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Markus Armbruster 998da0b158 qobject: Factor JSON writer out of qobject_to_json()
We have two JSON writers written in C: qobject/qjson.c provides
qobject_to_json(), and migration/qjson.c provides a more low level
imperative interface.  They don't share code.  The latter tacitly
limits numbers to int64_t, and strings contents to characters that
don't need escaping.

Factor out qobject_to_json()'s JSON writer as qobject/json-writer.c.
Straightforward, except for numbers: since the writer is to be
independent of QObject, it can't use qnum_to_string().  Open-code it
instead.  This is actually an improvement of sorts, because it
liberates qnum_to_string() from JSON's needs: its JSON-related FIXMEs
move to the JSON writer, where they belong.

The next commit will replace migration/qjson.c.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20201211171152.146877-16-armbru@redhat.com>
2020-12-19 10:39:16 +01:00
.github
.gitlab-ci.d gitlab-ci: Add Xen cross-build jobs 2020-12-09 08:04:34 +01:00
accel tcg: Make CPUClass.debug_excp_handler optional 2020-12-16 15:50:33 -05:00
audio audio: add sanity check 2020-12-15 09:28:52 +01:00
authz authz-simple: Check that 'identity' property is set 2020-11-18 10:51:35 +00:00
backends qdev: Make qdev_get_prop_ptr() get Object* arg 2020-12-15 10:02:07 -05:00
block qobject: Change qobject_to_json()'s value to GString 2020-12-19 10:38:43 +01:00
bsd-user trace: remove argument from trace_init_file 2020-11-11 13:08:09 +00:00
capstone@f8b1b83301 capstone: Update to upstream "next" branch 2020-10-03 04:23:14 -05:00
chardev qapi: Use QAPI_LIST_PREPEND() where possible 2020-12-19 10:20:14 +01:00
contrib elf2dmp/pdb: Plug memleak in pdb_init_from_file 2020-12-13 23:56:16 +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: Remove the 'r4k' machine 2020-11-03 16:51:13 +01:00
disas nomaintainer: Fix Lesser GPL version number 2020-11-15 17:04:40 +01:00
docs qapi: Use QAPI_LIST_PREPEND() where possible 2020-12-19 10:20:14 +01:00
dtc@85e5d83984
dump monitor: Use getter/setter functions for cur_mon 2020-10-09 07:08:19 +02:00
fpu
fsdev fsdev: open brace '{' following struct go on the same line 2020-12-13 17:46:36 +01:00
gdb-xml
hw hw/rdma: Replace QList by GQueue 2020-12-19 10:38:43 +01:00
include qobject: Factor JSON writer out of qobject_to_json() 2020-12-19 10:39:16 +01:00
io io: Don't use '#' flag of printf format 2020-10-29 09:57:37 +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 linux-user: remove GNUC check 2020-12-15 12:53:14 -05:00
meson@776acd2a80 submodules: bump meson to 0.55.3 2020-10-17 10:45:42 -04:00
migration qapi: Use QAPI_LIST_PREPEND() where possible 2020-12-19 10:20:14 +01:00
monitor qmp: Fix tracing of non-string command IDs 2020-12-19 10:38:43 +01:00
nbd * Fixes for compiling on Haiku, and add Haiku VM for compile-testing 2020-11-17 14:12:21 +00:00
net netfilter: Use class properties 2020-12-15 10:02:07 -05:00
pc-bios build: -no-pie is no functional linker flag 2020-12-15 12:53:16 -05:00
plugins plugin: propagate errors 2020-12-15 12:51:56 -05:00
po
python treewide: do not use short-form boolean options 2020-12-10 12:15:11 -05:00
qapi string-output-visitor: Fix to use sufficient precision 2020-12-19 10:37:16 +01:00
qga qobject: Change qobject_to_json()'s value to GString 2020-12-19 10:38:43 +01:00
qobject qobject: Factor JSON writer out of qobject_to_json() 2020-12-19 10:39:16 +01:00
qom Revert "qobject: let object_property_get_str() use new API" 2020-12-19 10:38:59 +01:00
replay replay: remove some dead code 2020-11-09 04:09:49 -05:00
roms qboot: update to latest upstream 2020-11-20 10:48:53 -05:00
scripts scripts/git.orderfile: Keep files with .inc extension sorted 2020-12-15 12:53:16 -05:00
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 vl: rename local variable in configure_accelerators 2020-12-15 12:52:06 -05:00
storage-daemon storage-daemon: Call bdrv_close_all() on exit 2020-12-11 17:52:40 +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 qapi: Use QAPI_LIST_PREPEND() where possible 2020-12-19 10:20:14 +01:00
tcg tcg: Revert "tcg/optimize: Flush data at labels not TCG_OPF_BB_END" 2020-11-04 10:35:40 -08:00
tests qobject: Drop qstring_get_try_str() 2020-12-19 10:39:16 +01:00
tools virtiofsd: replace _Static_assert with QEMU_BUILD_BUG_ON 2020-12-15 12:52:10 -05:00
trace qapi: Use QAPI_LIST_PREPEND() where possible 2020-12-19 10:20:14 +01:00
ui qapi: Use QAPI_LIST_PREPEND() where possible 2020-12-19 10:20:14 +01:00
util qapi: Use QAPI_LIST_PREPEND() where possible 2020-12-19 10:20:14 +01:00
.cirrus.yml Remove obsolete setuptools dependency and fix Stefan's 2020-11-26 14:25:47 +00:00
.dir-locals.el
.editorconfig
.exrc
.gdbinit
.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 pc,pci,virtio: fixes, cleanups 2020-12-09 20:08:54 +00:00
.gitmodules gitmodules: add qemu.org vbootrom submodule 2020-09-23 13:44:59 +01:00
.gitpublish
.mailmap MAINTAINERS: chenhc@lemote.com -> chenhuacai@kernel.org 2020-12-13 16:00:58 +01:00
.patchew.yml
.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-ci: Move coroutine tests across to gitlab 2020-12-09 08:04:34 +01:00
block.c block: Avoid qobject_get_try_str() 2020-12-19 10:38:43 +01:00
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 build: -no-pie is no functional linker flag 2020-12-15 12:53:16 -05:00
COPYING
COPYING.LIB
cpu.c cpu: Move cpu_common_props to hw/core/cpu.c 2020-12-15 10:02:07 -05:00
cpus-common.c overall/alpha tcg cpus|hppa: Fix Lesser GPL version number 2020-11-15 16:43:54 +01:00
disas.c disas: Enable capstone disassembly for s390x 2020-10-03 04:25:14 -05:00
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
hmp-commands-info.hx replay: introduce info hmp/qmp command 2020-10-06 08:34:49 +02:00
hmp-commands.hx monitor: allow quitting while in preconfig state 2020-12-15 12:51:57 -05:00
iothread.c qemu/atomic.h: rename atomic_ to qatomic_ 2020-09-23 16:07:44 +01:00
job-qmp.c
job.c
Kconfig
Kconfig.host configure: Fix build dependencies with vhost-vdpa. 2020-09-29 02:15:24 -04:00
LICENSE
MAINTAINERS i386: hvf: remove stale MAINTAINERS entry for old hvf stubs 2020-12-16 14:06:53 -05:00
Makefile Makefile: No echoing for 'make help V=1' 2020-11-09 04:09:49 -05:00
memory_ldst.c.inc nomaintainer: Fix Lesser GPL version number 2020-11-15 17:04:40 +01:00
meson_options.txt fuse: Implement hole detection through lseek 2020-12-11 17:52:40 +01:00
meson.build i386: move kvm accel files into kvm/ 2020-12-16 14:06:52 -05:00
module-common.c
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-cmds: Simplify help_oneline 2020-10-02 15:46:40 +02:00
qemu-io.c trace: remove argument from trace_init_file 2020-11-11 13:08:09 +00:00
qemu-keymap.c
qemu-nbd.c trace: remove argument from trace_init_file 2020-11-11 13:08:09 +00:00
qemu-options-wrapper.h
qemu-options.h
qemu-options.hx Remove the deprecated -show-cursor option 2020-12-15 12:52:03 -05:00
qemu.nsi
qemu.sasl
README.rst CHANGELOG: remove disused file 2020-10-27 16:48:50 +01:00
replication.c
replication.h
thunk.c overall usermode...: Fix Lesser GPL version number 2020-11-15 16:43:40 +01:00
trace-events
VERSION Open 6.0 development tree 2020-12-08 21:04:57 +00:00
version.rc

===========
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>`_