Last change
on this file since 667 was
444,
checked in by satin@…, 6 years ago
|
add newlib,libalmos-mkh, restructure shared_syscalls.h and mini-libc
|
File size:
973 bytes
|
Rev | Line | |
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[444] | 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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