Commit 421b105d85

@@ -550,6 +550,8 @@ pub fn calcSymtabSize(self: *ZigObject, macho_file: *MachO) void {
         const file = ref.getFile(macho_file) orelse continue;
         if (file.getIndex() != self.index) continue;
         if (sym.getAtom(macho_file)) |atom| if (!atom.isAlive()) continue;
+        const name = sym.getName(macho_file);
+        assert(name.len > 0);
         sym.flags.output_symtab = true;
         if (sym.isLocal()) {
             sym.addExtra(.{ .symtab = self.output_symtab_ctx.nlocals }, macho_file);
@@ -562,7 +564,7 @@ pub fn calcSymtabSize(self: *ZigObject, macho_file: *MachO) void {
             sym.addExtra(.{ .symtab = self.output_symtab_ctx.nimports }, macho_file);
             self.output_symtab_ctx.nimports += 1;
         }
-        self.output_symtab_ctx.strsize += @as(u32, @intCast(sym.getName(macho_file).len + 1));
+        self.output_symtab_ctx.strsize += @as(u32, @intCast(name.len + 1));
     }
 }