binutils-gdb/ld
Maciej W. Rozycki 1bbce13264 bfd/
* elfxx-mips.h (_bfd_mips_elf_get_synthetic_symtab): New
	prototype.
	* elf32-mips.c (elf_backend_plt_sym_val): Remove macro.
	(bfd_elf32_get_synthetic_symtab): New macro.
	* elfxx-mips.c (plt_entry): New structure.
	(mips_elf_link_hash_entry): Add use_plt_entry member.
	(mips_elf_link_hash_table): Rename plt_entry_size member to
	plt_mips_entry_size.  Add plt_comp_entry_size, plt_mips_offset,
	plt_comp_offset, plt_got_index entries and plt_header_is_comp
	members.
	(STUB_LW_MICROMIPS, STUB_MOVE_MICROMIPS): New macros.
	(STUB_LUI_MICROMIPS, STUB_JALR_MICROMIPS): Likewise.
	(STUB_ORI_MICROMIPS, STUB_LI16U_MICROMIPS): Likewise.
	(STUB_LI16S_MICROMIPS): Likewise.
	(MICROMIPS_FUNCTION_STUB_NORMAL_SIZE): Likewise.
	(MICROMIPS_FUNCTION_STUB_BIG_SIZE): Likewise.
	(micromips_o32_exec_plt0_entry): New variable.
	(mips16_o32_exec_plt_entry): Likewise.
	(micromips_o32_exec_plt_entry): Likewise.
	(mips_elf_link_hash_newfunc): Initialize use_plt_entry.
	(mips_elf_output_extsym): Update to use gotplt_union's plist
	member rather than offset.
	(mips_elf_gotplt_index): Likewise.  Remove the VxWorks
	restriction.  Use MIPS_ELF_GOT_SIZE to calculate GOT address.
	(mips_elf_count_got_symbols): Update to use gotplt_union's plist
	member rather than offset.
	(mips_elf_calculate_relocation): Handle MIPS16/microMIPS PLT
	entries.
	(_bfd_mips_elf_create_dynamic_sections): Don't set PLT sizes
	here.
	(mips_elf_make_plt_record): New function.
	(_bfd_mips_elf_check_relocs): Update comment.  Record occurences
	of JAL relocations that might need a PLT entry.
	(_bfd_mips_elf_adjust_dynamic_symbol): Update to use
	gotplt_union's plist member rather than offset.  Set individual
	PLT entry sizes here.  Handle MIPS16/microMIPS PLT entries.
	Don't set the symbol's value in the symbol table for PLT
	references here.  Don't set the PLT or PLT GOT section sizes
	here.
	(mips_elf_estimate_stub_size): Handle microMIPS stubs.
	(mips_elf_allocate_lazy_stub): Likewise.
	(mips_elf_lay_out_lazy_stubs): Likewise.  Define a _MIPS_STUBS_
	magic symbol.
	(mips_elf_set_plt_sym_value): New function.
	(_bfd_mips_elf_size_dynamic_sections): Set PLT header size and
	PLT and PLT GOT section sizes here.  Set the symbol values in
	the symbol table for PLT references here.  Handle microMIPS
	annotation of the _PROCEDURE_LINKAGE_TABLE_ magic symbol.
	(_bfd_mips_elf_finish_dynamic_symbol): Update to use
	gotplt_union's plist member rather than offset.  Handle
	MIPS16/microMIPS PLT entries.  Handle microMIPS stubs.
	(_bfd_mips_vxworks_finish_dynamic_symbol): Update to use
	gotplt_union's plist member rather than offset.  Use
	MIPS_ELF_GOT_SIZE to calculate GOT address.
	(mips_finish_exec_plt): Handle microMIPS PLT.  Return status.
	(_bfd_mips_elf_finish_dynamic_sections): Handle result from
	mips_finish_exec_plt.
	(_bfd_mips_elf_link_hash_table_create): Update to use
	gotplt_union's plist member rather than offset.
	(_bfd_mips_elf_get_synthetic_symtab): New function.

	include/elf/
	* mips.h (ELF_ST_IS_MIPS_PLT): Respect STO_MIPS16 setting.
	(ELF_ST_SET_MIPS_PLT): Likewise.

	gdb/
	* mips-tdep.c (mips_elf_make_msymbol_special): Handle MIPS16 and
	microMIPS synthetic symbols.

	ld/
	* emulparams/elf32btsmip.sh: Arrange for .got.plt to be placed
	as close to .plt as possible.
	* scripttempl/elf.sc: Handle $INITIAL_READWRITE_SECTIONS and
	$PLT_NEXT_DATA variables.

	ld/testsuite/
	* ld-mips-elf/jalx-2.dd: Update for microMIPS PLT support.
	* ld-mips-elf/pic-and-nonpic-3a.dd: Update for the _MIPS_STUBS_
	magic symbol.
	* ld-mips-elf/pic-and-nonpic-3b.dd: Likewise.
	* ld-mips-elf/pic-and-nonpic-6-n32.dd: Likewise.
	* ld-mips-elf/pic-and-nonpic-6-n64.dd: Likewise.
	* ld-mips-elf/pic-and-nonpic-6-o32.dd: Likewise.
	* ld-mips-elf/stub-dynsym-1-10000.d: Likewise.
	* ld-mips-elf/stub-dynsym-1-2fe80.d: Likewise.
	* ld-mips-elf/stub-dynsym-1-7fff.d: Likewise.
	* ld-mips-elf/stub-dynsym-1-8000.d: Likewise.
	* ld-mips-elf/stub-dynsym-1-fff0.d: Likewise.
	* ld-mips-elf/tlslib-o32.d: Likewise.

	opcodes/
	* mips-dis.c (is_mips16_plt_tail): New function.
	(print_insn_mips16): Handle MIPS16 PLT entry's GOT slot address
	word.
	(is_compressed_mode_p): Handle MIPS16/microMIPS PLT entries.
2013-06-24 23:55:46 +00:00
..
emulparams bfd/ 2013-06-24 23:55:46 +00:00
emultempl * configure.ac (mips*-*-bsd*, mips*-*-ultrix*, mips*-*-osf*) 2013-06-22 16:44:16 +00:00
po
scripttempl bfd/ 2013-06-24 23:55:46 +00:00
testsuite bfd/ 2013-06-24 23:55:46 +00:00
.gitignore
aclocal.m4
ChangeLog bfd/ 2013-06-24 23:55:46 +00:00
ChangeLog-0001
ChangeLog-0203
ChangeLog-2004
ChangeLog-2005
ChangeLog-2006
ChangeLog-2007
ChangeLog-2008
ChangeLog-2009
ChangeLog-2010
ChangeLog-2011
ChangeLog-2012 Rotate binutils ChangeLog for 2013 2013-01-02 17:06:32 +00:00
ChangeLog-9197
ChangeLog-9899
config.in
configure Add HOSTING_SCRT0 for PIE test 2013-01-19 19:36:37 +00:00
configure.host * configure.host: Add x86_64-*-cygwin* as valid host. 2013-03-05 11:54:29 +00:00
configure.in Add HOSTING_SCRT0 for PIE test 2013-01-19 19:36:37 +00:00
configure.tgt * configure.ac (mips*-*-bsd*, mips*-*-ultrix*, mips*-*-osf*) 2013-06-22 16:44:16 +00:00
deffile.h
deffilep.y * deffilep.y (def_image_name): Adjust type of base-address 2013-01-25 11:39:42 +00:00
dep-in.sed
elf-hints-local.h Remove trailing white spaces in ld 2013-01-10 20:08:03 +00:00
fdl.texi
gen-doc.texi Add copyright notices 2012-12-17 16:56:12 +00:00
genscrba.sh
genscripts.sh
h8-doc.texi Add copyright notices 2012-12-17 16:56:12 +00:00
ld.h
ld.texinfo * configure.ac (mips*-*-bsd*, mips*-*-ultrix*, mips*-*-osf*) 2013-06-22 16:44:16 +00:00
ldcref.c * ldcref.c (output_one_cref): Place common definitions after 2013-06-12 07:48:32 +00:00
ldctor.c
ldctor.h
ldemul.c
ldemul.h
ldexp.c Remove trailing white spaces in ld 2013-01-10 20:08:03 +00:00
ldexp.h
ldfile.c * ldfile.c (ldfile_open_command_file_1): Return after einfo 2013-03-06 13:48:46 +00:00
ldfile.h
ldgram.y
ldint.texinfo
ldlang.c * ldlang.c (load_symbols): Report "error adding symbols" on 2013-04-04 14:38:47 +00:00
ldlang.h Remove trailing white spaces in ld 2013-01-10 20:08:03 +00:00
ldlex-wrapper.c Add copyright notices 2012-12-17 16:56:12 +00:00
ldlex.h * ld.texinfo (-Tldata-segment): Describe. 2013-01-14 13:37:10 +00:00
ldlex.l
ldmain.c * configure.ac (mips*-*-bsd*, mips*-*-ultrix*, mips*-*-osf*) 2013-06-22 16:44:16 +00:00
ldmain.h * archures.c: Add some more MSP430 machine numbers. 2013-05-02 21:06:15 +00:00
ldmisc.c Remove trailing white spaces in ld 2013-01-10 20:08:03 +00:00
ldmisc.h
ldver.c Update copyright year to 2013 2013-01-02 17:15:38 +00:00
ldver.h
ldwrite.c Remove trailing white spaces in ld 2013-01-10 20:08:03 +00:00
ldwrite.h
lexsup.c * ld.texinfo (-Tldata-segment): Describe. 2013-01-14 13:37:10 +00:00
MAINTAINERS Add copyright notices 2012-12-17 16:56:12 +00:00
Makefile.am bfd/ 2013-06-23 20:08:23 +00:00
Makefile.in bfd/ 2013-06-23 20:08:23 +00:00
mri.c
mri.h
NEWS * configure.ac (mips*-*-bsd*, mips*-*-ultrix*, mips*-*-osf*) 2013-06-22 16:44:16 +00:00
pe-dll.c * pe-dll.c (process_def_file_and_drectve): Don't handle VC 2013-03-21 14:05:29 +00:00
pe-dll.h
pep-dll.c
pep-dll.h
plugin.c 2013-02-19 Sandra Loosemore <sandra@codesourcery.com> 2013-02-19 03:59:08 +00:00
plugin.h
README Add copyright notices 2012-12-17 16:56:12 +00:00
stamp-h.in
sysdep.h
testplug.c
TODO

This file contains invisible Unicode characters

This file contains invisible Unicode characters that are indistinguishable to humans but may be processed differently by a computer. If you think that this is intentional, you can safely ignore this warning. Use the Escape button to reveal them.

		README for LD

This is the GNU linker.  It is distributed with other "binary
utilities" which should be in ../binutils.  See ../binutils/README for
more general notes, including where to send bug reports.

There are many features of the linker:

* The linker uses a Binary File Descriptor library (../bfd)
  that it uses to read and write object files.  This helps
  insulate the linker itself from the format of object files.

* The linker supports a number of different object file
  formats.  It can even handle multiple formats at once:
  Read two input formats and write a third.

* The linker can be configured for cross-linking.

* The linker supports a control language.

* There is a user manual (ld.texinfo), as well as the
  beginnings of an internals manual (ldint.texinfo).

Installation
============

See ../binutils/README.

If you want to make a cross-linker, you may want to specify
a different search path of -lfoo libraries than the default.
You can do this by setting the LIB_PATH variable in ./Makefile
or using the --with-lib-path configure switch.

To build just the linker, make the target all-ld from the top level
directory (one directory above this one).

Porting to a new target
=======================

See the ldint.texinfo manual.

Reporting bugs etc
===========================

See ../binutils/README.

Known problems
==============

The Solaris linker normally exports all dynamic symbols from an
executable.  The GNU linker does not do this by default.  This is
because the GNU linker tries to present the same interface for all
similar targets (in this case, all native ELF targets).  This does not
matter for normal programs, but it can make a difference for programs
which try to dlopen an executable, such as PERL or Tcl.  You can make
the GNU linker export all dynamic symbols with the -E or
--export-dynamic command line option.

HP/UX 9.01 has a shell bug that causes the linker scripts to be
generated incorrectly.  The symptom of this appears to be "fatal error
- scanner input buffer overflow" error messages.  There are various
workarounds to this:
  * Build and install bash, and build with "make SHELL=bash".
  * Update to a version of HP/UX with a working shell (e.g., 9.05).
  * Replace "(. ${srcdir}/scripttempl/${SCRIPT_NAME}.sc)" in
    genscripts.sh with "sh ${srcdir}..." (no parens) and make sure the
    emulparams script used exports any shell variables it sets.

Copyright (C) 2012 Free Software Foundation, Inc.

Copying and distribution of this file, with or without modification,
are permitted in any medium without royalty provided the copyright
notice and this notice are preserved.