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Alan Modra df136d64fa PowerPC64 EH info for _notoc linkage stubs
This patch generates EH info for the new _notoc linkage stubs, to
support unwinding from asynchronous signal handlers.  Unwinding
through the __tls_get_addr_opt stub was already supported, but that
was just a single stub.  With multiple stubs the EH opcodes need to be
emitted and sized when iterating over stubs, so this is done when
emitting and sizing the stub code.  Emitting the CIEs and FDEs is done
when sizing the stubs, as we did before in order to have the linker
generated FDEs indexed in .eh_frame_hdr.  I moved the final tweaks to
FDEs from ppc64_elf_finish_dynamic_sections to ppc64_elf_build_stubs
simply because it's tidier to be done with them at that point.

bfd/
	* elf64-ppc.c (struct map_stub): Delete tls_get_addr_opt_bctrl.
	Add lr_restore, eh_size and eh_base.
	(eh_advance, eh_advance_size): New functions.
	(build_tls_get_addr_stub): Emit EH info for stub.
	(ppc_build_one_stub): Likewise for _notoc stubs.
	(ppc_size_one_stub): Size EH info for stub.
	(group_sections): Init new map_stub fields.
	(stub_eh_frame_size): Delete.
	(ppc64_elf_size_stubs): Size EH info for stubs.  Set up dummy EH
	program for stubs.
	(ppc64_elf_build_stubs): Reinit new map_stub fields.  Set FDE
	offset to stub section here..
	(ppc64_elf_finish_dynamic_sections): ..rather than here.
ld/
	* testsuite/ld-powerpc/notoc.s: Generate some cfi.
	* testsuite/ld-powerpc/notoc.d: Adjust.
	* testsuite/ld-powerpc/notoc.wf: New file.
	* testsuite/ld-powerpc/powerpc.exp: Run "ext" and "notoc" tests
	as run_ld_link_tests rather than run_dump_test.
2018-08-07 18:43:55 +09:30
bfd PowerPC64 EH info for _notoc linkage stubs 2018-08-07 18:43:55 +09:30
binutils Update binutils/MAINTAINERS for ARC. 2018-08-06 17:09:17 +03:00
config
contrib Update dg-extract-results.* from gcc 2018-08-06 16:05:16 +02:00
cpu
elfcpp
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gas Correct the parsing of derferred register addressing in the PDP11 assembler. 2018-08-07 08:34:08 +01:00
gdb Fix compilation failure in remote.c 2018-08-06 16:57:24 -04:00
gold Add --warn-drop-version option; by default, do not warn when discarding version info. 2018-08-06 14:10:13 -07:00
gprof
include [ARC] Add Tag_ARC_ATR_version. 2018-08-06 16:41:32 +03:00
intl
ld PowerPC64 EH info for _notoc linkage stubs 2018-08-07 18:43:55 +09:30
libdecnumber
libiberty
opcodes [ARC] Update handling AUX-registers. 2018-08-06 16:41:32 +03:00
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		   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.