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The gdtoa implementation uses the type long, defined as Long, in lots of code. For historical reason newlib defines Long as int32_t instead. This works fine, as long as floating point exceptions are not enabled. The conversion to 32 bit int can lead to a FE_INVALID situation. Example: const char *str = "121645100408832000.0"; char *ptr; feenableexcept (FE_INVALID); strtod (str, &ptr); This leads to the following situation in strtod double aadj; Long L; [...] L = (Long)aadj; For instance, on x86_64 the code here is cvttsd2si %xmm0,%eax At this point, aadj is 2529648000.0 in our example. The conversion to 32 bit %eax results in a negative int value, thus the conversion is invalid. With feenableexcept (FE_INVALID), a SIGFPE is raised. Fix this by always using 64 bit ints here if double is not a 32 bit type to avoid this type of FP exceptions. Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
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.