/* BFD back-end data structures for NLM (NetWare Loadable Modules) files.
- Copyright (C) 1993 Free Software Foundation, Inc.
+ Copyright (C) 1993-2014 Free Software Foundation, Inc.
Written by Cygnus Support.
-This file is part of BFD, the Binary File Descriptor library.
+ 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 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 3 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.
+ 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., 675 Mass Ave, Cambridge, MA 02139, USA. */
+ 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., 51 Franklin Street - Fifth Floor, Boston,
+ MA 02110-1301, USA. */
#ifndef _LIBNLM_H_
#define _LIBNLM_H_ 1
+#ifdef ARCH_SIZE
+# define NLM_ARCH_SIZE ARCH_SIZE
+#endif
#include "nlm/common.h"
#include "nlm/internal.h"
#include "nlm/external.h"
-/* If size isn't specified as 64 or 32, NAME macro should fail. */
-#ifndef NAME
-# if ARCH_SIZE==64
-# define NAME(x,y) CAT4(x,64,_,y)
-# endif
-# if ARCH_SIZE==32
-# define NAME(x,y) CAT4(x,32,_,y)
-# endif
-#endif
-
-#define NlmNAME(X) NAME(Nlm,X)
-#define nlmNAME(X) NAME(nlm,X)
+/* A reloc for an imported NLM symbol. Normal relocs are associated
+ with sections, and include a symbol. These relocs are associated
+ with (undefined) symbols, and include a section. */
-typedef struct
+struct nlm_relent
{
- asymbol symbol;
-} nlm32_symbol_type;
+ /* Section of reloc. */
+ asection *section;
+ /* Reloc info (sym_ptr_ptr field set only when canonicalized). */
+ arelent reloc;
+};
+
+/* Information we keep for an NLM symbol. */
typedef struct
{
+ /* BFD symbol. */
asymbol symbol;
-} nlm64_symbol_type;
-
-#define bfd_nlm32_mkobject bfd_nlm_mkobject
-#define bfd_nlm64_mkobject bfd_nlm_mkobject
-#define nlm_mkobject bfd_nlm_mkobject
-extern boolean bfd_nlm_mkobject PARAMS ((bfd *));
-
-extern void bfd_nlm32_get_symbol_info
- PARAMS ((bfd *, asymbol *, symbol_info *));
-extern unsigned int bfd_nlm32_get_symtab_upper_bound PARAMS ((bfd *));
-extern unsigned int bfd_nlm64_get_symtab_upper_bound PARAMS ((bfd *));
-extern unsigned int bfd_nlm32_get_symtab PARAMS ((bfd *, asymbol **));
-extern unsigned int bfd_nlm64_get_symtab PARAMS ((bfd *, asymbol **));
-extern asymbol *bfd_nlm32_make_empty_symbol PARAMS ((bfd *));
-extern asymbol *bfd_nlm64_make_empty_symbol PARAMS ((bfd *));
-extern bfd_target *bfd_nlm32_object_p PARAMS ((bfd *));
-extern bfd_target *bfd_nlm64_object_p PARAMS ((bfd *));
-extern boolean bfd_nlm32_set_arch_mach
- PARAMS ((bfd *, enum bfd_architecture, unsigned long));
-extern boolean bfd_nlm64_set_arch_mach
- PARAMS ((bfd *, enum bfd_architecture, unsigned long));
+ /* Number of reloc entries for imported symbol. */
+ bfd_size_type rcnt;
+ /* Array of reloc information for imported symbol. */
+ struct nlm_relent *relocs;
+} nlmNAME(symbol_type);
+
+extern bfd_boolean nlm_mkobject (bfd *);
+extern bfd_boolean nlm_set_arch_mach (bfd *, enum bfd_architecture, unsigned long);
+extern void nlmNAME (get_symbol_info) (bfd *, asymbol *, symbol_info *);
+extern long nlmNAME (get_symtab_upper_bound)(bfd *);
+extern long nlmNAME (canonicalize_symtab) (bfd *, asymbol **);
+extern asymbol * nlmNAME (make_empty_symbol) (bfd *);
+extern void nlmNAME (print_symbol) (bfd *, void *, asymbol *, bfd_print_symbol_type);
+extern long nlmNAME (get_reloc_upper_bound) (bfd *, asection *);
+extern long nlmNAME (canonicalize_reloc) (bfd *, asection *, arelent **, asymbol **);
+extern const bfd_target * nlmNAME (object_p) (bfd *);
+extern bfd_boolean nlmNAME (set_arch_mach) (bfd *, enum bfd_architecture, unsigned long);
+extern bfd_boolean nlmNAME (set_section_contents) (bfd *, asection *, const void *, file_ptr, bfd_size_type);
+extern bfd_boolean nlmNAME (write_object_contents) (bfd *);
/* Some private data is stashed away for future use using the tdata pointer
in the bfd structure. */
struct nlm_obj_tdata
{
/* Actual data, but ref like ptr */
- Nlm_Internal_Fixed_Header nlm_fixed_header[1];
- Nlm_Internal_Variable_Header nlm_variable_header[1];
- Nlm_Internal_Version_Header nlm_version_header[1];
- Nlm_Internal_Copyright_Header nlm_copyright_header[1];
- Nlm_Internal_Extended_Header nlm_extended_header[1];
- Nlm_Internal_Custom_Header nlm_custom_header[1];
+ Nlm_Internal_Fixed_Header nlm_fixed_hdr[1];
+ Nlm_Internal_Variable_Header nlm_variable_hdr[1];
+ Nlm_Internal_Version_Header nlm_version_hdr[1];
+ 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. */
+ bfd_vma nlm_text_low;
+ bfd_vma nlm_data_low;
+ /* 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_fixed_header(bfd) (nlm_tdata(bfd) -> nlm_fixed_header)
-#define nlm_variable_header(bfd) (nlm_tdata(bfd) -> nlm_variable_header)
-#define nlm_version_header(bfd) (nlm_tdata(bfd) -> nlm_version_header)
-#define nlm_copyright_header(bfd) (nlm_tdata(bfd) -> nlm_copyright_header)
-#define nlm_extended_header(bfd) (nlm_tdata(bfd) -> nlm_extended_header)
-#define nlm_custom_header(bfd) (nlm_tdata(bfd) -> nlm_custom_header)
+#define nlm_fixed_header(bfd) (nlm_tdata (bfd) -> nlm_fixed_hdr)
+#define nlm_variable_header(bfd) (nlm_tdata (bfd) -> nlm_variable_hdr)
+#define nlm_version_header(bfd) (nlm_tdata (bfd) -> nlm_version_hdr)
+#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_get_text_low(bfd) (nlm_tdata (bfd) -> nlm_text_low)
+#define nlm_set_data_low(bfd, i) (nlm_tdata (bfd) -> nlm_data_low = (i))
+#define nlm_get_data_low(bfd) (nlm_tdata (bfd) -> nlm_data_low)
+#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
+{
+ /* 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) (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) (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
+ should set the third argument to the section which the reloc
+ 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. */
+ bfd_boolean (*nlm_read_reloc) (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. */
+ bfd_boolean (*nlm_mangle_relocs) (bfd *, asection *, const void *, bfd_vma, bfd_size_type);
+ /* 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) (bfd *, nlmNAME (symbol_type) *);
+ /* Write an import record to abfd. */
+ bfd_boolean (*nlm_write_import) (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) (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) (bfd *, asymbol *);
+ /* Swap the fixed header in and out */
+ void (*nlm_swap_fhdr_in) (bfd *, void *, Nlm_Internal_Fixed_Header *);
+ void (*nlm_swap_fhdr_out) (bfd *, struct nlm_internal_fixed_header *, void *);
+ /* Write out an external reference. */
+ bfd_boolean (*nlm_write_external) (bfd *, bfd_size_type, asymbol *, struct reloc_and_sec *);
+ bfd_boolean (*nlm_write_export) (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) -> 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_read_reloc)
+#define nlm_mangle_relocs_func(bfd) (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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