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These warnings have been fixed.
Change-Id: I28ee5f4ae21412121849fcb9d273939d8e462842
Reviewed-on: https://gem5-review.googlesource.com/9344
Reviewed-by: Andreas Sandberg <andreas.sandberg@arm.com>
Maintainer: Gabe Black <gabeblack@google.com>
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Starting with version 3, scons imposes using the print function instead
of the print statement in code it processes. To get things building
again, this change moves all python code within gem5 to use the
function version. Another change by another author separately made this
same change to the site_tools and site_init.py files.
Change-Id: I2de7dc3b1be756baad6f60574c47c8b7e80ea3b0
Reviewed-on: https://gem5-review.googlesource.com/8761
Reviewed-by: Andreas Sandberg <andreas.sandberg@arm.com>
Reviewed-by: Jason Lowe-Power <jason@lowepower.com>
Maintainer: Gabe Black <gabeblack@google.com>
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Change backtrace implementation testing code not to have NULL pointer.
SCons fails to find backtrace implementation even if it exists.
The implementation testing code contains NULL pointers as a backtrace
buffer argument. Some compilers check the buffer is NULL pointed
or not, and generate a compilation error.
Change-Id: Icc5bc9a887b7a6bbc804b5b8a5a35a935c78a922
Reviewed-on: https://gem5-review.googlesource.com/7681
Reviewed-by: Gabe Black <gabeblack@google.com>
Maintainer: Gabe Black <gabeblack@google.com>
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This flag wasn't being used. Also move the Werror code to the
SConstruct now that it's being applied universally.
Change-Id: I18b00d4b41bc1add9271ca299c020c14970a6926
Reviewed-on: https://gem5-review.googlesource.com/5982
Reviewed-by: Andreas Sandberg <andreas.sandberg@arm.com>
Reviewed-by: Nikos Nikoleris <nikos.nikoleris@arm.com>
Maintainer: Andreas Sandberg <andreas.sandberg@arm.com>
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These settings are invariant, so there's no reason to apply them over
and over again for the child environments used for various build
products.
Change-Id: Icb4053105e4f1c43008f2422ba30c7206b7ff365
Reviewed-on: https://gem5-review.googlesource.com/5981
Reviewed-by: Andreas Sandberg <andreas.sandberg@arm.com>
Reviewed-by: Nikos Nikoleris <nikos.nikoleris@arm.com>
Maintainer: Andreas Sandberg <andreas.sandberg@arm.com>
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Change-Id: Ica08e93f3873a7eafd02fe7d44c3bdbf0ce7f6b7
Reviewed-on: https://gem5-review.googlesource.com/5565
Reviewed-by: Gabe Black <gabeblack@google.com>
Maintainer: Gabe Black <gabeblack@google.com>
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Make site_init.py manage sys.path, and the "default" tool set
PYTHONPATH on any environment that's created. The paths to add are
tracked in a common gem5_python_paths.py.
Change-Id: I3387d4394d47a2f9c83322644cfd05909c6890fa
Reviewed-on: https://gem5-review.googlesource.com/5564
Reviewed-by: Gabe Black <gabeblack@google.com>
Maintainer: Gabe Black <gabeblack@google.com>
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Put the code which supports style hooks for mercurial and git into two
scons "tools".
Change-Id: I3ffed85a177be4f9e458fff7b1cf16a3a479914e
Reviewed-on: https://gem5-review.googlesource.com/5563
Reviewed-by: Gabe Black <gabeblack@google.com>
Maintainer: Gabe Black <gabeblack@google.com>
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This imports various environment variables into the scons environment,
and sets some general properties on it. These are basically just copied
directly from the SConstruct and have the same behavior here.
gem5_tool_list will be used later on to add scons "tools" which should
be automatically added to new Environment objects.
Change-Id: Ib255955090c7b1e1cb80c703c18a9c867fcf1c9e
Reviewed-on: https://gem5-review.googlesource.com/5562
Reviewed-by: Gabe Black <gabeblack@google.com>
Maintainer: Gabe Black <gabeblack@google.com>
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In an effort to shrink and modularize the main scons files, this
change pulls the scons and python version checking code out of the
main file and into site_init.py which runs before the SConstruct
starts. This will be a place to put really generic code which has to
do with the very fundemental aspects of getting scons to work. Other
checks, like checks for particular tools or particular versions of
tools, will happen in other more specialized files.
Change-Id: Icd00ecadbe1141aef4dbadcf42d6ddef1f3a701f
Reviewed-on: https://gem5-review.googlesource.com/5561
Reviewed-by: Gabe Black <gabeblack@google.com>
Maintainer: Gabe Black <gabeblack@google.com>
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Originally it was possible to use a Bitmap writer class for dumping a
framebuffer snapshot in a .bmp file. This patch enables you to choose
another format. In particular it implements the writing of PNG Images
using libpng library. The latter has to be already installed in your
machine, otherwise gem5 will default to the Bitmap format. This
configurable writer has been introduced in the VNC frame dumping mechanism,
which is storing changed frame buffers from the VNC server
Change-Id: Id7e5763c82235f1ce90381c8486b85a7cce734ce
Reviewed-by: Andreas Sandberg <andreas.sandberg@arm.com>
Reviewed-on: https://gem5-review.googlesource.com/5181
Reviewed-by: Jason Lowe-Power <jason@lowepower.com>
Maintainer: Andreas Sandberg <andreas.sandberg@arm.com>
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Generating dependency/build product information in the isa parser breaks scons
idea of how a build is supposed to work. Arm twisting it into working forced
a lot of false dependencies which slowed down the build.
Change-Id: Iadee8c930fd7c80136d200d69870df7672a6b3ca
Reviewed-on: https://gem5-review.googlesource.com/5081
Reviewed-by: Jason Lowe-Power <jason@lowepower.com>
Maintainer: Gabe Black <gabeblack@google.com>
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Change-Id: Ic3652f975477f2e5d144e054489ab73ed9f82b55
Reviewed-on: https://gem5-review.googlesource.com/4440
Reviewed-by: Andreas Sandberg <andreas.sandberg@arm.com>
Reviewed-by: Gabe Black <gabeblack@google.com>
Reviewed-by: Jason Lowe-Power <jason@lowepower.com>
Reviewed-by: Joe Gross <joe.gross@amd.com>
Maintainer: Andreas Sandberg <andreas.sandberg@arm.com>
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Use named constants from a shared header instead of magic values when
handling pseudo ops.
Change-Id: If157060bbcd772ce7e8556482b44ca714f4319b1
Signed-off-by: Andreas Sandberg <andreas.sandberg@arm.com>
Reviewed-by: Nikos Nikoleris <nikos.nikoleris@arm.com>
Reviewed-on: https://gem5-review.googlesource.com/4262
Reviewed-by: Gabe Black <gabeblack@google.com>
Reviewed-by: Jason Lowe-Power <jason@lowepower.com>
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gcc has had a lot of problems with incremental linking and partial linking
at the same time. Basically, the partial link assumes that it's the only
link that's going to happen, and it converts weak external symbols into
regular external symbols. Then when the real final link happens, those
symbols are duplicated and the link fails.
Versions of gcc 6 and greater add an option called -flinker-output which
lets you tell the linker to do an incremental link. Unfortunately, other
bugs make that fail, and so gcc 6 doesn't work either. Hopefully version
7 works better.
A --force-lto option was added so that, when only one of lto and partial
linking is available, you can switch from having partial linking to having
lto.
Change-Id: I5e293f5cfb07a14343dc74030d99cb161fb8bbbe
Reviewed-on: https://gem5-review.googlesource.com/3680
Reviewed-by: Jason Lowe-Power <jason@lowepower.com>
Maintainer: Jason Lowe-Power <jason@lowepower.com>
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Fixes broken build after c58537c.
Change-Id: I686ffaaad4fe558b6e51c89c9b26121318c2b721
Signed-off-by: Jason Lowe-Power <jason@lowepower.com>
Reviewed-on: https://gem5-review.googlesource.com/3647
Reviewed-by: Gabe Black <gabeblack@google.com>
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The object is called EtherTap (as opposed to EtherTapStub, what the former
EtherTap was renamed to), and its existance is gated on the linux/if_tun.h
header file existing. That's probably overly strict, but it will hopefully
be minimally likely to break the build for other systems.
Change-Id: Ie03507fadf0d843a4d4d52f283c44a416c6f2a74
Reviewed-on: https://gem5-review.googlesource.com/3646
Reviewed-by: Nathan Binkert <nate@binkert.org>
Maintainer: Nathan Binkert <nate@binkert.org>
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The SConstruct currently expects all explicit targets to be under a
variant directory like ARM or X86 which tells it what settings to use,
etc. There are things which scons knows how to build however, which do not
live under a variant directory, specifically everything under ext.
This change makes scons not look for a variant directory when it
encounters a target which is built by something in ext. This enables
things like explicitly building the systemc libraries, for example.
Change-Id: I8982a96fe49e3cb970ec78e11cea08703990c686
Reviewed-on: https://gem5-review.googlesource.com/3460
Reviewed-by: Andreas Sandberg <andreas.sandberg@arm.com>
Reviewed-by: Christian Menard <christian.menard@tu-dresden.de>
Reviewed-by: Jason Lowe-Power <jason@lowepower.com>
Maintainer: Jason Lowe-Power <jason@lowepower.com>
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Now that the switching header implementation has been generalized, there's
no need to have two nearly identical implementations for the two different
groups of headers.
Change-Id: Ie7c24fcddbc672ac5ca2d69bfc35696f42c55580
Reviewed-on: https://gem5-review.googlesource.com/2984
Maintainer: Andreas Sandberg <andreas.sandberg@arm.com>
Reviewed-by: Curtis Dunham <curtis.dunham@arm.com>
Reviewed-by: Tony Gutierrez <anthony.gutierrez@amd.com>
Reviewed-by: Jason Lowe-Power <jason@lowepower.com>
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Factor out the ISA ness of the switching header generating function. Also
turn it into a SCons builder which builds a single header, and a wrapping
method which uses the builder on a group of header files which all target
the same subdirectory.
Change-Id: I87705f97b6ebd9baebd4ebcfea19cc1218a64ad0
Reviewed-on: https://gem5-review.googlesource.com/2983
Reviewed-by: Curtis Dunham <curtis.dunham@arm.com>
Reviewed-by: Jason Lowe-Power <jason@lowepower.com>
Maintainer: Jason Lowe-Power <jason@lowepower.com>
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This value can be computed more directly and more locally near where it's
used.
Change-Id: Ib5f45015494a6c8033ce0ac4b8931688f37492c8
Reviewed-on: https://gem5-review.googlesource.com/2982
Maintainer: Andreas Sandberg <andreas.sandberg@arm.com>
Reviewed-by: Curtis Dunham <curtis.dunham@arm.com>
Reviewed-by: Jason Lowe-Power <jason@lowepower.com>
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The value of that variable can be computed more directly and more locally
to where it's consumed.
Change-Id: I5ca1f732a34e22d4dae2aeb6ee7fc8adebe1caa0
Reviewed-on: https://gem5-review.googlesource.com/2981
Maintainer: Jason Lowe-Power <jason@lowepower.com>
Reviewed-by: Curtis Dunham <curtis.dunham@arm.com>
Reviewed-by: Jason Lowe-Power <jason@lowepower.com>
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It seems that g++ can generally handle the -r flag for generating a
relocatable object file, but ld can't always handle the --relocatable
flag.
Change-Id: I15f32e469590a814131d4e992b392a7ad6c52b83
Reviewed-on: https://gem5-review.googlesource.com/3001
Reviewed-by: Andreas Hansson <andreas.hansson@arm.com>
Reviewed-by: Andreas Sandberg <andreas.sandberg@arm.com>
Maintainer: Andreas Sandberg <andreas.sandberg@arm.com>
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Remove remaining SWIG support from the build infrastructure.
Change-Id: I7549cd0f952ca3a51481918eefef3a29f03af359
Signed-off-by: Andreas Sandberg <andreas.sandberg@arm.com>
Reviewed-by: Andreas Hansson <andreas.hansson@arm.com>
Reviewed-by: Curtis Dunham <curtis.dunham@arm.com>
Reviewed-on: https://gem5-review.googlesource.com/2920
Reviewed-by: Jason Lowe-Power <jason@lowepower.com>
Reviewed-by: Tony Gutierrez <anthony.gutierrez@amd.com>
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Use the PyBind11 wrapping infrastructure instead of SWIG to generate
wrappers for functionality that needs to be exported to Python. This
has several benefits:
* PyBind11 can be redistributed with gem5, which means that we have
full control of the version used. This avoid a large number of
hard-to-debug SWIG issues we have seen in the past.
* PyBind11 doesn't rely on a custom C++ parser, instead it relies on
wrappers being explicitly declared in C++. The leads to slightly
more boiler-plate code in manually created wrappers, but doesn't
doesn't increase the overall code size. A big benefit is that this
avoids strange compilation errors when SWIG doesn't understand
modern language features.
* Unlike SWIG, there is no risk that the wrapper code incorporates
incorrect type casts (this has happened on numerous occasions in
the past) since these will result in compile-time errors.
As a part of this change, the mechanism to define exported methods has
been redesigned slightly. New methods can be exported either by
declaring them in the SimObject declaration and decorating them with
the cxxMethod decorator or by adding an instance of
PyBindMethod/PyBindProperty to the cxx_exports class variable. The
decorator has the added benefit of making it possible to add a
docstring and naming the method's parameters.
The new wrappers have the following known issues:
* Global events can't be memory managed correctly. This was the
case in SWIG as well.
Change-Id: I88c5a95b6cf6c32fa9e1ad31dfc08b2e8199a763
Signed-off-by: Andreas Sandberg <andreas.sandberg@arm.com>
Reviewed-by: Andreas Hansson <andreas.hansson@arm.com>
Reviewed-by: Andrew Bardsley <andrew.bardsley@arm.com>
Reviewed-on: https://gem5-review.googlesource.com/2231
Reviewed-by: Tony Gutierrez <anthony.gutierrez@amd.com>
Reviewed-by: Pierre-Yves Péneau <pierre-yves.peneau@lirmm.fr>
Reviewed-by: Jason Lowe-Power <jason@lowepower.com>
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Change-Id: I52e4fc9ebf2f59da57d8cf8f3e37cc79598c2f5f
Signed-off-by: Andreas Sandberg <andreas.sandberg@arm.com>
Reviewed-by: Andreas Hansson <andreas.hansson@arm.com>
Reviewed-by: Curtis Dunham <curtis.dunham@arm.com>
Reviewed-on: https://gem5-review.googlesource.com/2229
Reviewed-by: Tony Gutierrez <anthony.gutierrez@amd.com>
Reviewed-by: Jason Lowe-Power <jason@lowepower.com>
Reviewed-by: Pierre-Yves Péneau <pierre-yves.peneau@lirmm.fr>
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These intermediate object files can be used to perform a hierarchical
link.
Change-Id: I27634731734eebe6531ce6b0894abdd59ffdc5c9
Reviewed-on: https://gem5-review.googlesource.com/2944
Reviewed-by: Andreas Sandberg <andreas.sandberg@arm.com>
Maintainer: Andreas Sandberg <andreas.sandberg@arm.com>
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Change-Id: I7ddba0cc7be559633328011c1c7e2282f509b78c
Reviewed-on: https://gem5-review.googlesource.com/2943
Reviewed-by: Andreas Sandberg <andreas.sandberg@arm.com>
Maintainer: Andreas Sandberg <andreas.sandberg@arm.com>
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The ext directories with SConscripts in them are easy to find
automatically. Avoid boilerplate listing them out and SConscript()ing
them manually.
Change-Id: Ib723882aebc00e639eb8ec44904bb05ffa2c6b55
Reviewed-on: https://gem5-review.googlesource.com/2942
Reviewed-by: Andreas Sandberg <andreas.sandberg@arm.com>
Maintainer: Andreas Sandberg <andreas.sandberg@arm.com>
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Due to the way SCons caches some file system state internally, it
sometimes "remembers" that a file or directory didn't exist at some
point. The git hook installation script sometimes needs to create a
hooks directory in the repository. Due to the cached state of the
hooks directory, the build system tries to create it twice. The second
mkdir operation leads to an error since the directory already exists.
Fix this issue by clearing the cached state of the hooks directory
after creating it.
Change-Id: I3f67f75c06ef928b439a0742f7619b7e92ed093b
Signed-off-by: Andreas Sandberg <andreas.sandberg@arm.com>
Reviewed-on: https://gem5-review.googlesource.com/2660
Reviewed-by: Gabe Black <gabeblack@google.com>
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When naively computing the relative path between the git hooks directory and a
hook we want to install, that will generally start with a few ".." path
components to work back out of the .git directory into the working directory.'
If the hooks directory is actually a symlink, then following ".." directory
entries won't get us back to where we came from, they'll take us to the actual
parent directory of hooks. The relative path we computed would then try to go
forward from this other directory using a path that would have worked in the
working directory, hopefully going somewhere that doesn't exist, but
potentially going to a totally unrelated file with the same relative path.
To avoid this problem, we should expand any symlinks in both the hooks
directory path, and the path to the hook script. That way, any ".." components
will go where we'd expect them to, and the relative path will actually go from
hooks to the script we expect.
Change-Id: I64d51bc817351f89b1d60eceaf450cc0a4553415
Reviewed-on: https://gem5-review.googlesource.com/2542
Reviewed-by: Jason Lowe-Power <jason@lowepower.com>
Reviewed-by: Andreas Sandberg <andreas.sandberg@arm.com>
Maintainer: Andreas Sandberg <andreas.sandberg@arm.com>
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If the hooks directory is a symlink, then there are at least two possible
scenarios to consider when installing a hook which is itself a symlink. The
first is that hooks is a relative symlink, and so is likely intended to stay
in place relative to .git and the git working directory. In that case, it's ok
for the symlinks inside of hooks to be relative to the working directory too,
since they should also stay in place relatively speaking.
The second situation is that the symlink is absolute. In that case, moving the
git working directory will move the hook relative to the hook directory, and
any relative symlink will become broken. In that case, the hook symlink needs
to be absolute.
The same logic likely applies to the .git directory itself, although I haven't
run into a situation in practice where the .git directory is actually a
symlink.
Change-Id: I047aa198094dd0fd5a841417d93b211ece02783f
Reviewed-on: https://gem5-review.googlesource.com/2541
Reviewed-by: Andreas Sandberg <andreas.sandberg@arm.com>
Maintainer: Andreas Sandberg <andreas.sandberg@arm.com>
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When installing a git hook, it's possible for the hook to not "exist" if it's
actually a symlink which points to a file that doesn't exist. Trying to create
a new symlink in its place without first removing the old one causes a build
failure in these cases.
If the hook doesn't "exist" but is still a link, that means it's actually a
broken link and should be deleted by the hook installation function before any
new symlink is created.
Change-Id: I59aa51feb5bd74ca33e51e89cde2ceabeb41bd76
Reviewed-on: https://gem5-review.googlesource.com/2540
Reviewed-by: Jason Lowe-Power <jason@lowepower.com>
Reviewed-by: Andreas Sandberg <andreas.sandberg@arm.com>
Maintainer: Andreas Sandberg <andreas.sandberg@arm.com>
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Change-Id: I71d07fc64bdb3c6c3e93e2a1fd358cc899a70678
Reviewed-on: https://gem5-review.googlesource.com/2500
Reviewed-by: Jason Lowe-Power <jason@lowepower.com>
Maintainer: Jason Lowe-Power <jason@lowepower.com>
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Gerrit requires that all commit messages have a Change-Id tag. This
tag is added automatically by a commit message hook in Git. Include
the default Gerrit commit message hook and add it automatically using
scons to make life easier for everyone.
Change-Id: I1270fbaaadf6ed151bddf14521a38e0c1a02d131
Signed-off-by: Andreas Sandberg <andreas.sandberg@arm.com>
Reviewed-on: https://gem5-review.googlesource.com/2166
Reviewed-by: Jason Lowe-Power <power.jg@gmail.com>
Maintainer: Jason Lowe-Power <power.jg@gmail.com>
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Various changes we found needed to build gem5 successfully on
FreeBSD.
Reviewed at http://reviews.gem5.org/r/3378/
Signed-off-by: Jason Lowe-Power <jason@lowepower.com>
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the GPUCoalescer code is used in the ruby profiler regardless of
whether or not the coalescer code has been compiled, which can
lead to link/run time errors. here we add #ifdefs to guard the
usage of GPUCoalescer code. eventually we should refactor this
code to use probe points.
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After reaching consensus on the mailing list, this patch officially
makes gcc 4.8 the minimum.
A few checks in the SConstruct are cleaned up as a result. This patch
also adds "-fno-omit-frame-pointer" when using ASAN (which is part of
the gcc/clang recommended flags).
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---
SConstruct | 4 ++++
1 file changed, 4 insertions(+)
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The SCons script currently assumes that .git is a proper directory
with all git meta data. This isn't the case if the working directory
was checked out using git worktrees. In such case .git is a file with
meta data telling git where the repository data is stored.
This changeset updates changes the SConstruct file to rely on git
rev-parse to get the real git directory.
Change-Id: I3d0475eabc12e868193797067a88e540a9b6e927
Signed-off-by: Andreas Sandberg <andreas.sandberg@arm.com>
Reviewed-by: Curtis Dunham <curtis.dunham@arm.com>
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Change-Id: Ied2e018a9a1b6db446edbaac871ac4efd795ec36
Reviewed-by: Andreas Sandberg <andreas.sandberg@arm.com>
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Don't use Python 2.7-style with statements in the SConstruct file.
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Add a check in the main SConscript that installs the git pre-commit
hook in util/ if git is used.
Signed-off-by: Andreas Sandberg <andreas.sandberg@arm.com>
Reviewed-by: Curtis Dunham <curtis.dunham@arm.com>
[andreas.sandberg@arm.com: Cleanups suggested by Steve]
Reviewed-by: Steve Reinhardt <steve.reinhardt@amd.com>
--HG--
extra : rebase_source : 4b805cdd74bc5442a65abf8a62e3e341f352c04e
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The Mercurial style checker extensions are currently stored in
style.py. This is not ideal since they won't work with other version
control systems. This changeset renames style.py to hgstyle.py and
adds upgrade code to scons that automatically updates the hooks in
hgrc.
Signed-off-by: Andreas Sandberg <andreas.sandberg@arm.com>
Reviewed-by: Nikos Nikoleris <nikos.nikoleris@arm.com>
Reviewed-by: Curtis Dunham <curtis.dunham@arm.com>
Reviewed-by: Nathanael Premillieu <nathananel.premillieu@arm.com>
Reviewed-by: Steve Reinhardt <steve.reinhardt@amd.com>
--HG--
rename : util/style.py => util/hgstyle.py
extra : rebase_source : ee8107ef245901371b368b7c2046ecdd89e3ff4c
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Allow the user to easily build gem5 with the Address Sanitizer, part
of both gcc and clang these days.
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Make best use of the compiler, and enable -Wextra as well as
-Wall. There are a few issues that had to be resolved, but they are
all trivial.
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This patch replaces the gzstream zlib wrapper with the iostream3
wrapper provided as part of zlib contributions. The main reason for
the switch is to avoid including LGPL in the default gem5
build. iostream3 is provided under a more permissive license:
The code is provided "as is", with the permission to use, copy,
modify, distribute and sell it for any purpose without fee.
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Add functionality to generate a back trace if gem5 crashes (SIGABRT or
SIGSEGV). The current implementation uses glibc's stack traversal
support if available and stubs out the call to print_backtrace()
otherwise.
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