[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
-   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.
@@ -270,10 +270,21 @@ enum report_method
      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.  */
@@ -359,6 +370,10 @@ struct bfd_link_info
   /* 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;
 
@@ -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
-     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.
@@ -383,6 +398,9 @@ struct bfd_link_info
      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;
 
@@ -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;
 
-  /* 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;
@@ -497,6 +512,14 @@ struct bfd_link_info
   /* 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.  */
@@ -636,6 +659,11 @@ struct bfd_link_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.  */
 
@@ -757,6 +785,16 @@ struct bfd_link_callbacks
     (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
@@ -782,9 +820,9 @@ struct bfd_link_order
   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;
-  /* Size within output section.  */
+  /* Size within output section in octets.  */
   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 *);
 
+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