go, branch go1.16.13

[release-branch.go1.16] go1.16.13

2022-01-06T19:06:36Z

Change-Id: I267f3a5923e7154c72d18d76ecab1a9b1a0ec472 Reviewed-on: https://go-review.googlesource.com/c/go/+/375976 Trust: Carlos Amedee Run-TryBot: Carlos Amedee TryBot-Result: Gopher Robot Reviewed-by: Than McIntosh

[release-branch.go1.16] net/http: update bundled golang.org/x/net/http2

2022-01-06T15:30:21Z

Pull in approved backports to golang.org/x/net/http2: aa5a62b http2: prioritize RST_STREAM frames in random write scheduler By doing: $ go get -d golang.org/x/net@internal-branch.go1.16-vendor $ go mod tidy $ go mod vendor $ go generate -run=bundle std Fixes #50449 Change-Id: I4a6a8ae943d2d1705209e648a63421914062d3e4 Reviewed-on: https://go-review.googlesource.com/c/go/+/375815 Reviewed-by: Dmitri Shuralyov Run-TryBot: Carlos Amedee TryBot-Result: Gopher Robot Trust: Carlos Amedee

[release-branch.go1.16] cmd/link: use SHT_INIT_ARRAY for .init_array section

2022-01-05T18:14:31Z

For #50295 Fixes #50296 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/+/374234 Run-TryBot: Ian Lance Taylor TryBot-Result: Gopher Robot Reviewed-by: Austin Clements

[release-branch.go1.16] runtime: set iOS addr space to 40 bits with incremental pagealloc

2021-12-22T22:05:01Z

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 #48115. 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/+/369736 Run-TryBot: Dmitri Shuralyov

[release-branch.go1.16] runtime/race: rebuild darwin syso to work around macOS 12 malloc reserved address

2021-12-22T16:58:04Z

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 1.16 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 #50072. 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/+/370698

[release-branch.go1.16] cmd/compile: avoid adding LECall to the entry block when has opendefers

2021-12-21T23:28:43Z

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 #49412 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/+/362055 Reviewed-by: Keith Randall Trust: Michael Knyszek Run-TryBot: Dmitri Shuralyov TryBot-Result: Gopher Robot

[release-branch.go1.16] runtime/race: use race build tag on syso_test.go

2021-12-21T19:08:16Z

All other test files in the runtime/race package have race build tag, except syso_test.go. The test is only relevant if the race detector is supported. So apply the build tag. Updates #46931. Fixes #50194. Change-Id: Icdb94214d3821b4ccf61133412ef39b4d7cc7691 Reviewed-on: https://go-review.googlesource.com/c/go/+/331050 Trust: Cherry Mui Reviewed-by: Elias Naur Run-TryBot: Cherry Mui TryBot-Result: Go Bot (cherry picked from commit ed01ceaf4838cd67fd802df481769fa9ae9d0440) Reviewed-on: https://go-review.googlesource.com/c/go/+/372218 Reviewed-by: Dmitri Shuralyov Run-TryBot: Dmitri Shuralyov TryBot-Result: Gopher Robot

[release-branch.go1.16] Reapply "cmd/link: support more load commands on Mach-O"

2021-12-15T19:08:45Z

This reverts commit caced3b213e879b2af0508f5f6a2d3bb3d6ef2a9 (CL 370554). Reason for revert: Minor release complete. Updates #49923. Change-Id: Ifb9fc4f6aae6313ce726726c4ec469032ed3147d Reviewed-on: https://go-review.googlesource.com/c/go/+/372354 Reviewed-by: Cherry Mui Reviewed-by: Alex Rakoczy Trust: Heschi Kreinick

[release-branch.go1.16] go1.16.12

2021-12-09T13:44:57Z

Change-Id: I336b7203a30b17c738f1711dc4dc7654a3d17ed8 Reviewed-on: https://go-review.googlesource.com/c/go/+/370556 Trust: Alex Rakoczy Run-TryBot: Alex Rakoczy Reviewed-by: Filippo Valsorda TryBot-Result: Gopher Robot

[release-branch.go1.16] net/http: update bundled golang.org/x/net/http2

2021-12-09T13:10:36Z

Pull in security fix a5309b3 http2: cap the size of the server's canonical header cache Updates #50058 Fixes CVE-2021-44716 Change-Id: Ifdd13f97fce168de5fb4b2e74ef2060d059800b9 Reviewed-on: https://go-review.googlesource.com/c/go/+/370575 Trust: Filippo Valsorda Run-TryBot: Filippo Valsorda Reviewed-by: Alex Rakoczy TryBot-Result: Gopher Robot