/* bfdlink.h -- header file for BFD link routines
- Copyright 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002,
- 2003, 2004, 2005 Free Software Foundation, Inc.
+ Copyright (C) 1993-2018 Free Software Foundation, Inc.
Written by Steve Chamberlain and Ian Lance Taylor, Cygnus Support.
This file is part of BFD, the Binary File Descriptor library.
This program 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 2 of the License, or
+ the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
- Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA. */
+ Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
+ MA 02110-1301, USA. */
#ifndef BFDLINK_H
#define BFDLINK_H
discard_all /* Discard all locals. */
};
+/* Whether to generate ELF common symbols with the STT_COMMON type
+ during a relocatable link. */
+enum bfd_link_elf_stt_common
+{
+ unchanged,
+ elf_stt_common,
+ no_elf_stt_common
+};
+
/* Describes the type of hash table entry structure being used.
Different hash table structure have different fields and so
support different linking features. */
bfd_link_hash_warning /* Like indirect, but warn if referenced. */
};
-enum bfd_link_common_skip_ar_aymbols
+enum bfd_link_common_skip_ar_symbols
{
bfd_link_common_skip_none,
bfd_link_common_skip_text,
bfd_link_common_skip_all
};
+struct bfd_link_hash_common_entry
+ {
+ unsigned int alignment_power; /* Alignment. */
+ asection *section; /* Symbol section. */
+ };
+
/* The linking routines use a hash table which uses this structure for
its elements. */
struct bfd_hash_entry root;
/* Type of this entry. */
- enum bfd_link_hash_type type;
+ ENUM_BITFIELD (bfd_link_hash_type) type : 8;
+
+ /* Symbol is referenced in a normal regular object file,
+ as distinct from a LTO IR object file. */
+ unsigned int non_ir_ref_regular : 1;
+
+ /* Symbol is referenced in a normal dynamic object file,
+ as distinct from a LTO IR object file. */
+ unsigned int non_ir_ref_dynamic : 1;
+
+ /* Symbol is a built-in define. These will be overridden by PROVIDE
+ in a linker script. */
+ unsigned int linker_def : 1;
+
+ /* Symbol defined in a linker script. */
+ unsigned int ldscript_def : 1;
/* A union of information depending upon the type. */
union
automatically be non-NULL since the symbol will have been on the
undefined symbol list. */
struct bfd_link_hash_entry *next;
- bfd *abfd; /* BFD symbol was found in. */
- bfd *weak; /* BFD weak symbol was found in. */
+ /* BFD symbol was found in. */
+ bfd *abfd;
} undef;
/* bfd_link_hash_defined, bfd_link_hash_defweak. */
struct
{
struct bfd_link_hash_entry *next;
- asection *section; /* Symbol section. */
- bfd_vma value; /* Symbol value. */
+ /* Symbol section. */
+ asection *section;
+ /* Symbol value. */
+ bfd_vma value;
} def;
/* bfd_link_hash_indirect, bfd_link_hash_warning. */
struct
{
struct bfd_link_hash_entry *next;
- struct bfd_link_hash_entry *link; /* Real symbol. */
- const char *warning; /* Warning (bfd_link_hash_warning only). */
+ /* Real symbol. */
+ struct bfd_link_hash_entry *link;
+ /* Warning message (bfd_link_hash_warning only). */
+ const char *warning;
} i;
/* bfd_link_hash_common. */
struct
directly because we don't want to increase the size of
the union; this structure is a major space user in the
linker. */
- struct bfd_link_hash_common_entry
- {
- unsigned int alignment_power; /* Alignment. */
- asection *section; /* Symbol section. */
- } *p;
- bfd_size_type size; /* Common symbol size. */
+ struct bfd_link_hash_common_entry *p;
+ /* Common symbol size. */
+ bfd_size_type size;
} c;
} u;
};
{
/* The hash table itself. */
struct bfd_hash_table table;
- /* The back end which created this hash table. This indicates the
- type of the entries in the hash table, which is sometimes
- important information when linking object files of different
- types together. */
- const bfd_target *creator;
/* A linked list of undefined and common symbols, linked through the
next field in the bfd_link_hash_entry structure. */
struct bfd_link_hash_entry *undefs;
/* Entries are added to the tail of the undefs list. */
struct bfd_link_hash_entry *undefs_tail;
+ /* Function to free the hash table on closing BFD. */
+ void (*hash_table_free) (bfd *);
/* The type of the link hash table. */
enum bfd_link_hash_table_type type;
};
(bfd *, struct bfd_link_info *, const char *, bfd_boolean,
bfd_boolean, bfd_boolean);
+/* If H is a wrapped symbol, ie. the symbol name starts with "__wrap_"
+ and the remainder is found in wrap_hash, return the real symbol. */
+
+extern struct bfd_link_hash_entry *unwrap_hash_lookup
+ (struct bfd_link_info *, bfd *, struct bfd_link_hash_entry *);
+
/* Traverse a link hash table. */
extern void bfd_link_hash_traverse
(struct bfd_link_hash_table *,
extern void bfd_link_repair_undef_list
(struct bfd_link_hash_table *table);
+/* Read symbols and cache symbol pointer array in outsymbols. */
+extern bfd_boolean bfd_generic_link_read_symbols (bfd *);
+
+/* Check the relocs in the BFD. Called after all the input
+ files have been loaded, and garbage collection has tagged
+ any unneeded sections. */
+extern bfd_boolean bfd_link_check_relocs (bfd *,struct bfd_link_info *);
+
struct bfd_sym_chain
{
struct bfd_sym_chain *next;
RM_GENERATE_ERROR
};
+typedef enum {with_flags, without_flags} flag_type;
+
+/* A section flag list. */
+struct flag_info_list
+{
+ flag_type with;
+ const char *name;
+ bfd_boolean valid;
+ struct flag_info_list *next;
+};
+
+/* Section flag info. */
+struct flag_info
+{
+ flagword only_with_flags;
+ flagword not_with_flags;
+ struct flag_info_list *flag_list;
+ bfd_boolean flags_initialized;
+};
+
struct bfd_elf_dynamic_list;
+struct bfd_elf_version_tree;
-/* This structure holds all the information needed to communicate
- between BFD and the linker when doing a link. */
+/* Types of output. */
-struct bfd_link_info
+enum output_type
{
- /* TRUE if BFD should generate a relocatable object file. */
- unsigned int relocatable: 1;
+ type_pde,
+ type_pie,
+ type_relocatable,
+ type_dll,
+};
- /* TRUE if BFD should generate relocation information in the final
- executable. */
- unsigned int emitrelocations: 1;
+#define bfd_link_pde(info) ((info)->type == type_pde)
+#define bfd_link_dll(info) ((info)->type == type_dll)
+#define bfd_link_relocatable(info) ((info)->type == type_relocatable)
+#define bfd_link_pie(info) ((info)->type == type_pie)
+#define bfd_link_executable(info) (bfd_link_pde (info) || bfd_link_pie (info))
+#define bfd_link_pic(info) (bfd_link_dll (info) || bfd_link_pie (info))
- /* TRUE if BFD should generate a "task linked" object file,
- similar to relocatable but also with globals converted to
- statics. */
- unsigned int task_link: 1;
+/* This structure holds all the information needed to communicate
+ between BFD and the linker when doing a link. */
- /* TRUE if BFD should generate a shared object. */
- unsigned int shared: 1;
+struct bfd_link_info
+{
+ /* Output type. */
+ ENUM_BITFIELD (output_type) type : 2;
/* TRUE if BFD should pre-bind symbols in a shared object. */
unsigned int symbolic: 1;
+ /* TRUE if executable should not contain copy relocs.
+ Setting this true may result in a non-sharable text segment. */
+ unsigned int nocopyreloc: 1;
+
/* TRUE if BFD should export all symbols in the dynamic symbol table
of an executable, rather than only those used. */
unsigned int export_dynamic: 1;
- /* TRUE if shared objects should be linked directly, not shared. */
- unsigned int static_link: 1;
-
- /* TRUE if the output file should be in a traditional format. This
- is equivalent to the setting of the BFD_TRADITIONAL_FORMAT flag
- on the output file, but may be checked when reading the input
- files. */
- unsigned int traditional_format: 1;
-
- /* TRUE if we want to produced optimized output files. This might
- need much more time and therefore must be explicitly selected. */
- unsigned int optimize: 1;
-
- /* TRUE if ok to have multiple definition. */
- unsigned int allow_multiple_definition: 1;
-
- /* TRUE if ok to have version with no definition. */
- unsigned int allow_undefined_version: 1;
-
/* TRUE if a default symbol version should be created and used for
exported symbols. */
unsigned int create_default_symver: 1;
- /* TRUE if a default symbol version should be created and used for
- imported symbols. */
- unsigned int default_imported_symver: 1;
+ /* TRUE if unreferenced sections should be removed. */
+ unsigned int gc_sections: 1;
- /* TRUE if symbols should be retained in memory, FALSE if they
- should be freed and reread. */
- unsigned int keep_memory: 1;
+ /* TRUE if exported symbols should be kept during section gc. */
+ unsigned int gc_keep_exported: 1;
/* TRUE if every symbol should be reported back via the notice
callback. */
unsigned int notice_all: 1;
- /* TRUE if executable should not contain copy relocs.
- Setting this true may result in a non-sharable text segment. */
- unsigned int nocopyreloc: 1;
+ /* TRUE if the LTO plugin is active. */
+ unsigned int lto_plugin_active: 1;
- /* TRUE if the new ELF dynamic tags are enabled. */
- unsigned int new_dtags: 1;
+ /* TRUE if global symbols in discarded sections should be stripped. */
+ unsigned int strip_discarded: 1;
- /* TRUE if non-PLT relocs should be merged into one reloc section
- and sorted so that relocs against the same symbol come together. */
- unsigned int combreloc: 1;
+ /* TRUE if all data symbols should be dynamic. */
+ unsigned int dynamic_data: 1;
- /* TRUE if .eh_frame_hdr section and PT_GNU_EH_FRAME ELF segment
- should be created. */
- unsigned int eh_frame_hdr: 1;
+ /* TRUE if section groups should be resolved. */
+ unsigned int resolve_section_groups: 1;
- /* TRUE if global symbols in discarded sections should be stripped. */
- unsigned int strip_discarded: 1;
+ /* Which symbols to strip. */
+ ENUM_BITFIELD (bfd_link_strip) strip : 2;
- /* TRUE if generating a position independent executable. */
- unsigned int pie: 1;
+ /* Which local symbols to discard. */
+ ENUM_BITFIELD (bfd_link_discard) discard : 2;
- /* TRUE if generating an executable, position independent or not. */
- unsigned int executable : 1;
+ /* Whether to generate ELF common symbols with the STT_COMMON type. */
+ ENUM_BITFIELD (bfd_link_elf_stt_common) elf_stt_common : 2;
- /* TRUE if PT_GNU_STACK segment should be created with PF_R|PF_W|PF_X
- flags. */
- unsigned int execstack: 1;
+ /* Criteria for skipping symbols when determining
+ whether to include an object from an archive. */
+ ENUM_BITFIELD (bfd_link_common_skip_ar_symbols) common_skip_ar_symbols : 2;
- /* TRUE if PT_GNU_STACK segment should be created with PF_R|PF_W
- flags. */
- unsigned int noexecstack: 1;
+ /* What to do with unresolved symbols in an object file.
+ When producing executables the default is GENERATE_ERROR.
+ When producing shared libraries the default is IGNORE. The
+ assumption with shared libraries is that the reference will be
+ resolved at load/execution time. */
+ ENUM_BITFIELD (report_method) unresolved_syms_in_objects : 2;
+
+ /* What to do with unresolved symbols in a shared library.
+ The same defaults apply. */
+ ENUM_BITFIELD (report_method) unresolved_syms_in_shared_libs : 2;
+
+ /* TRUE if shared objects should be linked directly, not shared. */
+ unsigned int static_link: 1;
+
+ /* TRUE if symbols should be retained in memory, FALSE if they
+ should be freed and reread. */
+ unsigned int keep_memory: 1;
+
+ /* TRUE if BFD should generate relocation information in the final
+ executable. */
+ unsigned int emitrelocations: 1;
/* TRUE if PT_GNU_RELRO segment should be created. */
unsigned int relro: 1;
+ /* TRUE if separate code segment should be created. */
+ unsigned int separate_code: 1;
+
+ /* Nonzero if .eh_frame_hdr section and PT_GNU_EH_FRAME ELF segment
+ should be created. 1 for DWARF2 tables, 2 for compact tables. */
+ unsigned int eh_frame_hdr_type: 2;
+
/* TRUE if we should warn when adding a DT_TEXTREL to a shared object. */
unsigned int warn_shared_textrel: 1;
- /* TRUE if unreferenced sections should be removed. */
- unsigned int gc_sections: 1;
-
- /* TRUE if user shoudl be informed of removed unreferenced sections. */
- unsigned int print_gc_sections: 1;
+ /* TRUE if we should error when adding a DT_TEXTREL. */
+ unsigned int error_textrel: 1;
/* TRUE if .hash section should be created. */
unsigned int emit_hash: 1;
caching ELF symbol buffer. */
unsigned int reduce_memory_overheads: 1;
- /* TRUE if all data symbols should be dynamic. */
- unsigned int dynamic_data: 1;
+ /* TRUE if the output file should be in a traditional format. This
+ is equivalent to the setting of the BFD_TRADITIONAL_FORMAT flag
+ on the output file, but may be checked when reading the input
+ files. */
+ unsigned int traditional_format: 1;
+
+ /* TRUE if non-PLT relocs should be merged into one reloc section
+ and sorted so that relocs against the same symbol come together. */
+ unsigned int combreloc: 1;
+
+ /* TRUE if a default symbol version should be created and used for
+ imported symbols. */
+ unsigned int default_imported_symver: 1;
+
+ /* TRUE if the new ELF dynamic tags are enabled. */
+ unsigned int new_dtags: 1;
+
+ /* FALSE if .eh_frame unwind info should be generated for PLT and other
+ linker created sections, TRUE if it should be omitted. */
+ unsigned int no_ld_generated_unwind_info: 1;
+
+ /* TRUE if BFD should generate a "task linked" object file,
+ similar to relocatable but also with globals converted to
+ statics. */
+ unsigned int task_link: 1;
+
+ /* TRUE if ok to have multiple definition. */
+ unsigned int allow_multiple_definition: 1;
+
+ /* TRUE if ok to have prohibit multiple definition of absolute symbols. */
+ unsigned int prohibit_multiple_definition_absolute: 1;
+
+ /* TRUE if ok to have version with no definition. */
+ unsigned int allow_undefined_version: 1;
/* TRUE if some symbols have to be dynamic, controlled by
--dynamic-list command line options. */
unsigned int dynamic: 1;
- /* What to do with unresolved symbols in an object file.
- When producing executables the default is GENERATE_ERROR.
- When producing shared libraries the default is IGNORE. The
- assumption with shared libraries is that the reference will be
- resolved at load/execution time. */
- enum report_method unresolved_syms_in_objects;
+ /* TRUE if PT_GNU_STACK segment should be created with PF_R|PF_W|PF_X
+ flags. */
+ unsigned int execstack: 1;
- /* What to do with unresolved symbols in a shared library.
- The same defaults apply. */
- enum report_method unresolved_syms_in_shared_libs;
+ /* TRUE if PT_GNU_STACK segment should be created with PF_R|PF_W
+ flags. */
+ unsigned int noexecstack: 1;
- /* Which symbols to strip. */
- enum bfd_link_strip strip;
+ /* TRUE if we want to produced optimized output files. This might
+ need much more time and therefore must be explicitly selected. */
+ unsigned int optimize: 1;
- /* Which local symbols to discard. */
- enum bfd_link_discard discard;
+ /* TRUE if user should be informed of removed unreferenced sections. */
+ unsigned int print_gc_sections: 1;
- /* Criteria for skipping symbols when detemining
- whether to include an object from an archive. */
- enum bfd_link_common_skip_ar_aymbols common_skip_ar_aymbols;
+ /* TRUE if we should warn alternate ELF machine code. */
+ unsigned int warn_alternate_em: 1;
+
+ /* TRUE if the linker script contained an explicit PHDRS command. */
+ unsigned int user_phdrs: 1;
+
+ /* TRUE if we should check relocations after all input files have
+ been opened. */
+ unsigned int check_relocs_after_open_input: 1;
+
+ /* TRUE if BND prefix in PLT entries is always generated. */
+ unsigned int bndplt: 1;
+
+ /* TRUE if IBT-enabled PLT entries should be generated. */
+ unsigned int ibtplt: 1;
+
+ /* TRUE if GNU_PROPERTY_X86_FEATURE_1_IBT should be generated. */
+ unsigned int ibt: 1;
+
+ /* TRUE if GNU_PROPERTY_X86_FEATURE_1_SHSTK should be generated. */
+ unsigned int shstk: 1;
+
+ /* TRUE if generation of .interp/PT_INTERP should be suppressed. */
+ unsigned int nointerp: 1;
+
+ /* TRUE if we shouldn't check relocation overflow. */
+ unsigned int no_reloc_overflow_check: 1;
+
+ /* TRUE if generate a 1-byte NOP as suffix for x86 call instruction. */
+ unsigned int call_nop_as_suffix : 1;
+
+ /* TRUE if common symbols should be treated as undefined. */
+ unsigned int inhibit_common_definition : 1;
+
+ /* The 1-byte NOP for x86 call instruction. */
+ char call_nop_byte;
/* Char that may appear as the first char of a symbol, but should be
skipped (like symbol_leading_char) when looking up symbols in
wrap_hash. Used by PowerPC Linux for 'dot' symbols. */
char wrap_char;
+ /* Separator between archive and filename in linker script filespecs. */
+ char path_separator;
+
+ /* Compress DWARF debug sections. */
+ enum compressed_debug_section_type compress_debug;
+
+ /* Default stack size. Zero means default (often zero itself), -1
+ means explicitly zero-sized. */
+ bfd_signed_vma stacksize;
+
+ /* Enable or disable target specific optimizations.
+
+ Not all targets have optimizations to enable.
+
+ Normally these optimizations are disabled by default but some targets
+ prefer to enable them by default. So this field is a tri-state variable.
+ The values are:
+
+ zero: Enable the optimizations (either from --relax being specified on
+ the command line or the backend's before_allocation emulation function.
+
+ positive: The user has requested that these optimizations be disabled.
+ (Via the --no-relax command line option).
+
+ negative: The optimizations are disabled. (Set when initializing the
+ args_type structure in ldmain.c:main. */
+ signed int disable_target_specific_optimizations;
+
/* Function callbacks. */
const struct bfd_link_callbacks *callbacks;
option). If this is NULL, no symbols are being wrapped. */
struct bfd_hash_table *wrap_hash;
+ /* Hash table of symbols which may be left unresolved during
+ a link. If this is NULL, no symbols can be left unresolved. */
+ struct bfd_hash_table *ignore_hash;
+
+ /* The output BFD. */
+ bfd *output_bfd;
+
+ /* The import library generated. */
+ bfd *out_implib_bfd;
+
/* The list of input BFD's involved in the link. These are chained
- together via the link_next field. */
+ together via the link.next field. */
bfd *input_bfds;
+ bfd **input_bfds_tail;
/* If a symbol should be created for each input BFD, this is section
where those symbols should be placed. It must be a section in
relaxation returning true in *AGAIN. */
int relax_trip;
+ /* > 0 to treat protected data defined in the shared library as
+ reference external. 0 to treat it as internal. -1 to let
+ backend to decide. */
+ int extern_protected_data;
+
+ /* 1 to make undefined weak symbols dynamic when building a dynamic
+ object. 0 to resolve undefined weak symbols to zero. -1 to let
+ the backend decide. */
+ int dynamic_undefined_weak;
+
/* Non-zero if auto-import thunks for DATA items in pei386 DLLs
should be generated/linked against. Set to 1 if this feature
is explicitly requested by the user, -1 if enabled by default. */
/* List of symbols should be dynamic. */
struct bfd_elf_dynamic_list *dynamic_list;
+
+ /* The version information. */
+ struct bfd_elf_version_tree *version_info;
};
-/* This structures holds a set of callback functions. These are
- called by the BFD linker routines. Except for einfo, the first
- argument to each callback function is the bfd_link_info structure
- being used and each function returns a boolean value. If the
- function returns FALSE, then the BFD function which called it should
- return with a failure indication. */
+/* This structures holds a set of callback functions. These are called
+ by the BFD linker routines. */
struct bfd_link_callbacks
{
/* A function which is called when an object is added from an
archive. ABFD is the archive element being added. NAME is the
name of the symbol which caused the archive element to be pulled
- in. */
+ in. This function may set *SUBSBFD to point to an alternative
+ BFD from which symbols should in fact be added in place of the
+ original BFD's symbols. Returns TRUE if the object should be
+ added, FALSE if it should be skipped. */
bfd_boolean (*add_archive_element)
- (struct bfd_link_info *, bfd *abfd, const char *name);
+ (struct bfd_link_info *, bfd *abfd, const char *name, bfd **subsbfd);
/* A function which is called when a symbol is found with multiple
- definitions. NAME is the symbol which is defined multiple times.
- OBFD is the old BFD, OSEC is the old section, OVAL is the old
- value, NBFD is the new BFD, NSEC is the new section, and NVAL is
- the new value. OBFD may be NULL. OSEC and NSEC may be
- bfd_com_section or bfd_ind_section. */
- bfd_boolean (*multiple_definition)
- (struct bfd_link_info *, const char *name,
- bfd *obfd, asection *osec, bfd_vma oval,
+ definitions. H is the symbol which is defined multiple times.
+ NBFD is the new BFD, NSEC is the new section, and NVAL is the new
+ value. NSEC may be bfd_com_section or bfd_ind_section. */
+ void (*multiple_definition)
+ (struct bfd_link_info *, struct bfd_link_hash_entry *h,
bfd *nbfd, asection *nsec, bfd_vma nval);
/* A function which is called when a common symbol is defined
- multiple times. NAME is the symbol appearing multiple times.
- OBFD is the BFD of the existing symbol; it may be NULL if this is
- not known. OTYPE is the type of the existing symbol, which may
- be bfd_link_hash_defined, bfd_link_hash_defweak,
- bfd_link_hash_common, or bfd_link_hash_indirect. If OTYPE is
- bfd_link_hash_common, OSIZE is the size of the existing symbol.
+ multiple times. H is the symbol appearing multiple times.
NBFD is the BFD of the new symbol. NTYPE is the type of the new
symbol, one of bfd_link_hash_defined, bfd_link_hash_common, or
bfd_link_hash_indirect. If NTYPE is bfd_link_hash_common, NSIZE
is the size of the new symbol. */
- bfd_boolean (*multiple_common)
- (struct bfd_link_info *, const char *name,
- bfd *obfd, enum bfd_link_hash_type otype, bfd_vma osize,
+ void (*multiple_common)
+ (struct bfd_link_info *, struct bfd_link_hash_entry *h,
bfd *nbfd, enum bfd_link_hash_type ntype, bfd_vma nsize);
/* A function which is called to add a symbol to a set. ENTRY is
the link hash table entry for the set itself (e.g.,
the set when generating a relocatable file, and is also used to
get the size of the entry when generating an executable file.
ABFD, SEC and VALUE identify the value to add to the set. */
- bfd_boolean (*add_to_set)
+ void (*add_to_set)
(struct bfd_link_info *, struct bfd_link_hash_entry *entry,
bfd_reloc_code_real_type reloc, bfd *abfd, asection *sec, bfd_vma value);
/* A function which is called when the name of a g++ constructor or
destructor. This will use BFD_RELOC_CTOR when generating a
relocatable file. NAME is the name of the symbol found. ABFD,
SECTION and VALUE are the value of the symbol. */
- bfd_boolean (*constructor)
+ void (*constructor)
(struct bfd_link_info *, bfd_boolean constructor, const char *name,
bfd *abfd, asection *sec, bfd_vma value);
/* A function which is called to issue a linker warning. For
there is none. ABFD, SECTION and ADDRESS identify the location
which trigerred the warning; either ABFD or SECTION or both may
be NULL if the location is not known. */
- bfd_boolean (*warning)
+ void (*warning)
(struct bfd_link_info *, const char *warning, const char *symbol,
bfd *abfd, asection *section, bfd_vma address);
/* A function which is called when a relocation is attempted against
an undefined symbol. NAME is the symbol which is undefined.
ABFD, SECTION and ADDRESS identify the location from which the
- reference is made. FATAL indicates whether an undefined symbol is
+ reference is made. IS_FATAL indicates whether an undefined symbol is
a fatal error or not. In some cases SECTION may be NULL. */
- bfd_boolean (*undefined_symbol)
+ void (*undefined_symbol)
(struct bfd_link_info *, const char *name, bfd *abfd,
- asection *section, bfd_vma address, bfd_boolean fatal);
+ asection *section, bfd_vma address, bfd_boolean is_fatal);
/* A function which is called when a reloc overflow occurs. ENTRY is
the link hash table entry for the symbol the reloc is against.
NAME is the name of the local symbol or section the reloc is
location at which the overflow occurs; if this is the result of a
bfd_section_reloc_link_order or bfd_symbol_reloc_link_order, then
ABFD will be NULL. */
- bfd_boolean (*reloc_overflow)
+ void (*reloc_overflow)
(struct bfd_link_info *, struct bfd_link_hash_entry *entry,
const char *name, const char *reloc_name, bfd_vma addend,
bfd *abfd, asection *section, bfd_vma address);
problem occurred; if this is the result of a
bfd_section_reloc_link_order or bfd_symbol_reloc_link_order, then
ABFD will be NULL. */
- bfd_boolean (*reloc_dangerous)
+ void (*reloc_dangerous)
(struct bfd_link_info *, const char *message,
bfd *abfd, asection *section, bfd_vma address);
/* A function which is called when a reloc is found to be attached
the reloc; if this is the result of a
bfd_section_reloc_link_order or bfd_symbol_reloc_link_order, then
ABFD will be NULL. */
- bfd_boolean (*unattached_reloc)
+ void (*unattached_reloc)
(struct bfd_link_info *, const char *name,
bfd *abfd, asection *section, bfd_vma address);
/* A function which is called when a symbol in notice_hash is
- defined or referenced. NAME is the symbol. ABFD, SECTION and
- ADDRESS are the value of the symbol. If SECTION is
- bfd_und_section, this is a reference. */
+ defined or referenced. H is the symbol, INH the indirect symbol
+ if applicable. ABFD, SECTION and ADDRESS are the (new) value of
+ the symbol. If SECTION is bfd_und_section, this is a reference.
+ FLAGS are the symbol BSF_* flags. */
bfd_boolean (*notice)
- (struct bfd_link_info *, const char *name,
- bfd *abfd, asection *section, bfd_vma address);
- /* General link info message. */
+ (struct bfd_link_info *, struct bfd_link_hash_entry *h,
+ struct bfd_link_hash_entry *inh,
+ bfd *abfd, asection *section, bfd_vma address, flagword flags);
+ /* Error or warning link info message. */
void (*einfo)
(const char *fmt, ...);
+ /* General link info message. */
+ void (*info)
+ (const char *fmt, ...);
+ /* Message to be printed in linker map file. */
+ void (*minfo)
+ (const char *fmt, ...);
/* This callback provides a chance for users of the BFD library to
override its decision about whether to place two adjacent sections
into the same segment. */
} indirect;
struct
{
- /* Size of contents, or zero when contents size == size
- within output section.
+ /* Size of contents, or zero when contents should be filled by
+ the architecture-dependent fill function.
A non-zero value allows filling of the output section
with an arbitrary repeated pattern. */
unsigned int size;
struct bfd_elf_version_expr *next;
/* Glob pattern. */
const char *pattern;
- /* NULL for a glob pattern, otherwise a straight symbol. */
- const char *symbol;
+ /* Set if pattern is not a glob. */
+ unsigned int literal : 1;
/* Defined by ".symver". */
unsigned int symver : 1;
/* Defined by version script. */