+
+/* LTO hooks. */
+
+/* Used to save and restore any previously active section. */
+static section *saved_section;
+
+
+/* Begin a new LTO output section named NAME. This default implementation
+ saves the old section and emits assembly code to switch to the new
+ section. */
+
+void
+lhd_begin_section (const char *name)
+{
+ section *section;
+
+ /* Save the old section so we can restore it in lto_end_asm_section. */
+ gcc_assert (!saved_section);
+ saved_section = in_section;
+ if (!saved_section)
+ saved_section = text_section;
+
+ /* Create a new section and switch to it. */
+ section = get_section (name, SECTION_DEBUG, NULL);
+ switch_to_section (section);
+}
+
+
+/* Write DATA of length LEN to the current LTO output section. This default
+ implementation just calls assemble_string and frees BLOCK. */
+
+void
+lhd_append_data (const void *data, size_t len, void *block)
+{
+ if (data)
+ assemble_string ((const char *)data, len);
+ free (block);
+}
+
+
+/* Finish the current LTO output section. This default implementation emits
+ assembly code to switch to any section previously saved by
+ lhd_begin_section. */
+
+void
+lhd_end_section (void)
+{
+ if (saved_section)
+ {
+ switch_to_section (saved_section);
+ saved_section = NULL;
+ }
+}