binutils-gdb/ld
H.J. Lu 9a926d55ab X86-64: Allow copy relocs for building PIE
This patch allows copy relocs for non-GOT pc-relative relocation in PIE.

bfd/

	* elf64-x86-64.c (elf_x86_64_create_dynamic_sections): Always
	allow copy relocs for building executables.
	(elf_x86_64_check_relocs): Allow copy relocs for non-GOT
	pc-relative relocation in shared object.
	(elf_x86_64_adjust_dynamic_symbol): Allocate copy relocs for
	PIE.
	(elf_x86_64_relocate_section): Don't copy a pc-relative
	relocation into the output file if the symbol needs copy reloc.

ld/testsuite/

	* ld-x86-64/copyreloc-lib.c: New file.
	* ld-x86-64/copyreloc-main.c: Likewise.
	* ld-x86-64/copyreloc-main.out: Likewise.
	* ld-x86-64/copyreloc-main1.rd: Likewise.
	* ld-x86-64/copyreloc-main2.rd: Likewise.

	* ld-x86-64/x86-64.exp: Run copyreloc tests.
2014-12-02 15:19:25 -08:00
..
emulparams Optimize out i386/x86-64 JUMP_SLOT relocation 2014-11-25 05:05:39 -08:00
emultempl PowerPC64 --plt-align 2014-11-24 12:56:59 +10:30
po Updated/new translations provided by the Translations Project. 2014-10-29 16:34:04 +00:00
scripttempl * avrtiny.sc: Apply avr.sc fixes. 2014-11-11 20:44:03 +03:00
testsuite X86-64: Allow copy relocs for building PIE 2014-12-02 15:19:25 -08:00
.gitignore
aclocal.m4 * configure.in (AC_CHECK_FUNCS): Add setlocale. 2012-04-05 08:43:41 +00:00
ChangeLog Optimize out i386/x86-64 JUMP_SLOT relocation 2014-11-25 05:05:39 -08:00
ChangeLog-0001 Add copyright notices 2012-12-10 12:48:03 +00:00
ChangeLog-0203 Add copyright notices 2012-12-10 12:48:03 +00:00
ChangeLog-2004 Add copyright notices 2012-12-10 12:48:03 +00:00
ChangeLog-2005 Add copyright notices 2012-12-10 12:48:03 +00:00
ChangeLog-2006 Add copyright notices 2012-12-10 12:48:03 +00:00
ChangeLog-2007 Add copyright notices 2012-12-10 12:48:03 +00:00
ChangeLog-2008 strip off +x bits on non-executable/script files 2013-12-07 02:03:03 -05:00
ChangeLog-2009 Add copyright notices 2012-12-10 12:48:03 +00:00
ChangeLog-2010 Add copyright notices 2012-12-10 12:48:03 +00:00
ChangeLog-2011 Add copyright notices 2012-12-10 12:48:03 +00:00
ChangeLog-2012 Rotate binutils ChangeLog for 2013 2013-01-02 17:06:32 +00:00
ChangeLog-2013 New Year - binutils ChangeLog rotation 2014-01-08 05:32:12 -08:00
ChangeLog-9197 Add copyright notices 2012-12-10 12:48:03 +00:00
ChangeLog-9899 Add copyright notices 2012-12-10 12:48:03 +00:00
config.in configury changes to make ld plugin support controlled by --enable-plugins 2014-08-14 13:46:09 +09:30
configure Update libtool.m4 from GCC trunk 2014-11-24 09:14:09 -08:00
configure.ac configury changes to make ld plugin support controlled by --enable-plugins 2014-08-14 13:46:09 +09:30
configure.host Update copyright years 2014-03-05 22:16:15 +10:30
configure.tgt Add mips*-img-elf* target triple. 2014-09-12 14:25:15 +01:00
deffile.h Update copyright years 2014-03-05 22:16:15 +10:30
deffilep.y Update copyright years 2014-03-05 22:16:15 +10:30
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 Update copyright years 2014-03-05 22:16:15 +10:30
genscrba.sh
genscripts.sh fix 2014-05-28 ld Makefile.am changes 2014-06-02 14:52:52 +09:30
h8-doc.texi Update copyright years 2014-03-05 22:16:15 +10:30
ld.h Update copyright years 2014-03-05 22:16:15 +10:30
ld.texinfo PowerPC64 --plt-align 2014-11-24 12:56:59 +10:30
ldbuildid.c 2014-04-16 Steve Ellcey <sellcey@mips.com> 2014-04-16 10:45:08 -07:00
ldbuildid.h Add support for generating and inserting build IDs into COFF binaries. 2014-04-08 10:59:43 +01:00
ldcref.c Update copyright years 2014-03-05 22:16:15 +10:30
ldctor.c Update copyright years 2014-03-05 22:16:15 +10:30
ldctor.h Update copyright years 2014-03-05 22:16:15 +10:30
ldemul.c Add new link-map-text hook and RX auto-vector support. 2014-05-27 17:14:49 -04:00
ldemul.h Add new link-map-text hook and RX auto-vector support. 2014-05-27 17:14:49 -04:00
ldexp.c PROVIDE in linker script vs. built-in symbols 2014-06-07 14:55:12 +09:30
ldexp.h Update copyright years 2014-03-05 22:16:15 +10:30
ldfile.c Remove search path from -l:namespec DT_NEEDED 2014-03-14 12:54:24 +10:30
ldfile.h Update copyright years 2014-03-05 22:16:15 +10:30
ldgram.y Allow unquoted = as the first character in ldscript input_list names 2014-10-15 03:10:25 +02:00
ldint.texinfo Update copyright years 2014-03-05 22:16:15 +10:30
ldlang.c If "=" is the first character in a ldscript input file, force a sysroot prefix. 2014-10-15 03:04:21 +02:00
ldlang.h Linker part of PR16563 fix 2014-08-14 13:49:31 +09:30
ldlex-wrapper.c Update copyright years 2014-03-05 22:16:15 +10:30
ldlex.h Implement --print-sysroot in ld. 2014-10-17 13:06:56 +02:00
ldlex.l Allow unquoted = as the first character in ldscript input_list names 2014-10-15 03:10:25 +02:00
ldmain.c Add support for MIPS R6. 2014-09-15 12:15:55 +01:00
ldmain.h Update copyright years 2014-03-05 22:16:15 +10:30
ldmisc.c Update copyright years 2014-03-05 22:16:15 +10:30
ldmisc.h Update copyright years 2014-03-05 22:16:15 +10:30
ldver.c Update copyright years 2014-03-05 22:16:15 +10:30
ldver.h Update copyright years 2014-03-05 22:16:15 +10:30
ldwrite.c Linker part of PR16563 fix 2014-08-14 13:49:31 +09:30
ldwrite.h Update copyright years 2014-03-05 22:16:15 +10:30
lexsup.c Implement --print-sysroot in ld. 2014-10-17 13:06:56 +02:00
MAINTAINERS Update copyright years 2014-03-05 22:16:15 +10:30
Makefile.am Add moxiebox target 2014-07-27 08:51:20 -04:00
Makefile.in Regen ld/Makefile.in 2014-08-05 11:24:42 +09:30
mri.c Localize varible to avoid warning 2014-05-25 00:54:22 +09:30
mri.h Update copyright years 2014-03-05 22:16:15 +10:30
NEWS Add NEWS markers for 2.25. 2014-10-14 09:49:47 +02:00
pe-dll.c This is necessary for adding __cxa_atexit support for Cygwin in GCC without 2014-08-13 11:43:28 +01:00
pe-dll.h Update copyright years 2014-03-05 22:16:15 +10:30
pep-dll.c Update copyright years 2014-03-05 22:16:15 +10:30
pep-dll.h Update copyright years 2014-03-05 22:16:15 +10:30
plugin.c Simplify is_ir_dummy_bfd test 2014-08-14 13:39:40 +09:30
plugin.h Fix build breakage when ld plugins disabled 2014-08-12 20:49:58 +09:30
README Update copyright years 2014-03-05 22:16:15 +10:30
stamp-h.in
sysdep.h Don't include sys/param.h 2014-07-01 20:26:11 +09:30
testplug.c Update copyright years 2014-03-05 22:16:15 +10:30
TODO

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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) 2012-2014 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.