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a4b6fadd50
Don't emit long branch or plt branch stubs to save/restore functions. Copy them instead. The problem is that plt branch stubs currently trash r12, one of the parameters to some of the save/restore functions, and there is no free register available to use instead of r12. 6f20ed8a is prerequisite for this patch. PR 18878 * elf64-ppc.c (ARRAY_SIZE): Define. Use throughout. (enum ppc_stub_type): Add ppc_stub_save_res. (struct map_stub): Add "next" and "needs_save_res". (struct ppc_link_hash_entry): Add "save_res" flag. (struct ppc_link_hash_table): Add "group". (sfpr_define): Add stub_sec param. Define symbol in stub_sec if stub_sec is non-null. Set "save_res". (save_res_funcs): Make file scope, rename from funcs. Adjust uses. (ppc64_elf_adjust_dynamic_symbol): Prohibit plt call to save_res syms. (ppc_build_one_stub): Handle ppc_stub_save_res. (ppc_size_one_stub): Set stub type to ppc_size_one_stub on finding stub for linker defined save_res sym. (group_sections): Init new fields of struct map_stub. (ppc64_elf_size_stubs): Reserve space for save/restore func copy. (ppc64_elf_build_stubs): Copy save/restore funcs to groups. Emit alias syms too. (ppc64_elf_relocate_section): Set destination for ppc_stub_save_res.
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.