mirror of
https://github.com/NixOS/nixpkgs.git
synced 2024-11-24 14:41:17 +00:00
20a4bbe23b
v8 can run any wasm bytecode
125 lines
4.5 KiB
Nix
125 lines
4.5 KiB
Nix
{ lib }:
|
|
let inherit (lib.attrsets) mapAttrs; in
|
|
|
|
rec {
|
|
doubles = import ./doubles.nix { inherit lib; };
|
|
forMeta = import ./for-meta.nix { inherit lib; };
|
|
parse = import ./parse.nix { inherit lib; };
|
|
inspect = import ./inspect.nix { inherit lib; };
|
|
platforms = import ./platforms.nix { inherit lib; };
|
|
examples = import ./examples.nix { inherit lib; };
|
|
|
|
# Elaborate a `localSystem` or `crossSystem` so that it contains everything
|
|
# necessary.
|
|
#
|
|
# `parsed` is inferred from args, both because there are two options with one
|
|
# clearly prefered, and to prevent cycles. A simpler fixed point where the RHS
|
|
# always just used `final.*` would fail on both counts.
|
|
elaborate = args: let
|
|
final = {
|
|
# Prefer to parse `config` as it is strictly more informative.
|
|
parsed = parse.mkSystemFromString (if args ? config then args.config else args.system);
|
|
# Either of these can be losslessly-extracted from `parsed` iff parsing succeeds.
|
|
system = parse.doubleFromSystem final.parsed;
|
|
config = parse.tripleFromSystem final.parsed;
|
|
# Just a guess, based on `system`
|
|
platform = platforms.selectBySystem final.system;
|
|
# Determine whether we are compatible with the provided CPU
|
|
isCompatible = platform: parse.isCompatible final.parsed.cpu platform.parsed.cpu;
|
|
# Derived meta-data
|
|
libc =
|
|
/**/ if final.isDarwin then "libSystem"
|
|
else if final.isMinGW then "msvcrt"
|
|
else if final.isMusl then "musl"
|
|
else if final.isUClibc then "uclibc"
|
|
else if final.isAndroid then "bionic"
|
|
else if final.isLinux /* default */ then "glibc"
|
|
else if final.isAvr then "avrlibc"
|
|
# TODO(@Ericson2314) think more about other operating systems
|
|
else "native/impure";
|
|
extensions = {
|
|
sharedLibrary =
|
|
/**/ if final.isDarwin then ".dylib"
|
|
else if final.isWindows then ".dll"
|
|
else ".so";
|
|
executable =
|
|
/**/ if final.isWindows then ".exe"
|
|
else "";
|
|
};
|
|
# Misc boolean options
|
|
useAndroidPrebuilt = false;
|
|
useiOSPrebuilt = false;
|
|
|
|
# Output from uname
|
|
uname = {
|
|
# uname -s
|
|
system = {
|
|
"linux" = "Linux";
|
|
"windows" = "Windows";
|
|
"darwin" = "Darwin";
|
|
"netbsd" = "NetBSD";
|
|
"freebsd" = "FreeBSD";
|
|
"openbsd" = "OpenBSD";
|
|
"wasm" = "Wasm";
|
|
}.${final.parsed.kernel.name} or null;
|
|
|
|
# uname -p
|
|
processor = final.parsed.cpu.name;
|
|
|
|
# uname -r
|
|
release = null;
|
|
};
|
|
|
|
qemuArch =
|
|
if final.isArm then "arm"
|
|
else if final.isx86_64 then "x86_64"
|
|
else if final.isx86 then "i386"
|
|
else {
|
|
"powerpc" = "ppc";
|
|
"powerpc64" = "ppc64";
|
|
"powerpc64le" = "ppc64";
|
|
"mips64" = "mips";
|
|
"mipsel64" = "mipsel";
|
|
}.${final.parsed.cpu.name} or final.parsed.cpu.name;
|
|
|
|
emulator = pkgs: let
|
|
qemu-user = pkgs.qemu.override {
|
|
smartcardSupport = false;
|
|
spiceSupport = false;
|
|
openGLSupport = false;
|
|
virglSupport = false;
|
|
vncSupport = false;
|
|
gtkSupport = false;
|
|
sdlSupport = false;
|
|
pulseSupport = false;
|
|
smbdSupport = false;
|
|
seccompSupport = false;
|
|
hostCpuTargets = ["${final.qemuArch}-linux-user"];
|
|
};
|
|
wine-name = "wine${toString final.parsed.cpu.bits}";
|
|
wine = (pkgs.winePackagesFor wine-name).minimal;
|
|
in
|
|
if final.parsed.kernel.name == pkgs.stdenv.hostPlatform.parsed.kernel.name &&
|
|
pkgs.stdenv.hostPlatform.isCompatible final
|
|
then pkgs.runtimeShell
|
|
else if final.isWindows
|
|
then "${wine}/bin/${wine-name}"
|
|
else if final.isLinux && pkgs.stdenv.hostPlatform.isLinux
|
|
then "${qemu-user}/bin/qemu-${final.qemuArch}"
|
|
else if final.isWasm
|
|
then "${pkgs.v8}/bin/d8"
|
|
else throw "Don't know how to run ${final.config} executables.";
|
|
|
|
} // mapAttrs (n: v: v final.parsed) inspect.predicates
|
|
// args;
|
|
in assert final.useAndroidPrebuilt -> final.isAndroid;
|
|
assert lib.foldl
|
|
(pass: { assertion, message }:
|
|
if assertion final
|
|
then pass
|
|
else throw message)
|
|
true
|
|
(final.parsed.abi.assertions or []);
|
|
final;
|
|
}
|