mirror of
https://github.com/golang/go
synced 2024-11-19 15:14:45 -07:00
5bfed7c6c0
Normally, a panic/throw only shows the thread stack for the current thread and all paused goroutines. Goroutines running on other threads, or other threads running on their system stacks, are opaque. Change that when GODEBUG=crash, by passing a SIGQUIT around to all the threads when GODEBUG=crash. If this works out reasonably well, we might make the SIGQUIT relay part of the standard panic/throw death, perhaps eliding idle m's. Change-Id: If7dd354f7f3a6e326d17c254afcf4f7681af2f8b Reviewed-on: https://go-review.googlesource.com/2811 Reviewed-by: Rick Hudson <rlh@golang.org>
75 lines
1.5 KiB
Go
75 lines
1.5 KiB
Go
// Copyright 2010 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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// Plan 9-specific system calls
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package runtime
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// open
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const (
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_OREAD = 0
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_OWRITE = 1
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_ORDWR = 2
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_OEXEC = 3
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_OTRUNC = 16
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_OCEXEC = 32
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_ORCLOSE = 64
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_OEXCL = 0x1000
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)
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// rfork
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const (
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_RFNAMEG = 1 << 0
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_RFENVG = 1 << 1
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_RFFDG = 1 << 2
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_RFNOTEG = 1 << 3
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_RFPROC = 1 << 4
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_RFMEM = 1 << 5
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_RFNOWAIT = 1 << 6
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_RFCNAMEG = 1 << 10
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_RFCENVG = 1 << 11
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_RFCFDG = 1 << 12
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_RFREND = 1 << 13
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_RFNOMNT = 1 << 14
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)
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// notify
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const (
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_NCONT = 0
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_NDFLT = 1
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)
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type uinptr _Plink
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type tos struct {
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prof struct { // Per process profiling
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pp *_Plink // known to be 0(ptr)
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next *_Plink // known to be 4(ptr)
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last *_Plink
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first *_Plink
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pid uint32
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what uint32
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}
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cyclefreq uint64 // cycle clock frequency if there is one, 0 otherwise
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kcycles int64 // cycles spent in kernel
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pcycles int64 // cycles spent in process (kernel + user)
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pid uint32 // might as well put the pid here
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clock uint32
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// top of stack is here
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}
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const (
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_NSIG = 14 // number of signals in sigtable array
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_ERRMAX = 128 // max length of note string
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// Notes in runtime·sigtab that are handled by runtime·sigpanic.
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_SIGRFAULT = 2
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_SIGWFAULT = 3
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_SIGINTDIV = 4
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_SIGFLOAT = 5
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_SIGTRAP = 6
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_SIGPROF = 0 // dummy value defined for badsignal
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_SIGQUIT = 0 // dummy value defined for sighandler
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)
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