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Volker Rümelin ce31f099fb sdlaudio: replace legacy functions with modern ones
With the modern audio functions it's possible to add new
features like audio recording.

As a side effect this patch fixes a bug where SDL2 can't be used
on Windows. This bug was reported on the qemu-devel mailing list at

https://lists.nongnu.org/archive/html/qemu-devel/2020-01/msg04043.html

Signed-off-by: Volker Rümelin <vr_qemu@t-online.de>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Message-id: 9315afe5-5958-c0b4-ea1e-14769511a9d5@t-online.de
Message-Id: <20210110100239.27588-7-vr_qemu@t-online.de>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2021-01-15 11:25:22 +01:00
.github .github: Enable repo-lockdown bot to refuse GitHub pull requests 2020-04-07 16:19:18 +01:00
.gitlab-ci.d gitlab-ci.yml: Add openSUSE Leap 15.2 for gitlab CI/CD 2021-01-11 14:59:08 +01:00
accel tcg: Remove TCG_TARGET_SUPPORT_MIRROR 2021-01-07 05:09:42 -10:00
audio sdlaudio: replace legacy functions with modern ones 2021-01-15 11:25:22 +01:00
authz authz-simple: Check that 'identity' property is set 2020-11-18 10:51:35 +00:00
backends bugfix: hostmem: Free host_nodes list right after visited 2020-12-18 15:20:23 -05:00
block Yank patches patches for 2021-01-13 2021-01-13 14:19:24 +00:00
bsd-user bsd-user: Update strace.list for FreeBSD's latest syscalls 2021-01-11 14:59:21 +01:00
capstone@f8b1b83301 capstone: Update to upstream "next" branch 2020-10-03 04:23:14 -05:00
chardev chardev/char-socket.c: Add yank feature 2021-01-13 10:21:17 +01:00
contrib libiscsi: convert to meson 2021-01-02 21:03:37 +01:00
crypto crypto: Move the creation of the library to the main meson.build 2020-10-12 11:50:20 -04:00
default-configs hw/mips: Add Loongson-3 machine support 2021-01-04 23:36:03 +01:00
disas disas: Push const down through host disassembly 2021-01-07 05:09:42 -10:00
docs * UI configury cleanups and Meson conversion 2021-01-12 23:22:53 +00:00
dtc@85e5d83984 Makefile: dtc: update, build the libfdt target 2020-06-16 14:49:05 +01:00
dump monitor: Use getter/setter functions for cur_mon 2020-10-09 07:08:19 +02:00
fpu softfloat: Define misc operations for bfloat16 2020-08-28 10:48:07 -07:00
fsdev meson: do not use CONFIG_VIRTFS 2021-01-12 12:38:03 +01:00
gdb-xml target/avr: CPU class: Add GDB support 2020-07-10 17:58:32 +02:00
hw * UI configury cleanups and Meson conversion 2021-01-12 23:22:53 +00:00
include Yank patches patches for 2021-01-13 2021-01-13 14:19:24 +00:00
io Yank patches patches for 2021-01-13 2021-01-13 14:19:24 +00:00
libdecnumber qemu/: fix some comment spelling errors 2020-09-17 20:35:43 +02:00
linux-headers linux-headers: update against 5.10-rc1 2020-11-01 12:30:51 -07:00
linux-user tcg: Add --accel tcg,split-wx property 2021-01-07 05:09:41 -10:00
meson@776acd2a80 submodules: bump meson to 0.55.3 2020-10-17 10:45:42 -04:00
migration migration: Add yank feature 2021-01-13 10:21:17 +01:00
monitor Remove superfluous timer_del() calls 2021-01-08 15:13:38 +00:00
nbd * Fixes for compiling on Haiku, and add Haiku VM for compile-testing 2020-11-17 14:12:21 +00:00
net Remove superfluous timer_del() calls 2021-01-08 15:13:38 +00:00
pc-bios build: -no-pie is no functional linker flag 2020-12-15 12:53:16 -05:00
plugins cfi: Initial support for cfi-icall in QEMU 2021-01-02 21:03:35 +01:00
po configure: move gettext detection to meson.build 2021-01-02 21:03:09 +01:00
python python: add __repr__ to ConsoleSocket to aid debugging 2021-01-02 21:03:09 +01:00
qapi sdlaudio: add -audiodev sdl,out.buffer-count option 2021-01-15 11:25:22 +01:00
qga Further s390x updates: 2021-01-01 18:19:44 +00:00
qobject qobject: Make QString immutable 2020-12-19 10:39:41 +01:00
qom qom: Assert that objects being destroyed have no parent 2021-01-02 21:03:09 +01:00
replay Remove superfluous timer_del() calls 2021-01-08 15:13:38 +00:00
roms qboot: update to latest upstream 2020-11-20 10:48:53 -05:00
scripts scripts/gdb: implement 'qemu bt' 2021-01-12 12:38:03 +01:00
scsi trace: remove argument from trace_init_file 2020-11-11 13:08:09 +00:00
slirp@8f43a99191 slirp: update to fix CVE-2020-29129 CVE-2020-29130 2020-11-27 20:57:11 +04:00
softmmu util: Enhance flush_icache_range with separate data pointer 2021-01-07 05:09:41 -10:00
storage-daemon meson: Propagate gnutls dependency 2021-01-12 12:38:03 +01:00
stubs chardev: do not use machine_init_done 2020-12-15 12:51:51 -05:00
subprojects/libvhost-user libvhost-user: add a simple link test without glib 2020-12-09 13:04:17 -05:00
target * UI configury cleanups and Meson conversion 2021-01-12 23:22:53 +00:00
tcg tcg: Constify TCGLabelQemuLdst.raddr 2021-01-07 05:09:42 -10:00
tests Yank patches patches for 2021-01-13 2021-01-13 14:19:24 +00:00
tools cap_ng: convert to meson 2021-01-06 10:21:20 +01:00
trace From Alex's pull request: 2021-01-06 15:55:29 +00:00
ui * UI configury cleanups and Meson conversion 2021-01-12 23:22:53 +00:00
util Introduce yank feature 2021-01-13 10:21:17 +01:00
.cirrus.yml cirrus/msys2: Cache msys2 mingw in a better way. 2021-01-12 12:38:03 +01:00
.dir-locals.el Add .dir-locals.el file to configure emacs coding style 2015-10-08 19:46:01 +03:00
.editorconfig meson: rename included C source files to .c.inc 2020-08-21 06:18:30 -04:00
.exrc qemu: add .exrc 2012-09-07 09:02:44 +03:00
.gdbinit .gdbinit: load QEMU sub-commands when gdb starts 2017-06-07 14:38:45 +01:00
.gitattributes buildsys: Help git-diff adding .gitattributes config file 2020-11-18 09:33:16 +01:00
.gitignore Add *.pyc back to the .gitignore file 2020-09-23 19:09:56 +02:00
.gitlab-ci.yml gitlab-ci.yml: Add openSUSE Leap 15.2 for gitlab CI/CD 2021-01-11 14:59:08 +01:00
.gitmodules gitmodules: add qemu.org vbootrom submodule 2020-09-23 13:44:59 +01:00
.gitpublish Add a git-publish configuration file 2018-03-05 09:03:17 +00:00
.mailmap MAINTAINERS: chenhc@lemote.com -> chenhuacai@kernel.org 2020-12-13 16:00:58 +01:00
.patchew.yml ci: store Patchew configuration in the tree 2019-06-03 14:03:02 +02:00
.readthedocs.yml readthedocs: build with Python 3.6 2020-10-05 16:30:45 +01:00
.shippable.yml shippable.yml: Remove the Debian9-based MinGW cross-compiler tests 2020-10-02 12:29:11 +01:00
.travis.yml gitlab: move --without-default-devices build from Travis 2021-01-02 21:03:09 +01:00
block.c QAPI patches patches for 2020-12-19 2021-01-01 14:33:03 +00:00
blockdev-nbd.c nbd: Update qapi to support exporting multiple bitmaps 2020-10-30 15:10:15 -05:00
blockdev.c blockdev: Fix a memleak in drive_backup_prepare() 2020-12-13 23:56:16 +01:00
blockjob.c qemu/atomic.h: rename atomic_ to qatomic_ 2020-09-23 16:07:44 +01:00
CODING_STYLE.rst CODING_STYLE.rst: Be less strict about 80 character limit 2020-12-13 17:51:33 +01:00
configure configure: quote command line arguments in config.status 2021-01-12 12:38:03 +01:00
COPYING COPYING: update from FSF 2008-10-12 17:54:42 +00:00
COPYING.LIB COPYING.LIB: Synchronize the LGPL 2.1 with the version from gnu.org 2019-01-30 11:01:22 +01:00
cpu.c remove TCG includes from common code 2021-01-02 21:03:36 +01:00
cpus-common.c overall/alpha tcg cpus|hppa: Fix Lesser GPL version number 2020-11-15 16:43:54 +01:00
disas.c disas: Push const down through host disassembly 2021-01-07 05:09:42 -10:00
exec-vary.c nomaintainer: Fix Lesser GPL version number 2020-11-15 17:04:40 +01:00
gdbstub.c gdbstub: Correct misparsing of vCont C/S requests 2020-12-15 12:04:29 +00:00
gitdm.config contrib: gitdm: add a mapping for Janus Technologies 2019-03-12 19:31:29 +00:00
hmp-commands-info.hx replay: introduce info hmp/qmp command 2020-10-06 08:34:49 +02:00
hmp-commands.hx hmp-commands.hx: List abbreviation after command for cont, quit, print 2020-12-18 10:08:24 +00:00
iothread.c qemu/atomic.h: rename atomic_ to qatomic_ 2020-09-23 16:07:44 +01:00
job-qmp.c trace: switch position of headers to what Meson requires 2020-08-21 06:18:24 -04:00
job.c trace: switch position of headers to what Meson requires 2020-08-21 06:18:24 -04:00
Kconfig Makefile: simplify MINIKCONF rules 2020-07-10 18:02:21 -04:00
Kconfig.host configure: Fix build dependencies with vhost-vdpa. 2020-09-29 02:15:24 -04:00
LICENSE tcg/LICENSE: Remove out of date claim about TCG subdirectory licensing 2019-11-11 15:11:21 +01:00
MAINTAINERS Yank patches patches for 2021-01-13 2021-01-13 14:19:24 +00:00
Makefile Makefile: add dummy target for build.ninja dependencies 2021-01-02 21:03:36 +01:00
memory_ldst.c.inc nomaintainer: Fix Lesser GPL version number 2020-11-15 17:04:40 +01:00
meson_options.txt configure: move GTK+ detection to Meson 2021-01-12 12:38:03 +01:00
meson.build * UI configury cleanups and Meson conversion 2021-01-12 23:22:53 +00:00
module-common.c all: Clean up includes 2016-02-04 17:41:30 +00:00
os-posix.c vl: relocate paths to data directories 2020-09-30 19:11:36 +02:00
os-win32.c vl: relocate paths to data directories 2020-09-30 19:11:36 +02:00
qemu-bridge-helper.c qemu-bridge-helper: relocate path to default ACL 2020-09-30 19:11:36 +02:00
qemu-edid.c qemu-edid: drop cast 2020-10-14 06:05:56 +02:00
qemu-img-cmds.hx qemu-img: add support for rate limit in qemu-img convert 2020-10-27 15:26:20 +01:00
qemu-img.c qobject: Change qobject_to_json()'s value to GString 2020-12-19 10:38:43 +01:00
qemu-io-cmds.c qemu-io: add preallocate mode parameter for truncate command 2020-12-18 12:35:55 +01:00
qemu-io.c trace: remove argument from trace_init_file 2020-11-11 13:08:09 +00:00
qemu-keymap.c Include qemu-common.h exactly where needed 2019-06-12 13:20:20 +02:00
qemu-nbd.c trace: remove argument from trace_init_file 2020-11-11 13:08:09 +00:00
qemu-options-wrapper.h qemu-img: remove references to GEN_DOCS 2018-05-20 08:35:54 +03:00
qemu-options.h Clean up ill-advised or unusual header guards 2016-07-12 16:20:46 +02:00
qemu-options.hx sdlaudio: add -audiodev sdl,out.buffer-count option 2021-01-15 11:25:22 +01:00
qemu.nsi qemu.nsi: Install Sphinx documentation 2020-03-09 16:45:00 +00:00
qemu.sasl Default to GSSAPI (Kerberos) instead of DIGEST-MD5 for SASL 2017-05-09 14:41:47 +01:00
README.rst CHANGELOG: remove disused file 2020-10-27 16:48:50 +01:00
replication.c replication: Introduce new APIs to do replication operation 2016-09-13 11:00:56 +01:00
replication.h Include qemu/module.h where needed, drop it from qemu-common.h 2019-06-12 13:18:33 +02:00
thunk.c overall usermode...: Fix Lesser GPL version number 2020-11-15 16:43:40 +01:00
trace-events trace-events: Fix attribution of trace points to source 2020-09-09 17:17:58 +01:00
VERSION Open 6.0 development tree 2020-12-08 21:04:57 +00:00
version.rc configure: remove CONFIG_FILEVERSION and CONFIG_PRODUCTVERSION 2021-01-02 21:03:37 +01:00

===========
QEMU README
===========

QEMU is a generic and open source machine & userspace emulator and
virtualizer.

QEMU is capable of emulating a complete machine in software without any
need for hardware virtualization support. By using dynamic translation,
it achieves very good performance. QEMU can also integrate with the Xen
and KVM hypervisors to provide emulated hardware while allowing the
hypervisor to manage the CPU. With hypervisor support, QEMU can achieve
near native performance for CPUs. When QEMU emulates CPUs directly it is
capable of running operating systems made for one machine (e.g. an ARMv7
board) on a different machine (e.g. an x86_64 PC board).

QEMU is also capable of providing userspace API virtualization for Linux
and BSD kernel interfaces. This allows binaries compiled against one
architecture ABI (e.g. the Linux PPC64 ABI) to be run on a host using a
different architecture ABI (e.g. the Linux x86_64 ABI). This does not
involve any hardware emulation, simply CPU and syscall emulation.

QEMU aims to fit into a variety of use cases. It can be invoked directly
by users wishing to have full control over its behaviour and settings.
It also aims to facilitate integration into higher level management
layers, by providing a stable command line interface and monitor API.
It is commonly invoked indirectly via the libvirt library when using
open source applications such as oVirt, OpenStack and virt-manager.

QEMU as a whole is released under the GNU General Public License,
version 2. For full licensing details, consult the LICENSE file.


Building
========

QEMU is multi-platform software intended to be buildable on all modern
Linux platforms, OS-X, Win32 (via the Mingw64 toolchain) and a variety
of other UNIX targets. The simple steps to build QEMU are:


.. code-block:: shell

  mkdir build
  cd build
  ../configure
  make

Additional information can also be found online via the QEMU website:

* `<https://qemu.org/Hosts/Linux>`_
* `<https://qemu.org/Hosts/Mac>`_
* `<https://qemu.org/Hosts/W32>`_


Submitting patches
==================

The QEMU source code is maintained under the GIT version control system.

.. code-block:: shell

   git clone https://git.qemu.org/git/qemu.git

When submitting patches, one common approach is to use 'git
format-patch' and/or 'git send-email' to format & send the mail to the
qemu-devel@nongnu.org mailing list. All patches submitted must contain
a 'Signed-off-by' line from the author. Patches should follow the
guidelines set out in the CODING_STYLE.rst file.

Additional information on submitting patches can be found online via
the QEMU website

* `<https://qemu.org/Contribute/SubmitAPatch>`_
* `<https://qemu.org/Contribute/TrivialPatches>`_

The QEMU website is also maintained under source control.

.. code-block:: shell

  git clone https://git.qemu.org/git/qemu-web.git

* `<https://www.qemu.org/2017/02/04/the-new-qemu-website-is-up/>`_

A 'git-publish' utility was created to make above process less
cumbersome, and is highly recommended for making regular contributions,
or even just for sending consecutive patch series revisions. It also
requires a working 'git send-email' setup, and by default doesn't
automate everything, so you may want to go through the above steps
manually for once.

For installation instructions, please go to

*  `<https://github.com/stefanha/git-publish>`_

The workflow with 'git-publish' is:

.. code-block:: shell

  $ git checkout master -b my-feature
  $ # work on new commits, add your 'Signed-off-by' lines to each
  $ git publish

Your patch series will be sent and tagged as my-feature-v1 if you need to refer
back to it in the future.

Sending v2:

.. code-block:: shell

  $ git checkout my-feature # same topic branch
  $ # making changes to the commits (using 'git rebase', for example)
  $ git publish

Your patch series will be sent with 'v2' tag in the subject and the git tip
will be tagged as my-feature-v2.

Bug reporting
=============

The QEMU project uses Launchpad as its primary upstream bug tracker. Bugs
found when running code built from QEMU git or upstream released sources
should be reported via:

* `<https://bugs.launchpad.net/qemu/>`_

If using QEMU via an operating system vendor pre-built binary package, it
is preferable to report bugs to the vendor's own bug tracker first. If
the bug is also known to affect latest upstream code, it can also be
reported via launchpad.

For additional information on bug reporting consult:

* `<https://qemu.org/Contribute/ReportABug>`_


ChangeLog
=========

For version history and release notes, please visit
`<https://wiki.qemu.org/ChangeLog/>`_ or look at the git history for
more detailed information.


Contact
=======

The QEMU community can be contacted in a number of ways, with the two
main methods being email and IRC

* `<mailto:qemu-devel@nongnu.org>`_
* `<https://lists.nongnu.org/mailman/listinfo/qemu-devel>`_
* #qemu on irc.oftc.net

Information on additional methods of contacting the community can be
found online via the QEMU website:

* `<https://qemu.org/Contribute/StartHere>`_