projects / fio.git / blame
| Commit | Line | Data |
|---|---|---|
| ebac4655 JA |
1 | /* |
| 2 | * fio - the flexible io tester | |
| 3 | * | |
| 4 | * Copyright (C) 2005 Jens Axboe <axboe@suse.de> | |
| 2e1df07d | 5 | * Copyright (C) 2006-2012 Jens Axboe <axboe@kernel.dk> |
| ebac4655 | 6 | * |
| 8e9fe637 JA |
7 | * The license below covers all files distributed with fio unless otherwise |
| 8 | * noted in the file itself. | |
| 9 | * | |
| ebac4655 | 10 | * This program is free software; you can redistribute it and/or modify |
| 8e9fe637 JA |
11 | * it under the terms of the GNU General Public License version 2 as |
| 12 | * published by the Free Software Foundation. | |
| ebac4655 JA |
13 | * |
| 14 | * This program is distributed in the hope that it will be useful, | |
| 15 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 16 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
| 17 | * GNU General Public License for more details. | |
| 18 | * | |
| 19 | * You should have received a copy of the GNU General Public License | |
| 20 | * along with this program; if not, write to the Free Software | |
| 21 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
| 22 | * | |
| 23 | */ | |
| ebac4655 | 24 | #include <unistd.h> |
| dbe1125e | 25 | #include <locale.h> |
| a5b01f1b | 26 | #include <time.h> |
| ebac4655 JA |
27 | |
| 28 | #include "fio.h" | |
| 2e5cdb11 | 29 | #include "smalloc.h" |
| ebac4655 | 30 | |
| 5be4c944 JA |
31 | uintptr_t page_mask = 0; |
| 32 | uintptr_t page_size = 0; | |
| d529ee19 | 33 | |
| 0ad5edcc JA |
34 | static int endian_check(void) |
| 35 | { | |
| 36 | union { | |
| 37 | uint8_t c[8]; | |
| 38 | uint64_t v; | |
| 39 | } u; | |
| 40 | int le = 0, be = 0; | |
| 41 | ||
| 42 | u.v = 0x12; | |
| 43 | if (u.c[7] == 0x12) | |
| 44 | be = 1; | |
| 45 | else if (u.c[0] == 0x12) | |
| 46 | le = 1; | |
| 47 | ||
| 0dcebdf4 | 48 | #if defined(CONFIG_LITTLE_ENDIAN) |
| 0ad5edcc JA |
49 | if (be) |
| 50 | return 1; | |
| 0dcebdf4 | 51 | #elif defined(CONFIG_BIG_ENDIAN) |
| 0ad5edcc JA |
52 | if (le) |
| 53 | return 1; | |
| 54 | #else | |
| 55 | return 1; | |
| 56 | #endif | |
| 57 | ||
| 58 | if (!le && !be) | |
| 59 | return 1; | |
| 60 | ||
| 61 | return 0; | |
| 62 | } | |
| 63 | ||
| 50d16976 JA |
64 | int main(int argc, char *argv[], char *envp[]) |
| 65 | { | |
| 66 | long ps; | |
| 67 | ||
| 0ad5edcc JA |
68 | if (endian_check()) { |
| 69 | log_err("fio: endianness settings appear wrong.\n"); | |
| 70 | log_err("fio: please report this to fio@vger.kernel.org\n"); | |
| 71 | return 1; | |
| 72 | } | |
| 73 | ||
| 67bf9823 JA |
74 | #if !defined(CONFIG_GETTIMEOFDAY) && !defined(CONFIG_CLOCK_GETTIME) |
| 75 | #error "No available clock source!" | |
| 76 | #endif | |
| 77 | ||
| 50d16976 JA |
78 | arch_init(envp); |
| 79 | ||
| 80 | sinit(); | |
| 81 | ||
| 82 | /* | |
| 83 | * We need locale for number printing, if it isn't set then just | |
| 84 | * go with the US format. | |
| 85 | */ | |
| 86 | if (!getenv("LC_NUMERIC")) | |
| 87 | setlocale(LC_NUMERIC, "en_US"); | |
| 88 | ||
| 89 | ps = sysconf(_SC_PAGESIZE); | |
| 90 | if (ps < 0) { | |
| 91 | log_err("Failed to get page size\n"); | |
| 92 | return 1; | |
| 93 | } | |
| 94 | ||
| 95 | page_size = ps; | |
| 96 | page_mask = ps - 1; | |
| 97 | ||
| 98 | fio_keywords_init(); | |
| 99 | ||
| 100 | if (parse_options(argc, argv)) | |
| 101 | return 1; | |
| 102 | ||
| fa80feae JA |
103 | fio_time_init(); |
| 104 | ||
| 2e1df07d JA |
105 | if (nr_clients) |
| 106 | return fio_handle_clients(); | |
| 107 | else | |
| 108 | return fio_backend(); | |
| 50d16976 | 109 | } |