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2014-05-21qapi: zero-initialize all QMP command parametersMichael Roth1-1/+1
In general QMP command parameter values are specified by consumers of the QMP/HMP interface, but in the case of optional parameters these values may be left uninitialized. It is considered a bug for code to make use of optional parameters that have not been flagged as being present by the marshalling code (via corresponding has_<parameter> parameter), however our marshalling code will still pass these uninitialized values on to the corresponding QMP function (to then be ignored). Some compilers (clang in particular) consider this unsafe however, and generate warnings as a result. As reported by Peter Maydell: This is something clang's -fsanitize=undefined spotted. The code generated by qapi-commands.py in qmp-marshal.c for qmp_marshal_* functions where there are some optional arguments looks like this: bool has_force = false; bool force; mi = qmp_input_visitor_new_strict(QOBJECT(args)); v = qmp_input_get_visitor(mi); visit_type_str(v, &device, "device", errp); visit_start_optional(v, &has_force, "force", errp); if (has_force) { visit_type_bool(v, &force, "force", errp); } visit_end_optional(v, errp); qmp_input_visitor_cleanup(mi); if (error_is_set(errp)) { goto out; } qmp_eject(device, has_force, force, errp); In the case where has_force is false, we never initialize force, but then we use it by passing it to qmp_eject. I imagine we don't then actually use the value, but clang complains in particular for 'bool' variables because the value that ends up being loaded from memory for 'force' is not either 0 or 1 (being uninitialized stack contents). Fix this by initializing all QMP command parameters to {0} in the marshalling code prior to passing them on to the QMP functions. Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com> Reported-by: Peter Maydell <peter.maydell@linaro.org> Tested-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Eric Blake <eblake@redhat.com> Reviewed-by: Markus Armbruster <armbru@redhat.com> Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
2014-05-21scripts/qapi.py: Avoid syntax not supported by Python 2.4Luiz Capitulino1-1/+1
The Python "except Foo as x" syntax was only introduced in Python 2.6, but we aim to support Python 2.4 and later. Use the old-style "except Foo, x" syntax instead, thus fixing configure/compile on systems with older Python. Reported-by: Peter Maydell <peter.maydell@linaro.org> Tested-by: Andreas Färber <andreas.faerber@web.de> Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
2014-05-16qapi: skip redundant includesBenoît Canet1-3/+11
The purpose of this change is to help create a json file containing common definitions; each bit of generated C code must be emitted only one time. A second history global to all QAPISchema instances has been added to detect when a file is included more than one time and skip these includes. It does not act as a stack and the changes made to it by the __init__ function are propagated back to the caller so it's really a global state. Signed-off-by: Benoit Canet <benoit@irqsave.net> Reviewed-by: Eric Blake <eblake@redhat.com> Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
2014-05-15qapi: Replace uncommon use of the error API by the common oneMarkus Armbruster2-100/+128
We commonly use the error API like this: err = NULL; foo(..., &err); if (err) { goto out; } bar(..., &err); Every error source is checked separately. The second function is only called when the first one succeeds. Both functions are free to pass their argument to error_set(). Because error_set() asserts no error has been set, this effectively means they must not be called with an error set. The qapi-generated code uses the error API differently: // *errp was initialized to NULL somewhere up the call chain frob(..., errp); gnat(..., errp); Errors accumulate in *errp: first error wins, subsequent errors get dropped. To make this work, the second function does nothing when called with an error set. Requires non-null errp, or else the second function can't see the first one fail. This usage has also bled into visitor tests, and two device model object property getters rtc_get_date() and balloon_stats_get_all(). With the "accumulate" technique, you need fewer error checks in callers, and buy that with an error check in every callee. Can be nice. However, mixing the two techniques is confusing. You can't use the "accumulate" technique with functions designed for the "check separately" technique. You can use the "check separately" technique with functions designed for the "accumulate" technique, but then error_set() can't catch you setting an error more than once. Standardize on the "check separately" technique for now, because it's overwhelmingly prevalent. Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
2014-05-15qapi: Un-inline visit of implicit structMarkus Armbruster1-14/+34
In preparation of error handling changes. Bonus: generates less duplicated code. Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
2014-05-15qapi-visit.py: Clean up a sloppy use of field prefixMarkus Armbruster1-1/+1
generate_visit_struct_fields() generates the base type's struct member name both with and without the field prefix. Harmless, because the field prefix is always empty there: only unboxed complex members have a prefix, and those can't have a base type. Clean it up anyway. Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
2014-05-15qapi: Clean up shadowing of parameters and locals in inner scopesMarkus Armbruster1-3/+17
By un-inlining the visit of nested complex types. Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
2014-05-15qapi-visit.py: Clean up confusing push_indent() / pop_indent() useMarkus Armbruster1-18/+14
Changing implicit indentation in the middle of generating a block makes following the code being generated unnecessarily hard. Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
2014-05-15qapi: Replace start_optional()/end_optional() by optional()Markus Armbruster2-5/+3
Semantics of end_optional() differ subtly from the other end_FOO() callbacks: when start_FOO() succeeds, the matching end_FOO() gets called regardless of what happens in between. end_optional() gets called only when everything in between succeeds as well. Entirely undocumented, like all of the visitor API. The only user of Visitor Callback end_optional() never did anything, and was removed in commit 9f9ab46. I'm about to clean up error handling in the generated visitor code, and end_optional() is in my way. No users mean no test cases, and making non-trivial cleanup transformations without test cases doesn't strike me as a good idea. Drop end_optional(), and rename start_optional() to optional(). We can always go back to a pair of callbacks when we have an actual need. Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
2014-05-15qapi: Normalize marshalling's visitor initialization and cleanupMarkus Armbruster1-15/+12
Input and output marshalling functions do it differently. Change them to work the same: initialize the I/O visitor, use it, clean it up, initialize the dealloc visitor, use it, clean it up. This delays dealloc visitor initialization in output marshalling functions, and input visitor cleanup in input marshalling functions. No functional change, but the latter will be convenient when I change the error handling. Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
2014-05-09Merge remote-tracking branch 'remotes/qmp-unstable/queue/qmp' into stagingPeter Maydell4-23/+73
* remotes/qmp-unstable/queue/qmp: (38 commits) Revert "qapi: Clean up superfluous null check in qapi_dealloc_type_str()" qapi: Document optional arguments' backwards compatibility qmp: use valid JSON in transaction example qmp: Don't use error_is_set() to suppress additional errors dump: Drop pointless error_is_set(), DumpState member errp qemu-option: Clean up fragile use of error_is_set() qga: Drop superfluous error_is_set() qga: Clean up fragile use of error_is_set() qapi: Clean up fragile use of error_is_set() tests/qapi-schema: Drop superfluous error_is_set() qapi: Drop redundant, unclean error_is_set() hmp: Guard against misuse of hmp_handle_error() qga: Use return values instead of error_is_set(errp) error: Consistently name Error ** objects errp, and not err qmp: Consistently name Error ** objects errp, and not err qga: Consistently name Error ** objects errp, and not err qmp hmp: Consistently name Error * objects err, and not errp pci-assign: assigned_initfn(): set monitor error in common error handler pci-assign: propagate errors from assign_intx() pci-assign: propagate errors from assign_device() ... Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-05-08qapi: Add a primitive to include other files from a QAPI schema fileLluís Vilanova1-12/+52
The primitive uses JSON syntax, and include paths are relative to the file using the directive: { 'include': 'path/to/file.json' } Signed-off-by: Lluís Vilanova <vilanova@ac.upc.edu> Reviewed-by: Eric Blake <eblake@redhat.com> Reviewed-by: Markus Armbruster <armbru@redhat.com> Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
2014-05-08qapi: Use an explicit input fileLluís Vilanova4-11/+21
Use an explicit input file on the command-line instead of reading from standard input. It also outputs the proper file name when there's an error. Signed-off-by: Lluís Vilanova <vilanova@ac.upc.edu> Reviewed-by: Eric Blake <eblake@redhat.com> Reviewed-by: Markus Armbruster <armbru@redhat.com> Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
2014-05-07trace: [tracetool] Minimize the amount of per-backend codeLluís Vilanova18-400/+308
Backends now only contain the essential backend-specific code, and most of the work is moved to frontend code. Signed-off-by: Lluís Vilanova <vilanova@ac.upc.edu> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2014-05-07trace: [simple] Bump up log version numberLluís Vilanova1-5/+5
The following tracetool cleanup changes the event numbering policy. Signed-off-by: Lluís Vilanova <vilanova@ac.upc.edu> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2014-05-07trace: [tracetool] Change format docs to point to the generated fileLluís Vilanova7-11/+11
Signed-off-by: Lluís Vilanova <vilanova@ac.upc.edu> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2014-05-07trace: [tracetool] Show list of frontends and backends sorted by nameLluís Vilanova2-3/+3
Signed-off-by: Lluís Vilanova <vilanova@ac.upc.edu> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2014-05-07trace: [tracetool] Cosmetic changesLluís Vilanova1-7/+7
Signed-off-by: Lluís Vilanova <vilanova@ac.upc.edu> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2014-05-07trace: [tracetool] Spacing changesLluís Vilanova1-3/+4
Signed-off-by: Lluís Vilanova <vilanova@ac.upc.edu> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2014-05-07trace: [tracetool] Add methods 'Event.copy' and 'Arguments.copy'Lluís Vilanova1-0/+9
Signed-off-by: Lluís Vilanova <vilanova@ac.upc.edu> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2014-05-07trace: [tracetool] Add method 'Event.api' to build event namesLluís Vilanova6-17/+27
Makes it easier to ensure proper naming across the different frontends and backends. Signed-off-by: Lluís Vilanova <vilanova@ac.upc.edu> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2014-04-18scripts: add sample model file for Coverity ScanPaolo Bonzini1-0/+183
This is the model file that is being used for the QEMU project's scans on scan.coverity.com. It fixed about 30 false positives (10% of the total) and exposed about 60 new memory leaks. The file is not automatically used; changes to it must be propagated to the website manually by an admin (right now Markus, Peter and me are admins). Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Markus Armbruster <armbru@redhat.com> Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
2014-03-31make-release: Record SeaBIOS versionAndreas Färber1-0/+1
Before deleting .git, determine the version and save it in .version file. Cc: Gerd Hoffmann <kraxel@redhat.com> Signed-off-by: Andreas Färber <afaerber@suse.de> Message-id: 1395277315-7806-1-git-send-email-afaerber@suse.de Reviewed-by: Gerd Hoffmann <kraxel@redhat.com> Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-03-17scripts/qemu-binfmt-conf.sh: Add AArch64 registrationPeter Maydell1-0/+3
Add the binfmt-misc magic needed to register QEMU for handling AArch64 ELF binaries. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Richard Henderson <rth@twiddle.net> Message-id: 1394822294-14837-26-git-send-email-peter.maydell@linaro.org
2014-03-15scripts/make-release: Don't distribute .git directoriesCole Robinson1-1/+1
[crobinso@localhost qemu-2.0.0-rc0]$ find . -name .git ./dtc/.git ./pixman/.git This is already done for the rom submodules. https://bugs.launchpad.net/qemu/+bug/1224414 Signed-off-by: Cole Robinson <crobinso@redhat.com> Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
2014-03-11qapi script: do not add "_" for every capitalized char in enumWenchao Xia1-7/+19
Now "enum AIOContext" will generate AIO_CONTEXT instead of A_I_O_CONTEXT, "X86CPU" will generate X86_CPU instead of X86_C_P_U. Signed-off-by: Wenchao Xia <wenchaoqemu@gmail.com> Reviewed-by: Eric Blake <eblake@redhat.com> Reviewed-by: Markus Armbruster <armbru@redhat.com> Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
2014-03-11qapi script: do not allow string discriminatorWenchao Xia1-0/+5
Since enum based discriminators provide better type-safety and ensure that future qapi additions do not forget to adjust dependent unions, forbid using string as discriminator from now on. Signed-off-by: Wenchao Xia <wenchaoqemu@gmail.com> Reviewed-by: Eric Blake <eblake@redhat.com> Reviewed-by: Markus Armbruster <armbru@redhat.com> Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
2014-03-11qapi script: support enum type as discriminator in unionWenchao Xia3-14/+60
By default, any union will automatically generate a enum type as "[UnionName]Kind" in C code, and it is duplicated when the discriminator is specified as a pre-defined enum type in schema. After this patch, the pre-defined enum type will be really used as the switch case condition in generated C code, if discriminator is an enum field. Signed-off-by: Wenchao Xia <wenchaoqemu@gmail.com> Reviewed-by: Markus Armbruster <armbru@redhat.com> Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
2014-03-11qapi script: use same function to generate enum stringWenchao Xia3-13/+25
Prior to this patch, qapi-visit.py used custom code to generate enum names used for handling a qapi union. Fix it to instead reuse common code, with identical generated results, and allowing future updates to generation to only need to touch one place. Signed-off-by: Wenchao Xia <wenchaoqemu@gmail.com> Reviewed-by: Eric Blake <eblake@redhat.com> Reviewed-by: Markus Armbruster <armbru@redhat.com> Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
2014-03-11qapi script: code move for generate_enum_name()Wenchao Xia2-10/+10
Later both qapi-types.py and qapi-visit.py need a common function for enum name generation. Signed-off-by: Wenchao Xia <wenchaoqemu@gmail.com> Reviewed-by: Eric Blake <eblake@redhat.com> Reviewed-by: Markus Armbruster <armbru@redhat.com> Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
2014-03-11qapi script: check correctness of unionWenchao Xia1-2/+86
Since line info is remembered as QAPISchema.line now, this patch uses it as additional info for every expr in QAPISchema inside qapi.py, then improves error message with it in checking of exprs. For common union the patch will check whether base is a valid complex type if specified. For flat union it will check whether base presents, whether discriminator is found in base, whether the key of every branch is correct when discriminator is an enum type. Signed-off-by: Wenchao Xia <wenchaoqemu@gmail.com> Reviewed-by: Markus Armbruster <armbru@redhat.com> Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
2014-03-11qapi script: remember line number in schema parsingWenchao Xia1-6/+8
Before this patch, 'QAPISchemaError' scans whole input until 'pos' to get error line number. After this patch, the scan is avoided since line number is remembered in schema parsing. This patch also benefits other error report functions, which would be introduced later. Signed-off-by: Wenchao Xia <wenchaoqemu@gmail.com> Reviewed-by: Eric Blake <eblake@redhat.com> Reviewed-by: Markus Armbruster <armbru@redhat.com> Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
2014-03-11qapi script: add check for duplicated keyWenchao Xia1-0/+2
It is bad that same key was specified twice, especially when a union has two branches with same condition. This patch can prevent it. Signed-off-by: Wenchao Xia <wenchaoqemu@gmail.com> Reviewed-by: Eric Blake <eblake@redhat.com> Reviewed-by: Markus Armbruster <armbru@redhat.com> Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
2014-03-11qapi script: remember explicitly defined enum valuesWenchao Xia1-5/+11
Later other scripts will need to check the enum values. Signed-off-by: Wenchao Xia <wenchaoqemu@gmail.com> Reviewed-by: Eric Blake <eblake@redhat.com> Reviewed-by: Markus Armbruster <armbru@redhat.com> Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
2014-03-03qapi: Clean up null checking in generated visitorsMarkus Armbruster1-7/+7
Visitors get passed a pointer to the visited object. The generated visitors try to cope with this pointer being null in some places, for instance like this: visit_start_optional(m, obj ? &(*obj)->has_name : NULL, "name", &err); visit_start_optional() passes its second argument to Visitor method start_optional. Three out of three methods dereference it unconditionally. I fail to see how this pointer could legitimately be null. All this useless null checking is highly redundant, which Coverity duly reports. About 200 times. Remove the useless null checks. Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
2014-03-03qapi: Drop unused code in qapi-commands.pyMarkus Armbruster1-20/+0
Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
2014-03-03qapi: Drop nonsensical header guard in generated qapi-visit.cMarkus Armbruster1-2/+0
Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
2014-03-03qapi: Fix licensing of scriptsMarkus Armbruster4-8/+8
The scripts carry this copyright notice: # This work is licensed under the terms of the GNU GPLv2. # See the COPYING.LIB file in the top-level directory. The sentences contradict each other, as COPYING.LIB contains the LGPL 2.1. Michael Roth says this was a simple pasto, and he meant to refer COPYING. Let's fix that. Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
2014-02-28qmp: Check for returned data from __json_read in get_eventsFam Zheng1-1/+6
When QEMU process aborts and socket is closed, qmp client will not detect it. When this happens, some qemu-iotests scripts will enter an endless loop waiting for qmp events. It's better we raise an exception in qmp.py to catch this and make the test script stop. Signed-off-by: Fam Zheng <famz@redhat.com> Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com> Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
2014-02-28QMP: Allow dot separated dict path arguments in qmp-shellFam Zheng1-2/+18
As another convenience to allow using commands that expect a dict as argument, this patch adds support for foo.bar=value syntax, similar to command line argument style: (QEMU) blockdev-add options.driver=file options.id=drive1 options.filename=... Signed-off-by: Fam Zheng <famz@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com> Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
2014-02-24Merge remote-tracking branch 'remotes/bonzini/configure' into stagingPeter Maydell1-0/+3
* remotes/bonzini/configure: build: softmmu targets do not have a "main.o" file configure: Disable libtool if -fPIE does not work with it (bug #1257099) block: convert block drivers linked with libs to modules Makefile: introduce common-obj-m and block-obj-m for DSO Makefile: install modules with "make install" module: implement module loading rules.mak: introduce DSO rules darwin: do not use -mdynamic-no-pic block: use per-object cflags and libs rules.mak: allow per object cflags and libs rules.mak: fix $(obj) to a real relative path util: Split out exec_dir from os_find_datadir Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-02-21Merge remote-tracking branch 'remotes/stefanha/tags/tracing-pull-request' ↵Peter Maydell3-56/+132
into staging Tracing pull request # gpg: Signature made Wed 19 Feb 2014 15:42:20 GMT using RSA key ID 81AB73C8 # gpg: Good signature from "Stefan Hajnoczi <stefanha@redhat.com>" # gpg: aka "Stefan Hajnoczi <stefanha@gmail.com>" # gpg: WARNING: This key is not certified with a trusted signature! # gpg: There is no indication that the signature belongs to the owner. # Primary key fingerprint: 8695 A8BF D3F9 7CDA AC35 775A 9CA4 ABB3 81AB 73C8 * remotes/stefanha/tags/tracing-pull-request: trace-events: Fix typo in "offset" Add ust generated files to .gitignore Update documentation for LTTng ust tracing Adapt Makefiles to the new LTTng ust interface Modified the tracetool framework for LTTng 2.x Fix configure script for LTTng 2.x Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-02-20module: implement module loadingFam Zheng1-0/+3
This patch adds loading, stamp checking and initialization of modules. The init function of dynamic module is no longer directly called as __attribute__((constructor)) in static linked version, it is called only after passed the checking of presense of stamp symbol: qemu_stamp_$RELEASEHASH where $RELEASEHASH is generated by hashing version strings and content of configure script. With this, modules built from a different tree/version/configure will not be loaded. The module loading code requires gmodule-2.0. Modules are searched under - CONFIG_MODDIR - executable folder (to allow running qemu-{img,io} in the build directory) - ../ of executable folder (to allow running system emulator in the build directory) Modules are linked under their subdir respectively, then copied to top level of build directory for above convinience, e.g.: $(BUILD_DIR)/block/curl.so -> $(BUILD_DIR)/block-curl.so Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Fam Zheng <famz@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2014-02-20Merge remote-tracking branch 'remotes/qmp-unstable/queue/qmp' into stagingPeter Maydell1-0/+3
* remotes/qmp-unstable/queue/qmp: monitor: Add object_add class argument completion. monitor: Add object_del id argument completion. monitor: Add device_add device argument completion. monitor: Add device_del id argument completion. qmp: expose list of supported character device backends Use error_is_set() only when necessary QMP: allow JSON dict arguments in qmp-shell hmp: migrate command (without -d) now blocks correctly Conflicts: blockdev.c [PMM: resolved trivial conflict in blockdev.c] Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-02-19Modified the tracetool framework for LTTng 2.xMohamad Gebai3-56/+132
* A new format is required to generate definitions for ust tracepoints. Files ust_events_h.py and ust_events_c.py define common macros, while new function ust_events_h in events.py does the actual definition of each tracepoint. * ust.py generates the new interface for calling userspace tracepoints with LTTng 2.x, replacing trace_name(args) to tracepoint(name, args). * As explained in ust_events_c.py, -Wredundant-decls gives a warning when compiling with gcc 4.7 or older. This is specific to lttng-ust so for now use a pragma clause to avoid getting a warning. Signed-off-by: Mohamad Gebai <mohamad.gebai@polymtl.ca> Reviewed-by: Alex Bennée <alex@bennee.com> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2014-02-17QMP: allow JSON dict arguments in qmp-shellStefan Hajnoczi1-0/+3
qmp-shell hides the QMP wire protocol JSON encoding from the user. Most of the time this is helpful and makes the command-line human-friendly. Some QMP commands take a dict as an argument. In order to express this we need to revert back to JSON notation. This patch allows JSON dict arguments in qmp-shell so commands like blockdev-add and nbd-server-start can be invoked: (QEMU) blockdev-add options={"driver":"file","id":"drive1",...} Note that spaces are not allowed since str.split() is used to break up the command-line arguments first. Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Reviewed-by: Benoit Canet <benoit@irqsave.net> Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
2014-02-15misc: Fix case Qemu -> QEMUStefan Weil1-1/+1
Signed-off-by: Stefan Weil <sw@weilnetz.de> Reviewed-by: Laszlo Ersek <lersek@redhat.com> Reviewed-by: Andreas Färber <afaerber@suse.de> Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
2014-01-31Merge remote-tracking branch 'stefanha/tags/tracing-pull-request' into stagingPeter Maydell1-4/+2
Tracing pull request # gpg: Signature made Mon 27 Jan 2014 14:51:09 GMT using RSA key ID 81AB73C8 # gpg: Good signature from "Stefan Hajnoczi <stefanha@redhat.com>" # gpg: aka "Stefan Hajnoczi <stefanha@gmail.com>" # gpg: WARNING: This key is not certified with a trusted signature! # gpg: There is no indication that the signature belongs to the owner. # Primary key fingerprint: 8695 A8BF D3F9 7CDA AC35 775A 9CA4 ABB3 81AB 73C8 * stefanha/tags/tracing-pull-request: trace: fix simple trace "disable" keyword trace: add glib 2.32+ static GMutex support trace: [simple] Do not include "trace/simple.h" in generated tracer headers tracing: start trace processing thread in final child process Message-id: 1390834386-23139-1-git-send-email-stefanha@redhat.com Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-01-27trace: fix simple trace "disable" keywordStefan Hajnoczi1-1/+2
The trace-events "disable" keyword turns an event into a nop at compile-time. This is important for high-frequency events that can impact performance. The "disable" keyword is currently broken in the simple trace backend. This patch fixes the problem as follows: Trace events are identified by their TraceEventID number. When events are disabled there are two options for assigning TraceEventID numbers: 1. Skip disabled events and don't assign them a number. 2. Assign numbers for all events regardless of the disabled keyword. The simple trace backend and its binary file format uses approach #1. The tracetool infrastructure has been using approach #2 for a while. The result is that the numbers used in simple trace files do not correspond with TraceEventIDs. In trace/simple.c we assumed that they are identical and therefore emitted bogus numbers. This patch fixes the bug by using TraceEventID for trace_event_id() while sticking to approach #1 for simple trace file numbers. This preserves simple trace file format compatibility. Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2014-01-27trace: [simple] Do not include "trace/simple.h" in generated tracer headersLluís Vilanova1-3/+0
The header is not necessary, given that the simple backend does not define any inlined tracing routines. Signed-off-by: Lluís Vilanova <vilanova@ac.upc.edu> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-24 00:46:10 +0000