Initial import of ViperOS
This commit is contained in:
Viper
470
VKernel/Kernel/intr/syscall.py
Normal file
470
VKernel/Kernel/intr/syscall.py
Normal file
@@ -0,0 +1,470 @@
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import drivers.serial.uart.serial as serial
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import services.desktop as desktop
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import drivers.fs.fat32.fat32 as fat32
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import drivers.fs.fat32.fat32_types as fat32_types
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import sched.sched as sched
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import sched.process as process
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import viperlib
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import string
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import mm.mm as mm
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import paging.paging as paging
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import execrunner.elf as elf
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import t, c
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CREATE_WINDOW: t.CDefine = 1
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DRAW_TEXT: t.CDefine = 2
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EXIT: t.CDefine = 3
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OPEN: t.CDefine = 4
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CLOSE: t.CDefine = 5
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READ: t.CDefine = 6
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WRITE: t.CDefine = 7
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SEEK: t.CDefine = 8
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TELL: t.CDefine = 9
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SIZE: t.CDefine = 10
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MKDIR: t.CDefine = 11
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REMOVE: t.CDefine = 12
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OPENDIR: t.CDefine = 13
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READDIR: t.CDefine = 14
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CLOSEDIR: t.CDefine = 15
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STAT: t.CDefine = 16
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WAIT_WINDOW: t.CDefine = 17
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SERIAL_PUTS: t.CDefine = 18
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LOAD_SO: t.CDefine = 19
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SO_CALL1: t.CDefine = 20
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GET_WINBUF: t.CDefine = 21
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WIN_FLUSH: t.CDefine = 22
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POLL_EVENT: t.CDefine = 23
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SET_CURSOR: t.CDefine = 24
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YIELD: t.CDefine = 25
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SET_TITLE: t.CDefine = 26
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SET_GEOMETRY: t.CDefine = 27
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SPAWN: t.CDefine = 28
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MMAP: t.CDefine = 29
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MUNMAP: t.CDefine = 30
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SET_RESIZABLE: t.CDefine = 31
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GET_WIN_SIZE: t.CDefine = 32
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THREAD_CREATE: t.CDefine = 33
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IA32_EFER: t.CDefine = 0xC0000080
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IA32_STAR: t.CDefine = 0xC0000081
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IA32_LSTAR: t.CDefine = 0xC0000082
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IA32_FMASK: t.CDefine = 0xC0000084
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def wrmsr(msr: t.CUInt32T, val: t.CUInt64T):
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lo: t.CUInt32T = t.CUInt32T(val & 0xFFFFFFFF)
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hi: t.CUInt32T = t.CUInt32T(val >> 32)
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c.Asm(f"""mov ecx, {c.AsmInp(msr, t.ASM_DESCR.REG_ANY)}
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mov eax, {c.AsmInp(lo, t.ASM_DESCR.REG_ANY)}
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mov edx, {c.AsmInp(hi, t.ASM_DESCR.REG_ANY)}
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wrmsr""",
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op=[t.ASM_DESCR.CLOBBER_RCX, t.ASM_DESCR.CLOBBER_RAX, t.ASM_DESCR.CLOBBER_RDX])
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def rdmsr(msr: t.CUInt32T) -> t.CUInt64T:
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lo: t.CUInt32T
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hi: t.CUInt32T
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c.Asm(f"""mov ecx, {c.AsmInp(msr, t.ASM_DESCR.REG_ANY)}
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rdmsr""",
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out=[c.AsmOut(lo, t.ASM_DESCR.OUTPUT_REG), c.AsmOut(hi, t.ASM_DESCR.OUTPUT_REG)],
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op=[t.ASM_DESCR.CLOBBER_RCX, t.ASM_DESCR.CLOBBER_RAX, t.ASM_DESCR.CLOBBER_RDX])
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return t.CUInt64T(lo) | (t.CUInt64T(hi) << 32)
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def _current_proc() -> process.Process | t.CPtr:
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return process.ProcessManager.current()
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def _fd_alloc(p: process.Process | t.CPtr) -> t.CInt:
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for i in range(process.PROC_MAX_FDS):
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if not p.fd_used[i]:
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p.fd_used[i] = 1
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return i
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return -1
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def _fd_free(p: process.Process | t.CPtr, fd: t.CInt):
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if fd >= 0 and fd < process.PROC_MAX_FDS:
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p.fd_used[fd] = 0
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p.fd_table[fd] = t.CVoid(0, t.CPtr)
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def _dir_alloc(p: process.Process | t.CPtr) -> t.CInt:
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for i in range(process.PROC_MAX_DIRS):
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if not p.dir_used[i]:
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p.dir_used[i] = 1
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return i
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return -1
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def _dir_free(p: process.Process | t.CPtr, dd: t.CInt):
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if dd >= 0 and dd < process.PROC_MAX_DIRS:
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p.dir_used[dd] = 0
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p.dir_table[dd] = t.CVoid(0, t.CPtr)
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def CREATE_WINDOW(x: t.CInt, y: t.CInt, w: t.CInt, h: t.CInt, title: t.CConst | t.CChar | t.CPtr, style: t.CInt) -> t.CInt:
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desktop.set_app_pid(process.current())
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return desktop.create(x, y, w, h, title, style)
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def DRAW_TEXT(win_id: t.CInt, x: t.CInt, y: t.CInt, text: t.CConst | t.CChar | t.CPtr, color: t.CUInt32T) -> t.CInt:
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return desktop.draw_text(win_id, x, y, text, color)
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def EXIT(code: t.CInt) -> t.CInt:
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serial.puts("[syscall] exit called\n")
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desktop.destroy_by_pid(process.current())
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return 0
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def WAIT_WINDOW(win_id: t.CInt) -> t.CInt:
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while desktop.is_active(win_id):
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sched.Scheduler.try_reschedule()
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return 0
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def SERIAL_PUTS(str_ptr: t.CVoid | t.CPtr) -> t.CInt:
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s: t.CConst | t.CChar | t.CPtr = t.CVoid(str_ptr, t.CPtr)
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serial.puts(s)
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return 0
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_loaded_so_base: t.CVoid | t.CPtr = None
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_loaded_so_path: t.CArray[t.CChar, 64]
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def LOAD_SO(path_ptr: t.CVoid | t.CPtr) -> t.CUInt64T:
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global _loaded_so_base
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path: t.CConst | t.CChar | t.CPtr = t.CVoid(path_ptr, t.CPtr)
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serial.puts("[so] loading: ")
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serial.puts(path)
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serial.puts("\n")
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base: t.CVoid | t.CPtr = elf.load_so(path)
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if base is not None:
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_loaded_so_base = base
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for i in range(63):
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ch: t.CChar = c.Deref(path + i)
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_loaded_so_path[i] = ch
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if ch == 0: break
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_loaded_so_path[63] = 0
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return t.CUInt64T(base)
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return 0
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def SO_CALL1(sym_name_ptr: t.CVoid | t.CPtr, arg1: t.CVoid | t.CPtr) -> t.CInt:
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if _loaded_so_base is None: return -1
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sym_name: t.CConst | t.CChar | t.CPtr = t.CVoid(sym_name_ptr, t.CPtr)
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fn: t.CVoid | t.CPtr = elf.get_so_symbol(_loaded_so_base, sym_name, c.Addr(_loaded_so_path[0]))
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if fn is None:
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serial.puts("[so] symbol not found\n")
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return -2
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c.Asm(f"""mov rdi, {c.AsmInp(arg1, t.ASM_DESCR.REG_ANY)}
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call {c.AsmInp(fn, t.ASM_DESCR.REG_ANY)}""",
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op=[t.ASM_DESCR.CLOBBER_MEMORY, t.ASM_DESCR.CLOBBER_RAX,
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t.ASM_DESCR.CLOBBER_RCX, t.ASM_DESCR.CLOBBER_RDX,
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t.ASM_DESCR.CLOBBER_RDI, t.ASM_DESCR.CLOBBER_RSI,
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t.ASM_DESCR.CLOBBER_R8, t.ASM_DESCR.CLOBBER_R9,
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t.ASM_DESCR.CLOBBER_R10, t.ASM_DESCR.CLOBBER_R11])
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serial.puts("[so] call returned\n")
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return 0
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def GET_WINBUF(win_id: t.CInt) -> t.CUInt64T:
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buf: t.CVoid | t.CPtr = desktop.get_fb(win_id)
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if buf is None:
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return 0
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return t.CUInt64T(buf)
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def WIN_FLUSH(win_id: t.CInt) -> t.CInt:
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desktop.flush(win_id)
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return 0
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def SET_CURSOR(win_id: t.CInt, cursor_t: t.CInt) -> t.CInt:
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desktop.set_cursor_type(win_id, cursor_t)
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return 0
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def OPEN(path_ptr: t.CVoid | t.CPtr, mode: t.CUInt32T) -> t.CInt:
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p: process.Process | t.CPtr = _current_proc()
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path: t.CConst | t.CChar | t.CPtr = t.CVoid(path_ptr, t.CPtr)
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fat32.lock()
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fp: t.CVoid | t.CPtr = fat32.open(path, t.CUInt8T(mode))
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if not fp:
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fat32.unlock()
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return -1
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fd: t.CInt = _fd_alloc(p)
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if fd < 0:
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fat32.close(fp)
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fat32.unlock()
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return -1
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p.fd_table[fd] = fp
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fat32.unlock()
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return fd
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def CLOSE(fd: t.CInt) -> t.CInt:
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p: process.Process | t.CPtr = _current_proc()
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if fd < 0 or fd >= process.PROC_MAX_FDS:
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return t.CInt(fat32_types.FRESULT.FR_INVALID_OBJECT)
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fp: t.CVoid | t.CPtr = p.fd_table[fd]
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if not fp:
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return t.CInt(fat32_types.FRESULT.FR_INVALID_OBJECT)
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fat32.lock()
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res: t.CInt = t.CInt(fat32.close(fp))
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fat32.unlock()
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_fd_free(p, fd)
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return res
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def READ(fd: t.CInt, buf_ptr: t.CVoid | t.CPtr, count: t.CUInt32T) -> t.CInt:
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p: process.Process | t.CPtr = _current_proc()
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if fd < 0 or fd >= process.PROC_MAX_FDS:
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return -1
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fp: t.CVoid | t.CPtr = p.fd_table[fd]
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if not fp:
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return -1
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fat32.lock()
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br: t.CUInt32T = fat32.read(fp, buf_ptr, count)
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fat32.unlock()
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return t.CInt(br)
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def WRITE(fd: t.CInt, buf_ptr: t.CVoid | t.CPtr, count: t.CUInt32T) -> t.CInt:
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p: process.Process | t.CPtr = _current_proc()
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if fd < 0 or fd >= process.PROC_MAX_FDS:
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return -1
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fp: t.CVoid | t.CPtr = p.fd_table[fd]
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if not fp:
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return -1
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fat32.lock()
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bw: t.CUInt32T = fat32.write(fp, buf_ptr, count)
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fat32.unlock()
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return t.CInt(bw)
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def SEEK(fd: t.CInt, offset: t.CUInt32T) -> t.CInt:
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p: process.Process | t.CPtr = _current_proc()
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if fd < 0 or fd >= process.PROC_MAX_FDS:
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return t.CInt(fat32_types.FRESULT.FR_INVALID_OBJECT)
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fp: t.CVoid | t.CPtr = p.fd_table[fd]
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if not fp:
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return t.CInt(fat32_types.FRESULT.FR_INVALID_OBJECT)
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fat32.lock()
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r: t.CInt = t.CInt(fat32.seek(fp, offset))
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fat32.unlock()
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return r
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def TELL(fd: t.CInt) -> t.CUInt32T:
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p: process.Process | t.CPtr = _current_proc()
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if fd < 0 or fd >= process.PROC_MAX_FDS:
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return 0
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fp: t.CVoid | t.CPtr = p.fd_table[fd]
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if not fp:
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return 0
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fat32.lock()
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pos: t.CUInt32T = fat32.tell(fp)
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fat32.unlock()
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return pos
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def fsize(fd: t.CInt) -> t.CUInt32T:
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p: process.Process | t.CPtr = _current_proc()
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if fd < 0 or fd >= process.PROC_MAX_FDS:
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return 0
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fp: t.CVoid | t.CPtr = p.fd_table[fd]
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if not fp:
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return 0
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fat32.lock()
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sz: t.CUInt32T = fat32.size(fp)
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fat32.unlock()
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return sz
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def MKDIR(path_ptr: t.CVoid | t.CPtr) -> t.CInt:
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path: t.CConst | t.CChar | t.CPtr = t.CVoid(path_ptr, t.CPtr)
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fat32.lock()
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r: t.CInt = t.CInt(fat32.mkdir(path))
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fat32.unlock()
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return r
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def REMOVE(path_ptr: t.CVoid | t.CPtr) -> t.CInt:
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path: t.CConst | t.CChar | t.CPtr = t.CVoid(path_ptr, t.CPtr)
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fat32.lock()
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r: t.CInt = t.CInt(fat32.remove(path))
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fat32.unlock()
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return r
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def OPENdir(path_ptr: t.CVoid | t.CPtr) -> t.CInt:
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p: process.Process | t.CPtr = _current_proc()
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path: t.CConst | t.CChar | t.CPtr = t.CVoid(path_ptr, t.CPtr)
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dd: t.CInt = _dir_alloc(p)
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if dd < 0:
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return -1
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dp: fat32_types.dirobj | t.CPtr = c.Addr(p.dir_pool[dd])
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fat32.lock()
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res: t.CInt = t.CInt(fat32.opendir(path, dp))
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fat32.unlock()
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if res != 0:
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_dir_free(p, dd)
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return -1
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p.dir_table[dd] = t.CVoid(t.CUInt64T(dp), t.CPtr)
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return dd
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def READdir(dd: t.CInt, info_ptr: t.CVoid | t.CPtr) -> t.CInt:
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p: process.Process | t.CPtr = _current_proc()
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if dd < 0 or dd >= process.PROC_MAX_DIRS:
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return t.CInt(fat32_types.FRESULT.FR_INVALID_OBJECT)
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dp: t.CVoid | t.CPtr = p.dir_table[dd]
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if not dp:
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return t.CInt(fat32_types.FRESULT.FR_INVALID_OBJECT)
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info: fat32_types.fileinfo | t.CPtr = info_ptr
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fat32.lock()
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r: t.CInt = t.CInt(fat32.readdir(dp, info))
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fat32.unlock()
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return r
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def CLOSEdir(dd: t.CInt) -> t.CInt:
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p: process.Process | t.CPtr = _current_proc()
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if dd < 0 or dd >= process.PROC_MAX_DIRS:
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return t.CInt(fat32_types.FRESULT.FR_INVALID_OBJECT)
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dp: t.CVoid | t.CPtr = p.dir_table[dd]
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if not dp:
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return t.CInt(fat32_types.FRESULT.FR_INVALID_OBJECT)
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fat32.lock()
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fat32.closedir(dp)
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fat32.unlock()
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_dir_free(p, dd)
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return 0
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def STAT(path_ptr: t.CVoid | t.CPtr, info_ptr: t.CVoid | t.CPtr) -> t.CInt:
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path: t.CConst | t.CChar | t.CPtr = t.CVoid(path_ptr, t.CPtr)
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info: fat32_types.fileinfo | t.CPtr = info_ptr
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fat32.lock()
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r: t.CInt = t.CInt(fat32.stat(path, info))
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fat32.unlock()
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return r
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def SPAWN(path_ptr: t.CVoid | t.CPtr, blocking: t.CInt) -> t.CInt:
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path: t.CConst | t.CChar | t.CPtr = t.CVoid(path_ptr, t.CPtr)
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pid: t.CInt = elf.spawn_elf(path)
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if pid < 0:
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return pid
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if blocking:
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p: process.Process | t.CPtr = process.ProcessManager.get_process(pid)
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if p:
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while p.state != process.PROC_DONE:
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sched.Scheduler.try_reschedule()
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return pid
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USER_HEAP_BASE: t.CDefine = 0x20000000
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def MMAP(size: t.CUInt64T) -> t.CUInt64T:
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p: process.Process | t.CPtr = _current_proc()
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if size == 0: return 0
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aligned_size: t.CUInt64T = (size + 4095) & ~t.CUInt64T(4095)
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if p.heap_start == 0:
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p.heap_start = USER_HEAP_BASE
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heap_end: t.CUInt64T = p.heap_start + p.heap_size
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new_end: t.CUInt64T = heap_end + aligned_size
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for va in range(heap_end, new_end, 4096):
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phys_page: t.CVoid | t.CPtr = mm.malloc(4096)
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if phys_page is None: return 0
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paging.MapPage(va, t.CUInt64T(phys_page), paging.PTE_PRESENT | paging.PTE_WRITABLE | paging.PTE_USER)
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p.heap_size = p.heap_size + aligned_size
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return heap_end
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def MUNMAP(ptr: t.CUInt64T, size: t.CUInt64T) -> t.CInt:
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return 0
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def syscall_entry() -> t.CExtern | t.CVoid | t.State: pass
|
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def syscall_handler(num: t.CUInt64T, arg1: t.CUInt64T, arg2: t.CUInt64T, arg3: t.CUInt64T, arg4: t.CUInt64T, arg5: t.CUInt64T, arg6: t.CUInt64T) -> t.CExport | t.CUInt64T:
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n: t.CInt = t.CInt(num)
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if n == CREATE_WINDOW:
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title_ptr: t.CVoid | t.CPtr = t.CVoid(arg5, t.CPtr)
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return t.CUInt64T(CREATE_WINDOW(t.CInt(arg1), t.CInt(arg2), t.CInt(arg3), t.CInt(arg4), title_ptr, t.CInt(arg6)))
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elif n == DRAW_TEXT:
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text_ptr: t.CVoid | t.CPtr = t.CVoid(arg4, t.CPtr)
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return t.CUInt64T(DRAW_TEXT(t.CInt(arg1), t.CInt(arg2), t.CInt(arg3), text_ptr, t.CUInt32T(arg5)))
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elif n == EXIT:
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return t.CUInt64T(EXIT(t.CInt(arg1)))
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elif n == OPEN:
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path_ptr: t.CVoid | t.CPtr = t.CVoid(arg1, t.CPtr)
|
||||
return t.CUInt64T(OPEN(path_ptr, t.CUInt32T(arg2)))
|
||||
elif n == CLOSE:
|
||||
return t.CUInt64T(CLOSE(t.CInt(arg1)))
|
||||
elif n == READ:
|
||||
buf_ptr: t.CVoid | t.CPtr = t.CVoid(arg2, t.CPtr)
|
||||
return t.CUInt64T(READ(t.CInt(arg1), buf_ptr, t.CUInt32T(arg3)))
|
||||
elif n == WRITE:
|
||||
buf_ptr: t.CVoid | t.CPtr = t.CVoid(arg2, t.CPtr)
|
||||
return t.CUInt64T(WRITE(t.CInt(arg1), buf_ptr, t.CUInt32T(arg3)))
|
||||
elif n == SEEK:
|
||||
return t.CUInt64T(SEEK(t.CInt(arg1), t.CUInt32T(arg2)))
|
||||
elif n == TELL:
|
||||
return t.CUInt64T(TELL(t.CInt(arg1)))
|
||||
elif n == SIZE:
|
||||
return t.CUInt64T(fsize(t.CInt(arg1)))
|
||||
elif n == MKDIR:
|
||||
path_ptr: t.CVoid | t.CPtr = t.CVoid(arg1, t.CPtr)
|
||||
return t.CUInt64T(MKDIR(path_ptr))
|
||||
elif n == REMOVE:
|
||||
path_ptr: t.CVoid | t.CPtr = t.CVoid(arg1, t.CPtr)
|
||||
return t.CUInt64T(REMOVE(path_ptr))
|
||||
elif n == OPENDIR:
|
||||
path_ptr: t.CVoid | t.CPtr = t.CVoid(arg1, t.CPtr)
|
||||
return t.CUInt64T(OPENdir(path_ptr))
|
||||
elif n == READDIR:
|
||||
info_ptr: t.CVoid | t.CPtr = t.CVoid(arg2, t.CPtr)
|
||||
return t.CUInt64T(READdir(t.CInt(arg1), info_ptr))
|
||||
elif n == CLOSEDIR:
|
||||
return t.CUInt64T(CLOSEdir(t.CInt(arg1)))
|
||||
elif n == STAT:
|
||||
path_ptr: t.CVoid | t.CPtr = t.CVoid(arg1, t.CPtr)
|
||||
info_ptr: t.CVoid | t.CPtr = t.CVoid(arg2, t.CPtr)
|
||||
return t.CUInt64T(STAT(path_ptr, info_ptr))
|
||||
elif n == WAIT_WINDOW:
|
||||
if t.CInt(arg2) == 1:
|
||||
return t.CUInt64T(desktop.is_active(t.CInt(arg1)))
|
||||
elif t.CInt(arg2) == 2:
|
||||
sched.Scheduler.try_reschedule()
|
||||
return 0
|
||||
return t.CUInt64T(WAIT_WINDOW(t.CInt(arg1)))
|
||||
elif n == SERIAL_PUTS:
|
||||
str_ptr_sp: t.CVoid | t.CPtr = t.CVoid(arg1, t.CPtr)
|
||||
return t.CUInt64T(SERIAL_PUTS(str_ptr_sp))
|
||||
elif n == LOAD_SO:
|
||||
path_ptr_so: t.CVoid | t.CPtr = t.CVoid(arg1, t.CPtr)
|
||||
return LOAD_SO(path_ptr_so)
|
||||
elif n == SO_CALL1:
|
||||
sym_ptr: t.CVoid | t.CPtr = t.CVoid(arg1, t.CPtr)
|
||||
return t.CUInt64T(SO_CALL1(sym_ptr, arg2))
|
||||
elif n == GET_WINBUF:
|
||||
return GET_WINBUF(t.CInt(arg1))
|
||||
elif n == WIN_FLUSH:
|
||||
return t.CUInt64T(WIN_FLUSH(t.CInt(arg1)))
|
||||
elif n == POLL_EVENT:
|
||||
buf_ptr_ev: t.CVoid | t.CPtr = t.CVoid(arg1, t.CPtr)
|
||||
caller_pid_ev: t.CInt = process.current()
|
||||
return t.CUInt64T(desktop.poll_event(buf_ptr_ev, caller_pid_ev))
|
||||
elif n == SET_CURSOR:
|
||||
desktop.set_cursor_type(t.CInt(arg1), t.CInt(arg2))
|
||||
return 0
|
||||
elif n == YIELD:
|
||||
sched.Scheduler.try_reschedule()
|
||||
return 0
|
||||
elif n == SET_TITLE:
|
||||
title_ptr_st: t.CVoid | t.CPtr = t.CVoid(arg2, t.CPtr)
|
||||
return t.CUInt64T(desktop.set_title(t.CInt(arg1), title_ptr_st))
|
||||
elif n == SET_GEOMETRY:
|
||||
return t.CUInt64T(desktop.set_geometry(t.CInt(arg1), t.CInt(arg2), t.CInt(arg3), t.CInt(arg4), t.CInt(arg5)))
|
||||
elif n == SET_RESIZABLE:
|
||||
return t.CUInt64T(desktop.set_resizable(t.CInt(arg1), t.CInt(arg2), t.CInt(arg3)))
|
||||
elif n == GET_WIN_SIZE:
|
||||
return t.CUInt64T(desktop.get_size(t.CInt(arg1)))
|
||||
elif n == SPAWN:
|
||||
path_ptr_sp: t.CVoid | t.CPtr = t.CVoid(arg1, t.CPtr)
|
||||
return t.CUInt64T(SPAWN(path_ptr_sp, t.CInt(arg2)))
|
||||
elif n == MMAP:
|
||||
return MMAP(arg1)
|
||||
elif n == MUNMAP:
|
||||
return t.CUInt64T(MUNMAP(arg1, arg2))
|
||||
elif n == THREAD_CREATE:
|
||||
func_ptr: t.CVoid | t.CPtr = t.CVoid(arg1, t.CPtr)
|
||||
arg_ptr: t.CVoid | t.CPtr = t.CVoid(arg2, t.CPtr)
|
||||
cur_pid: t.CInt = process.current()
|
||||
th: sched.Thread | t.CPtr = sched.Scheduler.create_thread(func_ptr, arg_ptr, cur_pid)
|
||||
if th is None: return t.CUInt64T(0xFFFFFFFFFFFFFFFF)
|
||||
p: process.Process | t.CPtr = process.ProcessManager.get_process(cur_pid)
|
||||
if p:
|
||||
p.addThread(th.tid)
|
||||
return t.CUInt64T(th.tid)
|
||||
return 0
|
||||
|
||||
def init():
|
||||
efer: t.CUInt64T = rdmsr(IA32_EFER)
|
||||
efer = efer | 1
|
||||
wrmsr(IA32_EFER, efer)
|
||||
star_val: t.CUInt64T = (t.CUInt64T(0x08) << 32) | (t.CUInt64T(0x1B) << 48)
|
||||
wrmsr(IA32_STAR, star_val)
|
||||
wrmsr(IA32_LSTAR, t.CUInt64T(syscall_entry))
|
||||
wrmsr(IA32_FMASK, 0x200)
|
||||
serial.puts("[syscall] MSR init done\n")
|
||||
Reference in New Issue
Block a user