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reorder syscall by function

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master
WangRunji 6 years ago
parent d8147bd955
commit b0a1614b75
3 changed files with 135 additions and 245 deletions
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3
kernel/Makefile
Unescape View File

@ -125,6 +125,7 @@ endif
else ifeq ($(arch), riscv32)
qemu_opts += \
-machine virt \
-serial mon:stdio \
-kernel ../tools/opensbi/virt_rv32.elf \
-device loader,addr=0x80400000,file=$(kernel_img) \
-drive file=$(SFSIMG),format=qcow2,id=sfs \
@ -137,11 +138,13 @@ else ifeq ($(arch), riscv64)
ifeq ($(board), u540)
qemu_opts += \
-machine virt \
-serial mon:stdio \
-kernel ../tools/opensbi/fu540.elf \
-device loader,addr=0x80200000,file=$(kernel_img)
else
qemu_opts += \
-machine virt \
-serial mon:stdio \
-kernel ../tools/opensbi/virt_rv64.elf \
-device loader,addr=0x80200000,file=$(kernel_img) \
-drive file=$(SFSIMG),format=qcow2,id=sfs \

369
kernel/src/syscall/mod.rs
Unescape View File

@ -37,7 +37,7 @@ mod time;
#[deny(unreachable_patterns)]
pub fn syscall(id: usize, args: [usize; 6], tf: &mut TrapFrame) -> isize {
let cid = cpu::id();
let pid = { process().pid.clone() };
let pid = process().pid.clone();
let tid = processor().tid();
if !pid.is_init() {
// we trust pid 0 process
@ -48,50 +48,85 @@ pub fn syscall(id: usize, args: [usize; 6], tf: &mut TrapFrame) -> isize {
// See https://filippo.io/linux-syscall-table/
// And https://fedora.juszkiewicz.com.pl/syscalls.html.
let ret = match id {
// 0
// file
SYS_READ => sys_read(args[0], args[1] as *mut u8, args[2]),
SYS_WRITE => sys_write(args[0], args[1] as *const u8, args[2]),
SYS_OPENAT => sys_openat(args[0], args[1] as *const u8, args[2], args[3]),
SYS_CLOSE => sys_close(args[0]),
SYS_FSTAT => sys_fstat(args[0], args[1] as *mut Stat),
SYS_NEWFSTATAT => sys_fstatat(args[0], args[1] as *const u8, args[2] as *mut Stat, args[3]),
SYS_LSEEK => sys_lseek(args[0], args[1] as i64, args[2] as u8),
SYS_MMAP => sys_mmap(args[0], args[1], args[2], args[3], args[4], args[5]),
// 10
SYS_MPROTECT => sys_mprotect(args[0], args[1], args[2]),
SYS_MUNMAP => sys_munmap(args[0], args[1]),
SYS_BRK => {
warn!("sys_brk is unimplemented, return -1");
Err(SysError::ENOMEM)
}
SYS_RT_SIGACTION => {
warn!("sys_sigaction is unimplemented");
Ok(0)
}
SYS_RT_SIGPROCMASK => {
warn!("sys_sigprocmask is unimplemented");
Ok(0)
}
SYS_IOCTL => sys_ioctl(args[0], args[1], args[2], args[3], args[4]),
SYS_PREAD64 => sys_pread(args[0], args[1] as *mut u8, args[2], args[3]),
SYS_PWRITE64 => sys_pwrite(args[0], args[1] as *const u8, args[2], args[3]),
SYS_READV => sys_readv(args[0], args[1] as *const IoVec, args[2]),
// 20
SYS_WRITEV => sys_writev(args[0], args[1] as *const IoVec, args[2]),
SYS_SCHED_YIELD => sys_yield(),
SYS_MADVISE => {
warn!("sys_madvise is unimplemented");
Ok(0)
}
SYS_NANOSLEEP => sys_nanosleep(args[0] as *const TimeSpec),
SYS_SETITIMER => {
warn!("sys_setitimer is unimplemented");
Ok(0)
}
SYS_GETPID => sys_getpid(),
// 40
SYS_SENDFILE => sys_sendfile(args[0], args[1], args[2] as *mut usize, args[3]),
SYS_FCNTL => unimplemented("fcntl", Ok(0)),
SYS_FLOCK => unimplemented("flock", Ok(0)),
SYS_FSYNC => sys_fsync(args[0]),
SYS_FDATASYNC => sys_fdatasync(args[0]),
SYS_TRUNCATE => sys_truncate(args[0] as *const u8, args[1]),
SYS_FTRUNCATE => sys_ftruncate(args[0], args[1]),
SYS_GETDENTS64 => sys_getdents64(args[0], args[1] as *mut LinuxDirent64, args[2]),
SYS_GETCWD => sys_getcwd(args[0] as *mut u8, args[1]),
SYS_CHDIR => sys_chdir(args[0] as *const u8),
SYS_RENAMEAT => sys_renameat(args[0], args[1] as *const u8, args[2], args[3] as *const u8),
SYS_MKDIRAT => sys_mkdirat(args[0], args[1] as *const u8, args[2]),
SYS_LINKAT => sys_linkat(
args[0],
args[1] as *const u8,
args[2],
args[3] as *const u8,
args[4],
),
SYS_UNLINKAT => sys_unlinkat(args[0], args[1] as *const u8, args[2]),
SYS_SYMLINKAT => unimplemented("symlinkat", Err(SysError::EACCES)),
SYS_READLINKAT => {
sys_readlinkat(args[0], args[1] as *const u8, args[2] as *mut u8, args[3])
}
SYS_FCHMOD => unimplemented("fchmod", Ok(0)),
SYS_FCHMODAT => unimplemented("fchmodat", Ok(0)),
SYS_FCHOWN => unimplemented("fchown", Ok(0)),
SYS_FCHOWNAT => unimplemented("fchownat", Ok(0)),
SYS_FACCESSAT => sys_faccessat(args[0], args[1] as *const u8, args[2], args[3]),
SYS_DUP3 => sys_dup2(args[0], args[1]), // TODO: handle `flags`
SYS_PIPE2 => sys_pipe(args[0] as *mut u32), // TODO: handle `flags`
SYS_UTIMENSAT => unimplemented("utimensat", Ok(0)),
// io multiplexing
SYS_PPOLL => sys_ppoll(args[0] as *mut PollFd, args[1], args[2] as *const TimeSpec), // ignore sigmask
SYS_EPOLL_CREATE1 => unimplemented("epoll_create1", Err(SysError::ENOSYS)),
// file system
SYS_STATFS => unimplemented("statfs", Err(SysError::EACCES)),
SYS_FSTATFS => unimplemented("fstatfs", Err(SysError::EACCES)),
SYS_SYNC => sys_sync(),
SYS_MOUNT => unimplemented("mount", Err(SysError::EACCES)),
SYS_UMOUNT2 => unimplemented("umount2", Err(SysError::EACCES)),
// memory
SYS_BRK => unimplemented("brk", Err(SysError::ENOMEM)),
SYS_MMAP => sys_mmap(args[0], args[1], args[2], args[3], args[4], args[5]),
SYS_MPROTECT => sys_mprotect(args[0], args[1], args[2]),
SYS_MUNMAP => sys_munmap(args[0], args[1]),
SYS_MADVISE => unimplemented("madvise", Ok(0)),
// signal
SYS_RT_SIGACTION => unimplemented("sigaction", Ok(0)),
SYS_RT_SIGPROCMASK => unimplemented("sigprocmask", Ok(0)),
SYS_SIGALTSTACK => unimplemented("sigaltstack", Ok(0)),
SYS_KILL => sys_kill(args[0], args[1]),
// schedule
SYS_SCHED_YIELD => sys_yield(),
SYS_SCHED_GETAFFINITY => sys_sched_getaffinity(args[0], args[1], args[2] as *mut u32),
// socket
SYS_SOCKET => sys_socket(args[0], args[1], args[2]),
SYS_CONNECT => sys_connect(args[0], args[1] as *const SockAddr, args[2]),
SYS_ACCEPT => sys_accept(args[0], args[1] as *mut SockAddr, args[2] as *mut u32),
SYS_ACCEPT4 => sys_accept(args[0], args[1] as *mut SockAddr, args[2] as *mut u32), // use accept for accept4
SYS_SENDTO => sys_sendto(
args[0],
args[1] as *const u8,
@ -112,7 +147,6 @@ pub fn syscall(id: usize, args: [usize; 6], tf: &mut TrapFrame) -> isize {
SYS_RECVMSG => sys_recvmsg(args[0], args[1] as *mut MsgHdr, args[2]),
SYS_SHUTDOWN => sys_shutdown(args[0], args[1]),
SYS_BIND => sys_bind(args[0], args[1] as *const SockAddr, args[2]),
// 50
SYS_LISTEN => sys_listen(args[0], args[1]),
SYS_GETSOCKNAME => sys_getsockname(args[0], args[1] as *mut SockAddr, args[2] as *mut u32),
SYS_GETPEERNAME => sys_getpeername(args[0], args[1] as *mut SockAddr, args[2] as *mut u32),
@ -124,6 +158,8 @@ pub fn syscall(id: usize, args: [usize; 6], tf: &mut TrapFrame) -> isize {
args[3] as *mut u8,
args[4] as *mut u32,
),
// process
SYS_CLONE => sys_clone(
args[0],
args[1],
@ -138,196 +174,73 @@ pub fn syscall(id: usize, args: [usize; 6], tf: &mut TrapFrame) -> isize {
args[2] as *const *const u8,
tf,
),
// 60
SYS_EXIT => sys_exit(args[0] as usize),
SYS_EXIT_GROUP => sys_exit_group(args[0]),
SYS_WAIT4 => sys_wait4(args[0] as isize, args[1] as *mut i32), // TODO: wait4
SYS_KILL => sys_kill(args[0], args[1]),
SYS_UNAME => sys_uname(args[0] as *mut u8),
SYS_FCNTL => {
warn!("sys_fcntl is unimplemented");
Ok(0)
}
SYS_FLOCK => {
warn!("sys_flock is unimplemented");
Ok(0)
}
SYS_FSYNC => sys_fsync(args[0]),
SYS_FDATASYNC => sys_fdatasync(args[0]),
SYS_TRUNCATE => sys_truncate(args[0] as *const u8, args[1]),
SYS_FTRUNCATE => sys_ftruncate(args[0], args[1]),
SYS_GETCWD => sys_getcwd(args[0] as *mut u8, args[1]),
// 80
SYS_CHDIR => sys_chdir(args[0] as *const u8),
SYS_FCHMOD => {
warn!("sys_fchmod is unimplemented");
Ok(0)
}
SYS_FCHOWN => {
warn!("sys_fchown is unimplemented");
Ok(0)
}
SYS_UMASK => {
warn!("sys_umask is unimplemented");
Ok(0o777)
}
SYS_GETTIMEOFDAY => sys_gettimeofday(args[0] as *mut TimeVal, args[1] as *const u8),
// SYS_GETRLIMIT => sys_getrlimit(),
SYS_GETRUSAGE => sys_getrusage(args[0], args[1] as *mut RUsage),
SYS_SYSINFO => sys_sysinfo(args[0] as *mut SysInfo),
SYS_TIMES => sys_times(args[0] as *mut Tms),
SYS_GETUID => {
warn!("sys_getuid is unimplemented");
Ok(0)
}
SYS_GETGID => {
warn!("sys_getgid is unimplemented");
Ok(0)
}
SYS_SETUID => {
warn!("sys_setuid is unimplemented");
Ok(0)
}
SYS_GETEUID => {
warn!("sys_geteuid is unimplemented");
Ok(0)
}
SYS_GETEGID => {
warn!("sys_getegid is unimplemented");
Ok(0)
}
SYS_SETPGID => {
warn!("sys_setpgid is unimplemented");
Ok(0)
}
// 110
SYS_GETPPID => sys_getppid(),
SYS_SETSID => {
warn!("sys_setsid is unimplemented");
Ok(0)
}
SYS_GETPGID => {
warn!("sys_getpgid is unimplemented");
Ok(0)
}
SYS_GETGROUPS => {
warn!("sys_getgroups is unimplemented");
Ok(0)
}
SYS_SETGROUPS => {
warn!("sys_setgroups is unimplemented");
Ok(0)
}
SYS_SIGALTSTACK => {
warn!("sys_sigaltstack is unimplemented");
Ok(0)
}
SYS_STATFS => {
warn!("statfs is unimplemented");
Err(SysError::EACCES)
}
SYS_FSTATFS => {
warn!("fstatfs is unimplemented");
Err(SysError::EACCES)
}
SYS_SETPRIORITY => sys_set_priority(args[0]),
SYS_PRCTL => {
warn!("prctl is unimplemented");
Ok(0)
}
// SYS_SETRLIMIT => sys_setrlimit(),
SYS_SYNC => sys_sync(),
SYS_MOUNT => {
warn!("mount is unimplemented");
Err(SysError::EACCES)
}
SYS_UMOUNT2 => {
warn!("umount2 is unimplemented");
Err(SysError::EACCES)
}
SYS_REBOOT => sys_reboot(
args[0] as u32,
args[1] as u32,
args[2] as u32,
args[3] as *const u8,
),
SYS_GETTID => sys_gettid(),
SYS_SET_TID_ADDRESS => unimplemented("set_tid_address", Ok(thread::current().id())),
SYS_FUTEX => sys_futex(
args[0],
args[1] as u32,
args[2] as i32,
args[3] as *const TimeSpec,
),
SYS_SCHED_GETAFFINITY => sys_sched_getaffinity(args[0], args[1], args[2] as *mut u32),
SYS_GETDENTS64 => sys_getdents64(args[0], args[1] as *mut LinuxDirent64, args[2]),
SYS_SET_TID_ADDRESS => {
warn!("sys_set_tid_address is unimplemented");
Ok(thread::current().id())
}
// time
SYS_NANOSLEEP => sys_nanosleep(args[0] as *const TimeSpec),
SYS_SETITIMER => unimplemented("setitimer", Ok(0)),
SYS_GETTIMEOFDAY => sys_gettimeofday(args[0] as *mut TimeVal, args[1] as *const u8),
SYS_CLOCK_GETTIME => sys_clock_gettime(args[0], args[1] as *mut TimeSpec),
SYS_EXIT_GROUP => sys_exit_group(args[0]),
SYS_OPENAT => sys_openat(args[0], args[1] as *const u8, args[2], args[3]),
SYS_MKDIRAT => sys_mkdirat(args[0], args[1] as *const u8, args[2]),
// SYS_MKNODAT => sys_mknod(),
// 260
SYS_FCHOWNAT => {
warn!("sys_fchownat is unimplemented");
Ok(0)
}
SYS_NEWFSTATAT => sys_fstatat(args[0], args[1] as *const u8, args[2] as *mut Stat, args[3]),
SYS_UNLINKAT => sys_unlinkat(args[0], args[1] as *const u8, args[2]),
SYS_RENAMEAT => sys_renameat(args[0], args[1] as *const u8, args[2], args[3] as *const u8),
SYS_LINKAT => sys_linkat(
args[0],
args[1] as *const u8,
args[2],
args[3] as *const u8,
args[4],
),
SYS_SYMLINKAT => Err(SysError::EACCES),
SYS_READLINKAT => {
sys_readlinkat(args[0], args[1] as *const u8, args[2] as *mut u8, args[3])
}
SYS_FCHMODAT => {
warn!("sys_fchmodat is unimplemented");
Ok(0)
}
SYS_FACCESSAT => sys_faccessat(args[0], args[1] as *const u8, args[2], args[3]),
SYS_PPOLL => sys_ppoll(args[0] as *mut PollFd, args[1], args[2] as *const TimeSpec), // ignore sigmask
// 280
SYS_UTIMENSAT => {
warn!("sys_utimensat is unimplemented");
Ok(0)
}
SYS_ACCEPT4 => sys_accept(args[0], args[1] as *mut SockAddr, args[2] as *mut u32), // use accept for accept4
SYS_EPOLL_CREATE1 => {
warn!("sys_epoll_create1 is unimplemented");
Err(SysError::ENOSYS)
}
SYS_DUP3 => sys_dup2(args[0], args[1]), // TODO: handle `flags`
SYS_PIPE2 => sys_pipe(args[0] as *mut u32), // TODO: handle `flags`
// system
SYS_GETPID => sys_getpid(),
SYS_GETTID => sys_gettid(),
SYS_UNAME => sys_uname(args[0] as *mut u8),
SYS_UMASK => unimplemented("umask", Ok(0o777)),
// SYS_GETRLIMIT => sys_getrlimit(),
// SYS_SETRLIMIT => sys_setrlimit(),
SYS_GETRUSAGE => sys_getrusage(args[0], args[1] as *mut RUsage),
SYS_SYSINFO => sys_sysinfo(args[0] as *mut SysInfo),
SYS_TIMES => sys_times(args[0] as *mut Tms),
SYS_GETUID => unimplemented("getuid", Ok(0)),
SYS_GETGID => unimplemented("getgid", Ok(0)),
SYS_SETUID => unimplemented("setuid", Ok(0)),
SYS_GETEUID => unimplemented("geteuid", Ok(0)),
SYS_GETEGID => unimplemented("getegid", Ok(0)),
SYS_SETPGID => unimplemented("setpgid", Ok(0)),
SYS_GETPPID => sys_getppid(),
SYS_SETSID => unimplemented("setsid", Ok(0)),
SYS_GETPGID => unimplemented("getpgid", Ok(0)),
SYS_GETGROUPS => unimplemented("getgroups", Ok(0)),
SYS_SETGROUPS => unimplemented("setgroups", Ok(0)),
SYS_SETPRIORITY => sys_set_priority(args[0]),
SYS_PRCTL => unimplemented("prctl", Ok(0)),
SYS_PRLIMIT64 => sys_prlimit64(
args[0],
args[1],
args[2] as *const RLimit,
args[3] as *mut RLimit,
),
// custom temporary syscall
SYS_REBOOT => sys_reboot(
args[0] as u32,
args[1] as u32,
args[2] as u32,
args[3] as *const u8,
),
// custom
SYS_MAP_PCI_DEVICE => sys_map_pci_device(args[0], args[1]),
SYS_GET_PADDR => sys_get_paddr(args[0] as *const u64, args[1] as *mut u64, args[2]),
_ => {
#[cfg(target_arch = "x86_64")]
let x86_64_ret = x86_64_syscall(id, args, tf);
#[cfg(not(target_arch = "x86_64"))]
let x86_64_ret = None;
#[cfg(target_arch = "mips")]
let mips_ret = mips_syscall(id, args, tf);
#[cfg(not(target_arch = "mips"))]
let mips_ret = None;
if let Some(ret) = x86_64_ret {
ret
} else if let Some(ret) = mips_ret {
let ret = match () {
#[cfg(target_arch = "x86_64")]
() => x86_64_syscall(id, args, tf),
#[cfg(target_arch = "mips")]
() => mips_syscall(id, args, tf),
#[cfg(all(not(target_arch = "x86_64"), not(target_arch = "mips")))]
() => None,
};
if let Some(ret) = ret {
ret
} else {
error!("unknown syscall id: {}, args: {:x?}", id, args);
@ -348,6 +261,11 @@ pub fn syscall(id: usize, args: [usize; 6], tf: &mut TrapFrame) -> isize {
}
}
fn unimplemented(name: &str, ret: SysResult) -> SysResult {
warn!("{} is unimplemented", name);
ret
}
#[cfg(target_arch = "mips")]
fn mips_syscall(id: usize, args: [usize; 6], tf: &mut TrapFrame) -> Option<SysResult> {
let ret = match id {
@ -372,18 +290,7 @@ fn mips_syscall(id: usize, args: [usize; 6], tf: &mut TrapFrame) -> Option<SysRe
Err(err) => Err(err),
}
}
SYS_GETPGID => {
warn!("sys_getpgid is unimplemented");
Ok(0)
}
SYS_SETPGID => {
warn!("sys_setpgid is unimplemented");
Ok(0)
}
SYS_FCNTL64 => {
warn!("sys_fcntl64 is unimplemented");
Ok(0)
}
SYS_FCNTL64 => unimplemented("fcntl64", Ok(0)),
SYS_SET_THREAD_AREA => {
info!("set_thread_area: tls: 0x{:x}", args[0]);
extern "C" {
@ -396,9 +303,7 @@ fn mips_syscall(id: usize, args: [usize; 6], tf: &mut TrapFrame) -> Option<SysRe
}
Ok(0)
}
_ => {
return None;
}
_ => return None,
};
Some(ret)
}
@ -420,37 +325,21 @@ fn x86_64_syscall(id: usize, args: [usize; 6], tf: &mut TrapFrame) -> Option<Sys
args[4] as *const TimeVal,
),
SYS_DUP2 => sys_dup2(args[0], args[1]),
SYS_ALARM => {
warn!("sys_alarm is unimplemented");
Ok(0)
}
SYS_ALARM => unimplemented("alarm", Ok(0)),
SYS_FORK => sys_fork(tf),
// use fork for vfork
SYS_VFORK => sys_fork(tf),
SYS_VFORK => sys_fork(tf), // use fork for vfork
SYS_RENAME => sys_rename(args[0] as *const u8, args[1] as *const u8),
SYS_MKDIR => sys_mkdir(args[0] as *const u8, args[1]),
SYS_RMDIR => sys_rmdir(args[0] as *const u8),
SYS_LINK => sys_link(args[0] as *const u8, args[1] as *const u8),
SYS_UNLINK => sys_unlink(args[0] as *const u8),
SYS_READLINK => sys_readlink(args[0] as *const u8, args[1] as *mut u8, args[2]),
// 90
SYS_CHMOD => {
warn!("sys_chmod is unimplemented");
Ok(0)
}
SYS_CHOWN => {
warn!("sys_chown is unimplemented");
Ok(0)
}
SYS_CHMOD => unimplemented("chmod", Ok(0)),
SYS_CHOWN => unimplemented("chown", Ok(0)),
SYS_ARCH_PRCTL => sys_arch_prctl(args[0] as i32, args[1], tf),
SYS_TIME => sys_time(args[0] as *mut u64),
SYS_EPOLL_CREATE => {
warn!("sys_epoll_create is unimplemented");
Err(SysError::ENOSYS)
}
_ => {
return None;
}
SYS_EPOLL_CREATE => unimplemented("epoll_create", Err(SysError::ENOSYS)),
_ => return None,
};
Some(ret)
}

8
kernel/src/syscall/time.rs
Unescape View File

@ -147,18 +147,16 @@ pub fn sys_getrusage(who: usize, rusage: *mut RUsage) -> SysResult {
Ok(0)
}
#[repr(C)]
#[derive(Debug, Copy, Clone)]
pub struct Tms {
tms_utime: u64, /* user time */
tms_utime: u64, /* user time */
tms_stime: u64, /* system time */
tms_cutime: u64, /* user time of children */
tms_cstime: u64, /* system time of children */
}
pub fn sys_times(buf:*mut Tms)-> SysResult {
pub fn sys_times(buf: *mut Tms) -> SysResult {
info!("times: buf: {:?}", buf);
let proc = process();
proc.vm.check_write_ptr(buf)?;
@ -175,4 +173,4 @@ pub fn sys_times(buf:*mut Tms)-> SysResult {
unsafe { *buf = new_buf };
Ok(tick as usize)
}
}

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