Add --no-dynamic-linker option to ld, for static PIE use

[deliverable/binutils-gdb.git] / include / bfdlink.h

diff --git a/include/bfdlink.h b/include/bfdlink.h
index 125683db8673ec4ec74ab2df692b0ca821f3e0a9..2ffb3d1ab56e396564aa042e80bf71495d910cf3 100644 (file)
--- a/include/bfdlink.h
+++ b/include/bfdlink.h
@@ -1,5 +1,5 @@
 /* bfdlink.h -- header file for BFD link routines
 /* bfdlink.h -- header file for BFD link routines

-   Copyright (C) 1993-2014 Free Software Foundation, Inc.
+   Copyright (C) 1993-2015 Free Software Foundation, Inc.

    Written by Steve Chamberlain and Ian Lance Taylor, Cygnus Support.
 
    This file is part of BFD, the Binary File Descriptor library.
    Written by Steve Chamberlain and Ian Lance Taylor, Cygnus Support.
 
    This file is part of BFD, the Binary File Descriptor library.


@@ -91,8 +91,14 @@ struct bfd_link_hash_entry
   /* Type of this entry.  */
   ENUM_BITFIELD (bfd_link_hash_type) type : 8;
 
   /* Type of this entry.  */
   ENUM_BITFIELD (bfd_link_hash_type) type : 8;
 

+  /* Symbol is referenced in a normal object file, as distict from a LTO
+     IR object file.  */

   unsigned int non_ir_ref : 1;
 
   unsigned int non_ir_ref : 1;
 

+  /* Symbol is a built-in define.  These will be overridden by PROVIDE
+     in a linker script.  */
+  unsigned int linker_def : 1;
+

   /* A union of information depending upon the type.  */
   union
     {
   /* A union of information depending upon the type.  */
   union
     {


@@ -253,22 +259,30 @@ struct flag_info
 struct bfd_elf_dynamic_list;
 struct bfd_elf_version_tree;
 
 struct bfd_elf_dynamic_list;
 struct bfd_elf_version_tree;
 

-/* This structure holds all the information needed to communicate
-   between BFD and the linker when doing a link.  */
+/* Types of output.  */

 
 

-struct bfd_link_info
+enum output_type

 {
 {

-  /* TRUE if BFD should generate a shared object (or a pie).  */
-  unsigned int shared: 1;
+  type_pde,
+  type_pie,
+  type_relocatable,
+  type_dll,
+};

 
 

-  /* TRUE if generating an executable, position independent or not.  */
-  unsigned int executable : 1;
+#define bfd_link_pde(info)        ((info)->type == type_pde)
+#define bfd_link_dll(info)        ((info)->type == type_dll)
+#define bfd_link_relocatable(info) ((info)->type == type_relocatable)
+#define bfd_link_pie(info)        ((info)->type == type_pie)
+#define bfd_link_executable(info)  (bfd_link_pde (info) || bfd_link_pie (info))
+#define bfd_link_pic(info)        (bfd_link_dll (info) || bfd_link_pie (info))

 
 

-  /* TRUE if generating a position independent executable.  */
-  unsigned int pie: 1;
+/* This structure holds all the information needed to communicate
+   between BFD and the linker when doing a link.  */

 
 

-  /* TRUE if BFD should generate a relocatable object file.  */
-  unsigned int relocatable: 1;
+struct bfd_link_info
+{
+  /* Output type.  */
+  ENUM_BITFIELD (output_type) type : 2;

 
   /* TRUE if BFD should pre-bind symbols in a shared object.  */
   unsigned int symbolic: 1;
 
   /* TRUE if BFD should pre-bind symbols in a shared object.  */
   unsigned int symbolic: 1;


@@ -295,9 +309,6 @@ struct bfd_link_info
   /* TRUE if the LTO plugin is active.  */
   unsigned int lto_plugin_active: 1;
 
   /* TRUE if the LTO plugin is active.  */
   unsigned int lto_plugin_active: 1;
 

-  /* TRUE if we are loading LTO outputs.  */
-  unsigned int loading_lto_outputs: 1;
-

   /* TRUE if global symbols in discarded sections should be stripped.  */
   unsigned int strip_discarded: 1;
 
   /* TRUE if global symbols in discarded sections should be stripped.  */
   unsigned int strip_discarded: 1;
 


@@ -339,9 +350,9 @@ struct bfd_link_info
   /* TRUE if PT_GNU_RELRO segment should be created.  */
   unsigned int relro: 1;
 
   /* TRUE if PT_GNU_RELRO segment should be created.  */
   unsigned int relro: 1;
 

-  /* TRUE if .eh_frame_hdr section and PT_GNU_EH_FRAME ELF segment
-     should be created.  */
-  unsigned int eh_frame_hdr: 1;
+  /* Nonzero if .eh_frame_hdr section and PT_GNU_EH_FRAME ELF segment
+     should be created.  1 for DWARF2 tables, 2 for compact tables.  */
+  unsigned int eh_frame_hdr_type: 2;

 
   /* TRUE if we should warn when adding a DT_TEXTREL to a shared object.  */
   unsigned int warn_shared_textrel: 1;
 
   /* TRUE if we should warn when adding a DT_TEXTREL to a shared object.  */
   unsigned int warn_shared_textrel: 1;


@@ -417,6 +428,12 @@ struct bfd_link_info
   /* TRUE if the linker script contained an explicit PHDRS command.  */
   unsigned int user_phdrs: 1;
 
   /* TRUE if the linker script contained an explicit PHDRS command.  */
   unsigned int user_phdrs: 1;
 

+  /* TRUE if BND prefix in PLT entries is always generated.  */
+  unsigned int bndplt: 1;
+
+  /* TRUE if generation of .interp/PT_INTERP should be suppressed.  */
+  unsigned int nointerp: 1;
+

   /* Char that may appear as the first char of a symbol, but should be
      skipped (like symbol_leading_char) when looking up symbols in
      wrap_hash.  Used by PowerPC Linux for 'dot' symbols.  */
   /* Char that may appear as the first char of a symbol, but should be
      skipped (like symbol_leading_char) when looking up symbols in
      wrap_hash.  Used by PowerPC Linux for 'dot' symbols.  */


@@ -425,6 +442,9 @@ struct bfd_link_info
   /* Separator between archive and filename in linker script filespecs.  */
   char path_separator;
 
   /* Separator between archive and filename in linker script filespecs.  */
   char path_separator;
 

+  /* Compress DWARF debug sections.  */
+  enum compressed_debug_section_type compress_debug;
+

   /* Default stack size.  Zero means default (often zero itself), -1
      means explicitly zero-sized.  */
   bfd_signed_vma stacksize;
   /* Default stack size.  Zero means default (often zero itself), -1
      means explicitly zero-sized.  */
   bfd_signed_vma stacksize;


@@ -511,6 +531,11 @@ struct bfd_link_info
      relaxation returning true in *AGAIN.  */
   int relax_trip;
 
      relaxation returning true in *AGAIN.  */
   int relax_trip;
 

+  /* > 0 to treat protected data defined in the shared library as
+     reference external.  0 to treat it as internal.  -1 to let
+     backend to decide.  */
+  int extern_protected_data;
+

   /* Non-zero if auto-import thunks for DATA items in pei386 DLLs
      should be generated/linked against.  Set to 1 if this feature
      is explicitly requested by the user, -1 if enabled by default.  */
   /* Non-zero if auto-import thunks for DATA items in pei386 DLLs
      should be generated/linked against.  Set to 1 if this feature
      is explicitly requested by the user, -1 if enabled by default.  */