diff options
Diffstat (limited to 'bfd/libnlm.h')
| -rw-r--r-- | bfd/libnlm.h | 81 |
1 files changed, 76 insertions, 5 deletions
diff --git a/bfd/libnlm.h b/bfd/libnlm.h index 53199bc..22d779d 100644 --- a/bfd/libnlm.h +++ b/bfd/libnlm.h @@ -117,14 +117,41 @@ struct nlm_obj_tdata #define nlm_relocation_fixups(bfd) (nlm_tdata(bfd) -> nlm_reloc_fixups) #define nlm_relocation_fixup_secs(bfd) (nlm_tdata(bfd)->nlm_reloc_fixup_secs) +/* 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. */ + long mach; + /* 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_read will pick up the fixed header. */ + 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. */ + 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 @@ -134,25 +161,69 @@ struct nlm_backend_data 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 *)); /* 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)); + /* 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. */ + boolean (*nlm_read_import) PARAMS ((bfd *, nlmNAME(symbol_type) *)); + /* Write an import record to abfd. */ + 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. */ + 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. */ + boolean (*nlm_write_external) PARAMS ((bfd *, bfd_size_type, + asymbol *, + struct reloc_and_sec *)); }; #define nlm_backend(bfd) \ ((struct nlm_backend_data *)((bfd) -> xvec -> backend_data)) +#define nlm_signature(bfd) \ + (nlm_backend(bfd) ? nlm_backend(bfd) -> signature : "") +#define nlm_fixed_header_size(bfd) \ + (nlm_backend(bfd) ? nlm_backend(bfd) -> fixed_header_size : 0) +#define nlm_optional_prefix_size(bfd) \ + (nlm_backend(bfd) ? nlm_backend(bfd) -> optional_prefix_size : 0) #define nlm_architecture(bfd) \ (nlm_backend(bfd) ? nlm_backend(bfd) -> arch : bfd_arch_unknown) +#define nlm_machine(bfd) \ + (nlm_backend(bfd) ? nlm_backend(bfd) -> mach : 0) +#define nlm_backend_object_p_func(bfd) \ + (nlm_backend(bfd) ? nlm_backend(bfd) -> nlm_backend_object_p : 0) +#define nlm_write_prefix_func(bfd) \ + (nlm_backend(bfd) ? nlm_backend(bfd) -> nlm_write_prefix : 0) #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) #define nlm_mangle_relocs_func(bfd) \ (nlm_backend(bfd) ? nlm_backend(bfd) -> nlm_mangle_relocs : 0) +#define nlm_read_import_func(bfd) \ + (nlm_backend(bfd) ? nlm_backend(bfd) -> nlm_read_import : 0) +#define nlm_write_import_func(bfd) \ + (nlm_backend(bfd) ? nlm_backend(bfd) -> nlm_write_import : 0) +#define nlm_set_public_section_func(bfd) \ + (nlm_backend(bfd) ? nlm_backend(bfd) -> nlm_set_public_section : 0) +#define nlm_get_public_offset_func(bfd) \ + (nlm_backend(bfd) ? nlm_backend(bfd) -> nlm_get_public_offset : 0) +#define nlm_swap_fixed_header_in_func(bfd) \ + (nlm_backend(bfd) ? nlm_backend(bfd) -> nlm_swap_fhdr_in : 0) +#define nlm_swap_fixed_header_out_func(bfd) \ + (nlm_backend(bfd) ? nlm_backend(bfd) -> nlm_swap_fhdr_out : 0) +#define nlm_write_external_func(bfd) \ + (nlm_backend(bfd) ? nlm_backend(bfd) -> nlm_write_external : 0) /* 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 |