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Revert "runtime/trace: add missing events for the locked g in extra M."
This reverts commit ea9c3fd42d
.
Reason for revert: break linux/ricsv64, openbsd/arm, illumos/amd64 builders
Change-Id: I98479a8f63e76eed89a0e8846acf2c73e8441377
Reviewed-on: https://go-review.googlesource.com/c/go/+/423437
Reviewed-by: Than McIntosh <thanm@google.com>
Auto-Submit: Michael Pratt <mpratt@google.com>
Reviewed-by: Michael Pratt <mpratt@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Run-TryBot: Cuong Manh Le <cuong.manhle.vn@gmail.com>
This commit is contained in:
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@ -187,7 +187,7 @@ func GoroutineStats(events []*Event) map[uint64]*GDesc {
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gs[g.ID] = g
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case EvGoStart, EvGoStartLabel:
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g := gs[ev.G]
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if g.PC == 0 && len(ev.Stk) > 0 {
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if g.PC == 0 {
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g.PC = ev.Stk[0].PC
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g.Name = ev.Stk[0].Fn
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}
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@ -353,6 +353,5 @@ func RelatedGoroutines(events []*Event, goid uint64) map[uint64]bool {
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func IsSystemGoroutine(entryFn string) bool {
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// This mimics runtime.isSystemGoroutine as closely as
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// possible.
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// Also, locked g in extra M (with empty entryFn) is system goroutine.
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return entryFn == "" || entryFn != "runtime.main" && strings.HasPrefix(entryFn, "runtime.")
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return entryFn != "runtime.main" && strings.HasPrefix(entryFn, "runtime.")
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}
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@ -710,16 +710,3 @@ func TestCgoTracebackGoroutineProfile(t *testing.T) {
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t.Fatalf("want %s, got %s\n", want, output)
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}
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}
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func TestCgoTraceParser(t *testing.T) {
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// Test issue 29707.
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switch runtime.GOOS {
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case "windows", "plan9":
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t.Skipf("skipping cgo trace parser test on %s", runtime.GOOS)
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}
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output := runTestProg(t, "testprogcgo", "CgoTraceParser")
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want := "OK\n"
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if output != want {
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t.Fatalf("want %s, got %s\n", want, output)
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}
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}
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@ -1917,7 +1917,6 @@ func oneNewExtraM() {
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casgstatus(gp, _Gidle, _Gdead)
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gp.m = mp
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mp.curg = gp
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mp.isextra = true
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mp.lockedInt++
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mp.lockedg.set(gp)
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gp.lockedm.set(mp)
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@ -1925,14 +1924,6 @@ func oneNewExtraM() {
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if raceenabled {
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gp.racectx = racegostart(abi.FuncPCABIInternal(newextram) + sys.PCQuantum)
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}
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if trace.enabled {
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// trigger two trace events for the locked g in the extra m,
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// since the next event of the g will be traceEvGoSysExit in exitsyscall,
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// while calling from C thread to Go.
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traceGoCreate(gp, 0) // no start pc
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gp.traceseq++
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traceEvent(traceEvGoInSyscall, -1, gp.goid)
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}
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// put on allg for garbage collector
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allgadd(gp)
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@ -546,7 +546,6 @@ type m struct {
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newSigstack bool // minit on C thread called sigaltstack
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printlock int8
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incgo bool // m is executing a cgo call
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isextra bool // m is an extra m
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freeWait uint32 // if == 0, safe to free g0 and delete m (atomic)
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fastrand uint64
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needextram bool
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58
src/runtime/testdata/testprogcgo/issue29707.go
vendored
58
src/runtime/testdata/testprogcgo/issue29707.go
vendored
@ -1,58 +0,0 @@
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// Copyright 2011 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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//go:build !plan9 && !windows
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// +build !plan9,!windows
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// This is for issue #29707
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package main
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/*
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#include <pthread.h>
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extern void* callback(void*);
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typedef void* (*cb)(void*);
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static void testCallback(cb cb) {
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pthread_t thread_id;
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pthread_create(&thread_id, NULL, cb, NULL);
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pthread_join(thread_id, NULL);
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}
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*/
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import "C"
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import (
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"bytes"
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"fmt"
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traceparser "internal/trace"
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"runtime/trace"
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"time"
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"unsafe"
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)
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func init() {
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register("CgoTraceParser", CgoTraceParser)
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}
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//export callback
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func callback(unsafe.Pointer) unsafe.Pointer {
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time.Sleep(time.Millisecond)
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return nil
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}
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func CgoTraceParser() {
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buf := new(bytes.Buffer)
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trace.Start(buf)
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C.testCallback(C.cb(C.callback))
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trace.Stop()
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_, err := traceparser.Parse(buf, "")
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if err != nil {
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fmt.Println("Parse error: ", err)
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} else {
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fmt.Println("OK")
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}
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}
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@ -272,17 +272,6 @@ func StartTrace() error {
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if status == _Gsyscall {
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gp.traceseq++
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traceEvent(traceEvGoInSyscall, -1, gp.goid)
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} else if status == _Gdead && gp.m != nil && gp.m.isextra {
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// trigger two trace events for the dead g in the extra m,
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// since the next event of the g will be traceEvGoSysExit in exitsyscall,
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// while calling from C thread to Go.
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gp.traceseq = 0
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gp.tracelastp = getg().m.p
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// +PCQuantum because traceFrameForPC expects return PCs and subtracts PCQuantum.
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id := trace.stackTab.put([]uintptr{startPCforTrace(0) + sys.PCQuantum}) // no start pc
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traceEvent(traceEvGoCreate, -1, gp.goid, uint64(id), stackID)
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gp.traceseq++
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traceEvent(traceEvGoInSyscall, -1, gp.goid)
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} else {
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gp.sysblocktraced = false
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}
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@ -1566,7 +1555,7 @@ func trace_userLog(id uint64, category, message string) {
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func startPCforTrace(pc uintptr) uintptr {
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f := findfunc(pc)
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if !f.valid() {
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return pc // may happen for locked g in extra M since its pc is 0.
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return pc // should not happen, but don't care
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}
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w := funcdata(f, _FUNCDATA_WrapInfo)
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if w == nil {
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