/* BFD back-end data structures for ELF files.
- Copyright (C) 1992-2016 Free Software Foundation, Inc.
+ Copyright (C) 1992-2019 Free Software Foundation, Inc.
Written by Cygnus Support.
This file is part of BFD, the Binary File Descriptor library.
struct bfd_link_hash_entry root;
/* Symbol index in output file. This is initialized to -1. It is
- set to -2 if the symbol is used by a reloc. */
+ set to -2 if the symbol is used by a reloc. It is set to -3 if
+ this symbol is defined in a discarded section. */
long indx;
/* Symbol index as a dynamic symbol. Initialized to -1, and remains
/* Symbol is defined by a shared library with non-default visibility
in a read/write section. */
unsigned int protected_def : 1;
+ /* Symbol is __start_SECNAME or __stop_SECNAME to mark section
+ SECNAME. */
+ unsigned int start_stop : 1;
+ /* Symbol is or was a weak defined symbol from a dynamic object with
+ a strong defined symbol alias. U.ALIAS points to a list of aliases,
+ the definition having is_weakalias clear. */
+ unsigned int is_weakalias : 1;
/* String table index in .dynstr if this is a dynamic symbol. */
unsigned long dynstr_index;
union
{
- /* If this is a weak defined symbol from a dynamic object, this
- field points to a defined symbol with the same value, if there is
- one. Otherwise it is NULL. */
- struct elf_link_hash_entry *weakdef;
+ /* Points to a circular list of non-function symbol aliases. */
+ struct elf_link_hash_entry *alias;
/* Hash value of the name computed using the ELF hash function.
Used part way through size_dynamic_sections, after we've finished
- with weakdefs. */
+ with aliases. */
unsigned long elf_hash_value;
} u;
struct bfd_elf_version_tree *vertree;
} verinfo;
- struct elf_link_virtual_table_entry *vtable;
+ union
+ {
+ /* For __start_SECNAME and __stop_SECNAME symbols, record the first
+ input section whose section name is SECNAME. */
+ asection *start_stop_section;
+
+ /* Vtable information. */
+ struct elf_link_virtual_table_entry *vtable;
+ } u2;
};
+/* Return the strong definition for a weak symbol with aliases. */
+
+static inline struct elf_link_hash_entry *
+weakdef (struct elf_link_hash_entry *h)
+{
+ while (h->is_weakalias)
+ h = h->u.alias;
+ return h;
+}
+
/* Will references to this symbol always reference the symbol
in this object? */
#define SYMBOL_REFERENCES_LOCAL(INFO, H) \
#define SYMBOL_CALLS_LOCAL(INFO, H) \
_bfd_elf_symbol_refs_local_p (H, INFO, 1)
+/* Whether an undefined weak symbol should resolve to its link-time
+ value, even in PIC or PIE objects. */
+#define UNDEFWEAK_NO_DYNAMIC_RELOC(INFO, H) \
+ ((H)->root.type == bfd_link_hash_undefweak \
+ && (ELF_ST_VISIBILITY ((H)->other) != STV_DEFAULT \
+ || (INFO)->dynamic_undefined_weak == 0))
+
/* Common symbols that are turned into definitions don't have the
DEF_REGULAR flag set, so they might appear to be undefined.
Symbols defined in linker scripts also don't have DEF_REGULAR set. */
.eh_frame input section that contains the CIE. */
union {
struct cie *full_cie;
- struct eh_cie_fde *merged_with;
- asection *sec;
+ struct eh_cie_fde *merged_with;
+ asection *sec;
} u;
/* The offset of the personality data from the start of the CIE,
or 0 if the CIE doesn't have any. */
unsigned int personality_offset : 8;
+ /* Length of augmentation. aug_str_len is the length of the
+ string including null terminator. aug_data_len is the length
+ of the rest up to the initial insns. */
+ unsigned int aug_str_len : 3;
+ unsigned int aug_data_len : 5;
+
/* True if we have marked relocations associated with this CIE. */
unsigned int gc_mark : 1;
make_per_encoding_relative is. */
unsigned int per_encoding_relative : 1;
+ /* True if the CIE contains personality data aligned to a
+ multiple of eight bytes. */
+ unsigned int per_encoding_aligned8 : 1;
+
/* True if we need to add an 'R' (FDE encoding) entry to the
CIE's augmentation data. */
unsigned int add_fde_encoding : 1;
unsigned int merged : 1;
/* Unused bits. */
- unsigned int pad1 : 18;
+ unsigned int pad1 : 9;
} cie;
} u;
unsigned int reloc_index;
{
AARCH64_ELF_DATA = 1,
ALPHA_ELF_DATA,
+ ARC_ELF_DATA,
ARM_ELF_DATA,
AVR_ELF_DATA,
BFIN_ELF_DATA,
CRIS_ELF_DATA,
+ CSKY_ELF_DATA,
FRV_ELF_DATA,
HPPA32_ELF_DATA,
HPPA64_ELF_DATA,
OR1K_ELF_DATA,
PPC32_ELF_DATA,
PPC64_ELF_DATA,
+ PRU_ELF_DATA,
S390_ELF_DATA,
SH_ELF_DATA,
SPARC_ELF_DATA,
TIC6X_ELF_DATA,
X86_64_ELF_DATA,
XTENSA_ELF_DATA,
- XGATE_ELF_DATA,
TILEGX_ELF_DATA,
TILEPRO_ELF_DATA,
+ RISCV_ELF_DATA,
GENERIC_ELF_DATA
};
when linking against or generating a shared object. */
bfd_boolean dynamic_sections_created;
+ /* Whether dynamic relocations are present. */
+ bfd_boolean dynamic_relocs;
+
/* True if this target has relocatable executables, so needs dynamic
section symbols. */
bfd_boolean is_relocatable_executable;
union gotplt_union init_got_offset;
union gotplt_union init_plt_offset;
- /* The number of symbols found in the link which must be put into
- the .dynsym section. */
+ /* The number of symbols found in the link which is intended for the
+ mandatory DT_SYMTAB tag (.dynsym section) in .dynamic section. */
bfd_size_type dynsymcount;
+ bfd_size_type local_dynsymcount;
/* The string table of dynamic symbols, which becomes the .dynstr
section. */
asection *srelgot;
asection *splt;
asection *srelplt;
+ asection *sdynbss;
+ asection *srelbss;
+ asection *sdynrelro;
+ asection *sreldynrelro;
asection *igotplt;
asection *iplt;
asection *irelplt;
#define elf_hash_table_id(table) ((table) -> hash_table_id)
/* Returns TRUE if the hash table is a struct elf_link_hash_table. */
-#define is_elf_hash_table(htab) \
+#define is_elf_hash_table(htab) \
(((struct bfd_link_hash_table *) (htab))->type == bfd_link_elf_hash_table)
/* Used by bfd_sym_from_r_symndx to cache a small number of local
};
#define elf_symbol_from(ABFD,S) \
- (((S)->the_bfd->xvec->flavour == bfd_target_elf_flavour \
- && (S)->the_bfd->tdata.elf_obj_data != 0) \
- ? (elf_symbol_type *) (S) \
- : 0)
+ (((S)->the_bfd != NULL \
+ && (S)->the_bfd->xvec->flavour == bfd_target_elf_flavour \
+ && (S)->the_bfd->tdata.elf_obj_data != 0) \
+ ? (elf_symbol_type *) (S) \
+ : 0)
enum elf_reloc_type_class {
reloc_class_normal,
reloc_class_relative,
- reloc_class_plt,
reloc_class_copy,
- reloc_class_ifunc
+ reloc_class_ifunc,
+ reloc_class_plt
};
struct elf_reloc_cookie
(asection *, struct bfd_link_info *, Elf_Internal_Rela *,
struct elf_link_hash_entry *, Elf_Internal_Sym *);
+enum elf_property_kind
+ {
+ /* A new property. */
+ property_unknown = 0,
+ /* A property ignored by backend. */
+ property_ignored,
+ /* A corrupt property reported by backend. */
+ property_corrupt,
+ /* A property should be removed due to property merge. */
+ property_remove,
+ /* A property which is a number. */
+ property_number
+ };
+
+typedef struct elf_property
+{
+ unsigned int pr_type;
+ unsigned int pr_datasz;
+ union
+ {
+ /* For property_number, this is a number. */
+ bfd_vma number;
+ /* Add a new one if elf_property_kind is updated. */
+ } u;
+ enum elf_property_kind pr_kind;
+} elf_property;
+
+typedef struct elf_property_list
+{
+ struct elf_property_list *next;
+ struct elf_property property;
+} elf_property_list;
+
+struct bfd_elf_section_reloc_data;
+
struct elf_backend_data
{
/* The architecture for this backend. */
/* The ELF machine code (EM_xxxx) for this backend. */
int elf_machine_code;
- /* EI_OSABI. */
+ /* EI_OSABI. */
int elf_osabi;
/* The maximum page size for this backend. */
/* The common page size for this backend. */
bfd_vma commonpagesize;
+ /* The value of commonpagesize to use when -z relro for this backend. */
+ bfd_vma relropagesize;
+
/* The BFD flags applied to sections created for dynamic linking. */
flagword dynamic_sec_flags;
const void *arch_data;
/* A function to translate an ELF RELA relocation to a BFD arelent
- structure. */
- void (*elf_info_to_howto)
+ structure. Returns TRUE upon success, FALSE otherwise. */
+ bfd_boolean (*elf_info_to_howto)
(bfd *, arelent *, Elf_Internal_Rela *);
/* A function to translate an ELF REL relocation to a BFD arelent
- structure. */
- void (*elf_info_to_howto_rel)
+ structure. Returns TRUE upon success, FALSE otherwise. */
+ bfd_boolean (*elf_info_to_howto_rel)
(bfd *, arelent *, Elf_Internal_Rela *);
/* A function to determine whether a symbol is global when
bfd_boolean (*elf_backend_modify_program_headers)
(bfd *, struct bfd_link_info *);
+ /* This function is called to see if the PHDR header should be
+ checked for validity. */
+ bfd_boolean (*elf_backend_allow_non_load_phdr)
+ (bfd *, const Elf_Internal_Phdr *, unsigned);
+
/* This function is called before section garbage collection to
mark entry symbol sections. */
void (*gc_keep)
bfd_boolean (*gc_mark_extra_sections)
(struct bfd_link_info *, elf_gc_mark_hook_fn);
- /* This function, if defined, is called during the sweep phase of gc
- in order that a backend might update any data structures it might
- be maintaining. */
- bfd_boolean (*gc_sweep_hook)
- (bfd *, struct bfd_link_info *, asection *, const Elf_Internal_Rela *);
-
/* This function, if defined, is called after the ELF headers have
been created. This allows for things like the OS and ABI versions
to be changed. */
bfd_boolean (*) (void *, const char *, Elf_Internal_Sym *, asection *,
struct elf_link_hash_entry *));
+ /* Filter what symbols of the output file to include in the import
+ library if one is created. */
+ unsigned int (*elf_backend_filter_implib_symbols)
+ (bfd *, struct bfd_link_info *, asymbol **, long);
+
/* Copy any information related to dynamic linking from a pre-existing
symbol to a newly created symbol. Also called to copy flags and
other back-end info to a weakdef, in which case the symbol is not
(bfd *, asection *, Elf_Internal_Shdr *, Elf_Internal_Rela *,
struct elf_link_hash_entry **);
+ /* Update relocations. It is allowed to change the number and the order.
+ In such a case hashes should be invalidated. */
+ void (*elf_backend_update_relocs)
+ (asection *, struct bfd_elf_section_reloc_data *);
+
/* Count relocations. Not called for relocatable links
or if all relocs are being preserved in the output. */
unsigned int (*elf_backend_count_relocs)
bfd_boolean (*elf_backend_grok_psinfo)
(bfd *, Elf_Internal_Note *);
+ /* This function, if defined, is called when a "FreeBSD" NT_PRSTATUS
+ note is found in a core file. */
+ bfd_boolean (*elf_backend_grok_freebsd_prstatus)
+ (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, ...);
that can't be determined for some reason. The default definition
goes by the bfd's EI_CLASS. */
unsigned int (*elf_backend_eh_frame_address_size)
- (bfd *, asection *);
+ (bfd *, const asection *);
/* These functions tell elf-eh-frame whether to attempt to turn
absolute or lsda encodings into pc-relative ones. The default
(bfd *);
reloc_howto_type *(*elf_backend_mips_rtype_to_howto)
- (unsigned int, bfd_boolean);
+ (bfd *, unsigned int, bfd_boolean);
/* The swapping table to use when dealing with ECOFF information.
Used for the MIPS ELF .mdebug section. */
bfd_size_type (*maybe_function_sym) (const asymbol *sym, asection *sec,
bfd_vma *code_off);
- /* Return the section which RELOC_SEC applies to. */
- asection *(*get_reloc_section) (asection *reloc_sec);
+ /* Given NAME, the name of a relocation section stripped of its
+ .rel/.rela prefix, return the section in ABFD to which the
+ relocations apply. */
+ asection *(*get_reloc_section) (bfd *abfd, const char *name);
+
+ /* Called to set the sh_flags, sh_link and sh_info fields of OSECTION which
+ has a type >= SHT_LOOS. Returns TRUE if the fields were initialised,
+ FALSE otherwise. Can be called multiple times for a given section,
+ until it returns TRUE. Most of the times it is called ISECTION will be
+ set to an input section that might be associated with the output section.
+ The last time that it is called, ISECTION will be set to NULL. */
+ bfd_boolean (*elf_backend_copy_special_section_fields)
+ (const bfd *ibfd, bfd *obfd, const Elf_Internal_Shdr *isection,
+ Elf_Internal_Shdr *osection);
/* Used to handle bad SHF_LINK_ORDER input. */
- bfd_error_handler_type link_order_error_handler;
+ void (*link_order_error_handler) (const char *, ...);
/* Name of the PLT relocation section. */
const char *relplt_name;
or give an error and return FALSE. */
bfd_boolean (*obj_attrs_handle_unknown) (bfd *, int);
+ /* Parse GNU properties. Return the property kind. If the property
+ is corrupt, issue an error message and return property_corrupt. */
+ enum elf_property_kind (*parse_gnu_properties) (bfd *, unsigned int,
+ bfd_byte *,
+ unsigned int);
+
+ /* Merge GNU properties. Return TRUE if property is updated. */
+ bfd_boolean (*merge_gnu_properties) (struct bfd_link_info *, bfd *,
+ elf_property *, elf_property *);
+
+ /* Set up GNU properties. */
+ bfd *(*setup_gnu_properties) (struct bfd_link_info *);
+
+ /* Fix up GNU properties. */
+ void (*fixup_gnu_properties) (struct bfd_link_info *,
+ elf_property_list **);
+
/* Encoding used for compact EH tables. */
int (*compact_eh_encoding) (struct bfd_link_info *);
/* This is non-zero if static TLS segments require a special alignment. */
unsigned static_tls_alignment;
- /* Alignment for the PT_GNU_STACK segment. */
+ /* Alignment for the PT_GNU_STACK segment. */
unsigned stack_align;
+ /* Flag bits to assign to a section of type SHT_STRTAB. */
+ unsigned long elf_strtab_flags;
+
/* This is TRUE if the linker should act like collect and gather
global constructors and destructors by name. This is TRUE for
MIPS ELF because the Irix 5 tools can not handle the .init
backend relocate_section routine for relocatable linking. */
unsigned rela_normal : 1;
+ /* Set if DT_REL/DT_RELA/DT_RELSZ/DT_RELASZ should not include PLT
+ relocations. */
+ unsigned dtrel_excludes_plt : 1;
+
/* TRUE if addresses "naturally" sign extend. This is used when
swapping in from Elf32 when BFD64. */
unsigned sign_extend_vma : 1;
unsigned can_refcount : 1;
unsigned want_got_sym : 1;
unsigned want_dynbss : 1;
+ unsigned want_dynrelro : 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. */
unsigned want_p_paddr_set_to_zero : 1;
+ /* Target has broken hardware and/or kernel that requires pages not
+ to be mapped twice with different permissions. */
+ unsigned no_page_alias : 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
/* Address of protected data defined in the shared library may be
external, i.e., due to copy relocation. */
unsigned extern_protected_data : 1;
+
+ /* True if `_bfd_elf_link_renumber_dynsyms' must be called even for
+ static binaries. */
+ unsigned always_renumber_dynsyms : 1;
+
+ /* True if the 32-bit Linux PRPSINFO structure's `pr_uid' and `pr_gid'
+ members use a 16-bit data type. */
+ unsigned linux_prpsinfo32_ugid16 : 1;
+
+ /* True if the 64-bit Linux PRPSINFO structure's `pr_uid' and `pr_gid'
+ members use a 16-bit data type. */
+ unsigned linux_prpsinfo64_ugid16 : 1;
};
/* Information about reloc sections associated with a bfd_elf_section_data
#define elf_linked_to_section(sec) (elf_section_data(sec)->linked_to)
#define elf_section_type(sec) (elf_section_data(sec)->this_hdr.sh_type)
#define elf_section_flags(sec) (elf_section_data(sec)->this_hdr.sh_flags)
+#define elf_section_info(sec) (elf_section_data(sec)->this_hdr.sh_info)
#define elf_group_name(sec) (elf_section_data(sec)->group.name)
#define elf_group_id(sec) (elf_section_data(sec)->group.id)
#define elf_next_in_group(sec) (elf_section_data(sec)->next_in_group)
/* The value of an object attribute. The type indicates whether the attribute
holds and integer, a string, or both. It can also indicate that there can
- be no default (i.e. all values must be written to file, even zero). */
+ be no default (i.e. all values must be written to file, even zero), or
+ that the value is in error and should not be written to file. */
typedef struct obj_attribute
{
#define ATTR_TYPE_FLAG_INT_VAL (1 << 0)
#define ATTR_TYPE_FLAG_STR_VAL (1 << 1)
#define ATTR_TYPE_FLAG_NO_DEFAULT (1 << 2)
+#define ATTR_TYPE_FLAG_ERROR (1 << 3)
#define ATTR_TYPE_HAS_INT_VAL(TYPE) ((TYPE) & ATTR_TYPE_FLAG_INT_VAL)
#define ATTR_TYPE_HAS_STR_VAL(TYPE) ((TYPE) & ATTR_TYPE_FLAG_STR_VAL)
#define ATTR_TYPE_HAS_NO_DEFAULT(TYPE) ((TYPE) & ATTR_TYPE_FLAG_NO_DEFAULT)
+#define ATTR_TYPE_HAS_ERROR(TYPE) ((TYPE) & ATTR_TYPE_FLAG_ERROR)
int type;
unsigned int i;
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)
- };
+{
+ 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;
+ 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. */
/* Symbol buffer. */
void *symbuf;
+ /* List of GNU properties. Will be updated by setup_gnu_properties
+ after all input GNU properties are merged for output. */
+ elf_property_list *properties;
+
obj_attribute known_obj_attributes[2][NUM_KNOWN_OBJ_ATTRIBUTES];
obj_attribute_list *other_obj_attributes[2];
Elf_Internal_Shdr **group_sect_ptr;
int num_group;
+ /* Index into group_sect_ptr, updated by setup_group when finding a
+ section's group. Used to optimize subsequent group searches. */
+ unsigned int group_search_offset;
+
unsigned int symtab_section, dynsymtab_section;
unsigned int dynversym_section, dynverdef_section, dynverref_section;
/* An identifier used to distinguish different target
specific extensions to this structure. */
- enum elf_target_id object_id;
+ ENUM_BITFIELD (elf_target_id) object_id : 6;
/* Whether a dyanmic object was specified normally on the linker
command line, or was specified when --as-needed was in effect,
or was found via a DT_NEEDED entry. */
- enum dynamic_lib_link_class dyn_lib_class;
+ ENUM_BITFIELD (dynamic_lib_link_class) dyn_lib_class : 4;
+
+ /* Whether if the bfd contains symbols that have the STT_GNU_IFUNC
+ symbol type or STB_GNU_UNIQUE binding. */
+ ENUM_BITFIELD (elf_gnu_symbols) has_gnu_symbols : 3;
+
+ /* Whether if the bfd contains the GNU_PROPERTY_NO_COPY_ON_PROTECTED
+ property. */
+ unsigned int has_no_copy_on_protected : 1;
/* Irix 5 often screws up the symbol table, sorting local symbols
after global symbols. This flag is set if the symbol table in
this BFD appears to be screwed up. If it is, we ignore the
sh_info field in the symbol table header, and always read all the
symbols. */
- bfd_boolean bad_symtab;
-
- enum elf_gnu_symbols has_gnu_symbols;
+ unsigned int bad_symtab : 1;
/* Information grabbed from an elf core file. */
struct core_elf_obj_tdata *core;
(elf_known_obj_attributes (bfd) [OBJ_ATTR_PROC])
#define elf_other_obj_attributes_proc(bfd) \
(elf_other_obj_attributes (bfd) [OBJ_ATTR_PROC])
+#define elf_properties(bfd) (elf_tdata (bfd) -> properties)
+#define elf_has_no_copy_on_protected(bfd) \
+ (elf_tdata(bfd) -> has_no_copy_on_protected)
\f
extern void _bfd_elf_swap_verdef_in
(bfd *, const Elf_External_Verdef *, Elf_Internal_Verdef *);
(bfd *, void *, asymbol *, bfd_print_symbol_type);
extern unsigned int _bfd_elf_eh_frame_address_size
- (bfd *, asection *);
+ (bfd *, const asection *);
extern bfd_byte _bfd_elf_encode_eh_address
(bfd *abfd, struct bfd_link_info *info, asection *osec, bfd_vma offset,
asection *loc_sec, bfd_vma loc_offset, bfd_vma *encoded);
struct elf_link_hash_entry *);
extern void _bfd_elf_link_hash_hide_symbol
(struct bfd_link_info *, struct elf_link_hash_entry *, bfd_boolean);
+extern void _bfd_elf_link_hide_symbol
+ (bfd *, struct bfd_link_info *, struct bfd_link_hash_entry *);
extern bfd_boolean _bfd_elf_link_hash_fixup_symbol
(struct bfd_link_info *, struct elf_link_hash_entry *);
extern bfd_boolean _bfd_elf_link_hash_table_init
(bfd *, asection *, struct bfd_link_info *);
extern void bfd_elf_set_group_contents
(bfd *, asection *, void *);
+extern unsigned int _bfd_elf_filter_global_symbols
+ (bfd *, struct bfd_link_info *, asymbol **, long);
extern asection *_bfd_elf_check_kept_section
(asection *, struct bfd_link_info *);
#define _bfd_elf_link_just_syms _bfd_generic_link_just_syms
extern const struct bfd_elf_special_section *_bfd_elf_get_sec_type_attr
(bfd *, asection *);
+extern bfd_boolean _bfd_elf_link_hide_sym_by_version
+ (struct bfd_link_info *, struct elf_link_hash_entry *);
+
/* If the target doesn't have reloc handling written yet: */
-extern void _bfd_elf_no_info_to_howto
+extern bfd_boolean _bfd_elf_no_info_to_howto
(bfd *, arelent *, Elf_Internal_Rela *);
extern bfd_boolean bfd_section_from_shdr
(void);
extern void _bfd_elf_strtab_free
(struct elf_strtab_hash *);
-extern bfd_size_type _bfd_elf_strtab_add
+extern size_t _bfd_elf_strtab_add
(struct elf_strtab_hash *, const char *, bfd_boolean);
extern void _bfd_elf_strtab_addref
- (struct elf_strtab_hash *, bfd_size_type);
+ (struct elf_strtab_hash *, size_t);
extern void _bfd_elf_strtab_delref
- (struct elf_strtab_hash *, bfd_size_type);
+ (struct elf_strtab_hash *, size_t);
extern unsigned int _bfd_elf_strtab_refcount
- (struct elf_strtab_hash *, bfd_size_type);
+ (struct elf_strtab_hash *, size_t);
extern void _bfd_elf_strtab_clear_all_refs
- (struct elf_strtab_hash *tab);
-extern void _bfd_elf_strtab_restore_size
- (struct elf_strtab_hash *, bfd_size_type);
+ (struct elf_strtab_hash *);
+extern void *_bfd_elf_strtab_save
+ (struct elf_strtab_hash *);
+extern void _bfd_elf_strtab_restore
+ (struct elf_strtab_hash *, void *);
extern bfd_size_type _bfd_elf_strtab_size
(struct elf_strtab_hash *);
extern bfd_size_type _bfd_elf_strtab_offset
- (struct elf_strtab_hash *, bfd_size_type);
+ (struct elf_strtab_hash *, size_t);
extern bfd_boolean _bfd_elf_strtab_emit
(bfd *, struct elf_strtab_hash *);
extern void _bfd_elf_strtab_finalize
extern bfd_boolean _bfd_elf_discard_section_eh_frame
(bfd *, struct bfd_link_info *, asection *,
bfd_boolean (*) (bfd_vma, void *), struct elf_reloc_cookie *);
+extern bfd_boolean _bfd_elf_adjust_eh_frame_global_symbol
+ (struct elf_link_hash_entry *, void *);
extern bfd_boolean _bfd_elf_discard_section_eh_frame_hdr
(bfd *, struct bfd_link_info *);
extern bfd_vma _bfd_elf_eh_frame_section_offset
extern bfd_boolean _bfd_elf_link_create_dynamic_sections
(bfd *, struct bfd_link_info *);
-extern bfd_boolean _bfd_elf_link_omit_section_dynsym
+extern bfd_boolean _bfd_elf_omit_section_dynsym_default
+ (bfd *, struct bfd_link_info *, asection *);
+extern bfd_boolean _bfd_elf_omit_section_dynsym_all
(bfd *, struct bfd_link_info *, asection *);
extern bfd_boolean _bfd_elf_create_dynamic_sections
(bfd *, struct bfd_link_info *);
extern bfd_boolean _bfd_elf_setup_sections
(bfd *);
+extern struct bfd_link_hash_entry *bfd_elf_define_start_stop
+ (struct bfd_link_info *, const char *, asection *);
+
extern void _bfd_elf_post_process_headers (bfd * , struct bfd_link_info *);
extern const bfd_target *bfd_elf32_object_p
(bfd *, struct bfd_link_info *);
extern bfd_boolean _bfd_elf_add_dynamic_entry
(struct bfd_link_info *, bfd_vma, bfd_vma);
+extern bfd_boolean _bfd_elf_link_check_relocs
+ (bfd *, struct bfd_link_info *);
extern bfd_boolean bfd_elf_link_record_dynamic_symbol
(struct bfd_link_info *, struct elf_link_hash_entry *);
extern bfd_size_type _bfd_elf_maybe_function_sym (const asymbol *, asection *,
bfd_vma *);
-extern asection *_bfd_elf_get_reloc_section (asection *);
+extern asection *_bfd_elf_plt_get_reloc_section (bfd *, const char *);
extern int bfd_elf_get_default_section_type (flagword);
extern Elf_Internal_Phdr * _bfd_elf_find_segment_containing_section
(bfd * abfd, asection * section);
-/* Exported interface for writing elf corefile notes. */
+/* PowerPC @tls opcode transform/validate. */
+extern unsigned int _bfd_elf_ppc_at_tls_transform
+ (unsigned int, unsigned int);
+/* PowerPC @tprel opcode transform/validate. */
+extern unsigned int _bfd_elf_ppc_at_tprel_transform
+ (unsigned int, unsigned int);
+/* PowerPC elf_object_p tweak. */
+extern bfd_boolean _bfd_elf_ppc_set_arch (bfd *);
+/* PowerPC .gnu.attributes handling common to both 32-bit and 64-bit. */
+extern bfd_boolean _bfd_elf_ppc_merge_fp_attributes
+ (bfd *, struct bfd_link_info *);
+
+/* Exported interface for writing elf corefile notes. */
extern char *elfcore_write_note
(bfd *, char *, int *, const char *, int, const void *, int);
extern char *elfcore_write_prpsinfo
(bfd *, char *, int *, const void *, int);
extern char *elfcore_write_ppc_vsx
(bfd *, char *, int *, const void *, int);
+extern char *elfcore_write_ppc_tar
+ (bfd *, char *, int *, const void *, int);
+extern char *elfcore_write_ppc_ppr
+ (bfd *, char *, int *, const void *, int);
+extern char *elfcore_write_ppc_dscr
+ (bfd *, char *, int *, const void *, int);
+extern char *elfcore_write_ppc_ebb
+ (bfd *, char *, int *, const void *, int);
+extern char *elfcore_write_ppc_pmu
+ (bfd *, char *, int *, const void *, int);
+extern char *elfcore_write_ppc_tm_cgpr
+ (bfd *, char *, int *, const void *, int);
+extern char *elfcore_write_ppc_tm_cfpr
+ (bfd *, char *, int *, const void *, int);
+extern char *elfcore_write_ppc_tm_cvmx
+ (bfd *, char *, int *, const void *, int);
+extern char *elfcore_write_ppc_tm_cvsx
+ (bfd *, char *, int *, const void *, int);
+extern char *elfcore_write_ppc_tm_spr
+ (bfd *, char *, int *, const void *, int);
+extern char *elfcore_write_ppc_tm_ctar
+ (bfd *, char *, int *, const void *, int);
+extern char *elfcore_write_ppc_tm_cppr
+ (bfd *, char *, int *, const void *, int);
+extern char *elfcore_write_ppc_tm_cdscr
+ (bfd *, char *, int *, const void *, int);
extern char *elfcore_write_s390_timer
(bfd *, char *, int *, const void *, int);
extern char *elfcore_write_s390_todcmp
(bfd *, char *, int *, const void *, int);
extern char *elfcore_write_s390_vxrs_high
(bfd *, char *, int *, const void *, int);
+extern char *elfcore_write_s390_gs_cb
+ (bfd *, char *, int *, const void *, int);
+extern char *elfcore_write_s390_gs_bc
+ (bfd *, char *, int *, const void *, int);
extern char *elfcore_write_arm_vfp
(bfd *, char *, int *, const void *, int);
extern char *elfcore_write_aarch_tls
(bfd *, char *, int *, const void *, int);
extern char *elfcore_write_aarch_hw_watch
(bfd *, char *, int *, const void *, int);
+extern char *elfcore_write_aarch_sve
+ (bfd *, char *, int *, const void *, int);
extern char *elfcore_write_lwpstatus
(bfd *, char *, int *, long, int, const void *);
extern char *elfcore_write_register_note
extern char *elfcore_write_linux_prpsinfo64
(bfd *, char *, int *, const struct elf_internal_linux_prpsinfo *);
-/* Linux/PPC32 uses different layout compared to most archs. */
-extern char *elfcore_write_ppc_linux_prpsinfo32
- (bfd *, char *, int *, const struct elf_internal_linux_prpsinfo *);
-
extern bfd *_bfd_elf32_bfd_from_remote_memory
(bfd *templ, bfd_vma ehdr_vma, bfd_size_type size, bfd_vma *loadbasep,
int (*target_read_memory) (bfd_vma, bfd_byte *, bfd_size_type));
extern void _bfd_elf_copy_obj_attributes (bfd *, bfd *);
extern int _bfd_elf_obj_attrs_arg_type (bfd *, int, unsigned int);
extern void _bfd_elf_parse_attributes (bfd *, Elf_Internal_Shdr *);
-extern bfd_boolean _bfd_elf_merge_object_attributes (bfd *, bfd *);
+extern bfd_boolean _bfd_elf_merge_object_attributes
+ (bfd *, struct bfd_link_info *);
extern bfd_boolean _bfd_elf_merge_unknown_attribute_low (bfd *, bfd *, int);
extern bfd_boolean _bfd_elf_merge_unknown_attribute_list (bfd *, bfd *);
extern Elf_Internal_Shdr *_bfd_elf_single_rel_hdr (asection *sec);
+extern bfd_boolean _bfd_elf_parse_gnu_properties
+ (bfd *, Elf_Internal_Note *);
+extern elf_property * _bfd_elf_get_property
+ (bfd *, unsigned int, unsigned int);
+extern bfd *_bfd_elf_link_setup_gnu_properties
+ (struct bfd_link_info *);
+extern bfd_size_type _bfd_elf_convert_gnu_property_size
+ (bfd *, bfd *);
+extern bfd_boolean _bfd_elf_convert_gnu_properties
+ (bfd *, asection *, bfd *, bfd_byte **, bfd_size_type *);
+
/* The linker may need to keep track of the number of relocs that it
decides to copy as dynamic relocs in check_relocs for each symbol.
This is so that it can later discard them if they are found to be
extern bfd_boolean _bfd_elf_allocate_ifunc_dyn_relocs
(struct bfd_link_info *, struct elf_link_hash_entry *,
struct elf_dyn_relocs **, bfd_boolean *, unsigned int,
- unsigned int, unsigned int);
-extern long _bfd_elf_ifunc_get_synthetic_symtab
- (bfd *, long, asymbol **, long, asymbol **, asymbol **, asection *,
- bfd_vma *(*) (bfd *, asymbol **, asection *, asection *));
+ unsigned int, unsigned int, bfd_boolean);
extern void elf_append_rela (bfd *, asection *, Elf_Internal_Rela *);
extern void elf_append_rel (bfd *, asection *, Elf_Internal_Rela *);
bfd_boolean err; \
err = (info->unresolved_syms_in_objects == RM_GENERATE_ERROR \
|| ELF_ST_VISIBILITY (h->other) != STV_DEFAULT); \
- if (!info->callbacks->undefined_symbol (info, \
- h->root.root.string, \
- input_bfd, \
- input_section, \
- rel->r_offset, err)) \
- return FALSE; \
+ (*info->callbacks->undefined_symbol) (info, \
+ h->root.root.string, \
+ input_bfd, \
+ input_section, \
+ rel->r_offset, err); \
warned = TRUE; \
} \
(void) unresolved_reloc; \
{ \
int i_; \
_bfd_clear_contents (howto, input_bfd, input_section, \
- contents + rel[index].r_offset); \
+ contents, rel[index].r_offset); \
\
if (bfd_link_relocatable (info) \
&& (input_section->flags & SEC_DEBUGGING)) \
memmove (rel, rel + count, \
(relend - rel - count) * sizeof (*rel)); \
\
- input_section->reloc_count--; \
+ input_section->reloc_count -= count; \
relend -= count; \
rel--; \
continue; \
library, if any. A unique symbol can never be bound locally. */
#define SYMBOLIC_BIND(INFO, H) \
(!(H)->unique_global \
- && ((INFO)->symbolic || ((INFO)->dynamic && !(H)->dynamic)))
+ && ((INFO)->symbolic \
+ || (H)->start_stop \
+ || ((INFO)->dynamic && !(H)->dynamic)))
#ifdef __cplusplus
}
projects / thirdparty / binutils-gdb.git / blobdiff