binutils-gdb/ld
Maciej W. Rozycki eb8476a6e2 bfd/
* elflink.c (bfd_elf_record_link_assignment): Remove --defsym
	symbols special case.

	ld/
	* ldexp.h (etree_union): Add defsym member to the assign member
	structure.
	(exp_assign): Add hidden argument to prototype.
	* ldexp.c (exp_fold_tree_1): Use the defsym member to handle
	--defsym symbols.
	(exp_assop): Add defsym argument, initialize the defsym member
	of the assign structure.
	(exp_assign): Handle hidden symbols.
	(exp_defsym): Update to use the defsym argument to exp_assop.
	(exp_provide): Update to handle the defsym argument to exp_assop.
	* ldlex.l (HIDDEN): New token.
	* ldgram.y (HIDDEN): Likewise.
	(assignment, section): Update calls to exp_assign.
	* ldctor.c (ldctor_build_sets): Likewise.
	* mri.c (mri_format): Likewise.
	* ldlang.c (lang_insert_orphan, lang_leave_overlay): Likewise.
	(open_input_bfds): Remove --defsym symbols special case.
	* emultempl/beos.em (gld_${EMULATION_NAME}_set_symbols): Update
	call to exp_assign.
	* emultempl/pe.em (gld_${EMULATION_NAME}_set_symbols): Likewise.
	* emultempl/pep.em (gld_${EMULATION_NAME}_set_symbols): Likewise.
	* emultempl/spuelf.em (spu_place_special_section): Likewise.
	* emultempl/xtensaelf.em (ld_xtensa_insert_page_offsets):
	Likewise.
	* ld.texinfo (Assigning Values to Symbols): Add HIDDEN.
	(HIDDEN): New subsection.
2012-08-06 22:27:52 +00:00
..
emulparams 2012-07-13 Andreas Krebbel <Andreas.Krebbel@de.ibm.com> 2012-07-13 15:47:27 +00:00
emultempl bfd/ 2012-08-06 22:27:52 +00:00
po Updated translations 2012-07-30 08:43:46 +00:00
scripttempl Don't call compare_section in case of by_none 2012-08-01 01:03:47 +00:00
testsuite gas/testsuite/ 2012-08-06 21:28:45 +00:00
.gitignore
aclocal.m4
ChangeLog bfd/ 2012-08-06 22:27:52 +00:00
ChangeLog-0001
ChangeLog-0203
ChangeLog-2004
ChangeLog-2005
ChangeLog-2006
ChangeLog-2007
ChangeLog-2008
ChangeLog-2009
ChangeLog-2010
ChangeLog-2011
ChangeLog-9197
ChangeLog-9899
config.in
configure bfd: update to AC_INIT 2012-07-27 16:30:57 +00:00
configure.host
configure.in bfd: update to AC_INIT 2012-07-27 16:30:57 +00:00
configure.tgt Replace -linux-gnux32 with -linux-gnu 2012-06-24 21:47:45 +00:00
deffile.h
deffilep.y
dep-in.sed
elf-hints-local.h
fdl.texi
gen-doc.texi
genscrba.sh
genscripts.sh
h8-doc.texi
ld.h Add SORT_NONE and don't sort sort .init/.fini sections 2012-07-10 06:50:57 +00:00
ld.texinfo bfd/ 2012-08-06 22:27:52 +00:00
ldcref.c
ldctor.c bfd/ 2012-08-06 22:27:52 +00:00
ldctor.h
ldemul.c
ldemul.h
ldexp.c bfd/ 2012-08-06 22:27:52 +00:00
ldexp.h bfd/ 2012-08-06 22:27:52 +00:00
ldfile.c PR ld/14357 2012-07-13 13:20:27 +00:00
ldfile.h
ldgram.y bfd/ 2012-08-06 22:27:52 +00:00
ldint.texinfo
ldlang.c bfd/ 2012-08-06 22:27:52 +00:00
ldlang.h
ldlex-wrapper.c
ldlex.h
ldlex.l bfd/ 2012-08-06 22:27:52 +00:00
ldmain.c PR ld/14357 2012-07-13 13:20:27 +00:00
ldmain.h PR ld/14357 2012-07-13 13:20:27 +00:00
ldmisc.c
ldmisc.h
ldver.c
ldver.h
ldwrite.c
ldwrite.h
lexsup.c PR ld/14357 2012-07-13 13:20:27 +00:00
MAINTAINERS
Makefile.am
Makefile.in
mri.c bfd/ 2012-08-06 22:27:52 +00:00
mri.h
NEWS binutils/ 2012-07-27 08:13:03 +00:00
pe-dll.c PR ld/14357 2012-07-13 13:20:27 +00:00
pe-dll.h
pep-dll.c
pep-dll.h
plugin.c
plugin.h
README
stamp-h.in
sysdep.h
testplug.c
TODO

		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.