TermiNexus
ca72ddbbf7
内核 intr/syscall.vp 与 vpsdk/syscall.vp 各一份 1..34 的 define 表改为同名 enum Syscall。编号口径：与 Linux 同名同号；Linux 有而我们未实现的留空不占号（12 brk / 39 getpid / 84 rmdir / 217 getdents64 / 257 openat … 需要时按号补）。 15 个语义重合的调用直接用 Linux 号：READ 0 / WRITE 1 / OPEN 2 / CLOSE 3 / STAT 4 / SEEK 8 / MMAP 9 / MUNMAP 11 / YIELD 24 / THREAD_CREATE 56(≈clone) / SPAWN 59(≈execve) / THREAD_EXIT 60(exit) / MKDIR 83 / REMOVE 87 / EXIT 231(exit_group)。 其余 19 个（UI 11 个 + SERIAL_PUTS/TELL/SIZE/OPENDIR/READDIR/CLOSEDIR/LOAD_SO/SO_CALL1）暂放 0x1000 起的**临时私有段**，每条带迁移标注：私有能力最终不占 syscall 号、改走 devfs 设备文件；UI 11 个待用户态 explorer（图形壳）接管 framebuffer 与输入后删除。 内核派发链改 n == int(Syscall.X)（n 是 int/i64、成员是 i32，显式 int() 规避未证实的混合宽度比较）；SDK 全部调用点统一为 syscall.Syscall.X；stdlib 的 SYSCALL_MMAP 别名并入 Syscall.MMAP；Terminal 里硬编码的 uint64(18) 改为常量。
124 lines
6.5 KiB
Plaintext
124 lines
6.5 KiB
Plaintext
# ============================================================================
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# 系统调用号表（SDK 侧镜像）。**与 VKernel/Kernel/intr/syscall.vp 的同名 enum 逐条对应**：
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# vpsdk 不允许依赖 VKernel，所以这里是一份必须手工同步的副本 —— 增删/改号/改名两边一起改。
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# 编号口径：与 Linux x86-64 ABI 同名同号；Linux 有而我们未实现的留空不占号；
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# 我们独有的能力不再新增 syscall，最终走 devfs 设备文件或下沉到用户层（见 0x1000+ 段的标注）。
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# ============================================================================
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enum Syscall:
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# ---- Linux 对齐段（号 = Linux x86-64 的号）----
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READ = 0 # read(fd, buf, count)
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WRITE = 1 # write(fd, buf, count)
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OPEN = 2 # open(path, flags)
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CLOSE = 3 # close(fd)
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STAT = 4 # stat(path, info)（结构体仍是本系统的 fileinfo）
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SEEK = 8 # lseek(fd, offset, whence)（whence 目前恒 0 = SEEK_SET）
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MMAP = 9 # mmap(size) → VA（ABI 待向 Linux 的 addr/len/prot/flags/fd/off 靠拢）
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MUNMAP = 11 # munmap(ptr, size)（目前空实现）
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YIELD = 24 # sched_yield()
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THREAD_CREATE = 56 # clone()：建用户线程，返回 tid
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SPAWN = 59 # execve()：加载并运行新 ELF，返回 pid
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THREAD_EXIT = 60 # exit()：退役当前线程
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MKDIR = 83 # mkdir(path)
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REMOVE = 87 # unlink(path)
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EXIT = 231 # exit_group()：退役当前线程 + 拆掉本 pid 的窗口
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# ---- 临时私有段（0x1000+）：Linux 无对应，且**逐条都会被消掉** ----
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# 目标形态：私有能力不占 syscall 号 → 改 devfs 设备文件；UI 11 个 → 由用户态
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# explorer（图形壳）接管 framebuffer 与输入后删除。当前保留只为让现有 app 还能跑。
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SERIAL_PUTS = 0x1000 # TODO(devfs)：改为 write(/dev/serial0)
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TELL = 0x1001 # TODO(linux)：可由 lseek(fd, 0, SEEK_CUR) 表达
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SIZE = 0x1002 # TODO(linux)：可由 fstat 表达
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OPENDIR = 0x1003 # TODO(linux)：openat(O_DIRECTORY) + getdents64
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READDIR = 0x1004 # TODO(linux)：getdents64
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CLOSEDIR = 0x1005 # TODO(linux)：close
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LOAD_SO = 0x1006 # TODO(用户层)：动态库加载下沉
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SO_CALL1 = 0x1007 # TODO(用户层)：同上
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WAIT_WINDOW = 0x1008 # TODO(explorer)：UI
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CREATE_WINDOW = 0x1009 # TODO(explorer)：UI
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DRAW_TEXT = 0x100A # TODO(explorer)：UI
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GET_WINBUF = 0x100B # TODO(explorer)：UI
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WIN_FLUSH = 0x100C # TODO(explorer)：UI
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POLL_EVENT = 0x100D # TODO(explorer)：UI
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SET_CURSOR = 0x100E # TODO(explorer)：UI
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SET_TITLE = 0x100F # TODO(explorer)：UI
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SET_GEOMETRY = 0x1010 # TODO(explorer)：UI
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SET_RESIZABLE = 0x1011 # TODO(explorer)：UI
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GET_WIN_SIZE = 0x1012 # TODO(explorer)：UI
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def _syscall0(num: uint64) -> uint64:
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ret: uint64
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__asm__(f"""mov rax, {asminp(num, ASM_DESCR.REG_ANY)}
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syscall""",
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out=[asmout(ret, ASM_DESCR.OUTPUT_REG)],
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op=[ASM_DESCR.CLOBBER_MEMORY, ASM_DESCR.CLOBBER_RCX,
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ASM_DESCR.CLOBBER_R11])
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return ret
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def _syscall1(num: uint64, a1: uint64) -> uint64:
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ret: uint64
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__asm__(f"""mov rdi, {asminp(a1, ASM_DESCR.REG_ANY)}
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mov rax, {asminp(num, ASM_DESCR.REG_ANY)}
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syscall""",
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out=[asmout(ret, ASM_DESCR.OUTPUT_REG)],
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op=[ASM_DESCR.CLOBBER_MEMORY, ASM_DESCR.CLOBBER_RCX,
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ASM_DESCR.CLOBBER_R11, ASM_DESCR.CLOBBER_RDI])
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return ret
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def _syscall2(num: uint64, a1: uint64, a2: uint64) -> uint64:
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ret: uint64
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__asm__(f"""mov rdi, {asminp(a1, ASM_DESCR.REG_ANY)}
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mov rsi, {asminp(a2, ASM_DESCR.REG_ANY)}
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mov rax, {asminp(num, ASM_DESCR.REG_ANY)}
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syscall""",
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out=[asmout(ret, ASM_DESCR.OUTPUT_REG)],
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op=[ASM_DESCR.CLOBBER_MEMORY, ASM_DESCR.CLOBBER_RCX,
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ASM_DESCR.CLOBBER_R11, ASM_DESCR.CLOBBER_RDI,
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ASM_DESCR.CLOBBER_RSI])
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return ret
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def _syscall3(num: uint64, a1: uint64, a2: uint64, a3: uint64) -> uint64:
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ret: uint64
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__asm__(f"""mov rdi, {asminp(a1, ASM_DESCR.REG_ANY)}
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mov rsi, {asminp(a2, ASM_DESCR.REG_ANY)}
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mov rdx, {asminp(a3, ASM_DESCR.REG_ANY)}
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mov rax, {asminp(num, ASM_DESCR.REG_ANY)}
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syscall""",
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out=[asmout(ret, ASM_DESCR.OUTPUT_REG)],
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op=[ASM_DESCR.CLOBBER_MEMORY, ASM_DESCR.CLOBBER_RCX,
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ASM_DESCR.CLOBBER_R11, ASM_DESCR.CLOBBER_RDI,
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ASM_DESCR.CLOBBER_RSI, ASM_DESCR.CLOBBER_RDX])
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return ret
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def _syscall5(num: uint64, a1: uint64, a2: uint64, a3: uint64, a4: uint64, a5: uint64) -> uint64:
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ret: uint64
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__asm__(f"""mov rdi, {asminp(a1, ASM_DESCR.REG_ANY)}
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mov rsi, {asminp(a2, ASM_DESCR.REG_ANY)}
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mov rdx, {asminp(a3, ASM_DESCR.REG_ANY)}
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mov r10, {asminp(a4, ASM_DESCR.REG_ANY)}
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mov r8, {asminp(a5, ASM_DESCR.REG_ANY)}
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mov rax, {asminp(num, ASM_DESCR.REG_ANY)}
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syscall""",
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out=[asmout(ret, ASM_DESCR.OUTPUT_REG)],
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op=[ASM_DESCR.CLOBBER_MEMORY, ASM_DESCR.CLOBBER_RCX,
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ASM_DESCR.CLOBBER_R11, ASM_DESCR.CLOBBER_RDI,
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ASM_DESCR.CLOBBER_RSI, ASM_DESCR.CLOBBER_RDX,
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ASM_DESCR.CLOBBER_R10, ASM_DESCR.CLOBBER_R8])
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return ret
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def _syscall6(num: uint64, a1: uint64, a2: uint64, a3: uint64, a4: uint64, a5: uint64, a6: uint64) -> uint64:
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ret: uint64
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__asm__(f"""mov rdi, {asminp(a1, ASM_DESCR.REG_ANY)}
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mov rsi, {asminp(a2, ASM_DESCR.REG_ANY)}
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mov rdx, {asminp(a3, ASM_DESCR.REG_ANY)}
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mov r10, {asminp(a4, ASM_DESCR.REG_ANY)}
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mov r8, {asminp(a5, ASM_DESCR.REG_ANY)}
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mov r9, {asminp(a6, ASM_DESCR.REG_ANY)}
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mov rax, {asminp(num, ASM_DESCR.REG_ANY)}
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syscall""",
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out=[asmout(ret, ASM_DESCR.OUTPUT_REG)],
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op=[ASM_DESCR.CLOBBER_MEMORY, ASM_DESCR.CLOBBER_RCX,
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ASM_DESCR.CLOBBER_R11, ASM_DESCR.CLOBBER_RDI,
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ASM_DESCR.CLOBBER_RSI, ASM_DESCR.CLOBBER_RDX,
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ASM_DESCR.CLOBBER_R10, ASM_DESCR.CLOBBER_R8,
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ASM_DESCR.CLOBBER_R9])
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return ret
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