/* BFD back-end data structures for ELF files.
- Copyright (C) 1992-2018 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.
AVR_ELF_DATA,
BFIN_ELF_DATA,
CRIS_ELF_DATA,
+ CSKY_ELF_DATA,
FRV_ELF_DATA,
HPPA32_ELF_DATA,
HPPA64_ELF_DATA,
TIC6X_ELF_DATA,
X86_64_ELF_DATA,
XTENSA_ELF_DATA,
- XGATE_ELF_DATA,
TILEGX_ELF_DATA,
TILEPRO_ELF_DATA,
RISCV_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;
/* Add a new one if elf_property_kind is updated. */
} u;
enum elf_property_kind pr_kind;
+ const char *filename;
} elf_property;
typedef struct elf_property_list
/* 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;
(bfd *, struct bfd_link_info *);
/* A function to do any final processing needed for the ELF file
- before writing it out. The LINKER argument is TRUE if this BFD
- was created by the ELF backend linker. */
- void (*elf_backend_final_write_processing)
- (bfd *, bfd_boolean linker);
+ before writing it out. */
+ bfd_boolean (*elf_backend_final_write_processing)
+ (bfd *);
/* This function is called by get_program_header_size. It should
return the number of additional program segments which this BFD
/* Return TRUE if symbol should be hashed in the `.gnu.hash' section. */
bfd_boolean (*elf_hash_symbol) (struct elf_link_hash_entry *);
+ /* If non-NULL, called to register the location of XLAT_LOC within
+ .MIPS.xhash at which real final dynindx for H will be written.
+ If XLAT_LOC is zero, the symbol is not included in
+ .MIPS.xhash and no dynindx will be written. */
+ void (*record_xhash_symbol)
+ (struct elf_link_hash_entry *h, bfd_vma xlat_loc);
+
/* Return TRUE if type is a function symbol type. */
bfd_boolean (*is_function_type) (unsigned int type);
unsigned int);
/* Merge GNU properties. Return TRUE if property is updated. */
- bfd_boolean (*merge_gnu_properties) (struct bfd_link_info *, bfd *,
+ bfd_boolean (*merge_gnu_properties) (struct bfd_link_info *, bfd *, 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 *);
#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;
/* Segment flags for the PT_GNU_STACK segment. */
unsigned int stack_flags;
- /* This is set to TRUE if the object was created by the backend
- linker. */
- bfd_boolean linker;
-
/* Used to determine if the e_flags field has been initialized */
bfd_boolean flags_init;
};
-/* Indicate if the bfd contains symbols that have the STT_GNU_IFUNC
- symbol type or STB_GNU_UNIQUE binding. Used to set the osabi
- field in the ELF header structure. */
-enum elf_gnu_symbols
+/* Indicate if the bfd contains SHF_GNU_MBIND sections or symbols that
+ have the STT_GNU_IFUNC symbol type or STB_GNU_UNIQUE binding. Used
+ to set the osabi field in the ELF header structure. */
+enum elf_gnu_osabi
{
- 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_osabi_mbind = 1 << 0,
+ elf_gnu_osabi_ifunc = 1 << 1,
+ elf_gnu_osabi_unique = 1 << 2,
};
typedef struct elf_section_list
or was found via a DT_NEEDED entry. */
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 the bfd uses OS specific bits that require ELFOSABI_GNU. */
+ ENUM_BITFIELD (elf_gnu_osabi) has_gnu_osabi : 3;
/* Whether if the bfd contains the GNU_PROPERTY_NO_COPY_ON_PROTECTED
property. */
#define elf_seg_map(bfd) (elf_tdata(bfd) -> o->seg_map)
#define elf_next_file_pos(bfd) (elf_tdata(bfd) -> o->next_file_pos)
#define elf_eh_frame_hdr(bfd) (elf_tdata(bfd) -> o->eh_frame_hdr)
-#define elf_linker(bfd) (elf_tdata(bfd) -> o->linker)
#define elf_stack_flags(bfd) (elf_tdata(bfd) -> o->stack_flags)
#define elf_shstrtab(bfd) (elf_tdata(bfd) -> o->strtab_ptr)
#define elf_onesymtab(bfd) (elf_tdata(bfd) -> symtab_section)
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
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 bfd_boolean _bfd_elf_no_info_to_howto
(bfd *, arelent *, Elf_Internal_Rela *);
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 void _bfd_elf_post_process_headers (bfd *, struct bfd_link_info *);
+
+extern bfd_boolean _bfd_elf_final_write_processing (bfd *);
extern const bfd_target *bfd_elf32_object_p
(bfd *);
/* 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 void _bfd_elf_ppc_merge_fp_attributes (bfd *, struct bfd_link_info *);
+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 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_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_aarch_pauth
+ (bfd *, char *, int *, const void *, int);
extern char *elfcore_write_lwpstatus
(bfd *, char *, int *, long, int, const void *);
extern char *elfcore_write_register_note
(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.
extern bfd_vma elf32_r_info (bfd_vma, bfd_vma);
extern bfd_vma elf32_r_sym (bfd_vma);
+extern bfd_boolean is_debuginfo_file (bfd *);
+
/* Large common section. */
extern asection _bfd_elf_large_com_section;
{ \
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)) \
projects / external / binutils.git / blobdiff