Last change
on this file since 495 was
444,
checked in by satin@…, 7 years ago
|
add newlib,libalmos-mkh, restructure shared_syscalls.h and mini-libc
|
File size:
973 bytes
|
Line | |
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1 | #include <sys/types.h> |
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2 | #include <sys/stat.h> |
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3 | |
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4 | static char *heap_end = 0; |
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5 | |
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6 | int |
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7 | brk (void *ptr) |
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8 | { |
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9 | heap_end = ptr; |
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10 | return 0; |
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11 | } |
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12 | |
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13 | caddr_t |
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14 | sbrk (int amt) |
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15 | { |
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16 | extern char end; |
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17 | char *prev_heap_end; |
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18 | |
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19 | if (heap_end == 0) |
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20 | heap_end = &end; |
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21 | prev_heap_end = heap_end; |
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22 | heap_end += amt; |
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23 | return ((caddr_t) prev_heap_end); |
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24 | } |
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25 | |
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26 | int |
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27 | isatty (int file) |
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28 | { |
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29 | return file<3; |
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30 | } |
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31 | |
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32 | int |
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33 | fstat (int file, struct stat *st) |
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34 | { |
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35 | st->st_mode = S_IFCHR; |
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36 | return 0; |
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37 | } |
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38 | |
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39 | int |
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40 | stat (const char *__restrict filename, struct stat *__restrict st) |
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41 | { |
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42 | st->st_mode = S_IFCHR; |
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43 | return 0; |
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44 | } |
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45 | |
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46 | int |
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47 | lseek (int fd, off_t offset, int type) |
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48 | { |
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49 | return _sys_lseek (fd, offset, type); |
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50 | } |
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51 | |
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52 | int |
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53 | open (char *file, int mode, int perms) |
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54 | { |
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55 | return _sys_open (file, mode, perms); |
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56 | } |
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57 | |
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58 | int |
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59 | close (int fd) |
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60 | { |
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61 | return _sys_close (fd); |
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62 | } |
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63 | |
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64 | int |
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65 | getpid () |
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66 | { |
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67 | return -1; |
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68 | } |
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69 | |
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70 | int |
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71 | kill (int pid, int signal) |
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72 | { |
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73 | exit (signal); |
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74 | } |
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75 | |
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76 | #if 0 |
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77 | /* This conflicts with the abort defined in newlib. */ |
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78 | void |
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79 | abort () |
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80 | { |
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81 | exit (6); |
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82 | } |
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83 | #endif |
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