Imported from GitHub PR https://github.com/abseil/abseil-cpp/pull/1509
WASI is similar to emscripten, providing a syscall layer to WebAssembly focused on server side applications. There are some config knobs that are in place to allow building the repo for emscripten which also need to support wasi (as built with LLVM). Aside from that, there are still some features it supports less than escripten, for example related to signals, causing the build to be even more limited for it.
Merge ec9fa08160 into 861e53c8f0
Merging this change closes#1509
COPYBARA_INTEGRATE_REVIEW=https://github.com/abseil/abseil-cpp/pull/1509 from anuraaga:wasi-sdk-build ec9fa08160
PiperOrigin-RevId: 557166498
Change-Id: Ic51149d8b092fd888c9a5c383275257fc8ff4232
Included are additional automated edits by clang-format on import.
Merge d74896699f into 22091f4c0d
Merging this change closes#1500
COPYBARA_INTEGRATE_REVIEW=https://github.com/abseil/abseil-cpp/pull/1500 from ryandesign:MAP_ANONYMOUS d74896699f
PiperOrigin-RevId: 552922776
Change-Id: I96a0395cb5e7156d7c7a889491c5d0b4cf755819
The current spelling is inconsistent with standard casing rules: "nonnull" is a single word, not two.
PiperOrigin-RevId: 546034114
Change-Id: I04e5a204f4a74ebaa76031dd0b0874ca9cfa902c
Reformat Mutex-related files so that incremental formatting changes
don't distract during review of logical changes.
These files are subtle and any unnecessary diffs make reviews harder.
No changes besides running clang-format.
PiperOrigin-RevId: 541981737
Change-Id: I41cccb7a97158c78d17adaff6fe553c2c9c2b9ed
It no longer strictly writes to stderr, since Emscripten/WebAssembly now use _emscripten_err which might be replaced by something that is not the same as stderr by the host.
PiperOrigin-RevId: 540655336
Change-Id: Icc2a430a0db53a1282ef5558e9f3648db67e972c
off_t is best for portability. Its size varies with the platform.
off64_t is non-standard, but is present in glibc and some BSDs.
It also matches the signature specified in the manual.
https://man7.org/linux/man-pages/man2/mmap.2.html
This is a re-spin of #1349, but correctly casts the type to the type
expected by the kernel for mmap2.
https://man7.org/linux/man-pages/man2/mmap2.2.htmlFixes#1473
PiperOrigin-RevId: 539656313
Change-Id: I7a30dd9d3eb6af03a99da0d93d721a86f6521b25
in NACL pthread_self() returns a pointer that isn't directly convertible to arithmetic type.
PiperOrigin-RevId: 539023020
Change-Id: I3745ec5565f3a99ccb1d9df12c27a80e57ca4755
Motivation is for WebAssembly to avoid perror which in turn requires file system emulation.
PiperOrigin-RevId: 536737294
Change-Id: I5177064c9451fb630ec5e9d0c0a0679fabd98afa
The fallback isn't totally portable, even within POSIX, but we can special case any future platforms where it's not just like this change does for Apple.
PiperOrigin-RevId: 535324103
Change-Id: Ib628925c4946b6c112373678fe37e9bb44259090
Use Linux's prctl(PR_SET_VMA) system call to name memory arenas being
allocated using mmap(MAP_ANONYMOUS).
This change allows Abseil's memory arena(s) to be distinguished from
other uses of anonymous memory within a process, which in turn helps
investigations into the memory usage of applications.
The change adds a new prctl() system call to the code paths that call
mmap(). This is not expected to add significant overhead to applications.
The call to prctl(PR_SET_VMA, ...) can fail if the Linux kernel in use was
not configured with the CONFIG_ANON_VMA_NAME kernel option. This should
be OK since the naming memory regions is primarily a debugging aid.
PiperOrigin-RevId: 523687348
Change-Id: Ie404e5eeef0a6da53330b3a56149c4f3bc6bf5c7
This implementation may at some point become the default on some
platforms. Currently not all platforms have widespread support for
both real absolute timeouts or real relative timeouts (here "real"
means without converting to the other timeout type which is the only
one supported by the underlying APIs). In this case we can defer to
their standard library to implement correct support.
This is not currently the default on any platform
Note: The size of WaiterState had to increase to fit the new implementation
PiperOrigin-RevId: 518266646
Change-Id: I7f246646a960d6e1b155f9de0bf2f681c5d3d245
Also makes `ABSL_INTERNAL_LOG(LEVEL(x), "oops")` not call unreachable (even when x == kFatal) for consistency.
PiperOrigin-RevId: 517894304
Change-Id: I798b1032d126330ace1e2b48edd8fc547a2ad2f8
This was originally added in order to centralize the ifdefs, in cl/164484905. However, cl/337142938 undid this aspect of the change, because it broke on Android. What is left is vestigial: `Throw()` can be deleted at no loss, with a warning that should discourage us from ever reintroducing it.
PiperOrigin-RevId: 513391041
Change-Id: I1608a2007eb26ee95df07f3b4b1672c034743832
off64_t is not provided without defining _LARGEFILE64_SOURCE on musl
this define is not defined automatically like glibc where it gets
defined when _GNU_SOURCE is defined. Using off_t makes it portable
across musl/glibc and for using 64bit off_t on glibc 32bit systems
-D_FILE_OFFSET_BITS=64 can be defined during build via CXXFLAGS
Signed-off-by: Khem Raj <raj.khem@gmail.com>
by default.
The compatibility macro `ABSL_LEGACY_THREAD_ANNOTATIONS` can be
defined on the compile command-line to temporarily restore these
spellings. All of the thread annotation macros are available under
ABSL_ prefixed spellings in `absl/base/thread_annotations.h`. The
compatibility macro and the legacy spellings will be removed in the
future.
See https://github.com/google/fuzztest/issues/41
PiperOrigin-RevId: 478498273
Change-Id: I120ad6480d031642bf95a11bf72ab883d9161810
Addresses failures with the following, in some files:
-Wshorten-64-to-32
-Wimplicit-int-conversion
-Wsign-compare
-Wsign-conversion
-Wtautological-unsigned-zero-compare
(This specific CL focuses on .cc files in */internal/.)
Bug: chromium:1292951
PiperOrigin-RevId: 473868797
Change-Id: Ibe0b76e33f9e001d59862beaac54fb47bacd39b2
Addresses failures with the following, in some files:
-Wshorten-64-to-32
-Wimplicit-int-conversion
-Wsign-compare
-Wsign-conversion
-Wtautological-unsigned-zero-compare
(This specific CL focuses on .cc files in */internal/.)
Bug: chromium:1292951
PiperOrigin-RevId: 471561809
Change-Id: I7abd6d83706f5ca135f1ce3458192a498a6280b9
Addresses failures with the following, in some files:
-Wshorten-64-to-32
-Wimplicit-int-conversion
-Wsign-compare
-Wsign-conversion
-Wtautological-unsigned-zero-compare
(This specific CL focuses on .cc files in */internal/.)
Bug: chromium:1292951
PiperOrigin-RevId: 471549854
Change-Id: Id685d0e4666212926f4e001b8ef4930b6a33a4cc
Addresses failures with the following, in some files:
-Wshorten-64-to-32
-Wimplicit-int-conversion
-Wsign-compare
-Wsign-conversion
-Wtautological-unsigned-zero-compare
(This specific CL focuses on .cc files in dirs a-h.)
Bug: chromium:1292951
PiperOrigin-RevId: 464541951
Change-Id: If23b63ccea8e9b730159ff1c7288e9300a40b6bd
Addresses failures with the following, in some files:
-Wshorten-64-to-32
-Wimplicit-int-conversion
-Wsign-compare
-Wsign-conversion
-Wtautological-unsigned-zero-compare
(This specific CL focuses on .h and win32 .inc files.)
Bug: chromium:1292951
PiperOrigin-RevId: 463835431
Change-Id: If8e5f7f651d5cd96035e23e4623bdb08a7fedabe
This change introduces the symbol
ABSL_INTERNAL_NEED_REDUNDANT_CONSTEXPR_DECL
to guard redundant declarations of static constexpr data
members that are needed prior to C++17.
This change also introduces the symbol
ABSL_INTERNAL_CPLUSPLUS_LANG, which is supposed to be set
to the same value as __cplusplus, except it uses _MSVC_LANG
on MSVC so that the value is correct on MSVC.
Neither of these new symbols should be used outside of Abseil.
Fixes#1191
PiperOrigin-RevId: 453923908
Change-Id: I1316c52c19fa0c168b93cced0c817e4cb7c9c862
