runtime: record goroutine creation pc and display in traceback
package main
func main() {
go func() { *(*int)(nil) = 0 }()
select{}
}
panic: runtime error: invalid memory address or nil pointer dereference
[signal 0xb code=0x1 addr=0x0 pc=0x1c96]
runtime.panic+0xac /Users/rsc/g/go/src/pkg/runtime/proc.c:1083
runtime.panic(0x11bf0, 0xf8400011f0)
runtime.panicstring+0xa3 /Users/rsc/g/go/src/pkg/runtime/runtime.c:116
runtime.panicstring(0x29a57, 0x0)
runtime.sigpanic+0x144 /Users/rsc/g/go/src/pkg/runtime/darwin/thread.c:470
runtime.sigpanic()
main._func_001+0x16 /Users/rsc/g/go/src/pkg/runtime/x.go:188
main._func_001()
runtime.goexit /Users/rsc/g/go/src/pkg/runtime/proc.c:150
runtime.goexit()
----- goroutine created by -----
main.main+0x3d /Users/rsc/g/go/src/pkg/runtime/x.go:4
goroutine 1 [4]:
runtime.gosched+0x77 /Users/rsc/g/go/src/pkg/runtime/proc.c:598
runtime.gosched()
runtime.block+0x27 /Users/rsc/g/go/src/pkg/runtime/chan.c:680
runtime.block()
main.main+0x44 /Users/rsc/g/go/src/pkg/runtime/x.go:5
main.main()
runtime.mainstart+0xf /Users/rsc/g/go/src/pkg/runtime/amd64/asm.s:77
runtime.mainstart()
runtime.goexit /Users/rsc/g/go/src/pkg/runtime/proc.c:150
runtime.goexit()
----- goroutine created by -----
_rt0_amd64+0x8e /Users/rsc/g/go/src/pkg/runtime/amd64/asm.s:64
Fixes #1563.
R=r
CC=golang-dev
https://golang.org/cl/
4243046