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binutils-gdb/ld
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Maciej W. Rozycki 7575e6a752 MIPS/LD/testsuite: mips-elf-flags: Add MIPS ABI Flags handling 
Complement commit 351cdf24d2 ("[MIPS] Implement O32 FPXX, FP64 and
FP64A ABI extensions") and add optional MIPS ABI Flags handling to
`good_combination' in the `mips-elf-flags.exp' test script.  This lets
callers of this procedure request to examine MIPS ABI Flags in addition
to the `e_flags' member of the ELF file header so as to verify that
flags are merged correctly by LD.  The presence of further arguments
triggers this verification, in which case `readelf' is called with the
`-A' option additionally specified and the ISA member, the ISA Extension
member and the ASEs member will be examined as per the arguments.

Unlike with `readelf -h' output consider a failure to retrieve the
member requested a test case failure rather than an unresolved result.
This is because unlike with the `e_flags' member of the ELF file header
which is always there in any valid ELF file the MIPS ABI Flags structure
is optional in LD output and the absence of this structure when expected
is surely a bug in LD.

	ld/
	* testsuite/ld-mips-elf/mips-elf-flags.exp (good_combination):
	Add an `args' final argument and examination code for `readelf
	-A' output.  Update procedure description accordingly.
2017-06-27 02:58:27 +01:00
..
emulparams S/390: Add support for pgste marker 2017-06-23 08:00:46 +02:00
emultempl Don't attach linker created section to --just-syms bfd 2017-06-26 09:10:22 +09:30
po Add Serbian translation for the LD directory. 2017-01-27 11:27:50 +00:00
scripttempl Move location of .jumptables section and add .hightext section to AVR linker script. 2017-06-14 12:23:39 +01:00
testsuite MIPS/LD/testsuite: mips-elf-flags: Add MIPS ABI Flags handling 2017-06-27 02:58:27 +01:00
.gitignore
aclocal.m4
ChangeLog MIPS/LD/testsuite: mips-elf-flags: Add MIPS ABI Flags handling 2017-06-27 02:58:27 +01:00
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ChangeLog-0203
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ChangeLog-2015
ChangeLog-2016 ChangeLog rotation 2017-01-02 13:55:05 +10:30
ChangeLog-9197
ChangeLog-9899
config.in Introduce --enable-new-dtags configure option. 2017-06-05 09:58:05 +09:30
configure Introduce --enable-new-dtags configure option. 2017-06-05 09:58:05 +09:30
configure.ac Introduce --enable-new-dtags configure option. 2017-06-05 09:58:05 +09:30
configure.host Run more ld tests when not native 2017-01-02 23:48:08 +10:30
configure.tgt Accept more epiphany targets 2017-06-14 06:59:37 +02:00
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
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 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 ld: Fix spelling mistake in comment. 2017-06-06 10:15:27 +01:00
ld.texinfo S/390: Add support for pgste marker 2017-06-23 08:00:46 +02:00
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 ld: Allow section groups to be resolved as part of a relocatable link 2017-06-06 09:53:38 +01:00
ldint.texinfo Update year range in copyright notice of all files. 2017-01-02 14:08:56 +10:30
ldlang.c Rewrite __start and __stop symbol handling 2017-06-16 23:38:28 +09:30
ldlang.h Update year range in copyright notice of all files. 2017-01-02 14:08:56 +10:30
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 ld: Allow section groups to be resolved as part of a relocatable link 2017-06-06 09:53:38 +01:00
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 Correct "ld --help" to display "-z stack-size=SIZE" 2017-06-15 12:30:53 -07:00
MAINTAINERS Update year range in copyright notice of all files. 2017-01-02 14:08:56 +10:30
Makefile.am x86: Support Intel IBT with IBT property and IBT-enable PLT 2017-06-22 05:44:53 -07:00
Makefile.in S/390: Add support for pgste marker 2017-06-23 08:00:46 +02:00
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
NEWS x86: Support Intel Shadow Stack with SHSTK property 2017-06-22 05:50:31 -07:00
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
README 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
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
testplug.c Update year range in copyright notice of all files. 2017-01-02 14:08:56 +10:30
TODO

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.