/* Mach-O support for BFD.
- Copyright 1999, 2000, 2001, 2002, 2003, 2005, 2007, 2008, 2009
+ Copyright 1999, 2000, 2001, 2002, 2003, 2005, 2007, 2008, 2009, 2011,
+ 2012
Free Software Foundation, Inc.
This file is part of BFD, the Binary File Descriptor library.
}
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
+
typedef struct bfd_mach_o_section
{
/* Fields present in the file. */
- char sectname[16 + 1];
- char segname[16 + 1];
+ char sectname[BFD_MACH_O_SECTNAME_SIZE + 1]; /* Always NUL padded. */
+ char segname[BFD_MACH_O_SEGNAME_SIZE + 1];
bfd_vma addr;
bfd_vma size;
bfd_vma offset;
/* 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;
}
bfd_mach_o_section;
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;
unsigned long initprot; /* Initial protection. */
unsigned long nsects;
unsigned long flags;
- bfd_mach_o_section *sections;
+
+ /* Linked list of sections. */
+ bfd_mach_o_section *sect_head;
+ bfd_mach_o_section *sect_tail;
}
bfd_mach_o_segment_command;
}
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
{
}
bfd_mach_o_str_command;
+typedef struct bfd_mach_o_fvmlib_command
+{
+ unsigned int name_offset;
+ unsigned int name_len;
+ 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;
/* File offset and size of binding info. */
}
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;
+}
+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_load_command
{
bfd_mach_o_load_command_type type;
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;
+ 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;
}
command;
}
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;
/* As symtab is referenced by other load command, it is handy to have
- a direct access to it. Also it is not clearly stated, only one symtab
+ a direct access to it. Although it is not clearly stated, only one symtab
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_mach_o_backend_data*)(abfd)->xvec->backend_data)
+/* Get the Mach-O header for section SEC. */
+#define bfd_mach_o_get_mach_o_section(sec) \
+ ((bfd_mach_o_section *)(sec)->used_by_bfd)
+
bfd_boolean bfd_mach_o_valid (bfd *);
-int bfd_mach_o_read_dysymtab_symbol (bfd *, bfd_mach_o_dysymtab_command *, bfd_mach_o_symtab_command *, bfd_mach_o_asymbol *, unsigned long);
-int bfd_mach_o_scan_start_address (bfd *);
-int bfd_mach_o_scan (bfd *, bfd_mach_o_header *, bfd_mach_o_data_struct *);
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 *);
bfd *bfd_mach_o_openr_next_archived_file (bfd *, bfd *);
bfd_boolean bfd_mach_o_set_arch_mach (bfd *, enum bfd_architecture,
unsigned long);
-int bfd_mach_o_lookup_section (bfd *, asection *, bfd_mach_o_load_command **, bfd_mach_o_section **);
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_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_boolean bfd_mach_o_bfd_set_private_flags (bfd *, flagword);
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,
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 *);
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 *, asection *, asymbol **,
+ bfd_vma, const char **,
+ const char **, unsigned int *);
+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);
+
+/* 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_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 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)
+
#endif /* _BFD_MACH_O_H_ */
projects / deliverable / binutils-gdb.git / blobdiff