Automatic date update in version.in

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

diff --git a/include/bfdlink.h b/include/bfdlink.h
index a285f6dc5e2d9844844e2a877454bdcfbba23201..9b2194f6d5ca930f661e338062cc64877fdfc66a 100644 (file)
--- a/include/bfdlink.h
+++ b/include/bfdlink.h
@@ -108,6 +108,9 @@ struct bfd_link_hash_entry
      in a linker script.  */
   unsigned int linker_def : 1;
 
      in a linker script.  */
   unsigned int linker_def : 1;
 

+  /* Symbol defined in a linker script.  */
+  unsigned int ldscript_def : 1;
+

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


@@ -135,21 +138,29 @@ struct bfd_link_hash_entry
             automatically be non-NULL since the symbol will have been on the
             undefined symbol list.  */
          struct bfd_link_hash_entry *next;
             automatically be non-NULL since the symbol will have been on the
             undefined symbol list.  */
          struct bfd_link_hash_entry *next;

-         bfd *abfd;            /* BFD symbol was found in.  */
+         /* BFD symbol was found in.  */
+         bfd *abfd;
+         /* For __start_<name> and __stop_<name> symbols, the first
+            input section matching the name.  */
+         asection *section;

        } undef;
       /* bfd_link_hash_defined, bfd_link_hash_defweak.  */
       struct
        {
          struct bfd_link_hash_entry *next;
        } undef;
       /* bfd_link_hash_defined, bfd_link_hash_defweak.  */
       struct
        {
          struct bfd_link_hash_entry *next;

-         asection *section;    /* Symbol section.  */
-         bfd_vma value;        /* Symbol value.  */
+         /* Symbol section.  */
+         asection *section;
+         /* Symbol value.  */
+         bfd_vma value;

        } def;
       /* bfd_link_hash_indirect, bfd_link_hash_warning.  */
       struct
        {
          struct bfd_link_hash_entry *next;
        } def;
       /* bfd_link_hash_indirect, bfd_link_hash_warning.  */
       struct
        {
          struct bfd_link_hash_entry *next;

-         struct bfd_link_hash_entry *link;     /* Real symbol.  */
-         const char *warning;  /* Warning (bfd_link_hash_warning only).  */
+         /* Real symbol.  */
+         struct bfd_link_hash_entry *link;
+         /* Warning message (bfd_link_hash_warning only).  */
+         const char *warning;

        } i;
       /* bfd_link_hash_common.  */
       struct
        } i;
       /* bfd_link_hash_common.  */
       struct


@@ -165,7 +176,8 @@ struct bfd_link_hash_entry
             the union; this structure is a major space user in the
             linker.  */
          struct bfd_link_hash_common_entry *p;
             the union; this structure is a major space user in the
             linker.  */
          struct bfd_link_hash_common_entry *p;

-         bfd_size_type size;   /* Common symbol size.  */
+         /* Common symbol size.  */
+         bfd_size_type size;

        } c;
     } u;
 };
        } c;
     } u;
 };


@@ -226,6 +238,11 @@ extern void bfd_link_repair_undef_list
 /* Read symbols and cache symbol pointer array in outsymbols.  */
 extern bfd_boolean bfd_generic_link_read_symbols (bfd *);
 
 /* Read symbols and cache symbol pointer array in outsymbols.  */
 extern bfd_boolean bfd_generic_link_read_symbols (bfd *);
 

+/* Check the relocs in the BFD.  Called after all the input
+   files have been loaded, and garbage collection has tagged
+   any unneeded sections.  */
+extern bfd_boolean bfd_link_check_relocs (bfd *,struct bfd_link_info *);
+

 struct bfd_sym_chain
 {
   struct bfd_sym_chain *next;
 struct bfd_sym_chain
 {
   struct bfd_sym_chain *next;


@@ -440,6 +457,10 @@ 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 we should check relocations after all input files have
+     been opened.  */
+  unsigned int check_relocs_after_open_input: 1;
+

   /* TRUE if BND prefix in PLT entries is always generated.  */
   unsigned int bndplt: 1;
 
   /* TRUE if BND prefix in PLT entries is always generated.  */
   unsigned int bndplt: 1;
 


@@ -514,6 +535,9 @@ struct bfd_link_info
   /* The output BFD.  */
   bfd *output_bfd;
 
   /* The output BFD.  */
   bfd *output_bfd;
 

+  /* The import library generated.  */
+  bfd *out_implib_bfd;
+

   /* The list of input BFD's involved in the link.  These are chained
      together via the link.next field.  */
   bfd *input_bfds;
   /* The list of input BFD's involved in the link.  These are chained
      together via the link.next field.  */
   bfd *input_bfds;


@@ -591,11 +615,7 @@ struct bfd_link_info
 };
 
 /* This structures holds a set of callback functions.  These are called
 };
 
 /* This structures holds a set of callback functions.  These are called

-   by the BFD linker routines.  Except for the info functions, the first
-   argument to each callback function is the bfd_link_info structure
-   being used and each function returns a boolean value.  If the
-   function returns FALSE, then the BFD function which called it should
-   return with a failure indication.  */
+   by the BFD linker routines.  */

 
 struct bfd_link_callbacks
 {
 
 struct bfd_link_callbacks
 {


@@ -604,14 +624,15 @@ struct bfd_link_callbacks
      name of the symbol which caused the archive element to be pulled
      in.  This function may set *SUBSBFD to point to an alternative
      BFD from which symbols should in fact be added in place of the
      name of the symbol which caused the archive element to be pulled
      in.  This function may set *SUBSBFD to point to an alternative
      BFD from which symbols should in fact be added in place of the

-     original BFD's symbols.  */
+     original BFD's symbols.  Returns TRUE if the object should be
+     added, FALSE if it should be skipped.  */

   bfd_boolean (*add_archive_element)
     (struct bfd_link_info *, bfd *abfd, const char *name, bfd **subsbfd);
   /* A function which is called when a symbol is found with multiple
      definitions.  H is the symbol which is defined multiple times.
      NBFD is the new BFD, NSEC is the new section, and NVAL is the new
      value.  NSEC may be bfd_com_section or bfd_ind_section.  */
   bfd_boolean (*add_archive_element)
     (struct bfd_link_info *, bfd *abfd, const char *name, bfd **subsbfd);
   /* A function which is called when a symbol is found with multiple
      definitions.  H is the symbol which is defined multiple times.
      NBFD is the new BFD, NSEC is the new section, and NVAL is the new
      value.  NSEC may be bfd_com_section or bfd_ind_section.  */

-  bfd_boolean (*multiple_definition)
+  void (*multiple_definition)

     (struct bfd_link_info *, struct bfd_link_hash_entry *h,
      bfd *nbfd, asection *nsec, bfd_vma nval);
   /* A function which is called when a common symbol is defined
     (struct bfd_link_info *, struct bfd_link_hash_entry *h,
      bfd *nbfd, asection *nsec, bfd_vma nval);
   /* A function which is called when a common symbol is defined


@@ -620,7 +641,7 @@ struct bfd_link_callbacks
      symbol, one of bfd_link_hash_defined, bfd_link_hash_common, or
      bfd_link_hash_indirect.  If NTYPE is bfd_link_hash_common, NSIZE
      is the size of the new symbol.  */
      symbol, one of bfd_link_hash_defined, bfd_link_hash_common, or
      bfd_link_hash_indirect.  If NTYPE is bfd_link_hash_common, NSIZE
      is the size of the new symbol.  */

-  bfd_boolean (*multiple_common)
+  void (*multiple_common)

     (struct bfd_link_info *, struct bfd_link_hash_entry *h,
      bfd *nbfd, enum bfd_link_hash_type ntype, bfd_vma nsize);
   /* A function which is called to add a symbol to a set.  ENTRY is
     (struct bfd_link_info *, struct bfd_link_hash_entry *h,
      bfd *nbfd, enum bfd_link_hash_type ntype, bfd_vma nsize);
   /* A function which is called to add a symbol to a set.  ENTRY is


@@ -629,7 +650,7 @@ struct bfd_link_callbacks
      the set when generating a relocatable file, and is also used to
      get the size of the entry when generating an executable file.
      ABFD, SEC and VALUE identify the value to add to the set.  */
      the set when generating a relocatable file, and is also used to
      get the size of the entry when generating an executable file.
      ABFD, SEC and VALUE identify the value to add to the set.  */

-  bfd_boolean (*add_to_set)
+  void (*add_to_set)

     (struct bfd_link_info *, struct bfd_link_hash_entry *entry,
      bfd_reloc_code_real_type reloc, bfd *abfd, asection *sec, bfd_vma value);
   /* A function which is called when the name of a g++ constructor or
     (struct bfd_link_info *, struct bfd_link_hash_entry *entry,
      bfd_reloc_code_real_type reloc, bfd *abfd, asection *sec, bfd_vma value);
   /* A function which is called when the name of a g++ constructor or


@@ -638,7 +659,7 @@ struct bfd_link_callbacks
      destructor.  This will use BFD_RELOC_CTOR when generating a
      relocatable file.  NAME is the name of the symbol found.  ABFD,
      SECTION and VALUE are the value of the symbol.  */
      destructor.  This will use BFD_RELOC_CTOR when generating a
      relocatable file.  NAME is the name of the symbol found.  ABFD,
      SECTION and VALUE are the value of the symbol.  */

-  bfd_boolean (*constructor)
+  void (*constructor)

     (struct bfd_link_info *, bfd_boolean constructor, const char *name,
      bfd *abfd, asection *sec, bfd_vma value);
   /* A function which is called to issue a linker warning.  For
     (struct bfd_link_info *, bfd_boolean constructor, const char *name,
      bfd *abfd, asection *sec, bfd_vma value);
   /* A function which is called to issue a linker warning.  For


@@ -648,7 +669,7 @@ struct bfd_link_callbacks
      there is none.  ABFD, SECTION and ADDRESS identify the location
      which trigerred the warning; either ABFD or SECTION or both may
      be NULL if the location is not known.  */
      there is none.  ABFD, SECTION and ADDRESS identify the location
      which trigerred the warning; either ABFD or SECTION or both may
      be NULL if the location is not known.  */

-  bfd_boolean (*warning)
+  void (*warning)

     (struct bfd_link_info *, const char *warning, const char *symbol,
      bfd *abfd, asection *section, bfd_vma address);
   /* A function which is called when a relocation is attempted against
     (struct bfd_link_info *, const char *warning, const char *symbol,
      bfd *abfd, asection *section, bfd_vma address);
   /* A function which is called when a relocation is attempted against


@@ -656,7 +677,7 @@ struct bfd_link_callbacks
      ABFD, SECTION and ADDRESS identify the location from which the
      reference is made. IS_FATAL indicates whether an undefined symbol is
      a fatal error or not. In some cases SECTION may be NULL.  */
      ABFD, SECTION and ADDRESS identify the location from which the
      reference is made. IS_FATAL indicates whether an undefined symbol is
      a fatal error or not. In some cases SECTION may be NULL.  */

-  bfd_boolean (*undefined_symbol)
+  void (*undefined_symbol)

     (struct bfd_link_info *, const char *name, bfd *abfd,
      asection *section, bfd_vma address, bfd_boolean is_fatal);
   /* A function which is called when a reloc overflow occurs. ENTRY is
     (struct bfd_link_info *, const char *name, bfd *abfd,
      asection *section, bfd_vma address, bfd_boolean is_fatal);
   /* A function which is called when a reloc overflow occurs. ENTRY is


@@ -667,7 +688,7 @@ struct bfd_link_callbacks
      location at which the overflow occurs; if this is the result of a
      bfd_section_reloc_link_order or bfd_symbol_reloc_link_order, then
      ABFD will be NULL.  */
      location at which the overflow occurs; if this is the result of a
      bfd_section_reloc_link_order or bfd_symbol_reloc_link_order, then
      ABFD will be NULL.  */

-  bfd_boolean (*reloc_overflow)
+  void (*reloc_overflow)

     (struct bfd_link_info *, struct bfd_link_hash_entry *entry,
      const char *name, const char *reloc_name, bfd_vma addend,
      bfd *abfd, asection *section, bfd_vma address);
     (struct bfd_link_info *, struct bfd_link_hash_entry *entry,
      const char *name, const char *reloc_name, bfd_vma addend,
      bfd *abfd, asection *section, bfd_vma address);


@@ -677,7 +698,7 @@ struct bfd_link_callbacks
      problem occurred; if this is the result of a
      bfd_section_reloc_link_order or bfd_symbol_reloc_link_order, then
      ABFD will be NULL.  */
      problem occurred; if this is the result of a
      bfd_section_reloc_link_order or bfd_symbol_reloc_link_order, then
      ABFD will be NULL.  */

-  bfd_boolean (*reloc_dangerous)
+  void (*reloc_dangerous)

     (struct bfd_link_info *, const char *message,
      bfd *abfd, asection *section, bfd_vma address);
   /* A function which is called when a reloc is found to be attached
     (struct bfd_link_info *, const char *message,
      bfd *abfd, asection *section, bfd_vma address);
   /* A function which is called when a reloc is found to be attached


@@ -686,7 +707,7 @@ struct bfd_link_callbacks
      the reloc; if this is the result of a
      bfd_section_reloc_link_order or bfd_symbol_reloc_link_order, then
      ABFD will be NULL.  */
      the reloc; if this is the result of a
      bfd_section_reloc_link_order or bfd_symbol_reloc_link_order, then
      ABFD will be NULL.  */

-  bfd_boolean (*unattached_reloc)
+  void (*unattached_reloc)

     (struct bfd_link_info *, const char *name,
      bfd *abfd, asection *section, bfd_vma address);
   /* A function which is called when a symbol in notice_hash is
     (struct bfd_link_info *, const char *name,
      bfd *abfd, asection *section, bfd_vma address);
   /* A function which is called when a symbol in notice_hash is