C11 aligned_alloc() implementation
aligned_alloc() is implemented in terms of posix_memalign() which is only declared in <stdlib.h> but not defined in Newlib in general. At least Linux and RTEMS implement this function. newlib/ChangeLog 2015-10-14 Sebastian Huber <sebastian.huber@embedded-brains.de> * libc/stdlib/Makefile.am (GENERAL_SOURCES): Add alloc_aligned.c.c. * libc/stdlib/Makefile.in: Regenerate. * libc/stdlib/aligned_alloc.c: New.
This commit is contained in:
Sebastian Huber
Corinna Vinschen
parent
da60762bfe
commit
f86afe5a3a
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@ -1,3 +1,9 @@
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2015-10-14 Sebastian Huber <sebastian.huber@embedded-brains.de>
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* libc/stdlib/Makefile.am (GENERAL_SOURCES): Add alloc_aligned.c.c.
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* libc/stdlib/Makefile.in: Regenerate.
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* libc/stdlib/aligned_alloc.c: New.
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2015-10-14 Sebastian Huber <sebastian.huber@embedded-brains.de>
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* libc/include/stdlib.h (alloc_aligned): Declare.
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@ -13,6 +13,7 @@ GENERAL_SOURCES = \
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_Exit.c \
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abort.c \
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abs.c \
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aligned_alloc.c \
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assert.c \
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atexit.c \
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atof.c \
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@ -85,16 +85,17 @@ am__objects_2 = lib_a-__adjust.$(OBJEXT) lib_a-__atexit.$(OBJEXT) \
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lib_a-__call_atexit.$(OBJEXT) lib_a-__exp10.$(OBJEXT) \
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lib_a-__ten_mu.$(OBJEXT) lib_a-_Exit.$(OBJEXT) \
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lib_a-abort.$(OBJEXT) lib_a-abs.$(OBJEXT) \
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lib_a-assert.$(OBJEXT) lib_a-atexit.$(OBJEXT) \
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lib_a-atof.$(OBJEXT) lib_a-atoff.$(OBJEXT) \
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lib_a-atoi.$(OBJEXT) lib_a-atol.$(OBJEXT) \
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lib_a-calloc.$(OBJEXT) lib_a-div.$(OBJEXT) \
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lib_a-dtoa.$(OBJEXT) lib_a-dtoastub.$(OBJEXT) \
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lib_a-environ.$(OBJEXT) lib_a-envlock.$(OBJEXT) \
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lib_a-eprintf.$(OBJEXT) lib_a-exit.$(OBJEXT) \
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lib_a-gdtoa-gethex.$(OBJEXT) lib_a-gdtoa-hexnan.$(OBJEXT) \
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lib_a-getenv.$(OBJEXT) lib_a-getenv_r.$(OBJEXT) \
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lib_a-itoa.$(OBJEXT) lib_a-labs.$(OBJEXT) lib_a-ldiv.$(OBJEXT) \
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lib_a-aligned_alloc.$(OBJEXT) lib_a-assert.$(OBJEXT) \
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lib_a-atexit.$(OBJEXT) lib_a-atof.$(OBJEXT) \
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lib_a-atoff.$(OBJEXT) lib_a-atoi.$(OBJEXT) \
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lib_a-atol.$(OBJEXT) lib_a-calloc.$(OBJEXT) \
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lib_a-div.$(OBJEXT) lib_a-dtoa.$(OBJEXT) \
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lib_a-dtoastub.$(OBJEXT) lib_a-environ.$(OBJEXT) \
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lib_a-envlock.$(OBJEXT) lib_a-eprintf.$(OBJEXT) \
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lib_a-exit.$(OBJEXT) lib_a-gdtoa-gethex.$(OBJEXT) \
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lib_a-gdtoa-hexnan.$(OBJEXT) lib_a-getenv.$(OBJEXT) \
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lib_a-getenv_r.$(OBJEXT) lib_a-itoa.$(OBJEXT) \
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lib_a-labs.$(OBJEXT) lib_a-ldiv.$(OBJEXT) \
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lib_a-ldtoa.$(OBJEXT) lib_a-malloc.$(OBJEXT) \
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lib_a-mblen.$(OBJEXT) lib_a-mblen_r.$(OBJEXT) \
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lib_a-mbstowcs.$(OBJEXT) lib_a-mbstowcs_r.$(OBJEXT) \
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@ -149,11 +150,11 @@ lib_a_OBJECTS = $(am_lib_a_OBJECTS)
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LTLIBRARIES = $(noinst_LTLIBRARIES)
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@HAVE_LONG_DOUBLE_TRUE@am__objects_8 = strtold.lo wcstold.lo
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am__objects_9 = __adjust.lo __atexit.lo __call_atexit.lo __exp10.lo \
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__ten_mu.lo _Exit.lo abort.lo abs.lo assert.lo atexit.lo \
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atof.lo atoff.lo atoi.lo atol.lo calloc.lo div.lo dtoa.lo \
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dtoastub.lo environ.lo envlock.lo eprintf.lo exit.lo \
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gdtoa-gethex.lo gdtoa-hexnan.lo getenv.lo getenv_r.lo itoa.lo \
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labs.lo ldiv.lo ldtoa.lo malloc.lo mblen.lo mblen_r.lo \
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__ten_mu.lo _Exit.lo abort.lo abs.lo aligned_alloc.lo \
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assert.lo atexit.lo atof.lo atoff.lo atoi.lo atol.lo calloc.lo \
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div.lo dtoa.lo dtoastub.lo environ.lo envlock.lo eprintf.lo \
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exit.lo gdtoa-gethex.lo gdtoa-hexnan.lo getenv.lo getenv_r.lo \
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itoa.lo labs.lo ldiv.lo ldtoa.lo malloc.lo mblen.lo mblen_r.lo \
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mbstowcs.lo mbstowcs_r.lo mbtowc.lo mbtowc_r.lo mlock.lo \
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mprec.lo mstats.lo quick_exit.lo rand.lo rand_r.lo realloc.lo \
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reallocf.lo sb_charsets.lo strtod.lo strtol.lo strtoul.lo \
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@ -353,9 +354,9 @@ top_srcdir = @top_srcdir@
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AUTOMAKE_OPTIONS = cygnus
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INCLUDES = $(NEWLIB_CFLAGS) $(CROSS_CFLAGS) $(TARGET_CFLAGS)
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GENERAL_SOURCES = __adjust.c __atexit.c __call_atexit.c __exp10.c \
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__ten_mu.c _Exit.c abort.c abs.c assert.c atexit.c atof.c \
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atoff.c atoi.c atol.c calloc.c div.c dtoa.c dtoastub.c \
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environ.c envlock.c eprintf.c exit.c gdtoa-gethex.c \
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__ten_mu.c _Exit.c abort.c abs.c aligned_alloc.c assert.c \
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atexit.c atof.c atoff.c atoi.c atol.c calloc.c div.c dtoa.c \
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dtoastub.c environ.c envlock.c eprintf.c exit.c gdtoa-gethex.c \
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gdtoa-hexnan.c getenv.c getenv_r.c itoa.c labs.c ldiv.c \
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ldtoa.c malloc.c mblen.c mblen_r.c mbstowcs.c mbstowcs_r.c \
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mbtowc.c mbtowc_r.c mlock.c mprec.c mstats.c quick_exit.c \
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@ -648,6 +649,12 @@ lib_a-abs.o: abs.c
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lib_a-abs.obj: abs.c
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$(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(lib_a_CFLAGS) $(CFLAGS) -c -o lib_a-abs.obj `if test -f 'abs.c'; then $(CYGPATH_W) 'abs.c'; else $(CYGPATH_W) '$(srcdir)/abs.c'; fi`
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lib_a-aligned_alloc.o: aligned_alloc.c
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$(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(lib_a_CFLAGS) $(CFLAGS) -c -o lib_a-aligned_alloc.o `test -f 'aligned_alloc.c' || echo '$(srcdir)/'`aligned_alloc.c
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lib_a-aligned_alloc.obj: aligned_alloc.c
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$(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(lib_a_CFLAGS) $(CFLAGS) -c -o lib_a-aligned_alloc.obj `if test -f 'aligned_alloc.c'; then $(CYGPATH_W) 'aligned_alloc.c'; else $(CYGPATH_W) '$(srcdir)/aligned_alloc.c'; fi`
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lib_a-assert.o: assert.c
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$(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(lib_a_CFLAGS) $(CFLAGS) -c -o lib_a-assert.o `test -f 'assert.c' || echo '$(srcdir)/'`assert.c
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@ -0,0 +1,38 @@
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/*-
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* Copyright (c) 2015 embedded brains GmbH
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include <stdlib.h>
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void *
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aligned_alloc(size_t alignment, size_t size)
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{
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void *p;
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int error;
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error = posix_memalign(&p, alignment, size);
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return (error == 0 ? p : NULL);
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}
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