diff options
Diffstat (limited to 'vendor/golang.org/x/sys/cpu/cpu_openbsd_arm64.go')
| -rw-r--r-- | vendor/golang.org/x/sys/cpu/cpu_openbsd_arm64.go | 65 |
1 files changed, 0 insertions, 65 deletions
diff --git a/vendor/golang.org/x/sys/cpu/cpu_openbsd_arm64.go b/vendor/golang.org/x/sys/cpu/cpu_openbsd_arm64.go deleted file mode 100644 index 85b64d5..0000000 --- a/vendor/golang.org/x/sys/cpu/cpu_openbsd_arm64.go +++ /dev/null | |||
| @@ -1,65 +0,0 @@ | |||
| 1 | // Copyright 2022 The Go Authors. All rights reserved. | ||
| 2 | // Use of this source code is governed by a BSD-style | ||
| 3 | // license that can be found in the LICENSE file. | ||
| 4 | |||
| 5 | package cpu | ||
| 6 | |||
| 7 | import ( | ||
| 8 | "syscall" | ||
| 9 | "unsafe" | ||
| 10 | ) | ||
| 11 | |||
| 12 | // Minimal copy of functionality from x/sys/unix so the cpu package can call | ||
| 13 | // sysctl without depending on x/sys/unix. | ||
| 14 | |||
| 15 | const ( | ||
| 16 | // From OpenBSD's sys/sysctl.h. | ||
| 17 | _CTL_MACHDEP = 7 | ||
| 18 | |||
| 19 | // From OpenBSD's machine/cpu.h. | ||
| 20 | _CPU_ID_AA64ISAR0 = 2 | ||
| 21 | _CPU_ID_AA64ISAR1 = 3 | ||
| 22 | ) | ||
| 23 | |||
| 24 | // Implemented in the runtime package (runtime/sys_openbsd3.go) | ||
| 25 | func syscall_syscall6(fn, a1, a2, a3, a4, a5, a6 uintptr) (r1, r2 uintptr, err syscall.Errno) | ||
| 26 | |||
| 27 | //go:linkname syscall_syscall6 syscall.syscall6 | ||
| 28 | |||
| 29 | func sysctl(mib []uint32, old *byte, oldlen *uintptr, new *byte, newlen uintptr) (err error) { | ||
| 30 | _, _, errno := syscall_syscall6(libc_sysctl_trampoline_addr, uintptr(unsafe.Pointer(&mib[0])), uintptr(len(mib)), uintptr(unsafe.Pointer(old)), uintptr(unsafe.Pointer(oldlen)), uintptr(unsafe.Pointer(new)), uintptr(newlen)) | ||
| 31 | if errno != 0 { | ||
| 32 | return errno | ||
| 33 | } | ||
| 34 | return nil | ||
| 35 | } | ||
| 36 | |||
| 37 | var libc_sysctl_trampoline_addr uintptr | ||
| 38 | |||
| 39 | //go:cgo_import_dynamic libc_sysctl sysctl "libc.so" | ||
| 40 | |||
| 41 | func sysctlUint64(mib []uint32) (uint64, bool) { | ||
| 42 | var out uint64 | ||
| 43 | nout := unsafe.Sizeof(out) | ||
| 44 | if err := sysctl(mib, (*byte)(unsafe.Pointer(&out)), &nout, nil, 0); err != nil { | ||
| 45 | return 0, false | ||
| 46 | } | ||
| 47 | return out, true | ||
| 48 | } | ||
| 49 | |||
| 50 | func doinit() { | ||
| 51 | setMinimalFeatures() | ||
| 52 | |||
| 53 | // Get ID_AA64ISAR0 and ID_AA64ISAR1 from sysctl. | ||
| 54 | isar0, ok := sysctlUint64([]uint32{_CTL_MACHDEP, _CPU_ID_AA64ISAR0}) | ||
| 55 | if !ok { | ||
| 56 | return | ||
| 57 | } | ||
| 58 | isar1, ok := sysctlUint64([]uint32{_CTL_MACHDEP, _CPU_ID_AA64ISAR1}) | ||
| 59 | if !ok { | ||
| 60 | return | ||
| 61 | } | ||
| 62 | parseARM64SystemRegisters(isar0, isar1, 0) | ||
| 63 | |||
| 64 | Initialized = true | ||
| 65 | } | ||