Symbols

bfd_get_reloc_upper_bound

Synopsis

long bfd_get_reloc_upper_bound(bfd *abfd, asection *sect);

Description
Return the number of bytes required to store the relocation information associated with section sect attached to bfd abfd. If an error occurs, return -1.

bfd_canonicalize_reloc

Synopsis

long bfd_canonicalize_reloc
   (bfd *abfd,
    asection *sec,
    arelent **loc,
    asymbol	**syms);

Description
Call the back end associated with the open BFD abfd and translate the external form of the relocation information attached to sec into the internal canonical form. Place the table into memory at loc, which has been preallocated, usually by a call to bfd_get_reloc_upper_bound. Returns the number of relocs, or -1 on error. The syms table is also needed for horrible internal magic reasons.

bfd_set_reloc

Synopsis

void bfd_set_reloc
   (bfd *abfd, asection *sec, arelent **rel, unsigned int count)

Description
Set the relocation pointer and count within section sec to the values rel and count. The argument abfd is ignored.

bfd_set_file_flags

Synopsis

boolean bfd_set_file_flags(bfd *abfd, flagword flags);

Description
Set the flag word in the BFD abfd to the value flags. Possible errors are:

• bfd_error_wrong_format - The target bfd was not of object format.
• bfd_error_invalid_operation - The target bfd was open for reading.
• bfd_error_invalid_operation - The flag word contained a bit which was not applicable to the type of file. E.g., an attempt was made to set the D_PAGED bit on a BFD format which does not support demand paging.

bfd_set_start_address

Synopsis

boolean bfd_set_start_address(bfd *abfd, bfd_vma vma);

Description
Make vma the entry point of output BFD abfd.
Returns
Returns true on success, false otherwise.

bfd_get_mtime

Synopsis

long bfd_get_mtime(bfd *abfd);

Description
Return the file modification time (as read from the file system, or from the archive header for archive members).

bfd_get_size

Synopsis

long bfd_get_size(bfd *abfd);

Description
Return the file size (as read from file system) for the file associated with BFD abfd. The initial motivation for, and use of, this routine is not so we can get the exact size of the object the BFD applies to, since that might not be generally possible (archive members for example). It would be ideal if someone could eventually modify it so that such results were guaranteed. Instead, we want to ask questions like "is this NNN byte sized object I'm about to try read from file offset YYY reasonable?" As as example of where we might do this, some object formats use string tables for which the first sizeof(long) bytes of the table contain the size of the table itself, including the size bytes. If an application tries to read what it thinks is one of these string tables, without some way to validate the size, and for some reason the size is wrong (byte swapping error, wrong location for the string table, etc.), the only clue is likely to be a read error when it tries to read the table, or a "virtual memory exhausted" error when it tries to allocate 15 bazillon bytes of space for the 15 bazillon byte table it is about to read. This function at least allows us to answer the quesion, "is the size reasonable?".

bfd_get_gp_size

Synopsis

int bfd_get_gp_size(bfd *abfd);

Description
Return the maximum size of objects to be optimized using the GP register under MIPS ECOFF. This is typically set by the -G argument to the compiler, assembler or linker.

bfd_set_gp_size

Synopsis

void bfd_set_gp_size(bfd *abfd, int i);

Description
Set the maximum size of objects to be optimized using the GP register under ECOFF or MIPS ELF. This is typically set by the -G argument to the compiler, assembler or linker.

bfd_scan_vma

Synopsis

bfd_vma bfd_scan_vma(CONST char *string, CONST char **end, int base);

Description
Convert, like strtoul, a numerical expression string into a bfd_vma integer, and return that integer. (Though without as many bells and whistles as strtoul.) The expression is assumed to be unsigned (i.e., positive). If given a base, it is used as the base for conversion. A base of 0 causes the function to interpret the string in hex if a leading "0x" or "0X" is found, otherwise in octal if a leading zero is found, otherwise in decimal. Overflow is not detected.

bfd_copy_private_bfd_data

Synopsis

boolean bfd_copy_private_bfd_data(bfd *ibfd, bfd *obfd);

Description
Copy private BFD information from the BFD ibfd to the the BFD obfd. Return true on success, false on error. Possible error returns are:

• bfd_error_no_memory - Not enough memory exists to create private data for obfd.

#define bfd_copy_private_bfd_data(ibfd, obfd) \
     BFD_SEND (ibfd, _bfd_copy_private_bfd_data, \
		(ibfd, obfd))

bfd_merge_private_bfd_data

Synopsis

boolean bfd_merge_private_bfd_data(bfd *ibfd, bfd *obfd);

Description
Merge private BFD information from the BFD ibfd to the the output file BFD obfd when linking. Return true on success, false on error. Possible error returns are:

• bfd_error_no_memory - Not enough memory exists to create private data for obfd.

#define bfd_merge_private_bfd_data(ibfd, obfd) \
     BFD_SEND (ibfd, _bfd_merge_private_bfd_data, \
		(ibfd, obfd))

bfd_set_private_flags

Synopsis

boolean bfd_set_private_flags(bfd *abfd, flagword flags);

Description
Set private BFD flag information in the BFD abfd. Return true on success, false on error. Possible error returns are:

• bfd_error_no_memory - Not enough memory exists to create private data for obfd.

#define bfd_set_private_flags(abfd, flags) \
     BFD_SEND (abfd, _bfd_set_private_flags, \
		(abfd, flags))

stuff

Description
Stuff which should be documented:

#define bfd_sizeof_headers(abfd, reloc) \
     BFD_SEND (abfd, _bfd_sizeof_headers, (abfd, reloc))

#define bfd_find_nearest_line(abfd, sec, syms, off, file, func, line) \
     BFD_SEND (abfd, _bfd_find_nearest_line,  (abfd, sec, syms, off, file, func, line))

        /* Do these three do anything useful at all, for any back end?  */
#define bfd_debug_info_start(abfd) \
        BFD_SEND (abfd, _bfd_debug_info_start, (abfd))

#define bfd_debug_info_end(abfd) \
        BFD_SEND (abfd, _bfd_debug_info_end, (abfd))

#define bfd_debug_info_accumulate(abfd, section) \
        BFD_SEND (abfd, _bfd_debug_info_accumulate, (abfd, section))

#define bfd_stat_arch_elt(abfd, stat) \
        BFD_SEND (abfd, _bfd_stat_arch_elt,(abfd, stat))

#define bfd_update_armap_timestamp(abfd) \
        BFD_SEND (abfd, _bfd_update_armap_timestamp, (abfd))

#define bfd_set_arch_mach(abfd, arch, mach)\
        BFD_SEND ( abfd, _bfd_set_arch_mach, (abfd, arch, mach))

#define bfd_relax_section(abfd, section, link_info, again) \
       BFD_SEND (abfd, _bfd_relax_section, (abfd, section, link_info, again))

#define bfd_link_hash_table_create(abfd) \
	BFD_SEND (abfd, _bfd_link_hash_table_create, (abfd))

#define bfd_link_add_symbols(abfd, info) \
	BFD_SEND (abfd, _bfd_link_add_symbols, (abfd, info))

#define bfd_final_link(abfd, info) \
	BFD_SEND (abfd, _bfd_final_link, (abfd, info))

#define bfd_free_cached_info(abfd) \
       BFD_SEND (abfd, _bfd_free_cached_info, (abfd))

#define bfd_get_dynamic_symtab_upper_bound(abfd) \
	BFD_SEND (abfd, _bfd_get_dynamic_symtab_upper_bound, (abfd))

#define bfd_canonicalize_dynamic_symtab(abfd, asymbols) \
	BFD_SEND (abfd, _bfd_canonicalize_dynamic_symtab, (abfd, asymbols))

#define bfd_get_dynamic_reloc_upper_bound(abfd) \
	BFD_SEND (abfd, _bfd_get_dynamic_reloc_upper_bound, (abfd))

#define bfd_canonicalize_dynamic_reloc(abfd, arels, asyms) \
	BFD_SEND (abfd, _bfd_canonicalize_dynamic_reloc, (abfd, arels, asyms))

extern bfd_byte *bfd_get_relocated_section_contents
	PARAMS ((bfd *, struct bfd_link_info *,
		  struct bfd_link_order *, bfd_byte *,
		  boolean, asymbol **));