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The original implementation had multiple issues: - Only worked when posix_memalign was available (Linux, RTEMS). - Violated C11 link namespace rules by calling posix_memalign. - Failed to set errno on error. These can be fixed by essentially using the same implementation for aligned_alloc as for memalign, i.e. simply calling _memalign_r (which is always available and a "more reserved name" although technically still not in the reserved link namespace, at least code written in c cannot define a colliding symbol, newlib has plenty such namespace issues so this is fine). It is not clear what the right policy is when MALLOC_PROVIDED is set, currently that does not cover aligned_alloc so it is kept that way. Tested on aarch64-none-elf
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.