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... to remove the risk of deadlocks on certain combinations
of C++ standard library and libc when performing the
copy/write in a child process. For 'fdless' copy/write, a
child process is used to prevent the parent from getting
polluted with open writable file descriptors (which might
get inherited by other children that keep them open and can
cause EBUSY errors).
(cherry picked from 5142b99f94dcbf47274a5f32a1780cf865621401)
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... by making variables `os` and `arch` accessible to
bootstrap hints. Furthermore, support the hints `os_map`
and `arch_map` for mapping Justbuild's OS/ARCH to the
terminology used by the repository. Values not covered by
these maps will be passed through.
(cherry picked from b7648b494024b00f8dabec8ab60a9990dd97bda7)
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(cherry picked from commit d9ceae7315298445c975f571f0417a4553e0ae32)
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... and set default stack size to 8 MB.
(cherry picked from commit 9e45d1525b0fde12a08f7c376b5bf2c7bfbc9803)
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... for easy processing with pandoc.
(cherry picked from commit b6dbf64d641b9286e2d9d99adb20ae9dbdf2e1b9)
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Justbuild does not directly depend on re2, hence the indirect
dependency on re2 is taken care of by pkg-config. Nevertheless, it
is useful to have such a file for packaging that takes most of the
dependencies from the system, but uses some of the dependencies
bundled; a particular such use case is taking the bundled versions
of proto, grpc, and absl, as those might be packaged in an
incompatible version.
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Using only our third-party descriptions, the build is independent of
PKG_CONFIG_PATH. However, when combinging our third-party descriptions
with dependencies taken from the system via pkg-config there is a
dependency of PKG_CONFIG_PATH due to those indirect dependencies.
Therefore, allow flexible PKG_CONFIG_PATH to support such a mixed
bootstrapping.
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...caused by incorrectly setting and resetting the library internal
state and the misuse of pthreads in libgit2.
Normally, git_libgit2_init and git_libgit2_shutdown should span the
life of a worker thread in order to be safely used. However, due to
an incorrect implementation of libgit2's threadstate with pthreads,
on unix systems there is a race condition.
Until the use of pthread_key_t is corrected in libgit2, we need to
apply a workaround by always ensuring that the main thread is the
first thread reaching the GitContext constructor.
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... using the repository and build configuration written out by the bootstrap
process.
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...missed so far. These are not actionable from our side.
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... and, in particular, do not read any rc files for just-mr
the user might have.
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... in particular echo(1), which behaves different on dash
and sh.
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... and drop unecessary IsTree() check.
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While "gcc" is the name of the standard C compiler in the gnu
compiler family, the name of the compiler family, as expected by
the "COMPILER_FAMILY" configuration variable, actually is "gnu".
Fix this in the documentation string of the default export target.
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This update also removes upb as external dependency.
Co-authored-by: Paul Cristian Sarbu <paul.cristian.sarbu@huawei.com>
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...as required by grpc v1.53.0
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Co-authored-by: Paul Cristian Sarbu <paul.cristian.sarbu@huawei.com>
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Dependencies (type archive/zip) that are not required for
bootstrapping just are usually marked with the hint "drop",
in order to avoid fetching non-required archives. This
affects only non-local dependencies, as local dependencies
(from the system) will not fetch anything and therefore do
not need to be dropped.
With this commit, the "drop" hint for declared
non-local-deps will be ignored during package builds. In
this way, the user can specify dependencies that should not
be dropped (despite not strictly required to bootstrap
just). Consequently, those dependencies remain in the
generated bootstrap configuration, in case the user wants to
use this configuration to build other targets, such as
just-mr.
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... so in can be used (in combination with the repository
config) to build other just targets, such as just-mr.
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... and align lib names to commonly used pkg names.
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In just-mr the config file should only be needed if:
1. We call just with a subcommand requiring a config file, or
2. We use one of just-mr's own commands (except version).
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... with two minor code base changes compared to previous
use of gsl-lite:
- dag.hpp: ActionNode::Ptr and ArtifactNode::Ptr are not
wrapped in gsl::not_null<> anymore, due to lack of support
for wrapping std::unique_ptr<>. More specifically, the
move constructor is missing, rendering it impossible to
use std::vector<>::emplace_back().
- utils/cpp/gsl.hpp: New header file added to implement the
macros ExpectsAudit() and EnsureAudit(), asserts running
only in debug builds, which were available in gsl-lite but
are missing in MS GSL.
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