go: cmd/cgo: missing references to symbols in .syso

What version of Go are you using (go version)?

$ go version
go version devel go1.19-2bea43b0e7 Thu May 12 04:47:29 2022 +0000 linux/amd64

Does this issue reproduce with the latest release?

yes.

What operating system and processor architecture are you using (go env)?

$ go env
GO111MODULE=""
GOARCH="amd64"
GOBIN=""
GOCACHE="/home/binet/.cache/go-build"
GOENV="/home/binet/.config/go/env"
GOEXE=""
GOEXPERIMENT=""
GOFLAGS=""
GOHOSTARCH="amd64"
GOHOSTOS="linux"
GOINSECURE=""
GOMODCACHE="/home/binet/dev/go/gocode/pkg/mod"
GONOPROXY="gitlab.cern.ch/tile-in-one/tio-go"
GONOSUMDB="gitlab.cern.ch/tile-in-one/tio-go"
GOOS="linux"
GOPATH="/home/binet/dev/go/gocode"
GOPRIVATE="gitlab.cern.ch/tile-in-one/tio-go"
GOPROXY="https://proxy.golang.org,direct"
GOROOT="/home/binet/sdk/go"
GOSUMDB="sum.golang.org"
GOTMPDIR=""
GOTOOLDIR="/home/binet/sdk/go/pkg/tool/linux_amd64"
GOVCS=""
GOVERSION="devel go1.19-2bea43b0e7 Thu May 12 04:47:29 2022 +0000"
GCCGO="gccgo"
GOAMD64="v1"
AR="ar"
CC="gcc"
CXX="g++"
CGO_ENABLED="1"
GOMOD="/dev/null"
GOWORK=""
CGO_CFLAGS="-g -O2"
CGO_CPPFLAGS=""
CGO_CXXFLAGS="-g -O2"
CGO_FFLAGS="-g -O2"
CGO_LDFLAGS="-g -O2"
PKG_CONFIG="pkg-config"
GOGCCFLAGS="-fPIC -m64 -pthread -fmessage-length=0 -fdebug-prefix-map=/tmp/go-build3696923155=/tmp/go-build -gno-record-gcc-switches"

What did you do?

$> cd somewhere
$> git clone git@github.com:gioui/gio gio && cd gio
$> go build ./...
[...]
gioui.org/widget/material
gioui.org/gpu/internal/vulkan
gioui.org/gpu
gioui.org/internal/egl
# gioui.org/internal/egl
/usr/bin/ld: /home/binet/work/gio/pkg/mod/gioui.org/shader@v1.0.6/piet/backdrop_linux_amd64.syso: in function `backdrop_coroutine_begin':
:(.text+0x2b): undefined reference to `coroutine_alloc_frame'
/usr/bin/ld: /home/binet/work/gio/pkg/mod/gioui.org/shader@v1.0.6/piet/backdrop_linux_amd64.syso: in function `backdrop_coroutine_begin.destroy':
:(.text+0x2a42): undefined reference to `coroutine_free_frame'
/usr/bin/ld: /home/binet/work/gio/pkg/mod/gioui.org/shader@v1.0.6/piet/backdrop_linux_amd64.syso: in function `backdrop_coroutine_begin.cleanup':
:(.text+0x2a54): undefined reference to `coroutine_free_frame'
/usr/bin/ld: /home/binet/work/gio/pkg/mod/gioui.org/shader@v1.0.6/piet/binning_linux_amd64.syso: in function `binning_coroutine_begin':
:(.text+0x24): undefined reference to `coroutine_alloc_frame'
/usr/bin/ld: /home/binet/work/gio/pkg/mod/gioui.org/shader@v1.0.6/piet/binning_linux_amd64.syso: in function `binning_coroutine_begin.resume':
:(.text+0x13fe): undefined reference to `floorf'
/usr/bin/ld: :(.text+0x140f): undefined reference to `floorf'
/usr/bin/ld: :(.text+0x1421): undefined reference to `floorf'
/usr/bin/ld: :(.text+0x1434): undefined reference to `floorf'
/usr/bin/ld: :(.text+0x1464): undefined reference to `floorf'

everything works fine w/ Go-1.18.x

What did you expect to see?

a valid build.