diff options
Diffstat (limited to 'include/qemu')
-rw-r--r-- | include/qemu/memalign.h | 61 | ||||
-rw-r--r-- | include/qemu/osdep.h | 31 | ||||
-rw-r--r-- | include/qemu/typedefs.h | 2 | ||||
-rw-r--r-- | include/qemu/xattr.h | 4 |
4 files changed, 66 insertions, 32 deletions
diff --git a/include/qemu/memalign.h b/include/qemu/memalign.h new file mode 100644 index 0000000000..fa299f3bf6 --- /dev/null +++ b/include/qemu/memalign.h @@ -0,0 +1,61 @@ +/* + * Allocation and free functions for aligned memory + * + * This work is licensed under the terms of the GNU GPL, version 2 or later. + * See the COPYING file in the top-level directory. + */ + +#ifndef QEMU_MEMALIGN_H +#define QEMU_MEMALIGN_H + +/** + * qemu_try_memalign: Allocate aligned memory + * @alignment: required alignment, in bytes + * @size: size of allocation, in bytes + * + * Allocate memory on an aligned boundary (i.e. the returned + * address will be an exact multiple of @alignment). + * @alignment must be a power of 2, or the function will assert(). + * On success, returns allocated memory; on failure, returns NULL. + * + * The memory allocated through this function must be freed via + * qemu_vfree() (and not via free()). + */ +void *qemu_try_memalign(size_t alignment, size_t size); +/** + * qemu_memalign: Allocate aligned memory, without failing + * @alignment: required alignment, in bytes + * @size: size of allocation, in bytes + * + * Allocate memory in the same way as qemu_try_memalign(), but + * abort() with an error message if the memory allocation fails. + * + * The memory allocated through this function must be freed via + * qemu_vfree() (and not via free()). + */ +void *qemu_memalign(size_t alignment, size_t size); +/** + * qemu_vfree: Free memory allocated through qemu_memalign + * @ptr: memory to free + * + * This function must be used to free memory allocated via qemu_memalign() + * or qemu_try_memalign(). (Using the wrong free function will cause + * subtle bugs on Windows hosts.) + */ +void qemu_vfree(void *ptr); +/* + * It's an analog of GLIB's g_autoptr_cleanup_generic_gfree(), used to define + * g_autofree macro. + */ +static inline void qemu_cleanup_generic_vfree(void *p) +{ + void **pp = (void **)p; + qemu_vfree(*pp); +} + +/* + * Analog of g_autofree, but qemu_vfree is called on cleanup instead of g_free. + */ +#define QEMU_AUTO_VFREE __attribute__((cleanup(qemu_cleanup_generic_vfree))) + +#endif diff --git a/include/qemu/osdep.h b/include/qemu/osdep.h index 7bcce3bceb..c9ec7830c9 100644 --- a/include/qemu/osdep.h +++ b/include/qemu/osdep.h @@ -379,28 +379,10 @@ extern "C" { #endif int qemu_daemon(int nochdir, int noclose); -void *qemu_try_memalign(size_t alignment, size_t size); -void *qemu_memalign(size_t alignment, size_t size); void *qemu_anon_ram_alloc(size_t size, uint64_t *align, bool shared, bool noreserve); -void qemu_vfree(void *ptr); void qemu_anon_ram_free(void *ptr, size_t size); -/* - * It's an analog of GLIB's g_autoptr_cleanup_generic_gfree(), used to define - * g_autofree macro. - */ -static inline void qemu_cleanup_generic_vfree(void *p) -{ - void **pp = (void **)p; - qemu_vfree(*pp); -} - -/* - * Analog of g_autofree, but qemu_vfree is called on cleanup instead of g_free. - */ -#define QEMU_AUTO_VFREE __attribute__((cleanup(qemu_cleanup_generic_vfree))) - #ifdef _WIN32 #define HAVE_CHARDEV_SERIAL 1 #elif defined(__linux__) || defined(__sun__) || defined(__FreeBSD__) \ @@ -673,19 +655,6 @@ static inline int platform_does_not_support_system(const char *command) } #endif /* !HAVE_SYSTEM_FUNCTION */ -/** - * Duplicate directory entry @dent. - * - * It is highly recommended to use this function instead of open coding - * duplication of @c dirent objects, because the actual @c struct @c dirent - * size may be bigger or shorter than @c sizeof(struct dirent) and correct - * handling is platform specific (see gitlab issue #841). - * - * @dent - original directory entry to be duplicated - * @returns duplicated directory entry which should be freed with g_free() - */ -struct dirent *qemu_dirent_dup(struct dirent *dent); - #ifdef __cplusplus } #endif diff --git a/include/qemu/typedefs.h b/include/qemu/typedefs.h index ee60eb3de4..c564f54c11 100644 --- a/include/qemu/typedefs.h +++ b/include/qemu/typedefs.h @@ -26,6 +26,7 @@ typedef struct AddressSpace AddressSpace; typedef struct AioContext AioContext; typedef struct Aml Aml; typedef struct AnnounceTimer AnnounceTimer; +typedef struct ArchCPU ArchCPU; typedef struct BdrvDirtyBitmap BdrvDirtyBitmap; typedef struct BdrvDirtyBitmapIter BdrvDirtyBitmapIter; typedef struct BlockBackend BlockBackend; @@ -39,6 +40,7 @@ typedef struct CompatProperty CompatProperty; typedef struct CoMutex CoMutex; typedef struct ConfidentialGuestSupport ConfidentialGuestSupport; typedef struct CPUAddressSpace CPUAddressSpace; +typedef struct CPUArchState CPUArchState; typedef struct CPUState CPUState; typedef struct DeviceListener DeviceListener; typedef struct DeviceState DeviceState; diff --git a/include/qemu/xattr.h b/include/qemu/xattr.h index a83fe8e749..f1d0f7be74 100644 --- a/include/qemu/xattr.h +++ b/include/qemu/xattr.h @@ -22,7 +22,9 @@ #ifdef CONFIG_LIBATTR # include <attr/xattr.h> #else -# define ENOATTR ENODATA +# if !defined(ENOATTR) +# define ENOATTR ENODATA +# endif # include <sys/xattr.h> #endif |