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013dec1ad9
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Ian Lance Taylor 013dec1ad9 Add support for ELF shared libraries. Loosely based on work by 
Eric Youngdale <ericy@cais.com>.
	* libelf.h (struct elf_backend_data): Add new fields for dynamic
	linking: elf_backend_create_dynamic_sections,
	elf_backend_adjust_dynamic_symbol,
	elf_backend_size_dynamic_sections,
	elf_backend_finish_dynamic_symbol,
	elf_backend_finish_dynamic_sections.
	(struct elf_link_hash_entry): Change type of align field to
	bfd_size_type.  Add fields dynindx, dynstr_index, weakdef,
	elf_link_hash_flags.
	(struct elf_link_hash_table): Add fields dynobj, dynsymcount,
	dynstr, bucketcount.
	(bfd_elf32_swap_reloc_in, bfd_elf32_swap_reloc_out): Declare.
	(bfd_elf32_swap_reloca_in, bfd_elf32_swap_reloca_out): Declare.
	(bfd_elf32_swap_dyn_in, bfd_elf32_swap_dyn_out): Declare.
	(bfd_elf32_add_dynamic_entry): Declare.
	(bfd_elf64_swap_reloc_in, bfd_elf64_swap_reloc_out): Declare.
	(bfd_elf64_swap_reloca_in, bfd_elf64_swap_reloca_out): Declare.
	(bfd_elf64_swap_dyn_in, bfd_elf64_swap_dyn_out): Declare.
	(bfd_elf64_add_dynamic_entry): Declare.
	* elfcode.h (Elf_External_Dyn): Define.
	(elf_swap_reloc_in): Define as macro using NAME.  Make externally
	visible.
	(elf_swap_reloc_out): Likewise.
	(elf_swap_reloca_in, elf_swap_reloca_out): Likewise.
	(elf_swap_dyn_in, elf_swap_dyn_out): Define as macro using NAME
	and as new externally visible function.
	(elf_fake_sections): Set section type of dynamic sections based on
	section names.
	(elf_write_phdrs): Remove.
	(assign_file_position_for_section): Add new align argument.
	Change all callers.
	(get_program_header_size): New static function.
	(struct seg_info): Remove.
	(map_program_segments): Completely rewrite.
	(assign_file_positions_except_relocs): Completely rewrite.
	(assign_file_positions_for_relocs): Don't set a file position for
	sections which already have one.  Don't bother to align the file
	position here.
	(section_from_elf_index): Handle SHT_HASH and SHT_DYNAMIC
	section types.
	(elf_section_from_bfd_section): Likewise.
	(elf_slurp_symbol_table): If section_from_elf_index fails, just
	use bfd_abs_section rather than returning an error.
	(elf_sizeof_headers): Make useful.
	(elf_link_record_dynamic_symbol): New static function.
	(elf_link_add_object_symbols): Handle dynamic objects.
	(elf_link_create_dynamic_sections): New static function.
	(elf_add_dynamic_entry): Define as macro using NAME and as new
	externally visible function.
	(NAME(bfd_elf,record_link_assignment)): New function.
	(elf_buckets): New static variable.
	(NAME(bfd_elf,size_dynamic_sections)): New function.
	(struct elf_final_link_info): Add dynsym_sec and hash_sec fields.
	(elf_bfd_final_link): Handle dynamic linking.  Create a section
	symbol for all ELF sections, not all BFD sections.  Store section
	symbol index in target_index field, not index field.  Traverse
	over global symbols even if stripping.
	(elf_link_output_extsym): Output dynamic symbols.  Mark symbols
	defined by dynamic objects as undefined.
	(elf_link_input_bfd): Ignore dynamic objects.  Use target_index
	field for section relocs, and make sure it is set.
	(elf_reloc_link_order): Use target_index field for section relocs,
	and make sure it is set.
	* elf.c (elf_link_hash_newfunc): Initialize dynindx, dynstr_index,
	weakdef and elf_link_hash_flags fields.
	(_bfd_elf_link_hash_table_create): Initialize dynobj, dynsymcount,
	dynstr and bucketcount fields.
	* elf32-target.h: Initialize new dynamic linking fields.
	* elf64-target.h: Likewise.
	* elf32-i386.c: New functions for dynamic linking support.
	* elf32-sparc.c: Likewise.
	* bfd-in.h (bfd_elf32_record_link_assignment): Declare.
	(bfd_elf64_record_link_assignment): Declare.
	(bfd_elf32_size_dynamic_sections): Declare.
	(bfd_elf64_size_dynamic_sections): Declare.
	* bfd-in2.h: Rebuilt.
1994-05-19 18:23:40 +00:00
bfd Add support for ELF shared libraries. Loosely based on work by 1994-05-19 18:23:40 +00:00
binutils * config/default.exp, config/unix.exp: Replace error 1994-05-17 21:06:39 +00:00
config Change INSTALL_LASTness. 1994-05-19 16:31:33 +00:00
gas Expand my entry a bit. 1994-05-18 17:32:52 +00:00
gdb * config/mt-lynx, config/mt-m68k, config/mt-mips-ecoff, 1994-05-19 00:06:29 +00:00
gprof * Makefile.in (.m.c:): Added .SUFFIXES : .m 1994-05-17 22:56:13 +00:00
include * common.h (EM_HPPA): Delete. 1994-05-16 19:23:59 +00:00
ld * Makefile.in (install): Redirect output of ln to /dev/null. 1994-05-18 17:18:23 +00:00
mmalloc
opcodes * a29k-dis.c (print_insn): Print 'x' type operand in hex. 1994-05-08 00:19:06 +00:00
readline * readline.c (_rl_set_screen_size): Don't compile if __GO32__ is 1994-05-09 23:01:56 +00:00
sim * interp.c (sim_*): Make result void where there isn't one. 1994-05-18 21:37:08 +00:00
.Sanitize * configure.in (target==go32): Don't build gdb. 1994-05-07 23:48:27 +00:00
Build-A-Release.mk
build-all.mk more cleanup 1994-05-18 00:03:28 +00:00
ChangeLog Thu May 19 09:29:12 1994 Steve Chamberlain (sac@cygnus.com) 1994-05-19 16:31:06 +00:00
ChangeLog.mpw Tue Apr 26 12:54:52 1994 Stan Shebs (shebs@andros.cygnus.com) 1994-04-26 21:45:10 +00:00
config.guess
config.sub * config.sub (sparc64-elf): Fix os. 1994-04-16 19:19:24 +00:00
configure * configure: Ignore --x-includes and --x-libraries, for Autoconf 1994-04-08 19:03:23 +00:00
configure.in Thu May 19 09:29:12 1994 Steve Chamberlain (sac@cygnus.com) 1994-05-19 16:31:06 +00:00
DOC.Sanitize
INSTALL
install-texi.in
Install.in
install.sh * install.sh: If $dstdir exists, don't check whether each component does. 1994-04-27 19:19:56 +00:00
intro.texi
Makefile.in Thu May 19 09:29:12 1994 Steve Chamberlain (sac@cygnus.com) 1994-05-19 16:31:06 +00:00
mpw-build.in
mpw-config.in
mpw-configure
mpw-README
Pack-A-Progressive
SUPPORTED
tape-labels-tex.in
test-build.mk more cleanup 1994-05-18 00:03:28 +00:00