| 1 | #ifndef FIO_OS_ANDROID_H |
| 2 | #define FIO_OS_ANDROID_H |
| 3 | |
| 4 | #define FIO_OS os_android |
| 5 | |
| 6 | #include <sys/ioctl.h> |
| 7 | #include <sys/uio.h> |
| 8 | #include <sys/syscall.h> |
| 9 | #include <sys/vfs.h> |
| 10 | #include <unistd.h> |
| 11 | #include <fcntl.h> |
| 12 | #include <errno.h> |
| 13 | #include <sched.h> |
| 14 | #include <linux/unistd.h> |
| 15 | #include <linux/major.h> |
| 16 | #include <endian.h> |
| 17 | |
| 18 | #include "indirect.h" |
| 19 | #include "binject.h" |
| 20 | #include "../file.h" |
| 21 | |
| 22 | #define FIO_HAVE_DISK_UTIL |
| 23 | #define FIO_HAVE_SPLICE |
| 24 | #define FIO_HAVE_IOSCHED_SWITCH |
| 25 | #define FIO_HAVE_ODIRECT |
| 26 | #define FIO_HAVE_HUGETLB |
| 27 | #define FIO_HAVE_BLKTRACE |
| 28 | #define FIO_HAVE_STRSEP |
| 29 | #define FIO_HAVE_POSIXAIO_FSYNC |
| 30 | #define FIO_HAVE_PSHARED_MUTEX |
| 31 | #define FIO_HAVE_CL_SIZE |
| 32 | #define FIO_HAVE_FDATASYNC |
| 33 | #define FIO_HAVE_FS_STAT |
| 34 | #define FIO_HAVE_TRIM |
| 35 | #define FIO_HAVE_CLOCK_MONOTONIC |
| 36 | #define FIO_HAVE_GETTID |
| 37 | #define FIO_USE_GENERIC_INIT_RANDOM_STATE |
| 38 | #define FIO_HAVE_E4_ENG |
| 39 | #define FIO_HAVE_BYTEORDER_FUNCS |
| 40 | |
| 41 | #define OS_MAP_ANON MAP_ANONYMOUS |
| 42 | |
| 43 | #define posix_madvise madvise |
| 44 | #define POSIX_MADV_DONTNEED MADV_DONTNEED |
| 45 | #define POSIX_MADV_SEQUENTIAL MADV_SEQUENTIAL |
| 46 | #define POSIX_MADV_RANDOM MADV_RANDOM |
| 47 | #ifdef MADV_REMOVE |
| 48 | #define FIO_MADV_FREE MADV_REMOVE |
| 49 | #endif |
| 50 | |
| 51 | |
| 52 | /* |
| 53 | * The Android NDK doesn't currently export <sys/shm.h>, so define the |
| 54 | * necessary stuff here. |
| 55 | */ |
| 56 | |
| 57 | #include <linux/shm.h> |
| 58 | #define SHM_HUGETLB 04000 |
| 59 | |
| 60 | static inline int shmctl (int __shmid, int __cmd, struct shmid_ds *__buf) |
| 61 | { |
| 62 | return syscall(__NR_shmctl, __shmid, __cmd, __buf); |
| 63 | } |
| 64 | |
| 65 | static inline int shmget (key_t __key, size_t __size, int __shmflg) |
| 66 | { |
| 67 | return syscall(__NR_shmget, __key, __size, __shmflg); |
| 68 | } |
| 69 | |
| 70 | static inline void *shmat (int __shmid, const void *__shmaddr, int __shmflg) |
| 71 | { |
| 72 | return (void *)syscall(__NR_shmat, __shmid, __shmaddr, __shmflg); |
| 73 | } |
| 74 | |
| 75 | static inline int shmdt (const void *__shmaddr) |
| 76 | { |
| 77 | return syscall(__NR_shmctl, __shmaddr); |
| 78 | } |
| 79 | |
| 80 | |
| 81 | /* |
| 82 | * Just check for SPLICE_F_MOVE, if that isn't there, assume the others |
| 83 | * aren't either. |
| 84 | */ |
| 85 | #ifndef SPLICE_F_MOVE |
| 86 | #define SPLICE_F_MOVE (0x01) /* move pages instead of copying */ |
| 87 | #define SPLICE_F_NONBLOCK (0x02) /* don't block on the pipe splicing (but */ |
| 88 | /* we may still block on the fd we splice */ |
| 89 | /* from/to, of course */ |
| 90 | #define SPLICE_F_MORE (0x04) /* expect more data */ |
| 91 | #define SPLICE_F_GIFT (0x08) /* pages passed in are a gift */ |
| 92 | |
| 93 | static inline int splice(int fdin, loff_t *off_in, int fdout, loff_t *off_out, |
| 94 | size_t len, unsigned int flags) |
| 95 | { |
| 96 | return syscall(__NR_sys_splice, fdin, off_in, fdout, off_out, len, flags); |
| 97 | } |
| 98 | |
| 99 | static inline int tee(int fdin, int fdout, size_t len, unsigned int flags) |
| 100 | { |
| 101 | return syscall(__NR_sys_tee, fdin, fdout, len, flags); |
| 102 | } |
| 103 | |
| 104 | static inline int vmsplice(int fd, const struct iovec *iov, |
| 105 | unsigned long nr_segs, unsigned int flags) |
| 106 | { |
| 107 | return syscall(__NR_sys_vmsplice, fd, iov, nr_segs, flags); |
| 108 | } |
| 109 | #endif |
| 110 | |
| 111 | #define SPLICE_DEF_SIZE (64*1024) |
| 112 | |
| 113 | #ifndef BLKGETSIZE64 |
| 114 | #define BLKGETSIZE64 _IOR(0x12,114,size_t) |
| 115 | #endif |
| 116 | |
| 117 | #ifndef BLKFLSBUF |
| 118 | #define BLKFLSBUF _IO(0x12,97) |
| 119 | #endif |
| 120 | |
| 121 | #ifndef BLKDISCARD |
| 122 | #define BLKDISCARD _IO(0x12,119) |
| 123 | #endif |
| 124 | |
| 125 | static inline int blockdev_invalidate_cache(struct fio_file *f) |
| 126 | { |
| 127 | return ioctl(f->fd, BLKFLSBUF); |
| 128 | } |
| 129 | |
| 130 | static inline int blockdev_size(struct fio_file *f, unsigned long long *bytes) |
| 131 | { |
| 132 | if (!ioctl(f->fd, BLKGETSIZE64, bytes)) |
| 133 | return 0; |
| 134 | |
| 135 | return errno; |
| 136 | } |
| 137 | |
| 138 | static inline unsigned long long os_phys_mem(void) |
| 139 | { |
| 140 | long pagesize, pages; |
| 141 | |
| 142 | pagesize = sysconf(_SC_PAGESIZE); |
| 143 | pages = sysconf(_SC_PHYS_PAGES); |
| 144 | if (pages == -1 || pagesize == -1) |
| 145 | return 0; |
| 146 | |
| 147 | return (unsigned long long) pages * (unsigned long long) pagesize; |
| 148 | } |
| 149 | |
| 150 | typedef struct { unsigned short r[3]; } os_random_state_t; |
| 151 | |
| 152 | static inline void os_random_seed(unsigned long seed, os_random_state_t *rs) |
| 153 | { |
| 154 | rs->r[0] = seed & 0xffff; |
| 155 | seed >>= 16; |
| 156 | rs->r[1] = seed & 0xffff; |
| 157 | seed >>= 16; |
| 158 | rs->r[2] = seed & 0xffff; |
| 159 | seed48(rs->r); |
| 160 | } |
| 161 | |
| 162 | static inline long os_random_long(os_random_state_t *rs) |
| 163 | { |
| 164 | return nrand48(rs->r); |
| 165 | } |
| 166 | |
| 167 | #ifdef O_NOATIME |
| 168 | #define FIO_O_NOATIME O_NOATIME |
| 169 | #else |
| 170 | #define FIO_O_NOATIME 0 |
| 171 | #endif |
| 172 | |
| 173 | #if __BYTE_ORDER == __LITTLE_ENDIAN |
| 174 | #define FIO_LITTLE_ENDIAN |
| 175 | #elif __BYTE_ORDER == __BIG_ENDIAN |
| 176 | #define FIO_BIG_ENDIAN |
| 177 | #else |
| 178 | #error "Unknown endianness" |
| 179 | #endif |
| 180 | |
| 181 | #define fio_swap16(x) __bswap_16(x) |
| 182 | #define fio_swap32(x) __bswap_32(x) |
| 183 | #define fio_swap64(x) __bswap_64(x) |
| 184 | |
| 185 | #define CACHE_LINE_FILE \ |
| 186 | "/sys/devices/system/cpu/cpu0/cache/index0/coherency_line_size" |
| 187 | |
| 188 | static inline int arch_cache_line_size(void) |
| 189 | { |
| 190 | char size[32]; |
| 191 | int fd, ret; |
| 192 | |
| 193 | fd = open(CACHE_LINE_FILE, O_RDONLY); |
| 194 | if (fd < 0) |
| 195 | return -1; |
| 196 | |
| 197 | ret = read(fd, size, sizeof(size)); |
| 198 | |
| 199 | close(fd); |
| 200 | |
| 201 | if (ret <= 0) |
| 202 | return -1; |
| 203 | else |
| 204 | return atoi(size); |
| 205 | } |
| 206 | |
| 207 | static inline unsigned long long get_fs_size(const char *path) |
| 208 | { |
| 209 | unsigned long long ret; |
| 210 | struct statfs s; |
| 211 | |
| 212 | if (statfs(path, &s) < 0) |
| 213 | return -1ULL; |
| 214 | |
| 215 | ret = s.f_bsize; |
| 216 | ret *= (unsigned long long) s.f_bfree; |
| 217 | return ret; |
| 218 | } |
| 219 | |
| 220 | static inline int os_trim(int fd, unsigned long long start, |
| 221 | unsigned long long len) |
| 222 | { |
| 223 | uint64_t range[2]; |
| 224 | |
| 225 | range[0] = start; |
| 226 | range[1] = len; |
| 227 | |
| 228 | if (!ioctl(fd, BLKDISCARD, range)) |
| 229 | return 0; |
| 230 | |
| 231 | return errno; |
| 232 | } |
| 233 | |
| 234 | #endif |