Using signal to establish a signal handler is not portable; on
SysV systems, the signal handler would be reset to SIG_DFL after
delivery, while BSD preserves the signal handler. Daniel Berrange
reported that (to complicate matters further) the signal system call
has SysV behavior, but glibc signal() actually calls the sigaction
system call to provide BSD behavior.
However, using signal() to set a signal's disposition to SIG_DFL
or SIG_IGN is portable and is a relatively common occurrence in
QEMU source code, so allow that.
Reviewed-by: Daniel P. Berrange <berrange@redhat.com>
Reviewed-by: Richard W.M. Jones <rjones@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Before the previous commit, parameter promote_int = true made
visit_start_alternate() with an input visitor avoid QTYPE_QINT
variants and create QTYPE_QFLOAT variants instead. This was used
where QTYPE_QINT variants were invalid.
The previous commit fused QTYPE_QINT with QTYPE_QFLOAT, rendering
promote_int useless and unused.
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20170607163635.17635-8-marcandre.lureau@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
We would like to use a same QObject type to represent numbers, whether
they are int, uint, or floats. Getters will allow some compatibility
between the various types if the number fits other representations.
Add a few more tests while at it.
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20170607163635.17635-7-marcandre.lureau@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
[parse_stats_intervals() simplified a bit, comment in
test_visitor_in_int_overflow() tidied up, suppress bogus warnings]
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Today, if we use a trace-event file which does not declare an event
existing in the log file we'll get the following error:
$ scripts/simpletrace.py trace-events trace-68508
Traceback (most recent call last):
File "scripts/simpletrace.py", line 242, in <module>
run(Formatter())
File "scripts/simpletrace.py", line 217, in run
process(events, sys.argv[2], analyzer, read_header=read_header)
File "scripts/simpletrace.py", line 192, in process
for rec in read_trace_records(edict, log):
File "scripts/simpletrace.py", line 107, in read_trace_records
rec = read_record(edict, idtoname, fobj)
File "scripts/simpletrace.py", line 71, in read_record
return get_record(edict, idtoname, rechdr, fobj)
File "scripts/simpletrace.py", line 45, in get_record
event = edict[name]
KeyError: 'qemu_mutex_locked'
This patch improves this error by adding a hint instead of just that
KeyError log:
$ scripts/simpletrace.py trace-events trace-68508
'qemu_mutex_locked' event is logged but is not declared in the trace
events file, try using trace-events-all instead.
Signed-off-by: Jose Ricardo Ziviani <joserz@linux.vnet.ibm.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-id: 1496075404-8845-1-git-send-email-joserz@linux.vnet.ibm.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Test code to check if we can crash QEMU using -device. It will
test all accel/machine/device combinations by default, which may
take a few hours (it's more than 90k test cases). There's a "-r"
option that makes it test a random sample of combinations.
The scripts contains a whitelist for: 1) known error messages
that make QEMU exit cleanly; 2) known QEMU crashes.
This is the behavior when the script finds a failure:
* Known clean (exitcode=1) errors generate DEBUG messages
(hidden by default)
* Unknown clean (exitcode=1) errors will generate INFO messages
(visible by default)
* Known crashes generate error messages, but are not fatal
(unless --strict mode is used)
* Unknown crashes generate fatal error messages
Having an updated whitelist of known clean errors is useful to make the
script less verbose and run faster when in --quick mode, but the
whitelist doesn't need to be always up to date.
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Message-Id: <20170526181200.17227-4-ehabkost@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Allow the exit code of QEMU to be queried by scripts.
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Message-Id: <20170526181200.17227-3-ehabkost@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Keep the Popen object around to we can query its exit code later.
To keep the existing 'self._popen is None' checks working, add a
is_running() method, that will check if the process is still running.
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Message-Id: <20170526181200.17227-2-ehabkost@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Alternates are sum types like unions, but use the JSON type on the
wire / QType in QObject instead of an explicit tag. That's why we
require alternate members to have distinct QTypes.
The recently introduced keyval_parse() (commit d454dbe) can only
produce string scalars. The qobject_input_visitor_new_keyval() input
visitor mostly hides the difference, so code using a QObject input
visitor doesn't have to care whether its input was parsed from JSON or
KEY=VALUE,... The difference leaks for alternates, as noted in commit
0ee9ae7: a non-string, non-enum scalar alternate value can't currently
be expressed.
In part, this is just our insufficiently sophisticated implementation.
Consider alternate type 'GuestFileWhence'. It has an integer member
and a 'QGASeek' member. The latter is an enumeration with values
'set', 'cur', 'end'. The meaning of b=set, b=cur, b=end, b=0, b=1 and
so forth is perfectly obvious. However, our current implementation
falls apart at run time for b=0, b=1, and so forth. Fixable, but not
today; add a test case and a TODO comment.
Now consider an alternate type with a string and an integer member.
What's the meaning of a=42? Is it the string "42" or the integer 42?
Whichever meaning you pick makes the other inexpressible. This isn't
just an implementation problem, it's fundamental. Our current
implementation will pick string.
So far, we haven't needed such alternates. To make sure we stop and
think before we add one that cannot sanely work with keyval_parse(),
let's require alternate members to have sufficiently distinct
representation in KEY=VALUE,... syntax:
* A string member clashes with any other scalar member
* An enumeration member clashes with bool members when it has value
'on' or 'off'.
* An enumeration member clashes with numeric members when it has a
value that starts with '-', '+', or a decimal digit. This is a
rather lazy approximation of the actual number syntax accepted by
the visitor.
Note that enumeration values starting with '-' and '+' are rejected
elsewhere already, but better safe than sorry.
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <1495471335-23707-5-git-send-email-armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
When invoking the script with -s, we end up passing a bogus value
to QEMU:
$ ./scripts/qmp/qom-set -s /var/tmp/qmp-sock-exp /machine.accel kvm
{}
$ ./scripts/qmp/qom-get -s /var/tmp/qmp-sock-exp /machine.accel
/var/tmp/qmp-sock-exp
This happens because sys.argv[2] isn't necessarily the command line
argument that holds the value. It is sys.argv[4] when -s was also
passed.
Actually, the code already has a variable to handle that. This patch
simply uses it.
Signed-off-by: Greg Kurz <groug@kaod.org>
Message-Id: <149373610338.5144.9635049015143453288.stgit@bahia.lan>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
The default NetBSD package manager is pkgsrc and it installs Perl
along other third party programs under custom and configurable prefix.
The default prefix for binary prebuilt packages is /usr/pkg, and the
Perl executable lands in /usr/pkg/bin/perl.
This change switches "/usr/bin/perl" to "/usr/bin/env perl" as it's
the most portable solution that should work for almost everybody.
Perl's executable is detected automatically.
This change switches -w option passed to the executable with more
modern "use warnings;" approach. There is no functional change to the
default behavior.
Signed-off-by: Kamil Rytarowski <n54@gmx.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
Appease pkgsrc and use portable shell variable comparison.
This switches "==" to "=". It should not be a functional change.
Signed-off-by: Kamil Rytarowski <n54@gmx.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Laurent Vivier <lvivier@redhat.com>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
Use the existing readline history function we are utilizing
to provide persistent command history across instances of qmp-shell.
This assists entering debug commands across sessions that may be
interrupted by QEMU sessions terminating, where the qmp-shell has
to be relaunched.
Signed-off-by: John Snow <jsnow@redhat.com>
Message-Id: <20170427223628.20893-1-jsnow@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Kashyap Chamarthy <kchamart@redhat.com>
Tested-by: Kashyap Chamarthy <kchamart@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Rather than making lots of callers wrap a scalar in a QInt, QString,
or QBool, provide helper macros that do the wrapping automatically.
Update the Coccinelle script to make mass conversions easy, although
the conversion itself will be done as a separate patches to ease
review and backport efforts.
Signed-off-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20170427215821.19397-6-eblake@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
We have macros in place to make it less verbose to add a subtype
of QObject to both QDict and QList. While we have made cleanups
like this in the past (see commit fcfcd8ffc, for example), having
it be automated by Coccinelle makes it easier to maintain.
The script is separate from the cleanups, for ease of review and
backporting. A later patch will then add further possible cleanups.
Signed-off-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20170427215821.19397-4-eblake@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
but it'll come in the next pull request.
* use GDB XML register description for x86
* use _Static_assert in QEMU_BUILD_BUG_ON
* add "R:" to MAINTAINERS and get_maintainers
* checkpatch improvements
* dump threading fixes
* first part of vhost-user-scsi support
* QemuMutex tracing
* vmw_pvscsi and megasas fixes
* sgabios module update
* use Rev3 (ACPI 2.0) FADT
* deprecate -hdachs
* improve -accel documentation
* hax fix
* qemu-char GSource bugfix
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Merge remote-tracking branch 'bonzini/tags/for-upstream' into staging
A large set of small patches. I have not included yet vhost-user-scsi,
but it'll come in the next pull request.
* use GDB XML register description for x86
* use _Static_assert in QEMU_BUILD_BUG_ON
* add "R:" to MAINTAINERS and get_maintainers
* checkpatch improvements
* dump threading fixes
* first part of vhost-user-scsi support
* QemuMutex tracing
* vmw_pvscsi and megasas fixes
* sgabios module update
* use Rev3 (ACPI 2.0) FADT
* deprecate -hdachs
* improve -accel documentation
* hax fix
* qemu-char GSource bugfix
# gpg: Signature made Fri 05 May 2017 06:10:40 AM EDT
# gpg: using RSA key 0xBFFBD25F78C7AE83
# gpg: Good signature from "Paolo Bonzini <bonzini@gnu.org>"
# gpg: aka "Paolo Bonzini <pbonzini@redhat.com>"
# Primary key fingerprint: 46F5 9FBD 57D6 12E7 BFD4 E2F7 7E15 100C CD36 69B1
# Subkey fingerprint: F133 3857 4B66 2389 866C 7682 BFFB D25F 78C7 AE83
* bonzini/tags/for-upstream: (21 commits)
vhost-scsi: create a vhost-scsi-common abstraction
libvhost-user: replace vasprintf() to fix build
get_maintainer: add subsystem to reviewer output
get_maintainer: --r (list reviewer) is on by default
get_maintainer: it's '--pattern-depth', not '-pattern-depth'
get_maintainer: Teach get_maintainer.pl about the new "R:" tag
MAINTAINERS: Add "R:" tag for self-appointed reviewers
Fix the -accel parameter and the documentation for 'hax'
dump: Acquire BQL around vm_start() in dump thread
hax: Fix memory mapping de-duplication logic
checkpatch: Disallow glib asserts in main code
trace: add qemu mutex lock and unlock trace events
vmw_pvscsi: check message ring page count at initialisation
sgabios: update for "fix wrong video attrs for int 10h,ah==13h"
scsi: avoid an off-by-one error in megasas_mmio_write
vl: deprecate the "-hdachs" option
use _Static_assert in QEMU_BUILD_BUG_ON
target/i386: Add GDB XML register description support
char: Fix removing wrong GSource that be found by fd_in_tag
hw/i386: Build-time assertion on pc/q35 reset register being identical.
...
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
The UST trace backend can only cope with upto 10 arguments. To ensure we
don't exceed the limit when UST is not compiled in, disallow more than
10 arguments upfront.
This prevents the case where:
commit 0fc8aec7de
Author: Zhang Chen <zhangchen.fnst@cn.fujitsu.com>
Date: Tue Apr 18 10:20:20 2017 +0800
COLO-compare: Optimize tcp compare trace event
Optimize two trace events as one, adjust print format make
it easy to read. rename trace_colo_compare_pkt_info_src/dst
to trace_colo_compare_tcp_info.
regressed the fix done in
commit 2dfe5113b1
Author: Alex Bennée <alex.bennee@linaro.org>
Date: Fri Oct 28 14:25:59 2016 +0100
net: split colo_compare_pkt_info into two trace events
It seems there is a limit to the number of arguments a UST trace event
can take and at 11 the previous trace command broke the build. Split the
trace into a src pkt and dst pkt trace to fix this.
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-id: 20161028132559.8324-1-alex.bennee@linaro.org
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Now we get an immediate fail even when UST is disabled:
GEN net/trace.h
Traceback (most recent call last):
File "/home/berrange/src/virt/qemu/scripts/tracetool.py", line 154, in <module>
main(sys.argv)
File "/home/berrange/src/virt/qemu/scripts/tracetool.py", line 145, in main
events.extend(tracetool.read_events(fh))
File "/home/berrange/src/virt/qemu/scripts/tracetool/__init__.py", line 307, in read_events
event = Event.build(line)
File "/home/berrange/src/virt/qemu/scripts/tracetool/__init__.py", line 244, in build
event = Event(name, props, fmt, args)
File "/home/berrange/src/virt/qemu/scripts/tracetool/__init__.py", line 196, in __init__
"argument count" % name)
ValueError: Event 'colo_compare_tcp_info' has more than maximum permitted argument count
Makefile:96: recipe for target 'net/trace.h-timestamp' failed
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Message-id: 20170426153900.21066-1-berrange@redhat.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewer output currently does not include the subsystem
that matched. Add it.
Miscellanea:
o Add a get_subsystem_name routine to centralize this
Cherry picked from Linux commit 2a7cb1dc82fc2a52e747b4c496c13f6575fb1790.
Signed-off-by: Joe Perches <joe@perches.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
We don't consistenly document the default value next to the option
listing, but we do have a list of defaults here, so let's keep it up to
date.
Cherry picked from Linux commit 4f07510df2e8c47fd65b8ffaaf6c5d334d59d598.
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Though it appears that Perl's GetOptions will take either, the latter is
not documented in the options listing.
Cherry picked from Linux commit cc7ff0ef6eca3deeea4a424ca47a67c8450d5424.
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
We can now designate reviewers in the MAINTAINERS file with the new
"R:" tag, so this commit teaches get_maintainers.pl to add their
email addresses.
Cherry picked from Linux commit c1c3f2c906e35bcb6e4cdf5b8e077660fead14fe,
with fixes to avoid \C as in QEMU commit ba10f729f1 ("get_maintainer.pl:
\C is deprecated", 2015-09-25).
Signed-off-by: Joe Perches <joe@perches.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Glib commit a6a875068779 (from 2013) made many of the glib assert
macros non-fatal if a flag is set.
This causes two problems:
a) Compilers moan that your code is unsafe even though you've
put an assert in before the point of use.
b) Someone evil could, in a library, call
g_test_set_nonfatal_assertions() and cause our assertions in
important places not to fail and potentially allow memory overruns.
Ban most of the glib assertion functions (basically everything except
g_assert and g_assert_not_reached) except in tests/
This makes checkpatch gives an error such as:
ERROR: Use g_assert or g_assert_not_reached
#77: FILE: vl.c:4725:
+ g_assert_cmpstr("Chocolate", >, "Cheese");
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Message-Id: <20170427165526.19836-1-dgilbert@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Users can inherit from the simpletrace.Analyzer class and receive
callbacks when events of interest occur in a trace file. The method
signature is a little magic because the timestamp and pid arguments are
optional. Document this.
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Message-id: 20170411095654.18383-1-stefanha@redhat.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Since QEMU has been able to build with native Int128 support this was
broken as it attempts to fish values out of the non-existent
structure. Also the alias print was trying to make a %x out of
gdb.ValueType directly which didn't seem to work.
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Commit 0ab8ed18a6 ("trace: switch to
modular code generation for sub-directories") forgot to convert "tcg"
trace events to the modular code generation approach where each
sub-directory has its own trace-events file.
This patch fixes compilation for "tcg" trace events. Currently they are
only used in the root ./trace-events file.
"tcg" trace events can only be used in the root ./trace-events file for
the time being.
Reported-by: Peter Maydell <peter.maydell@linaro.org>
Tested-by: Emilio G. Cota <cota@braap.org>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-id: 20170327131718.18268-1-stefanha@redhat.com
Suggested-by: Emilio G. Cota <cota@braap.org>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Messed up in commit bc52d03.
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <1490015515-25851-3-git-send-email-armbru@redhat.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
When choking on a token where an expression is expected, we report
'Expected "{", "[" or string'. Close, but no cigar. Fix it to
Expected '"{", "[", string, boolean or "null"'.
Missed in commit e53188a.
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Message-Id: <1489582656-31133-48-git-send-email-armbru@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Message-Id: <1489582656-31133-47-git-send-email-armbru@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Message-Id: <1489582656-31133-46-git-send-email-armbru@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Message-Id: <1489582656-31133-45-git-send-email-armbru@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Message-Id: <1489582656-31133-44-git-send-email-armbru@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Message-Id: <1489582656-31133-43-git-send-email-armbru@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Message-Id: <1489582656-31133-42-git-send-email-armbru@redhat.com>
Don't invent a new dictionary structure just for enum_types, simply
store the defining expression, like we do for struct_types and
union_types.
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Message-Id: <1489582656-31133-41-git-send-email-armbru@redhat.com>
Missed in commit e98859a
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Message-Id: <1489582656-31133-40-git-send-email-armbru@redhat.com>
Move what's left in check_docs() to check_expr(). Delegate the actual
checking to new QAPIDoc.check_expr().
QAPIDoc.expr is now unused; drop it.
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Message-Id: <1489582656-31133-39-git-send-email-armbru@redhat.com>
check_definition_doc() checks for member documentation without a
matching member. It laboriously second-guesses what members
QAPISchema._def_exprs() will create. That's a stupid game.
Move the check into QAPISchema.check(), where the members are known.
Delegate the actual checking to new QAPIDoc.check().
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Message-Id: <1489582656-31133-38-git-send-email-armbru@redhat.com>
Results in a more precise error location, but the real reason is
emptying out check_docs() step by step.
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Message-Id: <1489582656-31133-35-git-send-email-armbru@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Message-Id: <1489582656-31133-34-git-send-email-armbru@redhat.com>
