Stowage/go
2
0
Fork 0
mirror of https://github.com/golang/go.git synced 2025-12-08 06:10:04 +00:00
Code Issues Projects Releases Packages Wiki Activity

cmd/go: use build ID as plugin symbol prefix

Browse source 
Updates #17821

Change-Id: Iebd2e88b2d4f3d757ffad72456f4bfc0607d8110
Reviewed-on: https://go-review.googlesource.com/33162
Run-TryBot: David Crawshaw <crawshaw@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
This commit is contained in:
David Crawshaw 2016-11-12 06:50:24 -05:00
parent 03da2690c9
commit fab3fcaf75
5 changed files with 64 additions and 2 deletions
Download patch file Download diff file Expand all files Collapse all files

31
misc/cgo/testplugin/src/host/host.go
View file

@ -18,6 +18,35 @@ func init() {
common.X *= 5
}
// testUnnamed tests that two plugins built with .go files passed on
// the command line do not have overlapping symbols. That is,
// unnamed1.so/FuncInt and unnamed2.so/FuncInt should be distinct functions.
func testUnnamed() {
p, err := plugin.Open("unnamed1.so")
if err != nil {
log.Fatalf(`plugin.Open("unnamed1.so"): %v`, err)
}
fn, err := p.Lookup("FuncInt")
if err != nil {
log.Fatalf(`unnamed1.so: Lookup("FuncInt") failed: %v`, err)
}
if got, want := fn.(func() int)(), 1; got != want {
log.Fatalf("unnamed1.so: FuncInt()=%d, want %d", got, want)
}
p, err = plugin.Open("unnamed2.so")
if err != nil {
log.Fatalf(`plugin.Open("unnamed2.so"): %v`, err)
}
fn, err = p.Lookup("FuncInt")
if err != nil {
log.Fatalf(`unnamed2.so: Lookup("FuncInt") failed: %v`, err)
}
if got, want := fn.(func() int)(), 2; got != want {
log.Fatalf("unnamed2.so: FuncInt()=%d, want %d", got, want)
}
}
func main() {
if got, want := common.X, 3*5; got != want {
log.Fatalf("before plugin load common.X=%d, want %d", got, want)
@ -113,5 +142,7 @@ func main() {
log.Fatalf(`plugin.Open("plugin-mismatch.so"): error does not mention "different version": %v`, s)
}
testUnnamed()
fmt.Println("PASS")
}