rt_smart userapp 应用程序报错的问题 qemu-virt64-riscv

发布于 2025-02-17 14:27:16 浏览：49 订阅该版

内核与userapp 编译都很顺利 
内核运行也正常 ，但是执行 userapp 中的 hello.elf 报错：
```
msh />hello.elf

elf_user_dump : user va : 0x0000000200000000, len : 0x40(64)
elf_user_dump : k_va : 0xffffffc000353180
  7f 45 4c 46 02 01 01 00   00 00 00 00 00 00 00 00
  02 00 f3 00 01 00 00 00   00 00 00 00 02 00 00 00
  40 00 00 00 00 00 00 00   a0 24 09 00 00 00 00 00
  01 00 00 00 40 00 38 00   02 00 40 00 16 00 15 00

elf_user_dump : user va : 0x0000000200000000, len : 0x40(64)
elf_user_dump : k_va : 0xffffffc0003531c0
  7f 45 4c 46 02 01 01 00   00 00 00 00 00 00 00 00
  02 00 f3 00 01 00 00 00   00 00 00 00 02 00 00 00
  40 00 00 00 00 00 00 00   a0 24 09 00 00 00 00 00
  01 00 00 00 40 00 38 00   02 00 40 00 16 00 15 00

msh />[E/libcpu.trap] [FATAL ERROR] Exception 2:Illegal Instruction

[E/libcpu.trap] scause:0x0000000000000002,stval:0x00000000464c457f,sepc:0x0000000200000000

--------------Dump Registers-----------------
Function Registers:
        ra(x1) = 0xffffffc00021f8fa     user_sp = 0x0000000300000000
        gp(x3) = 0xffffffc0002b39e8     tp(x4) = (nil)
Temporary Registers:
        t0(x5) = 0x0000000000000020     t1(x6) = 0x0000000500006d02
        t2(x7) = (nil)
        t3(x28) = 0xffffffc00030a5f8    t4(x29) = 0x0000000000000040
        t5(x30) = 0x000000000000002d    t6(x31) = 0x0000000000000054
Saved Registers:
        s0/fp(x8) = 0xffffffc000340ff0  s1(x9) = 0xffffffc00029247e
        s2(x18) = (nil) s3(x19) = (nil)
        s4(x20) = (nil) s5(x21) = (nil)
        s6(x22) = (nil) s7(x23) = (nil)
        s8(x24) = (nil) s9(x25) = (nil)
        s10(x26) = (nil)        s11(x27) = (nil)
Function Arguments Registers:
        a0(x10) = 0x0000000300000000    a1(x11) = 0x0000000200000000
        a2(x12) = 0x0000000300000000    a3(x13) = 0xffffffc000341000
        a4(x14) = 0xffffffc00033d000    a5(x15) = 0x0000000000000003
        a6(x16) = 0x8080808080808080    a7(x17) = 0x00000000000000c8
sstatus = 0x8000000000046020
        Supervisor Interrupt Disabled
        Last Time Supervisor Interrupt Enabled
        Last Privilege is User Mode
        Permit to Access User Page
        Not Permit to Read Executable-only Page
satp = 0x80000000000845e9
        Current Page Table(Physical) = 0x00000000845e9000
        Current ASID = (nil)
        Mode = Page-based 39-bit Virtual Addressing Mode
-----------------Dump OK---------------------
fp = 0xffffffc000340ff0
please use: addr2line -e hello.elf -a -f 0x200000000 0xffffffff00000000
[E/libcpu.trap] User Fault, killing thread: hello.elf
```