language
fragment.

This will also resolve the mishandling of the SA_RESTART flag where
we would restart a host system call and not call the guest signal handler
until the syscall finally completed -- syscall restarting now always
happens at the guest syscall level so the guest signal handler will run.
(The host syscall will never be restarted because if the host kernel
rewinds the PC to point at the syscall insn for a restart then our
host_signal_handler() will see this and arrange the guest PC rewind.)

This commit contains the infrastructure for implementing safe_syscall
and the assembly language fragment for x86-64, but does not change any
syscalls to use it.

Signed-off-by: Timothy Edward Baldwin <T.E.Baldwin99@members.leeds.ac.uk>
Message-id: 1441497448-32489-14-git-send-email-T.E.Baldwin99@members.leeds.ac.uk
[PMM:
 * Avoid having an architecture if-ladder in configure by putting
   linux-user/host/$(ARCH) on the include path and including
   safe-syscall.inc.S from it
 * Avoid ifdef ladder in signal.c by creating new hostdep.h to hold
   host-architecture-specific things
 * Added copyright/license header to safe-syscall.inc.S
 * Rewrote commit message
 * Added comments to safe-syscall.inc.S
 * Changed calling convention of safe_syscall() to match syscall()
   (returns -1 and host error in errno on failure)
 * Added a long comment in qemu.h about how to use safe_syscall()
   to implement guest syscalls.
]
RV: squashed Peters "fixup! linux-user: compile on non-x86-64 hosts"
patch
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2016-05-27 14:49:51 +03:00
Daniel P. Berrange 666a3af9c8 io: add abstract QIOChannel classes
Start the new generic I/O channel framework by defining a
QIOChannel abstract base class. This is designed to feel
similar to GLib's GIOChannel, but with the addition of
support for using iovecs, qemu error reporting, file
descriptor passing, coroutine integration and use of
the QOM framework for easier sub-classing.

The intention is that anywhere in QEMU that almost
anywhere that deals with sockets will use this new I/O
infrastructure, so that it becomes trivial to then layer
in support for TLS encryption. This will at least include
the VNC server, char device backend and migration code.

Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
2015-12-18 12:18:05 +00:00
Peter Maydell 1c9f03b81c * Linux header update and cleanup
* Support for HyperV crash report
 * Cleanup of target-specific HMP commands
 * Multiarch batch
 * Checkpatch fix for Perl 5.22
 * NBD fix
 * Revert incorrect commit 5243722376
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Merge remote-tracking branch 'remotes/bonzini/tags/for-upstream' into staging

* Linux header update and cleanup
* Support for HyperV crash report
* Cleanup of target-specific HMP commands
* Multiarch batch
* Checkpatch fix for Perl 5.22
* NBD fix
* Revert incorrect commit 5243722376

# gpg: Signature made Wed 16 Sep 2015 16:39:01 BST using RSA key ID 78C7AE83
# gpg: Good signature from "Paolo Bonzini <bonzini@gnu.org>"
# gpg:                 aka "Paolo Bonzini <pbonzini@redhat.com>"

* remotes/bonzini/tags/for-upstream: (24 commits)
  nbd: release exp->blk after all clients are closed
  checkpatch: Escape left braces in regex
  monitor: uninclude cpu_ldst
  include/exec: Move cputlb exec.c defs out
  cputlb: Change tlb_set_dirty() arg to cpu
  cputlb: move CPU_LOOP() for tlb_reset() to exec.c
  translate: move real_host_page setting to -common
  tcg: Move tci_tb_ptr to -common
  tcg: split tcg_op_defs to -common
  translate-all: Move tcg_handle_interrupt() to -common
  cpu-exec: Migrate some generic fns to cpu-exec-common
  qemu-char: Use g_new() & friends where that makes obvious sense
  monitor: added generation of documentation for hmp-commands-info.hx
  hmp-commands.hx: fix end of table info
  monitor: remove target-specific code from monitor.c
  hmp-commands-info: move info_cmds content out of monitor.c
  i386/kvm: Hyper-v crash msrs set/get'ers and migration
  kvm: Add kvm system event crash handler
  cpu: Add crash_occurred flag into CPUState
  target-i386: move asm-x86/hyperv.h to standard-headers
  ...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2015-09-16 18:06:54 +01:00
Peter Crosthwaite 7d8f787d9d tcg: split tcg_op_defs to -common
tcg_op_defs (and the _max) are both needed by the TCI disassembler. For
multi-arch, tcg.c will be multiple-compiled (arch-obj) with its symbols
hidden from common code. So split the definition off to new file,
tcg-common.c which will remain a regular obj-y for use by both the TCI
disas as well as the multiple tcg.c's.

Cc: Stefan Weil <sw@weilnetz.de>
Signed-off-by: Peter Crosthwaite <crosthwaite.peter@gmail.com>
Message-Id: <4b607425886d85aee65878e4935dfad46b3e6085.1441614289.git.crosthwaite.peter@gmail.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2015-09-16 17:33:33 +02:00
Peter Crosthwaite 9b68a7754a translate-all: Move tcg_handle_interrupt() to -common
Move this function to common code. It has no arch specific
dependencies. Prepares support for multi-arch where the translate-all
interface needs to be virtualised. One less thing to virtualise.

Reviewed-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Peter Crosthwaite <crosthwaite.peter@gmail.com>
Message-Id: <44a7c73604ed2552af47ed02b047b6a772b683e0.1441614289.git.crosthwaite.peter@gmail.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2015-09-16 17:33:33 +02:00
Peter Crosthwaite 5abf9495ca cpu-exec: Migrate some generic fns to cpu-exec-common
The goal is to split the functions such that cpu-exec is CPU specific
content, while cpus-exec-common.c is generic code only. The function
interface to cpu-exec needs to be virtualised to prepare support for
multi-arch and moving these definitions out saves bloating the QOM
interface. So move these definitions out of cpu-exec to a new module,
cpu-exec-common.

Signed-off-by: Peter Crosthwaite <crosthwaite.peter@gmail.com>
Message-Id: <3cefeb3fbbb33031670951a0e74de2778529da3f.1441614289.git.crosthwaite.peter@gmail.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2015-09-16 17:33:33 +02:00
Pavel Butsykin da76ee76f7 hmp-commands-info: move info_cmds content out of monitor.c
For moving target- and device-specific code  from monitor.c,
to beginning we move info_cmds content to hmp-commands-info.hx

Signed-off-by: Pavel Butsykin <pbutsykin@virtuozzo.com>
Signed-off-by: Denis V. Lunev <den@openvz.org>
CC: Paolo Bonzini <pbonzini@redhat.com>
CC: Peter Maydell <peter.maydell@linaro.org>
Message-Id: <1441899541-1856-2-git-send-email-den@openvz.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2015-09-16 17:33:32 +02:00
Daniel P. Berrange 0c7012e055 qom: allow QOM to be linked into tools binaries
The qom objects are currently added to common-obj-y
which is only linked into the system emulators. The
later crypto patches will depend on QOM infrastructure
and will also be used from tools binaries. Thus the QOM
objects are moved into a new qom-obj-y variable which
can be referenced when linking tools, system emulators
and tests.

Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
2015-09-15 14:35:39 +01:00
Daniel P. Berrange fb37726db7 crypto: move crypto objects out of libqemuutil.la
Future patches will be adding more crypto related APIs which
rely on QOM infrastructure. This creates a problem, because
QOM relies on library constructors to register objects. When
you have a file in a static .a library though which is only
referenced by a constructor the linker is dumb and will drop
that file when linking to the final executable :-( The only
workaround for this is to link the .a library to the executable
using the -Wl,--whole-archive flag, but this creates its own
set of problems because QEMU is relying on lazy linking for
libqemuutil.a. Using --whole-archive majorly increases the
size of final executables as they now contain a bunch of
object code they don't actually use.

The least bad option is to thus not include the crypto objects
in libqemuutil.la, and instead define a crypto-obj-y variable
that is referenced directly by all the executables that need
this code (tools + softmmu, but not qemu-ga). We avoid pulling
entire of crypto-obj-y into the userspace emulators as that
would force them to link to gnutls too, which is not required.

Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
2015-09-15 14:18:18 +01:00
Michael Marineau 12a1ddc160 Makefile.target: include top level build dir in vpath
Using ccache with CCACHE_BASEDIR set to $(SRC_PATH) or a parent will
rewrite all absolute paths to relative paths. This interacts poorly with
QEMU's two-level build directory scheme. For example, lets say
BUILD_DIR=$(SRC_PATH)/build so build/blockdev.d will contain:

  blockdev.o: ../blockdev.c ../include/sysemu/block-backend.h \

Now the target build under build/x86_64-softmmu or similar will depend
on ../blockdev.o which in turn will get make to source ../blockdev.d to
check its dependencies. Since make always considers paths relative to
the current working directory rather than the makefile the path appeared
in the relative path to ../blockdev.c is useless.

This change simply adds the top level build directory to vpath so paths
relative to the source directory, top build directory, and target build
directory all work just fine.

Signed-off-by: Michael Marineau <michael.marineau@coreos.com>
Message-Id: <1439103775-11836-1-git-send-email-michael.marineau@coreos.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2015-09-09 15:34:54 +02:00
Juan Quintela c3049a56d6 migration: move savevm.c inside migration/
Now, everything is in place.

Signed-off-by: Juan Quintela <quintela@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
2015-06-12 06:42:30 +02:00
Juan Quintela 56e93d26b8 migration: move ram stuff to migration/ram
For historic reasons, ram migration have been on arch_init.c.  Just
split it into migration/ram.c, the same that happened with block.c.

There is only code movement, no changes altogether.

Signed-off-by: Juan Quintela <quintela@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
2015-06-12 06:40:59 +02:00
Peter Crosthwaite 6b4ad3b28d Makefile.target: set master BUILD_DIR
make can be invoked in the individual build dirs to build an individual
target or just a single file of a target. e.g.

touch translate-all.c
make -C microblazeel-softmmu translate-all.o

There is however a small bug when using the pixman submodule.
config-host.mak will ref BUILD_DIR for the pixman -I CFLAGS:

grep BUILD_DIR config-host.mak
QEMU_CFLAGS=-I$(SRC_PATH)/pixman/pixman -I$(BUILD_DIR)/pixman/pixman ...

This causes a build failure as -I/pixman/pixman (BUILD_DIR=="") will
not be found.

BUILD_DIR is usually set by the top level Makefile. Just lazy-set it in
Makefile.target to the parent directory.

Granted, this will not work if the pixman submodule is not prebuilt,
but it at least means you can do incremental partial builds once you
have done your initial full build (or attempt) from the top level.

The next step would be refactor make infrastructure to rebuild pixman
on a submake like the one above.

Cc: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Peter Crosthwaite <crosthwaite.peter@gmail.com>
Message-Id: <1432618686-16077-1-git-send-email-crosthwaite.peter@gmail.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2015-06-05 17:09:58 +02:00
Peter Crosthwaite 7df057bac3 device-tree: Make a common-obj
There is no reason for device tree API to be built per-target.
common-obj it. There is an extraneous inclusion of config.h that
needs to be removed.

Cc: Alexander Graf <agraf@suse.de>
Reviewed-by: Andreas Färber <afaerber@suse.de>
Signed-off-by: Peter Crosthwaite <crosthwaite.peter@gmail.com>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
2015-06-03 14:21:24 +03:00
Programmingkid 4e34017c21 Makefile.target: set icon for binary file on Mac OS X
Implements setting the icon for the binary file in Mac OS X.

Signed-off-by: John Arbuckle <programmingkidx@gmail.com>
[PMM: tweaked makefile to use $@ and quiet-command]
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2015-05-19 09:11:17 +01:00
Wei Liu 7398dfc779 Makefile.target: prepend $libs_softmmu to $LIBS
I discovered a problem when trying to build QEMU statically with gcc.
libm is an element of LIBS while libpixman-1 is an element in
libs_softmmu. Libpixman references functions in libm, so the original
ordering makes linking fail.

This fix is to reorder $libs_softmmu and $LIBS to make -lm appear after
-lpixman-1. However I'm not quite sure if this is the right fix, hence
the RFC tag.

Normally QEMU is built with c++ compiler which happens to link in libm
(at least this is the case with g++), so building QEMU statically
normally just works and nobody notices this issue.

Signed-off-by: Wei Liu <wei.liu2@citrix.com>
Message-Id: <1425912873-21215-1-git-send-email-wei.liu2@citrix.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2015-04-28 22:14:14 +02:00
Michael S. Tsirkin a9ad5e1efc Makefile.target: binary depends on config-devices
relink binary whenever config-devices.mak changes:
this makes sense as we are adding/removing devices,
so binary has to be relinked to be up to date.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Message-Id: <1424332114-13440-2-git-send-email-mst@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2015-02-27 19:42:45 +01:00
Richard Henderson 951c6300f7 tcg: Move some opcode generation functions out of line
Some of these functions are really quite large.  We have a number of
things that ought to be circularly dependent, but we duplicated code
to break that chain for the inlines.

This saved 25% of the code size of one of the translators I examined.

Reviewed-by: Bastian Koppelmann <kbastian@mail.uni-paderborn.de>
Signed-off-by: Richard Henderson <rth@twiddle.net>
2015-02-12 21:21:38 -08:00
Gonglei bc74112f7e bootdevice: move bootdevice related code to new file bootdevice.c
Signed-off-by: Gonglei <arei.gonglei@huawei.com>
Reviewed-by: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2014-10-15 09:49:48 +02:00
Lluís Vilanova 341ea69185 trace: [tcg] Define TCG tracing helper routines
Generates file "trace/generated-helpers.c" with TCG helper definitions to trace
events in guest code at execution time.

The helpers ('helper_trace_${event}_exec_proxy') cast the TCG-compatible native
argument types to their original types (as defined in "trace-events") and call
the tracing routine ('trace_${event}_exec').

Signed-off-by: Lluís Vilanova <vilanova@ac.upc.edu>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2014-08-12 14:26:12 +01:00
Stefan Hajnoczi e0b2fd0efb trace: install simpletrace SystemTap tapset
The simpletrace SystemTap tapset outputs simpletrace binary traces for
SystemTap probes.  This is useful because SystemTap has no default way
to format or store traces.  The simpletrace SystemTap tapset provides an
easy way to store traces.

The simpletrace.py tool or custom Python scripts using the
simpletrace.py API can analyze SystemTap these traces:

  $ ./configure --enable-trace-backends=dtrace ...
  $ make && make install
  $ stap -e 'probe qemu.system.x86_64.simpletrace.* {}' \
         -c qemu-system-x86_64 >/tmp/trace.out
  $ scripts/simpletrace.py --no-header trace-events /tmp/trace.out
  g_malloc 4.531 pid=15519 size=0xb ptr=0x7f8639c10470
  g_malloc 3.264 pid=15519 size=0x300 ptr=0x7f8639c10490
  g_free 5.155 pid=15519 ptr=0x7f8639c0f7b0

Note that, unlike qemu-system-x86_64.stp and
qemu-system-x86_64.stp-installed, only one file is needed since the
simpletrace SystemTap tapset does not reference the QEMU binary by path.
Therefore it doesn't matter whether the QEMU binary is installed or not.

Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2014-08-12 14:26:11 +01:00
Alexey Kardashevskiy f80ea9862f configure: Fix -lm test, so that tools can be compiled on hosts that require -lm
The existing test whether "-lm" needs to be included or not is
insufficient as it reports false negative on Fedora20/ppc64.
This happens because sin(0.0) is a constant value which compiler
can safely throw away and therefore there is no need to add "-lm".
As the result, qemu-nbd/qemu-io/qemu-img tools cannot compile.

This adds a global variable and uses it in the test to prevent
from optimization.

Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
[Use Peter's improvement on the test to fool LTO, and remove the
 now useless -lm addition in Makefile.target. - Paolo]
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2014-07-01 10:36:28 +02:00
Michael Tokarev 0d65942611 build-sys: introduce install-prog macro to install&strip binaries and use it
Use common rule (macro) to install and strip binaries, and use
it in all places where we install binaries, instead of fixing
bugs like 1319493 in every place.
(This fixes https://bugs.launchpad.net/bugs/1319493)

Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
2014-06-24 20:01:24 +04:00
Wanlong Gao 96d0e26c23 NUMA: move numa related code to new file numa.c
Signed-off-by: Wanlong Gao <gaowanlong@cn.fujitsu.com>
Reviewed-by: Eduardo Habkost <ehabkost@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Hu Tao <hutao@cn.fujitsu.com>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
Signed-off-by: Andre Przywara <andre.przywara@amd.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>

MST: comment tweaks
2014-06-19 18:44:18 +03:00
Tom Musta e58f8d1ff9 target-ppc: Enable Building of libdecnumber
Enable compilation of the newly added libdecnumber library code.
Object file targets are added to Makefile.target using a newly
introduced flag CONFIG_LIBDECNUMBER.  The flag is added
to the PowerPC targets (ppc[64]-linux-user, ppc[64]-softmmu).

Signed-off-by: Tom Musta <tommusta@gmail.com>
[agraf: add ppcemb and ppc64abi32 config]
Signed-off-by: Alexander Graf <agraf@suse.de>
2014-06-16 13:24:29 +02:00
Stacey Son adfc3e91e2 bsd-user: add HOST_VARIANT_DIR for various *BSD dependent code
This change adds HOST_VARIANT_DIR so the various BSD OS dependent
code can be separated into its own directories rather than
using #ifdef's.

This may also allow an BSD variant OS to host another BSD variant's
executable as a target.

Signed-off-by: Sean Bruno <sbruno@freebsd.org>
Message-id: 1402246651-71099-2-git-send-email-sbruno@freebsd.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-06-11 00:25:06 +01:00
Lluís Vilanova 5b808275f3 trace: Multi-backend tracing
Adds support to compile QEMU with multiple tracing backends at the same time.

For example, you can compile QEMU with:

  $ ./configure --enable-trace-backends=ftrace,dtrace

Where 'ftrace' can be handy for having an in-flight record of events, and 'dtrace' can be later used to extract more information from the system.

This patch allows having both available without recompiling QEMU.

Signed-off-by: Lluís Vilanova <vilanova@ac.upc.edu>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2014-06-09 15:43:40 +02:00
Michael Tokarev 8f98aeb9c0 Makefile.target: use $(INSTALL_PROG) for installing, not $(INSTALL)
$(INSTALL_PROG) is evaluated to libtool if using libtool, while
$(INSTALL) is not.  Use $(INSTALL_PROG) so that libtool is used
with target too when necessary.  This allows, for example, to
link qemu with shared libcacard.

Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
Cc: Fam Zheng <famz@redhat.com>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Alon Levy <alevy@redhat.com>
Cc: qemu-trivial@nongnu.org
--
This is done on top of previous patch (using $(STRIP)), but it can
be used by its own.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2014-05-08 15:09:04 +02:00
Michael Tokarev 2115182f0c Makefile: strip tools and modules too
Commit 52ba784d3 replaced $(STRIP_OPT) with $(STRIP) in some
places (for example, Makefile.target), but not all of them.
There are a few places remain in main Makefile which still
uses $(STRIP_OPT).  Replace these places with $(STRIP) too.

While at it, simplify variable pattern substitution of the
surrounding places, change $(patsubst pat,rep,$(var)) into
$(var:pat=rep) which is much easier to read (this is probably
a good idea to do everywhere).

Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
Cc: Fam Zheng <famz@redhat.com>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2014-05-08 15:09:04 +02:00
Paolo Bonzini d608cc5c53 build: simplify Makefile.target around unnest-vars invocations
No need to save/restore obj-y, we can just build all-obj-y incrementally.

Reviewed-by: Fam Zheng <famz@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2014-05-08 15:09:04 +02:00
Michael Tokarev 5c40c7395d build: simplify Makefile.target a bit, use just one rule for softmmu
On win*, we build QEMU_PROGW (GUI) and create a console app QEMU_PROG
from it, while on non-win*, we make only QEMU_PROG using the same
rules as used for QEMU_PROGW on win*.  Make just one rule for building
main executable, and an additional rule for win* to make console app
from it.  Also consolidate tests for $(QEMU_PROGW).

Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
[Fix user-mode compilation. - Paolo]
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2014-05-08 15:09:04 +02:00
Wei Liu 04b0de0ee8 xen: factor out common functions
So common functions used by both HVM and PV are factored out from
xen-all.c to xen-common.c.

Finally rename xen-all.c to xen-hvm.c, as those functions are only
useful to HVM guest.

Create *-stub files and modify Makefile.target to reflect the changes.

Signed-off-by: Wei Liu <wei.liu2@citrix.com>
Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
2014-05-07 16:16:43 +00:00
Paolo Bonzini f966f9ddd1 build: softmmu targets do not have a "main.o" file
Thus this rule is useless.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2014-02-20 13:14:18 +01:00
Fam Zheng cc47569881 Makefile: introduce common-obj-m and block-obj-m for DSO
$(common-obj-m) will include $(block-obj-m), like $(common-obj-y) does
for $(block-obj-y).

Signed-off-by: Fam Zheng <famz@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2014-02-20 13:14:18 +01:00
Fam Zheng ba1183da9a rules.mak: fix $(obj) to a real relative path
Makefile.target includes rule.mak and unnested common-obj-y, then prefix
them with '../', this will ignore object specific QEMU_CFLAGS in subdir
Makefile.objs:

    $(obj)/curl.o: QEMU_CFLAGS += $(CURL_CFLAGS)

Because $(obj) here is './block', instead of '../block'. This doesn't
hurt compiling because we basically build all .o from top Makefile,
before entering Makefile.target, but it will affact arriving per-object
libs support.

The starting point of $(obj) is passed in as argument of unnest-vars, as
well as nested variables, so that different Makefiles can pass in a
right value.

Signed-off-by: Fam Zheng <famz@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2014-02-20 13:12:54 +01:00
Ákos Kovács b77abd95a9 default-configs/: CONFIG_GDBSTUB_XML removed
Makefile.target: Build gdbstub-xml.o only when
TARGET_XML_FILES is not empty.

Signed-off-by: Ákos Kovács <akoskovacs@gmx.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2013-10-16 18:21:01 +02:00
Ákos Kovács cf01ba9eef Makefile.target: CONFIG_NO_* variables removed
CONFIG_NO_* variables replaced with the lnot logical function

Signed-off-by: Ákos Kovács <akoskovacs@gmx.com>
[PMM: fixed a few CONFIG_NO_* uses that were missed]
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2013-10-16 18:21:00 +02:00
Paolo Bonzini b9a7b74f77 build: do not use TARGET_ARCH
TARGET_ARCH is generally wrong to use, there are better variables
provided in config-target.mak.  The right one is usually TARGET_NAME
(previously TARGET_ARCH2), but for bsd-user we can also use TARGET_ABI_DIR
for consistency with linux-user.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Message-id: 1370349928-20419-4-git-send-email-pbonzini@redhat.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2013-06-14 15:33:10 +01:00
Paolo Bonzini c1799a8462 build: rename TARGET_ARCH2 to TARGET_NAME
Do not introduce any new use yet.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Message-id: 1370349928-20419-3-git-send-email-pbonzini@redhat.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2013-06-14 15:33:10 +01:00
Alon Levy c14518e942 Add a stp file for usage from build directory
For systemtap the location of the process being tapped is crucial, as a
result the existing stp file requires installation for use.

There are now two files:
$(TARGET_DIR)/$(QEMU_PROG).stp-installed: copied to $(tapdir)/$(QEMU_PROG).stp
$(TARGET_DIR)/$(QEMU_PROG).stp: pointing to the built binary, usable
                                without installation

To use:
stap -I $(TARGET_DIR) ...

Signed-off-by: Alon Levy <alevy@redhat.com>
Acked-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Message-id: 1370349928-20419-2-git-send-email-pbonzini@redhat.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2013-06-14 15:19:07 +01:00
Andreas Färber 2a78636bd2 dump: Drop qmp_dump_guest_memory() stub and build for all targets
qmp_dump_guest_memory() calls dump_init() and returns an Error when
cpu_get_dump_info() returns an error, as done by the stub.
So there is no need to have a stub for qmp_dump_guest_memory().

Enable the documentation of the always-present dump-guest-memory command.

That way we can drop CONFIG_HAVE_CORE_DUMP and leave configure
completely out of the picture for target CPU features.

Signed-off-by: Andreas Färber <afaerber@suse.de>
2013-06-11 18:16:36 +02:00
Andreas Färber c22d8e0448 memory_mapping: Drop qemu_get_memory_mapping() stub
dump.c:dump_init() never checked for the return code anyway.
If paging is not enabled, it will fall back to an identity map.
If paging is enabled and getting memory mapping list is not
implemented, qemu_get_guest_memory_mapping() will return an error.

Since the targets not implementing memory mapping also don't implement
dump support, we will not reach this code today and can worry about
changing cpu_paging_enabled() default when the need arises.

This allows us to drop CONFIG_HAVE_GET_MEMORY_SUPPORT.

Signed-off-by: Andreas Färber <afaerber@suse.de>
2013-06-11 18:10:44 +02:00
Andreas Färber 88f62c2b1d dump: Move stubs into libqemustub.a
This allows us to drop CONFIG_NO_CORE_DUMP with its indirect dependency
on CONFIG_HAVE_CORE_DUMP.

Acked-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>
2013-06-10 23:33:18 +02:00
Igor Mammedov c4cfef5e8a cpu: Make kvm-stub.o available outside softmmu
It will provide stubs for *-user targets once softmmu-specific calls
are attempted from common CPU code.

Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Eduardo Habkost <ehabkost@redhat.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>
2013-05-01 13:04:17 +02:00
Paolo Bonzini c12915e638 win32: generate console executable again
The -mwindows option is not anymore in LIBS at this point of the Makefile,
it is only in libs_softmmu.  Check the right variable.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2013-04-27 00:28:35 +02:00
Paolo Bonzini f3aa844bbb build: include config-{, all-}devices.mak after defining CONFIG_SOFTMMU and CONFIG_USER_ONLY
Moving the inclusions closer to Makefile, and before rules.mak, makes
Makefile and Makefile.target more consistent with each other.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Tested-by: Markus Armbruster <armbru@redhat.com>
Message-id: 1366102238-12374-1-git-send-email-pbonzini@redhat.com
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2013-04-24 12:18:41 -05:00
Paolo Bonzini f544a488e5 configure: move common libraries to config-host.mak
Move -lm to the end of the line, so that it can be picked up as a
dependency by pixman in the static build case.

Reviewed-by: Peter Maydell <peter.maydell@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
2013-04-18 14:12:31 +02:00
Paolo Bonzini 320ba5fe49 build: always link device_tree.o into emulators if libfdt available
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2013-03-01 15:01:19 +01:00
Andreas Färber 872536bf5d qtest: Add MMIO support
Introduce [qtest_]{read,write}[bwlq]() libqtest functions and
corresponding QTest protocol commands to replace local versions in
libi2c-omap.c.

Also convert m48t59-test's cmos_{read,write}_mmio() to {read,write}b().

Signed-off-by: Andreas Färber <afaerber@suse.de>
Signed-off-by: Andreas Färber <afaerber@suse.de>
Message-id: 1361051043-27944-4-git-send-email-afaerber@suse.de
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2013-02-18 08:39:10 -06:00
Paolo Bonzini 000823449c build: remove universal-obj-y
All of universal-obj-y, user-obj-y (right now unused) and common-obj-y can
be unified into common-obj-y if we take care of defining CONFIG_SOFTMMU
and CONFIG_USER_ONLY in the toplevel makefile.  This is similar to how
we define symbols for hardware components.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2013-01-26 13:15:35 +00:00