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On AlmaLinux 9.2 powerpc64le I run into: ... (gdb) PASS: gdb.ada/array_return.exp: continuing to Create_Small_Float_Vector finish^M Run till exit from #0 pck.create_small_float_vector () at pck.adb:30^M 0x00000000100022d4 in p () at p.adb:25^M 25 Vector := Create_Small_Float_Vector;^M Value returned is $3 = (2.80259693e-45, 2.80259693e-45)^M (gdb) FAIL: gdb.ada/array_return.exp: value printed by finish of Create_Small_Float_Vector ... while this is expected: ... Value returned is $3 = (4.25, 4.25)^M ... The problem is here in ppc64_aggregate_candidate: ... if (!get_array_bounds (type, &low_bound, &high_bound)) return -1; count *= high_bound - low_bound ... The array type (containing 2 elements) is: ... type Small_Float_Vector is array (1 .. 2) of Float; ... so we have: ... (gdb) p low_bound $1 = 1 (gdb) p high_bound $2 = 2 ... but we calculate the number of elements in the array using "high_bound - low_bound", which is 1. Consequently, gdb fails to correctly classify the type as a ELFv2 homogeneous aggregate. Fix this by calculating the number of elements in the array by using "high_bound - low_bound + 1" instead. Furthermore, high_bound can (in general, though perhaps not here) also be smaller than low_bound, so to be safe take that into account as well: ... LONGEST nr_array_elements = (low_bound > high_bound ? 0 : (high_bound - low_bound + 1)); count *= nr_array_elements; ... Tested on powerpc64le-linux. Approved-By: Ulrich Weigand <uweigand@de.ibm.com> PR tdep/31015 Bug: https://sourceware.org/bugzilla/show_bug.cgi?id=31015
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.