...

src/compiler/CLI/GCC.cs

@@ -7,7 +7,7 @@ public static class GCC
     public static async Task<bool> Assemble(string asmPath, string objPath)
     {
         using var gccProcess = new Process();
-        gccProcess.StartInfo = new ProcessStartInfo("gcc", ["-g", "-c", asmPath, "-o", objPath])
+        gccProcess.StartInfo = new ProcessStartInfo("gcc", ["-g", "-nostdlib", "-ffreestanding", "-c", asmPath, "-o", objPath])
         {
             UseShellExecute = false,
             RedirectStandardOutput = true,
@@ -30,7 +30,7 @@ public static class GCC
     public static async Task<bool> Link(List<string> objectFiles, string outputPath)
     {
         using var gccProcess = new Process();
-        gccProcess.StartInfo = new ProcessStartInfo("gcc", ["-g", "-nostartfiles", "-o", outputPath, ..objectFiles])
+        gccProcess.StartInfo = new ProcessStartInfo("gcc", ["-g", "-nostdlib", "-ffreestanding", "-o", outputPath, ..objectFiles])
         {
             UseShellExecute = false,
             RedirectStandardOutput = true,

src/compiler/CLI/Program.cs

@@ -24,10 +24,31 @@ if (Directory.Exists(BIN_INT_DIR))
 Directory.CreateDirectory(BIN_DIR);
 Directory.CreateDirectory(BIN_INT_DIR);
 
+var files = new List<string>();
+
+var compileOnly = false;
+string? outPath = null;
+
+foreach (var arg in args)
+{
+    if (arg == "-c")
+    {
+        compileOnly = true;
+    }
+    else if (arg.StartsWith("-o="))
+    {
+        outPath = arg.Substring("-o=".Length);
+    }
+    else
+    {
+        files.Add(arg);
+    }
+}
+
 var diagnostics = new List<Diagnostic>();
 var syntaxTrees = new List<SyntaxTree>();
 
-foreach (var file in args)
+foreach (var file in files)
 {
     if (!File.Exists(file))
     {
@@ -36,7 +57,7 @@ foreach (var file in args)
     }
 }
 
-foreach (var file in args)
+foreach (var file in files)
 {
     var content = File.ReadAllText(file);
     var sourceText = new SourceText(file, content);
@@ -78,9 +99,10 @@ if (diagnostics.Any(diagnostic => diagnostic.Severity == DiagnosticSeverity.Erro
     return 1;
 }
 
-var objectFiles = new List<string>();
-
-objectFiles.Add("/home/oliste/repos/nub-lang/src/runtime/runtime.o");
+var objectFiles = new List<string>
+{
+    "libruntime.a"
+};
 
 foreach (var boundSyntaxTree in boundSyntaxTrees)
 {

src/runtime/.gitignore

@@ -1,2 +1,2 @@
-*.o
-out
+out
+out-int

src/runtime/makefile

@@ -1,15 +1,16 @@
-CC = gcc
+CC ?= x86_64-linux-gnu-gcc
+TARGET ?= x64
+
 CFLAGS = -nostdlib -ffreestanding -Wall -Werror -Wextra
 
-x64: runtime.o x64.o
+libruntime: out-int/runtime.o
+	$(CC) $(CFLAGS) -c targets/$(TARGET).s -o out-int/$(TARGET).o
 	mkdir -p out
-	ar rcs out/libruntime.a runtime.o x64.o
+	ar rcs out/libruntime_$(TARGET).a out-int/runtime.o out-int/$(TARGET).o
 
-runtime.o: runtime/runtime.c
-	$(CC) $(CFLAGS) -c runtime/runtime.c -o runtime.o
-
-x64.o: runtime.o platform/x64.s
-	$(CC) $(CFLAGS) -c platform/x64.s -o x64.o
+out-int/runtime.o: runtime/runtime.c
+	mkdir -p out-int
+	$(CC) $(CFLAGS) -c runtime/runtime.c -o out-int/runtime.o
 
 clean:
-	rm -r out runtime.o x64.o
+	rm -r out out-int