ld/

[deliverable/binutils-gdb.git] / ld / ld.h

diff --git a/ld/ld.h b/ld/ld.h
index ff654a650a13df2af1fc412973d5bd28bacc35b3..f049c079b62d6e84018e716931aefeadc29875a6 100644 (file)
--- a/ld/ld.h
+++ b/ld/ld.h
@@ -1,6 +1,7 @@
-/* ld.h -
-
-   Copyright (C) 1991, 1993 Free Software Foundation, Inc.
+/* ld.h -- general linker header file
+   Copyright 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000,
+   2001, 2002, 2003, 2004, 2005, 2006, 2007
+   Free Software Foundation, Inc.

 
    This file is part of GLD, the Gnu Linker.
 
 
    This file is part of GLD, the Gnu Linker.
 


@@ -15,19 +16,121 @@
    GNU General Public License for more details.
 
    You should have received a copy of the GNU General Public License
    GNU General Public License for more details.
 
    You should have received a copy of the GNU General Public License

-   along with GLD; see the file COPYING.  If not, write to
-   the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.  */
+   along with GLD; see the file COPYING.  If not, write to the Free
+   Software Foundation, 51 Franklin Street - Fifth Floor, Boston, MA
+   02110-1301, USA.  */

 
 #ifndef LD_H
 #define LD_H
 
 
 #ifndef LD_H
 #define LD_H
 

-/* Extra information we hold on sections */
-typedef struct  user_section_struct
-{
-  /* Pointer to the section where this data will go */
-  struct lang_input_statement_struct *file;
-} section_userdata_type;
+#ifdef HAVE_LOCALE_H
+#endif
+#ifndef SEEK_CUR
+#define SEEK_CUR 1
+#endif
+#ifndef SEEK_END
+#define SEEK_END 2
+#endif
+
+#if defined(__GNUC__) && !defined(C_ALLOCA)
+# undef alloca
+# define alloca __builtin_alloca
+#else
+# if defined(HAVE_ALLOCA_H) && !defined(C_ALLOCA)
+#  include <alloca.h>
+# else
+#  ifndef alloca /* predefined by HP cc +Olibcalls */
+#   if !defined (__STDC__) && !defined (__hpux)
+char *alloca ();
+#   else
+void *alloca ();
+#   endif /* __STDC__, __hpux */
+#  endif /* alloca */
+# endif /* HAVE_ALLOCA_H */
+#endif
+
+
+#ifdef HAVE_LOCALE_H
+# ifndef ENABLE_NLS
+   /* The Solaris version of locale.h always includes libintl.h.  If we have
+      been configured with --disable-nls then ENABLE_NLS will not be defined
+      and the dummy definitions of bindtextdomain (et al) below will conflict
+      with the defintions in libintl.h.  So we define these values to prevent
+      the bogus inclusion of libintl.h.  */
+#  define _LIBINTL_H
+#  define _LIBGETTEXT_H
+# endif
+# include <locale.h>
+#endif
+
+#ifdef ENABLE_NLS
+# include <libintl.h>
+# define _(String) gettext (String)
+# ifdef gettext_noop
+#  define N_(String) gettext_noop (String)
+# else
+#  define N_(String) (String)
+# endif
+#else
+# define gettext(Msgid) (Msgid)
+# define dgettext(Domainname, Msgid) (Msgid)
+# define dcgettext(Domainname, Msgid, Category) (Msgid)
+# define textdomain(Domainname) while (0) /* nothing */
+# define bindtextdomain(Domainname, Dirname) while (0) /* nothing */
+# define _(String) (String)
+# define N_(String) (String)
+#endif
+
+/* Look in this environment name for the linker to pretend to be */
+#define EMULATION_ENVIRON "LDEMULATION"
+/* If in there look for the strings: */
+
+/* Look in this variable for a target format */
+#define TARGET_ENVIRON "GNUTARGET"
+
+/* Input sections which are put in a section of this name are actually
+   discarded.  */
+#define DISCARD_SECTION_NAME "/DISCARD/"

 
 

+/* A file name list */
+typedef struct name_list {
+  const char *name;
+  struct name_list *next;
+}
+name_list;
+
+/* A wildcard specification.  */
+
+typedef enum {
+  none, by_name, by_alignment, by_name_alignment, by_alignment_name
+} sort_type;
+
+extern sort_type sort_section;
+
+struct wildcard_spec {
+  const char *name;
+  struct name_list *exclude_name_list;
+  sort_type sorted;
+};
+
+struct wildcard_list {
+  struct wildcard_list *next;
+  struct wildcard_spec spec;
+};
+
+struct map_symbol_def {
+  struct bfd_link_hash_entry *entry;
+  struct map_symbol_def *next;
+};
+
+/* The initial part of fat_user_section_struct has to be idential with
+   lean_user_section_struct.  */
+typedef struct fat_user_section_struct {
+  /* For input sections, when writing a map file: head / tail of a linked
+     list of hash table entries for symbols defined in this section.  */
+  struct map_symbol_def *map_symbol_def_head;
+  struct map_symbol_def **map_symbol_def_tail;
+} fat_section_userdata_type;

 
 #define get_userdata(x) ((x)->userdata)
 
 
 #define get_userdata(x) ((x)->userdata)
 


@@ -36,64 +139,182 @@ typedef struct  user_section_struct
 #define LONG_SIZE      (4)
 #define QUAD_SIZE      (8)
 
 #define LONG_SIZE      (4)
 #define QUAD_SIZE      (8)
 

-/* ALIGN macro changed to ALIGN_N to avoid     */
-/* conflict in /usr/include/machine/machparam.h */
-/* WARNING: If THIS is a 64 bit address and BOUNDARY is a 32 bit int,
-   you must coerce boundary to the same type as THIS.
-   ??? Is there a portable way to avoid this.  */
-#define ALIGN_N(this, boundary) \
-  ((( (this) + ((boundary) -1)) & (~((boundary)-1))))
-
-typedef struct
-{
+typedef struct {

   /* 1 => assign space to common symbols even if `relocatable_output'.  */
   /* 1 => assign space to common symbols even if `relocatable_output'.  */

-  boolean force_common_definition;
-  boolean relax;
+  bfd_boolean force_common_definition;
+
+  /* 1 => do not assign addresses to common symbols.  */
+  bfd_boolean inhibit_common_definition;
+  bfd_boolean relax;
+
+  /* Name of runtime interpreter to invoke.  */
+  char *interpreter;
+
+  /* Name to give runtime libary from the -soname argument.  */
+  char *soname;
+
+  /* Runtime library search path from the -rpath argument.  */
+  char *rpath;
+
+  /* Link time runtime library search path from the -rpath-link
+     argument.  */
+  char *rpath_link;
+
+  /* Big or little endian as set on command line.  */
+  enum { ENDIAN_UNSET = 0, ENDIAN_BIG, ENDIAN_LITTLE } endian;
+
+  /* If TRUE, build MIPS embedded PIC relocation tables in the output
+     file.  */
+  bfd_boolean embedded_relocs;
+
+  /* If TRUE, force generation of a file with a .exe file.  */
+  bfd_boolean force_exe_suffix;
+
+  /* If TRUE, generate a cross reference report.  */
+  bfd_boolean cref;
+
+  /* If TRUE (which is the default), warn about mismatched input
+     files.  */
+  bfd_boolean warn_mismatch;
+
+  /* Name of shared object whose symbol table should be filtered with
+     this shared object.  From the --filter option.  */
+  char *filter_shlib;
+
+  /* Name of shared object for whose symbol table this shared object
+     is an auxiliary filter.  From the --auxiliary option.  */
+  char **auxiliary_filters;
+
+  /* A version symbol to be applied to the symbol names found in the
+     .exports sections.  */
+  char *version_exports_section;
+
+  /* Default linker script.  */
+  char *default_script;
+
+  /* If TRUE (the default) check section addresses, once compute,
+     fpor overlaps.  */
+  bfd_boolean check_section_addresses;
+
+  /* If TRUE allow the linking of input files in an unknown architecture
+     assuming that the user knows what they are doing.  This was the old
+     behaviour of the linker.  The new default behaviour is to reject such
+     input files.  */
+  bfd_boolean accept_unknown_input_arch;
+
+  /* -Bsymbolic and -Bsymbolic-functions, as set on command line.  */
+  enum
+    {
+      symbolic_unset = 0,
+      symbolic,
+      symbolic_functions,
+    } symbolic;
+
+  /* --dynamic-list, --dynamic-list-cpp-new, --dynamic-list-cpp-typeinfo
+     and --dynamic-list FILE, as set on command line.  */
+  enum
+    {
+      dynamic_list_unset = 0,
+      dynamic_list_data,
+      dynamic_list
+    } dynamic_list;

 } args_type;
 
 extern args_type command_line;
 
 typedef int token_code_type;
 
 } args_type;
 
 extern args_type command_line;
 
 typedef int token_code_type;
 

-typedef struct 
-{
+typedef struct {

   bfd_size_type specified_data_size;
   bfd_size_type specified_data_size;

-  boolean magic_demand_paged;
-  boolean make_executable;
+  bfd_boolean magic_demand_paged;
+  bfd_boolean make_executable;
+
+  /* If TRUE, doing a dynamic link.  */
+  bfd_boolean dynamic_link;
+
+  /* If TRUE, -shared is supported.  */
+  /* ??? A better way to do this is perhaps to define this in the
+     ld_emulation_xfer_struct since this is really a target dependent
+     parameter.  */
+  bfd_boolean has_shared;

 
 

-  /* If true, request BFD to use the traditional format.  */
-  boolean traditional_format;
+  /* If TRUE, build constructors.  */
+  bfd_boolean build_constructors;

 
 

-  /* If true, doing a dynamic link.  */
-  boolean dynamic_link;
+  /* If TRUE, warn about any constructors.  */
+  bfd_boolean warn_constructors;

 
 

-  boolean build_constructors;
+  /* If TRUE, warn about merging common symbols with others.  */
+  bfd_boolean warn_common;

 
 

-  /* If true, warn about merging common symbols with others.  */
-  boolean warn_common;
+  /* If TRUE, only warn once about a particular undefined symbol.  */
+  bfd_boolean warn_once;

 
 

-  boolean sort_common;
+  /* If TRUE, warn if multiple global-pointers are needed (Alpha
+     only).  */
+  bfd_boolean warn_multiple_gp;

 
 

-  boolean text_read_only;
+  /* If TRUE, warn if the starting address of an output section
+     changes due to the alignment of an input section.  */
+  bfd_boolean warn_section_align;
+
+  /* If TRUE, warning messages are fatal */
+  bfd_boolean fatal_warnings;
+
+  bfd_boolean sort_common;
+
+  bfd_boolean text_read_only;

 
   char *map_filename;
   FILE *map_file;
 
 
   char *map_filename;
   FILE *map_file;
 

-  boolean stats;
+  bfd_boolean stats;
+
+  /* If set, orphan input sections will be mapped to separate output
+     sections.  */
+  bfd_boolean unique_orphan_sections;
+
+  unsigned int split_by_reloc;
+  bfd_size_type split_by_file;
+
+  /* The rpath separation character.  Usually ':'.  */
+  char rpath_separator;
+
+  /* If set, only search library directories explicitly selected
+     on the command line.  */
+  bfd_boolean only_cmd_line_lib_dirs;
+
+  /* The size of the hash table to use.  */
+  bfd_size_type hash_table_size;
+
+  /* The maximum page size for ELF.  */
+  bfd_vma maxpagesize;
+
+  /* The common page size for ELF.  */
+  bfd_vma commonpagesize;

 } ld_config_type;
 
 extern ld_config_type config;
 
 } ld_config_type;
 
 extern ld_config_type config;
 

-typedef enum
-{
-  lang_first_phase_enum,
-  lang_allocating_phase_enum,
-  lang_final_phase_enum
-} lang_phase_type;
+extern FILE * saved_script_handle;
+extern bfd_boolean force_make_executable;

 
 

-extern boolean had_script;
-extern boolean force_make_executable;
+/* Non-zero if we are processing a --defsym from the command line.  */
+extern int parsing_defsym;
+
+extern int yyparse (void);
+extern void add_cref (const char *, bfd *, asection *, bfd_vma);
+extern bfd_boolean handle_asneeded_cref (bfd *, enum notice_asneeded_action);
+extern void output_cref (FILE *);
+extern void check_nocrossrefs (void);
+extern void ld_abort (const char *, int, const char *) ATTRIBUTE_NORETURN;
+
+/* If gcc >= 2.6, we can give a function name, too.  */
+#if __GNUC__ < 2 || (__GNUC__ == 2 && __GNUC_MINOR__ < 6)
+#define __PRETTY_FUNCTION__  NULL
+#endif

 
 

-extern int yyparse PARAMS ((void));
+#undef abort
+#define abort() ld_abort (__FILE__, __LINE__, __PRETTY_FUNCTION__)

 
 #endif
 
 #endif