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#ifndef __SYS_VFS_H
#define __SYS_VFS_H
#include <stdint.h>
// make TODO VFS_MODULE_MAX equal to the actual number of modules in the base image (+ 2?)
#define VFS_MODULE_MAX 32
// Extended use 4 4k pages
#define VFS_EXTENDED_MODULE_MAX 128
#define VFS_EXTENDED_MODULE_TABLE_ADDRESS 0x0000000040000000UL
#define VFS_MODULE_NAME_MAX 64
#define VFS_SYMBOL_INIT _init
#define VFS_SYMBOL_START _start
#define VFS_SYMBOL_FINI _fini
#define VFS_SYMBOL_TEXT .text
#define VFS_SYMBOL_DATA .data
#define VFS_STRINGIFY(X) #X
#define VFS_TOSTRING(X) VFS_STRINGIFY(X)
#define VFS_MODULE_DEFINE_START(f) \
extern "C" void VFS_SYMBOL_START(void* args) \
{ \
f(args); \
}
#ifdef __cplusplus
extern "C"
{
#endif
extern const char* VFS_ROOT;
extern const char* VFS_ROOT_BIN;
extern const char* VFS_ROOT_DATA;
extern const char* VFS_ROOT_MSG;
enum VfsMessages
{
VFS_MSG_REGISTER_MSGQ,
VFS_MSG_RESOLVE_MSGQ,
VFS_MSG_EXEC,
};
struct VfsSystemModule
{
const char module[VFS_MODULE_NAME_MAX]; //!< Module name
void (*init)(void*); //!< ptr to init()
void (*start)(void*); //!< ptr to start()
void (*fini)(void*); //!< ptr to fini()
uint64_t * text; //!< ptr to text (code) section
uint64_t * data; //!< ptr to data section
uint64_t page_size; //!< no. of memory pages used
};
extern VfsSystemModule VFS_MODULES[VFS_MODULE_MAX];
extern uint64_t VFS_LAST_ADDRESS;
#ifdef __cplusplus
}
#endif
#endif
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