19990502 sourceware importbinu_ss_19990502

1 files changed, 490 insertions, 0 deletions

diff --git a/ld/ldlang.h b/ld/ldlang.h
new file mode 100644
index 0000000..7bd7972
--- /dev/null
+++ b/ld/ldlang.h
@@ -0,0 +1,490 @@
+/* ldlang.h - linker command language support
+   Copyright 1991, 92, 93, 94, 95, 96, 97, 1998 Free Software Foundation, Inc.
+   
+   This file is part of GLD, the Gnu Linker.
+   
+   GLD is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 1, or (at your option)
+   any later version.
+   
+   GLD is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   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, 59 Temple Place - Suite 330, Boston, MA
+   02111-1307, USA.  */
+
+#ifndef LDLANG_H
+#define LDLANG_H
+
+typedef enum
+{
+  lang_input_file_is_l_enum,
+  lang_input_file_is_symbols_only_enum,
+  lang_input_file_is_marker_enum,
+  lang_input_file_is_fake_enum,
+  lang_input_file_is_search_file_enum,
+  lang_input_file_is_file_enum
+} lang_input_file_enum_type;
+
+typedef unsigned int fill_type;
+typedef struct statement_list
+{
+  union lang_statement_union *head;
+  union lang_statement_union **tail;
+} lang_statement_list_type;
+
+
+typedef struct memory_region_struct
+{
+  char *name;
+  struct memory_region_struct *next;
+  bfd_vma origin;
+  bfd_size_type length;
+  bfd_vma current;
+  bfd_size_type old_length;
+  flagword flags;
+  flagword not_flags;
+  boolean had_full_message;
+} lang_memory_region_type ;
+
+typedef struct lang_statement_header_struct 
+{
+  union  lang_statement_union  *next;
+  enum statement_enum
+    {
+      lang_output_section_statement_enum,
+      lang_assignment_statement_enum,
+      lang_input_statement_enum,
+      lang_address_statement_enum,
+      lang_wild_statement_enum,
+      lang_input_section_enum,
+      lang_object_symbols_statement_enum,
+      lang_fill_statement_enum,
+      lang_data_statement_enum,
+      lang_reloc_statement_enum,
+      lang_target_statement_enum,
+      lang_output_statement_enum,
+      lang_padding_statement_enum,
+      lang_group_statement_enum,
+
+      lang_afile_asection_pair_statement_enum,
+      lang_constructors_statement_enum
+    } type;
+} lang_statement_header_type;
+
+
+typedef struct 
+{
+  lang_statement_header_type header;
+  union etree_union *exp;
+} lang_assignment_statement_type;
+
+
+typedef struct lang_target_statement_struct
+{
+  lang_statement_header_type header;
+  const char *target;
+} lang_target_statement_type;
+
+
+typedef struct lang_output_statement_struct
+{
+  lang_statement_header_type header;
+  const char *name;
+} lang_output_statement_type;
+
+/* Section types specified in a linker script.  */
+
+enum section_type
+{
+  normal_section,
+  dsect_section,
+  copy_section,
+  noload_section,
+  info_section,
+  overlay_section
+};
+
+/* This structure holds a list of program headers describing segments
+   in which this section should be placed.  */
+
+struct lang_output_section_phdr_list
+{
+  struct lang_output_section_phdr_list *next;
+  const char *name;
+  boolean used;
+};
+
+typedef struct lang_output_section_statement_struct 
+{
+  lang_statement_header_type header;
+  union etree_union *addr_tree;
+  lang_statement_list_type children;
+  const char *memspec;
+  union lang_statement_union *next;
+  const char *name;
+
+  boolean processed;
+    
+  asection *bfd_section;
+  flagword flags;		/* Or together of all input sections */
+  enum section_type sectype;
+  struct memory_region_struct *region;
+  size_t block_value;
+  fill_type fill;
+
+  int subsection_alignment;  /* alignment of components */
+  int section_alignment;  /* alignment of start of section */
+
+  union etree_union *load_base;
+
+  struct lang_output_section_phdr_list *phdrs;
+} lang_output_section_statement_type;
+
+
+typedef struct
+{
+  lang_statement_header_type header;
+} lang_common_statement_type;
+
+typedef struct
+{
+  lang_statement_header_type header;
+} lang_object_symbols_statement_type;
+
+typedef struct
+{
+  lang_statement_header_type header;
+  fill_type fill;
+  int size;
+  asection *output_section;
+} lang_fill_statement_type;
+
+typedef struct
+{
+  lang_statement_header_type header;
+  unsigned int type;
+  union  etree_union *exp;
+  bfd_vma value;
+  asection *output_section;
+  bfd_vma output_vma;
+} lang_data_statement_type;
+
+/* Generate a reloc in the output file.  */
+
+typedef struct
+{
+  lang_statement_header_type header;
+
+  /* Reloc to generate.  */
+  bfd_reloc_code_real_type reloc;
+
+  /* Reloc howto structure.  */
+  reloc_howto_type *howto;
+
+  /* Section to generate reloc against.  Exactly one of section and
+     name must be NULL.  */
+  asection *section;
+
+  /* Name of symbol to generate reloc against.  Exactly one of section
+     and name must be NULL.  */
+  const char *name;
+
+  /* Expression for addend.  */
+  union etree_union *addend_exp;
+
+  /* Resolved addend.  */
+  bfd_vma addend_value;
+
+  /* Output section where reloc should be performed.  */
+  asection *output_section;
+
+  /* VMA within output section.  */
+  bfd_vma output_vma;
+} lang_reloc_statement_type;
+
+typedef struct lang_input_statement_struct
+{
+  lang_statement_header_type header;
+  /* Name of this file.  */
+  const char *filename;
+  /* Name to use for the symbol giving address of text start */
+  /* Usually the same as filename, but for a file spec'd with -l
+     this is the -l switch itself rather than the filename.  */
+  const char *local_sym_name;
+    
+  bfd *the_bfd;
+    
+  boolean closed;
+  file_ptr passive_position;
+    
+  /* Symbol table of the file.  */
+  asymbol **asymbols;
+  unsigned int symbol_count;
+    
+  /* Point to the next file - whatever it is, wanders up and down
+     archives */
+    
+  union lang_statement_union  *next;
+  /* Point to the next file, but skips archive contents */
+  union  lang_statement_union  *next_real_file;
+    
+  boolean is_archive;
+    
+  /* 1 means search a set of directories for this file.  */
+  boolean search_dirs_flag;
+    
+  /* 1 means this is base file of incremental load.
+     Do not load this file's text or data.
+     Also default text_start to after this file's bss. */
+    
+  boolean just_syms_flag;
+
+  /* Whether to search for this entry as a dynamic archive.  */
+  boolean dynamic;
+
+  /* Whether to include the entire contents of an archive.  */
+  boolean whole_archive;
+
+  boolean loaded;
+    
+  /*    unsigned int globals_in_this_file;*/
+  const char *target;
+  boolean real;
+} lang_input_statement_type;
+
+typedef struct
+{
+  lang_statement_header_type header;
+  asection *section;
+  lang_input_statement_type *ifile;
+  
+} lang_input_section_type;
+
+
+typedef struct
+{
+  lang_statement_header_type header;
+  asection *section;
+  union lang_statement_union *file;
+} lang_afile_asection_pair_statement_type;
+
+typedef struct lang_wild_statement_struct
+{
+  lang_statement_header_type header;
+  const char *section_name;
+  boolean sections_sorted;
+  const char *filename;
+  boolean filenames_sorted;
+  boolean keep_sections;
+  const char *exclude_filename;
+  lang_statement_list_type children;
+} lang_wild_statement_type;
+
+typedef struct lang_address_statement_struct
+{
+  lang_statement_header_type header;
+  const  char *section_name;
+  union  etree_union *address;
+} lang_address_statement_type;
+
+typedef struct
+{
+  lang_statement_header_type header;
+  bfd_vma output_offset;
+  size_t size;
+  asection *output_section;
+  fill_type fill;
+} lang_padding_statement_type;
+
+/* A group statement collects a set of libraries together.  The
+   libraries are searched multiple times, until no new undefined
+   symbols are found.  The effect is to search a group of libraries as
+   though they were a single library.  */
+
+typedef struct
+{
+  lang_statement_header_type header;
+  lang_statement_list_type children;
+} lang_group_statement_type;
+
+typedef union lang_statement_union 
+{
+  lang_statement_header_type header;
+  union lang_statement_union *next;
+  lang_wild_statement_type wild_statement;
+  lang_data_statement_type data_statement;
+  lang_reloc_statement_type reloc_statement;
+  lang_address_statement_type address_statement;
+  lang_output_section_statement_type output_section_statement;
+  lang_afile_asection_pair_statement_type afile_asection_pair_statement;
+  lang_assignment_statement_type assignment_statement;
+  lang_input_statement_type input_statement;
+  lang_target_statement_type target_statement;
+  lang_output_statement_type output_statement;
+  lang_input_section_type input_section;
+  lang_common_statement_type common_statement;
+  lang_object_symbols_statement_type object_symbols_statement;
+  lang_fill_statement_type fill_statement;
+  lang_padding_statement_type padding_statement;
+  lang_group_statement_type group_statement;
+} lang_statement_union_type;
+
+/* This structure holds information about a program header, from the
+   PHDRS command in the linker script.  */
+
+struct lang_phdr
+{
+  struct lang_phdr *next;
+  const char *name;
+  unsigned long type;
+  boolean filehdr;
+  boolean phdrs;
+  etree_type *at;
+  etree_type *flags;
+};
+
+/* This structure is used to hold a list of sections which may not
+   cross reference each other.  */
+
+struct lang_nocrossref
+{
+  struct lang_nocrossref *next;
+  const char *name;
+};
+
+/* The list of nocrossref lists.  */
+
+struct lang_nocrossrefs
+{
+  struct lang_nocrossrefs *next;
+  struct lang_nocrossref *list;
+};
+
+extern struct lang_nocrossrefs *nocrossref_list;
+
+extern lang_output_section_statement_type *abs_output_section;
+extern boolean lang_has_input_file;
+extern etree_type *base;
+extern lang_statement_list_type *stat_ptr;
+extern boolean delete_output_file_on_failure;
+
+extern const char *entry_symbol;
+extern boolean entry_from_cmdline;
+
+extern void lang_init PARAMS ((void));
+extern struct memory_region_struct *lang_memory_region_lookup
+  PARAMS ((const char *const));
+extern struct memory_region_struct *lang_memory_region_default
+  PARAMS ((asection *));
+extern void lang_map PARAMS ((void));
+extern void lang_set_flags PARAMS ((lang_memory_region_type *, const char *));
+extern void lang_add_output PARAMS ((const char *, int from_script));
+extern void lang_enter_output_section_statement
+  PARAMS ((const char *output_section_statement_name,
+	   etree_type * address_exp,
+	   enum section_type sectype,
+	   bfd_vma block_value,
+	   etree_type *align,
+	   etree_type *subalign,
+	   etree_type *));
+extern void lang_final PARAMS ((void));
+extern void lang_process PARAMS ((void));
+extern void lang_section_start PARAMS ((const char *, union etree_union *));
+extern void lang_add_entry PARAMS ((const char *, boolean));
+extern void lang_add_target PARAMS ((const char *));
+extern void lang_add_wild
+  PARAMS ((const char *, boolean, const char *, boolean, boolean, const char *));
+extern void lang_add_map PARAMS ((const char *));
+extern void lang_add_fill PARAMS ((int));
+extern lang_assignment_statement_type * lang_add_assignment PARAMS ((union etree_union *));
+extern void lang_add_attribute PARAMS ((enum statement_enum));
+extern void lang_startup PARAMS ((const char *));
+extern void lang_float PARAMS ((enum bfd_boolean));
+extern void lang_leave_output_section_statement
+  PARAMS ((bfd_vma, const char *, struct lang_output_section_phdr_list *));
+extern void lang_abs_symbol_at_end_of PARAMS ((const char *, const char *));
+extern void lang_abs_symbol_at_beginning_of PARAMS ((const char *,
+						     const char *));
+extern void lang_statement_append PARAMS ((struct statement_list *,
+					   union lang_statement_union *,
+					   union lang_statement_union **));
+extern void lang_for_each_input_file
+  PARAMS ((void (*dothis) (lang_input_statement_type *)));
+extern void lang_for_each_file
+  PARAMS ((void (*dothis) (lang_input_statement_type *)));
+extern bfd_vma lang_do_assignments
+  PARAMS ((lang_statement_union_type * s,
+	   lang_output_section_statement_type *output_section_statement,
+	   fill_type fill,
+	   bfd_vma dot));
+
+#define LANG_FOR_EACH_INPUT_STATEMENT(statement)		\
+  extern lang_statement_list_type file_chain;			\
+  lang_input_statement_type *statement;				\
+  for (statement = (lang_input_statement_type *)file_chain.head;\
+       statement != (lang_input_statement_type *)NULL;		\
+       statement = (lang_input_statement_type *)statement->next)\
+  
+extern void lang_process PARAMS ((void));
+extern void ldlang_add_file PARAMS ((lang_input_statement_type *));
+extern lang_output_section_statement_type *lang_output_section_find
+  PARAMS ((const char * const));
+extern lang_input_statement_type *lang_add_input_file
+  PARAMS ((const char *name, lang_input_file_enum_type file_type,
+	   const char *target));
+extern void lang_add_keepsyms_file PARAMS ((const char *filename));
+extern lang_output_section_statement_type *
+  lang_output_section_statement_lookup PARAMS ((const char * const name));
+extern void ldlang_add_undef PARAMS ((const char *const name));
+extern void lang_add_output_format PARAMS ((const char *, const char *,
+					    const char *, int from_script));
+extern void lang_list_init PARAMS ((lang_statement_list_type*));
+extern void lang_add_data PARAMS ((int type, union etree_union *));
+extern void lang_add_reloc
+  PARAMS ((bfd_reloc_code_real_type reloc, reloc_howto_type *howto,
+	   asection *section, const char *name, union etree_union *addend));
+extern void lang_for_each_statement
+  PARAMS ((void (*func) (lang_statement_union_type *)));
+extern PTR stat_alloc PARAMS ((size_t size));
+extern void dprint_statement PARAMS ((lang_statement_union_type *, int));
+extern bfd_vma lang_size_sections
+  PARAMS ((lang_statement_union_type *s,
+	   lang_output_section_statement_type *output_section_statement,
+	   lang_statement_union_type **prev, fill_type fill,
+	   bfd_vma dot, boolean relax));
+extern void lang_enter_group PARAMS ((void));
+extern void lang_leave_group PARAMS ((void));
+extern void wild_doit
+  PARAMS ((lang_statement_list_type *ptr, asection *section,
+	   lang_output_section_statement_type *output,
+	   lang_input_statement_type *file));
+extern void lang_new_phdr
+  PARAMS ((const char *, etree_type *, boolean, boolean, etree_type *,
+	   etree_type *));
+extern void lang_add_nocrossref PARAMS ((struct lang_nocrossref *));
+extern void lang_enter_overlay PARAMS ((etree_type *, etree_type *, int));
+extern void lang_enter_overlay_section PARAMS ((const char *));
+extern void lang_leave_overlay_section
+  PARAMS ((bfd_vma, struct lang_output_section_phdr_list *));
+extern void lang_leave_overlay
+  PARAMS ((bfd_vma, const char *, struct lang_output_section_phdr_list *));
+
+extern struct bfd_elf_version_tree *lang_elf_version_info;
+
+extern struct bfd_elf_version_expr *lang_new_vers_regex
+  PARAMS ((struct bfd_elf_version_expr *, const char *, const char *));
+extern struct bfd_elf_version_tree *lang_new_vers_node
+  PARAMS ((struct bfd_elf_version_expr *, struct bfd_elf_version_expr *));
+extern struct bfd_elf_version_deps *lang_add_vers_depend
+  PARAMS ((struct bfd_elf_version_deps *, const char *));
+extern void lang_register_vers_node
+  PARAMS ((const char *, struct bfd_elf_version_tree *,
+	   struct bfd_elf_version_deps *));
+
+#endif