diff options
Diffstat (limited to 'vendor/golang.org')
92 files changed, 3616 insertions, 1234 deletions
diff --git a/vendor/golang.org/x/sys/cpu/cpu_gccgo_x86.c b/vendor/golang.org/x/sys/cpu/cpu_gccgo_x86.c index a4605e6d1..6cc73109f 100644 --- a/vendor/golang.org/x/sys/cpu/cpu_gccgo_x86.c +++ b/vendor/golang.org/x/sys/cpu/cpu_gccgo_x86.c @@ -2,6 +2,7 @@ // Use of this source code is governed by a BSD-style // license that can be found in the LICENSE file. +//go:build (386 || amd64 || amd64p32) && gccgo // +build 386 amd64 amd64p32 // +build gccgo diff --git a/vendor/golang.org/x/sys/cpu/cpu_linux_arm64.go b/vendor/golang.org/x/sys/cpu/cpu_linux_arm64.go index 79a38a0b9..a968b80fa 100644 --- a/vendor/golang.org/x/sys/cpu/cpu_linux_arm64.go +++ b/vendor/golang.org/x/sys/cpu/cpu_linux_arm64.go @@ -4,6 +4,11 @@ package cpu +import ( + "strings" + "syscall" +) + // HWCAP/HWCAP2 bits. These are exposed by Linux. const ( hwcap_FP = 1 << 0 @@ -32,10 +37,45 @@ const ( hwcap_ASIMDFHM = 1 << 23 ) +// linuxKernelCanEmulateCPUID reports whether we're running +// on Linux 4.11+. Ideally we'd like to ask the question about +// whether the current kernel contains +// https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=77c97b4ee21290f5f083173d957843b615abbff2 +// but the version number will have to do. +func linuxKernelCanEmulateCPUID() bool { + var un syscall.Utsname + syscall.Uname(&un) + var sb strings.Builder + for _, b := range un.Release[:] { + if b == 0 { + break + } + sb.WriteByte(byte(b)) + } + major, minor, _, ok := parseRelease(sb.String()) + return ok && (major > 4 || major == 4 && minor >= 11) +} + func doinit() { if err := readHWCAP(); err != nil { - // failed to read /proc/self/auxv, try reading registers directly - readARM64Registers() + // We failed to read /proc/self/auxv. This can happen if the binary has + // been given extra capabilities(7) with /bin/setcap. + // + // When this happens, we have two options. If the Linux kernel is new + // enough (4.11+), we can read the arm64 registers directly which'll + // trap into the kernel and then return back to userspace. + // + // But on older kernels, such as Linux 4.4.180 as used on many Synology + // devices, calling readARM64Registers (specifically getisar0) will + // cause a SIGILL and we'll die. So for older kernels, parse /proc/cpuinfo + // instead. + // + // See golang/go#57336. + if linuxKernelCanEmulateCPUID() { + readARM64Registers() + } else { + readLinuxProcCPUInfo() + } return } diff --git a/vendor/golang.org/x/sys/cpu/endian_big.go b/vendor/golang.org/x/sys/cpu/endian_big.go new file mode 100644 index 000000000..93ce03a34 --- /dev/null +++ b/vendor/golang.org/x/sys/cpu/endian_big.go @@ -0,0 +1,11 @@ +// Copyright 2023 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 armbe || arm64be || m68k || mips || mips64 || mips64p32 || ppc || ppc64 || s390 || s390x || shbe || sparc || sparc64 +// +build armbe arm64be m68k mips mips64 mips64p32 ppc ppc64 s390 s390x shbe sparc sparc64 + +package cpu + +// IsBigEndian records whether the GOARCH's byte order is big endian. +const IsBigEndian = true diff --git a/vendor/golang.org/x/sys/cpu/endian_little.go b/vendor/golang.org/x/sys/cpu/endian_little.go new file mode 100644 index 000000000..fe545966b --- /dev/null +++ b/vendor/golang.org/x/sys/cpu/endian_little.go @@ -0,0 +1,11 @@ +// Copyright 2023 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 386 || amd64 || amd64p32 || alpha || arm || arm64 || loong64 || mipsle || mips64le || mips64p32le || nios2 || ppc64le || riscv || riscv64 || sh +// +build 386 amd64 amd64p32 alpha arm arm64 loong64 mipsle mips64le mips64p32le nios2 ppc64le riscv riscv64 sh + +package cpu + +// IsBigEndian records whether the GOARCH's byte order is big endian. +const IsBigEndian = false diff --git a/vendor/golang.org/x/sys/cpu/parse.go b/vendor/golang.org/x/sys/cpu/parse.go new file mode 100644 index 000000000..762b63d68 --- /dev/null +++ b/vendor/golang.org/x/sys/cpu/parse.go @@ -0,0 +1,43 @@ +// Copyright 2022 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 "strconv" + +// parseRelease parses a dot-separated version number. It follows the semver +// syntax, but allows the minor and patch versions to be elided. +// +// This is a copy of the Go runtime's parseRelease from +// https://golang.org/cl/209597. +func parseRelease(rel string) (major, minor, patch int, ok bool) { + // Strip anything after a dash or plus. + for i := 0; i < len(rel); i++ { + if rel[i] == '-' || rel[i] == '+' { + rel = rel[:i] + break + } + } + + next := func() (int, bool) { + for i := 0; i < len(rel); i++ { + if rel[i] == '.' { + ver, err := strconv.Atoi(rel[:i]) + rel = rel[i+1:] + return ver, err == nil + } + } + ver, err := strconv.Atoi(rel) + rel = "" + return ver, err == nil + } + if major, ok = next(); !ok || rel == "" { + return + } + if minor, ok = next(); !ok || rel == "" { + return + } + patch, ok = next() + return +} diff --git a/vendor/golang.org/x/sys/cpu/proc_cpuinfo_linux.go b/vendor/golang.org/x/sys/cpu/proc_cpuinfo_linux.go new file mode 100644 index 000000000..d87bd6b3e --- /dev/null +++ b/vendor/golang.org/x/sys/cpu/proc_cpuinfo_linux.go @@ -0,0 +1,54 @@ +// Copyright 2022 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 linux && arm64 +// +build linux,arm64 + +package cpu + +import ( + "errors" + "io" + "os" + "strings" +) + +func readLinuxProcCPUInfo() error { + f, err := os.Open("/proc/cpuinfo") + if err != nil { + return err + } + defer f.Close() + + var buf [1 << 10]byte // enough for first CPU + n, err := io.ReadFull(f, buf[:]) + if err != nil && err != io.ErrUnexpectedEOF { + return err + } + in := string(buf[:n]) + const features = "\nFeatures : " + i := strings.Index(in, features) + if i == -1 { + return errors.New("no CPU features found") + } + in = in[i+len(features):] + if i := strings.Index(in, "\n"); i != -1 { + in = in[:i] + } + m := map[string]*bool{} + + initOptions() // need it early here; it's harmless to call twice + for _, o := range options { + m[o.Name] = o.Feature + } + // The EVTSTRM field has alias "evstrm" in Go, but Linux calls it "evtstrm". + m["evtstrm"] = &ARM64.HasEVTSTRM + + for _, f := range strings.Fields(in) { + if p, ok := m[f]; ok { + *p = true + } + } + return nil +} diff --git a/vendor/golang.org/x/sys/unix/gccgo.go b/vendor/golang.org/x/sys/unix/gccgo.go index 0dee23222..b06f52d74 100644 --- a/vendor/golang.org/x/sys/unix/gccgo.go +++ b/vendor/golang.org/x/sys/unix/gccgo.go @@ -2,8 +2,8 @@ // Use of this source code is governed by a BSD-style // license that can be found in the LICENSE file. -//go:build gccgo && !aix -// +build gccgo,!aix +//go:build gccgo && !aix && !hurd +// +build gccgo,!aix,!hurd package unix diff --git a/vendor/golang.org/x/sys/unix/gccgo_c.c b/vendor/golang.org/x/sys/unix/gccgo_c.c index 2cb1fefac..f98a1c542 100644 --- a/vendor/golang.org/x/sys/unix/gccgo_c.c +++ b/vendor/golang.org/x/sys/unix/gccgo_c.c @@ -2,8 +2,8 @@ // Use of this source code is governed |