binutils-gdb/ld
Maciej W. Rozycki 28d810f7ff LD/testsuite: Fix undefined symbol tests for MIPS and S+core targets
Fix commit 647d4de92e ("Test undefined symbols in shared libraries")
and remove "undefined symbols in shared lib (dyn reloc)" test failures
for MIPS and S+core targets.

This test assumes 3 dynamic relocation entries, however the respective
psABIs define an extra single dummy *_NONE relocation at the beginning
of the dynamic relocation table, which results in test output like the
following for MIPS:

Relocation section '.rel.dyn' at offset 0x33c contains 4 entries:
 Offset     Info    Type            Sym.Value  Sym. Name
00000000  00000000 R_MIPS_NONE
00010364  00000903 R_MIPS_REL32      00000000   undef_pfun
00010360  00000a03 R_MIPS_REL32      00000000   undef_data
00010368  00000b03 R_MIPS_REL32      00000000   undef_notype

and S+core:

Relocation section '.rel.dyn' at offset 0x274 contains 4 entries:
 Offset     Info    Type            Sym.Value  Sym. Name
00000000  00000000 R_SCORE_NONE
5ffe0464  00000e12 R_SCORE_REL32     00000000   undef_notype
5ffe045c  00000f12 R_SCORE_REL32     00000000   undef_data
5ffe0460  00001012 R_SCORE_REL32     00000000   undef_pfun

targets respectively, and also n64 MIPS targets pad relocation triplets
they use with extra *_NONE relocations, resulting in output like this:

Relocation section '.rel.dyn' at offset 0x4c0 contains 4 entries:
  Offset          Info           Type           Sym. Value    Sym. Name
000000000000  000000000000 R_MIPS_NONE
                    Type2: R_MIPS_NONE
                    Type3: R_MIPS_NONE
000000010508  000900001203 R_MIPS_REL32      0000000000000000 undef_pfun
                    Type2: R_MIPS_64
                    Type3: R_MIPS_NONE
000000010500  000a00001203 R_MIPS_REL32      0000000000000000 undef_data
                    Type2: R_MIPS_64
                    Type3: R_MIPS_NONE
000000010510  000b00001203 R_MIPS_REL32      0000000000000000 undef_notype
                    Type2: R_MIPS_64
                    Type3: R_MIPS_NONE

Expect the right number of *_NONE relocations then, and adjust the total
number of relocations expected accordingly.

	ld/
	* testsuite/ld-undefined/undefined.exp: Correct the dyn reloc
	test for MIPS and S+core targets.
2017-09-26 12:09:50 +01:00
..
emulparams [ARC] Add JLI support. 2017-07-19 09:56:55 +02:00
emultempl PowerPC64 --plt-align 2017-09-10 01:55:16 +09:30
po Add new Brazilian Portuguese translation for the ld subdirectory. 2017-08-17 12:13:28 +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 LD/testsuite: Fix undefined symbol tests for MIPS and S+core targets 2017-09-26 12:09:50 +01:00
.gitignore bfd/binutils/gas/gprof/ld/libiberty/opcodes: add .gitignore 2010-12-09 09:03:18 +00:00
ChangeLog LD/testsuite: Fix undefined symbol tests for MIPS and S+core targets 2017-09-26 12:09:50 +01:00
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 Remove trailing spaces in ld 2015-08-12 04:46:43 -07:00
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-2014 ChangeLog rotatation and copyright year update 2015-01-02 00:53:45 +10:30
ChangeLog-2015 binutils ChangeLog rotation 2016-01-01 22:59:17 +10:30
ChangeLog-2016 ChangeLog rotation 2017-01-02 13:55:05 +10:30
ChangeLog-9197 Remove trailing spaces in ld 2015-08-12 04:46:43 -07:00
ChangeLog-9899 Add copyright notices 2012-12-10 12:48:03 +00:00
MAINTAINERS Update year range in copyright notice of all files. 2017-01-02 14:08:56 +10:30
Makefile.am Apply ld/Makefile.in patch to the correct file 2017-07-07 10:35:31 +09:30
Makefile.in S/390: Add support for pgste marker 2017-06-23 08:00:46 +02:00
NEWS 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
README Update year range in copyright notice of all files. 2017-01-02 14:08:56 +10:30
TODO
aclocal.m4 Regenerate Makefile.in/aclocal.m4 automake 1.11.6 2016-04-15 16:20:55 -07:00
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 Run more ld tests when not native 2017-01-02 23:48:08 +10:30
configure.tgt MIPS/LD: Add OpenBSD/mips64 support 2017-09-19 15:20:41 +01:00
deffile.h Update year range in copyright notice of all files. 2017-01-02 14:08:56 +10:30
deffilep.y Update year range in copyright notice of all files. 2017-01-02 14:08:56 +10:30
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 Remove trailing white spaces in ld 2013-01-10 20:08:03 +00:00
fdl.texi etc/ChangeLog 2010-06-08 10:30:56 +00:00
gen-doc.texi S/390: Add support for pgste marker 2017-06-23 08:00:46 +02:00
genscrba.sh ld: 2008-01-11 09:11:18 +00:00
genscripts.sh Update year range in copyright notice of all files. 2017-01-02 14:08:56 +10:30
h8-doc.texi Update year range in copyright notice of all files. 2017-01-02 14:08:56 +10:30
ld.h Treat common symbol as undefined for --no-define-common 2017-08-06 08:19:04 -07:00
ld.texinfo PowerPC64 --plt-align 2017-09-10 01:55:16 +09:30
ldbuildid.c Update year range in copyright notice of all files. 2017-01-02 14:08:56 +10:30
ldbuildid.h Update year range in copyright notice of all files. 2017-01-02 14:08:56 +10:30
ldcref.c Update year range in copyright notice of all files. 2017-01-02 14:08:56 +10:30
ldctor.c Update year range in copyright notice of all files. 2017-01-02 14:08:56 +10:30
ldctor.h Update year range in copyright notice of all files. 2017-01-02 14:08:56 +10:30
ldemul.c Update year range in copyright notice of all files. 2017-01-02 14:08:56 +10:30
ldemul.h Update year range in copyright notice of all files. 2017-01-02 14:08:56 +10:30
ldexp.c Update year range in copyright notice of all files. 2017-01-02 14:08:56 +10:30
ldexp.h Update year range in copyright notice of all files. 2017-01-02 14:08:56 +10:30
ldfile.c Treat a prefix of "$SYSROOT" in the same way as "=" when parsing linker search paths. 2017-05-18 15:07:59 +01:00
ldfile.h Update year range in copyright notice of all files. 2017-01-02 14:08:56 +10:30
ldgram.y Treat common symbol as undefined for --no-define-common 2017-08-06 08:19:04 -07:00
ldint.texinfo Update year range in copyright notice of all files. 2017-01-02 14:08:56 +10:30
ldlang.c LTO rescan archives 2017-09-02 17:39:04 +09:30
ldlang.h LTO rescan archives 2017-09-02 17:39:04 +09:30
ldlex-wrapper.c Update year range in copyright notice of all files. 2017-01-02 14:08:56 +10:30
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: Allow section groups to be resolved as part of a relocatable link 2017-06-06 09:53:38 +01:00
ldmain.c LTO rescan archives 2017-09-02 17:39:04 +09:30
ldmain.h Update year range in copyright notice of all files. 2017-01-02 14:08:56 +10:30
ldmisc.c LD: vfinfo: Make clever formatters consistent WRT function name reporting 2017-02-15 13:41:51 +00:00
ldmisc.h Update year range in copyright notice of all files. 2017-01-02 14:08:56 +10:30
ldver.c Update year range in copyright notice of all files. 2017-01-02 14:08:56 +10:30
ldver.h Update year range in copyright notice of all files. 2017-01-02 14:08:56 +10:30
ldwrite.c Update year range in copyright notice of all files. 2017-01-02 14:08:56 +10:30
ldwrite.h Update year range in copyright notice of all files. 2017-01-02 14:08:56 +10:30
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 Update year range in copyright notice of all files. 2017-01-02 14:08:56 +10:30
mri.h Update year range in copyright notice of all files. 2017-01-02 14:08:56 +10:30
pe-dll.c Support pe-bigobj-x86-64 as an output format in 64-bit PE based linkers. 2017-05-09 14:42:43 +01:00
pe-dll.h PR 21274, ld segfaults linking PE DLL 2017-04-11 19:49:13 +09:30
pep-dll.c Update year range in copyright notice of all files. 2017-01-02 14:08:56 +10:30
pep-dll.h PR 21274, ld segfaults linking PE DLL 2017-04-11 19:49:13 +09:30
plugin.c Rename non_ir_ref to non_ir_ref_regular 2017-05-16 10:35:02 +09:30
plugin.h Update year range in copyright notice of all files. 2017-01-02 14:08:56 +10:30
stamp-h.in
sysdep.h Update year range in copyright notice of all files. 2017-01-02 14:08:56 +10:30
testplug.c Update year range in copyright notice of all files. 2017-01-02 14:08:56 +10:30
testplug2.c Update year range in copyright notice of all files. 2017-01-02 14:08:56 +10:30
testplug3.c Update year range in copyright notice of all files. 2017-01-02 14:08:56 +10:30
testplug4.c Update year range in copyright notice of all files. 2017-01-02 14:08:56 +10:30

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.