[gdb/symtab] Make gold index workaround more precise

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

diff --git a/include/bfdlink.h b/include/bfdlink.h
index bb7909a9e2f7ca961ea574f74013008a059a2cf7..34a0d2ec4efaec3334af336e729be2d1cb1a6e93 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) 1993-2019 Free Software Foundation, Inc.
+   Copyright (C) 1993-2020 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.


@@ -270,10 +270,21 @@ enum report_method
      allowed to set the value.  */
   RM_NOT_YET_SET = 0,
   RM_IGNORE,
      allowed to set the value.  */
   RM_NOT_YET_SET = 0,
   RM_IGNORE,

-  RM_GENERATE_WARNING,
-  RM_GENERATE_ERROR
+  RM_DIAGNOSE,

 };
 
 };
 

+/* How to handle DT_TEXTREL.  */
+
+enum textrel_check_method
+{
+  textrel_check_none,
+  textrel_check_warning,
+  textrel_check_error
+};
+
+#define bfd_link_textrel_check(info) \
+  (info->textrel_check != textrel_check_none)
+

 typedef enum {with_flags, without_flags} flag_type;
 
 /* A section flag list.  */
 typedef enum {with_flags, without_flags} flag_type;
 
 /* A section flag list.  */


@@ -359,6 +370,10 @@ struct bfd_link_info
   /* TRUE if section groups should be resolved.  */
   unsigned int resolve_section_groups: 1;
 
   /* TRUE if section groups should be resolved.  */
   unsigned int resolve_section_groups: 1;
 

+  /* Set if output file is big-endian, or if that is unknown, from
+     the command line or first input file endianness.  */
+  unsigned int big_endian : 1;
+

   /* Which symbols to strip.  */
   ENUM_BITFIELD (bfd_link_strip) strip : 2;
 
   /* Which symbols to strip.  */
   ENUM_BITFIELD (bfd_link_strip) strip : 2;
 


@@ -369,7 +384,7 @@ struct bfd_link_info
   ENUM_BITFIELD (bfd_link_elf_stt_common) elf_stt_common : 2;
 
   /* Criteria for skipping symbols when determining
   ENUM_BITFIELD (bfd_link_elf_stt_common) elf_stt_common : 2;
 
   /* Criteria for skipping symbols when determining

-     whether to include an object from an archive. */
+     whether to include an object from an archive.  */

   ENUM_BITFIELD (bfd_link_common_skip_ar_symbols) common_skip_ar_symbols : 2;
 
   /* What to do with unresolved symbols in an object file.
   ENUM_BITFIELD (bfd_link_common_skip_ar_symbols) common_skip_ar_symbols : 2;
 
   /* What to do with unresolved symbols in an object file.


@@ -383,6 +398,9 @@ struct bfd_link_info
      The same defaults apply.  */
   ENUM_BITFIELD (report_method) unresolved_syms_in_shared_libs : 2;
 
      The same defaults apply.  */
   ENUM_BITFIELD (report_method) unresolved_syms_in_shared_libs : 2;
 

+  /* TRUE if unresolved symbols are to be warned, rather than errored.  */
+  unsigned int warn_unresolved_syms: 1;
+

   /* TRUE if shared objects should be linked directly, not shared.  */
   unsigned int static_link: 1;
 
   /* TRUE if shared objects should be linked directly, not shared.  */
   unsigned int static_link: 1;
 


@@ -404,11 +422,8 @@ struct bfd_link_info
      should be created.  1 for DWARF2 tables, 2 for compact tables.  */
   unsigned int eh_frame_hdr_type: 2;
 
      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 error when adding a DT_TEXTREL.  */
-  unsigned int error_textrel: 1;
+  /* What to do with DT_TEXTREL in output.  */
+  ENUM_BITFIELD (textrel_check_method) textrel_check: 2;

 
   /* TRUE if .hash section should be created.  */
   unsigned int emit_hash: 1;
 
   /* TRUE if .hash section should be created.  */
   unsigned int emit_hash: 1;


@@ -497,6 +512,14 @@ struct bfd_link_info
   /* TRUE if "-Map map" is passed to linker.  */
   unsigned int has_map_file : 1;
 
   /* TRUE if "-Map map" is passed to linker.  */
   unsigned int has_map_file : 1;
 

+  /* TRUE if "--enable-non-contiguous-regions" is passed to the
+     linker.  */
+  unsigned int non_contiguous_regions : 1;
+
+  /* TRUE if "--enable-non-contiguous-regions-warnings" is passed to
+     the linker.  */
+  unsigned int non_contiguous_regions_warnings : 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.  */


@@ -636,6 +659,11 @@ struct bfd_link_info
   struct bfd_elf_version_tree *version_info;
 };
 
   struct bfd_elf_version_tree *version_info;
 };
 

+/* Some forward-definitions used by some callbacks.  */
+
+struct elf_strtab_hash;
+struct elf_sym_strtab;
+

 /* This structures holds a set of callback functions.  These are called
    by the BFD linker routines.  */
 
 /* This structures holds a set of callback functions.  These are called
    by the BFD linker routines.  */
 


@@ -757,6 +785,16 @@ struct bfd_link_callbacks
     (struct bfd_link_info *, bfd * abfd,
      asection * current_section, asection * previous_section,
      bfd_boolean new_segment);
     (struct bfd_link_info *, bfd * abfd,
      asection * current_section, asection * previous_section,
      bfd_boolean new_segment);

+  /* This callback provides a chance for callers of the BFD to examine the
+     ELF string table and symbol table once they are complete and indexes and
+     offsets assigned.  */
+  void (*examine_strtab)
+    (struct elf_sym_strtab *syms, bfd_size_type symcount,
+     struct elf_strtab_hash *symstrtab);
+  /* This callback should emit the CTF section into a non-loadable section in
+     the output BFD named .ctf or a name beginning with ".ctf.".  */
+  void (*emit_ctf)
+    (void);

 };
 \f
 /* The linker builds link_order structures which tell the code how to
 };
 \f
 /* The linker builds link_order structures which tell the code how to


@@ -782,9 +820,9 @@ struct bfd_link_order
   struct bfd_link_order *next;
   /* Type of link_order.  */
   enum bfd_link_order_type type;
   struct bfd_link_order *next;
   /* Type of link_order.  */
   enum bfd_link_order_type type;

-  /* Offset within output section.  */
+  /* Offset within output section in bytes.  */

   bfd_vma offset;
   bfd_vma offset;

-  /* Size within output section.  */
+  /* Size within output section in octets.  */

   bfd_size_type size;
   /* Type specific information.  */
   union
   bfd_size_type size;
   /* Type specific information.  */
   union


@@ -858,6 +896,20 @@ struct bfd_link_order_reloc
 /* Allocate a new link_order for a section.  */
 extern struct bfd_link_order *bfd_new_link_order (bfd *, asection *);
 
 /* Allocate a new link_order for a section.  */
 extern struct bfd_link_order *bfd_new_link_order (bfd *, asection *);
 

+struct bfd_section_already_linked;
+
+extern bfd_boolean bfd_section_already_linked_table_init (void);
+extern void bfd_section_already_linked_table_free (void);
+extern bfd_boolean _bfd_handle_already_linked
+  (struct bfd_section *, struct bfd_section_already_linked *,
+   struct bfd_link_info *);
+
+extern struct bfd_section *_bfd_nearby_section
+  (bfd *, struct bfd_section *, bfd_vma);
+
+extern void _bfd_fix_excluded_sec_syms
+  (bfd *, struct bfd_link_info *);
+

 /* These structures are used to describe version information for the
    ELF linker.  These structures could be manipulated entirely inside
    BFD, but it would be a pain.  Instead, the regular linker sets up
 /* These structures are used to describe version information for the
    ELF linker.  These structures could be manipulated entirely inside
    BFD, but it would be a pain.  Instead, the regular linker sets up