Because most files in QEMU are grouped into static libraries, Meson conservatively
compiles them with -fPIC. This is overkill and produces slowdowns up to 20% on
some TCG tests.
As a stopgap measure, use the b_staticpic option to limit the slowdown to
--enable-pie. https://github.com/mesonbuild/meson/pull/7760 will allow
us to use b_staticpic=false and let Meson do the right thing.
Reported-by: Ahmed Karaman <ahmedkrmn@outlook.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20200924092314.1722645-57-pbonzini@redhat.com>
Message-Id: <20201007160038.26953-2-alex.bennee@linaro.org>
Unlike other OSs it is not possible for gdb to temporarily disable ASLR when
debugging executables on Windows which causes gdb to fail with memory access
errors when trying to debug QEMU.
Keep ASLR enabled by default on Windows via the --dynamicbase compiler flag
except for --enable-debug builds when there is a clear expectation that a
functioning gdb is expected at the cost of slightly less security.
Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Message-Id: <20201005133434.12614-1-mark.cave-ayland@ilande.co.uk>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Environment variables like CFLAGS are easy to accidentally change. Meson
warns if that happens, but in a project with a lot of configuration that
is easy to lose. It is also surprising behavior since meson caches -D
options and remembers those on reconfiguration (which we rely on,
since configure options become -D options).
By placing the user-provided CFLAGS, CXXFLAGS and LDFLAGS in the
cross file, we at least get consistent behavior. These environment
variables are still ugly and not really recommended, but there are
distros that rely on them. For the gory details, refer to
https://github.com/mesonbuild/meson/issues/4664.
Tested-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Message-Id: <20200923092617.1593722-5-pbonzini@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
If the CFLAGS, CXXFLAGS or LDFLAGS variables are present in the environment,
any modification made within the configure script is passed down to Meson.
This is particularly undesirable for the "-pie" option, since it overrides
"-shared" and thus messes up the linker flags for shared modules.
Using a separate variable therefore fixes the bug, while clarifying that
the scope of these CFLAGS is just the configure script.
We also do not need to pass those variables in config-host.mak; they
were only used for printing the summary now that all submodules are
built with handwritten Meson rules). For now synthesize CFLAGS in the
configuration summary, the next patch will also pass them in a cleaner
way using the cross file.
Reported-by: Frederic Bezies
Analyzed-by: Toolybird
Tested-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Message-Id: <20200923092617.1593722-4-pbonzini@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Build the library via the main meson.build just like for capstone.
This improves the current state of affairs in that we will re-link
the qemu executables against a changed libfdt.a, which we wouldn't
do before-hand, and lets us remove the whole recursive make machinery.
Tested-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
SLIRP uses Meson so it could become a subproject in the future,
but our choice of configure options is not yet supported in Meson
(https://github.com/mesonbuild/meson/pull/7740).
For now, build the library via the main meson.build just like for
capstone.
This improves the current state of affairs in that we will re-link
the qemu executables against a changed libslirp.a, which we wouldn't
do before-hand.
Tested-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Pass the path to the program to scripts/check_sparse.py, which
previously was not included in config-host.mak. Change
scripts/check_sparse.py to work with cgcc, which seems to
work better with sparse 0.6.x.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
We no longer need dummy files to detect targets, since
default-configs/targets/ exists.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
The config-target.mak files are small constant, we can therefore just
write them down explicitly.
This removes a pretty large part of the configure script, including the
whole logic to detect which accelerators are supported by each target.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Omit symbols that are not needed by softmmu or bsd-user targets,
in preparation for moving the generated config-target.mak files
into the source tree.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Several CONFIG_* symbols in config-target.mak are easily computed from just
the target name. We do not need them in config-target.mak, and can instead
place them in the config_target dictionary only.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Move to meson the code to detect the presence of accelerators, and
to define accelerator-specific config-target.h symbols.
The logic for now is duplicated in configure because it is still
in use to build the list of targets (which is in turn used to
create the config-target.mak files). The next patches remove it.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Prepare to process "auto" in meson rather than configure: standardize the
shape of the code that changes "auto" to enabled/disabled, to ease the review
when it will be moved to meson.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Prepare for moving the tests to meson. For now they only have
enabled/disabled as the possible values when meson is invoked,
but "auto" will be a possibility later, when configure will only
parse the command line options.
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Make room for target files in default-configs/targets/
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
There are better ways to do this, e.g. meson cmake subproject,
but that requires cmake 3.7 and some of our CI environments
only provide cmake 3.5.
Nor can we add a meson.build file to capstone/, because the git
submodule would then always report "untracked files". Fixing that
would require creating our own branch on the qemu git mirror, at
which point we could just as easily create a native meson subproject.
Instead, build the library via the main meson.build.
This improves the current state of affairs in that we will re-link
the qemu executables against a changed libcapstone.a, which we wouldn't
do before-hand. In addition, the use of the configuration header file
instead of command-line -DEFINES means that we will rebuild the
capstone objects with changes to meson.build.
Acked-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
All our supported build platforms have Python 3.6 or newer nowadays, and
there are some useful features in Python 3.6 which are not available in
3.5 yet (e.g. the type hint annotations which will allow us to statically
type the QAPI parser), so let's bump the minimum Python version to 3.6 now.
Signed-off-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20200923162908.95372-1-thuth@redhat.com>
Message-Id: <20200925154027.12672-16-alex.bennee@linaro.org>
Now that the installation is relocatable, there is no need to compile a
Windows-format prefix into Win32 binaries. Instead, the prefix will
only be used to compute installation-relative paths, and it can be
any string.
Drop the "Program Files" path completely: it is only usable on English
versions of Windows; therefore, using the NSIS installer to get the
"correct" path to the Program Files folder is recommended, and NSIS
works just as well with any prefix.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Because the target/i386/hvf/meson.build rule culls hvf support
on non-Darwin systems, a --enable-hvf build is succeeding.
To fix this, just try the compilation test every time someone
passes --enable-hvf.
Reported-by: Christophe de Dinechin <dinechin@redhat.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
While detection of the framework was already there, moving
the option allows for better error reporting.
Reported-by: Christophe de Dinechin <dinechin@redhat.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Due to a cut-and-paste error, the path to a user-specified meson
was ignored and replaced by whatever was in the path.
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Because LIBS is not used anymore, tcmalloc/jemalloc does
not work with binaries whose description is in Meson.
The fix is simply to move them to Meson too.
For consistency with other configure options, specifying
--enable-malloc-trim together with --enable-{tc,je}malloc
becomes a fatal error.
Reported-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This is the first compiler/linker test that has been moved to Meson.
Add more section headings to keep things clearer.
This also fixes static linking to libmpathpersist, which has a
dependency on libmultipath but no pkg-config file to describe it.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
The QEMU_GA_MSI_ENABLED config-host.mak variable is emitted by
./configure. meson.build actually checks for CONFIG_QGA_MSI_ENABLED:
summary_info += {'QGA MSI support': config_host.has_key('CONFIG_QGA_MSI_ENABLED')}
Rename QEMU_GA_MSI_ENABLED to CONFIG_QGA_MSI for consistency with
CONFIG_QGA_VSS. Also use 'y' instead of 'yes' for consistency.
This fixes the feature summary printed by meson.build.
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-Id: <20200914095231.621068-4-stefanha@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Hyper-V is available on 64-bit versions of Windows,
do not try to build its support on 32-bit versions.
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20200910054516.405777-1-f4bug@amsat.org>
Reviewed-by: Stefan Weil <sw@weilnetz.de>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
We don't need the texinfo and pod2man programs to build our documentation
any more, so remove them from configure's tests.
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Message-Id: <20200925162316.21205-21-peter.maydell@linaro.org>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Following the same logic as for vhost-net-user and vhost-kernel,
enable vhost-net if vhost-net-vdpa is enabled and vhost-net is not
explicitly disabled.
See 299e6f19b3 ("vhost-net: revamp configure logic")
Autoselect VHOST if VHOST_VDPA is set
See 21c6b0c87e ("configure: simplify vhost condition with Kconfig")
See 2becc36a3e ("meson: infrastructure for building emulators"
Problems can be triggered using;
... --enable-vhost-vdpa --disable-vhost-user --disable-vhost-kernel ...
Fixes: 108a64818e ("vhost-vdpa: introduce vhost-vdpa backend")
Cc: lulu@redhat.com
Cc: pbonzini@redhat.com
Cc: marcandre.lureau@redhat.com
Signed-off-by: Laurent Vivier <lvivier@redhat.com>
Message-Id: <20200924210023.160679-1-lvivier@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Acked-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
I found that there are many spelling errors in the comments of qemu,
so I used the spellcheck tool to check the spelling errors
and finally found some spelling errors in the folder.
Signed-off-by: zhaolichang <zhaolichang@huawei.com>
Reviewed-by: Alex Bennee <alex.bennee@linaro.org>
Message-Id: <20200917075029.313-2-zhaolichang@huawei.com>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
While we are at it move the few places where they are into the
deprecation build bucket.
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20200915134317.11110-9-alex.bennee@linaro.org>
The target is already marked as deprecated in the documentation.
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20200915134317.11110-7-alex.bennee@linaro.org>
Rather than sed and loop just do a grep.
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20200915134317.11110-6-alex.bennee@linaro.org>
Now the user has to make an even more deliberate decision to
enable a deprecated target rather than getting it as a side effect of
using --target-exclude-list.
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20200915134317.11110-5-alex.bennee@linaro.org>
This is the common point at which we validate targets so it makes
sense to add_to deprecated_features here. It will make future target
deprecation easier as we only need to tweak one list.
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20200915134317.11110-4-alex.bennee@linaro.org>
We deprecated the support for KVM on 32-bit Arm hosts in time
for release 5.0, which means that our deprecation policy allows
us to drop it in release 5.2. Remove the code.
To repeat the rationale from the deprecation note: the Linux
kernel dropped support for 32-bit Arm KVM hosts in 5.7.
Running 32-bit guests on a 64-bit Arm host remains supported.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-id: 20200904154156.31943-2-peter.maydell@linaro.org
We have an exploding complexity problem in the testing so lets just
move the more involved plugins into contrib. tests/plugins still exist
for the basic plugins that exercise the API. We restore the old
pre-meson style Makefile for contrib as it also doubles as a guide for
out-of-tree plugin builds.
While we are at it add some examples to the documentation and a
specific plugins build target.
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20200909112742.25730-11-alex.bennee@linaro.org>
The user can still enable this explicitly but they will get a warning
at the end of configure for their troubles. This also drops any builds
of ppc64abi32 from our CI tests.
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20200909112742.25730-7-alex.bennee@linaro.org>
Cleanup and fill in VMStateDescription.
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Merge remote-tracking branch 'remotes/rth/tags/pull-mb-20200907-2' into staging
Use lookup_and_goto_tb.
Cleanup and fill in VMStateDescription.
# gpg: Signature made Mon 07 Sep 2020 21:01:55 BST
# gpg: using RSA key 7A481E78868B4DB6A85A05C064DF38E8AF7E215F
# gpg: issuer "richard.henderson@linaro.org"
# gpg: Good signature from "Richard Henderson <richard.henderson@linaro.org>" [full]
# Primary key fingerprint: 7A48 1E78 868B 4DB6 A85A 05C0 64DF 38E8 AF7E 215F
* remotes/rth/tags/pull-mb-20200907-2:
configure: Do not set TARGET_ABI32 for microblaze
target/microblaze: Put MicroBlazeCPUConfig into DisasContext
target/microblaze: Fill in VMStateDescription for cpu
target/microblaze: Move mmu parameters to MicroBlazeCPUConfig
target/microblaze: Treat pvr_regs as constant
target/microblaze: Move pvr regs to MicroBlazeCPUConfig
target/microblaze: Reorg MicroBlazeCPUConfig to minimize holes
target/microblaze: Split out MicroBlazeCPUConfig
target/microblaze: Diagnose invalid insns in delay slots
target/microblaze: Use tcg_gen_lookup_and_goto_ptr
target/microblaze: Force rtid, rted, rtbd to exit
target/microblaze: Handle DISAS_EXIT_NEXT in delay slot
target/microblaze: Replace cpustate_changed with DISAS_EXIT_NEXT
target/microblaze: Introduce DISAS_EXIT_NEXT, DISAS_EXIT_JUMP
target/microblaze: Rename DISAS_UPDATE to DISAS_EXIT
target/microblaze: Rename mmu structs
target/microblaze: Cleanup mb_cpu_do_interrupt
target/microblaze: Renumber D_FLAG
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
On oss-fuzz, we must use the LIB_FUZZING_ENGINE and CFLAGS environment
variables, rather than -fsanitize=fuzzer. With this change, when
LIB_FUZZING_ENGINE is set, the --enable-fuzzing configure option will
use that environment variable during the linking stage, rather than
-fsanitize=fuzzer
Signed-off-by: Alexander Bulekov <alxndr@bu.edu>
Message-Id: <20200902173652.307222-3-alxndr@bu.edu>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Update the dtc submodule in configure already and symlink dtc after
git submodule update, because on win32 symlinks to non-existing folders
are forbidden.
Signed-off-by: Yonggang Luo <luoyonggang@gmail.com>
Message-Id: <20200902170054.810-2-luoyonggang@gmail.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
All Meson executables should specify their dependencies explicitly, either
directly or indirectly via declare_dependency. Makefiles instead did
not propagate dependencies correctly from static libraries, for example.
Therefore, flags for dependencies need not be included in QEMU_CFLAGS.
LIBS is not used at all, so drop that one as well.
In a few cases the dependencies were not yet specified, so add them.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
The opengl compilation flags were added to QEMU_CFLAGS. We do not
want them to be added to all compilation commands, so export them
also via OPENGL_CFLAGS rather than via QEMU_CFLAGS.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
The glib compilation flags were added to QEMU_CFLAGS. While we still
want them to be added to all compilation commands (at least for now),
do that via GLIB_CFLAGS rather than via QEMU_CFLAGS. This shows that
glib is a special case and makes it clearer that QEMU_CFLAGS is only
about compiler commands and not dependencies.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
