lib: Consolidate platform configurations (used for crossSystem)

This is good for maintenance and education.

1 files changed, 130 insertions, 0 deletions

diff --git a/lib/systems/examples.nix b/lib/systems/examples.nix
new file mode 100644
index 00000000000..da9b95a6454
--- /dev/null
+++ b/lib/systems/examples.nix
@@ -0,0 +1,130 @@
+# These can be passed to nixpkgs as either the `localSystem` or
+# `crossSystem`. They are put here for user convenience, but also used by cross
+# tests and linux cross stdenv building, so handle with care!
+
+let platforms = import ./platforms.nix; in
+
+rec {
+  #
+  # Linux
+  #
+
+  sheevaplug = rec {
+    config = "armv5te-unknown-linux-gnueabi";
+    bigEndian = false;
+    arch = "armv5te";
+    float = "soft";
+    withTLS = true;
+    libc = "glibc";
+    platform = platforms.sheevaplug;
+    openssl.system = "linux-generic32";
+    inherit (platform) gcc;
+  };
+
+  raspberryPi = rec {
+    config = "armv6l-unknown-linux-gnueabihf";
+    bigEndian = false;
+    arch = "armv6l";
+    float = "hard";
+    fpu = "vfp";
+    withTLS = true;
+    libc = "glibc";
+    platform = platforms.raspberrypi;
+    openssl.system = "linux-generic32";
+    inherit (platform) gcc;
+  };
+
+  armv7l-hf-multiplatform = rec {
+    config = "arm-unknown-linux-gnueabihf";
+    bigEndian = false;
+    arch = "armv7-a";
+    float = "hard";
+    fpu = "vfpv3-d16";
+    withTLS = true;
+    libc = "glibc";
+    platform = platforms.armv7l-hf-multiplatform;
+    openssl.system = "linux-generic32";
+    inherit (platform) gcc;
+  };
+
+  aarch64-multiplatform = rec {
+    config = "aarch64-unknown-linux-gnu";
+    bigEndian = false;
+    arch = "aarch64";
+    withTLS = true;
+    libc = "glibc";
+    platform = platforms.aarch64-multiplatform;
+    inherit (platform) gcc;
+  };
+
+  scaleway-c1 = armv7l-hf-multiplatform // rec {
+    platform = platforms.scaleway-c1;
+    inherit (platform) gcc;
+    inherit (gcc) fpu;
+  };
+
+  pogoplug4 = rec {
+    arch = "armv5tel";
+    config = "armv5tel-softfloat-linux-gnueabi";
+    float = "soft";
+
+    platform = platforms.pogoplug4;
+
+    inherit (platform) gcc;
+    libc = "glibc";
+
+    withTLS = true;
+    openssl.system = "linux-generic32";
+  };
+
+  fuloongminipc = rec {
+    config = "mips64el-unknown-linux-gnu";
+    bigEndian = false;
+    arch = "mips";
+    float = "hard";
+    withTLS = true;
+    libc = "glibc";
+    platform = platforms.fuloong2f_n32;
+    openssl.system = "linux-generic32";
+    inherit (platform) gcc;
+  };
+
+  #
+  # Darwin
+  #
+
+  iphone64 = {
+    config = "aarch64-apple-darwin14";
+    arch = "arm64";
+    libc = "libsystem";
+    platform = {};
+  };
+
+  iphone32 = {
+    config = "arm-apple-darwin10";
+    arch = "armv7-a";
+    libc = "libsystem";
+    platform = {};
+  };
+
+  #
+  # Windows
+  #
+
+  # 32 bit mingw-w64
+  mingw32 = {
+    config = "i686-pc-mingw32";
+    arch = "x86"; # Irrelevant
+    libc = "msvcrt"; # This distinguishes the mingw (non posix) toolchain
+    platform = {};
+  };
+
+  # 64 bit mingw-w64
+  mingwW64 = {
+    # That's the triplet they use in the mingw-w64 docs.
+    config = "x86_64-pc-mingw32";
+    arch = "x86_64"; # Irrelevant
+    libc = "msvcrt"; # This distinguishes the mingw (non posix) toolchain
+    platform = {};
+  };
+}