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My PPC64_OPT_LOCALENTRY patch of June 1, git commit f378ab099d, and the later gold change, git commit 7ee7ff7015, added an insn in __glink_PLTresolve which needs a corresponding adjustment in the eh_frame info for asynchronous exceptions to unwind correctly. It would have been OK for both ABIs to use +5 for the advance before restore of LR, since we can put the DW_CFA_restore_extended on any insn after the actual restore and before the r12/r0 copy is clobbered, but it's slightly better to delay as much as possible. There are then more addresses where fewer CFA program insns are executed. bfd/ * elf64-ppc.c (ppc64_elf_size_stubs): Correct advance to restore of LR. gold/ * powerpc.cc (glink_eh_frame_fde_64v2): Correct advance to restore of LR. (glink_eh_frame_fde_64v1): Advance to restore of LR at latest possible insn.
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.