Imported from GitHub PR https://github.com/abseil/abseil-cpp/pull/1452

__cpuid is declared in intrin.h, but is excluded on non-Windows platforms.
We add this declaration to compensate.

Fixes #1358

PiperOrigin-RevId: 534449804
Change-Id: I91027f79d8d52c4da428d5c3a53e2cec00825c13

This includes an upgrade to CMake 3.26.3 and Bazel 6.2.0

This change includes support for both GCC 12 and 13 since we
were only testing GCC 11 before this change.

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Change-Id: I56b897060b9afe9d3d338756c80e52f421653b55

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Change-Id: I9ad24518cc6a336fbaf602269fb01319491c8b60

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Change-Id: I4c0c111202178031e08d9edad3a4501800d924f0

PiperOrigin-RevId: 534117706
Change-Id: Id48f1538e71d30286675eb32c9fb3e6f47774aa8

Rename ABSL_*_IMPL macros to match the other ABSL_LOG_INTERNAL_* macros and to make sure it's clear that they're internal.

Also rename the log and check test files from .h to .inc per https://google.github.io/styleguide/cppguide.html#Self_contained_Headers.

PiperOrigin-RevId: 533603350
Change-Id: Iad5d8b683e33b63784cc8e64b84da09f5fc3bf1e

Previous implementation used a lookup table of 200 bytes which, if not in L1 cache, could cause memory stalls and consumes 3-4 cache lines. This is suboptimal in real world scenarious. We are going to use a purely scalar version of merging 2/4/8 bytes together.

PiperOrigin-RevId: 533576619
Change-Id: Icd730d18536f7eb35979b62582f6edf86b786019

PiperOrigin-RevId: 533455360
Change-Id: Ia95b225f8c186a831801f1ee008d7a5c0fff544b

__cpuid is declared in intrin.h, but is "excluded" on non-Windows
platforms.
We add this declaration to compensate.

Fixes #1358

PiperOrigin-RevId: 533121605
Change-Id: I82390045985db5db56e93c40eae24cdcd93e3ab4

libstdc++'s definition of std::launder places it behind a check for
__builtin_launder, which is not available before clang 8.

Fixes: #1309

These have been marked deprecated in the comments for some time,
(since f340f773) but the warnings
were never enabled.

A warning suppression is enabled for Abseil code so that when we
declare types in our code, we don't get a warning.

PiperOrigin-RevId: 532891102
Change-Id: Ife0c5696a061ea44769e02869e4e3d1196e86f9d

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Change-Id: I813841ff3e5085b64c9b02ca41897bf7f6a8570e

PiperOrigin-RevId: 532199109
Change-Id: I5a2a96b9c8b52feb0107d912b0011911fc1f0f4c

absl::RegisterSymbolizer() has been deprecated for 5 years.
It is being removed following our compatibility policy.
<https://abseil.io/about/compatibility>
PiperOrigin-RevId: 532174866
Change-Id: Id5c3b86698e389099d3d707c4e57f30f1f155d2e

PiperOrigin-RevId: 532174747
Change-Id: I39dc6d5c369e8bfbdde5c826836e42f5baa69dc5

This is a heavily modified version of
https://github.com/abseil/abseil-cpp/pull/1445,
which adds some missing test libraries to the test DLL.

Unlike #1445, this change moves several global variables out of
headers that did not need to be in headers.

For instance, cord_btree_exhaustive_validation was a global
defined/declared in cord_internal, but only used in cord_rep_btree
and its test.

cordz_handle defined a queue in its header even though it wasn't needed,
which also led to ODR problems.

The Spinlock used in CordzHandle is replaced with a Mutex. This was
originally a Mutex, but Chromium asked us to change it to a Spinlock
to avoid a static initializer. After this change, the static
initializer is no longer an issue.

#1407

PiperOrigin-RevId: 531516991
Change-Id: I0e431a193698b20ba03fac6e414c26f153f330a7

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Change-Id: Ib5a67f827bf89a66a0a8d24d3191f278566af6c8

PiperOrigin-RevId: 530999471
Change-Id: Ifca68cd53be629088244eaa3560d43fd81090747

will just be a copy anyway. Also remove the typedef so that it is
clear from the type at the callsite that moving it isn't necessary.

Fixes #1443

PiperOrigin-RevId: 530596294
Change-Id: I58ffc370bbccc0816bca4c4f85c3bb12c7ee2eb2

PiperOrigin-RevId: 530445615
Change-Id: I0c112773e7f42989840cb8b915167ade8833ef73

on timing as flaky.

This will run them up to 3 times (in the default configuration) and only
consider the test failed if it fails each time.

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Change-Id: Ib77bd8a166828b82a1b49ee5ef2e8321752e51d0

builds.

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Change-Id: I7c885156e14d9c8c444c7c6f8d38e7aaac7c01a7

PiperOrigin-RevId: 530238518
Change-Id: I2bfca582c0734f7e6943c5359730a2857809e2d2

Make `absl::StatusOr::AssignStatus` public. Recommend against using it outside of generic programming (attempt #2 after internal fix)

PiperOrigin-RevId: 529796927
Change-Id: I755b7d907f96f4a05d01620503bf0862ce35e847

PiperOrigin-RevId: 529514670
Change-Id: Ia9a19da52f58c91d5131c2a17308a7a322db2714

Make `absl::StatusOr::AssignStatus` public. Recommend against using it outside of generic programming

PiperOrigin-RevId: 529484669
Change-Id: I9889a9f7a7fa7dc6ef8c731f1b583a74e6afd2cf

Also do some minor refactoring in btree.h.

PiperOrigin-RevId: 529460378
Change-Id: I278833ada93bbb7652e149fceed08ce3485e4312

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Change-Id: Ib1cc427299100956c0f2ae6cb5214467ef5a3790

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Change-Id: If585274c409e2a344c8d60759da6f8f990023d29

PiperOrigin-RevId: 529086715
Change-Id: Id5462322d5707a1b4475438520fcb70ee7b15450

When we insert a new element, when ASan is enabled, we replace the node that the new element is on in order to try to detect cases of code depending on pointer/reference-stability.

PiperOrigin-RevId: 528826645
Change-Id: Ie5c15c13016a8aa831a0d1edc3ad33c1f5ca4d65

Imported from GitHub PR https://github.com/abseil/abseil-cpp/pull/1433

Some 32-bit configurations may use 64-bit time_t, which leads to different layout of userspace timespec and the one expected by SYS_futex implementation in kernel. In particular the issue occurs when using musl libc which has switched to unconditional 64-bit time_t definition.

This patch introduces custom struct timespec with two longs when old SYS_futex is used to match the kernel timespec definition.
Merge 2eaca415da825b3f31a90f58a35bdef2b6d2a6c5 into f8bf9091

Merging this change closes #1433

COPYBARA_INTEGRATE_REVIEW=https://github.com/abseil/abseil-cpp/pull/1433 from olegartys:futex_time64_bug 2eaca415da825b3f31a90f58a35bdef2b6d2a6c5
PiperOrigin-RevId: 528796119
Change-Id: Idaa952f64bd97c6dc9703a8b44deac43e29ff9ae

on timing as flaky.

This will run them up to 3 times (in the default configuration) and only
consider the test failed if it fails each time.

PiperOrigin-RevId: 528785128
Change-Id: I4aa5b74aa3a6873c83f2a01734c679351b1cd5d0

Instantiate LogMessage::CopyToEncodedBuffer separately for literals and non-literals to save an instruction at each operator<<(string) callsite.

The operator<<s get inlined at the callsite.  The saved instruction is a 'load immediate' to put the StringType argument in a register for passing.

This does make the logging TU slightly larger, but it will be an overall size win for all but the smallest programs.  Smaller, faster code at callsites is worth it anyway.

PiperOrigin-RevId: 528569773
Change-Id: Id8185266a975a12ab6f1a553c2c0846261822396

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Change-Id: I9b57ee062ef666d6a34696778ff16a46c5ccb17d

Shrink most LOG callsites by one instruction (SysV x86_64 ABI) by dispatching to per-severity constructors and omitting the severity argument.

In that particular ABI, the empty tag structs are NO_CLASS and don't appear in the generated code.

https://godbolt.org/z/crqaPh8Kv

PiperOrigin-RevId: 527989179
Change-Id: I365f11f6ca1de2623690d0a04e6f02f7de82b1fc