H.J. Lu 34a87bb07a ld: Hide symbols defined by HIDDEN/PROVIDE_HIDDEN
There should be no difference in output for symbols defined by HIDDEN
or PROVIDE_HIDDEN assignments whether they are explicitly marked as
hidden or not.  This patch adds a new BFD function, bfd_link_hide_symbol,
to hide symbols defined by HIDDEN and PROVIDE_HIDDEN assignments.

bfd

	PR ld/23201
	* aout-target.h (MY_bfd_link_hide_symbol): New.
	* aout-tic30.c (MY_bfd_link_hide_symbol): Likewise.
	* binary.c (binary_bfd_link_hide_symbol): Likewise.
	* coff-alpha.c (_bfd_ecoff_bfd_link_hide_symbol): Likewise.
	* coff-mips.c (_bfd_ecoff_bfd_link_hide_symbol): Likewise.
	* coff-rs6000.c (_bfd_xcoff_bfd_link_hide_symbol): Likewise.
	* coffcode.h (coff_bfd_link_hide_symbol): Likewise.
	* elf-bfd.h (_bfd_elf_link_hide_symbol): Likewise.
	* elfxx-target.h (bfd_elfNN_bfd_link_hide_symbol): Likewise.
	* i386msdos.c (msdos_bfd_link_hide_symbol): Likewise.
	* ihex.c (ihex_bfd_link_hide_symbol): Likewise.
	* libbfd-in.h (_bfd_nolink_bfd_link_hide_symbol): Likewise.
	* linker.c (_bfd_generic_link_hide_symbol): Likewise.
	(bfd_link_hide_symbol): Likewise.
	* mach-o-target.c (bfd_mach_o_bfd_link_hide_symbol): Likewise.
	* mmo.c (mmo_bfd_link_hide_symbol): Likewise.
	* pef.c (bfd_pef_bfd_link_hide_symbol): Likewise.
	* plugin.c (bfd_plugin_bfd_link_hide_symbol): Likewise.
	* ppcboot.c (ppcboot_bfd_link_hide_symbol): Likewise.
	* som.c (som_bfd_link_hide_symbol): Likewise.
	* srec.c (srec_bfd_link_hide_symbol): Likewise.
	* tekhex.c (tekhex_bfd_link_hide_symbol): Likewise.
	* vms-alpha.c (vms_bfd_link_hide_symbol): Likewise.
	(alpha_vms_bfd_link_hide_symbol): Likewise.
	* xsym.c (bfd_sym_bfd_link_hide_symbol): Likewise.
	* coff64-rs6000.c (rs6000_xcoff64_vec): Add
	_bfd_generic_link_hide_symbol.
	(rs6000_xcoff64_aix_vec): Likewise.
	* elflink.c (bfd_elf_record_link_assignment): Don't make forced
	local symbol dynamic.
	(_bfd_elf_link_hide_symbol): New function.
	* elfxx-x86.c (_bfd_x86_elf_link_symbol_references_local): Don't
	check root.ldscript_def.
	* targets.c (bfd_target): Add _bfd_link_hide_symbol.
	(BFD_JUMP_TABLE_LINK): Add NAME##_bfd_link_hide_symbol.
	* bfd-in2.h: Regenerated.
	* libbfd.h: Likewise.

ld/

	PR ld/23201
	* ldexp.c (exp_fold_tree_1): Call bfd_link_hide_symbol to hide
	a symbol.
	* testsuite/ld-elf/provide-hidden-dynabs.nd: Removed.
	* testsuite/ld-elf/provide-hidden-dynsec.nd: Likewise.
	* testsuite/ld-elf/provide-hidden.exp: Replace
	provide-hidden-dynsec.nd with provide-hidden-sec.nd and
	provide-hidden-dyn.nd.  Replace provide-hidden-dynabs.nd with
	provide-hidden-abs.nd and provide-hidden-dyn.nd.
	* testsuite/ld-i386/pr23189.d: Expect no dynamic relocation.
	* testsuite/ld-x86-64/pr23189.d: Likewise.
2018-05-21 20:39:30 -07:00
2018-05-18 14:03:18 -07:00
2018-04-05 15:22:13 -07:00
2018-04-09 17:25:20 +09:30

		   README for GNU development tools

This directory contains various GNU compilers, assemblers, linkers, 
debuggers, etc., plus their support routines, definitions, and documentation.

If you are receiving this as part of a GDB release, see the file gdb/README.
If with a binutils release, see binutils/README;  if with a libg++ release,
see libg++/README, etc.  That'll give you info about this
package -- supported targets, how to use it, how to report bugs, etc.

It is now possible to automatically configure and build a variety of
tools with one command.  To build all of the tools contained herein,
run the ``configure'' script here, e.g.:

	./configure 
	make

To install them (by default in /usr/local/bin, /usr/local/lib, etc),
then do:
	make install

(If the configure script can't determine your type of computer, give it
the name as an argument, for instance ``./configure sun4''.  You can
use the script ``config.sub'' to test whether a name is recognized; if
it is, config.sub translates it to a triplet specifying CPU, vendor,
and OS.)

If you have more than one compiler on your system, it is often best to
explicitly set CC in the environment before running configure, and to
also set CC when running make.  For example (assuming sh/bash/ksh):

	CC=gcc ./configure
	make

A similar example using csh:

	setenv CC gcc
	./configure
	make

Much of the code and documentation enclosed is copyright by
the Free Software Foundation, Inc.  See the file COPYING or
COPYING.LIB in the various directories, for a description of the
GNU General Public License terms under which you can copy the files.

REPORTING BUGS: Again, see gdb/README, binutils/README, etc., for info
on where and how to report problems.
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