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src/compiler/NubLang.CLI/GCC.cs

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+using System.Diagnostics;
+
+namespace NubLang.CLI;
+
+public static class GCC
+{
+    public static async Task<bool> Assemble(string asm, string objPath)
+    {
+        var dir = Path.GetDirectoryName(objPath);
+        if (dir != null)
+        {
+            Directory.CreateDirectory(dir);
+        }
+        
+        using var process = new Process();
+        process.StartInfo = new ProcessStartInfo("gcc", ["-xassembler", "-c", "-o", objPath, "-"])
+        {
+            UseShellExecute = false,
+            RedirectStandardInput = true,
+            RedirectStandardOutput = true,
+            RedirectStandardError = true,
+            CreateNoWindow = true
+        };
+
+        process.Start();
+        
+        await process.StandardInput.WriteAsync(asm);
+        process.StandardInput.Close();
+        
+        await process.WaitForExitAsync();
+
+        var errors = await process.StandardError.ReadToEndAsync();
+        if (!string.IsNullOrWhiteSpace(errors))
+        {
+            await Console.Error.WriteLineAsync("gcc error when assembling:\n" + errors);
+        }
+
+        return process.ExitCode == 0;
+    }
+    
+    public static async Task<bool> Link(string executablePath, params IEnumerable<string> objectFiles)
+    {
+        var dir = Path.GetDirectoryName(executablePath);
+        if (dir != null)
+        {
+            Directory.CreateDirectory(dir);
+        }
+        
+        using var process = new Process();
+        process.StartInfo = new ProcessStartInfo("gcc", ["-nostartfiles", "-o", executablePath, ..objectFiles])
+        {
+            UseShellExecute = false,
+            RedirectStandardInput = true,
+            RedirectStandardOutput = true,
+            RedirectStandardError = true,
+            CreateNoWindow = true
+        };
+
+        process.Start();
+        
+        await process.WaitForExitAsync();
+
+        var errors = await process.StandardError.ReadToEndAsync();
+        if (!string.IsNullOrWhiteSpace(errors))
+        {
+            await Console.Error.WriteLineAsync("gcc error when linking:\n" + errors);
+        }
+
+        return process.ExitCode == 0;
+    }
+}