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[dev.link] cmd/link: dump symbol info on crash under -v

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If the linker panics, it usually helps dumping all symbols'
information for debugging. Do it under -v.

Change-Id: I66f9e32a0133e763a631f17a218dcdc805c5df2f
Reviewed-on: https://go-review.googlesource.com/c/go/+/242078
Run-TryBot: Cherry Zhang <cherryyz@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Jeremy Faller <jeremy@golang.org>
This commit is contained in:
Cherry Zhang 2020-07-10 18:53:12 -04:00
parent f3a29d3a34
commit 5698ec36a8
1 changed files with 5 additions and 0 deletions
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5
src/cmd/link/internal/ld/main.go
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@ -136,6 +136,11 @@ func Main(arch *sys.Arch, theArch Arch) {
objabi.Flagparse(usage)
if ctxt.Debugvlog > 0 {
// dump symbol info on crash
defer func() { ctxt.loader.Dump() }()
}
switch *flagHeadType {
case "":
case "windowsgui":