/* BFD back-end data structures for NLM (NetWare Loadable Modules) files.
- Copyright (C) 1993 Free Software Foundation, Inc.
+ Copyright 1993, 1994, 2001, 2002 Free Software Foundation, Inc.
Written by Cygnus Support.
This file is part of BFD, the Binary File Descriptor library.
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., 675 Mass Ave, Cambridge, MA 02139, USA. */
+Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
#ifndef _LIBNLM_H_
#define _LIBNLM_H_ 1
struct nlm_relent *relocs;
} nlmNAME(symbol_type);
-extern boolean nlm_mkobject PARAMS ((bfd *));
-extern boolean nlm_set_arch_mach PARAMS ((bfd *, enum bfd_architecture,
- unsigned long));
+extern bfd_boolean nlm_mkobject
+ PARAMS ((bfd *));
+extern bfd_boolean nlm_set_arch_mach
+ PARAMS ((bfd *, enum bfd_architecture, unsigned long));
extern void nlmNAME(get_symbol_info)
- PARAMS ((bfd *, asymbol *, symbol_info *));
-extern unsigned int nlmNAME(get_symtab_upper_bound)
- PARAMS ((bfd *));
-extern unsigned int nlmNAME(get_symtab)
- PARAMS ((bfd *, asymbol **));
+ PARAMS ((bfd *, asymbol *, symbol_info *));
+extern long nlmNAME(get_symtab_upper_bound)
+ PARAMS ((bfd *));
+extern long nlmNAME(get_symtab)
+ PARAMS ((bfd *, asymbol **));
extern asymbol *nlmNAME(make_empty_symbol)
- PARAMS ((bfd *));
+ PARAMS ((bfd *));
extern void nlmNAME(print_symbol)
- PARAMS ((bfd *, PTR, asymbol *, bfd_print_symbol_type));
-extern unsigned int nlmNAME(get_reloc_upper_bound)
- PARAMS ((bfd *, asection *));
-extern unsigned int nlmNAME(canonicalize_reloc)
- PARAMS ((bfd *, asection *, arelent **, asymbol **));
-extern bfd_target *nlmNAME(object_p)
- PARAMS ((bfd *));
-extern boolean nlmNAME(set_arch_mach)
- PARAMS ((bfd *, enum bfd_architecture, unsigned long));
-extern boolean nlmNAME(set_section_contents)
- PARAMS ((bfd *, asection *, PTR, file_ptr, bfd_size_type));
-extern boolean nlmNAME(write_object_contents)
- PARAMS ((bfd *));
+ PARAMS ((bfd *, PTR, asymbol *, bfd_print_symbol_type));
+extern long nlmNAME(get_reloc_upper_bound)
+ PARAMS ((bfd *, asection *));
+extern long nlmNAME(canonicalize_reloc)
+ PARAMS ((bfd *, asection *, arelent **, asymbol **));
+extern const bfd_target *nlmNAME(object_p)
+ PARAMS ((bfd *));
+extern bfd_boolean nlmNAME(set_arch_mach)
+ PARAMS ((bfd *, enum bfd_architecture, unsigned long));
+extern bfd_boolean nlmNAME(set_section_contents)
+ PARAMS ((bfd *, asection *, PTR, file_ptr, bfd_size_type));
+extern bfd_boolean nlmNAME(write_object_contents)
+ PARAMS ((bfd *));
/* Some private data is stashed away for future use using the tdata pointer
in the bfd structure. */
Nlm_Internal_Copyright_Header nlm_copyright_hdr[1];
Nlm_Internal_Extended_Header nlm_extended_hdr[1];
Nlm_Internal_Custom_Header nlm_custom_hdr[1];
+ Nlm_Internal_Cygnus_Ext_Header nlm_cygnus_ext_hdr[1];
/* BFD NLM symbols. */
nlmNAME(symbol_type) *nlm_symbols;
/* Lowest text and data VMA values. */
/* Caches for data read from object file. */
arelent * nlm_reloc_fixups;
asection ** nlm_reloc_fixup_secs;
+ /* Backend specific information. This should probably be a pointer,
+ but that would require yet another entry point to initialize the
+ structure. */
+ union
+ {
+ struct /* Alpha backend information. */
+ {
+ bfd_vma gp; /* GP value. */
+ bfd_vma lita_address; /* .lita section address. */
+ bfd_size_type lita_size; /* .lita section size. */
+ }
+ alpha_backend_data;
+ }
+ backend_data;
};
#define nlm_tdata(bfd) ((bfd) -> tdata.nlm_obj_data)
#define nlm_copyright_header(bfd) (nlm_tdata(bfd) -> nlm_copyright_hdr)
#define nlm_extended_header(bfd) (nlm_tdata(bfd) -> nlm_extended_hdr)
#define nlm_custom_header(bfd) (nlm_tdata(bfd) -> nlm_custom_hdr)
+#define nlm_cygnus_ext_header(bfd) (nlm_tdata(bfd) -> nlm_cygnus_ext_hdr)
#define nlm_get_symbols(bfd) (nlm_tdata(bfd) -> nlm_symbols)
#define nlm_set_symbols(bfd, p) (nlm_tdata(bfd) -> nlm_symbols = (p))
#define nlm_set_text_low(bfd, i) (nlm_tdata(bfd) -> nlm_text_low = (i))
#define nlm_relocation_fixups(bfd) (nlm_tdata(bfd) -> nlm_reloc_fixups)
#define nlm_relocation_fixup_secs(bfd) (nlm_tdata(bfd)->nlm_reloc_fixup_secs)
+#define nlm_alpha_backend_data(bfd) \
+ (&nlm_tdata (bfd)->backend_data.alpha_backend_data)
+
+/* This is used when writing out the external relocs. */
+
+struct reloc_and_sec
+{
+ arelent *rel;
+ asection *sec;
+};
+
/* We store some function pointer in the backend structure. This lets
different NLM targets share most of the same code, while providing
slightly different code where necessary. */
struct nlm_backend_data
{
- /* Machine architecture. */
+ /* Signature for this backend. */
+ char signature[NLM_SIGNATURE_SIZE];
+ /* Size of the fixed header. */
+ bfd_size_type fixed_header_size;
+ /* Size of optional prefix for this backend. Some backend may
+ require this to be a function, but so far a constant is OK. This
+ is for a prefix which precedes the standard NLM fixed header. */
+ bfd_size_type optional_prefix_size;
+ /* Architecture. */
enum bfd_architecture arch;
+ /* Machine. */
+ unsigned int mach;
+ /* Some NLM formats do not use the uninitialized data section, so
+ all uninitialized data must be put into the regular data section
+ instead. */
+ bfd_boolean no_uninitialized_data;
+ /* Some NLM formats have a prefix on the file. If this function is
+ not NULL, it will be called by nlm_object_p. It should return
+ TRUE if this file could match this format, and it should leave
+ the BFD such that a bfd_bread will pick up the fixed header. */
+ bfd_boolean (*nlm_backend_object_p) PARAMS ((bfd *));
+ /* Write out the prefix. This function may be NULL. This must
+ write out the same number of bytes as is in the field
+ optional_prefix_size. */
+ bfd_boolean (*nlm_write_prefix) PARAMS ((bfd *));
/* Read a relocation fixup from abfd. The reloc information is
machine specific. The second argument is the symbol if this is
an import, or NULL if this is a reloc fixup. This function
belongs in, and the fourth argument to the reloc itself; it does
not need to fill in the sym_ptr_ptr field for a reloc against an
import symbol. */
- boolean (*nlm_read_reloc) PARAMS ((bfd *, nlmNAME(symbol_type) *,
- asection **, arelent *));
- /* Write a relocation fixup to abfd. */
- boolean (*nlm_write_reloc) PARAMS ((bfd *, asection *, arelent *));
+ bfd_boolean (*nlm_read_reloc)
+ PARAMS ((bfd *, nlmNAME(symbol_type) *, asection **, arelent *));
/* To make objcopy to an i386 NLM work, the i386 backend needs a
chance to work over the relocs. This is a bit icky. */
- boolean (*nlm_mangle_relocs) PARAMS ((bfd *, asection *, PTR data,
- bfd_vma offset,
- bfd_size_type count));
+ bfd_boolean (*nlm_mangle_relocs)
+ PARAMS ((bfd *, asection *, PTR data, bfd_vma offset, bfd_size_type count));
+ /* Read an import record from abfd. It would be nice if this
+ were in a machine-dependent format, but it doesn't seem to be. */
+ bfd_boolean (*nlm_read_import) PARAMS ((bfd *, nlmNAME(symbol_type) *));
+ /* Write an import record to abfd. */
+ bfd_boolean (*nlm_write_import) PARAMS ((bfd *, asection *, arelent *));
+ /* Set the section for a public symbol. This may be NULL, in which
+ case a default method will be used. */
+ bfd_boolean (*nlm_set_public_section)
+ PARAMS ((bfd *, nlmNAME(symbol_type) *));
+ /* Get the offset to write out for a public symbol. This may be
+ NULL, in which case a default method will be used. */
+ bfd_vma (*nlm_get_public_offset) PARAMS ((bfd *, asymbol *));
+ /* Swap the fixed header in and out */
+ void (*nlm_swap_fhdr_in)
+ PARAMS ((bfd *, PTR, Nlm_Internal_Fixed_Header *));
+ void (*nlm_swap_fhdr_out)
+ PARAMS ((bfd *, struct nlm_internal_fixed_header *, PTR));
+ /* Write out an external reference. */
+ bfd_boolean (*nlm_write_external)
+ PARAMS ((bfd *, bfd_size_type, asymbol *, struct reloc_and_sec *));
+ bfd_boolean (*nlm_write_export) PARAMS ((bfd *, asymbol *, bfd_vma));
};
#define nlm_backend(bfd) \
((struct nlm_backend_data *)((bfd) -> xvec -> backend_data))
+#define nlm_signature(bfd) \
+ (nlm_backend(bfd) -> signature)
+#define nlm_fixed_header_size(bfd) \
+ (nlm_backend(bfd) -> fixed_header_size)
+#define nlm_optional_prefix_size(bfd) \
+ (nlm_backend(bfd) -> optional_prefix_size)
#define nlm_architecture(bfd) \
- (nlm_backend(bfd) ? nlm_backend(bfd) -> arch : bfd_arch_unknown)
+ (nlm_backend(bfd) -> arch)
+#define nlm_machine(bfd) \
+ (nlm_backend(bfd) -> mach)
+#define nlm_no_uninitialized_data(bfd) \
+ (nlm_backend(bfd) -> no_uninitialized_data)
+#define nlm_backend_object_p_func(bfd) \
+ (nlm_backend(bfd) -> nlm_backend_object_p)
+#define nlm_write_prefix_func(bfd) \
+ (nlm_backend(bfd) -> nlm_write_prefix)
#define nlm_read_reloc_func(bfd) \
- (nlm_backend(bfd) ? nlm_backend(bfd) -> nlm_read_reloc : 0)
-#define nlm_write_reloc_func(bfd) \
- (nlm_backend(bfd) ? nlm_backend(bfd) -> nlm_write_reloc : 0)
+ (nlm_backend(bfd) -> nlm_read_reloc)
#define nlm_mangle_relocs_func(bfd) \
- (nlm_backend(bfd) ? nlm_backend(bfd) -> nlm_mangle_relocs : 0)
+ (nlm_backend(bfd) -> nlm_mangle_relocs)
+#define nlm_read_import_func(bfd) \
+ (nlm_backend(bfd) -> nlm_read_import)
+#define nlm_write_import_func(bfd) \
+ (nlm_backend(bfd) -> nlm_write_import)
+#define nlm_set_public_section_func(bfd) \
+ (nlm_backend(bfd) -> nlm_set_public_section)
+#define nlm_get_public_offset_func(bfd) \
+ (nlm_backend(bfd) -> nlm_get_public_offset)
+#define nlm_swap_fixed_header_in_func(bfd) \
+ (nlm_backend(bfd) -> nlm_swap_fhdr_in)
+#define nlm_swap_fixed_header_out_func(bfd) \
+ (nlm_backend(bfd) -> nlm_swap_fhdr_out)
+#define nlm_write_external_func(bfd) \
+ (nlm_backend(bfd) -> nlm_write_external)
+#define nlm_write_export_func(bfd) \
+ (nlm_backend(bfd) -> nlm_write_export)
/* The NLM code, data, and uninitialized sections have no names defined
in the NLM, but bfd wants to give them names, so use the traditional
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