| 0,0 → 1,60 |
|---|
| |
| #include <stddef.h> |
| #include "io.h" |
| |
| extern __io_handle __io_tab[64]; |
| |
| static int fake_io(const char *path, const void *buff, |
| size_t offset, size_t count, size_t *done) |
| { |
| *done = 0; |
| return 10; |
| }; |
| |
| static int fake_io_read(const char *path, void *buff, |
| size_t offset, size_t count, size_t *done) __attribute__ ((alias("fake_io"))); |
| |
| static int fake_io_write(const char *path, const void *buff, |
| size_t offset, size_t count, size_t *done) __attribute__ ((alias("fake_io"))); |
| |
| static inline void debug_out(const char val) |
| { |
| __asm__ __volatile__( |
| "int $0x40 \n\t" |
| ::"a"(63), "b"(1),"c"(val)); |
| } |
| |
| static int debugwrite(const char *path, const void *buff, |
| size_t offset, size_t count, size_t *writes) |
| { |
| int ret = count; |
| const char *p = buff; |
| |
| while (count--) |
| { |
| debug_out(*p++); |
| }; |
| *writes = ret; |
| return ret; |
| }; |
| |
| void init_stdio() |
| { |
| __io_handle *ioh; |
| |
| ioh = &__io_tab[__io_alloc()]; |
| ioh->mode = _READ|_ISTTY; |
| ioh->read = &fake_io_read; |
| ioh->write = &fake_io_write; |
| |
| ioh = &__io_tab[__io_alloc()]; |
| ioh->mode = _WRITE|_ISTTY; |
| ioh->read = &fake_io_read; |
| ioh->write = &debugwrite; |
| |
| ioh = &__io_tab[__io_alloc()]; |
| ioh->mode = _WRITE|_ISTTY; |
| ioh->read = &fake_io_read; |
| ioh->write = &debugwrite; |
| |
| } |