package/go: bump to version 1.20.6

The latest Go release, version 1.20, arrives six months after Go 1.19. Most of
its changes are in the implementation of the toolchain, runtime, and libraries.

https://go.dev/doc/go1.20
https://go.dev/doc/devel/release#go1.20.6
https://github.com/golang/go/issues?q=milestone%3AGo1.20.6+label%3ACherryPickApproved

Signed-off-by: Christian Stewart <christian@aperture.us>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>

package/go/0003-runtime-support-riscv64-SV57-mode.patch

@@ -1,65 +0,0 @@
-From 6618c7af436488fa12018cdcd31eeedb3a698745 Mon Sep 17 00:00:00 2001
-From: Dmitry Vyukov <dvyukov@google.com>
-Date: Fri, 27 May 2022 18:55:35 +0200
-Subject: [PATCH] runtime: support riscv64 SV57 mode
-
-Riscv64 has SV57 mode when user-space VA is 56 bits.
-Linux kernel recently got support for this mode and Go binaries started crashing as:
-
-runtime: lfstack.push invalid packing: node=0xffffff5908a940 cnt=0x1
-packed=0xffff5908a9400001 -> node=0xffff5908a940
-
-Adjust lfstack code to use only 8 top bits of pointers on riscv64.
-
-For context see:
-https://groups.google.com/g/syzkaller-bugs/c/lU0GQTZoNQQ/m/O_c3vmE3AAAJ
-
-Update #54104
-
-Change-Id: Ib5d3d6a79c0c6eddf11618d73fcc8bc1832a9c25
-Signed-off-by: Christian Stewart <christian@paral.in>
----
-
-Upstream: https://go-review.googlesource.com/c/go/+/409055/4
----
- src/runtime/lfstack_64bit.go | 12 ++++++++++++
- 1 file changed, 12 insertions(+)
-
-diff --git a/src/runtime/lfstack_64bit.go b/src/runtime/lfstack_64bit.go
-index 154130cf63..39fa647b9e 100644
---- a/src/runtime/lfstack_64bit.go
-+++ b/src/runtime/lfstack_64bit.go
-@@ -36,12 +36,21 @@ const (
- 	// We use one bit to distinguish between the two ranges.
- 	aixAddrBits = 57
- 	aixCntBits  = 64 - aixAddrBits + 3
-+
-+	// Riscv64 SV57 mode gives 56 bits of userspace VA.
-+	// lfstack code supports it, but broader support for SV57 mode is incomplete,
-+	// and there may be other issues (see #54104).
-+	riscv64AddrBits = 56
-+	riscv64CntBits  = 64 - riscv64AddrBits + 3
- )
- 
- func lfstackPack(node *lfnode, cnt uintptr) uint64 {
- 	if GOARCH == "ppc64" && GOOS == "aix" {
- 		return uint64(uintptr(unsafe.Pointer(node)))<<(64-aixAddrBits) | uint64(cnt&(1<<aixCntBits-1))
- 	}
-+	if GOARCH == "riscv64" {
-+		return uint64(uintptr(unsafe.Pointer(node)))<<(64-riscv64AddrBits) | uint64(cnt&(1<<riscv64CntBits-1))
-+	}
- 	return uint64(uintptr(unsafe.Pointer(node)))<<(64-addrBits) | uint64(cnt&(1<<cntBits-1))
- }
- 
-@@ -54,5 +63,8 @@ func lfstackUnpack(val uint64) *lfnode {
- 	if GOARCH == "ppc64" && GOOS == "aix" {
- 		return (*lfnode)(unsafe.Pointer(uintptr((val >> aixCntBits << 3) | 0xa<<56)))
- 	}
-+	if GOARCH == "riscv64" {
-+		return (*lfnode)(unsafe.Pointer(uintptr(val >> riscv64CntBits << 3)))
-+	}
- 	return (*lfnode)(unsafe.Pointer(uintptr(val >> cntBits << 3)))
- }
--- 
-2.35.1
-

package/go/go.hash

@@ -1,3 +1,3 @@
 # From https://go.dev/dl
-sha256  e25c9ab72d811142b7f41ff6da5165fec2d1be5feec3ef2c66bc0bdecb431489  go1.19.11.src.tar.gz
+sha256  62ee5bc6fb55b8bae8f705e0cb8df86d6453626b4ecf93279e2867092e0b7f70  go1.20.6.src.tar.gz
 sha256  2d36597f7117c38b006835ae7f537487207d8ec407aa9d9980794b2030cbc067  LICENSE

package/go/go.mk

@@ -4,7 +4,7 @@
 #
 ################################################################################
 
-GO_VERSION = 1.19.11
+GO_VERSION = 1.20.6
 GO_SITE = https://storage.googleapis.com/golang
 GO_SOURCE = go$(GO_VERSION).src.tar.gz
 
@@ -151,7 +151,7 @@ define HOST_GO_INSTALL_CMDS
 	cp -a $(@D)/lib $(HOST_GO_ROOT)/
 
 	mkdir -p $(HOST_GO_ROOT)/pkg
-	cp -a $(@D)/pkg/include $(@D)/pkg/linux_* $(HOST_GO_ROOT)/pkg/
+	cp -a $(@D)/pkg/include $(HOST_GO_ROOT)/pkg/
 	cp -a $(@D)/pkg/tool $(HOST_GO_ROOT)/pkg/
 
 	# The Go sources must be installed to the host/ tree for the Go stdlib.