/* BFD back-end data structures for ELF files.
Copyright 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001,
- 2002, 2003, 2004, 2005, 2006 Free Software Foundation, Inc.
+ 2002, 2003, 2004, 2005, 2006, 2007 Free Software Foundation, Inc.
Written by Cygnus Support.
This file is part of BFD, the Binary File Descriptor library.
};
/* Structures used by the eh_frame optimization code. */
-struct cie_header
-{
- unsigned int length;
- unsigned int id;
-};
-
-struct cie
-{
- struct cie_header hdr;
- unsigned char version;
- char augmentation[20];
- bfd_vma code_align;
- bfd_signed_vma data_align;
- bfd_vma ra_column;
- bfd_vma augmentation_size;
- struct elf_link_hash_entry *personality;
- unsigned char per_encoding;
- unsigned char lsda_encoding;
- unsigned char fde_encoding;
- unsigned char initial_insn_length;
- unsigned char make_relative;
- unsigned char make_lsda_relative;
- unsigned char initial_instructions[50];
-};
-
struct eh_cie_fde
{
/* For FDEs, this points to the CIE used. */
struct eh_frame_sec_info
{
unsigned int count;
- unsigned int alloced;
struct eh_cie_fde entry[1];
};
bfd_vma fde;
};
+struct htab;
+
struct eh_frame_hdr_info
{
- struct cie last_cie;
- asection *last_cie_sec;
- struct eh_cie_fde *last_cie_inf;
+ struct htab *cies;
asection *hdr_sec;
unsigned int fde_count, array_count;
struct eh_frame_array_ent *array;
PRETEND = 2
};
+typedef asection * (*elf_gc_mark_hook_fn)
+ (asection *, struct bfd_link_info *, Elf_Internal_Rela *,
+ struct elf_link_hash_entry *, Elf_Internal_Sym *);
+
struct elf_backend_data
{
/* The architecture for this backend. */
/* The ELF machine code (EM_xxxx) for this backend. */
int elf_machine_code;
+ /* EI_OSABI. */
+ int elf_osabi;
+
/* The maximum page size for this backend. */
bfd_vma maxpagesize;
bfd_boolean (*check_directives)
(bfd *abfd, struct bfd_link_info *info);
+ /* The AS_NEEDED_CLEANUP function is called once per --as-needed
+ input file that was not needed by the add_symbols phase of the
+ ELF backend linker. The function must undo any target specific
+ changes in the symbol hash table. */
+ bfd_boolean (*as_needed_cleanup)
+ (bfd *abfd, struct bfd_link_info *info);
+
/* The ADJUST_DYNAMIC_SYMBOL function is called by the ELF backend
linker for every symbol which is defined by a dynamic object and
referenced by a regular object. This is called after all the
/* This function is called during section gc to discover the section a
particular relocation refers to. */
- asection * (*gc_mark_hook)
- (asection *sec, struct bfd_link_info *, Elf_Internal_Rela *,
- struct elf_link_hash_entry *h, Elf_Internal_Sym *);
+ elf_gc_mark_hook_fn gc_mark_hook;
+
+ /* This function, if defined, is called after the first gc marking pass
+ to allow the backend to mark additional sections. */
+ bfd_boolean (*gc_mark_extra_sections)
+ (struct bfd_link_info *info, elf_gc_mark_hook_fn gc_mark_hook);
/* This function, if defined, is called during the sweep phase of gc
in order that a backend might update any data structures it might
(asection *, Elf_Internal_Rela *);
/* This function, if defined, is called when an NT_PRSTATUS note is found
- in a core file. */
+ in a core file. */
bfd_boolean (*elf_backend_grok_prstatus)
(bfd *, Elf_Internal_Note *);
/* This function, if defined, is called when an NT_PSINFO or NT_PRPSINFO
- note is found in a core file. */
+ note is found in a core file. */
bfd_boolean (*elf_backend_grok_psinfo)
(bfd *, Elf_Internal_Note *);
+ /* This function, if defined, is called to write a note to a corefile. */
+ char *(*elf_backend_write_core_note)
+ (bfd *abfd, char *buf, int *bufsiz, int note_type, ...);
+
/* Functions to print VMAs. Special code to handle 64 bit ELF files. */
void (* elf_backend_sprintf_vma)
(bfd *, char *, bfd_vma);
/* This function, if defined, may write out the given section.
Returns TRUE if it did so and FALSE if the caller should. */
bfd_boolean (*elf_backend_write_section)
- (bfd *, asection *, bfd_byte *);
+ (bfd *, struct bfd_link_info *, asection *, bfd_byte *);
/* The level of IRIX compatibility we're striving for.
MIPS ELF specific function. */
unsigned can_refcount : 1;
unsigned want_got_sym : 1;
unsigned want_dynbss : 1;
- /* Targets which do not support physical addressing often require
- that the p_paddr field in the section header to be set to zero.
- This field indicates whether this behavior is required. */
+
+ /* Targets which do not support physical addressing often require
+ that the p_paddr field in the section header to be set to zero.
+ This field indicates whether this behavior is required. */
unsigned want_p_paddr_set_to_zero : 1;
+
+ /* True if an object file lacking a .note.GNU-stack section
+ should be assumed to be requesting exec stack. At least one
+ other file in the link needs to have a .note.GNU-stack section
+ for a PT_GNU_STACK segment to be created. */
+ unsigned default_execstack : 1;
};
/* Information stored for each BFD section in an ELF file. This
struct bfd_symbol *id;
} group;
- /* Optional information about section group; NULL if it doesn't
- belongs to any section group. */
+ /* For a member of a group, points to the SHT_GROUP section.
+ NULL for the SHT_GROUP section itself and non-group sections. */
asection *sec_group;
- /* A linked list of sections in the group. Circular when used by
- the linker. */
+ /* A linked list of member sections in the group. Circular when used by
+ the linker. For the SHT_GROUP section, points at first member. */
asection *next_in_group;
/* A pointer used for various section optimizations. */
#define elf_next_in_group(sec) (elf_section_data(sec)->next_in_group)
#define elf_sec_group(sec) (elf_section_data(sec)->sec_group)
-/* Return TRUE if section has been discarded. */
-#define elf_discarded_section(sec) \
- (!bfd_is_abs_section (sec) \
- && bfd_is_abs_section ((sec)->output_section) \
- && (sec)->sec_info_type != ELF_INFO_TYPE_MERGE \
- && (sec)->sec_info_type != ELF_INFO_TYPE_JUST_SYMS)
-
#define xvec_get_elf_backend_data(xvec) \
((struct elf_backend_data *) (xvec)->backend_data)
MIPS ELF linker. FIXME: We should figure out some way to only
include this field for a MIPS ELF target. */
asection **local_stubs;
+ asection **local_call_stubs;
/* Used to determine if PT_GNU_EH_FRAME segment header should be
created. */
/* Used to determine if the e_flags field has been initialized */
bfd_boolean flags_init;
+
+ /* Symbol buffer. */
+ void *symbuf;
};
#define elf_tdata(bfd) ((bfd) -> tdata.elf_obj_data)
extern bfd_boolean bfd_elf_is_group_section
(bfd *, const struct bfd_section *);
extern void _bfd_elf_section_already_linked
- (bfd *, struct bfd_section *);
+ (bfd *, struct bfd_section *, struct bfd_link_info *);
extern void bfd_elf_set_group_contents
(bfd *, asection *, void *);
extern asection *_bfd_elf_check_kept_section
- (asection *);
+ (asection *, struct bfd_link_info *);
extern void _bfd_elf_link_just_syms
(asection *, struct bfd_link_info *);
extern bfd_boolean _bfd_elf_copy_private_header_data
(struct elf_link_hash_entry *, struct bfd_link_info *, bfd_boolean);
extern bfd_boolean bfd_elf_match_symbols_in_sections
- (asection *sec1, asection *sec2);
+ (asection *, asection *, struct bfd_link_info *);
+
+extern void bfd_elf_perform_complex_relocation
+ (bfd * output_bfd ATTRIBUTE_UNUSED,
+ struct bfd_link_info * info,
+ bfd * input_bfd,
+ asection * input_section,
+ bfd_byte * contents,
+ Elf_Internal_Rela * rel,
+ Elf_Internal_Sym * local_syms,
+ asection ** local_sections);
extern bfd_boolean _bfd_elf_setup_sections
(bfd *);
+extern void _bfd_elf_set_osabi (bfd * , struct bfd_link_info *);
+
extern const bfd_target *bfd_elf32_object_p
(bfd *);
extern const bfd_target *bfd_elf32_core_file_p
(struct bfd_link_info *, bfd *, long);
extern void bfd_elf_link_mark_dynamic_symbol
- (struct bfd_link_info *, struct elf_link_hash_entry *);
+ (struct bfd_link_info *, struct elf_link_hash_entry *,
+ Elf_Internal_Sym *);
extern bfd_boolean _bfd_elf_close_and_cleanup
(bfd *);
else if (info->unresolved_syms_in_objects == RM_IGNORE \
&& ELF_ST_VISIBILITY (h->other) == STV_DEFAULT) \
; \
- else \
+ else if (!info->relocatable) \
{ \
bfd_boolean err; \
err = (info->unresolved_syms_in_objects == RM_GENERATE_ERROR \
projects / deliverable / binutils-gdb.git / blobdiff