Alan Modra 63c1f59d66 readonly_dynrelocs
In early October, HJ Lu added support for a number of targets to "Dump
dynamic relocation in read-only section with minfo".  This extends
that support to more targets, displays the symbol involved, and splits
the existing function that sets TEXTREL into a "readonly_dynrelocs"
and "maybe_set_textrel" function.  I'll need "readonly_dynrelocs" if I
ever get around to fixing "pr22374 function pointer initialization"
fails.

am33_2.0, arc, bfin, hppa64, mn10300, and nios2 fail to mark a binary
needing text relocations with DT_TEXTREL.  That's not good.  xtensa also
fails to do so but complains about "dangerous relocation: dynamic
relocation in read-only section" so I reckon that is fine and have
marked the test as an xfail.  The other targets need maintainer
attention.

Curiously, the map file dump wasn't added for x86, so the map test
currently fail on x86.  It also fails on alpha, am33_2.0, arc, bfin,
hppa64, ia64, m68k, mips, mn10300, nios2, score and vax.  cris
complains with "tmpdir/textrel.o, section .rodata: relocation
R_CRIS_32 should not be used in a shared object; recompile with -fPIC"
so I've marked it as an xfail.

bfd/
	* elf32-hppa.c (maybe_set_textrel): Print symbol for map file output.
	* elf32-ppc.c (maybe_set_textrel): Likewise.
	* elf64-ppc.c (maybe_set_textrel): Likewise.
	* elf32-arm.c (readonly_dynrelocs): New function.
	(maybe_set_textrel): New function, replacing..
	(elf32_arm_readonly_dynrelocs): ..this.
	* elf32-lm32.c (readonly_dynrelocs): New function.
	(maybe_set_textrel): New function, replacing old version of..
	(readonly_dynrelocs): ..this.
	* elf32-m32r.c (readonly_dynrelocs): New function.
	(maybe_set_textrel): New function, replacing old version of..
	(readonly_dynrelocs): ..this.
	* elf32-metag.c (readonly_dynrelocs): New function.
	(maybe_set_textrel): New function, replacing old version of..
	(readonly_dynrelocs): ..this.
	* elf32-nds32.c: Delete unnecessary forward declarations.
	(readonly_dynrelocs): New function.
	(maybe_set_textrel): New function, replacing old version of..
	(readonly_dynrelocs): ..this.
	* elf32-or1k.c (readonly_dynrelocs): New function.
	(maybe_set_textrel): New function, replacing old version of..
	(readonly_dynrelocs): ..this.
	* elf32-s390.c (readonly_dynrelocs): New function.
	(maybe_set_textrel): New function, replacing old version of..
	(readonly_dynrelocs): ..this.
	* elf32-sh.c (readonly_dynrelocs): New function.
	(maybe_set_textrel): New function, replacing old version of..
	(readonly_dynrelocs): ..this.
	* elf32-tic6x.c (readonly_dynrelocs): New function.
	(maybe_set_textrel): New function, replacing..
	(elf32_tic6x_readonly_dynrelocs): ..this.
	* elf32-tilepro.c (readonly_dynrelocs): New function.
	(maybe_set_textrel): New function, replacing old version of..
	(readonly_dynrelocs): ..this.
	* elf64-s390.c (readonly_dynrelocs): New function.
	(maybe_set_textrel): New function, replacing old version of..
	(readonly_dynrelocs): ..this.
	* elfnn-aarch64.c (readonly_dynrelocs): New function.
	(maybe_set_textrel): New function, replacing..
	(aarch64_readonly_readonly_dynrelocs): ..this.
	* elfnn-riscv.c (readonly_dynrelocs): New function.
	(maybe_set_textrel): New function, replacing old version of..
	(readonly_dynrelocs): ..this.
	* elfxx-sparc.c (readonly_dynrelocs): New function.
	(maybe_set_textrel): New function, replacing old version of..
	(readonly_dynrelocs): ..this.
	* elfxx-tilegx.c (readonly_dynrelocs): New function.
	(maybe_set_textrel): New function, replacing old version of..
	(readonly_dynrelocs): ..this.
ld/
	* testsuite/ld-elf/shared.exp: Run new textrel tests.
	* testsuite/ld-elf/textrel.map: New file.
	* testsuite/ld-elf/textrel.rd: New file.
	* testsuite/ld-elf/textrel.s: New file.
	* testsuite/ld-elf/textrel.warn: New file.
2017-12-01 17:23:56 +10:30
2017-12-01 17:23:56 +10:30
2017-11-30 11:47:38 +01:00
2017-11-30 18:46:45 -05:00
2017-12-01 17:23:56 +10:30
2017-11-30 11:48:13 +01:00

		   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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