diff options
Diffstat (limited to 'libc')
| -rw-r--r-- | libc/stdlib/Makefile | 4 | ||||
| -rw-r--r-- | libc/stdlib/posix_memalign.c | 42 |
2 files changed, 44 insertions, 2 deletions
diff --git a/libc/stdlib/Makefile b/libc/stdlib/Makefile index 5a3ffe631..40d03521f 100644 --- a/libc/stdlib/Makefile +++ b/libc/stdlib/Makefile @@ -1,7 +1,7 @@ # Makefile for uClibc # # Copyright (C) 2000 by Lineo, inc. -# Copyright (C) 2000,2001 Erik Andersen <andersen@uclibc.org> +# Copyright (C) 2000-2005 Erik Andersen <andersen@uclibc.org> # # This program is free software; you can redistribute it and/or modify it under # the terms of the GNU Library General Public License as published by the Free @@ -86,7 +86,7 @@ CSRC = abort.c getenv.c mkdtemp.c mktemp.c realpath.c mkstemp.c mkstemp64.c \ getpt.c ptsname.c grantpt.c unlockpt.c gcvt.c drand48-iter.c jrand48.c \ jrand48_r.c lrand48.c lrand48_r.c mrand48.c mrand48_r.c nrand48.c \ nrand48_r.c rand_r.c srand48.c srand48_r.c seed48.c seed48_r.c \ - valloc.c + valloc.c posix_memalign.c ifeq ($(UCLIBC_HAS_FLOATS),y) CSRC += drand48.c drand48_r.c erand48.c erand48_r.c endif diff --git a/libc/stdlib/posix_memalign.c b/libc/stdlib/posix_memalign.c new file mode 100644 index 000000000..115fb8999 --- /dev/null +++ b/libc/stdlib/posix_memalign.c @@ -0,0 +1,42 @@ +/* vi: set sw=4 ts=4: */ +/* posix_memalign for uClibc + * + * Copyright (C) 1996-2002, 2003, 2004, 2005 Free Software Foundation, Inc. + * Copyright (C) 2005 by Erik Andersen <andersen@uclibc.org> + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU Library General Public License as published by + * the Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. + * + * This program is distributed in the hope that it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU Library General Public License + * for more details. + * + * You should have received a copy of the GNU Library General Public License + * along with this program; if not, write to the Free Software Foundation, + * Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + * + */ + +#include <stdlib.h> +#include <malloc.h> +#include <sys/types.h> +#include <errno.h> +#include <sys/param.h> + +int posix_memalign(void **memptr, size_t alignment, size_t size) +{ + /* Make sure alignment is correct. */ + if (alignment % sizeof(void *) != 0) + /* Skip these checks because the memalign() func does them for us + || !powerof2(alignment / sizeof(void *)) != 0 + || alignment == 0 + */ + return EINVAL; + + *memptr = memalign(alignment, size); + + return (*memptr != NULL ? 0 : ENOMEM); +} |