go/build, runtime/internal/sys: reserve RISC-V arch names

In #17528 it was discussed (off-topic to the actual issue) to reserve
GOARCH names for the RISC-V architecture. With the first RISC-V
Linux-capable development boards released (e.g. HiFive Unleashed),
Linux distributions being ported to RISC-V (e.g. Debian, Fedora) and
RISC-V support being added to gccgo (CL 96377), it becomes more likely
that Go software (and maybe Go itself) will be ported as well.

Add riscv and riscv64 (which is already used by gccgo), so Go 1.11 will
already recognize "*_riscv{,64}.go" as reserved files.

Change-Id: I042aab19c68751d82ea513e40f7b1d7e1ad924ea
Reviewed-on: https://go-review.googlesource.com/106256
Run-TryBot: Tobias Klauser <tobias.klauser@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>

23 files changed, 104 insertions, 0 deletions

diff --git a/src/runtime/internal/sys/zgoarch_386.go b/src/runtime/internal/sys/zgoarch_386.go
index 209b7749f6..c286d0df2b 100644
--- a/src/runtime/internal/sys/zgoarch_386.go
+++ b/src/runtime/internal/sys/zgoarch_386.go
@@ -22,6 +22,8 @@ const GoarchMips64le = 0
 const GoarchMips64p32 = 0
 const GoarchMips64p32le = 0
 const GoarchPpc = 0
+const GoarchRiscv = 0
+const GoarchRiscv64 = 0
 const GoarchS390 = 0
 const GoarchS390x = 0
 const GoarchSparc = 0
diff --git a/src/runtime/internal/sys/zgoarch_amd64.go b/src/runtime/internal/sys/zgoarch_amd64.go
index 950a196786..d21c1d7d2a 100644
--- a/src/runtime/internal/sys/zgoarch_amd64.go
+++ b/src/runtime/internal/sys/zgoarch_amd64.go
@@ -22,6 +22,8 @@ const GoarchMips64le = 0
 const GoarchMips64p32 = 0
 const GoarchMips64p32le = 0
 const GoarchPpc = 0
+const GoarchRiscv = 0
+const GoarchRiscv64 = 0
 const GoarchS390 = 0
 const GoarchS390x = 0
 const GoarchSparc = 0
diff --git a/src/runtime/internal/sys/zgoarch_amd64p32.go b/src/runtime/internal/sys/zgoarch_amd64p32.go
index 0d27361471..13dc2e756d 100644
--- a/src/runtime/internal/sys/zgoarch_amd64p32.go
+++ b/src/runtime/internal/sys/zgoarch_amd64p32.go
@@ -22,6 +22,8 @@ const GoarchMips64le = 0
 const GoarchMips64p32 = 0
 const GoarchMips64p32le = 0
 const GoarchPpc = 0
+const GoarchRiscv = 0
+const GoarchRiscv64 = 0
 const GoarchS390 = 0
 const GoarchS390x = 0
 const GoarchSparc = 0
diff --git a/src/runtime/internal/sys/zgoarch_arm.go b/src/runtime/internal/sys/zgoarch_arm.go
index 46f7fb880f..9085fb0ea8 100644
--- a/src/runtime/internal/sys/zgoarch_arm.go
+++ b/src/runtime/internal/sys/zgoarch_arm.go
@@ -22,6 +22,8 @@ const GoarchMips64le = 0
 const GoarchMips64p32 = 0
 const GoarchMips64p32le = 0
 const GoarchPpc = 0
+const GoarchRiscv = 0
+const GoarchRiscv64 = 0
 const GoarchS390 = 0
 const GoarchS390x = 0
 const GoarchSparc = 0
diff --git a/src/runtime/internal/sys/zgoarch_arm64.go b/src/runtime/internal/sys/zgoarch_arm64.go
index 67893f99cc..ed7ef2ebcb 100644
--- a/src/runtime/internal/sys/zgoarch_arm64.go
+++ b/src/runtime/internal/sys/zgoarch_arm64.go
@@ -22,6 +22,8 @@ const GoarchMips64le = 0
 const GoarchMips64p32 = 0
 const GoarchMips64p32le = 0
 const GoarchPpc = 0
+const GoarchRiscv = 0
+const GoarchRiscv64 = 0
 const GoarchS390 = 0
 const GoarchS390x = 0
 const GoarchSparc = 0
diff --git a/src/runtime/internal/sys/zgoarch_arm64be.go b/src/runtime/internal/sys/zgoarch_arm64be.go
index 0a9451f388..faf3111053 100644
--- a/src/runtime/internal/sys/zgoarch_arm64be.go
+++ b/src/runtime/internal/sys/zgoarch_arm64be.go
@@ -22,6 +22,8 @@ const GoarchMips64le = 0
 const GoarchMips64p32 = 0
 const GoarchMips64p32le = 0
 const GoarchPpc = 0
+const GoarchRiscv = 0
+const GoarchRiscv64 = 0
 const GoarchS390 = 0
 const GoarchS390x = 0
 const GoarchSparc = 0
diff --git a/src/runtime/internal/sys/zgoarch_armbe.go b/src/runtime/internal/sys/zgoarch_armbe.go
index 84cc570ec8..cb28301e0b 100644
--- a/src/runtime/internal/sys/zgoarch_armbe.go
+++ b/src/runtime/internal/sys/zgoarch_armbe.go
@@ -22,6 +22,8 @@ const GoarchMips64le = 0
 const GoarchMips64p32 = 0
 const GoarchMips64p32le = 0
 const GoarchPpc = 0
+const GoarchRiscv = 0
+const GoarchRiscv64 = 0
 const GoarchS390 = 0
 const GoarchS390x = 0
 const GoarchSparc = 0
diff --git a/src/runtime/internal/sys/zgoarch_mips.go b/src/runtime/internal/sys/zgoarch_mips.go
index 6ff4b24fcf..315dea1c84 100644
--- a/src/runtime/internal/sys/zgoarch_mips.go
+++ b/src/runtime/internal/sys/zgoarch_mips.go
@@ -22,6 +22,8 @@ const GoarchMips64le = 0
 const GoarchMips64p32 = 0
 const GoarchMips64p32le = 0
 const GoarchPpc = 0
+const GoarchRiscv = 0
+const GoarchRiscv64 = 0
 const GoarchS390 = 0
 const GoarchS390x = 0
 const GoarchSparc = 0
diff --git a/src/runtime/internal/sys/zgoarch_mips64.go b/src/runtime/internal/sys/zgoarch_mips64.go
index 55a8b860a5..5258cbfbe7 100644
--- a/src/runtime/internal/sys/zgoarch_mips64.go
+++ b/src/runtime/internal/sys/zgoarch_mips64.go
@@ -22,6 +22,8 @@ const GoarchMips64le = 0
 const GoarchMips64p32 = 0
 const GoarchMips64p32le = 0
 const GoarchPpc = 0
+const GoarchRiscv = 0
+const GoarchRiscv64 = 0
 const GoarchS390 = 0
 const GoarchS390x = 0
 const GoarchSparc = 0
diff --git a/src/runtime/internal/sys/zgoarch_mips64le.go b/src/runtime/internal/sys/zgoarch_mips64le.go
index ea0d94a39e..1721698518 100644
--- a/src/runtime/internal/sys/zgoarch_mips64le.go
+++ b/src/runtime/internal/sys/zgoarch_mips64le.go
@@ -22,6 +22,8 @@ const GoarchMips64le = 1
 const GoarchMips64p32 = 0
 const GoarchMips64p32le = 0
 const GoarchPpc = 0
+const GoarchRiscv = 0
+const GoarchRiscv64 = 0
 const GoarchS390 = 0
 const GoarchS390x = 0
 const GoarchSparc = 0
diff --git a/src/runtime/internal/sys/zgoarch_mips64p32.go b/src/runtime/internal/sys/zgoarch_mips64p32.go
index fe0b9f6bf1..44c4624da9 100644
--- a/src/runtime/internal/sys/zgoarch_mips64p32.go
+++ b/src/runtime/internal/sys/zgoarch_mips64p32.go
@@ -22,6 +22,8 @@ const GoarchMips64le = 0
 const GoarchMips64p32 = 1
 const GoarchMips64p32le = 0
 const GoarchPpc = 0
+const GoarchRiscv = 0
+const GoarchRiscv64 = 0
 const GoarchS390 = 0
 const GoarchS390x = 0
 const GoarchSparc = 0
diff --git a/src/runtime/internal/sys/zgoarch_mips64p32le.go b/src/runtime/internal/sys/zgoarch_mips64p32le.go
index 273e224973..eb63225430 100644
--- a/src/runtime/internal/sys/zgoarch_mips64p32le.go
+++ b/src/runtime/internal/sys/zgoarch_mips64p32le.go
@@ -22,6 +22,8 @@ const GoarchMips64le = 0
 const GoarchMips64p32 = 0
 const GoarchMips64p32le = 1
 const GoarchPpc = 0
+const GoarchRiscv = 0
+const GoarchRiscv64 = 0
 const GoarchS390 = 0
 const GoarchS390x = 0
 const GoarchSparc = 0
diff --git a/src/runtime/internal/sys/zgoarch_mipsle.go b/src/runtime/internal/sys/zgoarch_mipsle.go
index 802d1ecd4f..e0ebfbf038 100644
--- a/src/runtime/internal/sys/zgoarch_mipsle.go
+++ b/src/runtime/internal/sys/zgoarch_mipsle.go
@@ -22,6 +22,8 @@ const GoarchMips64le = 0
 const GoarchMips64p32 = 0
 const GoarchMips64p32le = 0
 const GoarchPpc = 0
+const GoarchRiscv = 0
+const GoarchRiscv64 = 0
 const GoarchS390 = 0
 const GoarchS390x = 0
 const GoarchSparc = 0
diff --git a/src/runtime/internal/sys/zgoarch_ppc.go b/src/runtime/internal/sys/zgoarch_ppc.go
index ca24130458..ef26aa3201 100644
--- a/src/runtime/internal/sys/zgoarch_ppc.go
+++ b/src/runtime/internal/sys/zgoarch_ppc.go
@@ -22,6 +22,8 @@ const GoarchMips64le = 0
 const GoarchMips64p32 = 0
 const GoarchMips64p32le = 0
 const GoarchPpc = 1
+const GoarchRiscv = 0
+const GoarchRiscv64 = 0
 const GoarchS390 = 0
 const GoarchS390x = 0
 const GoarchSparc = 0
diff --git a/src/runtime/internal/sys/zgoarch_ppc64.go b/src/runtime/internal/sys/zgoarch_ppc64.go
index e307121cd8..32c2d46d4c 100644
--- a/src/runtime/internal/sys/zgoarch_ppc64.go
+++ b/src/runtime/internal/sys/zgoarch_ppc64.go
@@ -22,6 +22,8 @@ const GoarchMips64le = 0
 const GoarchMips64p32 = 0
 const GoarchMips64p32le = 0
 const GoarchPpc = 0
+const GoarchRiscv = 0
+const GoarchRiscv64 = 0
 const GoarchS390 = 0
 const GoarchS390x = 0
 const GoarchSparc = 0
diff --git a/src/runtime/internal/sys/zgoarch_ppc64le.go b/src/runtime/internal/sys/zgoarch_ppc64le.go
index afc67c59a3..3a6e56763c 100644
--- a/src/runtime/internal/sys/zgoarch_ppc64le.go
+++ b/src/runtime/internal/sys/zgoarch_ppc64le.go
@@ -22,6 +22,8 @@ const GoarchMips64le = 0
 const GoarchMips64p32 = 0
 const GoarchMips64p32le = 0
 const GoarchPpc = 0
+const GoarchRiscv = 0
+const GoarchRiscv64 = 0
 const GoarchS390 = 0
 const GoarchS390x = 0
 const GoarchSparc = 0
diff --git a/src/runtime/internal/sys/zgoarch_riscv.go b/src/runtime/internal/sys/zgoarch_riscv.go
new file mode 100644
index 0000000000..d8f6b49093
--- /dev/null
+++ b/src/runtime/internal/sys/zgoarch_riscv.go
@@ -0,0 +1,31 @@
+// Code generated by gengoos.go using 'go generate'. DO NOT EDIT.
+
+// +build riscv
+
+package sys
+
+const GOARCH = `riscv`
+
+const Goarch386 = 0
+const GoarchAmd64 = 0
+const GoarchAmd64p32 = 0
+const GoarchArm = 0
+const GoarchArmbe = 0
+const GoarchArm64 = 0
+const GoarchArm64be = 0
+const GoarchPpc64 = 0
+const GoarchPpc64le = 0
+const GoarchMips = 0
+const GoarchMipsle = 0
+const GoarchMips64 = 0
+const GoarchMips64le = 0
+const GoarchMips64p32 = 0
+const GoarchMips64p32le = 0
+const GoarchPpc = 0
+const GoarchRiscv = 1
+const GoarchRiscv64 = 0
+const GoarchS390 = 0
+const GoarchS390x = 0
+const GoarchSparc = 0
+const GoarchSparc64 = 0
+const GoarchWasm = 0
diff --git a/src/runtime/internal/sys/zgoarch_riscv64.go b/src/runtime/internal/sys/zgoarch_riscv64.go
new file mode 100644
index 0000000000..0ba843b5ac
--- /dev/null
+++ b/src/runtime/internal/sys/zgoarch_riscv64.go
@@ -0,0 +1,31 @@
+// Code generated by gengoos.go using 'go generate'. DO NOT EDIT.
+
+// +build riscv64
+
+package sys
+
+const GOARCH = `riscv64`
+
+const Goarch386 = 0
+const GoarchAmd64 = 0
+const GoarchAmd64p32 = 0
+const GoarchArm = 0
+const GoarchArmbe = 0
+const GoarchArm64 = 0
+const GoarchArm64be = 0
+const GoarchPpc64 = 0
+const GoarchPpc64le = 0
+const GoarchMips = 0
+const GoarchMipsle = 0
+const GoarchMips64 = 0
+const GoarchMips64le = 0
+const GoarchMips64p32 = 0
+const GoarchMips64p32le = 0
+const GoarchPpc = 0
+const GoarchRiscv = 0
+const GoarchRiscv64 = 1
+const GoarchS390 = 0
+const GoarchS390x = 0
+const GoarchSparc = 0
+const GoarchSparc64 = 0
+const GoarchWasm = 0
diff --git a/src/runtime/internal/sys/zgoarch_s390.go b/src/runtime/internal/sys/zgoarch_s390.go
index 1f4a1c262b..20a1b234a6 100644
--- a/src/runtime/internal/sys/zgoarch_s390.go
+++ b/src/runtime/internal/sys/zgoarch_s390.go
@@ -22,6 +22,8 @@ const GoarchMips64le = 0
 const GoarchMips64p32 = 0
 const GoarchMips64p32le = 0
 const GoarchPpc = 0
+const GoarchRiscv = 0
+const GoarchRiscv64 = 0
 const GoarchS390 = 1
 const GoarchS390x = 0
 const GoarchSparc = 0
diff --git a/src/runtime/internal/sys/zgoarch_s390x.go b/src/runtime/internal/sys/zgoarch_s390x.go
index 13fdd2314f..ffdda0c827 100644
--- a/src/runtime/internal/sys/zgoarch_s390x.go
+++ b/src/runtime/internal/sys/zgoarch_s390x.go
@@ -22,6 +22,8 @@ const GoarchMips64le = 0
 const GoarchMips64p32 = 0
 const GoarchMips64p32le = 0
 const GoarchPpc = 0
+const GoarchRiscv = 0
+const GoarchRiscv64 = 0
 const GoarchS390 = 0
 const GoarchS390x = 1
 const GoarchSparc = 0
diff --git a/src/runtime/internal/sys/zgoarch_sparc.go b/src/runtime/internal/sys/zgoarch_sparc.go
index 825d013f93..b4949510d5 100644
--- a/src/runtime/internal/sys/zgoarch_sparc.go
+++ b/src/runtime/internal/sys/zgoarch_sparc.go
@@ -22,6 +22,8 @@ const GoarchMips64le = 0
 const GoarchMips64p32 = 0
 const GoarchMips64p32le = 0
 const GoarchPpc = 0
+const GoarchRiscv = 0
+const GoarchRiscv64 = 0
 const GoarchS390 = 0
 const GoarchS390x = 0
 const GoarchSparc = 1
diff --git a/src/runtime/internal/sys/zgoarch_sparc64.go b/src/runtime/internal/sys/zgoarch_sparc64.go
index 939c56f2d3..0f6df411ce 100644
--- a/src/runtime/internal/sys/zgoarch_sparc64.go
+++ b/src/runtime/internal/sys/zgoarch_sparc64.go
@@ -22,6 +22,8 @@ const GoarchMips64le = 0
 const GoarchMips64p32 = 0
 const GoarchMips64p32le = 0
 const GoarchPpc = 0
+const GoarchRiscv = 0
+const GoarchRiscv64 = 0
 const GoarchS390 = 0
 const GoarchS390x = 0
 const GoarchSparc = 0
diff --git a/src/runtime/internal/sys/zgoarch_wasm.go b/src/runtime/internal/sys/zgoarch_wasm.go
index 20a22414d0..e69afb0cb3 100644
--- a/src/runtime/internal/sys/zgoarch_wasm.go
+++ b/src/runtime/internal/sys/zgoarch_wasm.go
@@ -22,6 +22,8 @@ const GoarchMips64le = 0
 const GoarchMips64p32 = 0
 const GoarchMips64p32le = 0
 const GoarchPpc = 0
+const GoarchRiscv = 0
+const GoarchRiscv64 = 0
 const GoarchS390 = 0
 const GoarchS390x = 0
 const GoarchSparc = 0