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const std = @import("std");
const fs = std.fs;
const io = std.io;
const mem = std.mem;
const meta = std.meta;
const Allocator = std.mem.Allocator;
const Target = std.Target;
const target = @import("target.zig");
const assert = std.debug.assert;
const glibc = @import("glibc.zig");
const introspect = @import("introspect.zig");
const fatal = @import("main.zig").fatal;
pub fn cmdTargets(
allocator: Allocator,
args: []const []const u8,
/// Output stream
stdout: anytype,
native_target: Target,
) !void {
_ = args;
var zig_lib_directory = introspect.findZigLibDir(allocator) catch |err| {
fatal("unable to find zig installation directory: {s}\n", .{@errorName(err)});
};
defer zig_lib_directory.handle.close();
defer allocator.free(zig_lib_directory.path.?);
const abilists_contents = zig_lib_directory.handle.readFileAlloc(
allocator,
glibc.abilists_path,
glibc.abilists_max_size,
) catch |err| switch (err) {
error.OutOfMemory => return error.OutOfMemory,
else => fatal("unable to read " ++ glibc.abilists_path ++ ": {s}", .{@errorName(err)}),
};
defer allocator.free(abilists_contents);
const glibc_abi = try glibc.loadMetaData(allocator, abilists_contents);
defer glibc_abi.destroy(allocator);
var bw = io.bufferedWriter(stdout);
const w = bw.writer();
var jws = std.json.writeStream(w, 6);
try jws.beginObject();
try jws.objectField("arch");
try jws.beginArray();
for (meta.fieldNames(Target.Cpu.Arch)) |field| {
try jws.arrayElem();
try jws.emitString(field);
}
try jws.endArray();
try jws.objectField("os");
try jws.beginArray();
for (meta.fieldNames(Target.Os.Tag)) |field| {
try jws.arrayElem();
try jws.emitString(field);
}
try jws.endArray();
try jws.objectField("abi");
try jws.beginArray();
for (meta.fieldNames(Target.Abi)) |field| {
try jws.arrayElem();
try jws.emitString(field);
}
try jws.endArray();
try jws.objectField("libc");
try jws.beginArray();
for (target.available_libcs) |libc| {
const tmp = try std.fmt.allocPrint(allocator, "{s}-{s}-{s}", .{
@tagName(libc.arch), @tagName(libc.os), @tagName(libc.abi),
});
defer allocator.free(tmp);
try jws.arrayElem();
try jws.emitString(tmp);
}
try jws.endArray();
try jws.objectField("glibc");
try jws.beginArray();
for (glibc_abi.all_versions) |ver| {
try jws.arrayElem();
const tmp = try std.fmt.allocPrint(allocator, "{}", .{ver});
defer allocator.free(tmp);
try jws.emitString(tmp);
}
try jws.endArray();
try jws.objectField("cpus");
try jws.beginObject();
for (meta.tags(Target.Cpu.Arch)) |arch| {
try jws.objectField(@tagName(arch));
try jws.beginObject();
for (arch.allCpuModels()) |model| {
try jws.objectField(model.name);
try jws.beginArray();
for (arch.allFeaturesList(), 0..) |feature, i_usize| {
const index = @intCast(Target.Cpu.Feature.Set.Index, i_usize);
if (model.features.isEnabled(index)) {
try jws.arrayElem();
try jws.emitString(feature.name);
}
}
try jws.endArray();
}
try jws.endObject();
}
try jws.endObject();
try jws.objectField("cpuFeatures");
try jws.beginObject();
for (meta.tags(Target.Cpu.Arch)) |arch| {
try jws.objectField(@tagName(arch));
try jws.beginArray();
for (arch.allFeaturesList()) |feature| {
try jws.arrayElem();
try jws.emitString(feature.name);
}
try jws.endArray();
}
try jws.endObject();
try jws.objectField("native");
try jws.beginObject();
{
const triple = try native_target.zigTriple(allocator);
defer allocator.free(triple);
try jws.objectField("triple");
try jws.emitString(triple);
}
{
try jws.objectField("cpu");
try jws.beginObject();
try jws.objectField("arch");
try jws.emitString(@tagName(native_target.cpu.arch));
try jws.objectField("name");
const cpu = native_target.cpu;
try jws.emitString(cpu.model.name);
{
try jws.objectField("features");
try jws.beginArray();
for (native_target.cpu.arch.allFeaturesList(), 0..) |feature, i_usize| {
const index = @intCast(Target.Cpu.Feature.Set.Index, i_usize);
if (cpu.features.isEnabled(index)) {
try jws.arrayElem();
try jws.emitString(feature.name);
}
}
try jws.endArray();
}
try jws.endObject();
}
try jws.objectField("os");
try jws.emitString(@tagName(native_target.os.tag));
try jws.objectField("abi");
try jws.emitString(@tagName(native_target.abi));
try jws.endObject();
try jws.endObject();
try w.writeByte('\n');
return bw.flush();
}
|
