binutils-gdb/ld
Nick Clifton 1d75a8e26e Force the AArch64 linker backend to refuse to link when it encounters unresoleable relocations.
* reloc.c (enum bfd_reloc_status): Start values at 2.
	* bfd-in2.h: Regenerate.
	* elfnn-aarch64.c (aarch64_relocate): Invert sense of function, so
	that a TRUE return indicates success.  Compare the result of
	calling _bfd_aarch64_elf_put_addend against bfd_reloc_ok.
	(build_one_stub): Change sense of tests against aarch64_relocate
	return value.
	(elfNN_aarch64_tls_relax): Return bfd_reloc_notsupported, rather
	than FALSE, when an error is detected.
	(elfNN_aarch64_final_link_relocate): Likewise.

	* testsuite/ld-aarch64/pcrel_pic_defined.d: Expect errors not
	warnings.  Expect errors about unsupported relocations.
	* testsuite/ld-aarch64/pcrel_pic_undefined.d: Likewise.
2017-10-12 13:38:20 +01:00
..
emulparams [ARC] Add JLI support. 2017-07-19 09:56:55 +02:00
emultempl Set dynamic_undefined_weak to zero for static PIEs 2017-10-12 14:37:11 +10:30
po Updated Turkish translation for the ld sub-directory. 2017-10-05 14:03:48 +01:00
scripttempl Add support for PE startup files that want to define their own constructor and desctructor sequencing. 2017-08-10 13:17:12 +01:00
testsuite Force the AArch64 linker backend to refuse to link when it encounters unresoleable relocations. 2017-10-12 13:38:20 +01:00
.gitignore
ChangeLog Force the AArch64 linker backend to refuse to link when it encounters unresoleable relocations. 2017-10-12 13:38:20 +01:00
ChangeLog-0001
ChangeLog-0203
ChangeLog-2004
ChangeLog-2005
ChangeLog-2006
ChangeLog-2007
ChangeLog-2008
ChangeLog-2009
ChangeLog-2010
ChangeLog-2011
ChangeLog-2012
ChangeLog-2013
ChangeLog-2014
ChangeLog-2015
ChangeLog-2016
ChangeLog-9197
ChangeLog-9899
MAINTAINERS
Makefile.am Correct ld/Makefile earmelfb_fuchsia dependencies 2017-10-10 14:44:58 +10:30
Makefile.in Correct ld/Makefile earmelfb_fuchsia dependencies 2017-10-10 14:44:58 +10:30
NEWS PR21294, Binary size regression on PPC embedded 2017-10-03 15:11:25 +10:30
README
TODO
aclocal.m4
config.in Add configure flag to enable gnu hash style by default. 2017-08-08 07:25:39 +09:30
configure Add new Brazilian Portuguese translation for the ld subdirectory. 2017-08-17 12:13:28 +01:00
configure.ac Add new Brazilian Portuguese translation for the ld subdirectory. 2017-08-17 12:13:28 +01:00
configure.host
configure.tgt MIPS/LD: Add OpenBSD/mips64 support 2017-09-19 15:20:41 +01:00
deffile.h
deffilep.y
dep-in.sed
elf-hints-local.h
fdl.texi
gen-doc.texi S/390: Add support for pgste marker 2017-06-23 08:00:46 +02:00
genscrba.sh
genscripts.sh
h8-doc.texi
ld.h Treat common symbol as undefined for --no-define-common 2017-08-06 08:19:04 -07:00
ld.texinfo ld -z relro documentation 2017-10-03 09:36:26 +10:30
ldbuildid.c
ldbuildid.h
ldcref.c ld internationalization fixes 2017-10-11 15:04:59 +10:30
ldctor.c
ldctor.h
ldemul.c
ldemul.h
ldexp.c
ldexp.h
ldfile.c
ldfile.h
ldgram.y Treat common symbol as undefined for --no-define-common 2017-08-06 08:19:04 -07:00
ldint.texinfo
ldlang.c ld internationalization fixes 2017-10-11 15:04:59 +10:30
ldlang.h LTO rescan archives 2017-09-02 17:39:04 +09:30
ldlex-wrapper.c
ldlex.h ld: Allow section groups to be resolved as part of a relocatable link 2017-06-06 09:53:38 +01:00
ldlex.l ld internationalization fixes 2017-10-11 15:04:59 +10:30
ldmain.c ld internationalization fixes 2017-10-11 15:04:59 +10:30
ldmain.h
ldmisc.c
ldmisc.h
ldver.c
ldver.h
ldwrite.c
ldwrite.h
lexsup.c Add -z globalaudit linker command line option to set the DF_GLOBALAUDIT flag bit in the dynamic tags. 2017-08-11 16:36:28 +01:00
mri.c
mri.h
pe-dll.c ld internationalization fixes 2017-10-11 15:04:59 +10:30
pe-dll.h
pep-dll.c
pep-dll.h
plugin.c ld internationalization fixes 2017-10-11 15:04:59 +10:30
plugin.h
stamp-h.in
sysdep.h
testplug.c
testplug2.c
testplug3.c
testplug4.c

README

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		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) 2012-2017 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.