| // Copyright 2012 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 runtime |
| |
| import _ "unsafe" // for linkname |
| |
| const ( |
| // vdsoArrayMax is the byte-size of a maximally sized array on this architecture. |
| // See cmd/compile/internal/amd64/galign.go arch.MAXWIDTH initialization. |
| vdsoArrayMax = 1<<50 - 1 |
| ) |
| |
| var vdsoLinuxVersion = vdsoVersionKey{"LINUX_2.6", 0x3ae75f6} |
| |
| var vdsoSymbolKeys = []vdsoSymbolKey{ |
| {"__vdso_gettimeofday", 0x315ca59, 0xb01bca00, &vdsoGettimeofdaySym}, |
| {"__vdso_clock_gettime", 0xd35ec75, 0x6e43a318, &vdsoClockgettimeSym}, |
| {"__vdso_getrandom", 0x25425d, 0x84a559bf, &vdsoGetrandomSym}, |
| } |
| |
| var ( |
| vdsoGettimeofdaySym uintptr |
| vdsoClockgettimeSym uintptr |
| vdsoGetrandomSym uintptr |
| ) |
| |
| // vdsoGettimeofdaySym is accessed from the syscall package. |
| //go:linkname vdsoGettimeofdaySym |