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Since LTO plugin may generate more than one ltrans.o file from one input IR object as LTO wrapper ignores -flto-partition=none: lto-wrapper.c:608: 604 /* Drop arguments that we want to take from the link line. */ 605 case OPT_flto_: 606 case OPT_flto: 607 case OPT_flto_partition_: 608 continue; the LTO wrapper approach is not only slow but also unreliable. Since the LTO plugin API has been extended to add LDPT_ADD_SYMBOLS_V2 with symbol type and section kind, we can use LDPT_ADD_SYMBOLS_V2 to get symbol type, instead of invoking the LTO wrapper. PR binutils/25640 * plugin.c (plugin_list_entry): Add has_symbol_type. (add_symbols_v2): New function. (bfd_plugin_open_input): Don't invoke LTO wrapper if LTO plugin provides symbol type. (try_load_plugin): Add LDPT_ADD_SYMBOLS_V2. (bfd_plugin_canonicalize_symtab): Use LTO plugin symbol type if available.
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.