/* Mach-O support for BFD.
- Copyright 1999, 2000, 2001, 2002, 2003, 2005, 2007, 2008, 2009
- Free Software Foundation, Inc.
+ Copyright (C) 1999-2020 Free Software Foundation, Inc.
This file is part of BFD, the Binary File Descriptor library.
#ifndef _BFD_MACH_O_H_
#define _BFD_MACH_O_H_
-#include "bfd.h"
#include "mach-o/loader.h"
+#include "mach-o/external.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
typedef struct bfd_mach_o_header
{
}
bfd_mach_o_header;
+typedef struct bfd_mach_o_asymbol
+{
+ /* The actual symbol which the rest of BFD works with. */
+ asymbol symbol;
+
+ /* Mach-O symbol fields. */
+ unsigned char n_type;
+ unsigned char n_sect;
+ unsigned short n_desc;
+}
+bfd_mach_o_asymbol;
+
#define BFD_MACH_O_SEGNAME_SIZE 16
#define BFD_MACH_O_SECTNAME_SIZE 16
/* Corresponding bfd section. */
asection *bfdsection;
+ /* An array holding the indirect symbols for this section.
+ NULL values indicate local symbols.
+ The number of symbols is determined from the section size and type. */
+
+ bfd_mach_o_asymbol **indirect_syms;
+
/* Simply linked list. */
struct bfd_mach_o_section *next;
}
typedef struct bfd_mach_o_segment_command
{
- char segname[16 + 1];
+ char segname[BFD_MACH_O_SEGNAME_SIZE + 1];
bfd_vma vmaddr;
bfd_vma vmsize;
bfd_vma fileoff;
#define BFD_MACH_O_PROT_WRITE 0x02
#define BFD_MACH_O_PROT_EXECUTE 0x04
+/* Target platforms. */
+#define BFD_MACH_O_PLATFORM_MACOS 1
+#define BFD_MACH_O_PLATFORM_IOS 2
+#define BFD_MACH_O_PLATFORM_TVOS 3
+#define BFD_MACH_O_PLATFORM_WATCHOS 4
+#define BFD_MACH_O_PLATFORM_BRIDGEOS 5
+
+/* Build tools. */
+#define BFD_MACH_O_TOOL_CLANG 1
+#define BFD_MACH_O_TOOL_SWIFT 2
+#define BFD_MACH_O_TOOL_LD 3
+
/* Expanded internal representation of a relocation entry. */
typedef struct bfd_mach_o_reloc_info
{
}
bfd_mach_o_reloc_info;
-typedef struct bfd_mach_o_asymbol
-{
- /* The actual symbol which the rest of BFD works with. */
- asymbol symbol;
-
- /* Fields from Mach-O symbol. */
- unsigned char n_type;
- unsigned char n_sect;
- unsigned short n_desc;
-}
-bfd_mach_o_asymbol;
+/* The symbol table is sorted like this:
+ (1) local.
+ (otherwise in order of generation)
+ (2) external defined
+ (sorted by name)
+ (3) external undefined / common
+ (sorted by name)
+*/
typedef struct bfd_mach_o_symtab_command
{
tables is determined as follows:
table of contents - the defined external symbols are sorted by name
module table - the file contains only one module so everything in the
- file is part of the module.
+ file is part of the module.
reference symbol table - is the defined and undefined external symbols
For dynamically linked shared library files this load command also contains
symbols are sorted by name and is use as the table of contents. */
unsigned long tocoff; /* File offset to table of contents. */
- unsigned long ntoc; /* Number of entries in table of contents. */
+ unsigned long ntoc; /* Number of entries in table of contents. */
/* To support dynamic binding of "modules" (whole object files) the symbol
table must reflect the modules that the file was created from. This is
#define BFD_MACH_O_INDIRECT_SYMBOL_ABS 0x40000000
#define BFD_MACH_O_INDIRECT_SYMBOL_SIZE 4
+/* For LC_TWOLEVEL_HINTS. */
+
+typedef struct bfd_mach_o_twolevel_hints_command
+{
+ /* Offset to the hint table. */
+ unsigned int offset;
+
+ /* Number of entries in the table. */
+ unsigned int nhints;
+}
+bfd_mach_o_twolevel_hints_command;
+
+/* For LC_PREBIND_CKSUM. */
+
+typedef struct bfd_mach_o_prebind_cksum_command
+{
+ /* Checksum or zero. */
+ unsigned int cksum;
+}
+bfd_mach_o_prebind_cksum_command;
+
/* For LC_THREAD or LC_UNIXTHREAD. */
typedef struct bfd_mach_o_thread_flavour
typedef struct bfd_mach_o_dylinker_command
{
- unsigned long name_offset; /* Offset to library's path name. */
- unsigned long name_len; /* Offset to library's path name. */
+ unsigned int name_offset; /* Offset to library's path name. */
char *name_str;
}
bfd_mach_o_dylinker_command;
typedef struct bfd_mach_o_dylib_command
{
- unsigned long name_offset; /* Offset to library's path name. */
- unsigned long name_len; /* Offset to library's path name. */
+ unsigned int name_offset; /* Offset to library's path name. */
unsigned long timestamp; /* Library's build time stamp. */
unsigned long current_version; /* Library's current version number. */
unsigned long compatibility_version; /* Library's compatibility vers number. */
typedef struct bfd_mach_o_prebound_dylib_command
{
- unsigned long name; /* Library's path name. */
- unsigned long nmodules; /* Number of modules in library. */
- unsigned long linked_modules; /* Bit vector of linked modules. */
+ unsigned int name_offset; /* Library's path name. */
+ unsigned int nmodules; /* Number of modules in library. */
+ unsigned int linked_modules_offset; /* Bit vector of linked modules. */
+
+ char *name_str;
+ unsigned char *linked_modules;
}
bfd_mach_o_prebound_dylib_command;
}
bfd_mach_o_str_command;
+typedef struct bfd_mach_o_fvmlib_command
+{
+ unsigned int name_offset;
+ char *name_str;
+ unsigned int minor_version;
+ unsigned int header_addr;
+}
+bfd_mach_o_fvmlib_command;
+
typedef struct bfd_mach_o_dyld_info_command
{
/* File offset and size to rebase info. */
- unsigned int rebase_off;
+ unsigned int rebase_off;
unsigned int rebase_size;
+ unsigned char *rebase_content;
/* File offset and size of binding info. */
unsigned int bind_off;
unsigned int bind_size;
+ unsigned char *bind_content;
/* File offset and size of weak binding info. */
unsigned int weak_bind_off;
unsigned int weak_bind_size;
+ unsigned char *weak_bind_content;
/* File offset and size of lazy binding info. */
unsigned int lazy_bind_off;
unsigned int lazy_bind_size;
+ unsigned char *lazy_bind_content;
/* File offset and size of export info. */
unsigned int export_off;
unsigned int export_size;
+ unsigned char *export_content;
}
bfd_mach_o_dyld_info_command;
typedef struct bfd_mach_o_version_min_command
{
- unsigned char rel;
- unsigned char maj;
- unsigned char min;
- unsigned int reserved;
+ uint32_t version;
+ uint32_t sdk;
}
bfd_mach_o_version_min_command;
+typedef struct bfd_mach_o_encryption_info_command
+{
+ unsigned int cryptoff;
+ unsigned int cryptsize;
+ unsigned int cryptid;
+}
+bfd_mach_o_encryption_info_command;
+
+typedef struct bfd_mach_o_main_command
+{
+ bfd_uint64_t entryoff;
+ bfd_uint64_t stacksize;
+}
+bfd_mach_o_main_command;
+
+typedef struct bfd_mach_o_source_version_command
+{
+ unsigned int a;
+ unsigned short b;
+ unsigned short c;
+ unsigned short d;
+ unsigned short e;
+}
+bfd_mach_o_source_version_command;
+
+typedef struct bfd_mach_o_note_command
+{
+ char data_owner[16];
+ bfd_uint64_t offset;
+ bfd_uint64_t size;
+}
+bfd_mach_o_note_command;
+
+typedef struct bfd_mach_o_build_version_tool
+{
+ uint32_t tool;
+ uint32_t version;
+}
+bfd_mach_o_build_version_tool;
+
+typedef struct bfd_mach_o_build_version_command
+{
+ uint32_t platform;
+ uint32_t minos;
+ uint32_t sdk;
+ uint32_t ntools;
+}
+bfd_mach_o_build_version_command;
+
typedef struct bfd_mach_o_load_command
{
+ /* Next command in the single linked list. */
+ struct bfd_mach_o_load_command *next;
+
+ /* Type and required flag. */
bfd_mach_o_load_command_type type;
bfd_boolean type_required;
+
+ /* Offset and length in the file. */
unsigned int offset;
unsigned int len;
+
union
{
bfd_mach_o_segment_command segment;
bfd_mach_o_dylib_command dylib;
bfd_mach_o_dylinker_command dylinker;
bfd_mach_o_prebound_dylib_command prebound_dylib;
+ bfd_mach_o_prebind_cksum_command prebind_cksum;
+ bfd_mach_o_twolevel_hints_command twolevel_hints;
bfd_mach_o_uuid_command uuid;
bfd_mach_o_linkedit_command linkedit;
bfd_mach_o_str_command str;
bfd_mach_o_dyld_info_command dyld_info;
bfd_mach_o_version_min_command version_min;
- }
- command;
+ bfd_mach_o_encryption_info_command encryption_info;
+ bfd_mach_o_fvmlib_command fvmlib;
+ bfd_mach_o_main_command main;
+ bfd_mach_o_source_version_command source_version;
+ bfd_mach_o_note_command note;
+ bfd_mach_o_build_version_command build_version;
+ } command;
}
bfd_mach_o_load_command;
{
/* Mach-O header. */
bfd_mach_o_header header;
+
+ /* File offset of the header. Usually this is 0. */
+ file_ptr hdr_offset;
+
/* Array of load commands (length is given by header.ncmds). */
- bfd_mach_o_load_command *commands;
+ bfd_mach_o_load_command *first_command;
+ bfd_mach_o_load_command *last_command;
/* Flatten array of sections. The array is 0-based. */
unsigned long nsects;
bfd_mach_o_section **sections;
- /* Used while writting: current length of the output file. This is used
+ /* Used while writing: current length of the output file. This is used
to allocate space in the file. */
ufile_ptr filelen;
is expected. */
bfd_mach_o_symtab_command *symtab;
bfd_mach_o_dysymtab_command *dysymtab;
+
+ /* A place to stash dwarf2 info for this bfd. */
+ void *dwarf2_find_line_info;
+
+ /* BFD of .dSYM file. */
+ bfd *dsym_bfd;
+
+ /* Cache of dynamic relocs. */
+ arelent *dyn_reloc_cache;
}
bfd_mach_o_data_struct;
-/* Target specific routines. */
-typedef struct bfd_mach_o_backend_data
+typedef struct bfd_mach_o_xlat_name
{
- enum bfd_architecture arch;
- bfd_boolean (*_bfd_mach_o_swap_reloc_in)(arelent *, bfd_mach_o_reloc_info *);
- bfd_boolean (*_bfd_mach_o_swap_reloc_out)(arelent *, bfd_mach_o_reloc_info *);
- bfd_boolean (*_bfd_mach_o_print_thread)(bfd *, bfd_mach_o_thread_flavour *,
- void *, char *);
+ const char *name;
+ unsigned long val;
}
-bfd_mach_o_backend_data;
+bfd_mach_o_xlat_name;
+
+/* Target specific routines. */
#define bfd_mach_o_get_data(abfd) ((abfd)->tdata.mach_o_data)
#define bfd_mach_o_get_backend_data(abfd) \
bfd_boolean bfd_mach_o_valid (bfd *);
bfd_boolean bfd_mach_o_mkobject_init (bfd *);
-const bfd_target *bfd_mach_o_object_p (bfd *);
-const bfd_target *bfd_mach_o_core_p (bfd *);
-const bfd_target *bfd_mach_o_archive_p (bfd *);
-bfd *bfd_mach_o_openr_next_archived_file (bfd *, bfd *);
+bfd_cleanup bfd_mach_o_object_p (bfd *);
+bfd_cleanup bfd_mach_o_core_p (bfd *);
+bfd_cleanup bfd_mach_o_fat_archive_p (bfd *);
+bfd *bfd_mach_o_fat_openr_next_archived_file (bfd *, bfd *);
bfd_boolean bfd_mach_o_set_arch_mach (bfd *, enum bfd_architecture,
- unsigned long);
+ unsigned long);
int bfd_mach_o_lookup_command (bfd *, bfd_mach_o_load_command_type, bfd_mach_o_load_command **);
bfd_boolean bfd_mach_o_new_section_hook (bfd *, asection *);
bfd_boolean bfd_mach_o_write_contents (bfd *);
bfd_boolean bfd_mach_o_bfd_copy_private_symbol_data (bfd *, asymbol *,
- bfd *, asymbol *);
+ bfd *, asymbol *);
bfd_boolean bfd_mach_o_bfd_copy_private_section_data (bfd *, asection *,
- bfd *, asection *);
-bfd_boolean bfd_mach_o_bfd_copy_private_bfd_data (bfd *, bfd *);
+ bfd *, asection *);
+bfd_boolean bfd_mach_o_bfd_copy_private_header_data (bfd *, bfd *);
+bfd_boolean bfd_mach_o_bfd_set_private_flags (bfd *, flagword);
+bfd_boolean bfd_mach_o_bfd_print_private_bfd_data (bfd *, void *);
long bfd_mach_o_get_symtab_upper_bound (bfd *);
long bfd_mach_o_canonicalize_symtab (bfd *, asymbol **);
-long bfd_mach_o_get_synthetic_symtab (bfd *, long, asymbol **, long,
- asymbol **, asymbol **ret);
+long bfd_mach_o_get_synthetic_symtab (bfd *, long, asymbol **, long,
+ asymbol **, asymbol **ret);
long bfd_mach_o_get_reloc_upper_bound (bfd *, asection *);
long bfd_mach_o_canonicalize_reloc (bfd *, asection *, arelent **, asymbol **);
long bfd_mach_o_get_dynamic_reloc_upper_bound (bfd *);
long bfd_mach_o_canonicalize_dynamic_reloc (bfd *, arelent **, asymbol **);
asymbol *bfd_mach_o_make_empty_symbol (bfd *);
void bfd_mach_o_get_symbol_info (bfd *, asymbol *, symbol_info *);
-void bfd_mach_o_print_symbol (bfd *, PTR, asymbol *, bfd_print_symbol_type);
-bfd_boolean bfd_mach_o_bfd_print_private_bfd_data (bfd *, PTR);
+void bfd_mach_o_print_symbol (bfd *, void *, asymbol *, bfd_print_symbol_type);
int bfd_mach_o_sizeof_headers (bfd *, struct bfd_link_info *);
unsigned long bfd_mach_o_stack_addr (enum bfd_mach_o_cpu_type);
int bfd_mach_o_core_fetch_environment (bfd *, unsigned char **, unsigned int *);
int bfd_mach_o_core_file_failing_signal (bfd *);
bfd_boolean bfd_mach_o_core_file_matches_executable_p (bfd *, bfd *);
bfd *bfd_mach_o_fat_extract (bfd *, bfd_format , const bfd_arch_info_type *);
-const bfd_target *bfd_mach_o_header_p (bfd *, bfd_mach_o_filetype,
- bfd_mach_o_cpu_type);
+bfd_cleanup bfd_mach_o_header_p (bfd *, file_ptr, bfd_mach_o_filetype,
+ bfd_mach_o_cpu_type);
bfd_boolean bfd_mach_o_build_commands (bfd *);
bfd_boolean bfd_mach_o_set_section_contents (bfd *, asection *, const void *,
- file_ptr, bfd_size_type);
+ file_ptr, bfd_size_type);
unsigned int bfd_mach_o_version (bfd *);
-unsigned int bfd_mach_o_get_section_type_from_name (const char *);
+unsigned int bfd_mach_o_get_section_type_from_name (bfd *, const char *);
unsigned int bfd_mach_o_get_section_attribute_from_name (const char *);
-void bfd_mach_o_normalize_section_name (const char *, const char *,
- const char **, flagword *);
+
+void bfd_mach_o_convert_section_name_to_bfd (bfd *, const char *, const char *,
+ const char **, flagword *);
+bfd_boolean bfd_mach_o_find_nearest_line (bfd *, asymbol **,
+ asection *, bfd_vma,
+ const char **, const char **,
+ unsigned int *, unsigned int *);
+#define bfd_mach_o_find_line _bfd_nosymbols_find_line
+bfd_boolean bfd_mach_o_close_and_cleanup (bfd *);
+bfd_boolean bfd_mach_o_free_cached_info (bfd *);
+
+unsigned int bfd_mach_o_section_get_nbr_indirect (bfd *, bfd_mach_o_section *);
+unsigned int bfd_mach_o_section_get_entry_size (bfd *, bfd_mach_o_section *);
+bfd_boolean bfd_mach_o_read_symtab_symbols (bfd *);
+bfd_boolean bfd_mach_o_read_symtab_strtab (bfd *abfd);
+
+bfd_vma bfd_mach_o_get_base_address (bfd *);
+
+void bfd_mach_o_swap_in_non_scattered_reloc (bfd *, bfd_mach_o_reloc_info *,
+ unsigned char *);
+bfd_boolean bfd_mach_o_canonicalize_non_scattered_reloc (bfd *, bfd_mach_o_reloc_info *, arelent *, asymbol **);
+bfd_boolean bfd_mach_o_pre_canonicalize_one_reloc (bfd *, struct mach_o_reloc_info_external *, bfd_mach_o_reloc_info *, arelent *, asymbol **);
+
+/* A placeholder in case we need to suppress emitting the dysymtab for some
+ reason (e.g. compatibility with older system versions). */
+#define bfd_mach_o_should_emit_dysymtab(x) TRUE
+
+extern const bfd_mach_o_xlat_name bfd_mach_o_section_attribute_name[];
+extern const bfd_mach_o_xlat_name bfd_mach_o_section_type_name[];
extern const bfd_target mach_o_fat_vec;
+/* Interfaces between BFD names and Mach-O names. */
+
+typedef struct mach_o_section_name_xlat
+{
+ const char *bfd_name;
+ const char *mach_o_name;
+ flagword bfd_flags;
+ unsigned int macho_sectype;
+ unsigned int macho_secattr;
+ unsigned int sectalign;
+} mach_o_section_name_xlat;
+
+typedef struct mach_o_segment_name_xlat
+{
+ const char *segname;
+ const mach_o_section_name_xlat *sections;
+} mach_o_segment_name_xlat;
+
+const mach_o_section_name_xlat *
+bfd_mach_o_section_data_for_mach_sect (bfd *, const char *, const char *);
+const mach_o_section_name_xlat *
+bfd_mach_o_section_data_for_bfd_name (bfd *, const char *, const char **);
+
+typedef struct bfd_mach_o_backend_data
+{
+ enum bfd_architecture arch;
+ bfd_vma page_size;
+ bfd_boolean (*_bfd_mach_o_canonicalize_one_reloc)
+ (bfd *, struct mach_o_reloc_info_external *, arelent *, asymbol **, arelent *);
+ bfd_boolean (*_bfd_mach_o_swap_reloc_out)(arelent *, bfd_mach_o_reloc_info *);
+ bfd_boolean (*_bfd_mach_o_print_thread)(bfd *, bfd_mach_o_thread_flavour *,
+ void *, char *);
+ const mach_o_segment_name_xlat *segsec_names_xlat;
+ bfd_boolean (*bfd_mach_o_section_type_valid_for_target) (unsigned long);
+}
+bfd_mach_o_backend_data;
+
+/* Values used in symbol.udata.i, to signal that the mach-o-specific data in the
+ symbol are not yet set, or need validation (where this is possible). */
+
+#define SYM_MACHO_FIELDS_UNSET ((bfd_vma) -1)
+#define SYM_MACHO_FIELDS_NOT_VALIDATED ((bfd_vma) -2)
+
+#ifdef __cplusplus
+}
+#endif
+
#endif /* _BFD_MACH_O_H_ */
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