The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1 | #ifndef QEMU_OSDEP_H |
| 2 | #define QEMU_OSDEP_H |
| 3 | |
| 4 | #include <stdarg.h> |
David 'Digit' Turner | 2910f18 | 2010-05-10 18:48:35 -0700 | [diff] [blame] | 5 | #include <stddef.h> |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 6 | #ifdef __OpenBSD__ |
| 7 | #include <sys/types.h> |
| 8 | #include <sys/signal.h> |
| 9 | #endif |
| 10 | |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 11 | #ifndef _WIN32 |
| 12 | #include <sys/time.h> |
| 13 | #endif |
| 14 | |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 15 | #ifndef glue |
| 16 | #define xglue(x, y) x ## y |
| 17 | #define glue(x, y) xglue(x, y) |
| 18 | #define stringify(s) tostring(s) |
| 19 | #define tostring(s) #s |
| 20 | #endif |
| 21 | |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 22 | #ifndef likely |
| 23 | #if __GNUC__ < 3 |
| 24 | #define __builtin_expect(x, n) (x) |
| 25 | #endif |
| 26 | |
| 27 | #define likely(x) __builtin_expect(!!(x), 1) |
| 28 | #define unlikely(x) __builtin_expect(!!(x), 0) |
| 29 | #endif |
| 30 | |
David Turner | f7dd220 | 2010-09-10 10:59:22 +0200 | [diff] [blame] | 31 | #ifdef CONFIG_NEED_OFFSETOF |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 32 | #define offsetof(TYPE, MEMBER) ((size_t) &((TYPE *) 0)->MEMBER) |
| 33 | #endif |
| 34 | #ifndef container_of |
| 35 | #define container_of(ptr, type, member) ({ \ |
| 36 | const typeof(((type *) 0)->member) *__mptr = (ptr); \ |
| 37 | (type *) ((char *) __mptr - offsetof(type, member));}) |
| 38 | #endif |
| 39 | |
David 'Digit' Turner | 2910f18 | 2010-05-10 18:48:35 -0700 | [diff] [blame] | 40 | /* Convert from a base type to a parent type, with compile time checking. */ |
| 41 | #ifdef __GNUC__ |
| 42 | #define DO_UPCAST(type, field, dev) ( __extension__ ( { \ |
| 43 | char __attribute__((unused)) offset_must_be_zero[ \ |
| 44 | -offsetof(type, field)]; \ |
| 45 | container_of(dev, type, field);})) |
| 46 | #else |
| 47 | #define DO_UPCAST(type, field, dev) container_of(dev, type, field) |
| 48 | #endif |
| 49 | |
| 50 | #define typeof_field(type, field) typeof(((type *)0)->field) |
| 51 | #define type_check(t1,t2) ((t1*)0 - (t2*)0) |
| 52 | |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 53 | #ifndef MIN |
| 54 | #define MIN(a, b) (((a) < (b)) ? (a) : (b)) |
| 55 | #endif |
| 56 | #ifndef MAX |
| 57 | #define MAX(a, b) (((a) > (b)) ? (a) : (b)) |
| 58 | #endif |
| 59 | |
| 60 | #ifndef ARRAY_SIZE |
| 61 | #define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0])) |
| 62 | #endif |
| 63 | |
| 64 | #ifndef always_inline |
David 'Digit' Turner | 2910f18 | 2010-05-10 18:48:35 -0700 | [diff] [blame] | 65 | #if !((__GNUC__ < 3) || defined(__APPLE__)) |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 66 | #ifdef __OPTIMIZE__ |
David 'Digit' Turner | 2910f18 | 2010-05-10 18:48:35 -0700 | [diff] [blame] | 67 | #define inline __attribute__ (( always_inline )) __inline__ |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 68 | #endif |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 69 | #endif |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 70 | #else |
| 71 | #define inline always_inline |
| 72 | #endif |
| 73 | |
| 74 | #ifdef __i386__ |
| 75 | #define REGPARM __attribute((regparm(3))) |
| 76 | #else |
| 77 | #define REGPARM |
| 78 | #endif |
| 79 | |
| 80 | #define qemu_printf printf |
| 81 | |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 82 | #if defined (__GNUC__) && defined (__GNUC_MINOR__) |
| 83 | # define QEMU_GNUC_PREREQ(maj, min) \ |
| 84 | ((__GNUC__ << 16) + __GNUC_MINOR__ >= ((maj) << 16) + (min)) |
| 85 | #else |
| 86 | # define QEMU_GNUC_PREREQ(maj, min) 0 |
| 87 | #endif |
| 88 | |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 89 | void *qemu_memalign(size_t alignment, size_t size); |
| 90 | void *qemu_vmalloc(size_t size); |
| 91 | void qemu_vfree(void *ptr); |
| 92 | |
| 93 | int qemu_create_pidfile(const char *filename); |
| 94 | |
| 95 | #ifdef _WIN32 |
| 96 | int ffs(int i); |
| 97 | |
David Turner | f7dd220 | 2010-09-10 10:59:22 +0200 | [diff] [blame] | 98 | int setenv(const char *name, const char *value, int overwrite); |
David 'Digit' Turner | 4e024bb | 2010-09-22 14:19:28 +0200 | [diff] [blame] | 99 | int asprintf(char **sptr, char *fmt, ...); |
| 100 | int vasprintf(char **sptr, char *fmt, va_list args); |
David Turner | f7dd220 | 2010-09-10 10:59:22 +0200 | [diff] [blame] | 101 | |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 102 | typedef struct { |
| 103 | long tv_sec; |
| 104 | long tv_usec; |
| 105 | } qemu_timeval; |
| 106 | int qemu_gettimeofday(qemu_timeval *tp); |
| 107 | #else |
| 108 | typedef struct timeval qemu_timeval; |
| 109 | #define qemu_gettimeofday(tp) gettimeofday(tp, NULL); |
| 110 | #endif /* !_WIN32 */ |
| 111 | |
| 112 | #endif |