Пятнадцать байтов на стек от конца

ufm

wget https://download.swift.org/swift-6.0-release/static-sdk/swift-6.0-RELEASE/swift-6.0-RELEASE_static-linux-0.0.1.artifactbundle.tar.gz
swift sdk install swift-6.0-RELEASE_static-linux-0.0.1.artifactbundle.tar.gz

$ cd ~/hello-swift

$ swift build --swift-sdk aarch64-swift-linux-musl -c release
Building for production...
[5/5] Linking hello-swift
Build complete! (0.59s)

$ .build/release/hello-swift
Hello, world!

$ ldd .build/release/hello-swift
	not a dynamic executable

$ size .build/release/hello-swift
   text	   data	    bss	    dec	    hex	filename
5092581	1125304	 180652	6398537	 61a249	.build/release/hello-swift

git clone https://github.com/sergev/ti-2500-datamath.git
cd ti-2500-datamath/swiftui
swift build
swift run

import Foundation
import ModelCxx

class ModelProxy: ObservableObject {
    @Published var display: String = ""

    static let shared = ModelProxy()

    // Allocate C++ object.
    private var calc = Calculator()

    // Show initial display contents.
    func setup() {
        calc.run()
        display = String(calc.get_display())
    }

    // Press key.
    func send(_ ch: Character) {
        calc.press_key(CChar(ch.asciiValue!))
        display = String(calc.get_display())
    }
}

$ mkdir Demo
$ cd Demo
$ swift package init --type executable
$ swift run
Building for debugging...
[3/3] Linking Demo
Build complete! (0.56s)
Hello, world!

$ tree
.
├── Package.swift
└── Sources
    └── main.swift

import PackageDescription

let package = Package(
    name: "Demo",
    targets: [
        // Targets are the basic building blocks of a package, defining a module or a test suite.
        // Targets can depend on other targets in this package and products from dependencies.
        .executableTarget(
            name: "Demo"),
    ]
)

import PackageDescription

let package = Package(
    name: "Demo",
    targets: [
        .target(name: "HelloCxx"),
        .executableTarget(
            name: "Demo",
            dependencies: ["HelloCxx"],
            swiftSettings: [.interoperabilityMode(.Cxx)]
        ),
    ]
)

$ mkdir Sources/Demo
$ mv Sources/main.swift Sources/Demo

print("Hello, world!")

import HelloCxx

let hello = HelloCxx()
let message = String(hello.message())
print(message)

#include <string>

class HelloCxx {
public:
    std::string message() const;
};

#include "HelloCxx.h"

std::string HelloCxx::message() const
{
    return "Hello from C++ to Swift!";
}

$ tree
.
├── Package.swift
└── Sources
    ├── Demo
    │   └── main.swift
    └── HelloCxx
        ├── HelloCxx.cpp
        └── include
            └── HelloCxx.h

$ swift run
Building for debugging...
[4/4] Linking Demo
Build complete! (2.87s)
Hello from C++ to Swift!