Alan Modra ad8e1ba599 * elf64-ppc.c: Move TARGET_LITTLE_SYM and other macros used by
elfxx-target.h so that we can use elf_backend_got_header_size.
	(ELF_MACHINE_ALT1, ELF_MACHINE_ALT2): Delete.
	(GLINK_CALL_STUB_SIZE): Modify.  Define new glink call stub and
	associated macros.
	(ppc64_elf_howto_raw <GOT_TPREL16_DS, GOT_TPREL16_LO_DS>): Correct
	dst_mask.
	(enum ppc_stub_type): Add ppc_stub_long_branch_r2off and
	ppc_stub_plt_branch_r2off.
	(struct ppc_stub_hash_entry): Reorganize.
	(struct ppc_link_hash_table): Add no_multi_toc, multi_toc_needed,
	toc_curr, toc_off and emit_stub_syms.
	(ppc64_elf_link_hash_table_create): Init them.
	(ppc_stub_name): Correct string size.
	(ppc64_elf_check_relocs): Set has_gp_reloc on GOT and TOC relocs.
	(ppc64_elf_size_dynamic_sections): Set no_multi_toc if GOT entries
	used.
	(ppc_type_of_stub): Tweak root.type test.
	(build_plt_stub): Remove glink code.  Adjust for insn macro changes.
	(ppc_size_one_stub): Handle ppc_stub_long_branch_r2off and
	ppc_stub_plt_branch_r2off.
	(ppc_build_one_stub): Likewise.  Fix var shadowing.  Correct addis,addi
	range test.  Use toc_off to calculte r2 values.  Handle emit_stub_syms.
	(ppc64_elf_setup_section_lists): Remove htab creator flavour test.
	Initialize elf_gp and toc_curr.
	(ppc64_elf_next_toc_section, ppc64_elf_reinit_toc): New functions.
	(ppc64_elf_next_input_section): Set toc_off.
	(group_sections): Ensure groups have the same TOC.
	(ppc64_elf_size_stubs): Check whether we need a TOC adjusting stub.
	(ppc64_elf_build_stubs): Add emit_stub_syms param, and stash in htab.
	Build new glink stub.
	(ppc64_elf_relocate_section): Handle multiple TOCs.  Fix comments.
	(ppc64_elf_finish_dynamic_sections): Adjust DT_PPC64_GLINK.
	* elf64-ppc.h (ppc64_elf_build_stubs): Update prototype.
	(ppc64_elf_next_toc_section, ppc64_elf_reinit_toc): Declare.
	* section.c (struct sec): Rename flag12 to has_gp_reloc.
	(STD_SECTION): Update.
	* ecoff.c (bfd_debug_section): Update comment.
	* bfd-in2.h: Regenerate.
2003-06-08 14:06:38 +00:00
..
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bfd
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bfd
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BFD is an object file library.  It permits applications to use the
same routines to process object files regardless of their format.

BFD is used by the GNU debugger, assembler, linker, and the binary
utilities.

The documentation on using BFD is scanty and may be occasionally
incorrect.  Pointers to documentation problems, or an entirely
rewritten manual, would be appreciated.

There is some BFD internals documentation in doc/bfdint.texi which may
help programmers who want to modify BFD.

BFD is normally built as part of another package.  See the build
instructions for that package, probably in a README file in the
appropriate directory.

BFD supports the following configure options:

  --target=TARGET
	The default target for which to build the library.  TARGET is
	a configuration target triplet, such as sparc-sun-solaris.
  --enable-targets=TARGET,TARGET,TARGET...
	Additional targets the library should support.  To include
	support for all known targets, use --enable-targets=all.
  --enable-64-bit-bfd
	Include support for 64 bit targets.  This is automatically
	turned on if you explicitly request a 64 bit target, but not
	for --enable-targets=all.  This requires a compiler with a 64
	bit integer type, such as gcc.
  --enable-shared
	Build BFD as a shared library.
  --with-mmap
	Use mmap when accessing files.  This is faster on some hosts,
	but slower on others.  It may not work on all hosts.

Report bugs with BFD to bug-binutils@gnu.org.

Patches are encouraged.  When sending patches, always send the output
of diff -u or diff -c from the original file to the new file.  Do not
send default diff output.  Do not make the diff from the new file to
the original file.  Remember that any patch must not break other
systems.  Remember that BFD must support cross compilation from any
host to any target, so patches which use ``#ifdef HOST'' are not
acceptable.  Please also read the ``Reporting Bugs'' section of the
gcc manual.

Bug reports without patches will be remembered, but they may never get
fixed until somebody volunteers to fix them.