cosmopolitan/libc/mem/posix_memalign.S

38 lines
2.4 KiB
ArmAsm

/*-*- mode:unix-assembly; indent-tabs-mode:t; tab-width:8; coding:utf-8 -*-│
vi: set et ft=asm ts=8 tw=8 fenc=utf-8 :vi
Copyright 2020 Justine Alexandra Roberts Tunney
This program is free software; you can redistribute it and/or modify │
it under the terms of the GNU General Public License as published by
the Free Software Foundation; version 2 of the License. │
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
General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software │
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
02110-1301 USA
*/
#include "libc/macros.h"
.source __FILE__
/ Allocates aligned memory the POSIX way.
/
/ Allocates a chunk of n bytes, aligned in accord with the alignment
/ argument. Differs from memalign only in that it (1) assigns the
/ allocated memory to *pp rather than returning it, (2) fails and
/ returns EINVAL if the alignment is not a power of two (3) fails and
/ returns ENOMEM if memory cannot be allocated.
/
/ @param rdi is void **pp
/ @param rsi is size_t align
/ @param rdx is size_t size
/ @return eax
posix_memalign:
jmp *hook$posix_memalign(%rip)
.endfn posix_memalign,globl