go, branch go1.17.6

[release-branch.go1.17] go1.17.6

2022-01-06T19:06:43Z

Change-Id: I66a51a8fb3405395c066db37195e7e2a5c44a2d6 Reviewed-on: https://go-review.googlesource.com/c/go/+/375975 Trust: Carlos Amedee Run-TryBot: Carlos Amedee TryBot-Result: Gopher Robot Reviewed-by: Than McIntosh

[release-branch.go1.17] net/http: update bundled golang.org/x/net/http2

2022-01-06T15:30:17Z

Pull in approved backports to golang.org/x/net/http2: 21a9c9c http2: prioritize RST_STREAM frames in random write scheduler By doing: $ go get -d golang.org/x/net@internal-branch.go1.17-vendor $ go mod tidy $ go mod vendor $ go generate -run=bundle std Fixes #49921 Change-Id: I04739a30d84a8ae449374eca8bb11c7d2d215ad9 Reviewed-on: https://go-review.googlesource.com/c/go/+/375814 Run-TryBot: Carlos Amedee TryBot-Result: Gopher Robot Reviewed-by: Dmitri Shuralyov Trust: Carlos Amedee

[release-branch.go1.17] cmd/link: use SHT_INIT_ARRAY for .init_array section

2022-01-05T18:14:20Z

For #50295 Fixes #50297 Change-Id: If55ebcd5f2af724da7c9c744458a56d21a7ddde7 Reviewed-on: https://go-review.googlesource.com/c/go/+/373734 Trust: Ian Lance Taylor Reviewed-by: Cherry Mui (cherry picked from commit cfb0cc355233d4367b188b23a3bc143985a28b8c) Reviewed-on: https://go-review.googlesource.com/c/go/+/374194 Run-TryBot: Ian Lance Taylor Reviewed-by: Austin Clements TryBot-Result: Gopher Robot

[release-branch.go1.17] runtime: set iOS addr space to 40 bits with incremental pagealloc

2021-12-22T22:05:22Z

In iOS <14, the address space is strictly limited to 8 GiB, or 33 bits. As a result, the page allocator also assumes all heap memory lives in this region. This is especially necessary because the page allocator has a PROT_NONE mapping proportional to the size of the usable address space, so this keeps that mapping very small. However starting with iOS 14, this restriction is relaxed, and mmap may start returning addresses outside of the <14 range. Today this means that in iOS 14 and later, users experience an error in the page allocator when a heap arena is mapped outside of the old range. This change increases the ios/arm64 heapAddrBits to 40 while simultaneously making ios/arm64 use the 64-bit pagealloc implementation (with reservations and incremental mapping) to accommodate both iOS versions <14 and 14+. Once iOS <14 is deprecated, we can remove these exceptions and treat ios/arm64 like any other arm64 platform. This change also makes the BaseChunkIdx expression a little bit easier to read, while we're here. For #46860. Fixes #48116. Change-Id: I13865f799777739109585f14f1cc49d6d57e096b Reviewed-on: https://go-review.googlesource.com/c/go/+/344401 Trust: Michael Knyszek Run-TryBot: Michael Knyszek TryBot-Result: Gopher Robot Reviewed-by: Cherry Mui Reviewed-by: Austin Clements (cherry picked from commit af368da0b137116faba81ca249a8d964297e6e45) Reviewed-on: https://go-review.googlesource.com/c/go/+/369737

[release-branch.go1.17] runtime/race: rebuild darwin syso to work around macOS 12 malloc reserved address

2021-12-22T16:58:09Z

On macOS 12 a new malloc implementation (nano) is used by default, and apparently it reserves address range 0x600000000000-0x600020000000, which conflicts with the address range that TSAN uses for Go. Work around the issue by changing the address range slightly. The actual change is made on LLVM at https://reviews.llvm.org/D114825 . This CL includes syso's built with the patch applied. The syso in 1.17 was identical to the syso before the equivalent fix on the main branch, so the back-ported syso is identical to the fixed syso on the main branch. Fixes #50073. Updates #49138. Change-Id: I7b367d6e042b0db39a691c71601c98e4f8728a70 Reviewed-on: https://go-review.googlesource.com/c/go/+/367916 Trust: Cherry Mui Reviewed-by: Austin Clements (cherry picked from commit 5f6552018d1ec920c3ca3d459691528f48363c3c) Reviewed-on: https://go-review.googlesource.com/c/go/+/370697

[release-branch.go1.17] cmd/compile: avoid adding LECall to the entry block when has opendefers

2021-12-21T23:28:20Z

The openDeferRecord always insert vardef/varlive pairs into the entry block, it may destroy the mem chain when LECall's args are writing into the same block. So create a new block before that happens. Fixes #49413 Change-Id: Ibda6c4a45d960dd412a641f5e02276f663c80785 Reviewed-on: https://go-review.googlesource.com/c/go/+/361410 Run-TryBot: Alberto Donizetti TryBot-Result: Go Bot Trust: Alberto Donizetti Trust: Than McIntosh Reviewed-by: David Chase (cherry picked from commit 4f083c7dcf6ace3e837b337e10cf2f4e3160677e) Reviewed-on: https://go-review.googlesource.com/c/go/+/362054 Reviewed-by: Keith Randall Trust: Matthew Dempsky Run-TryBot: Dmitri Shuralyov TryBot-Result: Gopher Robot

[release-branch.go1.17] reflect: keep pointer in aggregate-typed args live in Call

2021-12-21T22:57:03Z

When register ABI is used, reflect.Value.Call prepares the call arguments in a memory representation of the argument registers. It has special handling to keep the pointers in arguments live. Currently, this handles pointer-typed arguments. But when an argument is an aggregate-type that contains pointers and passed in registers, it currently doesn't keep the pointers live. Do so in this CL. Fixes #49961 Change-Id: I9264a8767e2a2c48573f6047144759b845dcf480 Reviewed-on: https://go-review.googlesource.com/c/go/+/369098 Trust: Keith Randall Run-TryBot: Keith Randall Reviewed-by: Cherry Mui TryBot-Result: Gopher Robot Reviewed-by: Michael Knyszek

[release-branch.go1.17] all: update vendored golang.org/x/crypto for cryptobyte fix

2021-12-21T21:52:46Z

Updates #49678 Fixes #50165 Change-Id: I47dd959a787180a67856e60dfa6eba3ddd045972 Reviewed-on: https://go-review.googlesource.com/c/go/+/373361 Trust: Filippo Valsorda Run-TryBot: Filippo Valsorda Reviewed-by: Emmanuel Odeke Reviewed-by: Julie Qiu TryBot-Result: Gopher Robot

[release-branch.go1.17] go1.17.5

2021-12-09T13:44:55Z

Change-Id: Ief6fb9e836c1d40ece56868d65ebf65f74e65665 Reviewed-on: https://go-review.googlesource.com/c/go/+/370555 Trust: Alex Rakoczy Run-TryBot: Alex Rakoczy Reviewed-by: Filippo Valsorda TryBot-Result: Gopher Robot

[release-branch.go1.17] net/http: update bundled golang.org/x/net/http2

2021-12-09T13:07:36Z

Pull in security fix 84cba54 http2: cap the size of the server's canonical header cache Updates #50058 Fixes CVE-2021-44716 Change-Id: Ia89e3d22a173c6cb83f03608d5186fcd08f2956c Reviewed-on: https://go-review.googlesource.com/c/go/+/370574 Trust: Filippo Valsorda Run-TryBot: Filippo Valsorda Reviewed-by: Alex Rakoczy TryBot-Result: Gopher Robot