Merge branch 'alexnask-bundle_compiler_rt' into master

update to latest fetch-them-macos-headers

move std.SegmentedList to the std-lib-orphanage

add std.os.shutdown function for sockets

Fix WindowsDynLib.openW trying to strip the \??\ prefix when it does not exist

Switch to using unicode when parsing the command line on windows (#7241)

fix memory leak in BufMap

macOS headers: add memory.h

stage1: add some code comments for ConstValSpecial

CLI: add missing usage help text

Merge pull request #7116 from joachimschmidt557/stage2-arm

stage1: Fix typeInfo generation for arrays w/o sentinel

stage1: Add missing bitcast when rendering var ptr

std.meta: add assumeSentinel

Merge pull request #7237 from koachan/sparc64-longdouble_fork

std: Avoid deadlock in the signal handler

Add readAllArrayListAligned to Reader which can accept an arbitrary alignment

Merge branch 'kubkon-elf-soname-opt-in' into master

Merge pull request #7198 from LemonBoy/freebsd-lock

stage1: Fix crash in *[N]T to []T conversion with zst

Merge pull request #7231 from kubkon/stage2-arm-macos

CONTRIBUTING: src-self-hosted -> src

stage1: Force union member types to be resolved

std/os: fix prctl constants

Merge pull request #6411 from LemonBoy/fff

std: use mem.asBytes in Ip4Address.parse so it works at comptime

std/crypto - edwards25519 precomp: prefer doublings over adds

stage1: Fix ICE when generating struct fields with padding

update stack trace test with new start.zig line number

make start code more versatile

fix for GCC 9.2: -Wno-maybe-uninitialized

Update the minimum cmake version we require

Merge pull request #7204 from LemonBoy/piecrash

Support PIE (Position Independent Executables)

update grammar in langref

std: add support for ppoll

std: Add test for meta.declarations on opaque{}

Merge pull request #7182 from LemonBoy/externnnn

Merge pull request #7165 from LemonBoy/ppc64final

std/os: define and use dev_t for linux x86_64

openbsd: malloc_usable_size is unavailable on OpenBSD

std/os: add time_t definiton for x86_64 linux

stage1: Resolve usingnamespace decls when calling @typeInfo

Merge pull request #6928 from data-man/reduce_tests

Merge pull request #7160 from semarie/openbsd-getdents

std.meta.declarations: support opaque {}

Merge pull request #6390 from LemonBoy/reboot-3970

std: Disable _only_ the flaky part of the ResetEvent test

stage2: Make zig cc more verbose (#7166)

tfw you can't even disable a test without getting the logic wrong

Merge pull request #6829 from tadeokondrak/error-unsupported-callconv

Add builtin.Signedness, use it instead of is_signed

stage1: Fix undefined assignment for bitfields

add std.heap.raw_c_allocator

Merge pull request #6385 from LemonBoy/callocator

Change seed for Murmur2_64 from u32 to u64

Merge pull request #7154 from daurnimator/std.atomic

stage1: improve error for missing a number type on a runtime var

std: add chdir smoke test

Move utf8->utf16 up one level into os.zig

use else in err switch

Switch to RtlSetCurrentDirectory_U

Implement chdir and chdirZ for Windows

Merge pull request #6434 from daurnimator/fifo.pump

Merge pull request #6649 from Rocknest/verparse

std: expose all atomic operations from std.atomic.Int

make help in commands more consistent

Change error when runtime value passed to comptime arg

stage1: Reject undefined values when taking union ptr

Added std.meta.fieldNames

Merge pull request #7005 from jshholland/deprecate-span

Allow Zig to be built with clang 11 and -Werror

stage1: Add architecture-specific clobbers to asm()

Merge pull request #7084 from xackus/mem-volatile

std: make meta.IntType a compile error

stage2 aarch64: assert register is 64bits in PCrel

stage2 aarch64: add PC relative address instructions

std: openDirAbsolute and accessAbsolute (#7082)

disable the flaky ResetEvent test

std/crypto: use NAF for multi-scalar edwards25519 multiplication

std/crypto: implement the Hash-To-Curve standard for Edwards25519

stage1: Fix asyncCall with non-abi-aligned arguments

cli: make -h, --help consistent in usage text and parsing

macOS libc headers: downgrade to 10.15.7 (Catalina)

Merge pull request #7032 from GuoxinYin/master

std.crypto.isap: fix callsites of secureZero

Merge branch 'johnLate-issue-6724-cmake' into master

std/crypto: add ISAPv2 (ISAP-A-128a) AEAD

start.zig: call wWinMain with root's type

Move leb128 and remove trivial *mem functions as discussed in #5588 (#6876)

Merge pull request #6878 from frmdstryr/multiline-string-comments

linuxWaitFd: make NetworkSubsystemFailed error unreachable

Prevent double file close in MachO linking

Enable loop interleaving when unrolling is enabled

Merge pull request #7002 from jedisct1/timingSafeEqlMinimal

stage2 aarch64: add NOP instruction

libstd: add more MachO consts and structs

std: Make windows.ReadFile allow short reads

Merge pull request #7112 from LemonBoy/fix-7104

Azure Pipelines CI: update msys2 to the current version