mirror/zig
1
0
Fork 0
mirror of https://github.com/ziglang/zig.git synced 2025-12-16 03:03:09 +00:00
Code Issues Packages Projects Releases Wiki Activity

fix handling of CrossTarget.cpu_model

Browse Source
This commit is contained in:
Andrew Kelley 2020-02-28 18:09:33 -05:00
parent 8691d3c50d
commit aa13f339d4
No known key found for this signature in database
GPG Key ID: 7C5F548F728501A9
3 changed files with 21 additions and 15 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

16
lib/std/zig/cross_target.zig
View File

@ -10,8 +10,7 @@ pub const CrossTarget = struct {
/// `null` means native. If this is `null` then `cpu_model` must be `null`.
cpu_arch: ?Target.Cpu.Arch = null,
/// `null` means native.
/// If this is non-null, `cpu_arch` must be specified.
/// `null` means native. If this is non-null, `cpu_arch` must be specified.
cpu_model: ?*const Target.Cpu.Model = null,
/// Sparse set of CPU features to add to the set from `cpu_model`.
@ -301,6 +300,10 @@ pub const CrossTarget = struct {
return error.UnknownCpuFeature;
}
}
} else if (arch_is_native) {
result.cpu_model = null;
} else {
result.cpu_model = Target.Cpu.Model.baseline(arch);
}
return result;
@ -725,6 +728,15 @@ pub const CrossTarget = struct {
};
test "CrossTarget.parse" {
{
const cross_target = try CrossTarget.parse(.{
.arch_os_abi = "aarch64-linux",
.cpu_features = "native",
});
std.testing.expect(cross_target.cpu_arch.? == .aarch64);
std.testing.expect(cross_target.cpu_model == null);
}
{
const cross_target = try CrossTarget.parse(.{ .arch_os_abi = "native" });

19
lib/std/zig/system.zig
View File

@ -192,21 +192,14 @@ pub const NativeTargetInfo = struct {
/// TODO Remove the Allocator requirement from this function.
pub fn detect(allocator: *Allocator, cross_target: CrossTarget) DetectError!NativeTargetInfo {
const cpu = blk: {
if (cross_target.cpu_arch) |arch| {
if (cross_target.cpu_model) |model| {
var adjusted_model = model.toCpu(arch);
cross_target.updateCpuFeatures(&adjusted_model.features);
break :blk adjusted_model;
} else {
// TODO Detect native CPU model. Until that is implemented we use baseline.
var adjusted_baseline = Target.Cpu.baseline(arch);
cross_target.updateCpuFeatures(&adjusted_baseline.features);
break :blk adjusted_baseline;
}
const arch = cross_target.getCpuArch();
if (cross_target.cpu_model) |model| {
var adjusted_model = model.toCpu(arch);
cross_target.updateCpuFeatures(&adjusted_model.features);
break :blk adjusted_model;
} else {
assert(cross_target.cpu_model == null);
// TODO Detect native CPU model & features. Until that is implemented we use baseline.
var adjusted_baseline = Target.Cpu.baseline(Target.current.cpu.arch);
var adjusted_baseline = Target.Cpu.baseline(arch);
cross_target.updateCpuFeatures(&adjusted_baseline.features);
break :blk adjusted_baseline;
}

1
src-self-hosted/stage2.zig
View File

@ -1163,6 +1163,7 @@ fn crossTargetToTarget(cross_target: CrossTarget, dynamic_linker_ptr: *?[*:0]u8)
const arch = std.Target.current.cpu.arch;
info.target.cpu = try detectNativeCpuWithLLVM(arch, llvm_cpu_name, llvm_cpu_features);
cross_target.updateCpuFeatures(&info.target.cpu.features);
info.target.cpu.arch = cross_target.getCpuArch();
}
if (info.dynamic_linker.get()) |dl| {
dynamic_linker_ptr.* = try mem.dupeZ(std.heap.c_allocator, u8, dl);