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runtime: print goid when throwing in gentraceback

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This makes it easier to figure out where the crash is occurring.

Change-Id: Ie1f78a360367090dcd61c61b2a55c34f3e2ff2eb
Reviewed-on: https://go-review.googlesource.com/c/go/+/390034
Trust: David Chase <drchase@google.com>
Reviewed-by: David Chase <drchase@google.com>
Trust: Michael Pratt <mpratt@google.com>
Run-TryBot: Michael Pratt <mpratt@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Cherry Mui <cherryyz@google.com>
This commit is contained in:
Michael Pratt 2022-03-04 11:17:43 -05:00
parent 63bd6f68e6
commit cc9d3f548a
2 changed files with 3 additions and 3 deletions
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2
src/runtime/crash_test.go
View File

@ -665,7 +665,7 @@ retry:
func TestBadTraceback(t *testing.T) {
output := runTestProg(t, "testprog", "BadTraceback")
for _, want := range []string{
"runtime: unexpected return pc",
"unexpected return pc",
"called from 0xbad",
"00000bad", // Smashed LR in hex dump
"<main.badLR", // Symbolization in hex dump (badLR1 or badLR2)

4
src/runtime/traceback.go
View File

@ -113,7 +113,7 @@ func gentraceback(pc0, sp0, lr0 uintptr, gp *g, skip int, pcbuf *uintptr, max in
f := findfunc(frame.pc)
if !f.valid() {
if callback != nil || printing {
print("runtime: unknown pc ", hex(frame.pc), "\n")
print("runtime: g ", gp.goid, ": unknown pc ", hex(frame.pc), "\n")
tracebackHexdump(gp.stack, &frame, 0)
}
if callback != nil {
@ -247,7 +247,7 @@ func gentraceback(pc0, sp0, lr0 uintptr, gp *g, skip int, pcbuf *uintptr, max in
doPrint = false
}
if callback != nil || doPrint {
print("runtime: unexpected return pc for ", funcname(f), " called from ", hex(frame.lr), "\n")
print("runtime: g ", gp.goid, ": unexpected return pc for ", funcname(f), " called from ", hex(frame.lr), "\n")
tracebackHexdump(gp.stack, &frame, lrPtr)
}
if callback != nil {