TermiNexus
61208676c6
根因链：_start 由 bootloader jmp 进入（rsp≡0 mod 16），编译器/llc 按 call 约定对齐函数帧（假设入口 rsp≡8 mod 16）→ 帧整体偏 8 → _start 内所有调用 rsp≡8 mod 16 → __init__ 的 float 变参调用（snprintf %.2f 保存 xmm）movaps #GP（cr4.OSFXSR 已启用、地址 16 对齐仍 #GP 正是此因）。 加 t.attr.stackrealign 使 _start 序言动态重对齐栈，与入口约定无关。
415 lines
18 KiB
Plaintext
415 lines
18 KiB
Plaintext
from stdint import *
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import bootinfo
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import intr
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import platform.pch as pch
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import platform.pch.timer as timer
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import platform.pch.rtc as rtc
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import drivers.serial.uart.su8250 as su8250
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import drivers.serial.uart.serial as serial
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import drivers.devfs.devfs as devfs
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import paging.paging as paging
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import drivers.video.vesafb.vga as vga
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import drivers.video.vesafb.gfx as gfx
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import drivers.storage.ide.ide as ide
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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 mm.mm as mm
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import string
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import sched.sched as sched
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import sched.process as proc
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import drivers.input.keyboard.keyboard as keyboard
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import drivers.input.mouse.mouse as mouse
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import drivers.usb.usb as usb
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import drivers.core.cpu.cpu as cpu
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import drivers.core.cpu.apic as apic
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import viperlib
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import services.keyboard as kbd_svc
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import services.mouse as mse_svc
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import services.desktop as desktop
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import intr.syscall as syscall
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import execrunner.elf as elf
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import t, c
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import asm
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kbd_tid: t.CInt = -1
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mse_tid: t.CInt = -1
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BootInfo: bootinfo.bootinfo | t.CPtr
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@t.Object
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# @t.CVTable
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class ViperKernel:
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BootInfo: bootinfo.bootinfo | t.CPtr
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VGA: vga._VGAScreenDriver | t.CPtr
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VGA_drv: vga._VGAScreenDriver
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def __init__(self):
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global BootInfo
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self.BootInfo = BootInfo
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# 启用 SSE/FPU：OVMF 启动后 CR4.OSFXSR 未置位，movaps 会 #GP——
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# 变参函数传 float/double 保存 xmm 寄存器触发（sched started 后崩溃根因）。
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cpu.enable_sse()
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# 注意：此处不能再写 `BootInfo: bootinfo.bootinfo | t.CPtr = self.BootInfo`
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# 局部重声明全局名——编译器会创建局部 alloca 却不写入（赋值落全局），
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# 后续 BootInfo.X 读未初始化局部 → 全 0 → memmap 永不可用。直接用 global。
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serial.init()
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serial.puts("===== ViperOS VKernel Test\n =====")
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serial.puts("V2.3.8\n")
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intr.gdt.init()
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# Set IA32_KERNEL_GS_BASE = &_per_cpu so swapgs in ISR/syscall works.
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# _CPUObject is never instantiated, so __init_tss__ never runs;
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# without this, GS base stays 0 and gs:[0] writes hit null -> triple fault.
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cpu.msr_write(cpu.IA32_KERNEL_GS_BASE, t.CUInt64T(c.Addr(cpu._per_cpu)))
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serial.puts("[main] gdt init done\n")
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intr.idt.init()
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syscall.init()
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serial.puts("[main] syscall init done\n")
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# 必须在 sti() 之前初始化调度器，否则中断触发时 _sched_ptr 为 NULL 会导致三重故障
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sched.Scheduler()
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serial.puts("[main] sched init done\n")
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timer.timer_init()
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serial.puts("[main] timer init done\n")
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#mouse.init()
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#serial.puts("[main] mouse init done\n")
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# 必须初始化 APIC：QEMU/OVMF（UEFI）下本地 APIC 已启用，PIC 外部中断
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# 须经 LINT0 送达 CPU。apic.init() 将 LINT0 配为 EXTINT（取消屏蔽），
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# 否则定时器中断被 APIC 吞掉 → sti 后 msleep 永远等不到 ticks 挂死。
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apic.early_init()
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serial.puts("[main] apic init done\n")
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# [DBG] 综合诊断：判定 LAPIC MMIO 是否真正可访问/可写（用后移除）
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_dbg_base: t.CUInt64T = apic.get_base()
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_dbg_ver: t.CUInt32T = apic.read(0x030) # LAPIC_VERSION：真 LAPIC 应为 0x50014
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_dbg_svr: t.CUInt32T = apic.read(0x0F0) # LAPIC_SVR：init 已写 0x1FF
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apic.write(0x350, 0x700) # 再次写 LINT0，验证写粘性
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_dbg_lint0: t.CUInt32T = apic.read(0x350)
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_dbg_feat: t.CUInt32T = cpu.detect_features_static()
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_dbg_buf: t.CArray[t.CChar, 160]
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viperlib.snprintf(c.Addr(_dbg_buf), 160,
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"[DBG] base=0x%lx ver=0x%x svr=0x%x lint0=0x%x feat=0x%x apic=%d\n",
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_dbg_base, _dbg_ver, _dbg_svr, _dbg_lint0, _dbg_feat,
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1 if (_dbg_feat & cpu.CPU_FEATURE_APIC) else 0)
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serial.puts(c.Addr(_dbg_buf))
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# [DBG] 读回 IDT 门 32，验证 isr32 分发地址是否正确安装（用后移除）
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_g32: t.CUInt64T = (t.CUInt64T(intr.idt.idt[32].base_low) |
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(t.CUInt64T(intr.idt.idt[32].base_middle) << 16) |
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(t.CUInt64T(intr.idt.idt[32].base_high) << 32))
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_g32buf: t.CArray[t.CChar, 96]
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viperlib.snprintf(c.Addr(_g32buf), 96, "[DBG] idt32 base=0x%lx sel=0x%x type=0x%x\n",
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_g32, intr.idt.idt[32].selector, intr.idt.idt[32].type_attr)
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serial.puts(c.Addr(_g32buf))
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asm.sti()
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serial.puts("[main] sti done\n")
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# [DBG] 软件触发 int 0x20：门 32 有效则分发到 isr32→timer_handler 打印 H 并返回；
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# 门无效则 #GP（isrCommonhandler 打印 [GP] err=0x20），一次性区分分发路径（用后移除）
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serial.puts("[DBG] before swint\n")
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c.Asm("int 0x20", op=[t.ASM_DESCR.CLOBBER_MEMORY])
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serial.puts("[DBG] after swint\n")
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# [DBG] 读 PIC1 ISR：bit0 置位说明 PIT IRQ0 已到达 PIC 并被响应（用后移除）
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asm.outb(0x20, 0x0B) # OCW3 读 ISR
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asm.io_wait()
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_pic_isr: t.CUInt8T = asm.inb(0x20)
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_isrbuf: t.CArray[t.CChar, 48]
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viperlib.snprintf(c.Addr(_isrbuf), 48, "[DBG] pic_isr=0x%x\n", _pic_isr)
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serial.puts(c.Addr(_isrbuf))
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timer.timer_msleep(100)
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serial.puts("[main] msleep done\n")
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rtc.rtc_init()
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serial.puts("[main] rtc init done\n")
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ncpu: t.CUInt32T = apic.get_cpu_count()
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ncpu_cr: t.CArray[t.CChar, 32]
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viperlib.snprintf(c.Addr(ncpu_cr), 32, "[main] cpu_count=%u\n", ncpu)
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serial.puts(ncpu_cr)
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if ncpu > 1:
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apic.start_aps()
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serial.puts("[main] kernel init done\n")
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fb: t.CVoid | t.CPtr = BootInfo.framebuffer_addr
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width: t.CUInt64T = BootInfo.framebuffer_width
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height: t.CUInt64T = BootInfo.framebuffer_height
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pitch: t.CUInt64T = BootInfo.framebuffer_pitch
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fb_format: t.CUInt64T = BootInfo.framebuffer_format
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fb_size: t.CUInt64T = BootInfo.framebuffer_size
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# [DBG] 打印 BootInfo 指针与 memmap 原始字段，定位全 0 根因（用后移除）
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_dbbuf: t.CArray[t.CChar, 140]
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viperlib.snprintf(c.Addr(_dbbuf), 140, "[main] BootInfo=0x%lx mmap=0x%lx mmsz=%lu mmd=%lu fb=0x%lx\n",
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t.CUInt64T(BootInfo), BootInfo.MemmapAddr, BootInfo.MemmapSize,
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BootInfo.MemmapDescSize, BootInfo.framebuffer_addr)
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serial.puts(c.Addr(_dbbuf))
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# [DBG] 转储 BootInfo 地址处原始 88 字节（用后移除）
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_dbraw: t.CArray[t.CChar, 16]
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_dbi: t.CInt = 0
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while _dbi < 88:
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if (_dbi % 16) == 0:
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viperlib.snprintf(c.Addr(_dbraw), 16, "\n[DB] %04x:", _dbi)
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serial.puts(c.Addr(_dbraw))
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_dbv: t.CUInt8T = c.Deref(t.CUInt8T(t.CUInt64T(BootInfo) + t.CUInt64T(_dbi), t.CPtr))
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viperlib.snprintf(c.Addr(_dbraw), 16, " %02x", _dbv)
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serial.puts(c.Addr(_dbraw))
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_dbi += 1
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serial.puts("\n[DB] dump end\n")
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if BootInfo is not None:
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paging.init(BootInfo.MemmapAddr, BootInfo.MemmapSize)
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fb_pages: t.CUInt64T = (fb_size + t.CUInt64T(0xFFF)) >> t.CUInt64T(12)
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fpi: t.CUInt64T = 0
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while fpi < fb_pages:
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fva: t.CUInt64T = t.CUInt64T(fb) + fpi * t.CUInt64T(0x1000)
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paging.MapPage(fva, fva, paging.PTE_WRITABLE | paging.PTE_PCD)
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fpi += 1
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mm.init(BootInfo.MemmapAddr, BootInfo.MemmapSize, BootInfo.MemmapDescSize, BootInfo.framebuffer_addr, fb_size)
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pt_pool_buf: t.CVoid | t.CPtr = mm.malloc(t.CUInt64T(513) * t.CUInt64T(4096))
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paging.init_pool(pt_pool_buf, t.CUInt64T(513) * t.CUInt64T(4096))
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else:
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paging.init(0, 0)
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mm.init(0, 0, 0, 0, 0)
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pt_pool_buf2: t.CVoid | t.CPtr = mm.malloc(t.CUInt64T(513) * t.CUInt64T(4096))
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paging.init_pool(pt_pool_buf2, t.CUInt64T(513) * t.CUInt64T(4096))
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serial.puts("[main] paging and mm init done\n")
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proc.ProcessManager()
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serial.puts("[main] process manager init done\n")
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ide.init()
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serial.puts("[main] ide init done\n")
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serial.puts("[main] initializing FAT32 filesystem\n")
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scan_res: t.CInt = fat32.scan_drives()
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ndrives: t.CInt = fat32.get_drive_count()
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ndrives_cr: t.CArray[t.CChar, 64]
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viperlib.snprintf(c.Addr(ndrives_cr), 64, "[fat32] scan_res=%d found %d drives\n", scan_res, ndrives)
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serial.puts(ndrives_cr)
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if ndrives > 0:
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mount_res: t.CInt = fat32.mount()
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if mount_res == 0:
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dp: fat32_types.dirobj
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res: t.CInt = fat32.opendir("/", c.Addr(dp))
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if res == 0:
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serial.puts("[fat32] listing 0:/\n")
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count: t.CInt = 0
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while count < 20:
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info: fat32_types.fileinfo
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res2: t.CInt = fat32.readdir(c.Addr(dp), c.Addr(info))
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if res2 != 0: break
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if info.fname[0] == 0: break
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is_dir: t.CInt = 1 if (info.attr & fat32_types.AM_DIR) else 0
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entry_cr: t.CArray[t.CChar, 300]
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viperlib.snprintf(c.Addr(entry_cr), 300, " %s size=%lu dir=%d\n", c.Addr(info.fname[0]), info.file_size, is_dir)
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serial.puts(entry_cr)
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count = count + 1
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fat32.closedir(c.Addr(dp))
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serial.puts("[fat32] directory listing done\n")
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else:
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serial.puts("[fat32] failed to open root directory\n")
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# Load ELF apps BEFORE running destructive FAT32 tests
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serial.puts("[main] loading ELF apps...\n")
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dp_apps: fat32_types.dirobj
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apps_res: t.CInt = fat32.opendir("/APPS", c.Addr(dp_apps))
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if apps_res == 0:
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serial.puts("[main] APPS dir listing:\n")
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ac: t.CInt = 0
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while ac < 20:
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ai: fat32_types.fileinfo
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ar: t.CInt = fat32.readdir(c.Addr(dp_apps), c.Addr(ai))
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if ar != 0: break
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if ai.fname[0] == 0: break
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ae: t.CArray[t.CChar, 300]
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viperlib.snprintf(c.Addr(ae), 300, " %s size=%lu\n", c.Addr(ai.fname[0]), ai.file_size)
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serial.puts(ae)
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ac = ac + 1
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fat32.closedir(c.Addr(dp_apps))
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else:
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serial.puts("[main] APPS dir not found\n")
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sched.Scheduler.disable()
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hello_pid: t.CInt = elf.spawn_elf("/APPS/hello.elf")
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if hello_pid < 0:
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serial.puts("[main] Hello spawn failed\n")
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else:
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slog: t.CArray[t.CChar, 64]
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viperlib.snprintf(c.Addr(slog), 64, "[main] Hello spawned as pid=%d\n", hello_pid)
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serial.puts(slog)
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term_pid: t.CInt = elf.spawn_elf("/APPS/terminal.elf")
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if term_pid < 0:
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serial.puts("[main] Terminal spawn failed\n")
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else:
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tlog: t.CArray[t.CChar, 64]
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viperlib.snprintf(c.Addr(tlog), 64, "[main] Terminal spawned as pid=%d\n", term_pid)
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serial.puts(tlog)
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garg_pid: t.CInt = elf.spawn_elf("/APPS/gargantua.elf")
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if garg_pid < 0:
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serial.puts("[main] Gargantua spawn failed\n")
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else:
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glog: t.CArray[t.CChar, 64]
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viperlib.snprintf(c.Addr(glog), 64, "[main] Gargantua spawned as pid=%d\n", garg_pid)
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serial.puts(glog)
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s3d_pid: t.CInt = elf.spawn_elf("/APPS/scene3d.elf")
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if s3d_pid < 0:
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serial.puts("[main] Scene3D spawn failed\n")
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else:
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s3d_log: t.CArray[t.CChar, 64]
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viperlib.snprintf(c.Addr(s3d_log), 64, "[main] Scene3D spawned as pid=%d\n", s3d_pid)
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serial.puts(s3d_log)
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so_base: t.CVoid | t.CPtr = elf.load_so("/LIBS/SLOG.SO")
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if so_base is not None:
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serial.puts("[main] slog.so loaded, calling log_info...\n")
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log_info_fn: t.CVoid | t.CPtr = elf.get_so_symbol(so_base, "log_info", "/LIBS/SLOG.SO")
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if log_info_fn is not None:
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msg: t.CConst | t.CChar | t.CPtr = "Hello from shared library!"
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c.Asm(f"""mov rdi, {c.AsmInp(msg, t.ASM_DESCR.REG_ANY)}
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call {c.AsmInp(log_info_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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else:
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serial.puts("[main] log_info symbol not found\n")
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else:
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serial.puts("[main] failed to load slog.so\n")
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sched.Scheduler.enable()
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# FAT32 destructive tests removed to prevent disk.img corruption
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# (write/rename/delete/mkdir/rmdir permanently modify the disk image)
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fat32.unmount()
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serial.puts("[fat32] unmounted\n")
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else:
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serial.puts("[fat32] mount failed\n")
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else:
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serial.puts("[fat32] no drives found\n")
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devfs.devfs_init()
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devfs.devfs_register_serial0()
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devfs.devfs_register_serial1()
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devfs.devfs_register_keyboard()
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devfs.devfs_register_mouse()
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serial.puts("[main] sched started\n")
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fd: t.CInt = devfs.devfs_open("/dev/serial0", 0)
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buf: t.CArray[t.CChar, 64]
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string.memset(c.Addr(buf), 0, 64)
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devfs.devfs_write(fd, "hello from devfs!", 17)
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devfs.devfs_read(fd, c.Addr(buf), 64)
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devfs.devfs_close(fd)
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cr: t.CArray[t.CChar, 30]
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string.memset(c.Addr(cr), 0, 30)
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viperlib.snprintf(c.Addr(cr), 30, "hello %d %.2f", 42, float(0.24))
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serial.puts(cr)
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serial.puts("\n")
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bootinfo_cr: t.CArray[t.CChar, 256]
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string.memset(c.Addr(bootinfo_cr), 0, 256)
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viperlib.snprintf(c.Addr(bootinfo_cr), 256, "Bootinfo 0x%016lx %lu %lu %lu %lu %lu map 0x%lx+%lu descsize=%lu",
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BootInfo.framebuffer_addr,
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BootInfo.framebuffer_format,
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BootInfo.framebuffer_width,
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BootInfo.framebuffer_height,
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BootInfo.framebuffer_pitch,
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BootInfo.framebuffer_size,
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BootInfo.MemmapAddr,
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BootInfo.MemmapSize,
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BootInfo.MemmapDescSize)
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serial.puts(bootinfo_cr)
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serial.puts("\n")
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a: t.CConst | str = "Hello"
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serial.puts(c.Addr(a[4])) # o
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serial.puts("\n")
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d: t.CConst | int = 42
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b: t.CConst | int | t.CPtr = c.Addr(d)
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string.memset(c.Addr(cr), 0, 4)
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viperlib.snprintf(c.Addr(cr), 30, "%d", b[0]) # 42
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serial.puts(cr)
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serial.puts("\n")
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# paging and mm already initialized before FAT32
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usb.init()
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serial.puts("[main] starting keyboard service\n")
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kbd_svc.start()
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serial.puts("[main] starting mouse service\n")
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mse_svc.start()
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serial.puts("[main] services started\n")
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self.VGA_drv = vga._VGAScreenDriver(fb, width, height, pitch, fb_format)
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||
self.VGA = c.Addr(self.VGA_drv)
|
||
self.VGA.Print(100, 100, "ViperOS VKernel Test")
|
||
serial.puts("你好\n")
|
||
|
||
serial.puts("[main] starting desktop\n")
|
||
desktop.start(fb, width, height, pitch)
|
||
serial.puts("[main] desktop started\n")
|
||
|
||
# ELF apps already loaded before FAT32 tests
|
||
|
||
serial.puts("[main] entering main loop\n")
|
||
# sched.sched_dump()
|
||
last_sec: t.CUInt32T = 0
|
||
loop_cnt: t.CUInt32T = 0
|
||
while True:
|
||
cur_sec: t.CUInt32T = timer.timer_get_seconds()
|
||
if cur_sec != last_sec:
|
||
last_sec = cur_sec
|
||
#if cur_sec % 5 == 0:
|
||
# sched.sched_dump()
|
||
loop_cnt += 1
|
||
sched.Scheduler._yield()
|
||
#while True:
|
||
# cube.RenderScene(back_fb, cube.SCREEN_W, cube.SCREEN_H, time)
|
||
# string.memcpy(fb, back_fb, width * height * 4)
|
||
# serial.puts("time")
|
||
# time += float(0.1)
|
||
|
||
# circle(width / 2, height / 2, 180, fb)
|
||
# circle(640, 400, 180, 0xFFFFFFFF)
|
||
|
||
# X 字符串遍历
|
||
# c.Cast 更换
|
||
# 时钟
|
||
# PCI
|
||
# SHA1 它者文件更新
|
||
# assets
|
||
# X attributes语法和谐
|
||
# 合成式类型转换
|
||
|
||
|
||
VKP: ViperKernel | t.CPtr
|
||
# stackrealign：_start 由 bootloader jmp 进入（rsp≡0 mod 16），llc 按 call 约定
|
||
# 假设入口 rsp≡8 → 帧偏 8 → 变参函数 movaps #GP。动态重对齐栈修复。
|
||
@c.Attribute(t.attr.section(".text.startup"), t.attr.aligned(16), t.attr.stackrealign)
|
||
def _start() -> t.CInt:
|
||
global VKP, BootInfo
|
||
saved_rdi: t.CUnsignedLong
|
||
c.Asm(f"mov {c.AsmOut(saved_rdi, t.ASM_DESCR.OUTPUT_REG)}, rdi",
|
||
op = [t.ASM_DESCR.CLOBBER_MEMORY, t.ASM_DESCR.CLOBBER_RDI])
|
||
asm.BSSClean()
|
||
BootInfo = saved_rdi # 隐式转为 bootinfo*
|
||
VKP = c.Addr(ViperKernel())
|
||
while True:
|
||
asm.sti()
|
||
asm.hlt()
|
||
sched.Scheduler._yield()
|
||
return 0
|
||
|