update to latest dependencies

vendor/golang.org/x/sys/cpu/cpu.go

@@ -201,6 +201,25 @@ var S390X struct {
 	_         CacheLinePad
 }
 
+// RISCV64 contains the supported CPU features and performance characteristics for riscv64
+// platforms. The booleans in RISCV64, with the exception of HasFastMisaligned, indicate
+// the presence of RISC-V extensions.
+//
+// It is safe to assume that all the RV64G extensions are supported and so they are omitted from
+// this structure. As riscv64 Go programs require at least RV64G, the code that populates
+// this structure cannot run successfully if some of the RV64G extensions are missing.
+// The struct is padded to avoid false sharing.
+var RISCV64 struct {
+	_                 CacheLinePad
+	HasFastMisaligned bool // Fast misaligned accesses
+	HasC              bool // Compressed instruction-set extension
+	HasV              bool // Vector extension compatible with RVV 1.0
+	HasZba            bool // Address generation instructions extension
+	HasZbb            bool // Basic bit-manipulation extension
+	HasZbs            bool // Single-bit instructions extension
+	_                 CacheLinePad
+}
+
 func init() {
 	archInit()
 	initOptions()

vendor/golang.org/x/sys/cpu/cpu_linux_noinit.go

@@ -2,7 +2,7 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
-//go:build linux && !arm && !arm64 && !mips64 && !mips64le && !ppc64 && !ppc64le && !s390x
+//go:build linux && !arm && !arm64 && !mips64 && !mips64le && !ppc64 && !ppc64le && !s390x && !riscv64
 
 package cpu
 

vendor/golang.org/x/sys/cpu/cpu_linux_riscv64.go

@@ -0,0 +1,137 @@
+// Copyright 2024 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package cpu
+
+import (
+	"syscall"
+	"unsafe"
+)
+
+// RISC-V extension discovery code for Linux. The approach here is to first try the riscv_hwprobe
+// syscall falling back to HWCAP to check for the C extension if riscv_hwprobe is not available.
+//
+// A note on detection of the Vector extension using HWCAP.
+//
+// Support for the Vector extension version 1.0 was added to the Linux kernel in release 6.5.
+// Support for the riscv_hwprobe syscall was added in 6.4. It follows that if the riscv_hwprobe
+// syscall is not available then neither is the Vector extension (which needs kernel support).
+// The riscv_hwprobe syscall should then be all we need to detect the Vector extension.
+// However, some RISC-V board manufacturers ship boards with an older kernel on top of which
+// they have back-ported various versions of the Vector extension patches but not the riscv_hwprobe
+// patches. These kernels advertise support for the Vector extension using HWCAP. Falling
+// back to HWCAP to detect the Vector extension, if riscv_hwprobe is not available, or simply not
+// bothering with riscv_hwprobe at all and just using HWCAP may then seem like an attractive option.
+//
+// Unfortunately, simply checking the 'V' bit in AT_HWCAP will not work as this bit is used by
+// RISC-V board and cloud instance providers to mean different things. The Lichee Pi 4A board
+// and the Scaleway RV1 cloud instances use the 'V' bit to advertise their support for the unratified
+// 0.7.1 version of the Vector Specification. The Banana Pi BPI-F3 and the CanMV-K230 board use
+// it to advertise support for 1.0 of the Vector extension. Versions 0.7.1 and 1.0 of the Vector
+// extension are binary incompatible. HWCAP can then not be used in isolation to populate the
+// HasV field as this field indicates that the underlying CPU is compatible with RVV 1.0.
+//
+// There is a way at runtime to distinguish between versions 0.7.1 and 1.0 of the Vector
+// specification by issuing a RVV 1.0 vsetvli instruction and checking the vill bit of the vtype
+// register. This check would allow us to safely detect version 1.0 of the Vector extension
+// with HWCAP, if riscv_hwprobe were not available. However, the check cannot
+// be added until the assembler supports the Vector instructions.
+//
+// Note the riscv_hwprobe syscall does not suffer from these ambiguities by design as all of the
+// extensions it advertises support for are explicitly versioned. It's also worth noting that
+// the riscv_hwprobe syscall is the only way to detect multi-letter RISC-V extensions, e.g., Zba.
+// These cannot be detected using HWCAP and so riscv_hwprobe must be used to detect the majority
+// of RISC-V extensions.
+//
+// Please see https://docs.kernel.org/arch/riscv/hwprobe.html for more information.
+
+// golang.org/x/sys/cpu is not allowed to depend on golang.org/x/sys/unix so we must
+// reproduce the constants, types and functions needed to make the riscv_hwprobe syscall
+// here.
+
+const (
+	// Copied from golang.org/x/sys/unix/ztypes_linux_riscv64.go.
+	riscv_HWPROBE_KEY_IMA_EXT_0   = 0x4
+	riscv_HWPROBE_IMA_C           = 0x2
+	riscv_HWPROBE_IMA_V           = 0x4
+	riscv_HWPROBE_EXT_ZBA         = 0x8
+	riscv_HWPROBE_EXT_ZBB         = 0x10
+	riscv_HWPROBE_EXT_ZBS         = 0x20
+	riscv_HWPROBE_KEY_CPUPERF_0   = 0x5
+	riscv_HWPROBE_MISALIGNED_FAST = 0x3
+	riscv_HWPROBE_MISALIGNED_MASK = 0x7
+)
+
+const (
+	// sys_RISCV_HWPROBE is copied from golang.org/x/sys/unix/zsysnum_linux_riscv64.go.
+	sys_RISCV_HWPROBE = 258
+)
+
+// riscvHWProbePairs is copied from golang.org/x/sys/unix/ztypes_linux_riscv64.go.
+type riscvHWProbePairs struct {
+	key   int64
+	value uint64
+}
+
+const (
+	// CPU features
+	hwcap_RISCV_ISA_C = 1 << ('C' - 'A')
+)
+
+func doinit() {
+	// A slice of key/value pair structures is passed to the RISCVHWProbe syscall. The key
+	// field should be initialised with one of the key constants defined above, e.g.,
+	// RISCV_HWPROBE_KEY_IMA_EXT_0. The syscall will set the value field to the appropriate value.
+	// If the kernel does not recognise a key it will set the key field to -1 and the value field to 0.
+
+	pairs := []riscvHWProbePairs{
+		{riscv_HWPROBE_KEY_IMA_EXT_0, 0},
+		{riscv_HWPROBE_KEY_CPUPERF_0, 0},
+	}
+
+	// This call only indicates that extensions are supported if they are implemented on all cores.
+	if riscvHWProbe(pairs, 0) {
+		if pairs[0].key != -1 {
+			v := uint(pairs[0].value)
+			RISCV64.HasC = isSet(v, riscv_HWPROBE_IMA_C)
+			RISCV64.HasV = isSet(v, riscv_HWPROBE_IMA_V)
+			RISCV64.HasZba = isSet(v, riscv_HWPROBE_EXT_ZBA)
+			RISCV64.HasZbb = isSet(v, riscv_HWPROBE_EXT_ZBB)
+			RISCV64.HasZbs = isSet(v, riscv_HWPROBE_EXT_ZBS)
+		}
+		if pairs[1].key != -1 {
+			v := pairs[1].value & riscv_HWPROBE_MISALIGNED_MASK
+			RISCV64.HasFastMisaligned = v == riscv_HWPROBE_MISALIGNED_FAST
+		}
+	}
+
+	// Let's double check with HWCAP if the C extension does not appear to be supported.
+	// This may happen if we're running on a kernel older than 6.4.
+
+	if !RISCV64.HasC {
+		RISCV64.HasC = isSet(hwCap, hwcap_RISCV_ISA_C)
+	}
+}
+
+func isSet(hwc uint, value uint) bool {
+	return hwc&value != 0
+}
+
+// riscvHWProbe is a simplified version of the generated wrapper function found in
+// golang.org/x/sys/unix/zsyscall_linux_riscv64.go. We simplify it by removing the
+// cpuCount and cpus parameters which we do not need. We always want to pass 0 for
+// these parameters here so the kernel only reports the extensions that are present
+// on all cores.
+func riscvHWProbe(pairs []riscvHWProbePairs, flags uint) bool {
+	var _zero uintptr
+	var p0 unsafe.Pointer
+	if len(pairs) > 0 {
+		p0 = unsafe.Pointer(&pairs[0])
+	} else {
+		p0 = unsafe.Pointer(&_zero)
+	}
+
+	_, _, e1 := syscall.Syscall6(sys_RISCV_HWPROBE, uintptr(p0), uintptr(len(pairs)), uintptr(0), uintptr(0), uintptr(flags), 0)
+	return e1 == 0
+}

vendor/golang.org/x/sys/cpu/cpu_riscv64.go

@@ -8,4 +8,13 @@ package cpu
 
 const cacheLineSize = 64
 
-func initOptions() {}
+func initOptions() {
+	options = []option{
+		{Name: "fastmisaligned", Feature: &RISCV64.HasFastMisaligned},
+		{Name: "c", Feature: &RISCV64.HasC},
+		{Name: "v", Feature: &RISCV64.HasV},
+		{Name: "zba", Feature: &RISCV64.HasZba},
+		{Name: "zbb", Feature: &RISCV64.HasZbb},
+		{Name: "zbs", Feature: &RISCV64.HasZbs},
+	}
+}

vendor/golang.org/x/sys/unix/mkerrors.sh

@@ -552,6 +552,7 @@ ccflags="$@"
 		$2 !~ /^RTC_VL_(ACCURACY|BACKUP|DATA)/ &&
 		$2 ~ /^(NETLINK|NLM|NLMSG|NLA|IFA|IFAN|RT|RTC|RTCF|RTN|RTPROT|RTNH|ARPHRD|ETH_P|NETNSA)_/ ||
 		$2 ~ /^SOCK_|SK_DIAG_|SKNLGRP_$/ ||
+		$2 ~ /^(CONNECT|SAE)_/ ||
 		$2 ~ /^FIORDCHK$/ ||
 		$2 ~ /^SIOC/ ||
 		$2 ~ /^TIOC/ ||

vendor/golang.org/x/sys/unix/syscall_darwin.go

@@ -566,6 +566,43 @@ func PthreadFchdir(fd int) (err error) {
 	return pthread_fchdir_np(fd)
 }
 
+// Connectx calls connectx(2) to initiate a connection on a socket.
+//
+// srcIf, srcAddr, and dstAddr are filled into a [SaEndpoints] struct and passed as the endpoints argument.
+//
+//   - srcIf is the optional source interface index. 0 means unspecified.
+//   - srcAddr is the optional source address. nil means unspecified.
+//   - dstAddr is the destination address.
+//
+// On success, Connectx returns the number of bytes enqueued for transmission.
+func Connectx(fd int, srcIf uint32, srcAddr, dstAddr Sockaddr, associd SaeAssocID, flags uint32, iov []Iovec, connid *SaeConnID) (n uintptr, err error) {
+	endpoints := SaEndpoints{
+		Srcif: srcIf,
+	}
+
+	if srcAddr != nil {
+		addrp, addrlen, err := srcAddr.sockaddr()
+		if err != nil {
+			return 0, err
+		}
+		endpoints.Srcaddr = (*RawSockaddr)(addrp)
+		endpoints.Srcaddrlen = uint32(addrlen)
+	}
+
+	if dstAddr != nil {
+		addrp, addrlen, err := dstAddr.sockaddr()
+		if err != nil {
+			return 0, err
+		}
+		endpoints.Dstaddr = (*RawSockaddr)(addrp)
+		endpoints.Dstaddrlen = uint32(addrlen)
+	}
+
+	err = connectx(fd, &endpoints, associd, flags, iov, &n, connid)
+	return
+}
+
+//sys	connectx(fd int, endpoints *SaEndpoints, associd SaeAssocID, flags uint32, iov []Iovec, n *uintptr, connid *SaeConnID) (err error)
 //sys	sendfile(infd int, outfd int, offset int64, len *int64, hdtr unsafe.Pointer, flags int) (err error)
 
 //sys	shmat(id int, addr uintptr, flag int) (ret uintptr, err error)

vendor/golang.org/x/sys/unix/syscall_hurd.go

@@ -11,6 +11,7 @@ package unix
 int ioctl(int, unsigned long int, uintptr_t);
 */
 import "C"
+import "unsafe"
 
 func ioctl(fd int, req uint, arg uintptr) (err error) {
 	r0, er := C.ioctl(C.int(fd), C.ulong(req), C.uintptr_t(arg))

vendor/golang.org/x/sys/unix/zerrors_darwin_amd64.go

@@ -237,6 +237,9 @@ const (
 	CLOCK_UPTIME_RAW_APPROX                 = 0x9
 	CLONE_NOFOLLOW                          = 0x1
 	CLONE_NOOWNERCOPY                       = 0x2
+	CONNECT_DATA_AUTHENTICATED              = 0x4
+	CONNECT_DATA_IDEMPOTENT                 = 0x2
+	CONNECT_RESUME_ON_READ_WRITE            = 0x1
 	CR0                                     = 0x0
 	CR1                                     = 0x1000
 	CR2                                     = 0x2000
@@ -1265,6 +1268,10 @@ const (
 	RTV_SSTHRESH                            = 0x20
 	RUSAGE_CHILDREN                         = -0x1
 	RUSAGE_SELF                             = 0x0
+	SAE_ASSOCID_ALL                         = 0xffffffff
+	SAE_ASSOCID_ANY                         = 0x0
+	SAE_CONNID_ALL                          = 0xffffffff
+	SAE_CONNID_ANY                          = 0x0
 	SCM_CREDS                               = 0x3
 	SCM_RIGHTS                              = 0x1
 	SCM_TIMESTAMP                           = 0x2

vendor/golang.org/x/sys/unix/zerrors_darwin_arm64.go

@@ -237,6 +237,9 @@ const (
 	CLOCK_UPTIME_RAW_APPROX                 = 0x9
 	CLONE_NOFOLLOW                          = 0x1
 	CLONE_NOOWNERCOPY                       = 0x2
+	CONNECT_DATA_AUTHENTICATED              = 0x4
+	CONNECT_DATA_IDEMPOTENT                 = 0x2
+	CONNECT_RESUME_ON_READ_WRITE            = 0x1
 	CR0                                     = 0x0
 	CR1                                     = 0x1000
 	CR2                                     = 0x2000
@@ -1265,6 +1268,10 @@ const (
 	RTV_SSTHRESH                            = 0x20
 	RUSAGE_CHILDREN                         = -0x1
 	RUSAGE_SELF                             = 0x0
+	SAE_ASSOCID_ALL                         = 0xffffffff
+	SAE_ASSOCID_ANY                         = 0x0
+	SAE_CONNID_ALL                          = 0xffffffff
+	SAE_CONNID_ANY                          = 0x0
 	SCM_CREDS                               = 0x3
 	SCM_RIGHTS                              = 0x1
 	SCM_TIMESTAMP                           = 0x2

vendor/golang.org/x/sys/unix/zerrors_zos_s390x.go

@@ -581,6 +581,8 @@ const (
 	AT_EMPTY_PATH                   = 0x1000
 	AT_REMOVEDIR                    = 0x200
 	RENAME_NOREPLACE                = 1 << 0
+	ST_RDONLY                       = 1
+	ST_NOSUID                       = 2
 )
 
 const (

vendor/golang.org/x/sys/unix/zsyscall_darwin_amd64.go

@@ -841,6 +841,26 @@ var libc_pthread_fchdir_np_trampoline_addr uintptr
 
 // THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
 
+func connectx(fd int, endpoints *SaEndpoints, associd SaeAssocID, flags uint32, iov []Iovec, n *uintptr, connid *SaeConnID) (err error) {
+	var _p0 unsafe.Pointer
+	if len(iov) > 0 {
+		_p0 = unsafe.Pointer(&iov[0])
+	} else {
+		_p0 = unsafe.Pointer(&_zero)
+	}
+	_, _, e1 := syscall_syscall9(libc_connectx_trampoline_addr, uintptr(fd), uintptr(unsafe.Pointer(endpoints)), uintptr(associd), uintptr(flags), uintptr(_p0), uintptr(len(iov)), uintptr(unsafe.Pointer(n)), uintptr(unsafe.Pointer(connid)), 0)
+	if e1 != 0 {
+		err = errnoErr(e1)
+	}
+	return
+}
+
+var libc_connectx_trampoline_addr uintptr
+
+//go:cgo_import_dynamic libc_connectx connectx "/usr/lib/libSystem.B.dylib"
+
+// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
+
 func sendfile(infd int, outfd int, offset int64, len *int64, hdtr unsafe.Pointer, flags int) (err error) {
 	_, _, e1 := syscall_syscall6(libc_sendfile_trampoline_addr, uintptr(infd), uintptr(outfd), uintptr(offset), uintptr(unsafe.Pointer(len)), uintptr(hdtr), uintptr(flags))
 	if e1 != 0 {

vendor/golang.org/x/sys/unix/zsyscall_darwin_amd64.s

@@ -248,6 +248,11 @@ TEXT libc_pthread_fchdir_np_trampoline<>(SB),NOSPLIT,$0-0
 GLOBL	·libc_pthread_fchdir_np_trampoline_addr(SB), RODATA, $8
 DATA	·libc_pthread_fchdir_np_trampoline_addr(SB)/8, $libc_pthread_fchdir_np_trampoline<>(SB)
 
+TEXT libc_connectx_trampoline<>(SB),NOSPLIT,$0-0
+	JMP	libc_connectx(SB)
+GLOBL	·libc_connectx_trampoline_addr(SB), RODATA, $8
+DATA	·libc_connectx_trampoline_addr(SB)/8, $libc_connectx_trampoline<>(SB)
+
 TEXT libc_sendfile_trampoline<>(SB),NOSPLIT,$0-0
 	JMP	libc_sendfile(SB)
 GLOBL	·libc_sendfile_trampoline_addr(SB), RODATA, $8

vendor/golang.org/x/sys/unix/zsyscall_darwin_arm64.go

@@ -841,6 +841,26 @@ var libc_pthread_fchdir_np_trampoline_addr uintptr
 
 // THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
 
+func connectx(fd int, endpoints *SaEndpoints, associd SaeAssocID, flags uint32, iov []Iovec, n *uintptr, connid *SaeConnID) (err error) {
+	var _p0 unsafe.Pointer
+	if len(iov) > 0 {
+		_p0 = unsafe.Pointer(&iov[0])
+	} else {
+		_p0 = unsafe.Pointer(&_zero)
+	}
+	_, _, e1 := syscall_syscall9(libc_connectx_trampoline_addr, uintptr(fd), uintptr(unsafe.Pointer(endpoints)), uintptr(associd), uintptr(flags), uintptr(_p0), uintptr(len(iov)), uintptr(unsafe.Pointer(n)), uintptr(unsafe.Pointer(connid)), 0)
+	if e1 != 0 {
+		err = errnoErr(e1)
+	}
+	return
+}
+
+var libc_connectx_trampoline_addr uintptr
+
+//go:cgo_import_dynamic libc_connectx connectx "/usr/lib/libSystem.B.dylib"
+
+// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
+
 func sendfile(infd int, outfd int, offset int64, len *int64, hdtr unsafe.Pointer, flags int) (err error) {
 	_, _, e1 := syscall_syscall6(libc_sendfile_trampoline_addr, uintptr(infd), uintptr(outfd), uintptr(offset), uintptr(unsafe.Pointer(len)), uintptr(hdtr), uintptr(flags))
 	if e1 != 0 {

vendor/golang.org/x/sys/unix/zsyscall_darwin_arm64.s

@@ -248,6 +248,11 @@ TEXT libc_pthread_fchdir_np_trampoline<>(SB),NOSPLIT,$0-0
 GLOBL	·libc_pthread_fchdir_np_trampoline_addr(SB), RODATA, $8
 DATA	·libc_pthread_fchdir_np_trampoline_addr(SB)/8, $libc_pthread_fchdir_np_trampoline<>(SB)
 
+TEXT libc_connectx_trampoline<>(SB),NOSPLIT,$0-0
+	JMP	libc_connectx(SB)
+GLOBL	·libc_connectx_trampoline_addr(SB), RODATA, $8
+DATA	·libc_connectx_trampoline_addr(SB)/8, $libc_connectx_trampoline<>(SB)
+
 TEXT libc_sendfile_trampoline<>(SB),NOSPLIT,$0-0
 	JMP	libc_sendfile(SB)
 GLOBL	·libc_sendfile_trampoline_addr(SB), RODATA, $8

vendor/golang.org/x/sys/unix/ztypes_darwin_amd64.go

@@ -306,6 +306,19 @@ type XVSockPgen struct {
 
 type _Socklen uint32
 
+type SaeAssocID uint32
+
+type SaeConnID uint32
+
+type SaEndpoints struct {
+	Srcif      uint32
+	Srcaddr    *RawSockaddr
+	Srcaddrlen uint32
+	Dstaddr    *RawSockaddr
+	Dstaddrlen uint32
+	_          [4]byte
+}
+
 type Xucred struct {
 	Version uint32
 	Uid     uint32

vendor/golang.org/x/sys/unix/ztypes_darwin_arm64.go

@@ -306,6 +306,19 @@ type XVSockPgen struct {
 
 type _Socklen uint32
 
+type SaeAssocID uint32
+
+type SaeConnID uint32
+
+type SaEndpoints struct {
+	Srcif      uint32
+	Srcaddr    *RawSockaddr
+	Srcaddrlen uint32
+	Dstaddr    *RawSockaddr
+	Dstaddrlen uint32
+	_          [4]byte
+}
+
 type Xucred struct {
 	Version uint32
 	Uid     uint32

vendor/golang.org/x/sys/unix/ztypes_freebsd_386.go

@@ -625,6 +625,7 @@ const (
 	POLLRDNORM   = 0x40
 	POLLWRBAND   = 0x100
 	POLLWRNORM   = 0x4
+	POLLRDHUP    = 0x4000
 )
 
 type CapRights struct {

vendor/golang.org/x/sys/unix/ztypes_freebsd_amd64.go

@@ -630,6 +630,7 @@ const (
 	POLLRDNORM   = 0x40
 	POLLWRBAND   = 0x100
 	POLLWRNORM   = 0x4
+	POLLRDHUP    = 0x4000
 )
 
 type CapRights struct {

vendor/golang.org/x/sys/unix/ztypes_freebsd_arm.go

@@ -616,6 +616,7 @@ const (
 	POLLRDNORM   = 0x40
 	POLLWRBAND   = 0x100
 	POLLWRNORM   = 0x4
+	POLLRDHUP    = 0x4000
 )
 
 type CapRights struct {

vendor/golang.org/x/sys/unix/ztypes_freebsd_arm64.go

@@ -610,6 +610,7 @@ const (
 	POLLRDNORM   = 0x40
 	POLLWRBAND   = 0x100
 	POLLWRNORM   = 0x4
+	POLLRDHUP    = 0x4000
 )
 
 type CapRights struct {

vendor/golang.org/x/sys/unix/ztypes_freebsd_riscv64.go

@@ -612,6 +612,7 @@ const (
 	POLLRDNORM   = 0x40
 	POLLWRBAND   = 0x100
 	POLLWRNORM   = 0x4
+	POLLRDHUP    = 0x4000
 )
 
 type CapRights struct {

vendor/golang.org/x/sys/unix/ztypes_linux.go

@@ -2486,7 +2486,7 @@ type XDPMmapOffsets struct {
 type XDPUmemReg struct {
 	Addr            uint64
 	Len             uint64
-	Chunk_size      uint32
+	Size            uint32
 	Headroom        uint32
 	Flags           uint32
 	Tx_metadata_len uint32

vendor/golang.org/x/sys/unix/ztypes_linux_riscv64.go

@@ -727,6 +727,37 @@ const (
 	RISCV_HWPROBE_EXT_ZBA                = 0x8
 	RISCV_HWPROBE_EXT_ZBB                = 0x10
 	RISCV_HWPROBE_EXT_ZBS                = 0x20
+	RISCV_HWPROBE_EXT_ZICBOZ             = 0x40
+	RISCV_HWPROBE_EXT_ZBC                = 0x80
+	RISCV_HWPROBE_EXT_ZBKB               = 0x100
+	RISCV_HWPROBE_EXT_ZBKC               = 0x200
+	RISCV_HWPROBE_EXT_ZBKX               = 0x400
+	RISCV_HWPROBE_EXT_ZKND               = 0x800
+	RISCV_HWPROBE_EXT_ZKNE               = 0x1000
+	RISCV_HWPROBE_EXT_ZKNH               = 0x2000
+	RISCV_HWPROBE_EXT_ZKSED              = 0x4000
+	RISCV_HWPROBE_EXT_ZKSH               = 0x8000
+	RISCV_HWPROBE_EXT_ZKT                = 0x10000
+	RISCV_HWPROBE_EXT_ZVBB               = 0x20000
+	RISCV_HWPROBE_EXT_ZVBC               = 0x40000
+	RISCV_HWPROBE_EXT_ZVKB               = 0x80000
+	RISCV_HWPROBE_EXT_ZVKG               = 0x100000
+	RISCV_HWPROBE_EXT_ZVKNED             = 0x200000
+	RISCV_HWPROBE_EXT_ZVKNHA             = 0x400000
+	RISCV_HWPROBE_EXT_ZVKNHB             = 0x800000
+	RISCV_HWPROBE_EXT_ZVKSED             = 0x1000000
+	RISCV_HWPROBE_EXT_ZVKSH              = 0x2000000
+	RISCV_HWPROBE_EXT_ZVKT               = 0x4000000
+	RISCV_HWPROBE_EXT_ZFH                = 0x8000000
+	RISCV_HWPROBE_EXT_ZFHMIN             = 0x10000000
+	RISCV_HWPROBE_EXT_ZIHINTNTL          = 0x20000000
+	RISCV_HWPROBE_EXT_ZVFH               = 0x40000000
+	RISCV_HWPROBE_EXT_ZVFHMIN            = 0x80000000
+	RISCV_HWPROBE_EXT_ZFA                = 0x100000000
+	RISCV_HWPROBE_EXT_ZTSO               = 0x200000000
+	RISCV_HWPROBE_EXT_ZACAS              = 0x400000000
+	RISCV_HWPROBE_EXT_ZICOND             = 0x800000000
+	RISCV_HWPROBE_EXT_ZIHINTPAUSE        = 0x1000000000
 	RISCV_HWPROBE_KEY_CPUPERF_0          = 0x5
 	RISCV_HWPROBE_MISALIGNED_UNKNOWN     = 0x0
 	RISCV_HWPROBE_MISALIGNED_EMULATED    = 0x1
@@ -734,4 +765,6 @@ const (
 	RISCV_HWPROBE_MISALIGNED_FAST        = 0x3
 	RISCV_HWPROBE_MISALIGNED_UNSUPPORTED = 0x4
 	RISCV_HWPROBE_MISALIGNED_MASK        = 0x7
+	RISCV_HWPROBE_KEY_ZICBOZ_BLOCK_SIZE  = 0x6
+	RISCV_HWPROBE_WHICH_CPUS             = 0x1
 )

vendor/golang.org/x/sys/windows/syscall_windows.go

@@ -313,6 +313,10 @@ func NewCallbackCDecl(fn interface{}) uintptr {
 //sys	SetConsoleMode(console Handle, mode uint32) (err error) = kernel32.SetConsoleMode
 //sys	GetConsoleScreenBufferInfo(console Handle, info *ConsoleScreenBufferInfo) (err error) = kernel32.GetConsoleScreenBufferInfo
 //sys	setConsoleCursorPosition(console Handle, position uint32) (err error) = kernel32.SetConsoleCursorPosition
+//sys	GetConsoleCP() (cp uint32, err error) = kernel32.GetConsoleCP
+//sys	GetConsoleOutputCP() (cp uint32, err error) = kernel32.GetConsoleOutputCP
+//sys	SetConsoleCP(cp uint32) (err error) = kernel32.SetConsoleCP
+//sys	SetConsoleOutputCP(cp uint32) (err error) = kernel32.SetConsoleOutputCP
 //sys	WriteConsole(console Handle, buf *uint16, towrite uint32, written *uint32, reserved *byte) (err error) = kernel32.WriteConsoleW
 //sys	ReadConsole(console Handle, buf *uint16, toread uint32, read *uint32, inputControl *byte) (err error) = kernel32.ReadConsoleW
 //sys	resizePseudoConsole(pconsole Handle, size uint32) (hr error) = kernel32.ResizePseudoConsole

vendor/golang.org/x/sys/windows/types_windows.go

@@ -1060,6 +1060,7 @@ const (
 	SIO_GET_EXTENSION_FUNCTION_POINTER = IOC_INOUT | IOC_WS2 | 6
 	SIO_KEEPALIVE_VALS                 = IOC_IN | IOC_VENDOR | 4
 	SIO_UDP_CONNRESET                  = IOC_IN | IOC_VENDOR | 12
+	SIO_UDP_NETRESET                   = IOC_IN | IOC_VENDOR | 15
 
 	// cf. http://support.microsoft.com/default.aspx?scid=kb;en-us;257460
 

vendor/golang.org/x/sys/windows/zsyscall_windows.go

@@ -247,7 +247,9 @@ var (
 	procGetCommandLineW                                      = modkernel32.NewProc("GetCommandLineW")
 	procGetComputerNameExW                                   = modkernel32.NewProc("GetComputerNameExW")
 	procGetComputerNameW                                     = modkernel32.NewProc("GetComputerNameW")
+	procGetConsoleCP                                         = modkernel32.NewProc("GetConsoleCP")
 	procGetConsoleMode                                       = modkernel32.NewProc("GetConsoleMode")
+	procGetConsoleOutputCP                                   = modkernel32.NewProc("GetConsoleOutputCP")
 	procGetConsoleScreenBufferInfo                           = modkernel32.NewProc("GetConsoleScreenBufferInfo")
 	procGetCurrentDirectoryW                                 = modkernel32.NewProc("GetCurrentDirectoryW")
 	procGetCurrentProcessId                                  = modkernel32.NewProc("GetCurrentProcessId")
@@ -347,8 +349,10 @@ var (
 	procSetCommMask                                          = modkernel32.NewProc("SetCommMask")
 	procSetCommState                                         = modkernel32.NewProc("SetCommState")
 	procSetCommTimeouts                                      = modkernel32.NewProc("SetCommTimeouts")
+	procSetConsoleCP                                         = modkernel32.NewProc("SetConsoleCP")
 	procSetConsoleCursorPosition                             = modkernel32.NewProc("SetConsoleCursorPosition")
 	procSetConsoleMode                                       = modkernel32.NewProc("SetConsoleMode")
+	procSetConsoleOutputCP                                   = modkernel32.NewProc("SetConsoleOutputCP")
 	procSetCurrentDirectoryW                                 = modkernel32.NewProc("SetCurrentDirectoryW")
 	procSetDefaultDllDirectories                             = modkernel32.NewProc("SetDefaultDllDirectories")
 	procSetDllDirectoryW                                     = modkernel32.NewProc("SetDllDirectoryW")
@@ -2162,6 +2166,15 @@ func GetComputerName(buf *uint16, n *uint32) (err error) {
 	return
 }
 
+func GetConsoleCP() (cp uint32, err error) {
+	r0, _, e1 := syscall.Syscall(procGetConsoleCP.Addr(), 0, 0, 0, 0)
+	cp = uint32(r0)
+	if cp == 0 {
+		err = errnoErr(e1)
+	}
+	return
+}
+
 func GetConsoleMode(console Handle, mode *uint32) (err error) {
 	r1, _, e1 := syscall.Syscall(procGetConsoleMode.Addr(), 2, uintptr(console), uintptr(unsafe.Pointer(mode)), 0)
 	if r1 == 0 {
@@ -2170,6 +2183,15 @@ func GetConsoleMode(console Handle, mode *uint32) (err error) {
 	return
 }
 
+func GetConsoleOutputCP() (cp uint32, err error) {
+	r0, _, e1 := syscall.Syscall(procGetConsoleOutputCP.Addr(), 0, 0, 0, 0)
+	cp = uint32(r0)
+	if cp == 0 {
+		err = errnoErr(e1)
+	}
+	return
+}
+
 func GetConsoleScreenBufferInfo(console Handle, info *ConsoleScreenBufferInfo) (err error) {
 	r1, _, e1 := syscall.Syscall(procGetConsoleScreenBufferInfo.Addr(), 2, uintptr(console), uintptr(unsafe.Pointer(info)), 0)
 	if r1 == 0 {
@@ -3038,6 +3060,14 @@ func SetCommTimeouts(handle Handle, timeouts *CommTimeouts) (err error) {
 	return
 }
 
+func SetConsoleCP(cp uint32) (err error) {
+	r1, _, e1 := syscall.Syscall(procSetConsoleCP.Addr(), 1, uintptr(cp), 0, 0)
+	if r1 == 0 {
+		err = errnoErr(e1)
+	}
+	return
+}
+
 func setConsoleCursorPosition(console Handle, position uint32) (err error) {
 	r1, _, e1 := syscall.Syscall(procSetConsoleCursorPosition.Addr(), 2, uintptr(console), uintptr(position), 0)
 	if r1 == 0 {
@@ -3054,6 +3084,14 @@ func SetConsoleMode(console Handle, mode uint32) (err error) {
 	return
 }
 
+func SetConsoleOutputCP(cp uint32) (err error) {
+	r1, _, e1 := syscall.Syscall(procSetConsoleOutputCP.Addr(), 1, uintptr(cp), 0, 0)
+	if r1 == 0 {
+		err = errnoErr(e1)
+	}
+	return
+}
+
 func SetCurrentDirectory(path *uint16) (err error) {
 	r1, _, e1 := syscall.Syscall(procSetCurrentDirectoryW.Addr(), 1, uintptr(unsafe.Pointer(path)), 0, 0)
 	if r1 == 0 {

vendor/golang.org/x/tools/go/packages/external.go

@@ -82,7 +82,7 @@ type DriverResponse struct {
 type driver func(cfg *Config, patterns ...string) (*DriverResponse, error)
 
 // findExternalDriver returns the file path of a tool that supplies
-// the build system package structure, or "" if not found."
+// the build system package structure, or "" if not found.
 // If GOPACKAGESDRIVER is set in the environment findExternalTool returns its
 // value, otherwise it searches for a binary named gopackagesdriver on the PATH.
 func findExternalDriver(cfg *Config) driver {

vendor/golang.org/x/tools/internal/aliases/aliases.go

@@ -22,11 +22,17 @@ import (
 // GODEBUG=gotypesalias=... by invoking the type checker. The Enabled
 // function is expensive and should be called once per task (e.g.
 // package import), not once per call to NewAlias.
-func NewAlias(enabled bool, pos token.Pos, pkg *types.Package, name string, rhs types.Type) *types.TypeName {
+//
+// Precondition: enabled || len(tparams)==0.
+// If materialized aliases are disabled, there must not be any type parameters.
+func NewAlias(enabled bool, pos token.Pos, pkg *types.Package, name string, rhs types.Type, tparams []*types.TypeParam) *types.TypeName {
 	if enabled {
 		tname := types.NewTypeName(pos, pkg, name, nil)
-		newAlias(tname, rhs)
+		newAlias(tname, rhs, tparams)
 		return tname
 	}
+	if len(tparams) > 0 {
+		panic("cannot create an alias with type parameters when gotypesalias is not enabled")
+	}
 	return types.NewTypeName(pos, pkg, name, rhs)
 }

vendor/golang.org/x/tools/internal/aliases/aliases_go121.go

@@ -27,7 +27,9 @@ func Origin(alias *Alias) *Alias                             { panic("unreachabl
 // Unalias returns the type t for go <=1.21.
 func Unalias(t types.Type) types.Type { return t }
 
-func newAlias(name *types.TypeName, rhs types.Type) *Alias { panic("unreachable") }
+func newAlias(name *types.TypeName, rhs types.Type, tparams []*types.TypeParam) *Alias {
+	panic("unreachable")
+}
 
 // Enabled reports whether [NewAlias] should create [types.Alias] types.
 //

vendor/golang.org/x/tools/internal/aliases/aliases_go122.go

@@ -70,10 +70,9 @@ func Unalias(t types.Type) types.Type { return types.Unalias(t) }
 // newAlias is an internal alias around types.NewAlias.
 // Direct usage is discouraged as the moment.
 // Try to use NewAlias instead.
-func newAlias(tname *types.TypeName, rhs types.Type) *Alias {
+func newAlias(tname *types.TypeName, rhs types.Type, tparams []*types.TypeParam) *Alias {
 	a := types.NewAlias(tname, rhs)
-	// TODO(go.dev/issue/65455): Remove kludgy workaround to set a.actual as a side-effect.
-	Unalias(a)
+	SetTypeParams(a, tparams)
 	return a
 }
 

vendor/golang.org/x/tools/internal/gcimporter/iexport.go

@@ -2,9 +2,227 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
-// Indexed binary package export.
-// This file was derived from $GOROOT/src/cmd/compile/internal/gc/iexport.go;
-// see that file for specification of the format.
+// Indexed package export.
+//
+// The indexed export data format is an evolution of the previous
+// binary export data format. Its chief contribution is introducing an
+// index table, which allows efficient random access of individual
+// declarations and inline function bodies. In turn, this allows
+// avoiding unnecessary work for compilation units that import large
+// packages.
+//
+//
+// The top-level data format is structured as:
+//
+//     Header struct {
+//         Tag        byte   // 'i'
+//         Version    uvarint
+//         StringSize uvarint
+//         DataSize   uvarint
+//     }
+//
+//     Strings [StringSize]byte
+//     Data    [DataSize]byte
+//
+//     MainIndex []struct{
+//         PkgPath   stringOff
+//         PkgName   stringOff
+//         PkgHeight uvarint
+//
+//         Decls []struct{
+//             Name   stringOff
+//             Offset declOff
+//         }
+//     }
+//
+//     Fingerprint [8]byte
+//
+// uvarint means a uint64 written out using uvarint encoding.
+//
+// []T means a uvarint followed by that many T objects. In other
+// words:
+//
+//     Len   uvarint
+//     Elems [Len]T
+//
+// stringOff means a uvarint that indicates an offset within the
+// Strings section. At that offset is another uvarint, followed by
+// that many bytes, which form the string value.
+//
+// declOff means a uvarint that indicates an offset within the Data
+// section where the associated declaration can be found.
+//
+//
+// There are five kinds of declarations, distinguished by their first
+// byte:
+//
+//     type Var struct {
+//         Tag  byte // 'V'
+//         Pos  Pos
+//         Type typeOff
+//     }
+//
+//     type Func struct {
+//         Tag       byte // 'F' or 'G'
+//         Pos       Pos
+//         TypeParams []typeOff  // only present if Tag == 'G'
+//         Signature Signature
+//     }
+//
+//     type Const struct {
+//         Tag   byte // 'C'
+//         Pos   Pos
+//         Value Value
+//     }
+//
+//     type Type struct {
+//         Tag        byte // 'T' or 'U'
+//         Pos        Pos
+//         TypeParams []typeOff  // only present if Tag == 'U'
+//         Underlying typeOff
+//
+//         Methods []struct{  // omitted if Underlying is an interface type
+//             Pos       Pos
+//             Name      stringOff
+//             Recv      Param
+//             Signature Signature
+//         }
+//     }
+//
+//     type Alias struct {
+//         Tag  byte // 'A' or 'B'
+//         Pos  Pos
+//         TypeParams []typeOff  // only present if Tag == 'B'
+//         Type typeOff
+//     }
+//
+//     // "Automatic" declaration of each typeparam
+//     type TypeParam struct {
+//         Tag        byte // 'P'
+//         Pos        Pos
+//         Implicit   bool
+//         Constraint typeOff
+//     }
+//
+// typeOff means a uvarint that either indicates a predeclared type,
+// or an offset into the Data section. If the uvarint is less than
+// predeclReserved, then it indicates the index into the predeclared
+// types list (see predeclared in bexport.go for order). Otherwise,
+// subtracting predeclReserved yields the offset of a type descriptor.
+//
+// Value means a type, kind, and type-specific value. See
+// (*exportWriter).value for details.
+//
+//
+// There are twelve kinds of type descriptors, distinguished by an itag:
+//
+//     type DefinedType struct {
+//         Tag     itag // definedType
+//         Name    stringOff
+//         PkgPath stringOff
+//     }
+//
+//     type PointerType struct {
+//         Tag  itag // pointerType
+//         Elem typeOff
+//     }
+//
+//     type SliceType struct {
+//         Tag  itag // sliceType
+//         Elem typeOff
+//     }
+//
+//     type ArrayType struct {
+//         Tag  itag // arrayType
+//         Len  uint64
+//         Elem typeOff
+//     }
+//
+//     type ChanType struct {
+//         Tag  itag   // chanType
+//         Dir  uint64 // 1 RecvOnly; 2 SendOnly; 3 SendRecv
+//         Elem typeOff
+//     }
+//
+//     type MapType struct {
+//         Tag  itag // mapType
+//         Key  typeOff
+//         Elem typeOff
+//     }
+//
+//     type FuncType struct {
+//         Tag       itag // signatureType
+//         PkgPath   stringOff
+//         Signature Signature
+//     }
+//
+//     type StructType struct {
+//         Tag     itag // structType
+//         PkgPath stringOff
+//         Fields []struct {
+//             Pos      Pos
+//             Name     stringOff
+//             Type     typeOff
+//             Embedded bool
+//             Note     stringOff
+//         }
+//     }
+//
+//     type InterfaceType struct {
+//         Tag     itag // interfaceType
+//         PkgPath stringOff
+//         Embeddeds []struct {
+//             Pos  Pos
+//             Type typeOff
+//         }
+//         Methods []struct {
+//             Pos       Pos
+//             Name      stringOff
+//             Signature Signature
+//         }
+//     }
+//
+//     // Reference to a type param declaration
+//     type TypeParamType struct {
+//         Tag     itag // typeParamType
+//         Name    stringOff
+//         PkgPath stringOff
+//     }
+//
+//     // Instantiation of a generic type (like List[T2] or List[int])
+//     type InstanceType struct {
+//         Tag     itag // instanceType
+//         Pos     pos
+//         TypeArgs []typeOff
+//         BaseType typeOff
+//     }
+//
+//     type UnionType struct {
+//         Tag     itag // interfaceType
+//         Terms   []struct {
+//             tilde bool
+//             Type  typeOff
+//         }
+//     }
+//
+//
+//
+//     type Signature struct {
+//         Params   []Param
+//         Results  []Param
+//         Variadic bool  // omitted if Results is empty
+//     }
+//
+//     type Param struct {
+//         Pos  Pos
+//         Name stringOff
+//         Type typOff
+//     }
+//
+//
+// Pos encodes a file:line:column triple, incorporating a simple delta
+// encoding scheme within a data object. See exportWriter.pos for
+// details.
 
 package gcimporter
 
@@ -523,9 +741,22 @@ func (p *iexporter) doDecl(obj types.Object) {
 		}
 
 		if obj.IsAlias() {
-			w.tag(aliasTag)
+			alias, materialized := t.(*aliases.Alias) // may fail when aliases are not enabled
+
+			var tparams *types.TypeParamList
+			if materialized {
+				tparams = aliases.TypeParams(alias)
+			}
+			if tparams.Len() == 0 {
+				w.tag(aliasTag)
+			} else {
+				w.tag(genericAliasTag)
+			}
 			w.pos(obj.Pos())
-			if alias, ok := t.(*aliases.Alias); ok {
+			if tparams.Len() > 0 {
+				w.tparamList(obj.Name(), tparams, obj.Pkg())
+			}
+			if materialized {
 				// Preserve materialized aliases,
 				// even of non-exported types.
 				t = aliases.Rhs(alias)
@@ -745,7 +976,13 @@ func (w *exportWriter) doTyp(t types.Type, pkg *types.Package) {
 	}
 	switch t := t.(type) {
 	case *aliases.Alias:
-		// TODO(adonovan): support parameterized aliases, following *types.Named.
+		if targs := aliases.TypeArgs(t); targs.Len() > 0 {
+			w.startType(instanceType)
+			w.pos(t.Obj().Pos())
+			w.typeList(targs, pkg)
+			w.typ(aliases.Origin(t), pkg)
+			return
+		}
 		w.startType(aliasType)
 		w.qualifiedType(t.Obj())
 

vendor/golang.org/x/tools/internal/gcimporter/iimport.go

@@ -3,7 +3,7 @@
 // license that can be found in the LICENSE file.
 
 // Indexed package import.
-// See cmd/compile/internal/gc/iexport.go for the export data format.
+// See iexport.go for the export data format.
 
 // This file is a copy of $GOROOT/src/go/internal/gcimporter/iimport.go.
 
@@ -562,14 +562,14 @@ func (r *importReader) obj(name string) {
 	pos := r.pos()
 
 	switch tag {
-	case aliasTag:
+	case aliasTag, genericAliasTag:
+		var tparams []*types.TypeParam
+		if tag == genericAliasTag {
+			tparams = r.tparamList()
+		}
 		typ := r.typ()
-		// TODO(adonovan): support generic aliases:
-		// if tag == genericAliasTag {
-		// 	tparams := r.tparamList()
-		// 	alias.SetTypeParams(tparams)
-		// }
-		r.declare(aliases.NewAlias(r.p.aliases, pos, r.currPkg, name, typ))
+		obj := aliases.NewAlias(r.p.aliases, pos, r.currPkg, name, typ, tparams)
+		r.declare(obj)
 
 	case constTag:
 		typ, val := r.value()
@@ -862,7 +862,7 @@ func (r *importReader) string() string      { return r.p.stringAt(r.uint64()) }
 func (r *importReader) doType(base *types.Named) (res types.Type) {
 	k := r.kind()
 	if debug {
-		r.p.trace("importing type %d (base: %s)", k, base)
+		r.p.trace("importing type %d (base: %v)", k, base)
 		r.p.indent++
 		defer func() {
 			r.p.indent--

vendor/golang.org/x/tools/internal/gcimporter/ureader_yes.go

@@ -52,8 +52,7 @@ func (pr *pkgReader) later(fn func()) {
 
 // See cmd/compile/internal/noder.derivedInfo.
 type derivedInfo struct {
-	idx    pkgbits.Index
-	needed bool
+	idx pkgbits.Index
 }
 
 // See cmd/compile/internal/noder.typeInfo.
@@ -110,13 +109,17 @@ func readUnifiedPackage(fset *token.FileSet, ctxt *types.Context, imports map[st
 
 	r := pr.newReader(pkgbits.RelocMeta, pkgbits.PublicRootIdx, pkgbits.SyncPublic)
 	pkg := r.pkg()
-	r.Bool() // has init
+	if r.Version().Has(pkgbits.HasInit) {
+		r.Bool()
+	}
 
 	for i, n := 0, r.Len(); i < n; i++ {
 		// As if r.obj(), but avoiding the Scope.Lookup call,
 		// to avoid eager loading of imports.
 		r.Sync(pkgbits.SyncObject)
-		assert(!r.Bool())
+		if r.Version().Has(pkgbits.DerivedFuncInstance) {
+			assert(!r.Bool())
+		}
 		r.p.objIdx(r.Reloc(pkgbits.RelocObj))
 		assert(r.Len() == 0)
 	}
@@ -165,7 +168,7 @@ type readerDict struct {
 	// tparams is a slice of the constructed TypeParams for the element.
 	tparams []*types.TypeParam
 
-	// devived is a slice of types derived from tparams, which may be
+	// derived is a slice of types derived from tparams, which may be
 	// instantiated while reading the current element.
 	derived      []derivedInfo
 	derivedTypes []types.Type // lazily instantiated from derived
@@ -471,7 +474,9 @@ func (r *reader) param() *types.Var {
 func (r *reader) obj() (types.Object, []types.Type) {
 	r.Sync(pkgbits.SyncObject)
 
-	assert(!r.Bool())
+	if r.Version().Has(pkgbits.DerivedFuncInstance) {
+		assert(!r.Bool())
+	}
 
 	pkg, name := r.p.objIdx(r.Reloc(pkgbits.RelocObj))
 	obj := pkgScope(pkg).Lookup(name)
@@ -525,8 +530,12 @@ func (pr *pkgReader) objIdx(idx pkgbits.Index) (*types.Package, string) {
 
 		case pkgbits.ObjAlias:
 			pos := r.pos()
+			var tparams []*types.TypeParam
+			if r.Version().Has(pkgbits.AliasTypeParamNames) {
+				tparams = r.typeParamNames()
+			}
 			typ := r.typ()
-			declare(aliases.NewAlias(r.p.aliases, pos, objPkg, objName, typ))
+			declare(aliases.NewAlias(r.p.aliases, pos, objPkg, objName, typ, tparams))
 
 		case pkgbits.ObjConst:
 			pos := r.pos()
@@ -632,7 +641,10 @@ func (pr *pkgReader) objDictIdx(idx pkgbits.Index) *readerDict {
 		dict.derived = make([]derivedInfo, r.Len())
 		dict.derivedTypes = make([]types.Type, len(dict.derived))
 		for i := range dict.derived {
-			dict.derived[i] = derivedInfo{r.Reloc(pkgbits.RelocType), r.Bool()}
+			dict.derived[i] = derivedInfo{idx: r.Reloc(pkgbits.RelocType)}
+			if r.Version().Has(pkgbits.DerivedInfoNeeded) {
+				assert(!r.Bool())
+			}
 		}
 
 		pr.retireReader(r)

vendor/golang.org/x/tools/internal/pkgbits/decoder.go

@@ -21,7 +21,7 @@ import (
 // export data.
 type PkgDecoder struct {
 	// version is the file format version.
-	version uint32
+	version Version
 
 	// sync indicates whether the file uses sync markers.
 	sync bool
@@ -68,8 +68,6 @@ func (pr *PkgDecoder) SyncMarkers() bool { return pr.sync }
 // NewPkgDecoder returns a PkgDecoder initialized to read the Unified
 // IR export data from input. pkgPath is the package path for the
 // compilation unit that produced the export data.
-//
-// TODO(mdempsky): Remove pkgPath parameter; unneeded since CL 391014.
 func NewPkgDecoder(pkgPath, input string) PkgDecoder {
 	pr := PkgDecoder{
 		pkgPath: pkgPath,
@@ -80,14 +78,15 @@ func NewPkgDecoder(pkgPath, input string) PkgDecoder {
 
 	r := strings.NewReader(input)
 
-	assert(binary.Read(r, binary.LittleEndian, &pr.version) == nil)
+	var ver uint32
+	assert(binary.Read(r, binary.LittleEndian, &ver) == nil)
+	pr.version = Version(ver)
 
-	switch pr.version {
-	default:
-		panic(fmt.Errorf("unsupported version: %v", pr.version))
-	case 0:
-		// no flags
-	case 1:
+	if pr.version >= numVersions {
+		panic(fmt.Errorf("cannot decode %q, export data version %d is greater than maximum supported version %d", pkgPath, pr.version, numVersions-1))
+	}
+
+	if pr.version.Has(Flags) {
 		var flags uint32
 		assert(binary.Read(r, binary.LittleEndian, &flags) == nil)
 		pr.sync = flags&flagSyncMarkers != 0
@@ -102,7 +101,9 @@ func NewPkgDecoder(pkgPath, input string) PkgDecoder {
 	assert(err == nil)
 
 	pr.elemData = input[pos:]
-	assert(len(pr.elemData)-8 == int(pr.elemEnds[len(pr.elemEnds)-1]))
+
+	const fingerprintSize = 8
+	assert(len(pr.elemData)-fingerprintSize == int(pr.elemEnds[len(pr.elemEnds)-1]))
 
 	return pr
 }
@@ -136,7 +137,7 @@ func (pr *PkgDecoder) AbsIdx(k RelocKind, idx Index) int {
 		absIdx += int(pr.elemEndsEnds[k-1])
 	}
 	if absIdx >= int(pr.elemEndsEnds[k]) {
-		errorf("%v:%v is out of bounds; %v", k, idx, pr.elemEndsEnds)
+		panicf("%v:%v is out of bounds; %v", k, idx, pr.elemEndsEnds)
 	}
 	return absIdx
 }
@@ -193,9 +194,7 @@ func (pr *PkgDecoder) NewDecoderRaw(k RelocKind, idx Index) Decoder {
 		Idx:    idx,
 	}
 
-	// TODO(mdempsky) r.data.Reset(...) after #44505 is resolved.
-	r.Data = *strings.NewReader(pr.DataIdx(k, idx))
-
+	r.Data.Reset(pr.DataIdx(k, idx))
 	r.Sync(SyncRelocs)
 	r.Relocs = make([]RelocEnt, r.Len())
 	for i := range r.Relocs {
@@ -244,7 +243,7 @@ type Decoder struct {
 
 func (r *Decoder) checkErr(err error) {
 	if err != nil {
-		errorf("unexpected decoding error: %w", err)
+		panicf("unexpected decoding error: %w", err)
 	}
 }
 
@@ -515,3 +514,6 @@ func (pr *PkgDecoder) PeekObj(idx Index) (string, string, CodeObj) {
 
 	return path, name, tag
 }
+
+// Version reports the version of the bitstream.
+func (w *Decoder) Version() Version { return w.common.version }

vendor/golang.org/x/tools/internal/pkgbits/encoder.go

@@ -12,18 +12,15 @@ import (
 	"io"
 	"math/big"
 	"runtime"
+	"strings"
 )
 
-// currentVersion is the current version number.
-//
-//   - v0: initial prototype
-//
-//   - v1: adds the flags uint32 word
-const currentVersion uint32 = 1
-
 // A PkgEncoder provides methods for encoding a package's Unified IR
 // export data.
 type PkgEncoder struct {
+	// version of the bitstream.
+	version Version
+
 	// elems holds the bitstream for previously encoded elements.
 	elems [numRelocs][]string
 
@@ -47,8 +44,9 @@ func (pw *PkgEncoder) SyncMarkers() bool { return pw.syncFrames >= 0 }
 // export data files, but can help diagnosing desync errors in
 // higher-level Unified IR reader/writer code. If syncFrames is
 // negative, then sync markers are omitted entirely.
-func NewPkgEncoder(syncFrames int) PkgEncoder {
+func NewPkgEncoder(version Version, syncFrames int) PkgEncoder {
 	return PkgEncoder{
+		version:    version,
 		stringsIdx: make(map[string]Index),
 		syncFrames: syncFrames,
 	}
@@ -64,13 +62,15 @@ func (pw *PkgEncoder) DumpTo(out0 io.Writer) (fingerprint [8]byte) {
 		assert(binary.Write(out, binary.LittleEndian, x) == nil)
 	}
 
-	writeUint32(currentVersion)
+	writeUint32(uint32(pw.version))
 
-	var flags uint32
-	if pw.SyncMarkers() {
-		flags |= flagSyncMarkers
+	if pw.version.Has(Flags) {
+		var flags uint32
+		if pw.SyncMarkers() {
+			flags |= flagSyncMarkers
+		}
+		writeUint32(flags)
 	}
-	writeUint32(flags)
 
 	// Write elemEndsEnds.
 	var sum uint32
@@ -159,7 +159,7 @@ type Encoder struct {
 
 // Flush finalizes the element's bitstream and returns its Index.
 func (w *Encoder) Flush() Index {
-	var sb bytes.Buffer // TODO(mdempsky): strings.Builder after #44505 is resolved
+	var sb strings.Builder
 
 	// Backup the data so we write the relocations at the front.
 	var tmp bytes.Buffer
@@ -189,7 +189,7 @@ func (w *Encoder) Flush() Index {
 
 func (w *Encoder) checkErr(err error) {
 	if err != nil {
-		errorf("unexpected encoding error: %v", err)
+		panicf("unexpected encoding error: %v", err)
 	}
 }
 
@@ -320,8 +320,14 @@ func (w *Encoder) Code(c Code) {
 // section (if not already present), and then writing a relocation
 // into the element bitstream.
 func (w *Encoder) String(s string) {
+	w.StringRef(w.p.StringIdx(s))
+}
+
+// StringRef writes a reference to the given index, which must be a
+// previously encoded string value.
+func (w *Encoder) StringRef(idx Index) {
 	w.Sync(SyncString)
-	w.Reloc(RelocString, w.p.StringIdx(s))
+	w.Reloc(RelocString, idx)
 }
 
 // Strings encodes and writes a variable-length slice of strings into
@@ -348,7 +354,7 @@ func (w *Encoder) Value(val constant.Value) {
 func (w *Encoder) scalar(val constant.Value) {
 	switch v := constant.Val(val).(type) {
 	default:
-		errorf("unhandled %v (%v)", val, val.Kind())
+		panicf("unhandled %v (%v)", val, val.Kind())
 	case bool:
 		w.Code(ValBool)
 		w.Bool(v)
@@ -381,3 +387,6 @@ func (w *Encoder) bigFloat(v *big.Float) {
 	b := v.Append(nil, 'p', -1)
 	w.String(string(b)) // TODO: More efficient encoding.
 }
+
+// Version reports the version of the bitstream.
+func (w *Encoder) Version() Version { return w.p.version }

vendor/golang.org/x/tools/internal/pkgbits/frames_go1.go

@@ -1,21 +0,0 @@
-// Copyright 2021 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-//go:build !go1.7
-// +build !go1.7
-
-// TODO(mdempsky): Remove after #44505 is resolved
-
-package pkgbits
-
-import "runtime"
-
-func walkFrames(pcs []uintptr, visit frameVisitor) {
-	for _, pc := range pcs {
-		fn := runtime.FuncForPC(pc)
-		file, line := fn.FileLine(pc)
-
-		visit(file, line, fn.Name(), pc-fn.Entry())
-	}
-}

vendor/golang.org/x/tools/internal/pkgbits/frames_go17.go

@@ -1,28 +0,0 @@
-// Copyright 2021 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-//go:build go1.7
-// +build go1.7
-
-package pkgbits
-
-import "runtime"
-
-// walkFrames calls visit for each call frame represented by pcs.
-//
-// pcs should be a slice of PCs, as returned by runtime.Callers.
-func walkFrames(pcs []uintptr, visit frameVisitor) {
-	if len(pcs) == 0 {
-		return
-	}
-
-	frames := runtime.CallersFrames(pcs)
-	for {
-		frame, more := frames.Next()
-		visit(frame.File, frame.Line, frame.Function, frame.PC-frame.Entry)
-		if !more {
-			return
-		}
-	}
-}

vendor/golang.org/x/tools/internal/pkgbits/support.go

@@ -12,6 +12,6 @@ func assert(b bool) {
 	}
 }
 
-func errorf(format string, args ...interface{}) {
+func panicf(format string, args ...any) {
 	panic(fmt.Errorf(format, args...))
 }

vendor/golang.org/x/tools/internal/pkgbits/sync.go

@@ -6,6 +6,7 @@ package pkgbits
 
 import (
 	"fmt"
+	"runtime"
 	"strings"
 )
 
@@ -23,6 +24,24 @@ func fmtFrames(pcs ...uintptr) []string {
 
 type frameVisitor func(file string, line int, name string, offset uintptr)
 
+// walkFrames calls visit for each call frame represented by pcs.
+//
+// pcs should be a slice of PCs, as returned by runtime.Callers.
+func walkFrames(pcs []uintptr, visit frameVisitor) {
+	if len(pcs) == 0 {
+		return
+	}
+
+	frames := runtime.CallersFrames(pcs)
+	for {
+		frame, more := frames.Next()
+		visit(frame.File, frame.Line, frame.Function, frame.PC-frame.Entry)
+		if !more {
+			return
+		}
+	}
+}
+
 // SyncMarker is an enum type that represents markers that may be
 // written to export data to ensure the reader and writer stay
 // synchronized.
@@ -110,4 +129,8 @@ const (
 	SyncStmtsEnd
 	SyncLabel
 	SyncOptLabel
+
+	SyncMultiExpr
+	SyncRType
+	SyncConvRTTI
 )

vendor/golang.org/x/tools/internal/pkgbits/syncmarker_string.go

@@ -74,11 +74,14 @@ func _() {
 	_ = x[SyncStmtsEnd-64]
 	_ = x[SyncLabel-65]
 	_ = x[SyncOptLabel-66]
+	_ = x[SyncMultiExpr-67]
+	_ = x[SyncRType-68]
+	_ = x[SyncConvRTTI-69]
 }
 
-const _SyncMarker_name = "EOFBoolInt64Uint64StringValueValRelocsRelocUseRelocPublicPosPosBaseObjectObject1PkgPkgDefMethodTypeTypeIdxTypeParamNamesSignatureParamsParamCodeObjSymLocalIdentSelectorPrivateFuncExtVarExtTypeExtPragmaExprListExprsExprExprTypeAssignOpFuncLitCompLitDeclFuncBodyOpenScopeCloseScopeCloseAnotherScopeDeclNamesDeclNameStmtsBlockStmtIfStmtForStmtSwitchStmtRangeStmtCaseClauseCommClauseSelectStmtDeclsLabeledStmtUseObjLocalAddLocalLinknameStmt1StmtsEndLabelOptLabel"
+const _SyncMarker_name = "EOFBoolInt64Uint64StringValueValRelocsRelocUseRelocPublicPosPosBaseObjectObject1PkgPkgDefMethodTypeTypeIdxTypeParamNamesSignatureParamsParamCodeObjSymLocalIdentSelectorPrivateFuncExtVarExtTypeExtPragmaExprListExprsExprExprTypeAssignOpFuncLitCompLitDeclFuncBodyOpenScopeCloseScopeCloseAnotherScopeDeclNamesDeclNameStmtsBlockStmtIfStmtForStmtSwitchStmtRangeStmtCaseClauseCommClauseSelectStmtDeclsLabeledStmtUseObjLocalAddLocalLinknameStmt1StmtsEndLabelOptLabelMultiExprRTypeConvRTTI"
 
-var _SyncMarker_index = [...]uint16{0, 3, 7, 12, 18, 24, 29, 32, 38, 43, 51, 57, 60, 67, 73, 80, 83, 89, 95, 99, 106, 120, 129, 135, 140, 147, 150, 160, 168, 175, 182, 188, 195, 201, 209, 214, 218, 226, 232, 234, 241, 248, 252, 260, 269, 279, 296, 305, 313, 318, 327, 333, 340, 350, 359, 369, 379, 389, 394, 405, 416, 424, 432, 437, 445, 450, 458}
+var _SyncMarker_index = [...]uint16{0, 3, 7, 12, 18, 24, 29, 32, 38, 43, 51, 57, 60, 67, 73, 80, 83, 89, 95, 99, 106, 120, 129, 135, 140, 147, 150, 160, 168, 175, 182, 188, 195, 201, 209, 214, 218, 226, 232, 234, 241, 248, 252, 260, 269, 279, 296, 305, 313, 318, 327, 333, 340, 350, 359, 369, 379, 389, 394, 405, 416, 424, 432, 437, 445, 450, 458, 467, 472, 480}
 
 func (i SyncMarker) String() string {
 	i -= 1

vendor/golang.org/x/tools/internal/pkgbits/version.go

@@ -0,0 +1,85 @@
+// Copyright 2024 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package pkgbits
+
+// Version indicates a version of a unified IR bitstream.
+// Each Version indicates the addition, removal, or change of
+// new data in the bitstream.
+//
+// These are serialized to disk and the interpretation remains fixed.
+type Version uint32
+
+const (
+	// V0: initial prototype.
+	//
+	// All data that is not assigned a Field is in version V0
+	// and has not been deprecated.
+	V0 Version = iota
+
+	// V1: adds the Flags uint32 word
+	V1
+
+	// V2: removes unused legacy fields and supports type parameters for aliases.
+	// - remove the legacy "has init" bool from the public root
+	// - remove obj's "derived func instance" bool
+	// - add a TypeParamNames field to ObjAlias
+	// - remove derived info "needed" bool
+	V2
+
+	numVersions = iota
+)
+
+// Field denotes a unit of data in the serialized unified IR bitstream.
+// It is conceptually a like field in a structure.
+//
+// We only really need Fields when the data may or may not be present
+// in a stream based on the Version of the bitstream.
+//
+// Unlike much of pkgbits, Fields are not serialized and
+// can change values as needed.
+type Field int
+
+const (
+	// Flags in a uint32 in the header of a bitstream
+	// that is used to indicate whether optional features are enabled.
+	Flags Field = iota
+
+	// Deprecated: HasInit was a bool indicating whether a package
+	// has any init functions.
+	HasInit
+
+	// Deprecated: DerivedFuncInstance was a bool indicating
+	// whether an object was a function instance.
+	DerivedFuncInstance
+
+	// ObjAlias has a list of TypeParamNames.
+	AliasTypeParamNames
+
+	// Deprecated: DerivedInfoNeeded was a bool indicating
+	// whether a type was a derived type.
+	DerivedInfoNeeded
+
+	numFields = iota
+)
+
+// introduced is the version a field was added.
+var introduced = [numFields]Version{
+	Flags:               V1,
+	AliasTypeParamNames: V2,
+}
+
+// removed is the version a field was removed in or 0 for fields
+// that have not yet been deprecated.
+// (So removed[f]-1 is the last version it is included in.)
+var removed = [numFields]Version{
+	HasInit:             V2,
+	DerivedFuncInstance: V2,
+	DerivedInfoNeeded:   V2,
+}
+
+// Has reports whether field f is present in a bitstream at version v.
+func (v Version) Has(f Field) bool {
+	return introduced[f] <= v && (v < removed[f] || removed[f] == V0)
+}

vendor/golang.org/x/tools/internal/stdlib/manifest.go

@@ -951,7 +951,7 @@ var PackageSymbols = map[string][]Symbol{
 		{"ParseSessionState", Func, 21},
 		{"QUICClient", Func, 21},
 		{"QUICConfig", Type, 21},
-		{"QUICConfig.EnableStoreSessionEvent", Field, 23},
+		{"QUICConfig.EnableSessionEvents", Field, 23},
 		{"QUICConfig.TLSConfig", Field, 21},
 		{"QUICConn", Type, 21},
 		{"QUICEncryptionLevel", Type, 21},

vendor/golang.org/x/tools/internal/typesinternal/errorcode.go

@@ -838,7 +838,7 @@ const (
 	// InvalidCap occurs when an argument to the cap built-in function is not of
 	// supported type.
 	//
-	// See https://golang.org/ref/spec#Lengthand_capacity for information on
+	// See https://golang.org/ref/spec#Length_and_capacity for information on
 	// which underlying types are supported as arguments to cap and len.
 	//
 	// Example:
@@ -859,7 +859,7 @@ const (
 	// InvalidCopy occurs when the arguments are not of slice type or do not
 	// have compatible type.
 	//
-	// See https://golang.org/ref/spec#Appendingand_copying_slices for more
+	// See https://golang.org/ref/spec#Appending_and_copying_slices for more
 	// information on the type requirements for the copy built-in.
 	//
 	// Example:
@@ -897,7 +897,7 @@ const (
 	// InvalidLen occurs when an argument to the len built-in function is not of
 	// supported type.
 	//
-	// See https://golang.org/ref/spec#Lengthand_capacity for information on
+	// See https://golang.org/ref/spec#Length_and_capacity for information on
 	// which underlying types are supported as arguments to cap and len.
 	//
 	// Example:
@@ -914,7 +914,7 @@ const (
 
 	// InvalidMake occurs when make is called with an unsupported type argument.
 	//
-	// See https://golang.org/ref/spec#Makingslices_maps_and_channels for
+	// See https://golang.org/ref/spec#Making_slices_maps_and_channels for
 	// information on the types that may be created using make.
 	//
 	// Example: