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/* SPDX-License-Identifier: MIT */
#ifndef LIBURING_ARCH_AARCH64_LIB_H
#define LIBURING_ARCH_AARCH64_LIB_H
#include <elf.h>
#include <sys/auxv.h>
#include "../../syscall.h"
static inline long __get_page_size(void)
{
Elf64_Off buf[2];
long ret = 4096;
int fd;
fd = __sys_open("/proc/self/auxv", O_RDONLY, 0);
if (fd < 0)
return ret;
while (1) {
ssize_t x;
x = __sys_read(fd, buf, sizeof(buf));
if (x < (long) sizeof(buf))
break;
if (buf[0] == AT_PAGESZ) {
ret = buf[1];
break;
}
}
__sys_close(fd);
return ret;
}
static inline long get_page_size(void)
{
static long cache_val;
if (cache_val)
return cache_val;
cache_val = __get_page_size();
return cache_val;
}
#endif /* #ifndef LIBURING_ARCH_AARCH64_LIB_H */
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