308 lines
6.3 KiB
C
308 lines
6.3 KiB
C
#ifndef FIO_OS_ANDROID_H
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#define FIO_OS_ANDROID_H
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#define FIO_OS os_android
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#include <sys/ioctl.h>
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#include <sys/mman.h>
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#include <sys/uio.h>
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#include <sys/syscall.h>
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#include <sys/vfs.h>
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#include <unistd.h>
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#include <fcntl.h>
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#include <errno.h>
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#include <sched.h>
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#include <linux/unistd.h>
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#include <linux/major.h>
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#include <asm/byteorder.h>
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#include "./os-linux-syscall.h"
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#include "binject.h"
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#include "../file.h"
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#ifndef __has_builtin // Optional of course.
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#define __has_builtin(x) 0 // Compatibility with non-clang compilers.
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#endif
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#define FIO_HAVE_DISK_UTIL
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#define FIO_HAVE_IOSCHED_SWITCH
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#define FIO_HAVE_IOPRIO
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#define FIO_HAVE_IOPRIO_CLASS
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#define FIO_HAVE_ODIRECT
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#define FIO_HAVE_HUGETLB
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#define FIO_HAVE_BLKTRACE
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#define FIO_HAVE_CL_SIZE
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#define FIO_HAVE_FS_STAT
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#define FIO_HAVE_TRIM
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#define FIO_HAVE_GETTID
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#define FIO_USE_GENERIC_INIT_RANDOM_STATE
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#define FIO_HAVE_E4_ENG
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#define FIO_HAVE_BYTEORDER_FUNCS
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#define FIO_HAVE_MMAP_HUGE
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#define FIO_NO_HAVE_SHM_H
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#define OS_MAP_ANON MAP_ANONYMOUS
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#ifndef POSIX_MADV_DONTNEED
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#define posix_madvise madvise
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#define POSIX_MADV_DONTNEED MADV_DONTNEED
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#define POSIX_MADV_SEQUENTIAL MADV_SEQUENTIAL
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#define POSIX_MADV_RANDOM MADV_RANDOM
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#endif
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#ifdef MADV_REMOVE
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#define FIO_MADV_FREE MADV_REMOVE
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#endif
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#ifndef MAP_HUGETLB
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#define MAP_HUGETLB 0x40000 /* arch specific */
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#endif
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#ifndef CONFIG_NO_SHM
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/*
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* The Android NDK doesn't currently export <sys/shm.h>, so define the
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* necessary stuff here.
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*/
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#if __ANDROID_API__ >= 26
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#define shmat bionic_shmat
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#define shmctl bionic_shmctl
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#define shmdt bionic_shmdt
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#define shmget bionic_shmget
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#endif
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#include <sys/shm.h>
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#undef shmat
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#undef shmctl
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#undef shmdt
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#undef shmget
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#define SHM_HUGETLB 04000
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#include <stdio.h>
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#include <linux/ashmem.h>
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#define ASHMEM_DEVICE "/dev/ashmem"
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static inline int shmctl (int __shmid, int __cmd, struct shmid_ds *__buf)
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{
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int ret=0;
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if (__cmd == IPC_RMID)
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{
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int length = ioctl(__shmid, ASHMEM_GET_SIZE, NULL);
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struct ashmem_pin pin = {0 , length};
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ret = ioctl(__shmid, ASHMEM_UNPIN, &pin);
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close(__shmid);
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}
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return ret;
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}
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static inline int shmget (key_t __key, size_t __size, int __shmflg)
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{
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int fd,ret;
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char keybuf[11];
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fd = open(ASHMEM_DEVICE, O_RDWR);
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if (fd < 0)
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return fd;
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sprintf(keybuf,"%d",__key);
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ret = ioctl(fd, ASHMEM_SET_NAME, keybuf);
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if (ret < 0)
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goto error;
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ret = ioctl(fd, ASHMEM_SET_SIZE, __size);
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if (ret < 0)
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goto error;
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return fd;
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error:
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close(fd);
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return ret;
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}
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static inline void *shmat (int __shmid, const void *__shmaddr, int __shmflg)
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{
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size_t *ptr, size = ioctl(__shmid, ASHMEM_GET_SIZE, NULL);
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ptr = mmap(NULL, size + sizeof(size_t), PROT_READ | PROT_WRITE, MAP_SHARED, __shmid, 0);
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*ptr = size; //save size at beginning of buffer, for use with munmap
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return &ptr[1];
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}
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static inline int shmdt (const void *__shmaddr)
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{
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size_t *ptr, size;
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ptr = (size_t *)__shmaddr;
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ptr--;
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size = *ptr; //find mmap size which we stored at the beginning of the buffer
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return munmap((void *)ptr, size + sizeof(size_t));
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}
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#endif
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#define SPLICE_DEF_SIZE (64*1024)
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enum {
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IOPRIO_CLASS_NONE,
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IOPRIO_CLASS_RT,
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IOPRIO_CLASS_BE,
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IOPRIO_CLASS_IDLE,
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};
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enum {
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IOPRIO_WHO_PROCESS = 1,
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IOPRIO_WHO_PGRP,
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IOPRIO_WHO_USER,
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};
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#define IOPRIO_BITS 16
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#define IOPRIO_CLASS_SHIFT 13
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#define IOPRIO_MIN_PRIO 0 /* highest priority */
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#define IOPRIO_MAX_PRIO 7 /* lowest priority */
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#define IOPRIO_MIN_PRIO_CLASS 0
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#define IOPRIO_MAX_PRIO_CLASS 3
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static inline int ioprio_set(int which, int who, int ioprio_class, int ioprio)
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{
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/*
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* If no class is set, assume BE
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*/
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if (!ioprio_class)
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ioprio_class = IOPRIO_CLASS_BE;
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ioprio |= ioprio_class << IOPRIO_CLASS_SHIFT;
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return syscall(__NR_ioprio_set, which, who, ioprio);
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}
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#ifndef BLKGETSIZE64
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#define BLKGETSIZE64 _IOR(0x12,114,size_t)
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#endif
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#ifndef BLKFLSBUF
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#define BLKFLSBUF _IO(0x12,97)
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#endif
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#ifndef BLKDISCARD
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#define BLKDISCARD _IO(0x12,119)
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#endif
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static inline int blockdev_invalidate_cache(struct fio_file *f)
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{
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return ioctl(f->fd, BLKFLSBUF);
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}
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static inline int blockdev_size(struct fio_file *f, unsigned long long *bytes)
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{
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if (!ioctl(f->fd, BLKGETSIZE64, bytes))
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return 0;
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return errno;
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}
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static inline unsigned long long os_phys_mem(void)
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{
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long pagesize, pages;
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pagesize = sysconf(_SC_PAGESIZE);
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pages = sysconf(_SC_PHYS_PAGES);
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if (pages == -1 || pagesize == -1)
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return 0;
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return (unsigned long long) pages * (unsigned long long) pagesize;
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}
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typedef struct { unsigned short r[3]; } os_random_state_t;
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static inline void os_random_seed(unsigned long seed, os_random_state_t *rs)
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{
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rs->r[0] = seed & 0xffff;
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seed >>= 16;
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rs->r[1] = seed & 0xffff;
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seed >>= 16;
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rs->r[2] = seed & 0xffff;
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seed48(rs->r);
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}
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static inline long os_random_long(os_random_state_t *rs)
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{
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return nrand48(rs->r);
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}
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#ifdef O_NOATIME
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#define FIO_O_NOATIME O_NOATIME
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#else
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#define FIO_O_NOATIME 0
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#endif
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/* Check for GCC or Clang byte swap intrinsics */
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#if (__has_builtin(__builtin_bswap16) && __has_builtin(__builtin_bswap32) \
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&& __has_builtin(__builtin_bswap64)) || (__GNUC__ > 4 \
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|| (__GNUC__ == 4 && __GNUC_MINOR__ >= 8)) /* fio_swapN */
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#define fio_swap16(x) __builtin_bswap16(x)
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#define fio_swap32(x) __builtin_bswap32(x)
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#define fio_swap64(x) __builtin_bswap64(x)
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#else
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#include <byteswap.h>
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#define fio_swap16(x) bswap_16(x)
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#define fio_swap32(x) bswap_32(x)
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#define fio_swap64(x) bswap_64(x)
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#endif /* fio_swapN */
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#define CACHE_LINE_FILE \
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"/sys/devices/system/cpu/cpu0/cache/index0/coherency_line_size"
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static inline int arch_cache_line_size(void)
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{
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char size[32];
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int fd, ret;
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fd = open(CACHE_LINE_FILE, O_RDONLY);
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if (fd < 0)
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return -1;
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ret = read(fd, size, sizeof(size));
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close(fd);
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if (ret <= 0)
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return -1;
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else
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return atoi(size);
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}
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static inline unsigned long long get_fs_free_size(const char *path)
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{
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unsigned long long ret;
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struct statfs s;
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if (statfs(path, &s) < 0)
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return -1ULL;
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ret = s.f_bsize;
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ret *= (unsigned long long) s.f_bfree;
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return ret;
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}
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static inline int os_trim(int fd, unsigned long long start,
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unsigned long long len)
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{
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uint64_t range[2];
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range[0] = start;
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range[1] = len;
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if (!ioctl(fd, BLKDISCARD, range))
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return 0;
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return errno;
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}
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#ifdef CONFIG_SCHED_IDLE
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static inline int fio_set_sched_idle(void)
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{
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struct sched_param p = { .sched_priority = 0, };
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return sched_setscheduler(gettid(), SCHED_IDLE, &p);
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}
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#endif
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#endif
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