Binutils with MCST patches
50eff16b85
One of the few still remaining uses of DOUBLEST in GDB is the Ada front-end code that handles scaling of Ada fixed-point types. The target format for those types is some integer format; to convert those values to standard floating-point representation, that integer needs to be multiplied by a rational scale factor, given as a pair of numerator and denominator. To avoid having to deal with long integer arithmetic, the current Ada front-end code currently performs those scaling operations in host DOUBLEST arithmetic. To eliminate this use of DOUBLEST, this patch changes the front-end to instead perform those operations in the *target* floating-point format (chosing to use the target "long double"). The implementation is mostly straight-forward, using value_cast and value_binop to perform the target operations. Scanning in the scale numerator and denominator is now done into a host "long long" instead of a DOUBLEST, which should be large enough to hold all possible values. (Otherwise, this can be replaced by target-format target_float_from_string operations as well.) Printing fixed-point types and values should be completely unchanges, using target_float_to_string with the same format strings as current code. gdb/ChangeLog: 2017-11-06 Ulrich Weigand <uweigand@de.ibm.com> * ada-lang.c (cast_to_fixed): Reimplement in target arithmetic. (cast_from_fixed): Likewise. (ada_scaling_type): New function. (ada_delta): Return value instead of DOUBLEST. Perform target arithmetic instead of host arithmetic. (scaling_factor): Rename to ... (ada_scaling_factor) ... this. Make non-static. Return value instead of DOUBLEST. Perform target arithmetic instead of host arithmetic. (ada_fixed_to_float): Remove. (ada_float_to_fixed): Remove. * ada-lang.h (ada_fixed_to_float): Remove. (ada_float_to_fixed): Remove. (ada_delta): Return value instead of DOUBLEST. (ada_scaling_factor): Add prototype. * ada-typeprint.c: Include "target-float.h". (print_fixed_point_type): Perform target arithmetic instead of host arithmetic. * ada-valprint.c: Include "target-float.h". (ada_val_print_num): Perform target arithmetic instead of host arithmetic for fixed-point types. |
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bfd | ||
binutils | ||
config | ||
cpu | ||
elfcpp | ||
etc | ||
gas | ||
gdb | ||
gold | ||
gprof | ||
include | ||
intl | ||
ld | ||
libdecnumber | ||
libiberty | ||
opcodes | ||
readline | ||
sim | ||
texinfo | ||
zlib | ||
.cvsignore | ||
.gitattributes | ||
.gitignore | ||
ChangeLog | ||
compile | ||
config-ml.in | ||
config.guess | ||
config.rpath | ||
config.sub | ||
configure | ||
configure.ac | ||
COPYING | ||
COPYING3 | ||
COPYING3.LIB | ||
COPYING.LIB | ||
COPYING.LIBGLOSS | ||
COPYING.NEWLIB | ||
depcomp | ||
djunpack.bat | ||
install-sh | ||
libtool.m4 | ||
lt~obsolete.m4 | ||
ltgcc.m4 | ||
ltmain.sh | ||
ltoptions.m4 | ||
ltsugar.m4 | ||
ltversion.m4 | ||
MAINTAINERS | ||
Makefile.def | ||
Makefile.in | ||
Makefile.tpl | ||
makefile.vms | ||
missing | ||
mkdep | ||
mkinstalldirs | ||
move-if-change | ||
README | ||
README-maintainer-mode | ||
setup.com | ||
src-release.sh | ||
symlink-tree | ||
ylwrap |
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.