From e288febee0809db7c594ceb42e655dd5d43a6369 Mon Sep 17 00:00:00 2001
From: Shea Levy <shea@shealevy.com>
Date: Sun, 18 Feb 2018 00:09:25 -0500
Subject: [PATCH] Add riscv{32,64} crossSystems.

---
 lib/systems/examples.nix  | 8 ++++++++
 lib/systems/platforms.nix | 6 ++++++
 2 files changed, 14 insertions(+)

diff --git a/lib/systems/examples.nix b/lib/systems/examples.nix
index f5562e28a09d..bd68ee9460e7 100644
--- a/lib/systems/examples.nix
+++ b/lib/systems/examples.nix
@@ -68,6 +68,14 @@ rec {
   musl64 = { config = "x86_64-unknown-linux-musl"; };
   musl32  = { config = "i686-unknown-linux-musl"; };
 
+  riscv = bits: {
+    config = "riscv${bits}-unknown-linux-gnu";
+    platform = platforms.riscv-multiplatform bits;
+  };
+  riscv64 = riscv "64";
+  riscv32 = riscv "32";
+
+
   #
   # Darwin
   #
diff --git a/lib/systems/platforms.nix b/lib/systems/platforms.nix
index 58a7afa7679d..3106c05dd5d2 100644
--- a/lib/systems/platforms.nix
+++ b/lib/systems/platforms.nix
@@ -541,6 +541,12 @@ rec {
     };
   };
 
+  riscv-multiplatform = bits: {
+    name = "riscv-multiplatform";
+    kernelArch = "riscv";
+    bfdEmulation = "elf${bits}lriscv";
+  };
+
   selectBySystem = system: {
       "i686-linux" = pc32;
       "x86_64-linux" = pc64;