diff options
Diffstat (limited to 'kernel')
| -rw-r--r-- | kernel/syscalls.c | 32 | ||||
| -rw-r--r-- | kernel/syscalls.h | 3 |
2 files changed, 29 insertions, 6 deletions
diff --git a/kernel/syscalls.c b/kernel/syscalls.c index 3b599c0..b5dd6df 100644 --- a/kernel/syscalls.c +++ b/kernel/syscalls.c @@ -21,6 +21,7 @@ #include "reent.h" #include "errno.h" +/** errno helper */ void set_errno(int no) { struct _reent *impure_ptr=VMEM_USER_NEWLIB; @@ -85,9 +86,9 @@ char* syscall_get_name(uint32_t num) case 73: return "SYSCALL_KILL"; case 80: - return "SYSCALL_POLL"; - case 83: return "SYSCALL_CLONE"; + case 84: + return "SYSCALL_PIPE"; } return "UNKNOWN SYSCALL NUM"; } @@ -392,6 +393,27 @@ uint32_t syscall_generic_test(uint32_t nr,uint32_t p1, uint32_t p2, uint32_t p3, return 1; } +uint32_t syscall_pipe(uint32_t *addr) +{ + if( next_fifo>=MAX_FIFOS || next_fd>=MAX_FD)kpanic("we ran out of fd's or fifo's"); + fd pipfds[2]; + int ret=fds_from_pipe(pipfds); + + fds[next_fd]=pipfds[0] ; + *addr=next_fd; + addr++; + + next_fd++; + if( next_fifo>=MAX_FIFOS || next_fd>=MAX_FD)kpanic("we ran out of fd's or fifo's"); + + fds[next_fd]=pipfds[1] ; + *addr=next_fd; + next_fd++; + + return ret; + +} + uint32_t syscall_generic(uint32_t nr,uint32_t p1, uint32_t p2, uint32_t p3, uint32_t pid) { switch(nr){ @@ -444,8 +466,8 @@ uint32_t syscall_generic(uint32_t nr,uint32_t p1, uint32_t p2, uint32_t p3, uint case SYSCALL_KILL : // return task_kill(p1,p2,p3); return -1; - case SYSCALL_POLL : - return syscall_poll(p1); + case SYSCALL_PIPE : + return syscall_pipe(p1); } - return -1; + kpanic("unknown syscall"); } diff --git a/kernel/syscalls.h b/kernel/syscalls.h index b736519..b7422af 100644 --- a/kernel/syscalls.h +++ b/kernel/syscalls.h @@ -23,7 +23,8 @@ #define SYSCALL_KILL 73 #define SYSCALL_POLL 80 //shit!? #define SYSCALL_CLONE 83 -#define SYSCALL_PIPE 84 // TODO! unnamed and named pipes (fifos) SYSCALL_MKNOD +#define SYSCALL_PIPE 84 +// TODO! SYSCALL_MKNOD? char* syscall_get_name(uint32_t num); uint32_t syscall_generic(uint32_t nr,uint32_t p1, uint32_t p2, uint32_t p3, uint32_t pid); |