macho: forgot to commit relocatable.zig

src/MachO/relocatable.zig

@@ -0,0 +1,37 @@
+pub fn flush(macho_file: *MachO) !void {
+    claimUnresolved(macho_file);
+
+    state_log.debug("{}", .{macho_file.dumpState()});
+
+    macho_file.base.fatal("-r mode unimplemented", .{});
+    return error.Unimplemented;
+}
+
+fn claimUnresolved(macho_file: *MachO) void {
+    for (macho_file.objects.items) |index| {
+        const object = macho_file.getFile(index).?.object;
+
+        for (object.symbols.items, 0..) |sym_index, i| {
+            const nlist_idx = @as(Symbol.Index, @intCast(i));
+            const nlist = object.symtab.items(.nlist)[nlist_idx];
+            if (!nlist.ext()) continue;
+            if (!nlist.undf()) continue;
+
+            const sym = macho_file.getSymbol(sym_index);
+            if (sym.getFile(macho_file) != null) continue;
+
+            sym.value = 0;
+            sym.atom = 0;
+            sym.nlist_idx = nlist_idx;
+            sym.file = index;
+            sym.flags.weak_ref = nlist.weakRef();
+            sym.flags.import = true;
+        }
+    }
+}
+
+const state_log = std.log.scoped(.state);
+const std = @import("std");
+
+const MachO = @import("../MachO.zig");
+const Symbol = @import("Symbol.zig");