| /* Generic target-file-type support for the BFD library. |
| Copyright 1990, 91, 92, 93, 94, 95, 96, 97, 98, 1999 |
| Free Software Foundation, Inc. |
| Written by 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 |
| (at your option) any later version. |
| |
| This program is distributed in the hope that it will be useful, |
| but WITHOUT ANY WARRANTY; without even the implied warranty of |
| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| GNU General Public License for more details. |
| |
| 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ |
| |
| #include "bfd.h" |
| #include "sysdep.h" |
| #include "libbfd.h" |
| #include "fnmatch.h" |
| |
| /* |
| SECTION |
| Targets |
| |
| DESCRIPTION |
| Each port of BFD to a different machine requries the creation |
| of a target back end. All the back end provides to the root |
| part of BFD is a structure containing pointers to functions |
| which perform certain low level operations on files. BFD |
| translates the applications's requests through a pointer into |
| calls to the back end routines. |
| |
| When a file is opened with <<bfd_openr>>, its format and |
| target are unknown. BFD uses various mechanisms to determine |
| how to interpret the file. The operations performed are: |
| |
| o Create a BFD by calling the internal routine |
| <<_bfd_new_bfd>>, then call <<bfd_find_target>> with the |
| target string supplied to <<bfd_openr>> and the new BFD pointer. |
| |
| o If a null target string was provided to <<bfd_find_target>>, |
| look up the environment variable <<GNUTARGET>> and use |
| that as the target string. |
| |
| o If the target string is still <<NULL>>, or the target string is |
| <<default>>, then use the first item in the target vector |
| as the target type, and set <<target_defaulted>> in the BFD to |
| cause <<bfd_check_format>> to loop through all the targets. |
| @xref{bfd_target}. @xref{Formats}. |
| |
| o Otherwise, inspect the elements in the target vector |
| one by one, until a match on target name is found. When found, |
| use it. |
| |
| o Otherwise return the error <<bfd_error_invalid_target>> to |
| <<bfd_openr>>. |
| |
| o <<bfd_openr>> attempts to open the file using |
| <<bfd_open_file>>, and returns the BFD. |
| |
| Once the BFD has been opened and the target selected, the file |
| format may be determined. This is done by calling |
| <<bfd_check_format>> on the BFD with a suggested format. |
| If <<target_defaulted>> has been set, each possible target |
| type is tried to see if it recognizes the specified format. |
| <<bfd_check_format>> returns <<true>> when the caller guesses right. |
| @menu |
| @* bfd_target:: |
| @end menu |
| */ |
| |
| |
| /* |
| |
| INODE |
| bfd_target, , Targets, Targets |
| DOCDD |
| SUBSECTION |
| bfd_target |
| |
| DESCRIPTION |
| This structure contains everything that BFD knows about a |
| target. It includes things like its byte order, name, and which |
| routines to call to do various operations. |
| |
| Every BFD points to a target structure with its <<xvec>> |
| member. |
| |
| The macros below are used to dispatch to functions through the |
| <<bfd_target>> vector. They are used in a number of macros further |
| down in @file{bfd.h}, and are also used when calling various |
| routines by hand inside the BFD implementation. The @var{arglist} |
| argument must be parenthesized; it contains all the arguments |
| to the called function. |
| |
| They make the documentation (more) unpleasant to read, so if |
| someone wants to fix this and not break the above, please do. |
| |
| .#define BFD_SEND(bfd, message, arglist) \ |
| . ((*((bfd)->xvec->message)) arglist) |
| . |
| .#ifdef DEBUG_BFD_SEND |
| .#undef BFD_SEND |
| .#define BFD_SEND(bfd, message, arglist) \ |
| . (((bfd) && (bfd)->xvec && (bfd)->xvec->message) ? \ |
| . ((*((bfd)->xvec->message)) arglist) : \ |
| . (bfd_assert (__FILE__,__LINE__), NULL)) |
| .#endif |
| |
| For operations which index on the BFD format: |
| |
| .#define BFD_SEND_FMT(bfd, message, arglist) \ |
| . (((bfd)->xvec->message[(int)((bfd)->format)]) arglist) |
| . |
| .#ifdef DEBUG_BFD_SEND |
| .#undef BFD_SEND_FMT |
| .#define BFD_SEND_FMT(bfd, message, arglist) \ |
| . (((bfd) && (bfd)->xvec && (bfd)->xvec->message) ? \ |
| . (((bfd)->xvec->message[(int)((bfd)->format)]) arglist) : \ |
| . (bfd_assert (__FILE__,__LINE__), NULL)) |
| .#endif |
| |
| This is the structure which defines the type of BFD this is. The |
| <<xvec>> member of the struct <<bfd>> itself points here. Each |
| module that implements access to a different target under BFD, |
| defines one of these. |
| |
| |
| FIXME, these names should be rationalised with the names of |
| the entry points which call them. Too bad we can't have one |
| macro to define them both! |
| |
| .enum bfd_flavour { |
| . bfd_target_unknown_flavour, |
| . bfd_target_aout_flavour, |
| . bfd_target_coff_flavour, |
| . bfd_target_ecoff_flavour, |
| . bfd_target_elf_flavour, |
| . bfd_target_ieee_flavour, |
| . bfd_target_nlm_flavour, |
| . bfd_target_oasys_flavour, |
| . bfd_target_tekhex_flavour, |
| . bfd_target_srec_flavour, |
| . bfd_target_ihex_flavour, |
| . bfd_target_som_flavour, |
| . bfd_target_os9k_flavour, |
| . bfd_target_versados_flavour, |
| . bfd_target_msdos_flavour, |
| . bfd_target_ovax_flavour, |
| . bfd_target_evax_flavour |
| .}; |
| . |
| .enum bfd_endian { BFD_ENDIAN_BIG, BFD_ENDIAN_LITTLE, BFD_ENDIAN_UNKNOWN }; |
| . |
| .{* Forward declaration. *} |
| .typedef struct bfd_link_info _bfd_link_info; |
| . |
| .typedef struct bfd_target |
| .{ |
| |
| Identifies the kind of target, e.g., SunOS4, Ultrix, etc. |
| |
| . char *name; |
| |
| The "flavour" of a back end is a general indication about the contents |
| of a file. |
| |
| . enum bfd_flavour flavour; |
| |
| The order of bytes within the data area of a file. |
| |
| . enum bfd_endian byteorder; |
| |
| The order of bytes within the header parts of a file. |
| |
| . enum bfd_endian header_byteorder; |
| |
| A mask of all the flags which an executable may have set - |
| from the set <<BFD_NO_FLAGS>>, <<HAS_RELOC>>, ...<<D_PAGED>>. |
| |
| . flagword object_flags; |
| |
| A mask of all the flags which a section may have set - from |
| the set <<SEC_NO_FLAGS>>, <<SEC_ALLOC>>, ...<<SET_NEVER_LOAD>>. |
| |
| . flagword section_flags; |
| |
| The character normally found at the front of a symbol |
| (if any), perhaps `_'. |
| |
| . char symbol_leading_char; |
| |
| The pad character for file names within an archive header. |
| |
| . char ar_pad_char; |
| |
| The maximum number of characters in an archive header. |
| |
| . unsigned short ar_max_namelen; |
| |
| Entries for byte swapping for data. These are different from the other |
| entry points, since they don't take a BFD asthe first argument. |
| Certain other handlers could do the same. |
| |
| . bfd_vma (*bfd_getx64) PARAMS ((const bfd_byte *)); |
| . bfd_signed_vma (*bfd_getx_signed_64) PARAMS ((const bfd_byte *)); |
| . void (*bfd_putx64) PARAMS ((bfd_vma, bfd_byte *)); |
| . bfd_vma (*bfd_getx32) PARAMS ((const bfd_byte *)); |
| . bfd_signed_vma (*bfd_getx_signed_32) PARAMS ((const bfd_byte *)); |
| . void (*bfd_putx32) PARAMS ((bfd_vma, bfd_byte *)); |
| . bfd_vma (*bfd_getx16) PARAMS ((const bfd_byte *)); |
| . bfd_signed_vma (*bfd_getx_signed_16) PARAMS ((const bfd_byte *)); |
| . void (*bfd_putx16) PARAMS ((bfd_vma, bfd_byte *)); |
| |
| Byte swapping for the headers |
| |
| . bfd_vma (*bfd_h_getx64) PARAMS ((const bfd_byte *)); |
| . bfd_signed_vma (*bfd_h_getx_signed_64) PARAMS ((const bfd_byte *)); |
| . void (*bfd_h_putx64) PARAMS ((bfd_vma, bfd_byte *)); |
| . bfd_vma (*bfd_h_getx32) PARAMS ((const bfd_byte *)); |
| . bfd_signed_vma (*bfd_h_getx_signed_32) PARAMS ((const bfd_byte *)); |
| . void (*bfd_h_putx32) PARAMS ((bfd_vma, bfd_byte *)); |
| . bfd_vma (*bfd_h_getx16) PARAMS ((const bfd_byte *)); |
| . bfd_signed_vma (*bfd_h_getx_signed_16) PARAMS ((const bfd_byte *)); |
| . void (*bfd_h_putx16) PARAMS ((bfd_vma, bfd_byte *)); |
| |
| Format dependent routines: these are vectors of entry points |
| within the target vector structure, one for each format to check. |
| |
| Check the format of a file being read. Return a <<bfd_target *>> or zero. |
| |
| . const struct bfd_target *(*_bfd_check_format[bfd_type_end]) PARAMS ((bfd *)); |
| |
| Set the format of a file being written. |
| |
| . boolean (*_bfd_set_format[bfd_type_end]) PARAMS ((bfd *)); |
| |
| Write cached information into a file being written, at <<bfd_close>>. |
| |
| . boolean (*_bfd_write_contents[bfd_type_end]) PARAMS ((bfd *)); |
| |
| The general target vector. |
| |
| . |
| . {* Generic entry points. *} |
| .#define BFD_JUMP_TABLE_GENERIC(NAME)\ |
| .CAT(NAME,_close_and_cleanup),\ |
| .CAT(NAME,_bfd_free_cached_info),\ |
| .CAT(NAME,_new_section_hook),\ |
| .CAT(NAME,_get_section_contents),\ |
| .CAT(NAME,_get_section_contents_in_window) |
| . |
| . {* Called when the BFD is being closed to do any necessary cleanup. *} |
| . boolean (*_close_and_cleanup) PARAMS ((bfd *)); |
| . {* Ask the BFD to free all cached information. *} |
| . boolean (*_bfd_free_cached_info) PARAMS ((bfd *)); |
| . {* Called when a new section is created. *} |
| . boolean (*_new_section_hook) PARAMS ((bfd *, sec_ptr)); |
| . {* Read the contents of a section. *} |
| . boolean (*_bfd_get_section_contents) PARAMS ((bfd *, sec_ptr, PTR, |
| . file_ptr, bfd_size_type)); |
| . boolean (*_bfd_get_section_contents_in_window) |
| . PARAMS ((bfd *, sec_ptr, bfd_window *, |
| . file_ptr, bfd_size_type)); |
| . |
| . {* Entry points to copy private data. *} |
| .#define BFD_JUMP_TABLE_COPY(NAME)\ |
| .CAT(NAME,_bfd_copy_private_bfd_data),\ |
| .CAT(NAME,_bfd_merge_private_bfd_data),\ |
| .CAT(NAME,_bfd_copy_private_section_data),\ |
| .CAT(NAME,_bfd_copy_private_symbol_data),\ |
| .CAT(NAME,_bfd_set_private_flags),\ |
| .CAT(NAME,_bfd_print_private_bfd_data)\ |
| . {* Called to copy BFD general private data from one object file |
| . to another. *} |
| . boolean (*_bfd_copy_private_bfd_data) PARAMS ((bfd *, bfd *)); |
| . {* Called to merge BFD general private data from one object file |
| . to a common output file when linking. *} |
| . boolean (*_bfd_merge_private_bfd_data) PARAMS ((bfd *, bfd *)); |
| . {* Called to copy BFD private section data from one object file |
| . to another. *} |
| . boolean (*_bfd_copy_private_section_data) PARAMS ((bfd *, sec_ptr, |
| . bfd *, sec_ptr)); |
| . {* Called to copy BFD private symbol data from one symbol |
| . to another. *} |
| . boolean (*_bfd_copy_private_symbol_data) PARAMS ((bfd *, asymbol *, |
| . bfd *, asymbol *)); |
| . {* Called to set private backend flags *} |
| . boolean (*_bfd_set_private_flags) PARAMS ((bfd *, flagword)); |
| . |
| . {* Called to print private BFD data *} |
| . boolean (*_bfd_print_private_bfd_data) PARAMS ((bfd *, PTR)); |
| . |
| . {* Core file entry points. *} |
| .#define BFD_JUMP_TABLE_CORE(NAME)\ |
| .CAT(NAME,_core_file_failing_command),\ |
| .CAT(NAME,_core_file_failing_signal),\ |
| .CAT(NAME,_core_file_matches_executable_p) |
| . char * (*_core_file_failing_command) PARAMS ((bfd *)); |
| . int (*_core_file_failing_signal) PARAMS ((bfd *)); |
| . boolean (*_core_file_matches_executable_p) PARAMS ((bfd *, bfd *)); |
| . |
| . {* Archive entry points. *} |
| .#define BFD_JUMP_TABLE_ARCHIVE(NAME)\ |
| .CAT(NAME,_slurp_armap),\ |
| .CAT(NAME,_slurp_extended_name_table),\ |
| .CAT(NAME,_construct_extended_name_table),\ |
| .CAT(NAME,_truncate_arname),\ |
| .CAT(NAME,_write_armap),\ |
| .CAT(NAME,_read_ar_hdr),\ |
| .CAT(NAME,_openr_next_archived_file),\ |
| .CAT(NAME,_get_elt_at_index),\ |
| .CAT(NAME,_generic_stat_arch_elt),\ |
| .CAT(NAME,_update_armap_timestamp) |
| . boolean (*_bfd_slurp_armap) PARAMS ((bfd *)); |
| . boolean (*_bfd_slurp_extended_name_table) PARAMS ((bfd *)); |
| . boolean (*_bfd_construct_extended_name_table) |
| . PARAMS ((bfd *, char **, bfd_size_type *, const char **)); |
| . void (*_bfd_truncate_arname) PARAMS ((bfd *, CONST char *, char *)); |
| . boolean (*write_armap) PARAMS ((bfd *arch, |
| . unsigned int elength, |
| . struct orl *map, |
| . unsigned int orl_count, |
| . int stridx)); |
| . PTR (*_bfd_read_ar_hdr_fn) PARAMS ((bfd *)); |
| . bfd * (*openr_next_archived_file) PARAMS ((bfd *arch, bfd *prev)); |
| .#define bfd_get_elt_at_index(b,i) BFD_SEND(b, _bfd_get_elt_at_index, (b,i)) |
| . bfd * (*_bfd_get_elt_at_index) PARAMS ((bfd *, symindex)); |
| . int (*_bfd_stat_arch_elt) PARAMS ((bfd *, struct stat *)); |
| . boolean (*_bfd_update_armap_timestamp) PARAMS ((bfd *)); |
| . |
| . {* Entry points used for symbols. *} |
| .#define BFD_JUMP_TABLE_SYMBOLS(NAME)\ |
| .CAT(NAME,_get_symtab_upper_bound),\ |
| .CAT(NAME,_get_symtab),\ |
| .CAT(NAME,_make_empty_symbol),\ |
| .CAT(NAME,_print_symbol),\ |
| .CAT(NAME,_get_symbol_info),\ |
| .CAT(NAME,_bfd_is_local_label_name),\ |
| .CAT(NAME,_get_lineno),\ |
| .CAT(NAME,_find_nearest_line),\ |
| .CAT(NAME,_bfd_make_debug_symbol),\ |
| .CAT(NAME,_read_minisymbols),\ |
| .CAT(NAME,_minisymbol_to_symbol) |
| . long (*_bfd_get_symtab_upper_bound) PARAMS ((bfd *)); |
| . long (*_bfd_canonicalize_symtab) PARAMS ((bfd *, |
| . struct symbol_cache_entry **)); |
| . struct symbol_cache_entry * |
| . (*_bfd_make_empty_symbol) PARAMS ((bfd *)); |
| . void (*_bfd_print_symbol) PARAMS ((bfd *, PTR, |
| . struct symbol_cache_entry *, |
| . bfd_print_symbol_type)); |
| .#define bfd_print_symbol(b,p,s,e) BFD_SEND(b, _bfd_print_symbol, (b,p,s,e)) |
| . void (*_bfd_get_symbol_info) PARAMS ((bfd *, |
| . struct symbol_cache_entry *, |
| . symbol_info *)); |
| .#define bfd_get_symbol_info(b,p,e) BFD_SEND(b, _bfd_get_symbol_info, (b,p,e)) |
| . boolean (*_bfd_is_local_label_name) PARAMS ((bfd *, const char *)); |
| . |
| . alent * (*_get_lineno) PARAMS ((bfd *, struct symbol_cache_entry *)); |
| . boolean (*_bfd_find_nearest_line) PARAMS ((bfd *abfd, |
| . struct sec *section, struct symbol_cache_entry **symbols, |
| . bfd_vma offset, CONST char **file, CONST char **func, |
| . unsigned int *line)); |
| . {* Back-door to allow format-aware applications to create debug symbols |
| . while using BFD for everything else. Currently used by the assembler |
| . when creating COFF files. *} |
| . asymbol * (*_bfd_make_debug_symbol) PARAMS (( |
| . bfd *abfd, |
| . void *ptr, |
| . unsigned long size)); |
| .#define bfd_read_minisymbols(b, d, m, s) \ |
| . BFD_SEND (b, _read_minisymbols, (b, d, m, s)) |
| . long (*_read_minisymbols) PARAMS ((bfd *, boolean, PTR *, |
| . unsigned int *)); |
| .#define bfd_minisymbol_to_symbol(b, d, m, f) \ |
| . BFD_SEND (b, _minisymbol_to_symbol, (b, d, m, f)) |
| . asymbol *(*_minisymbol_to_symbol) PARAMS ((bfd *, boolean, const PTR, |
| . asymbol *)); |
| . |
| . {* Routines for relocs. *} |
| .#define BFD_JUMP_TABLE_RELOCS(NAME)\ |
| .CAT(NAME,_get_reloc_upper_bound),\ |
| .CAT(NAME,_canonicalize_reloc),\ |
| .CAT(NAME,_bfd_reloc_type_lookup) |
| . long (*_get_reloc_upper_bound) PARAMS ((bfd *, sec_ptr)); |
| . long (*_bfd_canonicalize_reloc) PARAMS ((bfd *, sec_ptr, arelent **, |
| . struct symbol_cache_entry **)); |
| . {* See documentation on reloc types. *} |
| . reloc_howto_type * |
| . (*reloc_type_lookup) PARAMS ((bfd *abfd, |
| . bfd_reloc_code_real_type code)); |
| . |
| . {* Routines used when writing an object file. *} |
| .#define BFD_JUMP_TABLE_WRITE(NAME)\ |
| .CAT(NAME,_set_arch_mach),\ |
| .CAT(NAME,_set_section_contents) |
| . boolean (*_bfd_set_arch_mach) PARAMS ((bfd *, enum bfd_architecture, |
| . unsigned long)); |
| . boolean (*_bfd_set_section_contents) PARAMS ((bfd *, sec_ptr, PTR, |
| . file_ptr, bfd_size_type)); |
| . |
| . {* Routines used by the linker. *} |
| .#define BFD_JUMP_TABLE_LINK(NAME)\ |
| .CAT(NAME,_sizeof_headers),\ |
| .CAT(NAME,_bfd_get_relocated_section_contents),\ |
| .CAT(NAME,_bfd_relax_section),\ |
| .CAT(NAME,_bfd_link_hash_table_create),\ |
| .CAT(NAME,_bfd_link_add_symbols),\ |
| .CAT(NAME,_bfd_final_link),\ |
| .CAT(NAME,_bfd_link_split_section),\ |
| .CAT(NAME,_bfd_gc_sections) |
| . int (*_bfd_sizeof_headers) PARAMS ((bfd *, boolean)); |
| . bfd_byte * (*_bfd_get_relocated_section_contents) PARAMS ((bfd *, |
| . struct bfd_link_info *, struct bfd_link_order *, |
| . bfd_byte *data, boolean relocateable, |
| . struct symbol_cache_entry **)); |
| . |
| . boolean (*_bfd_relax_section) PARAMS ((bfd *, struct sec *, |
| . struct bfd_link_info *, boolean *again)); |
| . |
| . {* Create a hash table for the linker. Different backends store |
| . different information in this table. *} |
| . struct bfd_link_hash_table *(*_bfd_link_hash_table_create) PARAMS ((bfd *)); |
| . |
| . {* Add symbols from this object file into the hash table. *} |
| . boolean (*_bfd_link_add_symbols) PARAMS ((bfd *, struct bfd_link_info *)); |
| . |
| . {* Do a link based on the link_order structures attached to each |
| . section of the BFD. *} |
| . boolean (*_bfd_final_link) PARAMS ((bfd *, struct bfd_link_info *)); |
| . |
| . {* Should this section be split up into smaller pieces during linking. *} |
| . boolean (*_bfd_link_split_section) PARAMS ((bfd *, struct sec *)); |
| . |
| . {* Remove sections that are not referenced from the output. *} |
| . boolean (*_bfd_gc_sections) PARAMS ((bfd *, struct bfd_link_info *)); |
| . |
| . {* Routines to handle dynamic symbols and relocs. *} |
| .#define BFD_JUMP_TABLE_DYNAMIC(NAME)\ |
| .CAT(NAME,_get_dynamic_symtab_upper_bound),\ |
| .CAT(NAME,_canonicalize_dynamic_symtab),\ |
| .CAT(NAME,_get_dynamic_reloc_upper_bound),\ |
| .CAT(NAME,_canonicalize_dynamic_reloc) |
| . {* Get the amount of memory required to hold the dynamic symbols. *} |
| . long (*_bfd_get_dynamic_symtab_upper_bound) PARAMS ((bfd *)); |
| . {* Read in the dynamic symbols. *} |
| . long (*_bfd_canonicalize_dynamic_symtab) |
| . PARAMS ((bfd *, struct symbol_cache_entry **)); |
| . {* Get the amount of memory required to hold the dynamic relocs. *} |
| . long (*_bfd_get_dynamic_reloc_upper_bound) PARAMS ((bfd *)); |
| . {* Read in the dynamic relocs. *} |
| . long (*_bfd_canonicalize_dynamic_reloc) |
| . PARAMS ((bfd *, arelent **, struct symbol_cache_entry **)); |
| . |
| |
| Data for use by back-end routines, which isn't generic enough to belong |
| in this structure. |
| |
| . PTR backend_data; |
| .} bfd_target; |
| |
| */ |
| |
| /* All known xvecs (even those that don't compile on all systems). |
| Alphabetized for easy reference. |
| They are listed a second time below, since |
| we can't intermix extern's and initializers. */ |
| extern const bfd_target a29kcoff_big_vec; |
| extern const bfd_target a_out_adobe_vec; |
| extern const bfd_target aout_arm_big_vec; |
| extern const bfd_target aout_arm_little_vec; |
| extern const bfd_target aout_mips_big_vec; |
| extern const bfd_target aout_mips_little_vec; |
| extern const bfd_target aout0_big_vec; |
| extern const bfd_target apollocoff_vec; |
| extern const bfd_target armcoff_little_vec; |
| extern const bfd_target armcoff_big_vec; |
| extern const bfd_target armpe_little_vec; |
| extern const bfd_target armpe_big_vec; |
| extern const bfd_target armpei_little_vec; |
| extern const bfd_target armpei_big_vec; |
| extern const bfd_target arm_epoc_pe_little_vec; |
| extern const bfd_target arm_epoc_pe_big_vec; |
| extern const bfd_target arm_epoc_pei_little_vec; |
| extern const bfd_target arm_epoc_pei_big_vec; |
| extern const bfd_target b_out_vec_big_host; |
| extern const bfd_target b_out_vec_little_host; |
| extern const bfd_target bfd_elf64_alpha_vec; |
| extern const bfd_target bfd_elf32_bigarc_vec; |
| extern const bfd_target bfd_elf32_bigarm_vec; |
| extern const bfd_target bfd_elf32_bigarm_oabi_vec; |
| extern const bfd_target bfd_elf32_littlearc_vec; |
| extern const bfd_target bfd_elf32_littlearm_vec; |
| extern const bfd_target bfd_elf32_littlearm_oabi_vec; |
| extern const bfd_target bfd_elf32_big_generic_vec; |
| extern const bfd_target bfd_elf32_bigmips_vec; |
| extern const bfd_target bfd_elf64_bigmips_vec; |
| extern const bfd_target bfd_elf32_d10v_vec; |
| extern const bfd_target bfd_elf32_d30v_vec; |
| extern const bfd_target bfd_elf32_hppa_vec; |
| extern const bfd_target bfd_elf32_i386_vec; |
| extern const bfd_target bfd_elf32_i860_vec; |
| extern const bfd_target bfd_elf32_i960_vec; |
| extern const bfd_target bfd_elf32_little_generic_vec; |
| extern const bfd_target bfd_elf32_littlemips_vec; |
| extern const bfd_target bfd_elf64_littlemips_vec; |
| extern const bfd_target bfd_elf32_m32r_vec; |
| extern const bfd_target bfd_elf32_m68k_vec; |
| extern const bfd_target bfd_elf32_m88k_vec; |
| extern const bfd_target bfd_elf32_mn10200_vec; |
| extern const bfd_target bfd_elf32_mn10300_vec; |
| extern const bfd_target bfd_elf32_powerpc_vec; |
| extern const bfd_target bfd_elf32_powerpcle_vec; |
| extern const bfd_target bfd_elf32_sh_vec; |
| extern const bfd_target bfd_elf32_shl_vec; |
| extern const bfd_target bfd_elf32_sparc_vec; |
| extern const bfd_target bfd_elf32_v850_vec; |
| extern const bfd_target bfd_elf32_fr30_vec; |
| extern const bfd_target bfd_elf32_mcore_big_vec; |
| extern const bfd_target bfd_elf32_mcore_little_vec; |
| extern const bfd_target bfd_elf64_big_generic_vec; |
| extern const bfd_target bfd_elf64_little_generic_vec; |
| extern const bfd_target bfd_elf64_sparc_vec; |
| extern const bfd_target demo_64_vec; |
| extern const bfd_target ecoff_big_vec; |
| extern const bfd_target ecoff_little_vec; |
| extern const bfd_target ecoff_biglittle_vec; |
| extern const bfd_target ecoffalpha_little_vec; |
| extern const bfd_target h8300coff_vec; |
| extern const bfd_target h8500coff_vec; |
| extern const bfd_target host_aout_vec; |
| extern const bfd_target hp300bsd_vec; |
| extern const bfd_target hp300hpux_vec; |
| extern const bfd_target som_vec; |
| extern const bfd_target i386aout_vec; |
| extern const bfd_target i386bsd_vec; |
| extern const bfd_target i386dynix_vec; |
| extern const bfd_target i386freebsd_vec; |
| extern const bfd_target i386os9k_vec; |
| extern const bfd_target i386coff_vec; |
| extern const bfd_target bfd_powerpc_pe_vec; |
| extern const bfd_target bfd_powerpcle_pe_vec; |
| extern const bfd_target bfd_powerpc_pei_vec; |
| extern const bfd_target bfd_powerpcle_pei_vec; |
| extern const bfd_target i386pe_vec; |
| extern const bfd_target i386pei_vec; |
| extern const bfd_target go32coff_vec; |
| extern const bfd_target go32stubbedcoff_vec; |
| extern const bfd_target i386linux_vec; |
| extern const bfd_target i386lynx_aout_vec; |
| extern const bfd_target i386lynx_coff_vec; |
| extern const bfd_target i386mach3_vec; |
| extern const bfd_target i386msdos_vec; |
| extern const bfd_target i386netbsd_vec; |
| extern const bfd_target i860coff_vec; |
| extern const bfd_target icoff_big_vec; |
| extern const bfd_target icoff_little_vec; |
| extern const bfd_target ieee_vec; |
| extern const bfd_target m68kaux_coff_vec; |
| extern const bfd_target m68kcoff_vec; |
| extern const bfd_target m68kcoffun_vec; |
| extern const bfd_target m68klinux_vec; |
| extern const bfd_target m68klynx_aout_vec; |
| extern const bfd_target m68klynx_coff_vec; |
| extern const bfd_target m68knetbsd_vec; |
| extern const bfd_target m68ksysvcoff_vec; |
| extern const bfd_target m68k4knetbsd_vec; |
| extern const bfd_target m88kbcs_vec; |
| extern const bfd_target m88kmach3_vec; |
| extern const bfd_target mcore_pe_big_vec; |
| extern const bfd_target mcore_pe_little_vec; |
| extern const bfd_target mcore_pei_big_vec; |
| extern const bfd_target mcore_pei_little_vec; |
| extern const bfd_target newsos3_vec; |
| extern const bfd_target nlm32_i386_vec; |
| extern const bfd_target nlm32_sparc_vec; |
| extern const bfd_target nlm32_alpha_vec; |
| extern const bfd_target nlm32_powerpc_vec; |
| extern const bfd_target pc532netbsd_vec; |
| extern const bfd_target oasys_vec; |
| extern const bfd_target pc532machaout_vec; |
| extern const bfd_target ppcboot_vec; |
| extern const bfd_target riscix_vec; |
| extern const bfd_target pmac_xcoff_vec; |
| extern const bfd_target rs6000coff_vec; |
| extern const bfd_target shcoff_vec; |
| extern const bfd_target shlcoff_vec; |
| extern const bfd_target shcoff_small_vec; |
| extern const bfd_target shlcoff_small_vec; |
| extern const bfd_target sparcle_aout_vec; |
| extern const bfd_target sparclinux_vec; |
| extern const bfd_target sparclynx_aout_vec; |
| extern const bfd_target sparclynx_coff_vec; |
| extern const bfd_target sparcnetbsd_vec; |
| extern const bfd_target sparccoff_vec; |
| extern const bfd_target sunos_big_vec; |
| extern const bfd_target tekhex_vec; |
| extern const bfd_target tic30_aout_vec; |
| extern const bfd_target tic30_coff_vec; |
| extern const bfd_target tic80coff_vec; |
| extern const bfd_target vaxnetbsd_vec; |
| extern const bfd_target versados_vec; |
| extern const bfd_target vms_alpha_vec; |
| extern const bfd_target vms_vax_vec; |
| extern const bfd_target we32kcoff_vec; |
| extern const bfd_target w65_vec; |
| extern const bfd_target z8kcoff_vec; |
| |
| /* srec is always included. */ |
| extern const bfd_target srec_vec; |
| extern const bfd_target symbolsrec_vec; |
| |
| /* binary is always included. */ |
| extern const bfd_target binary_vec; |
| |
| /* ihex is always included. */ |
| extern const bfd_target ihex_vec; |
| |
| /* All of the xvecs for core files. */ |
| extern const bfd_target aix386_core_vec; |
| extern const bfd_target cisco_core_vec; |
| extern const bfd_target hpux_core_vec; |
| extern const bfd_target hppabsd_core_vec; |
| extern const bfd_target irix_core_vec; |
| extern const bfd_target netbsd_core_vec; |
| extern const bfd_target osf_core_vec; |
| extern const bfd_target sco5_core_vec; |
| extern const bfd_target trad_core_vec; |
| extern const bfd_target ptrace_core_vec; |
| |
| const bfd_target * const bfd_target_vector[] = { |
| |
| #ifdef SELECT_VECS |
| |
| SELECT_VECS, |
| |
| #else /* not SELECT_VECS */ |
| |
| #ifdef DEFAULT_VECTOR |
| &DEFAULT_VECTOR, |
| #endif |
| /* This list is alphabetized to make it easy to compare |
| with other vector lists -- the decls above and |
| the case statement in configure.in. |
| Vectors that don't compile on all systems, or aren't finished, |
| should have an entry here with #if 0 around it, to show that |
| it wasn't omitted by mistake. */ |
| &a29kcoff_big_vec, |
| &a_out_adobe_vec, |
| #if 0 /* No one seems to use this. */ |
| &aout_mips_big_vec, |
| #endif |
| &aout_mips_little_vec, |
| &b_out_vec_big_host, |
| &b_out_vec_little_host, |
| |
| /* This, and other vectors, may not be used in any *.mt configuration. |
| But that does not mean they are unnecessary. If configured with |
| --enable-targets=all, objdump or gdb should be able to examine |
| the file even if we don't recognize the machine type. */ |
| &bfd_elf32_big_generic_vec, |
| #ifdef BFD64 |
| &bfd_elf64_alpha_vec, |
| #endif |
| &bfd_elf32_bigarc_vec, |
| &bfd_elf32_bigarm_vec, |
| &bfd_elf32_bigarm_oabi_vec, |
| &bfd_elf32_bigmips_vec, |
| #ifdef BFD64 |
| &bfd_elf64_bigmips_vec, |
| #endif |
| &bfd_elf32_d10v_vec, |
| &bfd_elf32_d30v_vec, |
| &bfd_elf32_hppa_vec, |
| &bfd_elf32_i386_vec, |
| &bfd_elf32_i860_vec, |
| &bfd_elf32_i960_vec, |
| &bfd_elf32_little_generic_vec, |
| &bfd_elf32_littlearc_vec, |
| &bfd_elf32_littlearm_vec, |
| &bfd_elf32_littlearm_oabi_vec, |
| &bfd_elf32_littlemips_vec, |
| #ifdef BFD64 |
| &bfd_elf64_littlemips_vec, |
| #endif |
| &bfd_elf32_m32r_vec, |
| &bfd_elf32_mn10200_vec, |
| &bfd_elf32_mn10300_vec, |
| &bfd_elf32_m68k_vec, |
| &bfd_elf32_m88k_vec, |
| &bfd_elf32_sparc_vec, |
| &bfd_elf32_powerpc_vec, |
| &bfd_elf32_powerpcle_vec, |
| &bfd_elf32_v850_vec, |
| &bfd_elf32_fr30_vec, |
| &bfd_elf32_mcore_big_vec, |
| &bfd_elf32_mcore_little_vec, |
| #ifdef BFD64 /* No one seems to use this. */ |
| &bfd_elf64_big_generic_vec, |
| &bfd_elf64_little_generic_vec, |
| #endif |
| #if 0 |
| &bfd_elf64_sparc_vec, |
| #endif |
| /* We don't include cisco_core_vec. Although it has a magic number, |
| the magic number isn't at the beginning of the file, and thus |
| might spuriously match other kinds of files. */ |
| #ifdef BFD64 |
| &demo_64_vec, /* Only compiled if host has long-long support */ |
| #endif |
| &ecoff_big_vec, |
| &ecoff_little_vec, |
| &ecoff_biglittle_vec, |
| #ifdef BFD64 |
| &ecoffalpha_little_vec, |
| #endif |
| &h8300coff_vec, |
| &h8500coff_vec, |
| #if 0 |
| /* Since a.out files lack decent magic numbers, no way to recognize |
| which kind of a.out file it is. */ |
| &host_aout_vec, |
| #endif |
| #if 0 /* Clashes with sunos_big_vec magic no. */ |
| &hp300bsd_vec, |
| #endif |
| &hp300hpux_vec, |
| #if defined (HOST_HPPAHPUX) || defined (HOST_HPPABSD) || defined (HOST_HPPAOSF) |
| &som_vec, |
| #endif |
| &i386aout_vec, |
| &i386bsd_vec, |
| &i386coff_vec, |
| &i386freebsd_vec, |
| &i860coff_vec, |
| &bfd_powerpc_pe_vec, |
| &bfd_powerpcle_pe_vec, |
| &bfd_powerpc_pei_vec, |
| &bfd_powerpcle_pei_vec, |
| &go32coff_vec, |
| &go32stubbedcoff_vec, |
| #if 0 |
| /* Since a.out files lack decent magic numbers, no way to recognize |
| which kind of a.out file it is. */ |
| &i386linux_vec, |
| #endif |
| &i386lynx_aout_vec, |
| &i386lynx_coff_vec, |
| #if 0 |
| /* No distinguishing features for Mach 3 executables. */ |
| &i386mach3_vec, |
| #endif |
| &i386msdos_vec, |
| &i386netbsd_vec, |
| &i386os9k_vec, |
| &i386pe_vec, |
| &i386pei_vec, |
| &armcoff_little_vec, |
| &armcoff_big_vec, |
| &armpe_little_vec, |
| &armpe_big_vec, |
| &armpei_little_vec, |
| &armpei_big_vec, |
| &arm_epoc_pe_little_vec, |
| &arm_epoc_pe_big_vec, |
| &arm_epoc_pei_little_vec, |
| &arm_epoc_pei_big_vec, |
| &icoff_big_vec, |
| &icoff_little_vec, |
| &ieee_vec, |
| &m68kcoff_vec, |
| &m68kcoffun_vec, |
| #if 0 |
| /* Since a.out files lack decent magic numbers, no way to recognize |
| which kind of a.out file it is. */ |
| &m68klinux_vec, |
| #endif |
| &m68klynx_aout_vec, |
| &m68klynx_coff_vec, |
| &m68knetbsd_vec, |
| &m68ksysvcoff_vec, |
| &m88kbcs_vec, |
| &m88kmach3_vec, |
| &mcore_pe_big_vec, |
| &mcore_pe_little_vec, |
| &mcore_pei_big_vec, |
| &mcore_pei_little_vec, |
| &newsos3_vec, |
| &nlm32_i386_vec, |
| &nlm32_sparc_vec, |
| #ifdef BFD64 |
| &nlm32_alpha_vec, |
| #endif |
| &pc532netbsd_vec, |
| #if 0 |
| /* We have no oasys tools anymore, so we can't test any of this |
| anymore. If you want to test the stuff yourself, go ahead... |
| steve@cygnus.com |
| Worse, since there is no magic number for archives, there |
| can be annoying target mis-matches. */ |
| &oasys_vec, |
| #endif |
| &pc532machaout_vec, |
| #if 0 |
| /* We have no way of distinguishing these from other a.out variants */ |
| &aout_arm_big_vec, |
| &aout_arm_little_vec, |
| &riscix_vec, |
| #endif |
| #if 0 |
| /* This has the same magic number as RS/6000. */ |
| &pmac_xcoff_vec, |
| #endif |
| &rs6000coff_vec, |
| &ppcboot_vec, |
| &shcoff_vec, |
| &shlcoff_vec, |
| &shcoff_small_vec, |
| &shlcoff_small_vec, |
| &sparcle_aout_vec, |
| &sparclinux_vec, |
| &sparclynx_aout_vec, |
| &sparclynx_coff_vec, |
| &sparcnetbsd_vec, |
| &sunos_big_vec, |
| &aout0_big_vec, |
| &tic30_aout_vec, |
| &tic30_coff_vec, |
| &tic80coff_vec, |
| &vaxnetbsd_vec, |
| &versados_vec, |
| #ifdef BFD64 |
| &vms_alpha_vec, |
| #endif |
| &vms_vax_vec, |
| &we32kcoff_vec, |
| &z8kcoff_vec, |
| |
| #endif /* not SELECT_VECS */ |
| |
| /* Always support S-records, for convenience. */ |
| &srec_vec, |
| &symbolsrec_vec, |
| /* And tekhex */ |
| &tekhex_vec, |
| /* Likewise for binary output. */ |
| &binary_vec, |
| /* Likewise for ihex. */ |
| &ihex_vec, |
| |
| /* Add any required traditional-core-file-handler. */ |
| |
| #ifdef AIX386_CORE |
| &aix386_core_vec, |
| #endif |
| #ifdef HPUX_CORE |
| &hpux_core_vec, |
| #endif |
| #ifdef HPPABSD_CORE |
| &hppabsd_core_vec, |
| #endif |
| #ifdef IRIX_CORE |
| &irix_core_vec, |
| #endif |
| #ifdef NETBSD_CORE |
| &netbsd_core_vec, |
| #endif |
| #ifdef OSF_CORE |
| &osf_core_vec, |
| #endif |
| #ifdef SCO5_CORE |
| &sco5_core_vec, |
| #endif |
| #ifdef TRAD_CORE |
| &trad_core_vec, |
| #endif |
| |
| #ifdef PTRACE_CORE |
| &ptrace_core_vec, |
| #endif |
| |
| NULL /* end of list marker */ |
| }; |
| |
| /* bfd_default_vector[0] contains either the address of the default vector, |
| if there is one, or zero if there isn't. */ |
| |
| const bfd_target *bfd_default_vector[] = { |
| #ifdef DEFAULT_VECTOR |
| &DEFAULT_VECTOR, |
| #endif |
| NULL |
| }; |
| |
| /* When there is an ambiguous match, bfd_check_format_matches puts the |
| names of the matching targets in an array. This variable is the maximum |
| number of entries that the array could possibly need. */ |
| const size_t _bfd_target_vector_entries = sizeof(bfd_target_vector)/sizeof(*bfd_target_vector); |
| |
| /* This array maps configuration triplets onto BFD vectors. */ |
| |
| struct targmatch |
| { |
| /* The configuration triplet. */ |
| const char *triplet; |
| /* The BFD vector. If this is NULL, then the vector is found by |
| searching forward for the next structure with a non NULL vector |
| field. */ |
| const bfd_target *vector; |
| }; |
| |
| /* targmatch.h is built by Makefile out of config.bfd. */ |
| static const struct targmatch bfd_target_match[] = { |
| #include "targmatch.h" |
| { NULL, NULL } |
| }; |
| |
| static const bfd_target *find_target PARAMS ((const char *)); |
| |
| /* Find a target vector, given a name or configuration triplet. */ |
| |
| static const bfd_target * |
| find_target (name) |
| const char *name; |
| { |
| const bfd_target * const *target; |
| const struct targmatch *match; |
| |
| for (target = &bfd_target_vector[0]; *target != NULL; target++) |
| if (strcmp (name, (*target)->name) == 0) |
| return *target; |
| |
| /* If we couldn't match on the exact name, try matching on the |
| configuration triplet. FIXME: We should run the triplet through |
| config.sub first, but that is hard. */ |
| for (match = &bfd_target_match[0]; match->triplet != NULL; match++) |
| { |
| if (fnmatch (match->triplet, name, 0) == 0) |
| { |
| while (match->vector == NULL) |
| ++match; |
| return match->vector; |
| break; |
| } |
| } |
| |
| bfd_set_error (bfd_error_invalid_target); |
| return NULL; |
| } |
| |
| /* |
| FUNCTION |
| bfd_set_default_target |
| |
| SYNOPSIS |
| boolean bfd_set_default_target (const char *name); |
| |
| DESCRIPTION |
| Set the default target vector to use when recognizing a BFD. |
| This takes the name of the target, which may be a BFD target |
| name or a configuration triplet. |
| */ |
| |
| boolean |
| bfd_set_default_target (name) |
| const char *name; |
| { |
| const bfd_target *target; |
| |
| if (bfd_default_vector[0] != NULL |
| && strcmp (name, bfd_default_vector[0]->name) == 0) |
| return true; |
| |
| target = find_target (name); |
| if (target == NULL) |
| return false; |
| |
| bfd_default_vector[0] = target; |
| return true; |
| } |
| |
| /* |
| FUNCTION |
| bfd_find_target |
| |
| SYNOPSIS |
| const bfd_target *bfd_find_target(CONST char *target_name, bfd *abfd); |
| |
| DESCRIPTION |
| Return a pointer to the transfer vector for the object target |
| named @var{target_name}. If @var{target_name} is <<NULL>>, choose the |
| one in the environment variable <<GNUTARGET>>; if that is null or not |
| defined, then choose the first entry in the target list. |
| Passing in the string "default" or setting the environment |
| variable to "default" will cause the first entry in the target |
| list to be returned, and "target_defaulted" will be set in the |
| BFD. This causes <<bfd_check_format>> to loop over all the |
| targets to find the one that matches the file being read. |
| */ |
| |
| const bfd_target * |
| bfd_find_target (target_name, abfd) |
| const char *target_name; |
| bfd *abfd; |
| { |
| const char *targname; |
| const bfd_target *target; |
| |
| if (target_name != NULL) |
| targname = target_name; |
| else |
| targname = getenv ("GNUTARGET"); |
| |
| /* This is safe; the vector cannot be null */ |
| if (targname == NULL || strcmp (targname, "default") == 0) |
| { |
| abfd->target_defaulted = true; |
| if (bfd_default_vector[0] != NULL) |
| abfd->xvec = bfd_default_vector[0]; |
| else |
| abfd->xvec = bfd_target_vector[0]; |
| return abfd->xvec; |
| } |
| |
| abfd->target_defaulted = false; |
| |
| target = find_target (targname); |
| if (target == NULL) |
| return NULL; |
| |
| abfd->xvec = target; |
| return target; |
| } |
| |
| /* |
| FUNCTION |
| bfd_target_list |
| |
| SYNOPSIS |
| const char **bfd_target_list(void); |
| |
| DESCRIPTION |
| Return a freshly malloced NULL-terminated |
| vector of the names of all the valid BFD targets. Do not |
| modify the names. |
| |
| */ |
| |
| const char ** |
| bfd_target_list () |
| { |
| int vec_length= 0; |
| #if defined (HOST_HPPAHPUX) && ! defined (__STDC__) |
| /* The native compiler on the HP9000/700 has a bug which causes it |
| to loop endlessly when compiling this file. This avoids it. */ |
| volatile |
| #endif |
| const bfd_target * const *target; |
| CONST char **name_list, **name_ptr; |
| |
| for (target = &bfd_target_vector[0]; *target != NULL; target++) |
| vec_length++; |
| |
| name_ptr = name_list = (CONST char **) |
| bfd_zmalloc ((vec_length + 1) * sizeof (char **)); |
| |
| if (name_list == NULL) |
| return NULL; |
| |
| for (target = &bfd_target_vector[0]; *target != NULL; target++) |
| *(name_ptr++) = (*target)->name; |
| |
| return name_list; |
| } |