runtime: GC corrupting live objects in cmd/link #11617
Description
http://build.golang.org/log/dbd04ef919b4bba31c79a2882fda1ba41008cace (386)
# go run run.go -- fixedbugs/bug484.go
exit status 2
# command-line-arguments
go.string."npcdata": go.string."npcdata": invalid relocation 414675216+173 not in [0,16)
http://build.golang.org/log/0b184b4b886b6bf86634e81ca10fadbc6fd5d0f4 (386)
# go run run.go -- nosplit.go
incorrect output
BUG
rejected incorrectly:
main 128
linker output:
# _/tmp/go-test-nosplit187529840
go.string.hdr."eodSent": go.string.hdr."eodSent": invalid relocation 414647280+173 not in [0,8)
http://build.golang.org/log/a9e3dca50638f63391106fa63af858506eba811a (386)
# go run run.go -- fixedbugs/bug290.go
exit status 2
# command-line-arguments
go.string."runtime.tforkt": go.string."runtime.tforkt": invalid relocation 410364976+173 not in [0,23)
http://build.golang.org/log/7c9e9ef6f2e9f8b568fc5efaa40368f480ce6818 (amd64)
# go run run.go -- fixedbugs/issue6055.go
exit status 2
# command-line-arguments
go.string."bad frame layout": go.string."bad frame layout": invalid relocation 544120224+200 not in [0,33)
http://build.golang.org/log/3f96c7856ce7548618d41419892da7fa7d8ab1e5 (amd64)
# go run run.go -- fixedbugs/bug242.go
exit status 2
# command-line-arguments
go.string."runtime.hchan": go.string."runtime.hchan": invalid relocation 544858352+200 not in [0,30)
See also issue #10567 where TestCgoExternalThread was failing with "invalid relocation" errors (among others).
Somewhat small sample set, but notably the invalid offset seems to always be 173 on openbsd/386 and 200 on openbsd/amd64.