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Whenever the rpath string actually _grows_, it falls back to patchelf,
when it stays the same length or gets shorter, we update it in-place,
padded with null bytes.
This PR only deals with absolute -> absolute rpath replacement. We don't
use `_build_tarball(relative=True)` in our CI. If `relative` then it falls
back to the old replacement code.
With this PR, relocation time goes down significantly, likely because patchelf
does some odd things with mmap, causing lots of overhead. Example:
- `binutils`: 700MB installed, goes from `1.91s` to `0.57s`, or `3.4x` faster.
Relocation time: 27% -> 10% of total install time
- `llvm`: 6.8GB installed, goes from `28.56s` to `5.38`, or `5.3x` faster.
Relocation time: 44% -> 13% of total install time
The bottleneck is now decompression.
Note: I'm somewhat confused about the "relative rpath" code paths. Right
now this PR only deals with absolute -> absolute replacement. As far as
I understand, if you embrace relative rpaths when uploading to the
buildcache, the whole point is you _don't_ want to patch rpaths on
install? So it seems fine to not expand `$ORIGIN` again imho.
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When a package asks for non-parallel make, we need to force `make -j1` because just doing `make` will run in parallel under jobserver (e.g. `spack env depfile`).
We now always add `-j1` when asked for a non-parallel execution (even if there is no jobserver).
And each `MakeExecutable` can now ask for jobserver support or not. For example: the default `ninja` does not support jobserver so spack applies the default `-j`, but `ninja@kitware` or `ninja-fortran` does, so spack doesn't add `-j`.
Tips: you can run `SPACK_INSTALL_FLAGS=-j1 make -f spack-env-depfile.make -j8` to avoid massive job-spawning because of build tools that don't support jobserver (ninja).
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We try to avoid non-default variant values in the concretizer, but this doesn't make
sense for variants forced to take some non-default value by variant propagation.
Counting this as a penalty effectively biases the concretizer for small specs dependency
graphs -- something we try very hard to avoid elsewhere because it can lead to very
strange decisions.
Example: with the penalty, `spack spec hdf5` will choose the default `openmpi` as its
`mpi` provider, but `spack spec hdf5 ~~shared` will choose `mpich` because it has to set
fewer non-default variant values because `mpich`'s DAG is smaller. That's not a good
reason to prefer a non-default virtual provider.
To fix this, if the user explicitly requests a non-default value to be propagated, there
shouldn't be a penalty. Variant values set on the CLI already don't count as default; we
just need to extend that to propagated values.
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Adds another post install hook that loops over the install prefix, looking for shared libraries type of ELF files, and sets the soname to their own absolute paths.
The idea being, whenever somebody links against those libraries, the linker copies the soname (which is the absolute path to the library) as a "needed" library, so that at runtime the dynamic loader realizes the needed library is a path which should be loaded directly without searching.
As a result:
1. rpaths are not used for the fixed/static list of needed libraries in the dynamic section (only for _actually_ dynamically loaded libraries through `dlopen`), which largely solves the issue that Spack's rpaths are a heuristic (`<prefix>/lib` and `<prefix>/lib64` might not be where libraries really are...)
2. improved startup times (no library search required)
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Untouched spec pruning was added to reduce the number of specs
developers see getting rebuilt in their PR pipelines that they
don't understand. Because the state of the develop mirror lags
quite far behind the tip of the develop branch, PRs often find
they need to rebuild things untouched by their PR.
Untouched spec pruning was previously implemented by finding all
specs in the environment with names of packages touched by the PR,
traversing in both directions the DAGS of those specs, and adding
all dependencies as well as dependents to a list of concrete specs
that should not be considered for pruning.
We found that this heuristic results in too many pruned specs, and
that dependents of touched specs must have all their dependencies
added to the list of specs that should not be considered for pruning.
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This issue was introduced in #29761:
```
==> Installing ncurses-6.3-22hz6q6cvo3ep2uhrs3erpp2kogxncbn
==> No binary for ncurses-6.3-22hz6q6cvo3ep2uhrs3erpp2kogxncbn found: installing from source
==> Using cached archive: /spack/var/spack/cache/_source-cache/archive/97/97fc51ac2b085d4cde31ef4d2c3122c21abc217e9090a43a30fc5ec21684e059.tar.gz
==> No patches needed for ncurses
==> ncurses: Executing phase: 'autoreconf'
==> ncurses: Executing phase: 'configure'
==> ncurses: Executing phase: 'build'
==> ncurses: Executing phase: 'install'
==> Error: AttributeError: 'str' object has no attribute 'propagate'
The 'ncurses' package cannot find an attribute while trying to build from sources. This might be due to a change in Spack's package format to support multiple build-systems for a single package. You can fix this by updating the build recipe, and you can also report the issue as a bug. More information at https://spack.readthedocs.io/en/latest/packaging_guide.html#installation-procedure
/spack/lib/spack/spack/build_environment.py:1075, in _setup_pkg_and_run:
1072 tb_string = traceback.format_exc()
1073
1074 # build up some context from the offending package so we can
>> 1075 # show that, too.
1076 package_context = get_package_context(tb)
1077
1078 logfile = None
```
It turns out this was caused by a bug that had been around much longer, in which the flags were passed by reference to the flag_handler, and the flag_handler was modifying the spec object, not just the flags given to the build system. The scope of this bug was limited by the forking model in Spack, which is how it went under the radar for so long.
PR includes regression test.
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* remove deptype_query remnants
* deptypes -> deptype
These arguments haven't existed since 2017, but `traverse` now fails on unknown **kwargs, so they have finally popped up.
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This updates the propagation logic used in `concretize.lp` to avoid rules with `path()`
in the body and instead base propagation around `depends_on()`.
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Currently, compiler flags and variants are inconsistent: compiler flags set for a
package are inherited by its dependencies, while variants are not. We should have these
be consistent by allowing for inheritance to be enabled or disabled for both variants
and compiler flags.
- [x] Make new (spec language) operators
- [x] Apply operators to variants and compiler flags
- [x] Conflicts currently result in an unsatisfiable spec
(i.e., you can't propagate two conflicting values)
What I propose is using two of the currently used sigils to symbolized that the variant
or compiler flag will be inherited:
Example syntax:
- `package ++variant`
enabled variant that will be propagated to dependencies
- `package +variant`
enabled variant that will NOT be propagated to dependencies
- `package ~~variant`
disabled variant that will be propagated to dependencies
- `package ~variant`
disabled variant that will NOT be propagated to dependencies
- `package cflags==True`
`cflags` will be propagated to dependencies
- `package cflags=True`
`cflags` will NOT be propagated to dependencies
Syntax for string-valued variants is similar to compiler flags.
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Fixes an issue on the RHEL8 UBI container where this test would fail because `gr_mem`
was empty for every entry in the `grp` DB.
You have to check *both* the `pwd` database (which has primary groups) and `grp` (which
has other gorups) to do this correctly.
- [x] update `llnl.util.filesystem.group_ids()` to do this
- [x] use it in the `sbang` test
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This PR introduces breadth-first traversal, and moves depth-first traversal
logic out of Spec's member functions, into `traverse.py`.
It introduces a high-level API with three main methods:
```python
spack.traverse.traverse_edges(specs, kwargs...)
spack.traverse.traverse_nodes(specs, kwags...)
spack.traverse.traverse_tree(specs, kwargs...)
```
with the usual `root`, `order`, `cover`, `direction`, `deptype`, `depth`, `key`,
`visited` kwargs for the first two.
What's new is that `order="breadth"` is added for breadth-first traversal.
The lower level API is not exported, but is certainly useful for advanced use
cases. The lower level API includes visitor classes for direction reversal and
edge pruning, which can be used to create more advanced traversal methods,
especially useful when the `deptype` is not constant but depends on the node
or depth.
---
There's a couple nice use-cases for breadth-first traversal:
- Sometimes roots have to be handled differently (e.g. follow build edges of
roots but not of deps). BFS ensures that root nodes are always discovered at
depth 0, instead of at any depth > 1 as a dep of another root.
- When printing a tree, it would be nice to reduce indent levels so it fits in the
terminal, and ensure that e.g. `zlib` is not printed at indent level 10 as a
dependency of a build dep of a build dep -- rather if it's a direct dep of my
package, I wanna see it at depth 1. This basically requires one breadth-first
traversal to construct a tree, which can then be printed with depth-first traversal.
- In environments in general, it's sometimes inconvenient to have a double
loop: first over the roots then over each root's deps, and maintain your own
`visited` set outside. With BFS, you can simply init the queue with the
environment root specs and it Just Works. [Example here](https://github.com/spack/spack/blob/3ec73046995d9504d6e135f564f1370cfe31ba34/lib/spack/spack/environment/environment.py#L1815-L1816)
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Currently, many tests hardcode to older versions of gcc for comparisons of
concretization among compiler versions. Those versions are too old to concretize for
`aarch64`-family targets, which leads to failing tests on `aarch64`.
This PR fixes those tests by updating the compiler versions used for testing.
Currently, many tests hardcode the expected architecture result in concretization to the
`x86_64` family of architectures.
This PR generalizes the tests that can be generalized, to cover multiple architecture
families. For those that test specific relationships among `x86_64`-family targets, it
ensures that concretization uses the `x86_64`-family targets in those cases.
Currently, many tests rely on the fact that `AutotoolsPackage` imposes no dependencies
on the inheriting package. That is not true on `aarch64`-family architectures.
This PR ensures that the fact `AutotoolsPackage` on `aarch64` pulls in a dependency on
`gnuconfig` is ignored when testing for the appropriate relationships among dependencies
Additionally, 5 tests currently prompt the user for input when `gpg` is available in the
user's path. This PR fixes that issue. And 7 tests fail currently when the user has a
yubikey available. This PR fixes the incorrect gpg argument causing those issues.
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The `spack info <package>` command does not show the `Virtual Packages:` output unless the `--virtuals` command option is passed. Before this changes, the information that the command is supposed to be illustrating is not shown in the example and is confusing.
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This PR solves the issue reported in #32471 specifically for targets and operating systems,
by avoiding to add a default platform to anonymous specs.
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Introduces `spack.util.elf.parse_elf(file_handle)`
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Previously symlinks were not relocated when they pointed across packages
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Changes to improve locating shared libraries on Windows, which in
turn enables the use of Clingo. This PR attempts to establish a
proper distinction between linking on Windows vs. Linux/Mac: on
Windows, linking is always done with .lib files (never .dll files).
This somewhat complicates the model since the Spec.lib method could
return libraries that were used for both linking and loading, but
since these are not always the same on Windows, it was decided to
treat Spec.libs as being for link-time libraries. Additional functions
are added to help dependents locate run-time libraries.
* Clingo is now the default concretizer on Windows
* Clingo is now the concretizer used for unit tests on Windows
* Fix a permissions issue that can occur while moving Git files during
fetching/staging
* Packages can now implement "win_add_library_dependent" to register
files/directories that include libraries that would need to link
to dependency dlls
* Packages can now implement "win_add_rpath" to register the locations
of dlls that dependents would want to load
* "Spec.libs" on Windows is updated to return link-time libraries
(i.e. .lib files, rather than .dll files)
* PackageBase.rpath on Windows is now updated to return the most-likely
locations where .dlls will be found (which is generally in the bin/
directory)
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Currently there's a slow sequential step in binary relocation where all
strings of a binary are collected, with rpaths removed, and then
filtered for the old install root.
This is completely unnecessary, and also incorrect, since we replace
more than just the old install root in the prefix to prefix mapping. And
in fact the prefix to prefix mapping is parallel, and a single pass. So
even as an optimization, this filter makes no sense anymore.
Therefor we remove it
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- single pass over the binary data matching all prefixes
- collect offsets and replacement strings
- do in-place updates with `fseek` / `fwrite`, since typically our
replacement touch O(few bytes) while the file is O(many megabytes)
- be nice: leave the file untouched if some string can't be
replaced
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* Deprecate spack bootstrap trust/untrust
* Update CI
* Update tests
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Also: add type annotation to indicate that "phases" is always a
tuple of strings.
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fixes #33544
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* Add patches for building clingo with MSVC
* Help python find clingo DLL
* If an executable is located in "C:\Program Files", Executable was
running into issues with the extra space. This quotes the exe
to ensure that it is treated as a single value.
Signed-off-by: Kiruya Momochi <65301509+KiruyaMomochi@users.noreply.github.com>
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This commit extends the DSL that can be used in packages
to allow declaring that a package uses different build-systems
under different conditions.
It requires each spec to have a `build_system` single valued
variant. The variant can be used in many context to query, manipulate
or select the build system associated with a concrete spec.
The knowledge to build a package has been moved out of the
PackageBase hierarchy, into a new Builder hierarchy. Customization
of the default behavior for a given builder can be obtained by
coding a new derived builder in package.py.
The "run_after" and "run_before" decorators are now applied to
methods on the builder. They can also incorporate a "when="
argument to specify that a method is run only when certain
conditions apply.
For packages that do not define their own builder, forwarding logic
is added between the builder and package (methods not found in one
will be retrieved from the other); this PR is expected to be fully
backwards compatible with unmodified packages that use a single
build system.
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Instead of looping over multiple regexes and the entire text file
contents, create a giant regex with all literal prefixes and do a single
pass over files to detect prefixes. Not only is a single pass faster,
it's also likely that the regex is compiled better, given that most
prefixes share a common ... prefix.
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* Fast Gitlab CI job setup, and better legibility
* Use a non-broken, recent GNU Make
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In the dfs code, flip edges so that `parent` means `from` and
`spec` means `to` in the direction of traversal. This makes it slightly
easier to write generic/composable code. For example when using visitors
where one visitor reverses direction, and another only cares about
accepting particular edges or not depending on whether the target node
is seen before, it would be good if the second visitor didn't have to
know whether the order was changed or not.
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Use the same compression level as `gzip` (6) instead of what Python uses
(9).
The LLVM tarball takes 4m instead of 12m to create, and is <1% larger.
That's not worth the wait...
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#32137 added an option to update() a BinaryCacheIndex with a
cooldown: repeated attempts within this cooldown would not
actually retry. However, the cooldown was not properly
tracked for failures (which is common when the mirror
does not store any binaries and therefore has no index.json).
This commit ensures that update(..., with_cooldown=True) will
also skip the update even if a failure has occurred within the
cooldown period.
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Due to reuse concretization, we may generate DAGs with two occurrences
of the same package corresponding to distinct specs. This happens when
build dependencies are reused, since their dependencies are ignored in
concretization.
This caused a regression, for example: `spec['openssl']` would take the
'openssl' of the build dep `cmake`, instead of the direct `openssl`
dependency, simply because the edge to `cmake` was traversed first and
we do depth first traversal.
One solution that was discussed is to limit `spec[name]` to just direct
deps, or direct deps + transitive link deps, but this is too breaking.
Instead, this PR simply prioritizes transitive link and direct
build/run/test deps, and then falls back to a full DAG traversal. So,
it's just about order of iteration.
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Delete code removing the symlink during CI
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Use --backtrace in ci instead of --debug to reduce verbosity
and don't show log on error, since log is already printed
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Scan the text files for relocatable prefixes *before* creating a tarball,
to reduce the amount of work to be done during install from binary
cache.
Co-authored-by: Harmen Stoppels <harmenstoppels@gmail.com>
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Instead of showing
```
==> Error: Timed out waiting for a write lock.
```
show
```
==> Error: Timed out waiting for a write lock after 1.200ms and 4 attempts on file: /some/file
```
s.t. we actually get to see where acquiring a lock failed even when not
running in debug mode.
And use pretty time units everywhere, so we don't get 1.45e-9 seconds
but 1.450ns etc.
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* backtraces without --debug
Currently `--debug` is too verbose and not-`--debug` gives to little
context about where exceptions are coming from.
So, instead, it'd be nice to have `spack --backtrace` and
`SPACK_BACKTRACE=1` as methods to get something inbetween: no verbose
debug messages, but always a full backtrace.
This is useful for CI, where we don't want to drown in debug messages
when installing deps, but we do want to get details where something goes
wrong if it goes wrong.
* completion
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Currently `relocate_text` and `relocate_text_bin` are unsafe in the
sense that they run in parallel, and lead to races when modifying
different items pointing to the same inode.
This leads to the issue observed in #33453.
This PR:
1. Renames those functions to `unsafe_*` so people are aware
2. Adds logic to deal with hardlinks in current binary packages
3. Adds logic to deal with hardlinks when creating new binary tarballs,
so the install side doesn't have to de-dupe hardlinks.
4. Adds a test for 3
The assumption is that all our relocation logic preserves inodes. That
is, we should never copy a file, modify it, and then move it back. I
quickly verified, and its seems like this is true for (binary) text
relocation, as well as rpath patching in patchelf (even when the file
grows) and mach-o fixes.
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* gitlab: Do not use root_spec['pkg_name'] anymore
For a long time it was fine to index a concrete root spec with the name
of a dependency in order to access the concrete dependency spec. Since
pipelines started using `--use-buildcache dependencies:only,package:never`
though, it has exposed a scheduling issue in how pipelines are
generated. If a concrete root spec depends on two different hashes of
`openssl` for example, indexing that root with just the package name
is ambiguous, so we should no longer depend on that approach when
scheduling jobs.
* env: make sure exactly one spec in env matches hash
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When installing some/all specs from a buildcache, build edges are pruned
from those specs. This can result in a much smaller effective DAG. Until
now, `spack env depfile` would always generate a full DAG.
Ths PR adds the `spack env depfile --use-buildcache` flag that was
introduced for `spack install` before. This way, not only can we drop
build edges, but also we can automatically set the right buildcache
related flags on the specific specs that are gonna get installed.
This way we get parallel installs of binary deps without redundancy,
which is useful for Gitlab CI.
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When downloading from binary cache not only replace RPATHs to dependencies, but
also text references to dependencies.
Example:
`autoconf@2.69` contains a text reference to the executable of its dependency
`perl`:
```
$ grep perl-5 /shared/spack/opt/spack/linux-amzn2-x86_64_v3/gcc-7.3.1/autoconf-2.69-q3lo/bin/autoreconf
eval 'case $# in 0) exec /shared/spack/opt/spack/linux-amzn2-x86_64_v3/gcc-7.3.1/perl-5.34.1-yphg/bin/perl -S "$0";; *) exec /shared/spack/opt/spack/linux-amzn2-x86_64_v3/gcc-7.3.1/perl-5.34.1-yphg/bin/perl -S "$0" "$@";; esac'
```
These references need to be replace or any package using `autoreconf` will fail
as it cannot find the installed `perl`.
Co-authored-by: Stephen Sachs <stesachs@amazon.com>
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"spack install" will not update the binary index if given a concrete
spec, which causes it to fall back to direct fetches when a simple
index update would have helped. For S3 buckets in particular, this
significantly and needlessly slows down the install process.
This commit alters the logic so that the binary index is updated
whenever a by-hash lookup fails. The lookup is attempted again with
the updated index before falling back to direct fetches. To avoid
updating too frequently (potentially once for each spec being
installed), BinaryCacheIndex.update now includes a "cooldown"
option, and when this option is enabled it will not update more
than once in a cooldown window (set in config.yaml).
Co-authored-by: Tamara Dahlgren <35777542+tldahlgren@users.noreply.github.com>
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Co-authored-by: Massimiliano Culpo <massimiliano.culpo@gmail.com>
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