1
2# Test case for issue 47993, in which the linker crashes
3# on a bad input instead of issuing an error and exiting.
4
5# This test requires external linking, so use cgo as a proxy
6[!cgo] skip
7
8! go build -ldflags='-linkmode=external' .
9! stderr 'panic'
10stderr '^.*undefined symbol in relocation.*'
11
12-- go.mod --
13
14module issue47993
15
16go 1.16
17
18-- main.go --
19
20package main
21
22type M struct {
23 b bool
24}
25
26// Note the body-less func def here. This is what causes the problems.
27func (m *M) run(fp func())
28
29func doit(m *M) {
30 InAsm()
31 m.run(func() {
32 })
33}
34
35func main() {
36 m := &M{true}
37 doit(m)
38}
39
40func InAsm()
41
42-- main.s --
43
44// Add an assembly function so as to leave open the possibility
45// that body-less functions in Go might be defined in assembly.
46
47// Currently we just need an empty file here.
48
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