mirror of
https://github.com/prometheus/prometheus.git
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68 lines
1.6 KiB
Go
68 lines
1.6 KiB
Go
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// Copyright 2016 Peter Mattis.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
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// implied. See the License for the specific language governing
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// permissions and limitations under the License. See the AUTHORS file
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// for names of contributors.
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// +build amd64 amd64p32 arm
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// +build go1.5,!go1.6
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package goid
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import "unsafe"
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// Just enough of the structs from runtime/runtime2.go to get the offset to goid.
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// See https://github.com/golang/go/blob/release-branch.go1.5/src/runtime/runtime2.go
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type stack struct {
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lo uintptr
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hi uintptr
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}
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type gobuf struct {
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sp uintptr
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pc uintptr
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g uintptr
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ctxt uintptr
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ret uintptr
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lr uintptr
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bp uintptr
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}
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type g struct {
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stack stack
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stackguard0 uintptr
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stackguard1 uintptr
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_panic uintptr
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_defer uintptr
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m uintptr
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stackAlloc uintptr
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sched gobuf
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syscallsp uintptr
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syscallpc uintptr
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stkbar []uintptr
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stkbarPos uintptr
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param unsafe.Pointer
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atomicstatus uint32
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stackLock uint32
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goid int64 // Here it is!
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}
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// Backdoor access to runtime·getg().
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func getg() uintptr // in goid_go1.5plus.s
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func Get() int64 {
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gg := (*g)(unsafe.Pointer(getg()))
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return gg.goid
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}
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