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Remove direct libc_errno.h inclusion and manipulation of libc_errno in
various unit tests, instead relying on ErrnoCheckingTest machinery.
This is the final mechanical change of migrating libc unit tests to
ErrnoCheckingTest - after it, all the unit tests relying on
ASSERT_ERRNO_* macro will be using ErrnoCheckingTest.h
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This patch removes some sched.h includes, preferring the proxy headers.
This patch does not clean them all up as some proxy type headers need to
be added, like for `struct sched_param`.
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LIBC_ERRNO_MODE_SYSTEM to be header-only. (#143187)
This is the first step in preparation for:
https://discourse.llvm.org/t/rfc-make-clang-builtin-math-functions-constexpr-with-llvm-libc-to-support-c-23-constexpr-math-functions/86450
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Having libc_errno outside of the namespace causes versioning issues when
trying to link the tests against LLVM-libc. Most of this patch is just
moving libc_errno inside the namespace in tests. This isn't necessary in
the function implementations since those are already inside the
namespace.
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This patch provides specific test macros to deal with `errno`.
This will help abstract away the differences between unit test and integration/hermetic tests in #79319.
In one case we use `libc_errno` which is a struct, in the other case we deal directly with `errno`.
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This is step 4 of
https://discourse.llvm.org/t/rfc-customizable-namespace-to-allow-testing-the-libc-when-the-system-libc-is-also-llvms-libc/73079
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Previously used SYS_sched_get_priority_min. This also updates the tests
for SCHED_RR and SCHED_FIFO to check max_priority > min_priority, rather
than >= in order to catch future breakages.
Reviewed By: michaelrj, goldstein.w.n
Differential Revision: https://reviews.llvm.org/D149102
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Includes macros:
linux/SCHED_OTHER // posix req
linux/SCHED_FIFO // posix req
linux/SCHED_RR // posix req
linux/SCHED_BATCH
linux/SCHED_ISO
linux/SCHED_IDLE
linux/SCHED_DEADLINE
Includes types:
struct sched_param { int sched_priority; }
Includes functions:
sched_setparam
sched_getparam
sched_setscheduler
sched_getscheduler
sched_get_priority_max
sched_get_priority_min
sched_rr_get_interval
Reviewed By: michaelrj
Differential Revision: https://reviews.llvm.org/D148069
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