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#include <sys/time.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <stdint.h>
typedef struct fs_dirent_struct
{
uint32_t inode;
uint32_t offset;
uint16_t length;
uint8_t type;
char name[256];
}fs_dirent;
//fool-os syscalls
#define SYSCALL_READDIR 63
#define SYSCALL_HAS_DATA 80
#define SYSCALL_TUNE 81
//syscalls required by newlib
#define SYSCALL_EXIT 60
#define SYSCALL_WRITE 61
#define SYSCALL_READ 62
#define SYSCALL_EXECVE 64
#define SYSCALL_OPEN 65
#define SYSCALL_CLOSE 66
#define SYSCALL_FSTAT 67
#define SYSCALL_ISATTY 68
#define SYSCALL_LSEEK 69
#define SYSCALL_SBRK 70
#define SYSCALL_STAT 74
#define SYSCALL_LSTAT 79
// stubs only so far!
#define SYSCALL_GETTIMEOFDAY 71
#define SYSCALL_FORK 72
#define SYSCALL_KILL 73
#define SYSCALL_LINK 73
#define SYSCALL_TIMES 75
#define SYSCALL_UNLINK 76
#define SYSCALL_WAIT 77
#define SYSCALL_GETPID 78
/*
int syscall_execve(char *name, char **argv, char **env);
int syscall_write(int file, char *buf, int len);
int syscall_readdir(const char *name,struct fs_dirent *dirs,int max);
int syscall_exit(int ret, int none1, int none2);
int syscall_open(char *name, int flags, int len);
int syscall_read(int file, char *buf, int len);
int syscall_close(int file,int none1,int none2);
int syscall_fstat(int file, struct stat *st,int none);
int syscall_isatty(int file,int none1,int none2);
int syscall_lseek(int file,int ptr,int dir);
int syscall_stat(char *file, struct stat *st);
int syscall_sbrk(int incr, int none1, int none2);
//
int syscall_gettimeofday(struct timeval *tv, struct timezone *tz);
int syscall_fork(void);
int syscall_getpid(void);
int syscall_kill(int pid, int sig);
int syscall_link(char *old, char *ne);
int syscall_times(struct tms *buf);
int syscall_unlink(char *name);
int syscall_wait(int *status);
//
int syscall_unhandled(int nr);
*/
extern char **environ;
//struct _reent *_impure_ptr;
// generic syscall interface!
/*int volatile __attribute__ ((noinline)) syscall(int call, int p1, int p2, int p3)
{
int ebx; // persist over func call( a,c,d are scratch)
int ret; // will hold return val
asm("mov %%ebx, %0": "=b" (ebx));
// asm("pusha");
// select syscall
asm("mov %0, %%eax"::"m"(call));
// pass params
asm("mov %0,%%edx"::"m"(p1));
asm("mov %0,%%ecx"::"m"(p2));
asm("mov %0,%%ebx"::"m"(p3));
// interrrupt
asm("int $0x80");
// get return value
asm("mov %%ebx, %0": "=b" (ret));
// restore
asm("mov %0,%%ebx"::"m"(ebx));
// asm("popa");
return ret;
}
*/
// fool os custom
int readdir(const char *name,fs_dirent *dirs,int max)
{
return syscall(SYSCALL_READDIR,name,dirs,max);
}
int has_data_waiting()
{
return syscall(SYSCALL_HAS_DATA,0,0,0);
}
int fool_tune(int v1, int v2, int v3)
{
return syscall(SYSCALL_TUNE,v1,v2,v3);
}
void _exit(int ret)
{
_exit2(ret,environ);
}
void _exit2(int ret,char **environ)
{
return syscall(SYSCALL_EXIT,ret,environ,0);
}
//required by newlibc
int _close(int file)
{
return syscall(SYSCALL_CLOSE,file,0,0);
}
int _isatty(int file)
{
return syscall(SYSCALL_ISATTY,file,0,0);
}
int _lseek(int file, int ptr, int dir)
{
return syscall(SYSCALL_LSEEK,file,ptr,dir);
}
int _read(int file, char *ptr, int len)
{
return syscall(SYSCALL_READ,file,ptr,len);
}
int _open(const char *name, int flags, int mode)
{
return syscall(SYSCALL_OPEN,name,flags,mode);
}
int _write(int file, char *ptr, int len)
{
return syscall(SYSCALL_WRITE,file,ptr,len);
}
int _execve(char *name, char **argv, char **env)
{
return syscall(SYSCALL_EXECVE,name,argv,env);
}
uint32_t _sbrk(int incr)
{
return syscall(SYSCALL_SBRK,incr,0,0);
}
int _gettimeofday(struct timeval *tv, void *tz)
{
return syscall(SYSCALL_GETTIMEOFDAY,tv,tz,0);
}
int _fork(void)
{
return syscall(SYSCALL_FORK,0,0,0);
}
int _getpid(void)
{
return syscall(SYSCALL_GETPID,0,0,0);
}
int _kill(int pid, int sig)
{
return syscall(SYSCALL_KILL,pid,sig,0);
}
int _link(char *old, char *ne)
{
return syscall(SYSCALL_LINK,old,ne,0);
}
int _unlink(char *name)
{
return syscall(SYSCALL_UNLINK,name,0,0);
}
int _times(struct tms *buf)
{
return syscall(SYSCALL_TIMES,buf,0,0);
}
int _wait(int *status)
{
return syscall(SYSCALL_WAIT,status,0,0);
}
int _stat(const char *file, struct stat *st)
{
return syscall(SYSCALL_STAT,file,st,0);
}
int _lstat(const char *file, struct stat *st)
{
return syscall(SYSCALL_LSTAT,file,st,0);
}
int _fstat(int file, struct stat *st)
{
return syscall(SYSCALL_FSTAT,file,st,0);
}
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