* ld.h (args_type): Add gc_sections.

        * ldgram.y (ldgram_had_keep, KEEP): New.
        (input_section_spec_no_keep): Rename from old input_section_spec.
        (input_section_spec): New.  Recognize KEEP.
        * ldlang.c (wild_section): Handle keep sections.
        (lang_gc_wild_section, lang_gc_wild_file, lang_gc_wild): New.
        (lang_gc_sections_1, lang_gc_sections): New.
        (lang_process): Invoke lang_gc_sections.
        (lang_add_wild): Add keep argument.  Update all callers.
        * ldlang.h (lang_wild_statement_struct): Add keep_sections.
        * ldlex.l (KEEP): Match it.
        * ldmain.c (main): Error on -r and --gc-sections.
        * lexsup.c: Add --gc-sections.

        * scripttempl/elf.sc: Merge .text.* etc sections appropriately.
        Mark startup sections with KEEP.
        * scripttempl/elfppc.sc: Likewise.

        * ld.texinfo: Update for --gc-sections and KEEP.

1 files changed, 9 insertions, 0 deletions

diff --git a/ld/ld.h b/ld/ld.h
index c6ee15f..d92b148 100644
--- a/ld/ld.h
+++ b/ld/ld.h
@@ -138,6 +138,9 @@ typedef struct
   /* Name of shared object for whose symbol table this shared object
      is an auxiliary filter.  From the --auxiliary option.  */
   char **auxiliary_filters;
+
+  /* Remove unreferenced sections?  */
+  boolean gc_sections;
 } args_type;
 
 extern args_type command_line;
@@ -153,6 +156,12 @@ typedef struct
   /* If true, doing a dynamic link.  */
   boolean dynamic_link;
 
+  /* If true, -shared is supported.  */
+  /* ??? A better way to do this is perhaps to define this in the
+     ld_emulation_xfer_struct since this is really a target dependent
+     parameter.  */
+  boolean has_shared;
+
   /* If true, build constructors.  */
   boolean build_constructors;