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[deliverable/binutils-gdb.git] / bfd / elf-bfd.h

diff --git a/bfd/elf-bfd.h b/bfd/elf-bfd.h
index c92671a61012767b604e5f7ef320a13c0819ba81..ea4d59a7bdaa0ea667ea6e9971608a4b0b1cddd3 100644 (file)
--- a/bfd/elf-bfd.h
+++ b/bfd/elf-bfd.h
@@ -1,5 +1,5 @@
 /* BFD back-end data structures for ELF files.
-   Copyright (C) 1992-2015 Free Software Foundation, Inc.
+   Copyright (C) 1992-2016 Free Software Foundation, Inc.
    Written by Cygnus Support.
 
    This file is part of BFD, the Binary File Descriptor library.
@@ -595,6 +595,7 @@ struct elf_link_hash_table
   asection *iplt;
   asection *irelplt;
   asection *irelifunc;
+  asection *dynsym;
 };
 
 /* Look up an entry in an ELF linker hash table.  */
@@ -730,15 +731,15 @@ typedef enum {
 struct bfd_elf_special_section
 {
   const char *prefix;
-  int prefix_length;
+  unsigned int prefix_length;
   /* 0 means name must match PREFIX exactly.
      -1 means name must start with PREFIX followed by an arbitrary string.
      -2 means name must match PREFIX exactly or consist of PREFIX followed
      by a dot then anything.
      > 0 means name must start with the first PREFIX_LENGTH chars of
      PREFIX and finish with the last SUFFIX_LENGTH chars of PREFIX.  */
-  int suffix_length;
-  int type;
+  signed int suffix_length;
+  unsigned int type;
   bfd_vma attr;
 };
 
@@ -1169,6 +1170,11 @@ struct elf_backend_data
   unsigned int (*elf_backend_count_relocs)
     (struct bfd_link_info *, asection *);
 
+  /* Count additionals relocations.  Called for relocatable links if
+     additional relocations needs to be created.  */
+  unsigned int (*elf_backend_count_additional_relocs)
+    (asection *);
+
   /* Say whether to sort relocs output by ld -r and ld --emit-relocs,
      by r_offset.  If NULL, default to true.  */
   bfd_boolean (*sort_relocs_p)
@@ -1641,6 +1647,26 @@ struct output_elf_obj_tdata
   bfd_boolean flags_init;
 };
 
+/* Indicate if the bfd contains symbols that have the STT_GNU_IFUNC
+   symbol type or STB_GNU_UNIQUE binding.  Used to set the osabi
+   field in the ELF header structure.  */
+enum elf_gnu_symbols
+  {
+    elf_gnu_symbol_none = 0,
+    elf_gnu_symbol_any = 1 << 0,
+    elf_gnu_symbol_ifunc = (elf_gnu_symbol_any | 1 << 1),
+    elf_gnu_symbol_unique = (elf_gnu_symbol_any | 1 << 2),
+    elf_gnu_symbol_all = (elf_gnu_symbol_ifunc | elf_gnu_symbol_unique)
+  };
+
+typedef struct elf_section_list
+{
+  Elf_Internal_Shdr          hdr;
+  unsigned int               ndx;
+  struct elf_section_list *  next;
+} elf_section_list;
+  
+    
 /* Some private data is stashed away for future use using the tdata pointer
    in the bfd structure.  */
 
@@ -1657,7 +1683,7 @@ struct elf_obj_tdata
   Elf_Internal_Shdr dynversym_hdr;
   Elf_Internal_Shdr dynverref_hdr;
   Elf_Internal_Shdr dynverdef_hdr;
-  Elf_Internal_Shdr symtab_shndx_hdr;
+  elf_section_list * symtab_shndx_list;
   bfd_vma gp;                          /* The gp value */
   unsigned int gp_size;                        /* The gp size */
   unsigned int num_elf_sections;       /* elf_sect_ptr size */
@@ -1732,7 +1758,7 @@ struct elf_obj_tdata
   Elf_Internal_Shdr **group_sect_ptr;
   int num_group;
 
-  unsigned int symtab_section, symtab_shndx_section, dynsymtab_section;
+  unsigned int symtab_section, dynsymtab_section;
   unsigned int dynversym_section, dynverdef_section, dynverref_section;
 
   /* An identifier used to distinguish different target
@@ -1751,10 +1777,7 @@ struct elf_obj_tdata
      symbols.  */
   bfd_boolean bad_symtab;
 
-  /* True if the bfd contains symbols that have the STT_GNU_IFUNC
-     symbol type or STB_GNU_UNIQUE binding.  Used to set the osabi
-     field in the ELF header structure.  */
-  bfd_boolean has_gnu_symbols;
+  enum elf_gnu_symbols has_gnu_symbols;
 
   /* Information grabbed from an elf core file.  */
   struct core_elf_obj_tdata *core;
@@ -1777,7 +1800,7 @@ struct elf_obj_tdata
 #define elf_stack_flags(bfd)   (elf_tdata(bfd) -> o->stack_flags)
 #define elf_shstrtab(bfd)      (elf_tdata(bfd) -> o->strtab_ptr)
 #define elf_onesymtab(bfd)     (elf_tdata(bfd) -> symtab_section)
-#define elf_symtab_shndx(bfd)  (elf_tdata(bfd) -> symtab_shndx_section)
+#define elf_symtab_shndx_list(bfd)     (elf_tdata(bfd) -> symtab_shndx_list)
 #define elf_strtab_sec(bfd)    (elf_tdata(bfd) -> o->strtab_section)
 #define elf_shstrtab_sec(bfd)  (elf_tdata(bfd) -> o->shstrtab_section)
 #define elf_symtab_hdr(bfd)    (elf_tdata(bfd) -> symtab_hdr)
@@ -1978,7 +2001,7 @@ extern bfd_boolean _bfd_elf_find_line
   (bfd *, asymbol **, asymbol *, const char **, unsigned int *);
 extern bfd_boolean _bfd_elf_find_inliner_info
   (bfd *, const char **, const char **, unsigned int *);
-extern bfd_boolean _bfd_elf_find_function
+extern asymbol *_bfd_elf_find_function
   (bfd *, asymbol **, asection *, bfd_vma, const char **, const char **);
 #define _bfd_elf_read_minisymbols _bfd_generic_read_minisymbols
 #define _bfd_elf_minisymbol_to_symbol _bfd_generic_minisymbol_to_symbol
@@ -2278,7 +2301,7 @@ extern asection *_bfd_elf_gc_mark_hook
 
 extern asection *_bfd_elf_gc_mark_rsec
   (struct bfd_link_info *, asection *, elf_gc_mark_hook_fn,
-   struct elf_reloc_cookie *);
+   struct elf_reloc_cookie *, bfd_boolean *);
 
 extern bfd_boolean _bfd_elf_gc_mark_reloc
   (struct bfd_link_info *, asection *, elf_gc_mark_hook_fn,
@@ -2546,7 +2569,7 @@ extern asection _bfd_elf_large_com_section;
       else if (info->unresolved_syms_in_objects == RM_IGNORE           \
               && ELF_ST_VISIBILITY (h->other) == STV_DEFAULT)          \
        ignored = TRUE;                                                 \
-      else if (!info->relocatable)                                     \
+      else if (!bfd_link_relocatable (info))                           \
        {                                                               \
          bfd_boolean err;                                              \
          err = (info->unresolved_syms_in_objects == RM_GENERATE_ERROR  \
@@ -2581,7 +2604,7 @@ extern asection _bfd_elf_large_com_section;
     _bfd_clear_contents (howto, input_bfd, input_section,              \
                         contents + rel[index].r_offset);               \
                                                                        \
-    if (info->relocatable                                              \
+    if (bfd_link_relocatable (info)                                    \
        && (input_section->flags & SEC_DEBUGGING))                      \
       {                                                                        \
        /* Only remove relocations in debug sections since other        \