Initial reorg.

This is largely the same as #305, but updated for the current tree.

crates/obj/src/table.rs

@@ -0,0 +1,20 @@
+use alloc::string::String;
+use alloc::vec::Vec;
+use faerie::{Artifact, Decl};
+
+/// Declares data segment symbol
+pub fn declare_table(obj: &mut Artifact, index: usize) -> Result<(), String> {
+    let name = format!("_table_{}", index);
+    obj.declare(name, Decl::data())
+        .map_err(|err| format!("{}", err))?;
+    Ok(())
+}
+
+/// Emit segment data and initialization location
+pub fn emit_table(obj: &mut Artifact, index: usize) -> Result<(), String> {
+    let name = format!("_table_{}", index);
+    // FIXME: We need to initialize table using function symbols
+    obj.define(name, Vec::new())
+        .map_err(|err| format!("{}", err))?;
+    Ok(())
+}