release/dist, tool/gocross: add fake "windowsdll" GOOS to gocross

We're going to need to build a DLL containing custom actions for the installer.
This patch adds the foundations of that capability to dist and gocross.

Updates https://github.com/tailscale/corp/issues/13998

Signed-off-by: Aaron Klotz <aaron@tailscale.com>
This commit is contained in:
Aaron Klotz
2023-09-05 13:46:35 -06:00
parent 5473d11caa
commit ea6ca78963
2 changed files with 26 additions and 2 deletions

View File

@@ -31,6 +31,7 @@ func autoflagsForTest(argv []string, env *Environment, goroot, nativeGOOS, nativ
var (
subcommand = ""
cc = "cc"
targetOS = env.Get("GOOS", nativeGOOS)
targetArch = env.Get("GOARCH", nativeGOARCH)
buildFlags = []string{"-trimpath"}
@@ -89,6 +90,22 @@ func autoflagsForTest(argv []string, env *Environment, goroot, nativeGOOS, nativ
// quoted in its entirety as a member of -ldflags. Source:
// https://github.com/golang/go/issues/6234
ldflags = append(ldflags, fmt.Sprintf("'-extldflags=%s'", strings.Join(extldflags, " ")))
case "windowsdll":
// Fake GOOS that translates to "windows, but building .dlls not .exes"
targetOS = "windows"
cgo = true
buildFlags = append(buildFlags, "-buildmode=c-shared")
ldflags = append(ldflags, "-H", "windows", "-s")
var mingwArch string
switch targetArch {
case "amd64":
mingwArch = "x86_64"
case "386":
mingwArch = "i686"
default:
return nil, nil, fmt.Errorf("unsupported GOARCH=%q when building with cgo", targetArch)
}
cc = fmt.Sprintf("%s-w64-mingw32-gcc", mingwArch)
case "windowsgui":
// Fake GOOS that translates to "windows, but building GUI .exes not console .exes"
targetOS = "windows"
@@ -166,7 +183,7 @@ func autoflagsForTest(argv []string, env *Environment, goroot, nativeGOOS, nativ
env.Set("CGO_ENABLED", boolStr(cgo))
env.Set("CGO_CFLAGS", strings.Join(cgoCflags, " "))
env.Set("CGO_LDFLAGS", strings.Join(cgoLdflags, " "))
env.Set("CC", "cc")
env.Set("CC", cc)
env.Set("TS_LINK_FAIL_REFLECT", boolStr(failReflect))
env.Set("GOROOT", goroot)