From 7cc62144b2946796568e0125d1b56839c0b49226 Mon Sep 17 00:00:00 2001
From: John Q Crosscompiler <john.q.crosscompiler@example.com>
Date: Thu, 26 Jul 2018 09:33:36 -0400
Subject: [PATCH] systems: Allow detection of powerpc and sparc

---
 lib/systems/inspect.nix                         | 1 +
 lib/systems/parse.nix                           | 3 +++
 pkgs/build-support/bintools-wrapper/default.nix | 2 ++
 3 files changed, 6 insertions(+)

diff --git a/lib/systems/inspect.nix b/lib/systems/inspect.nix
index c0c283469fe..0c70f2a7cd5 100644
--- a/lib/systems/inspect.nix
+++ b/lib/systems/inspect.nix
@@ -16,6 +16,7 @@ rec {
     isAarch64      = { cpu = { family = "arm"; bits = 64; }; };
     isMips         = { cpu = { family = "mips"; }; };
     isRiscV        = { cpu = { family = "riscv"; }; };
+    isSparc        = { cpu = { family = "sparc"; }; };
     isWasm         = { cpu = { family = "wasm"; }; };
 
     is32bit        = { cpu = { bits = 32; }; };
diff --git a/lib/systems/parse.nix b/lib/systems/parse.nix
index d79947ad3de..47841a9eba5 100644
--- a/lib/systems/parse.nix
+++ b/lib/systems/parse.nix
@@ -93,6 +93,9 @@ rec {
     riscv32  = { bits = 32; significantByte = littleEndian; family = "riscv"; };
     riscv64  = { bits = 64; significantByte = littleEndian; family = "riscv"; };
 
+    sparc    = { bits = 32; significantByte = bigEndian;    family = "sparc"; };
+    sparc64  = { bits = 64; significantByte = bigEndian;    family = "sparc"; };
+
     wasm32   = { bits = 32; significantByte = littleEndian; family = "wasm"; };
     wasm64   = { bits = 64; significantByte = littleEndian; family = "wasm"; };
   };
diff --git a/pkgs/build-support/bintools-wrapper/default.nix b/pkgs/build-support/bintools-wrapper/default.nix
index 2739537c25d..91f9e7c71e3 100644
--- a/pkgs/build-support/bintools-wrapper/default.nix
+++ b/pkgs/build-support/bintools-wrapper/default.nix
@@ -185,6 +185,8 @@ stdenv.mkDerivation {
           "mips64"   = "btsmip";
           "mips64el" = "ltsmip";
         }.${targetPlatform.parsed.cpu.name}
+      else if targetPlatform.isPowerPC then "powerpc"
+      else if targetPlatform.isSparc then "sparc"
       else throw "unknown emulation for platform: " + targetPlatform.config;
     in targetPlatform.platform.bfdEmulation or (fmt + sep + arch);