darling-gdb/ld
Roland McGrath 5a68afcf73 bfd/
2012-04-03  Roland McGrath  <mcgrathr@google.com>

	* elf-nacl.c: New file.
	* elf-nacl.h: New file.
	* elf32-i386.c (elf_backend_modify_segment_map): Define for
	bfd_elf32_i386_nacl_vec.
	(elf_backend_modify_program_headers): Likewise.
	* elf64-x86-64.c (elf_backend_modify_segment_map): Define for
	bfd_elf64_x86_64_nacl_vec and bfd_elf32_x86_64_nacl_vec.
	(elf_backend_modify_program_headers): Likewise.
	* Makefile.am (BFD32_BACKENDS, BFD64_BACKENDS): Add elf-nacl.lo here.
	(BFD32_BACKENDS_CFILES, BFD64_BACKENDS_CFILES): Add elf-nacl.c here.
	* Makefile.in: Regenerated.
	* configure.in (bfd_elf64_x86_64_nacl_vec): Add elf-nacl.o to tb here.
	(bfd_elf32_x86_64_nacl_vec): Likewise.
	(bfd_elf64_x86_64_vec, bfd_elf32_x86_64_vec): Likewise.
	(bfd_elf64_x86_64_freebsd_vec, bfd_elf64_x86_64_sol2_vec): Likewise.
	(bfd_elf64_l1om_vec, bfd_elf64_l1om_freebsd_vec): Likewise.
	(bfd_elf64_k1om_vec, bfd_elf64_k1om_freebsd_vec): Likewise.
	(bfd_elf32_i386_nacl_vec): Likewise.
	(bfd_elf32_i386_sol2_vec, bfd_elf32_i386_freebsd_vec): Likewise.
	(bfd_elf32_i386_vxworks_vec, bfd_elf32_i386_vec): Likewise.
	* configure: Regenerated.

binutils/testsuite/
2012-04-03  Roland McGrath  <mcgrathr@google.com>

	* lib/binutils-common.exp (is_elf_format): Consider *-*-nacl* to
	be ELF too.

	* binutils-all/elfedit-4.d: Add "#as: --64" option.

	* binutils-all/i386/i386.exp: Accept nacl targets too.
	* binutils-all/x86-64/x86-64.exp: Likewise.

gas/testsuite/
2012-04-03  Roland McGrath  <mcgrathr@google.com>

	* gas/i386/k1om.d: Add not-target match for *-*-nacl*.
	* gas/i386/l1om.d: Likewise.

ld/
2012-04-03  Roland McGrath  <mcgrathr@google.com>

	* configure.tgt (i[3-7]86-*-nacl*, x86_64-*-nacl*): Handle them.
	* emulparams/elf_nacl.sh: New file.
	* emulparams/elf_i386_nacl.sh: New file.
	* emulparams/elf32_x86_64_nacl.sh: New file.
	* emulparams/elf_x86_64_nacl.sh: New file.
	* Makefile.am (ALL_EMULATION_SOURCES): Add eelf_i386_nacl.c here.
	(ALL_64_EMULATION_SOURCES): Add eelf32_x86_64_nacl.c and
	eelf_x86_64_nacl.c here.
	(eelf_i386_nacl.c, eelf32_x86_64_nacl.c, eelf_x86_64_nacl.c):
	New targets.
	* Makefile.in: Regenerated.

	* scripttempl/elf.sc: Handle SEPARATE_CODE cases.

ld/testsuite/
2012-04-03  Roland McGrath  <mcgrathr@google.com>

	* ld-x86-64/ilp32-4-nacl.d: New file.
	* ld-x86-64/x86-64.exp: Run it.

	* ld-discard/discard.exp: Accept nacl targets too.
	* ld-elf/binutils.exp: Likewise.
	* ld-elf/comm-data.exp: Likewise.
	* ld-elf/elf.exp: Likewise.
	* ld-elf/tls_common.exp: Likewise.
	* ld-elfvers/vers.exp: Likewise.
	* ld-elfvsb/elfvsb.exp: Likewise.
	* ld-elfweak/elfweak.exp: Likewise.
	* ld-gc/gc.exp: Likewise.
	* ld-ifunc/binutils.exp: Likewise.
	* ld-ifunc/ifunc.exp: Likewise.
	* ld-linkonce/linkonce.exp:Likewise.
	* ld-pie/pie.exp: Likewise.
	* ld-shared/shared.exp: Likewise.
	* ld-undefined/weak-undef.exp: Likewise.
	* ld-unique/unique.exp: Likewise.
	* ld-x86-64/dwarfreloc.exp: Likewise.
	* ld-x86-64/line.exp: Likewise.

	* lib/ld-lib.exp (slurp_options): Support global array
	options_regsub to apply substitutions to the contents
	of options lines read from the file.
	* ld-i386/emit-relocs.d: Renamed to ...
	* ld-i386/emit-relocs.rd: ... this.
	* ld-i386/i386.exp: Accept nacl targets too.
	For them, use options_regsub to replace elf_i386 with
	elf_i386_nacl in run_dump_test cases; apply the same
	substitution in $i386tests; replace foo.rd expectations
	files with foo-nacl.rd in $i386tests.
	(i386tests): Change emit-relocs.d to emit-relocs.rd here.
	* ld-i386/emit-relocs-nacl.rd: New file.
	* ld-i386/plt-nacl.pd: New file.
	* ld-i386/plt-pic-nacl.pd: New file.
	* ld-i386/tlsbin-nacl.rd: New file.
	* ld-i386/tlsbindesc-nacl.rd: New file.
	* ld-i386/tlsdesc-nacl.rd: New file.
	* ld-i386/tlsgdesc-nacl.rd: New file.
	* ld-i386/tlsnopic-nacl.rd: New file.
	* ld-i386/tlspic-nacl.rd: New file.
	* ld-x86-64/x86-64.exp: Accept nacl targets too.
	For them, use options_regsub to replace elf_x86_64 with
	elf_x86_64_nacl in run_dump_test cases; apply the same
	substitution in $x86_64tests; replace foo.rd expectations
	files with foo-nacl.rd in $x86_64tests.
	Add explicit -melf_x86_64 to ld options in tests that need it,
	in case the default emulation is x32 (as it is for x86_64-nacl).
	* ld/testsuite/ld-x86-64/plt-nacl.pd: New file.
	* ld/testsuite/ld-x86-64/split-by-file-nacl.rd: New file.
	* ld/testsuite/ld-x86-64/tlsbin-nacl.rd: New file.
	* ld/testsuite/ld-x86-64/tlsbindesc-nacl.rd: New file.
	* ld/testsuite/ld-x86-64/tlsdesc-nacl.pd: New file.
	* ld/testsuite/ld-x86-64/tlsdesc-nacl.rd: New file.
	* ld/testsuite/ld-x86-64/tlsgdesc-nacl.rd: New file.
	* ld/testsuite/ld-x86-64/tlspic-nacl.rd: New file.

	* ld-i386/hidden2.d: Loosen regexps to match any file format variant,
	and not to depend on exact addresses, displacements, etc. where
	they are irrelevant.
	* ld-i386/pcrel16.d: Likewise.
	* ld-i386/pcrel16abs.d: Likewise.
	* ld-i386/pr12718.d: Likewise.
	* ld-i386/pr12921.d: Likewise.
	* ld-i386/reloc.d: Likewise.
	* ld-i386/tlsbin.dd: Likewise.
	* ld-i386/tlsbin.sd: Likewise.
	* ld-i386/tlsbin.td: Likewise.
	* ld-i386/tlsbindesc.dd: Likewise.
	* ld-i386/tlsbindesc.sd: Likewise.
	* ld-i386/tlsbindesc.td: Likewise.
	* ld-i386/tlsdesc.dd: Likewise.
	* ld-i386/tlsdesc.sd: Likewise.
	* ld-i386/tlsdesc.td: Likewise.
	* ld-i386/tlsg.sd: Likewise.
	* ld-i386/tlsgdesc.dd: Likewise.
	* ld-i386/tlsindntpoff.dd: Likewise.
	* ld-i386/tlsnopic.dd: Likewise.
	* ld-i386/tlsnopic.sd: Likewise.
	* ld-i386/tlspic.dd: Likewise.
	* ld-i386/tlspic.sd: Likewise.
	* ld-i386/tlspic.td: Likewise.
	* ld-i386/tlspie2.d: Likewise.
	* ld-x86-64/hidden2.d: Likewise.
	* ld-x86-64/pcrel16.d: Likewise.
	* ld-x86-64/pr12718.d: Likewise.
	* ld-x86-64/pr12921.d: Likewise.
	* ld-x86-64/protected3.d: Likewise.
	* ld-x86-64/tlsbin.dd: Likewise.
	* ld-x86-64/tlsbin.sd: Likewise.
	* ld-x86-64/tlsbin.td: Likewise.
	* ld-x86-64/tlsbindesc.dd: Likewise.
	* ld-x86-64/tlsbindesc.sd: Likewise.
	* ld-x86-64/tlsbindesc.td: Likewise.
	* ld-x86-64/tlsdesc.dd: Likewise.
	* ld-x86-64/tlsdesc.sd: Likewise.
	* ld-x86-64/tlsdesc.td: Likewise.
	* ld-x86-64/tlsg.sd: Likewise.
	* ld-x86-64/tlsgd5.dd: Likewise.
	* ld-x86-64/tlsgd6.dd: Likewise.
	* ld-x86-64/tlsgdesc.dd: Likewise.
	* ld-x86-64/tlspic.dd: Likewise.
	* ld-x86-64/tlspic.sd: Likewise.
	* ld-x86-64/tlspic.td: Likewise.

	* ld-x86-64/ilp32-8.d: Match any file format variant.
	Use a -Ttext and adjust expected results, to handle variant layouts.
	* ld-x86-64/ilp32-9.d: Likewise.

	* ld-i386/alloc.t: Remove superfluous OUTPUT_FORMAT statement.
	* ld-i386/pr12627.t: Likewise.

	* ld-x86-64/abs-l1om.d: Add target: constraint.
	* ld-x86-64/protected2-l1om.d: Likewise.
	* ld-x86-64/protected3-l1om.d: Likewise.
	* ld-x86-64/ilp32-4.d: Likewise.

	* ld-x86-64/plt.s: New file.
	* ld-x86-64/pltlib.s: New file.
	* ld-x86-64/plt.pd: New file.
	* ld-x86-64/x86-64.exp (x86_64tests): Add them.

	* ld-i386/plt.s: New file.
	* ld-i386/pltlib.s: New file.
	* ld-i386/plt.pd: New file.
	* ld-i386/plt-pic.s: New file.
	* ld-i386/plt-pic.pd: New file.
	* ld-i386/i386.exp (i386tests): Add them.
2012-04-03 16:01:38 +00:00
..
emulparams bfd/ 2012-04-03 16:01:38 +00:00
emultempl * ldlang.h (struct lang_input_statement_flags): New, extract from.. 2012-03-05 22:43:40 +00:00
po * po/vi.po: Updated Vietnamese translation. 2012-03-30 12:54:48 +00:00
scripttempl bfd/ 2012-04-03 16:01:38 +00:00
testsuite bfd/ 2012-04-03 16:01:38 +00:00
.gitignore bfd/binutils/gas/gprof/ld/libiberty/opcodes: add .gitignore 2010-12-09 09:03:18 +00:00
aclocal.m4 bfd/ 2010-05-07 12:28:50 +00:00
ChangeLog bfd/ 2012-04-03 16:01:38 +00:00
ChangeLog-0001
ChangeLog-0203
ChangeLog-2004 Fix a typo. 2009-01-13 15:49:13 +00:00
ChangeLog-2005
ChangeLog-2006
ChangeLog-2007
ChangeLog-2008 2009-01-03 Dave Korn <dave.korn.cygwin@gmail.com> 2009-01-03 17:43:45 +00:00
ChangeLog-2009 Move 2009 binutils ChangeLog to ChangeLog-2009. 2010-01-01 18:06:10 +00:00
ChangeLog-2010 Rotate binutils ChangeLogs. 2011-01-01 16:43:53 +00:00
ChangeLog-2011 Rotate ChangeLogs 2012-01-05 10:09:39 +00:00
ChangeLog-9197
ChangeLog-9899
config.in Regenerate. 2011-06-06 14:51:42 +00:00
configure ld/ 2012-03-27 19:23:59 +00:00
configure.host Add support for DragonFlyBSD target. 2011-03-28 11:18:27 +00:00
configure.in ld/ 2012-03-27 19:23:59 +00:00
configure.tgt bfd/ 2012-04-03 16:01:38 +00:00
deffile.h 2011-04-13 Kai Tietz <ktietz@redhat.com> 2011-04-13 12:53:36 +00:00
deffilep.y PR binutils/13710 2012-02-24 14:20:19 +00:00
dep-in.sed * dep-in.sed: Don't use \n in replacement part of s command. 2009-06-04 06:57:56 +00:00
elf-hints-local.h
fdl.texi etc/ChangeLog 2010-06-08 10:30:56 +00:00
gen-doc.texi include/elf/ 2011-03-31 08:58:28 +00:00
genscrba.sh
genscripts.sh Add SORT_BY_INIT_PRIORITY. 2010-12-15 14:56:40 +00:00
h8-doc.texi
ld.h * ldlang.h (struct lang_input_statement_flags): New, extract from.. 2012-03-05 22:43:40 +00:00
ld.texinfo bfd/ 2012-01-11 09:28:45 +00:00
ldcref.c PR ld/11367 2010-03-10 22:44:01 +00:00
ldctor.c PR ld/12356 2011-01-13 13:06:22 +00:00
ldctor.h update copyright dates 2009-09-02 07:25:43 +00:00
ldemul.c ld/ 2012-03-25 06:45:16 +00:00
ldemul.h update copyright dates 2009-09-02 07:25:43 +00:00
ldexp.c PR ld/13839 2012-03-14 05:24:02 +00:00
ldexp.h PR ld/13683 2012-02-22 16:27:35 +00:00
ldfile.c PR ld/10340 2012-03-08 05:29:33 +00:00
ldfile.h PR ld/10340 2012-03-08 05:29:33 +00:00
ldgram.y * ldlang.h (struct lang_input_statement_flags): New, extract from.. 2012-03-05 22:43:40 +00:00
ldint.texinfo Add directory section for info document. 2010-10-28 11:40:26 +00:00
ldlang.c ld/ 2012-03-25 06:45:16 +00:00
ldlang.h PR ld/10340 2012-03-08 05:29:33 +00:00
ldlex-wrapper.c ld/ 2010-02-10 19:48:16 +00:00
ldlex.h PR ld/10340 2012-03-08 05:29:33 +00:00
ldlex.l PR ld/10340 2012-03-08 05:29:33 +00:00
ldmain.c * ldlang.h (struct lang_input_statement_flags): New, extract from.. 2012-03-05 22:43:40 +00:00
ldmain.h * ldlang.h (struct lang_input_statement_flags): New, extract from.. 2012-03-05 22:43:40 +00:00
ldmisc.c ld: optimize vfinfo output slightly 2012-04-03 03:37:26 +00:00
ldmisc.h Applied patch series for LD plugin interface (six parts). 2010-10-14 01:31:33 +00:00
ldver.c Update copyright message year. 2012-01-17 00:07:04 +00:00
ldver.h update copyright dates 2009-09-02 07:25:43 +00:00
ldwrite.c * ldlang.h (struct lang_input_statement_flags): New, extract from.. 2012-03-05 22:43:40 +00:00
ldwrite.h update copyright dates 2009-09-02 07:25:43 +00:00
lexsup.c 2012-03-26 Tristan Gingold <gingold@adacore.com> 2012-03-26 13:05:16 +00:00
MAINTAINERS
Makefile.am bfd/ 2012-04-03 16:01:38 +00:00
Makefile.in bfd/ 2012-04-03 16:01:38 +00:00
mri.c include/ChangeLog 2011-07-11 15:03:09 +00:00
mri.h update copyright dates 2009-09-02 07:25:43 +00:00
NEWS 2011-11-02 Tristan Gingold <gingold@adacore.com> 2011-11-02 16:28:31 +00:00
pe-dll.c 2012-03-14 Kai Tietz <ktietz@redhat.com> 2012-03-14 19:00:03 +00:00
pe-dll.h 2010-04-05 Kai Tietz <kai.tietz@onevision.com> 2010-04-05 09:04:09 +00:00
pep-dll.c 2010-04-05 Kai Tietz <kai.tietz@onevision.com> 2010-04-05 09:04:09 +00:00
pep-dll.h 2010-04-05 Kai Tietz <kai.tietz@onevision.com> 2010-04-05 09:04:09 +00:00
plugin.c * ldlang.h (struct lang_input_statement_flags): New, extract from.. 2012-03-05 22:43:40 +00:00
plugin.h PR ld/13287 2011-10-20 09:50:59 +00:00
README
stamp-h.in
sysdep.h Provide win32-based dlapi replacements on windows platforms without dlfcn.h. 2010-10-15 16:21:41 +00:00
testplug.c PR ld/13329 2011-10-06 10:07:17 +00:00
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.