diff options
| -rw-r--r-- | src/kernel/syscalls.c | 33 |
1 files changed, 23 insertions, 10 deletions
diff --git a/src/kernel/syscalls.c b/src/kernel/syscalls.c index 540611e..0d18af8 100644 --- a/src/kernel/syscalls.c +++ b/src/kernel/syscalls.c @@ -292,29 +292,42 @@ int _syscall(int num, int a, int b, int c, int d) { switch (num) { case _SYSCALL_EXIT: _syscall_exit(a); + // _syscall_exit doesn't exit case _SYSCALL_AWAIT: - return _syscall_await(); + _syscall_await(); + break; case _SYSCALL_FORK: - return _syscall_fork(a, (userptr_t)b); + _syscall_fork(a, (userptr_t)b); + break; case _SYSCALL_OPEN: - return _syscall_open((userptr_t)a, b); + _syscall_open((userptr_t)a, b); + break; case _SYSCALL_MOUNT: - return _syscall_mount(a, (userptr_t)b, c); + _syscall_mount(a, (userptr_t)b, c); + break; case _SYSCALL_READ: - return _syscall_read(a, (userptr_t)b, c, d); + _syscall_read(a, (userptr_t)b, c, d); + break; case _SYSCALL_WRITE: - return _syscall_write(a, (userptr_t)b, c, d); + _syscall_write(a, (userptr_t)b, c, d); + break; case _SYSCALL_CLOSE: - return _syscall_close(a); + _syscall_close(a); + break; case _SYSCALL_FS_WAIT: - return _syscall_fs_wait((userptr_t)a, b, (userptr_t)c); + _syscall_fs_wait((userptr_t)a, b, (userptr_t)c); + break; case _SYSCALL_FS_RESPOND: - return _syscall_fs_respond((userptr_t)a, b); + _syscall_fs_respond((userptr_t)a, b); + break; case _SYSCALL_MEMFLAG: _syscall_memflag((userptr_t)a, b, c); - return -1; // unused anyways + break; default: kprintf("unknown syscall "); panic_unimplemented(); // TODO fail gracefully } + + /* return value is unused. execution continues in sysenter_stage2 */ + return -1; } |