all: add new GOOS=illumos, split out of GOOS=solaris

Like GOOS=android which implies the "linux" build tag, GOOS=illumos
implies the "solaris" build tag. This lets the existing ecosystem of
packages still work on illumos, but still permits packages to start
differentiating between solaris and illumos.

Fixes #20603

Change-Id: I8f4eabf1a66060538dca15d7658c1fbc6c826622
Reviewed-on: https://go-review.googlesource.com/c/go/+/174457
Run-TryBot: Benny Siegert <bsiegert@gmail.com>
Reviewed-by: Benny Siegert <bsiegert@gmail.com>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>

17 files changed, 43 insertions, 0 deletions

diff --git a/src/runtime/internal/sys/gengoos.go b/src/runtime/internal/sys/gengoos.go
index d078921874..952b13649d 100644
--- a/src/runtime/internal/sys/gengoos.go
+++ b/src/runtime/internal/sys/gengoos.go
@@ -49,6 +49,9 @@ func main() {
 		if target == "linux" {
 			fmt.Fprintf(&buf, "// +build !android\n") // must explicitly exclude android for linux
 		}
+		if target == "solaris" {
+			fmt.Fprintf(&buf, "// +build !illumos\n") // must explicitly exclude illumos for solaris
+		}
 		fmt.Fprintf(&buf, "// +build %s\n\n", target) // must explicitly include target for bootstrapping purposes
 		fmt.Fprintf(&buf, "package sys\n\n")
 		fmt.Fprintf(&buf, "const GOOS = `%s`\n\n", target)
diff --git a/src/runtime/internal/sys/zgoos_aix.go b/src/runtime/internal/sys/zgoos_aix.go
index 909bfc5e93..d97485c43c 100644
--- a/src/runtime/internal/sys/zgoos_aix.go
+++ b/src/runtime/internal/sys/zgoos_aix.go
@@ -12,6 +12,7 @@ const GoosDarwin = 0
 const GoosDragonfly = 0
 const GoosFreebsd = 0
 const GoosHurd = 0
+const GoosIllumos = 0
 const GoosJs = 0
 const GoosLinux = 0
 const GoosNacl = 0
diff --git a/src/runtime/internal/sys/zgoos_android.go b/src/runtime/internal/sys/zgoos_android.go
index 434ce46712..eec970b064 100644
--- a/src/runtime/internal/sys/zgoos_android.go
+++ b/src/runtime/internal/sys/zgoos_android.go
@@ -12,6 +12,7 @@ const GoosDarwin = 0
 const GoosDragonfly = 0
 const GoosFreebsd = 0
 const GoosHurd = 0
+const GoosIllumos = 0
 const GoosJs = 0
 const GoosLinux = 0
 const GoosNacl = 0
diff --git a/src/runtime/internal/sys/zgoos_darwin.go b/src/runtime/internal/sys/zgoos_darwin.go
index b645d1cf5f..c40819ee55 100644
--- a/src/runtime/internal/sys/zgoos_darwin.go
+++ b/src/runtime/internal/sys/zgoos_darwin.go
@@ -12,6 +12,7 @@ const GoosDarwin = 1
 const GoosDragonfly = 0
 const GoosFreebsd = 0
 const GoosHurd = 0
+const GoosIllumos = 0
 const GoosJs = 0
 const GoosLinux = 0
 const GoosNacl = 0
diff --git a/src/runtime/internal/sys/zgoos_dragonfly.go b/src/runtime/internal/sys/zgoos_dragonfly.go
index 154cec370f..3dc4edcc31 100644
--- a/src/runtime/internal/sys/zgoos_dragonfly.go
+++ b/src/runtime/internal/sys/zgoos_dragonfly.go
@@ -12,6 +12,7 @@ const GoosDarwin = 0
 const GoosDragonfly = 1
 const GoosFreebsd = 0
 const GoosHurd = 0
+const GoosIllumos = 0
 const GoosJs = 0
 const GoosLinux = 0
 const GoosNacl = 0
diff --git a/src/runtime/internal/sys/zgoos_freebsd.go b/src/runtime/internal/sys/zgoos_freebsd.go
index 5f41c03445..6c98b342f9 100644
--- a/src/runtime/internal/sys/zgoos_freebsd.go
+++ b/src/runtime/internal/sys/zgoos_freebsd.go
@@ -12,6 +12,7 @@ const GoosDarwin = 0
 const GoosDragonfly = 0
 const GoosFreebsd = 1
 const GoosHurd = 0
+const GoosIllumos = 0
 const GoosJs = 0
 const GoosLinux = 0
 const GoosNacl = 0
diff --git a/src/runtime/internal/sys/zgoos_hurd.go b/src/runtime/internal/sys/zgoos_hurd.go
index 53f7fc384b..d6dcc7bad4 100644
--- a/src/runtime/internal/sys/zgoos_hurd.go
+++ b/src/runtime/internal/sys/zgoos_hurd.go
@@ -12,6 +12,7 @@ const GoosDarwin = 0
 const GoosDragonfly = 0
 const GoosFreebsd = 0
 const GoosHurd = 1
+const GoosIllumos = 0
 const GoosJs = 0
 const GoosLinux = 0
 const GoosNacl = 0
diff --git a/src/runtime/internal/sys/zgoos_illumos.go b/src/runtime/internal/sys/zgoos_illumos.go
new file mode 100644
index 0000000000..17f4ecc34e
--- /dev/null
+++ b/src/runtime/internal/sys/zgoos_illumos.go
@@ -0,0 +1,24 @@
+// Code generated by gengoos.go using 'go generate'. DO NOT EDIT.
+
+// +build illumos
+
+package sys
+
+const GOOS = `illumos`
+
+const GoosAix = 0
+const GoosAndroid = 0
+const GoosDarwin = 0
+const GoosDragonfly = 0
+const GoosFreebsd = 0
+const GoosHurd = 0
+const GoosIllumos = 1
+const GoosJs = 0
+const GoosLinux = 0
+const GoosNacl = 0
+const GoosNetbsd = 0
+const GoosOpenbsd = 0
+const GoosPlan9 = 0
+const GoosSolaris = 0
+const GoosWindows = 0
+const GoosZos = 0
diff --git a/src/runtime/internal/sys/zgoos_js.go b/src/runtime/internal/sys/zgoos_js.go
index c6cca49bd9..74c9943d9b 100644
--- a/src/runtime/internal/sys/zgoos_js.go
+++ b/src/runtime/internal/sys/zgoos_js.go
@@ -12,6 +12,7 @@ const GoosDarwin = 0
 const GoosDragonfly = 0
 const GoosFreebsd = 0
 const GoosHurd = 0
+const GoosIllumos = 0
 const GoosJs = 1
 const GoosLinux = 0
 const GoosNacl = 0
diff --git a/src/runtime/internal/sys/zgoos_linux.go b/src/runtime/internal/sys/zgoos_linux.go
index 088dbc105b..1d5fcb0685 100644
--- a/src/runtime/internal/sys/zgoos_linux.go
+++ b/src/runtime/internal/sys/zgoos_linux.go
@@ -13,6 +13,7 @@ const GoosDarwin = 0
 const GoosDragonfly = 0
 const GoosFreebsd = 0
 const GoosHurd = 0
+const GoosIllumos = 0
 const GoosJs = 0
 const GoosLinux = 1
 const GoosNacl = 0
diff --git a/src/runtime/internal/sys/zgoos_nacl.go b/src/runtime/internal/sys/zgoos_nacl.go
index 65bec4af9e..9e65b6f185 100644
--- a/src/runtime/internal/sys/zgoos_nacl.go
+++ b/src/runtime/internal/sys/zgoos_nacl.go
@@ -12,6 +12,7 @@ const GoosDarwin = 0
 const GoosDragonfly = 0
 const GoosFreebsd = 0
 const GoosHurd = 0
+const GoosIllumos = 0
 const GoosJs = 0
 const GoosLinux = 0
 const GoosNacl = 1
diff --git a/src/runtime/internal/sys/zgoos_netbsd.go b/src/runtime/internal/sys/zgoos_netbsd.go
index 93d0fa7e11..194fa6e432 100644
--- a/src/runtime/internal/sys/zgoos_netbsd.go
+++ b/src/runtime/internal/sys/zgoos_netbsd.go
@@ -12,6 +12,7 @@ const GoosDarwin = 0
 const GoosDragonfly = 0
 const GoosFreebsd = 0
 const GoosHurd = 0
+const GoosIllumos = 0
 const GoosJs = 0
 const GoosLinux = 0
 const GoosNacl = 0
diff --git a/src/runtime/internal/sys/zgoos_openbsd.go b/src/runtime/internal/sys/zgoos_openbsd.go
index 79193593f5..2108691679 100644
--- a/src/runtime/internal/sys/zgoos_openbsd.go
+++ b/src/runtime/internal/sys/zgoos_openbsd.go
@@ -12,6 +12,7 @@ const GoosDarwin = 0
 const GoosDragonfly = 0
 const GoosFreebsd = 0
 const GoosHurd = 0
+const GoosIllumos = 0
 const GoosJs = 0
 const GoosLinux = 0
 const GoosNacl = 0
diff --git a/src/runtime/internal/sys/zgoos_plan9.go b/src/runtime/internal/sys/zgoos_plan9.go
index 2b95e08080..e632a90b2e 100644
--- a/src/runtime/internal/sys/zgoos_plan9.go
+++ b/src/runtime/internal/sys/zgoos_plan9.go
@@ -12,6 +12,7 @@ const GoosDarwin = 0
 const GoosDragonfly = 0
 const GoosFreebsd = 0
 const GoosHurd = 0
+const GoosIllumos = 0
 const GoosJs = 0
 const GoosLinux = 0
 const GoosNacl = 0
diff --git a/src/runtime/internal/sys/zgoos_solaris.go b/src/runtime/internal/sys/zgoos_solaris.go
index 6e3988aed0..67b2ffbfcd 100644
--- a/src/runtime/internal/sys/zgoos_solaris.go
+++ b/src/runtime/internal/sys/zgoos_solaris.go
@@ -1,5 +1,6 @@
 // Code generated by gengoos.go using 'go generate'. DO NOT EDIT.
 
+// +build !illumos
 // +build solaris
 
 package sys
@@ -12,6 +13,7 @@ const GoosDarwin = 0
 const GoosDragonfly = 0
 const GoosFreebsd = 0
 const GoosHurd = 0
+const GoosIllumos = 0
 const GoosJs = 0
 const GoosLinux = 0
 const GoosNacl = 0
diff --git a/src/runtime/internal/sys/zgoos_windows.go b/src/runtime/internal/sys/zgoos_windows.go
index a56e12544a..cf2d6f4fb0 100644
--- a/src/runtime/internal/sys/zgoos_windows.go
+++ b/src/runtime/internal/sys/zgoos_windows.go
@@ -12,6 +12,7 @@ const GoosDarwin = 0
 const GoosDragonfly = 0
 const GoosFreebsd = 0
 const GoosHurd = 0
+const GoosIllumos = 0
 const GoosJs = 0
 const GoosLinux = 0
 const GoosNacl = 0
diff --git a/src/runtime/internal/sys/zgoos_zos.go b/src/runtime/internal/sys/zgoos_zos.go
index 0f56e46002..e5d79accb4 100644
--- a/src/runtime/internal/sys/zgoos_zos.go
+++ b/src/runtime/internal/sys/zgoos_zos.go
@@ -12,6 +12,7 @@ const GoosDarwin = 0
 const GoosDragonfly = 0
 const GoosFreebsd = 0
 const GoosHurd = 0
+const GoosIllumos = 0
 const GoosJs = 0
 const GoosLinux = 0
 const GoosNacl = 0