/* Generic target-file-type support for the BFD library.
- Copyright 1990, 1991, 1992 Free Software Foundation, Inc.
+ Copyright 1990, 1991, 1992, 1993 Free Software Foundation, Inc.
Written by Cygnus Support.
This file is part of BFD, the Binary File Descriptor library.
Every BFD points to a target structure with its <<xvec>>
member.
- Shortcut for declaring fields which are prototyped function
- pointers, while avoiding anguish on compilers that don't
- support protos.
-
-.#define SDEF(ret, name, arglist) \
-. PROTO(ret,(*name),arglist)
-.#define SDEF_FMT(ret, name, arglist) \
-. PROTO(ret,(*name[bfd_type_end]),arglist)
-
These macros 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
. 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_hppa_flavour} flavour;
+. bfd_target_som_flavour} flavour;
The order of bytes within the data area of a file.
The maximum number of characters in an archive header.
-. unsigned short ar_max_namelen;
+. unsigned short ar_max_namelen;
The minimum alignment restriction for any section.
entry points, since they don't take BFD as first arg. Certain other handlers
could do the same.
-. SDEF (bfd_vma, bfd_getx64, (bfd_byte *));
-. SDEF (void, bfd_putx64, (bfd_vma, bfd_byte *));
-. SDEF (bfd_vma, bfd_getx32, (bfd_byte *));
-. SDEF (void, bfd_putx32, (bfd_vma, bfd_byte *));
-. SDEF (bfd_vma, bfd_getx16, (bfd_byte *));
-. SDEF (void, bfd_putx16, (bfd_vma, bfd_byte *));
+. bfd_vma (*bfd_getx64) PARAMS ((bfd_byte *));
+. bfd_signed_vma (*bfd_getx_signed_64) PARAMS ((bfd_byte *));
+. void (*bfd_putx64) PARAMS ((bfd_vma, bfd_byte *));
+. bfd_vma (*bfd_getx32) PARAMS ((bfd_byte *));
+. bfd_signed_vma (*bfd_getx_signed_32) PARAMS ((bfd_byte *));
+. void (*bfd_putx32) PARAMS ((bfd_vma, bfd_byte *));
+. bfd_vma (*bfd_getx16) PARAMS ((bfd_byte *));
+. bfd_signed_vma (*bfd_getx_signed_16) PARAMS ((bfd_byte *));
+. void (*bfd_putx16) PARAMS ((bfd_vma, bfd_byte *));
Byte swapping for the headers
-. SDEF (bfd_vma, bfd_h_getx64, (bfd_byte *));
-. SDEF (void, bfd_h_putx64, (bfd_vma, bfd_byte *));
-. SDEF (bfd_vma, bfd_h_getx32, (bfd_byte *));
-. SDEF (void, bfd_h_putx32, (bfd_vma, bfd_byte *));
-. SDEF (bfd_vma, bfd_h_getx16, (bfd_byte *));
-. SDEF (void, bfd_h_putx16, (bfd_vma, bfd_byte *));
+. bfd_vma (*bfd_h_getx64) PARAMS ((bfd_byte *));
+. bfd_signed_vma (*bfd_h_getx_signed_64) PARAMS ((bfd_byte *));
+. void (*bfd_h_putx64) PARAMS ((bfd_vma, bfd_byte *));
+. bfd_vma (*bfd_h_getx32) PARAMS ((bfd_byte *));
+. bfd_signed_vma (*bfd_h_getx_signed_32) PARAMS ((bfd_byte *));
+. void (*bfd_h_putx32) PARAMS ((bfd_vma, bfd_byte *));
+. bfd_vma (*bfd_h_getx16) PARAMS ((bfd_byte *));
+. bfd_signed_vma (*bfd_h_getx_signed_16) PARAMS ((bfd_byte *));
+. void (*bfd_h_putx16) PARAMS ((bfd_vma, bfd_byte *));
-Format dependent routines, these turn into vectors of entry points
-within the target vector structure; one for each format to check.
+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 bfd_target * or zero.
-. SDEF_FMT (struct bfd_target *, _bfd_check_format, (bfd *));
+. struct bfd_target * (*_bfd_check_format[bfd_type_end]) PARAMS ((bfd *));
Set the format of a file being written.
-. SDEF_FMT (boolean, _bfd_set_format, (bfd *));
+. boolean (*_bfd_set_format[bfd_type_end]) PARAMS ((bfd *));
Write cached information into a file being written, at bfd_close.
-. SDEF_FMT (boolean, _bfd_write_contents, (bfd *));
+. boolean (*_bfd_write_contents[bfd_type_end]) PARAMS ((bfd *));
The following functions are defined in <<JUMP_TABLE>>. The idea is
that the back end writer of <<foo>> names all the routines
Core file entry points
-. SDEF (char *, _core_file_failing_command, (bfd *));
-. SDEF (int, _core_file_failing_signal, (bfd *));
-. SDEF (boolean, _core_file_matches_executable_p, (bfd *, bfd *));
+. 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
-. SDEF (boolean, _bfd_slurp_armap, (bfd *));
-. SDEF (boolean, _bfd_slurp_extended_name_table, (bfd *));
-. SDEF (void, _bfd_truncate_arname, (bfd *, CONST char *, char *));
-. SDEF (boolean, write_armap, (bfd *arch,
+. boolean (*_bfd_slurp_armap) PARAMS ((bfd *));
+. boolean (*_bfd_slurp_extended_name_table) PARAMS ((bfd *));
+. 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,
Standard stuff.
-. SDEF (boolean, _close_and_cleanup, (bfd *));
-. SDEF (boolean, _bfd_set_section_contents, (bfd *, sec_ptr, PTR,
+. boolean (*_close_and_cleanup) PARAMS ((bfd *));
+. boolean (*_bfd_set_section_contents) PARAMS ((bfd *, sec_ptr, PTR,
. file_ptr, bfd_size_type));
-. SDEF (boolean, _bfd_get_section_contents, (bfd *, sec_ptr, PTR,
+. boolean (*_bfd_get_section_contents) PARAMS ((bfd *, sec_ptr, PTR,
. file_ptr, bfd_size_type));
-. SDEF (boolean, _new_section_hook, (bfd *, sec_ptr));
+. boolean (*_new_section_hook) PARAMS ((bfd *, sec_ptr));
Symbols and relocations
-. SDEF (unsigned int, _get_symtab_upper_bound, (bfd *));
-. SDEF (unsigned int, _bfd_canonicalize_symtab,
-. (bfd *, struct symbol_cache_entry **));
-. SDEF (unsigned int, _get_reloc_upper_bound, (bfd *, sec_ptr));
-. SDEF (unsigned int, _bfd_canonicalize_reloc, (bfd *, sec_ptr, arelent **,
-. struct symbol_cache_entry**));
-. SDEF (struct symbol_cache_entry *, _bfd_make_empty_symbol, (bfd *));
-. SDEF (void, _bfd_print_symbol, (bfd *, PTR, struct symbol_cache_entry *,
+. unsigned int (*_get_symtab_upper_bound) PARAMS ((bfd *));
+. unsigned int (*_bfd_canonicalize_symtab) PARAMS ((bfd *,
+. struct symbol_cache_entry **));
+. unsigned int (*_get_reloc_upper_bound) PARAMS ((bfd *, sec_ptr));
+. unsigned int (*_bfd_canonicalize_reloc) PARAMS ((bfd *, sec_ptr, arelent **,
+. 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))
-. SDEF (alent *, _get_lineno, (bfd *, struct symbol_cache_entry *));
-.
-. SDEF (boolean, _bfd_set_arch_mach, (bfd *, enum bfd_architecture,
-. unsigned long));
-.
-. SDEF (bfd *, openr_next_archived_file, (bfd *arch, bfd *prev));
-. SDEF (boolean, _bfd_find_nearest_line,
-. (bfd *abfd, struct sec *section,
-. struct symbol_cache_entry **symbols,bfd_vma offset,
-. CONST char **file, CONST char **func, unsigned int *line));
-. SDEF (int, _bfd_stat_arch_elt, (bfd *, struct stat *));
-.
-. SDEF (int, _bfd_sizeof_headers, (bfd *, boolean));
-.
-. SDEF (void, _bfd_debug_info_start, (bfd *));
-. SDEF (void, _bfd_debug_info_end, (bfd *));
-. SDEF (void, _bfd_debug_info_accumulate, (bfd *, struct sec *));
-. SDEF (bfd_byte *, _bfd_get_relocated_section_contents, (bfd*,struct bfd_seclet *, bfd_byte *data));
-. SDEF (boolean,_bfd_relax_section,(bfd *, struct sec *, struct symbol_cache_entry **));
-Special entry points for gdb to swap in coff symbol table parts
-
-. SDEF(void, _bfd_coff_swap_aux_in,(
-. bfd *abfd ,
-. PTR ext,
-. int type,
-. int class ,
-. PTR in));
-.
-. SDEF(void, _bfd_coff_swap_sym_in,(
-. bfd *abfd ,
-. PTR ext,
-. PTR in));
-.
-. SDEF(void, _bfd_coff_swap_lineno_in, (
-. bfd *abfd,
-. PTR ext,
-. PTR in));
-.
-
-Special entry points for gas to swap coff parts
+. 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))
-. SDEF(unsigned int, _bfd_coff_swap_aux_out,(
-. bfd *abfd,
-. PTR in,
-. int type,
-. int class,
-. PTR ext));
+. alent * (*_get_lineno) PARAMS ((bfd *, struct symbol_cache_entry *));
.
-. SDEF(unsigned int, _bfd_coff_swap_sym_out,(
-. bfd *abfd,
-. PTR in,
-. PTR ext));
+. boolean (*_bfd_set_arch_mach) PARAMS ((bfd *, enum bfd_architecture,
+. unsigned long));
.
-. SDEF(unsigned int, _bfd_coff_swap_lineno_out,(
-. bfd *abfd,
-. PTR in,
-. PTR ext));
+. bfd * (*openr_next_archived_file) PARAMS ((bfd *arch, bfd *prev));
+.
+. 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));
+.
+. int (*_bfd_stat_arch_elt) PARAMS ((bfd *, struct stat *));
.
-. SDEF(unsigned int, _bfd_coff_swap_reloc_out,(
-. bfd *abfd,
-. PTR src,
-. PTR dst));
+. int (*_bfd_sizeof_headers) PARAMS ((bfd *, boolean));
.
-. SDEF(unsigned int, _bfd_coff_swap_filehdr_out,(
-. bfd *abfd,
-. PTR in,
-. PTR out));
+. void (*_bfd_debug_info_start) PARAMS ((bfd *));
+. void (*_bfd_debug_info_end) PARAMS ((bfd *));
+. void (*_bfd_debug_info_accumulate) PARAMS ((bfd *, struct sec *));
.
-. SDEF(unsigned int, _bfd_coff_swap_aouthdr_out,(
-. bfd *abfd,
-. PTR in,
-. PTR out));
+. bfd_byte * (*_bfd_get_relocated_section_contents) PARAMS ((bfd *,
+. struct bfd_seclet *, bfd_byte *data,
+. boolean relocateable));
.
-. SDEF(unsigned int, _bfd_coff_swap_scnhdr_out,(
-. bfd *abfd,
-. PTR in,
-. PTR out));
+. boolean (*_bfd_relax_section) PARAMS ((bfd *, struct sec *,
+. struct symbol_cache_entry **));
.
+. boolean (*_bfd_seclet_link) PARAMS ((bfd *, PTR data,
+. boolean relocateable));
+
. {* See documentation on reloc types. *}
-. SDEF (CONST struct reloc_howto_struct *,
-. reloc_type_lookup,
-. (bfd *abfd, bfd_reloc_code_real_type code));
+. CONST struct reloc_howto_struct *
+. (*reloc_type_lookup) PARAMS ((bfd *abfd,
+. bfd_reloc_code_real_type code));
.
-. {* Complete and utter crock, currently used for the assembler
+. {* 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. *}
-. SDEF (asymbol *, _bfd_make_debug_symbol, (
+. asymbol * (*_bfd_make_debug_symbol) PARAMS ((
. bfd *abfd,
. void *ptr,
. unsigned long size));
-Data for use by back-end routines; e.g., for a.out, includes whether
-this particular target maps ZMAGIC files contiguously or with text and
-data separated. Could perhaps also be used to eliminate some of the
-above COFF-specific fields.
+Data for use by back-end routines, which isn't generic enough to belong
+in this structure.
. PTR backend_data;
.} bfd_target;
*/
-/* The default is to define a target_vector containing all the targets.
- By setting MINIMIZE=1 on the "make" command line, the user can change this
- to a vector containing just DEFAULT_VECTOR and any required
- traditional-core-file handler. (This is to save space in the executables.)
- The config files can also override the default large vector by giving an
- explicit SELECT_VECS macro. */
-
-#if MINIMIZE && defined(DEFAULT_VECTOR) && !defined(SELECT_VECS)
-#ifdef TRAD_CORE
-#define SELECT_VECS &DEFAULT_VECTOR,&trad_core_vec
-#else
-#define SELECT_VECS &DEFAULT_VECTOR
-#endif
-#endif
-
-/* All known xvecs. They are listed a second time below, since
+/* 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 bfd_target ecoff_little_vec;
-extern bfd_target ecoff_big_vec;
-extern bfd_target sunos_big_vec;
-extern bfd_target demo_64_vec;
-extern bfd_target srec_vec;
-extern bfd_target tekhex_vec;
+extern bfd_target a29kcoff_big_vec;
extern bfd_target a_out_adobe_vec;
-extern bfd_target b_out_vec_little_host;
+extern bfd_target aout_mips_big_vec;
+extern bfd_target aout_mips_little_vec;
+extern bfd_target apollocoff_vec;
extern bfd_target b_out_vec_big_host;
-extern bfd_target icoff_little_vec;
+extern bfd_target b_out_vec_little_host;
+extern bfd_target bfd_elf32_big_generic_vec;
+extern bfd_target bfd_elf32_bigmips_vec;
+extern bfd_target bfd_elf32_hppa_vec;
+extern bfd_target bfd_elf32_i386_vec;
+extern bfd_target bfd_elf32_i860_vec;
+extern bfd_target bfd_elf32_little_generic_vec;
+extern bfd_target bfd_elf32_littlemips_vec;
+extern bfd_target bfd_elf32_m68k_vec;
+extern bfd_target bfd_elf32_m88k_vec;
+extern bfd_target bfd_elf32_sparc_vec;
+extern bfd_target bfd_elf64_big_generic_vec;
+extern bfd_target bfd_elf64_little_generic_vec;
+/* start-sanitize-v9 */
+extern bfd_target bfd_elf64_sparc_vec;
+/* end-sanitize-v9 */
+extern bfd_target demo_64_vec;
+extern bfd_target ecoff_big_vec;
+extern bfd_target ecoff_little_vec;
+extern bfd_target ecoffalpha_little_vec;
+extern bfd_target h8300coff_vec;
+extern bfd_target h8500coff_vec;
+extern bfd_target host_aout_vec;
+extern bfd_target hp300bsd_vec;
+extern bfd_target hp300hpux_vec;
+extern bfd_target som_vec;
+extern bfd_target i386aout_vec;
+extern bfd_target i386bsd_vec;
+extern bfd_target netbsd386_vec;
+extern bfd_target i386coff_vec;
+extern bfd_target i386linux_vec;
+extern bfd_target i386lynx_aout_vec;
+extern bfd_target i386lynx_coff_vec;
extern bfd_target icoff_big_vec;
-extern bfd_target elf_little_vec;
-extern bfd_target elf_big_vec;
+extern bfd_target icoff_little_vec;
extern bfd_target ieee_vec;
-extern bfd_target oasys_vec;
-extern bfd_target m88kbcs_vec;
extern bfd_target m68kcoff_vec;
-extern bfd_target i386coff_vec;
-extern bfd_target i386aout_vec;
-extern bfd_target i386linux_vec;
-extern bfd_target a29kcoff_big_vec;
-extern bfd_target trad_core_vec;
+extern bfd_target m68kcoffun_vec;
+extern bfd_target m68klynx_aout_vec;
+extern bfd_target m68klynx_coff_vec;
+extern bfd_target m88kbcs_vec;
+extern bfd_target newsos3_vec;
+extern bfd_target nlm32_big_generic_vec;
+extern bfd_target nlm32_i386_vec;
+extern bfd_target nlm32_little_generic_vec;
+extern bfd_target nlm64_big_generic_vec;
+extern bfd_target nlm64_little_generic_vec;
+extern bfd_target oasys_vec;
extern bfd_target rs6000coff_vec;
-extern bfd_target h8300coff_vec;
-extern bfd_target z8kcoff_vec;
+extern bfd_target shcoff_vec;
+extern bfd_target sunos_big_vec;
+extern bfd_target tekhex_vec;
extern bfd_target we32kcoff_vec;
-#ifdef hp9000s800
-extern bfd_target hppa_vec;
-#endif
+extern bfd_target z8kcoff_vec;
-#ifdef DEFAULT_VECTOR
-extern bfd_target DEFAULT_VECTOR;
-#endif
+/* srec is always included. */
+extern bfd_target srec_vec;
+extern bfd_target symbolsrec_vec;
-#ifdef SELECT_VECS
+/* All of the xvecs for core files. */
+extern bfd_target aix386_core_vec;
+extern bfd_target hpux_core_vec;
+extern bfd_target osf_core_vec;
+extern bfd_target sco_core_vec;
+extern bfd_target trad_core_vec;
bfd_target *target_vector[] = {
- SELECT_VECS,
- 0
-};
-#else
+#ifdef SELECT_VECS
-bfd_target *target_vector[] = {
+ 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,
- &i386coff_vec,
- &i386aout_vec,
- &ecoff_little_vec,
+ /* This, and other vectors, may not be used in any *.mt configuration.
+ But that does not mean they are unnecessary. If configured
+ --with-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,
+ &bfd_elf32_bigmips_vec,
+ &bfd_elf32_hppa_vec,
+ &bfd_elf32_i386_vec,
+ &bfd_elf32_i860_vec,
+ &bfd_elf32_little_generic_vec,
+ &bfd_elf32_littlemips_vec,
+ &bfd_elf32_m68k_vec,
+ &bfd_elf32_m88k_vec,
+ &bfd_elf32_sparc_vec,
+#ifdef BFD64 /* No one seems to use this. */
+ &bfd_elf64_big_generic_vec,
+ &bfd_elf64_little_generic_vec,
+#endif
+/* start-sanitize-v9 */
+#if 0
+ &bfd_elf64_sparc_vec,
+#endif
+/* end-sanitize-v9 */
+#ifdef BFD64
+ &demo_64_vec, /* Only compiled if host has long-long support */
+#endif
&ecoff_big_vec,
+ &ecoff_little_vec,
+#if 0
+ &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)
+ &som_vec,
+#endif
+ &i386aout_vec,
+ &i386bsd_vec,
+ &netbsd386_vec,
+ &i386coff_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,
+ &icoff_big_vec,
+ &icoff_little_vec,
&ieee_vec,
+ &m68kcoff_vec,
+ &m68kcoffun_vec,
+ &m68klynx_aout_vec,
+ &m68klynx_coff_vec,
+ &m88kbcs_vec,
+ &newsos3_vec,
+ &nlm32_big_generic_vec,
+ &nlm32_i386_vec,
+ &nlm32_little_generic_vec,
+#ifdef BFD64
+ &nlm64_big_generic_vec,
+ &nlm64_little_generic_vec,
+#endif
#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...
Worse, since there is no magic number for archives, there
- can annoying target mis-matches. */
+ can be annoying target mis-matches. */
&oasys_vec,
#endif
+ &rs6000coff_vec,
+ &shcoff_vec,
&sunos_big_vec,
-#ifdef HOST_64_BIT
- &demo_64_vec, /* Only compiled if host has long-long support */
+#if 0
+ &tekhex_vec,
#endif
- &h8300coff_vec,
+ &we32kcoff_vec,
&z8kcoff_vec,
- &m88kbcs_vec,
+
+#endif /* not SELECT_VECS */
+
+/* Always support S-records, for convenience. */
&srec_vec,
-/* &tekhex_vec,*/
- &icoff_little_vec,
- &icoff_big_vec,
- &elf_little_vec,
- &elf_big_vec,
- &a_out_adobe_vec,
- &b_out_vec_little_host,
- &b_out_vec_big_host,
- &m68kcoff_vec,
- &a29kcoff_big_vec,
- &rs6000coff_vec,
-#ifdef hp9000s800
- &hppa_vec,
-#endif
- &we32kcoff_vec,
+ &symbolsrec_vec,
+/* Add any required traditional-core-file-handler. */
+
+#ifdef AIX386_CORE
+ &aix386_core_vec,
+#endif
+#ifdef HPUX_CORE
+ &hpux_core_vec,
+#endif
+#ifdef OSF_CORE
+ &osf_core_vec,
+#endif
#ifdef TRAD_CORE
&trad_core_vec,
#endif
- NULL, /* end of list marker */
-};
-#endif
+ NULL /* end of list marker */
+};
/* default_vector[0] contains either the address of the default vector,
if there is one, or zero if there isn't. */
#ifdef DEFAULT_VECTOR
&DEFAULT_VECTOR,
#endif
- 0,
+ NULL
};