The library initialization code in go-libmain.c sets the C variable runtime_isarchive but failed to set the Go variable runtime.isarchive. We don't currently have a way to let C code access an unexported Go variable, but fortunately the only time the Go function initsig is called with an argument of true is exactly where we want to set isarchive. So let initsig do it. Bootstrapped and ran Go testsuite on x86_64-pc-linux-gnu. Committed to mainline.
Ian
Index: gcc/go/gofrontend/MERGE =================================================================== --- gcc/go/gofrontend/MERGE (revision 243084) +++ gcc/go/gofrontend/MERGE (working copy) @@ -1,4 +1,4 @@ -9be198d960e4bc46e21e4da1e3d4a1619266b8ab +97b949f249515a61d3c09e9e06f08c8af189e967 The first line of this file holds the git revision number of the last merge done from the gofrontend repository. Index: libgo/go/runtime/signal1_unix.go =================================================================== --- libgo/go/runtime/signal1_unix.go (revision 243084) +++ libgo/go/runtime/signal1_unix.go (working copy) @@ -65,6 +65,11 @@ var signalsOK bool //go:nosplit //go:nowritebarrierrec func initsig(preinit bool) { + if preinit { + // preinit is only passed as true if isarchive should be true. + isarchive = true + } + if !preinit { // It's now OK for signal handlers to run. signalsOK = true