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In the ARC assembler, when a cpu type is specified using the .cpu directive, we rely on the bfd list of arc machine types in order to validate the cpu name passed in. This validation is only used in order to check that the cpu type passed to the .cpu directive matches any machine type selected earlier on the command line. Once that initial check has passed a full check is performed using the assemblers internal list of know cpu types. The problem is that the assembler knows about more cpu types than bfd, some cpu types known by the assembler are actually aliases for a base cpu type plus a specific set of assembler extensions. One such example is NPS400, though more could be added later. This commit removes the need for the assembler to use the bfd list of machine types for validation. Instead the error checking, to ensure that any value passed to a '.cpu' directive matches any earlier command line selection, is moved into the function arc_select_cpu. I have taken the opportunity to bundle the 4 separate static globals that describe the currently selected machine type into a single structure (called selected_cpu). gas/ChangeLog: * config/tc-arc.c (arc_target): Delete. (arc_target_name): Delete. (arc_features): Delete. (arc_mach_type): Delete. (mach_type_specified_p): Delete. (enum mach_selection_type): New enum. (mach_selection_mode): New static global. (selected_cpu): New static global. (arc_eflag): Rename to ... (arc_initial_eflag): ...this, and make const. (arc_select_cpu): Update comment, new parameter, check how previous machine type selection was made, and record this selection. Use selected_cpu instead of old globals. (arc_option): Remove use of arc_get_mach, instead use arc_select_cpu to validate machine type selection. Use selected_cpu over old globals. (allocate_tok): Use selected_cpu over old globals. (find_opcode_match): Likewise. (assemble_tokens): Likewise. (arc_cons_fix_new): Likewise. (arc_extinsn): Likewise. (arc_extcorereg): Likewise. (md_begin): Update default machine type selection, use selected_cpu over old globals. (md_parse_option): Update machine type selection option handling, use selected_cpu over old globals. * testsuite/gas/arc/nps400-0.s: Add .cpu directive. bfd/ChangeLog: * cpu-arc.c (arc_get_mach): Delete.
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.