nix: migrated

nix/itm-cargo-lock.patch

@@ -0,0 +1,703 @@
+diff --git a/Cargo.lock b/Cargo.lock
+index d18dbe7..c19483d 100644
+--- a/Cargo.lock
++++ b/Cargo.lock
+@@ -1,441 +1,450 @@
++# This file is automatically @generated by Cargo.
++# It is not intended for manual editing.
+ [[package]]
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++checksum = "d326610f408c7a4eb6f51c37c330e496b08506c9457c9d34287ecc38809fb060"
+ dependencies = [
+- "unicode-width 0.1.4 (registry+https://github.com/rust-lang/crates.io-index)",
++ "unicode-width",
+ ]
+ 
+ [[package]]
+ name = "thread_local"
+-version = "0.3.5"
++version = "0.3.6"
+ source = "registry+https://github.com/rust-lang/crates.io-index"
++checksum = "c6b53e329000edc2b34dbe8545fd20e55a333362d0a321909685a19bd28c3f1b"
+ dependencies = [
+- "lazy_static 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
+- "unreachable 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
++ "lazy_static",
+ ]
+ 
+ [[package]]
+ name = "time"
+-version = "0.1.38"
++version = "0.1.43"
+ source = "registry+https://github.com/rust-lang/crates.io-index"
++checksum = "ca8a50ef2360fbd1eeb0ecd46795a87a19024eb4b53c5dc916ca1fd95fe62438"
+ dependencies = [
+- "kernel32-sys 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
+- "libc 0.2.34 (registry+https://github.com/rust-lang/crates.io-index)",
+- "redox_syscall 0.1.32 (registry+https://github.com/rust-lang/crates.io-index)",
+- "winapi 0.2.8 (registry+https://github.com/rust-lang/crates.io-index)",
++ "libc",
++ "winapi",
+ ]
+ 
+ [[package]]
+-name = "unicode-width"
+-version = "0.1.4"
++name = "ucd-util"
++version = "0.1.8"
+ source = "registry+https://github.com/rust-lang/crates.io-index"
++checksum = "c85f514e095d348c279b1e5cd76795082cf15bd59b93207832abe0b1d8fed236"
+ 
+ [[package]]
+-name = "unicode-xid"
+-version = "0.0.4"
++name = "unicode-width"
++version = "0.1.7"
+ source = "registry+https://github.com/rust-lang/crates.io-index"
++checksum = "caaa9d531767d1ff2150b9332433f32a24622147e5ebb1f26409d5da67afd479"
+ 
+ [[package]]
+-name = "unreachable"
+-version = "1.0.0"
++name = "unicode-xid"
++version = "0.2.0"
+ source = "registry+https://github.com/rust-lang/crates.io-index"
+-dependencies = [
+- "void 1.0.2 (registry+https://github.com/rust-lang/crates.io-index)",
+-]
++checksum = "826e7639553986605ec5979c7dd957c7895e93eabed50ab2ffa7f6128a75097c"
+ 
+ [[package]]
+ name = "utf8-ranges"
+-version = "1.0.0"
++version = "1.0.4"
+ source = "registry+https://github.com/rust-lang/crates.io-index"
++checksum = "b4ae116fef2b7fea257ed6440d3cfcff7f190865f170cdad00bb6465bf18ecba"
+ 
+ [[package]]
+ name = "vec_map"
+-version = "0.8.0"
++version = "0.8.2"
+ source = "registry+https://github.com/rust-lang/crates.io-index"
++checksum = "f1bddf1187be692e79c5ffeab891132dfb0f236ed36a43c7ed39f1165ee20191"
+ 
+ [[package]]
+-name = "void"
+-version = "1.0.2"
++name = "winapi"
++version = "0.3.8"
+ source = "registry+https://github.com/rust-lang/crates.io-index"
++checksum = "8093091eeb260906a183e6ae1abdba2ef5ef2257a21801128899c3fc699229c6"
++dependencies = [
++ "winapi-i686-pc-windows-gnu",
++ "winapi-x86_64-pc-windows-gnu",
++]
+ 
+ [[package]]
+-name = "winapi"
+-version = "0.2.8"
++name = "winapi-i686-pc-windows-gnu"
++version = "0.4.0"
+ source = "registry+https://github.com/rust-lang/crates.io-index"
++checksum = "ac3b87c63620426dd9b991e5ce0329eff545bccbbb34f3be09ff6fb6ab51b7b6"
+ 
+ [[package]]
+-name = "winapi-build"
+-version = "0.1.1"
++name = "winapi-x86_64-pc-windows-gnu"
++version = "0.4.0"
+ source = "registry+https://github.com/rust-lang/crates.io-index"
+-
+-[metadata]
+-"checksum aho-corasick 0.6.4 (registry+https://github.com/rust-lang/crates.io-index)" = "d6531d44de723825aa81398a6415283229725a00fa30713812ab9323faa82fc4"
+-"checksum ansi_term 0.10.2 (registry+https://github.com/rust-lang/crates.io-index)" = "6b3568b48b7cefa6b8ce125f9bb4989e52fbcc29ebea88df04cc7c5f12f70455"
+-"checksum atty 0.2.3 (registry+https://github.com/rust-lang/crates.io-index)" = "21e50800ec991574876040fff8ee46b136a53e985286fbe6a3bdfe6421b78860"
+-"checksum backtrace 0.3.4 (registry+https://github.com/rust-lang/crates.io-index)" = "8709cc7ec06f6f0ae6c2c7e12f6ed41540781f72b488d83734978295ceae182e"
+-"checksum backtrace-sys 0.1.16 (registry+https://github.com/rust-lang/crates.io-index)" = "44585761d6161b0f57afc49482ab6bd067e4edef48c12a152c237eb0203f7661"
+-"checksum bitflags 0.7.0 (registry+https://github.com/rust-lang/crates.io-index)" = "aad18937a628ec6abcd26d1489012cc0e18c21798210f491af69ded9b881106d"
+-"checksum bitflags 1.0.1 (registry+https://github.com/rust-lang/crates.io-index)" = "b3c30d3802dfb7281680d6285f2ccdaa8c2d8fee41f93805dba5c4cf50dc23cf"
+-"checksum cc 1.0.3 (registry+https://github.com/rust-lang/crates.io-index)" = "a9b13a57efd6b30ecd6598ebdb302cca617930b5470647570468a65d12ef9719"
+-"checksum cfg-if 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)" = "d4c819a1287eb618df47cc647173c5c4c66ba19d888a6e50d605672aed3140de"
+-"checksum chrono 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)" = "7c20ebe0b2b08b0aeddba49c609fe7957ba2e33449882cb186a180bc60682fa9"
+-"checksum clap 2.29.0 (registry+https://github.com/rust-lang/crates.io-index)" = "110d43e343eb29f4f51c1db31beb879d546db27998577e5715270a54bcf41d3f"
+-"checksum dbghelp-sys 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)" = "97590ba53bcb8ac28279161ca943a924d1fd4a8fb3fa63302591647c4fc5b850"
+-"checksum env_logger 0.4.3 (registry+https://github.com/rust-lang/crates.io-index)" = "3ddf21e73e016298f5cb37d6ef8e8da8e39f91f9ec8b0df44b7deb16a9f8cd5b"
+-"checksum failure 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)" = "934799b6c1de475a012a02dab0ace1ace43789ee4b99bcfbf1a2e3e8ced5de82"
+-"checksum failure_derive 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)" = "c7cdda555bb90c9bb67a3b670a0f42de8e73f5981524123ad8578aafec8ddb8b"
+-"checksum fuchsia-zircon 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)" = "f6c0581a4e363262e52b87f59ee2afe3415361c6ec35e665924eb08afe8ff159"
+-"checksum fuchsia-zircon-sys 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)" = "43f3795b4bae048dc6123a6b972cadde2e676f9ded08aef6bb77f5f157684a82"
+-"checksum kernel32-sys 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)" = "7507624b29483431c0ba2d82aece8ca6cdba9382bff4ddd0f7490560c056098d"
+-"checksum lazy_static 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)" = "c8f31047daa365f19be14b47c29df4f7c3b581832407daabe6ae77397619237d"
+-"checksum libc 0.2.34 (registry+https://github.com/rust-lang/crates.io-index)" = "36fbc8a8929c632868295d0178dd8f63fc423fd7537ad0738372bd010b3ac9b0"
+-"checksum log 0.3.8 (registry+https://github.com/rust-lang/crates.io-index)" = "880f77541efa6e5cc74e76910c9884d9859683118839d6a1dc3b11e63512565b"
+-"checksum memchr 2.0.1 (registry+https://github.com/rust-lang/crates.io-index)" = "796fba70e76612589ed2ce7f45282f5af869e0fdd7cc6199fa1aa1f1d591ba9d"
+-"checksum num 0.1.41 (registry+https://github.com/rust-lang/crates.io-index)" = "cc4083e14b542ea3eb9b5f33ff48bd373a92d78687e74f4cc0a30caeb754f0ca"
+-"checksum num-integer 0.1.35 (registry+https://github.com/rust-lang/crates.io-index)" = "d1452e8b06e448a07f0e6ebb0bb1d92b8890eea63288c0b627331d53514d0fba"
+-"checksum num-iter 0.1.34 (registry+https://github.com/rust-lang/crates.io-index)" = "7485fcc84f85b4ecd0ea527b14189281cf27d60e583ae65ebc9c088b13dffe01"
+-"checksum num-traits 0.1.41 (registry+https://github.com/rust-lang/crates.io-index)" = "cacfcab5eb48250ee7d0c7896b51a2c5eec99c1feea5f32025635f5ae4b00070"
+-"checksum quote 0.3.15 (registry+https://github.com/rust-lang/crates.io-index)" = "7a6e920b65c65f10b2ae65c831a81a073a89edd28c7cce89475bff467ab4167a"
+-"checksum rand 0.3.18 (registry+https://github.com/rust-lang/crates.io-index)" = "6475140dfd8655aeb72e1fd4b7a1cc1c202be65d71669476e392fe62532b9edd"
+-"checksum redox_syscall 0.1.32 (registry+https://github.com/rust-lang/crates.io-index)" = "ab105df655884ede59d45b7070c8a65002d921461ee813a024558ca16030eea0"
+-"checksum redox_termios 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)" = "7e891cfe48e9100a70a3b6eb652fef28920c117d366339687bd5576160db0f76"
+-"checksum regex 0.2.3 (registry+https://github.com/rust-lang/crates.io-index)" = "ac6ab4e9218ade5b423358bbd2567d1617418403c7a512603630181813316322"
+-"checksum regex-syntax 0.4.1 (registry+https://github.com/rust-lang/crates.io-index)" = "ad890a5eef7953f55427c50575c680c42841653abd2b028b68cd223d157f62db"
+-"checksum rustc-demangle 0.1.5 (registry+https://github.com/rust-lang/crates.io-index)" = "aee45432acc62f7b9a108cc054142dac51f979e69e71ddce7d6fc7adf29e817e"
+-"checksum strsim 0.6.0 (registry+https://github.com/rust-lang/crates.io-index)" = "b4d15c810519a91cf877e7e36e63fe068815c678181439f2f29e2562147c3694"
+-"checksum syn 0.11.11 (registry+https://github.com/rust-lang/crates.io-index)" = "d3b891b9015c88c576343b9b3e41c2c11a51c219ef067b264bd9c8aa9b441dad"
+-"checksum synom 0.11.3 (registry+https://github.com/rust-lang/crates.io-index)" = "a393066ed9010ebaed60b9eafa373d4b1baac186dd7e008555b0f702b51945b6"
+-"checksum synstructure 0.6.1 (registry+https://github.com/rust-lang/crates.io-index)" = "3a761d12e6d8dcb4dcf952a7a89b475e3a9d69e4a69307e01a470977642914bd"
+-"checksum tempdir 0.3.5 (registry+https://github.com/rust-lang/crates.io-index)" = "87974a6f5c1dfb344d733055601650059a3363de2a6104819293baff662132d6"
+-"checksum termion 1.5.1 (registry+https://github.com/rust-lang/crates.io-index)" = "689a3bdfaab439fd92bc87df5c4c78417d3cbe537487274e9b0b2dce76e92096"
+-"checksum textwrap 0.9.0 (registry+https://github.com/rust-lang/crates.io-index)" = "c0b59b6b4b44d867f1370ef1bd91bfb262bf07bf0ae65c202ea2fbc16153b693"
+-"checksum thread_local 0.3.5 (registry+https://github.com/rust-lang/crates.io-index)" = "279ef31c19ededf577bfd12dfae728040a21f635b06a24cd670ff510edd38963"
+-"checksum time 0.1.38 (registry+https://github.com/rust-lang/crates.io-index)" = "d5d788d3aa77bc0ef3e9621256885555368b47bd495c13dd2e7413c89f845520"
+-"checksum unicode-width 0.1.4 (registry+https://github.com/rust-lang/crates.io-index)" = "bf3a113775714a22dcb774d8ea3655c53a32debae63a063acc00a91cc586245f"
+-"checksum unicode-xid 0.0.4 (registry+https://github.com/rust-lang/crates.io-index)" = "8c1f860d7d29cf02cb2f3f359fd35991af3d30bac52c57d265a3c461074cb4dc"
+-"checksum unreachable 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)" = "382810877fe448991dfc7f0dd6e3ae5d58088fd0ea5e35189655f84e6814fa56"
+-"checksum utf8-ranges 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)" = "662fab6525a98beff2921d7f61a39e7d59e0b425ebc7d0d9e66d316e55124122"
+-"checksum vec_map 0.8.0 (registry+https://github.com/rust-lang/crates.io-index)" = "887b5b631c2ad01628bbbaa7dd4c869f80d3186688f8d0b6f58774fbe324988c"
+-"checksum void 1.0.2 (registry+https://github.com/rust-lang/crates.io-index)" = "6a02e4885ed3bc0f2de90ea6dd45ebcbb66dacffe03547fadbb0eeae2770887d"
+-"checksum winapi 0.2.8 (registry+https://github.com/rust-lang/crates.io-index)" = "167dc9d6949a9b857f3451275e911c3f44255842c1f7a76f33c55103a909087a"
+-"checksum winapi-build 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)" = "2d315eee3b34aca4797b2da6b13ed88266e6d612562a0c46390af8299fc699bc"
++checksum = "712e227841d057c1ee1cd2fb22fa7e5a5461ae8e48fa2ca79ec42cfc1931183f"
+diff --git a/src/bin/itmdump.rs b/src/bin/itmdump.rs
+index 455623a..a002c83 100644
+--- a/src/bin/itmdump.rs
++++ b/src/bin/itmdump.rs
+@@ -128,13 +128,13 @@ fn run() -> Result<(), failure::Error> {
+     // Unreachable.
+ }
+ 
+-fn open_read(matches: &ArgMatches) -> Result<Box<io::Read + 'static>, io::Error> {
++fn open_read(matches: &ArgMatches) -> Result<Box<dyn io::Read + 'static>, io::Error> {
+     let path = matches.value_of("file");
+     Ok(match path {
+         Some(path) => {
+             let f = File::open(path)?;
+-            Box::new(f) as Box<io::Read + 'static>
++            Box::new(f) as Box<dyn io::Read + 'static>
+         }
+-        None => Box::new(io::stdin()) as Box<io::Read + 'static>,
++        None => Box::new(io::stdin()) as Box<dyn io::Read + 'static>,
+     })
+ }

nix/itm.nix

@@ -0,0 +1,21 @@
+{ stdenv, fetchFromGitHub, rustPlatform, pkgconfig }:
+
+rustPlatform.buildRustPackage rec {
+  version = "0.3.1";
+  pname = "itm";
+
+  src = fetchFromGitHub {
+    owner = "rust-embedded";
+    repo = "itm";
+    rev = "v${version}";
+    sha256 = "15pa0ydm19vz8p3wairpx3vqzc55rp4lgki143ybgw44sgf8hraj";
+  };
+
+  cargoPatches = [ ./itm-cargo-lock.patch ];
+
+  cargoSha256 = "1lgv8nhzbzfw9cl4rhj46a86h9jygz0ih3j4zw5nd1346xgmz7b8";
+
+  nativeBuildInputs = [ pkgconfig ];
+
+  doCheck = false;
+}

nix/nmigen-boards.nix

@@ -0,0 +1,23 @@
+{ stdenv, fetchgit, python3Packages, nmigen, git }:
+
+python3Packages.buildPythonPackage {
+	name = "nmigen-boards";
+	version = "2019-10-13";
+
+	src = fetchgit {
+		url = "https://github.com/m-labs/nmigen-boards";
+		rev = "bc074915d6c67a33447d4730b720b37e3ea4bb3f";
+		sha256 = "1qp32783p0bg6fxfj0wd7fd3if8az7w1r521wcbznxakdrqhrqjd";
+		leaveDotGit = true;
+	};
+
+	nativeBuildInputs = [ python3Packages.setuptools_scm git ];
+	propagatedBuildInputs = [ nmigen ];
+
+	meta = with stdenv.lib; {
+		description = "Board and connector definition files for nMigen";
+		homepage    = "https://m-labs.hk";
+		license     = licenses.bsd2;
+		maintainers = [ maintainers.sb0 ];
+	};
+}

nix/nmigen.nix

@@ -0,0 +1,24 @@
+{ stdenv, python3Packages, yosys, symbiyosys, yices, git }:
+
+python3Packages.buildPythonPackage rec {
+	pname = "nmigen";
+	version = "0.1";
+
+	src = python3Packages.fetchPypi {
+		inherit pname version;
+		sha256 = "1fhichp1flyj4f6n8dmmsj011yjibdkdikl45v7izcqfycmaqm8v";
+	};
+
+	checkInputs = [ yosys symbiyosys yices ];
+	checkPhase = "python -m unittest discover nmigen.test -v";
+
+	nativeBuildInputs = [ python3Packages.setuptools_scm git ];
+	propagatedBuildInputs = [ python3Packages.bitarray python3Packages.pyvcd python3Packages.jinja2 python3Packages.setuptools ];
+
+ 	 meta = with stdenv.lib; {
+ 		description = "A refreshed Python toolbox for building complex digital hardware";
+		homepage    = "https://m-labs.hk";
+		license     = licenses.bsd2;
+		maintainers = [ maintainers.sb0 ];
+	};
+}

nix/openocd.nix

@@ -0,0 +1,66 @@
+{ stdenv, lib, fetchgit, autoreconfHook,fetchpatch, libftdi1, libusb1, pkgconfig, hidapi }:
+
+stdenv.mkDerivation rec {
+  pname = "openocd";
+  version = "0.10.0-dev";
+
+  src = fetchgit {
+    url = "https://git.code.sf.net/p/openocd/code";
+    rev = "7c88e76a76588fa0e3ab645adfc46e8baff6a3e4";
+    sha256 = "04ia0rjyil5353dw4mmrmwpald6lqqliaypadp467421dvp0xv97";
+    fetchSubmodules = true;
+  };
+
+  nativeBuildInputs = [ pkgconfig autoreconfHook];
+  buildInputs = [ libftdi1 libusb1 hidapi];
+
+  configureFlags = [
+    "--enable-jtag_vpi"
+    "--enable-usb_blaster_libftdi"
+    (lib.enableFeature (! stdenv.isDarwin) "amtjtagaccel")
+    (lib.enableFeature (! stdenv.isDarwin) "gw16012")
+    "--enable-presto_libftdi"
+    "--enable-openjtag_ftdi"
+    (lib.enableFeature (! stdenv.isDarwin) "oocd_trace")
+    "--enable-buspirate"
+    (lib.enableFeature stdenv.isLinux "sysfsgpio")
+    "--enable-remote-bitbang"
+  ];
+
+  NIX_CFLAGS_COMPILE = toString (lib.optionals stdenv.cc.isGNU [
+    "-Wno-implicit-fallthrough"
+    "-Wno-format-truncation"
+    "-Wno-format-overflow"
+    "-Wno-error=tautological-compare"
+    "-Wno-error=array-bounds"
+    "-Wno-error=cpp"
+  ]);
+
+  postInstall = lib.optionalString stdenv.isLinux ''
+    mkdir -p "$out/etc/udev/rules.d"
+    rules="$out/share/openocd/contrib/60-openocd.rules"
+    if [ ! -f "$rules" ]; then
+        echo "$rules is missing, must update the Nix file."
+        exit 1
+    fi
+    ln -s "$rules" "$out/etc/udev/rules.d/"
+  '';
+
+  meta = with lib; {
+    description = "Free and Open On-Chip Debugging, In-System Programming and Boundary-Scan Testing";
+    longDescription = ''
+      OpenOCD provides on-chip programming and debugging support with a layered
+      architecture of JTAG interface and TAP support, debug target support
+      (e.g. ARM, MIPS), and flash chip drivers (e.g. CFI, NAND, etc.).  Several
+      network interfaces are available for interactiving with OpenOCD: HTTP,
+      telnet, TCL, and GDB.  The GDB server enables OpenOCD to function as a
+      "remote target" for source-level debugging of embedded systems using the
+      GNU GDB program.
+    '';
+    homepage = "http://openocd.sourceforge.net/";
+    license = licenses.gpl2Plus;
+    maintainers = with maintainers; [ bjornfor ];
+    platforms = platforms.unix;
+  };
+}
+

nix/rustPlatform.nix

@@ -0,0 +1,24 @@
+{ recurseIntoAttrs, stdenv, lib,
+  makeRustPlatform, defaultCrateOverrides, 
+  fetchurl, patchelf,
+  rustManifest ? ./channel-rust-nightly.toml
+}:
+
+let
+  targets = [
+    "thumbv7em-none-eabihf"   # For ARM Cortex-M4 or M7 w/ FPU support
+  ];
+  rustChannel =
+    lib.rustLib.fromManifestFile rustManifest {
+      inherit stdenv fetchurl patchelf;
+    };
+  rust =
+    rustChannel.rust.override {
+      inherit targets;
+    };
+
+in
+makeRustPlatform {
+  rustc = rust;
+  cargo = rust;
+}

shell.nix

@@ -0,0 +1,122 @@
+let
+	mozillaOverlay = import (builtins.fetchTarball https://github.com/mozilla/nixpkgs-mozilla/archive/master.tar.gz);
+	pkgs = import <nixpkgs> {overlays = [mozillaOverlay];};
+in with pkgs;
+let
+	# TODO: Dump migen when nmigen fully succeed
+	migen = python3Packages.buildPythonPackage rec {
+    	name = "migen";
+
+    	src = fetchFromGitHub {
+      		owner = "m-labs";
+      		repo = "migen";
+   			rev = "12e7ba6a4c19ee65ff9e042747220972aecc05ac";
+   			sha256 = "0z76jfcvm7k6iqkmpdck3mw06hlg0kqvbpr047rgyvaw5im98wj5";
+   		};
+
+   		propagatedBuildInputs = with python3Packages; [ colorama ];
+
+   		meta = with stdenv.lib; {
+   			description = "A Python toolbox for building complex digital hardware";
+   			homepage    = "https://m-labs.hk/migen";
+   			license     = licenses.bsd2;
+   			platforms   = platforms.unix;
+   		};
+  	};
+	nmigen = callPackage ./nix/nmigen.nix {};
+	nmigen-boards = callPackage ./nix/nmigen-boards.nix { inherit nmigen; };
+	openocd = callPackage ./nix/openocd.nix {};
+	rustPlatform = callPackage ./nix/rustPlatform.nix {};
+	itm = callPackage ./nix/itm.nix {inherit rustPlatform;};
+
+	runOpenOcd = writeShellScriptBin "run-openocd" ''
+		openocd \
+		-f board/st_nucleo_h743zi.cfg \
+		-c init &
+		sleep 1
+	'';
+
+	runOpenOcdBlock = writeShellScriptBin "run-openocd-block" ''
+		openocd -f board/st_nucleo_h743zi.cfg
+	'';
+
+	setGDBConfigFile = writeShellScriptBin "set-gdb-config-file" ''
+		if [[ $1 == "" ]]
+		then
+			sed -i "2s/.*/runner = \"gdb -q -x gdb_config\/openocd.gdb\"/" .cargo/config
+			echo "GDB config file: openocd.gdb"
+		else
+			sed -i "2s/.*/runner = \"gdb -q -x gdb_config\/$1.gdb\"/" .cargo/config
+			echo "GDB config file: $1.gdb"
+		fi
+	'';
+
+	runEthernetServer = writeShellScriptBin "run-ethernet-server" ''
+		set-gdb-config-file && cargo run --example ethernet
+	'';
+
+	editNMigenScript = writeShellScriptBin "edit-nmigen-script" ''
+		nano -m nmigen/fpga_config.py
+	'';
+
+	compileNMigenScript = writeShellScriptBin "compile-nmigen-script" ''
+		python3 nmigen/fpga_config.py
+		echo "Compiled fpga_config.py to top.bin"
+	'';
+
+	# No longer uses generated rust array to store bitstream
+
+#	readyBitstream = writeShellScriptBin "ready-bitstream" ''
+#		python3 nmigen/loader.py
+#	'';
+
+	flashFPGAConfig = writeShellScriptBin "flash-fpga-config" ''
+		set-gdb-config-file "fpga_config" && cargo run --example fpga_config
+	'';
+
+	configureFPGA = writeShellScriptBin "configure-fpga" ''
+		nc -zv localhost 3333			\
+		&& compile-nmigen-script 		\
+		&& flash-fpga-config 			\
+		|| echo "Please run OpenOcd first."
+	'';
+
+	verifyFPGAConfig = writeShellScriptBin "verify-fpga-config" ''
+		gdb -x gdb_config/fpga_verify.gdb
+		diff build/top.bin mem.bin
+		rm mem.bin
+	'';
+
+	resetFlash = writeShellScriptBin "reset-flash" ''
+		gdb -batch -x gdb_config/reset.gdb
+		echo "Reset is complete, please reset the openocd server."
+	'';
+
+in
+	stdenv.mkDerivation {
+		name = "nix-shell";		
+		buildInputs = with rustPlatform.rust; [
+			(pkgs.python3.withPackages(ps: [migen nmigen nmigen-boards]))
+			pkgs.python3Packages.pandas
+			pkgs.yosys
+			pkgs.nextpnr
+			pkgs.icestorm
+			pkgs.gdb
+			openocd
+			rustc
+			cargo
+			itm
+			runOpenOcd
+			runOpenOcdBlock
+			setGDBConfigFile
+			runEthernetServer
+			editNMigenScript
+			compileNMigenScript
+			flashFPGAConfig
+			configureFPGA
+			verifyFPGAConfig
+			resetFlash
+		];
+
+		RUST_BACKTRACE = 1;
+	}