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Many tdep files need to perform conversions between two floating-point types, usually when accessing FP registers. Most targets now use the convert_typed_floating helper routine to do so. However, a small number still use the old method of converting via a DOUBLEST. Since we want to get rid of DOUBLEST, these targets need to be moved to the new method as well. The main obstacle is that for convert_typed_floating we need an actual *type*, not just a floatformat. In arm-tdep.c, this is very straightforward, since there is already a type using the ARM extended floatformat. For sh-tdep.c and sh64-tdep.c, no such type already exists, so I've added one to the gdbarch_tdep struct as done on other targets. gdb/ChangeLog 2017-09-27 Ulrich Weigand <uweigand@de.ibm.com> * arm-tdep.c: (convert_from_extended): Remove. (convert_to_extended): Likewise. (arm_extract_return_value): Use convert_typed_floating. (arm_store_return_value): Likewise. * sh-tdep.h (struct gdbarch_tdep): Add sh_littlebyte_bigword_type. * sh-tdep.c: Do not include "floatformat.h". (sh_littlebyte_bigword_type): New function. (sh_register_convert_to_virtual): Use convert_typed_floating. (sh_register_convert_to_raw): Likewise. * sh64-tdep.c: (struct gdbarch_tdep): Add sh_littlebyte_bigword_type. (sh64_littlebyte_bigword_type): New function. (sh64_extract_return_value): Use convert_typed_floating. (sh64_register_convert_to_virtual): Likewise. (sh64_register_convert_to_raw): Likewise.
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.