| Commit message (Collapse) | Author | Age | Files | Lines |
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This patch fixes the wrong -march name option used to define
the ARMv7-A glibc variant pushed on commit 3d26560.
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This patch adds two extra configuration for arm-linux-gnueabihf to
cover for multiarch support:
1. arm-linux-gnueabihf-v7a: enables multiarch support by using
-march=armv7a.
2. Same as 1. but with --disable-multiarch.
Check with build-many-glibcs.py for both options.
* scripts/build-many-glibcs.py (Context.add_all_configs):
Add arm-linux-gnueabihf multiarch extra_glibcs.
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glibc has an add-ons mechanism to allow additional software to be
integrated into the glibc build. Such add-ons may be within the glibc
source tree, or outside it at a path passed to the --enable-add-ons
configure option.
localedata and crypt were once add-ons, distributed in separate
release tarballs, but long since stopped using that mechanism.
Linuxthreads was always an add-on. Ports spent some time as an add-on
with separate release tarballs, then was first moved into the glibc
source tree, then had its sysdeps files moved into the main sysdeps
hierarchy so the add-ons mechanism was no longer used. NPTL spent
some time as an add-on in the main glibc tree before stopping using
the add-on mechanism. libidn used to have separate release tarballs
but no longer does so, but still uses the add-ons mechanism within the
glibc source tree. Various other software has supported building with
the add-ons mechanism at times in the past, but I don't think any is
still widely used.
Add-ons involve significant, little-used complexity in the glibc build
system, and make it hard to understand what the space of possible
glibc configurations is. This patch removes the add-ons mechanism.
libidn is now built via the Subdirs mechanism to cause any
configuration using sysdeps/unix/inet to build libidn; HAVE_LIBIDN
(which effectively means shared libraries are available) is now
defined via sysdeps/unix/inet/configure. Various references to
add-ons around the source tree are removed (in the case of maint.texi,
the example list of sysdeps directories is still very out of date).
Externally maintained ports should now put their files in the normal
sysdeps directory structure rather than being arranged as add-ons;
they probably need to change e.g. elf.h anyway, rather than actually
being able to work just as a drop-in subtree. Hurd libpthread should
be arranged similarly to NPTL, so some files might go in a
hurd-pthreads (or similar) top-level directory in glibc, while sysdeps
files should go in the normal sysdeps directory structure (possibly in
hurd or hurd-pthreads subdirectories, just as there are nptl
subdirectories in the sysdeps tree).
Tested for x86_64, and with build-many-glibcs.py.
* configure.ac (--enable-add-ons): Remove option.
(machine): Do not mention add-ons in comment.
(LIBC_PRECONFIGURE): Likewise.
(add_ons): Remove variable and sanity checks and logic to locate
add-ons.
(add_ons_automatic): Remove variable.
(configured_add_ons): Likewise.
(add_ons_sfx): Likewise.
(add_ons_pfx): Likewise.
(add_on_subdirs): Likewise.
(sysnames_add_ons): Likewise. Remove loop over add-ons and
consideration of add-ons in Implies handling.
(sysdeps_add_ons): Likewise.
* configure: Regenerated.
* libidn/configure.ac: Remove.
* libidn/configure: Likewise.
* sysdeps/unix/inet/configure.ac: New file.
* sysdeps/unix/inet/configure: New generated file.
* sysdeps/unix/inet/Subdirs: Add libidn.
* Makeconfig (sysdeps-srcdirs): Remove variable.
(+sysdep_dirs): Do not include $(sysdeps-srcdirs).
($(common-objpfx)config.status): Do not depend on add-on files.
($(common-objpfx)shlib-versions.v.i): Do not mention add-ons in
comment.
(all-subdirs): Do not include $(add-on-subdirs).
* Makefile (dist-prepare): Do not use $(sysdeps-add-ons).
* config.make.in (add-ons): Remove variable.
(add-on-subdirs): Likewise.
(sysdeps-add-ons): Likewise.
* manual/Makefile (add-chapters): Remove.
($(objpfx)texis): Do not depend on $(add-chapters).
(nonexamples): Do not handle $(add-chapters).
(examples): Do not handle $(add-ons).
(chapters.% top-menu.%): Do not pass '$(add-chapters)' to
libc-texinfo.sh.
* manual/install.texi (Installation): Do not mention add-ons.
(--enable-add-ons): Do not document configure option.
* INSTALL: Regenerated.
* manual/libc-texinfo.sh: Do not handle $2 add-ons argument.
* manual/maint.texi (Hierarchy Conventions): Do not mention
add-ons.
* scripts/build-many-glibcs.py (Glibc.build_glibc): Do not use
--enable-add-ons.
* scripts/gen-sorted.awk: Do not handle Subdirs files from
add-ons.
* scripts/test-installation.pl: Do not handle glibc-compat add-on.
* sysdeps/nptl/Makeconfig: Do not mention add-ons in comment.
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* scripts/build-many-glibcs.py (Context.checkout): Default MPFR
version to 3.1.6.
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* scripts/build-many-glibcs.py (Context.checkout): Default Linux
kernel version to 4.13.
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This patch updates build-many-glibcs.py to use the current release
branch of binutils and current releases of GMP and the Linux kernel.
* scripts/build-many-glibcs.py (Context.checkout): Default
binutils version to 2.29 branch, GMP version to 6.1.2 and Linux
kernel version to 4.12.
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* scripts/build-many-glibcs.py (Context.checkout): Default Linux
kernel version to 4.11.
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Now there is a GCC 7 release branch, this patch makes
build-many-glibcs.py default to using it instead of GCC 6.
Relative to GCC 6, this fixes the MicroBlaze build but introduces ICEs
building glibc testcases for SH (GCC PRs 78459, 78460; the latter is
an out-of-memory issue so you may want to set memory limits when
running build-many-glibcs.py).
* scripts/build-many-glibcs.py (Context.checkout): Default gcc
version to 7 branch.
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Now with d40dbe7 SH build does not require more the no_isolate gcc
options to correct build glibc (since SH build now does not generate
a trap anymore). This patch removes the unrequired options from
SH config.
Checked with a build for sh3-linux-gnu, sh3eb-linux-gnu, sh4-linux-gnu,
and sh4eb-linux-gnu.
* scripts/build-many-glibcs.py (Context.add_all_configs): Remove
no_isolate usage for SH.
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* scripts/build-many-glibcs.py (Context.checkout): Default Linux
kernel version to 4.10.
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The 'bot-cycle' action for build-many-glibcs is a convenient way to
not have to remember all the steps in keeping a many-glibcs tree up
to date ... or it would be, if the script could send mail _optionally_.
Make it so by skipping the mail step if mail isn't configured.
* scripts/build-many-glibcs.py (bot_build_mail): If the
bot_config does not contain all of the necessary email-
related settings, just print a warning and continue.
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A recent build-many-glibcs.py build
<https://sourceware.org/ml/libc-testresults/2017-q1/msg00067.html> ran
into what proves to be an old known bug
<https://gcc.gnu.org/bugzilla/show_bug.cgi?id=42980> with parallel
install of GCC (one which as discussed there might require automake
changes to fix). This patch makes build-many-glibcs.py avoid such
intermittent failures from parallel install by using -j1 for GCC make
install (the code in question also applies to binutils make install,
but it doesn't seem worth trying to avoid -j1 there; the builds and
installs of different toolchains are still fully parallel with each
other, this is only about the case when there are few enough of those
that multiple jobs can get used within a single make install).
* scripts/build-many-glibcs.py (Config.build_cross_tool): Use -j1
for make install.
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I used this patch to run the new build script with python3.2, it may be worth
adding this hack if python3.5 is not widespread (might work with older python,
i haven't tested that).
This patch make build-many-glibcs.py work with python 3.2 by
adding fallback implementation to python 3.5 facilities if they
are not present.
Checked building a x86_64-linux-gnu toolchain with python 3.2.
2016-11-22 Szabolcs Nagy <szabolcs.nagy@arm.com>
* scripts/build-many-glibcs.py (os.cpu_count): Add compatibility definition.
(re.fullmatch, subprocess.run): Likewise.
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The 32-bit powerpc configurations in build-many-glibcs.py were failing
to cover the powerpc32 multiarch code at all, because that code is
only built for power4 and above configurations. This patch adds a
32-bit power4 configuration so that at least some of that multiarch
code gets build-tested. (This is preparation for reviewing the w_*
file renaming, which affects such powerpc32 multiarch files.)
* scripts/build-many-glibcs.py (Context.add_all_configs): Add
power4 glibc for powerpc-linux-gnu.
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Now that a release branch exists for binutils 2.28, this patch makes
build-many-glibcs.py use that by default in place of 2.27.
* scripts/build-many-glibcs.py (Context.checkout): Default
binutils version to 2.28 branch.
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When build-many-glibcs.py re-execs itself with execv, any buffered
output on stdout may be lost (in particular, messages intended to go
to a bot's log about the re-exec taking place). This patch makes it
flush stdout before execv, similar to the flush before running a
subprocess from the bot that is done to ensure output appears in the
right order.
* scripts/build-many-glibcs.py (Context.exec_self): Flush stdout
before calling execv.
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This patch updates build-many-glibcs.py to use Linux 4.9 for kernel
headers unless another version is explicitly specified. Note that
when a version changes like this you'll need to use --replace-sources
when updating an existing checkout to tell build-many-glibcs.py it's
OK to delete and replace the sources of a component for which the
version used has changed.
* scripts/build-many-glibcs.py (Context.checkout): Default Linux
kernel version to 4.9.
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This patch adds a --strip option to build-many-glibcs.py, to make it
strip the installed shared libraries after installation. This is for
convenience if you want to compare installed stripped shared libraries
before and after a patch that was not meant to result in any code
changes: you can run with this option, copy the install/glibcs
directory, run again with the patch and compare the */lib*
subdirectory contents.
(It might make sense for the option to strip libraries in other
directories, including stripping debug information from static
libraries, with a view to making it possible for a
no-generated-code-changes patch to result in completely identical
install/glibcs directories, so simplifying comparison, though that may
need other build determinism changes, e.g. to build deterministic .a
files.)
* scripts/build-many-glibcs.py (Context.__init__): Take strip
argument.
(Glibc.build_glibc): Strip installed shared libraries if
requested.
(get_parser): Add --strip option.
(main): Update Context call.
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This patch makes build-many-glibcs.py support a "bot" action, for
repeatedly running a checkout and build cycle.
Two new configuration variables are used in bot-config.json. "delay"
indicates the time to sleep after each bot-cycle round (regardless of
whether that round actually ran any builds); "run" is a boolean, which
is false if the bot should just exit (the point of this is that you
can edit bot-config.json to set this to false to cause a running bot
to exit cleanly between builds) and true if the bot should run. The
bot does not exit if the bot-cycle process exits with error status
(that can occur when sourceware's load limiting means anonymous
version control access fails, for example), just sleeps until it's
time to try again.
The script is changed to flush stdout before running a subprocess in
bot-cycle, so that when output is redirected (as expected for a bot)
the status messages from bot-cycle appear in their proper position in
its redirected output relative to the output from the subprocesses
run, and to copy the logs directory before running builds in bot-cycle
so that the logs from at least one complete build are always available
for looking at how something failed, even while the next build is
running.
* scripts/build-many-glibcs.py: Add bot to usage message. Import
time module.
(Context.__init__): Initialize self.logsdir_old.
(Context.run_builds): Handle bot action.
(Context.bot_cycle): Copy logs directory before running builds.
(Context.bot_run_self): Take argument for whether to check
subprocess result. Flush stdout before running subprocess.
(Context.bot): New function.
(get_parser): Allow bot action.
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This patch continues the process of setting up build-many-glibcs.py to
run as a bot monitoring for and reporting on build issues by adding a
bot-cycle action to the script. When this action is used, it will run
the checkout action (re-execing itself if it was changed by that
action), then rebuild whichever of host-libraries, compilers, glibcs
should be rebuilt based on changed versions, time elapsed and state of
previous builds. Email is sent with the results of the build (for
each build action done).
The rebuild logic is: if previous build time or versions aren't
recorded, rebuild that component. If the script has changed, rebuild
everything. If any relevant component version has changed, rebuild,
except for not rebuilding compilers if the time indicated in the bot
configuration has not passed since the last build of the compilers.
If one piece is rebuilt then rebuild subsequent pieces as well.
Using bot-cycle requires a configuration file bot-config.json in the
toplevel directory used by build-many-glibcs.py. It might contain
e.g.
{
"compilers-rebuild-delay": 604800,
"email-from": "Example Name <user@example.org>",
"email-server": "localhost",
"email-subject": "GCC 6 %(action)s %(build-time)s build results",
"email-to": "libc-testresults@sourceware.org"
}
My next intended step is adding a further action "bot" which loops
running bot-cycle then sleeping for an amount of time given in
bot-config.json. Then I'll set up a bot using that action (building
with GCC 6 branch; a bot using GCC mainline may wait until the SH
out-of-memory issues
<https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78460> are fixed; I
expect the bot to mail to me until it seems ready to switch to mailing
to gcc-testresults).
* scripts/build-many-glibcs.py: Add bot-cycle to usage message.
Import email.mime.text, email.utils and smtplib modules.
(Context.__init__): Initialize self.bot_config_json.
(Context.run_builds): Handle bot-cycle action.
(Context.load_bot_config_json): New function.
(Context.part_build_old): Likewise.
(Context.bot_cycle): Likewise.
(Context.bot_build_mail): Likewise.
(Context.bot_run_self): Likewise.
(get_parser): Allow bot-cycle action.
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This patch makes build-many-glibcs.py store information about builds
in JSON format. This is part of preparing it for use in a bot
checking for regressions.
The information stored is: time of last build (of host-libraries,
compilers or glibcs); versions of components used in the last build
(for compilers, host library versions are properly copied from those
used for the previous host-libraries build, and for glibcs, component
versions other than that of glibc are similarly copied from the last
compilers build); PASS/FAIL/UNRESOLVED results of the individual build
steps; a list of changed results; a list of tests (that are still run
at all) that have ever been recorded to PASS.
The first pieces of information are intended to be used by a bot to
decide whether a rebuild is appropriate (based on some combination of
elapsed time and changes to versions; a bot might want to rebuild
glibcs if there had been any change but only rebuild compilers after
enough time had elapsed, for example). All the information is
intended to be used in generating mails with results information.
This state is specifically for full builds (no individual configs for
building compilers or glibcs specified). If individual configs are
specified, build-time and build-versions information is cleared (since
it will no longer accurately reflect the install directory contents),
while the other information is left unchanged. This reflects the
motivation of providing information for a bot checking for
regressions; the contents of build-state.json in a tree used for
manual builds that may be only for some configurations are not
particularly important.
* scripts/build-many-glibcs.py: Import datetime module.
(Context.__init__): Load JSON build state. Initialize list of
status logs.
(Context.run_builds): Update saved build state.
(Context.add_makefile_cmdlist): Update list of status logs.
(Context.load_build_state_json): New function.
(Context.store_build_state_json): Likewise.
(Context.clear_last_build_state): Likewise.
(Context.update_build_state): Likewise.
(CommandList.status_logs): Likewise.
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Updating build-many-glibcs.py may result in changes to the default
versions of components, or to the set of components (if e.g. Hurd
support is added and that requires a new component).
It's desirable for the checkout process to leave a source tree that is
ready to use. If the checkout updated the script itself, that means
it needs to be rerun to cause any new versions or components
referenced by the new script version to be properly checked out. This
patch makes the script check if it was modified by the checkout
process, and re-exec itself (with the same arguments) if so.
* scripts/build-many-glibcs.py (Context.__init__): Save text of
script being executed.
(Context.get_script_text): New function.
(Context.exec_self): Likewise.
(Context.checkout): Re-exec script if changed by checkout process.
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This patch makes build-many-glibcs.py record the component versions
checked out, and whether those versions were explicitly requested or
defaults, in a file versions.json in the source directory.
The preferred version of a component is the first of: one explicitly
specified on the command line; one explicitly specified on the command
line in a previous run of build-many-glibcs.py; a default version for
that component. Thus, once you've run build-many-glibcs.py checkout
once with the updated script (making sure to specify the right
versions of any components previously checked out with a non-default
version), in future you can just run it without version specifiers and
it will know when a default-version component has changed its default
version and so should be checked out again.
Because you might have local changes and not want a default-version
component checkout replaced, you need to pass the --replace-sources
option to allow the script to delete and replace a component source
directory automatically; otherwise, it will give an error if a version
has changed. The script does not try to change branches of git or SVN
checkouts without checking out from scratch; if the version number
requested has changed and --replace-sources is used, the relevant
source directory will be removed completely and a new one checked out
from scratch.
Apart from allowing automatic updates of components with default
versions, this also facilitates bots reporting on the versions used in
a given build. versions.json contains not just information on the
version number and whether that was requested explicitly, but also git
or SVN revision information intended to be used in email reports from
bots.
* scripts/build-many-glibcs.py: Import json module.
(Context.__init__): Take replace_sources argument. Load
versions.json.
(Context.load_versions_json): New function.
(Context.store_json): Likewise.
(Context.store_versions_json): Likewise.
(Context.set_component_version): Likewise.
(Context.checkout): Update versions.json. Check for and handle
changes of version. Prefer previously explicitly specified
version to default version.
(Context.checkout_vcs): Return a revision identifier.
(Context.git_checkout): Likewise.
(Context.gcc_checkout): Likewise.
(get_parser): Add --replace-sources option.
(main): Pass replace_sources argument to Context call.
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TILEPro now has a __builtin_trap instruction in gcc tip and gcc 6.
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My most recent build-many-glibcs.py build with GCC mainline showed
build failures for tilepro with the symptoms (multiple definitions of
symbols building ld.so, see the build log referenced in the GCC bug
referenced in the comment for an example) that correspond to the
isolate-erroneous-paths optimization not being suitable for building
glibc unless the GCC port provides a trap pattern (so __builtin_trap
expands to an inline instruction rather than a call to abort). Since
tilepro indeed lacks such as pattern in GCC, this patch duly arranges
for this optimization to be disabled when building for tilepro, as it
is for sh.
Tested (compilation only) for tilepro.
* scripts/build-many-glibcs.py (Context.add_all_configs): Also use
-fno-isolate-erroneous-paths options for tilepro.
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As requested in
<https://sourceware.org/ml/libc-alpha/2016-11/msg00664.html>, this
patch makes the commands recorded in build-many-glibcs.py quote words
so they can be cut-and-pasted back into a shell. (Note that these
logs are generated by the wrapper script generated to run commands
with logs, hence the needs for quoting logic to be implemented in that
shell script.)
* scripts/build-many-glibcs.py (Context.write_files): Make wrapper
script quote words in command output to log suitably for input to
the shell.
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This patch adds the missing GCC configure options required to make use
of the newly built host libraries in build-many-glibcs.py.
* scripts/build-many-glibcs.py (Config.build_gcc): Configure with
newly built gmp, mpfr and mpc.
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* scripts/build-many-glibcs.py (os.path): Do not import.
(Context): Inherit explicitly from object. Remove blank line
between class and docstring.
(Config): Likewise.
(Glibc): Likewise.
(Command): Likewise.
(CommandList): Likewise.
(Context.write_files): Store chmod mode in a variable.
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This patch adds a Python (3.5 or later) script to build many different
configurations of glibc, including building the required cross
compilers first. It's not intended to change any patch testing
requirements, although some people may wish to use it for high-risk
patches such as adding warning options (and it can also be used to
test building, including compiling tests, for an individual
configuration, if e.g. you wish to do such a compilation test of a
patch for an architecture it touches).
The configurations include all the GNU/Linux ABI variants in
<https://sourceware.org/glibc/wiki/ABIList> (although some do not yet
build cleanly) and it would be desirable to cover enough other
variants e.g. for CPUs using different sysdeps directories to test
building each piece of code in glibc at least once. It would also be
desirable to extend it to cover Hurd and NaCl, which might best be
done by people familiar with those configurations.
You call the script as
build-many-glibcs.py /some/where thing-to-do <other-arguments>
where /some/where is a working directory for the script. It will
create and use subdirectories build, install, logs therein. You can
use it with thing-to-do being "checkout" to create a subdirectory src
therein, with subdirectories binutils, gcc, glibc, gmp, linux, mpc,
mpfr with the sources of those components, or create those directories
manually (all except glibc can be symlinks to sources elsewhere). In
the checkout case, by default it checks out GCC 6 branch, binutils
2.27 branch, glibc mainline and releases of other components. You can
specify <component>-<version> to choose a version to check out, where
<version> is "vcs-mainline" or "vcs-<branch>" to check out from
version control (only supported for gcc, binutils, glibc) and
otherwise a release version number to download and use a tarball;
components not specified on the command line have default versions
checked out. If you rerun "checkout" (with the same version
specifications) it will update checkouts from version control, but
will not detect cases where the location something is expected to be
checked out from has changed.
Other than "checkout", thing-to-do is one of host-libraries,
compilers, glibcs. So you run, in that order:
build-many-glibcs.py /some/where host-libraries
build-many-glibcs.py /some/where compilers
build-many-glibcs.py /some/where glibcs
host-libraries is run once and then those libraries are used for all
the compilers. compilers can be run once and then used many times for
testing different glibc versions (so a bot only needs to update glibc
and rerun the glibcs task, if using stable GCC / binutils; if testing
the latest versions of the whole toolchain together including mainline
GCC, it would probably want to update everything and rerun both
compilers and glibcs). You can also name particular variants after
"compilers" or "glibcs" to build just those variants (the possible
variants are hardcoded in the script).
I may add support for allowing the set of configurations to depend on
the GCC version (to get cleaner default results), and optionally
looping over architecture-independent glibc variants of CFLAGS and
configure options as well, for every glibc configuration listed
(e.g. -Os).
GCC versions before 4.9 are not expected to work (the code uses
--with-glibc-version to get the bootstrap GCC appropriately
configured). There are various problems for particular configurations
as well.
Command-line options to the script: -jN to run N jobs in parallel
(default the number of CPU cores reported by the system); --keep=all
or --keep=failed to control keeping around build directories (default
--keep=none).
* scripts/build-many-glibcs.py: New file.
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