[GitHub] [incubator-nuttx] superxyxiao commented on issue #7617: Exception generated when gdb debugging mpu protected mode on stm32f767 development board

[GitBox <gi...@apache.org>]

superxyxiao commented on issue #7617:
URL: https://github.com/apache/incubator-nuttx/issues/7617#issuecomment-1322905885

   Hi @acassis Generate the same error,The serial terminal is also unable to input.  by the way ,I use 8.2 version . my opertion whether error？
   
   (gdb) target remote :4242
   Remote debugging using :4242
   warning: No executable has been specified and target does not support
   determining executable automatically.  Try using the "file" command.
   0x08002b18 in ?? ()
   (gdb) load nuttx
   Loading section .text, size 0x1523f lma 0x8000000
   Loading section .ARM.exidx, size 0x8 lma 0x8015240
   Loading section .data, size 0x64 lma 0x8015248
   Start address 0x8000268, load size 86699
   Transfer rate: 27 KB/sec, 10837 bytes/write.
   (gdb) load nuttx_user.elf 
   Loading section .userspace, size 0x34 lma 0x8020000
   Loading section .text, size 0xacd3 lma 0x8020034
   Loading section .ARM.exidx, size 0x8 lma 0x802ad08
   Loading section .data, size 0x8 lma 0x802ad10
   Start address 0x80200bc, load size 44311
   Transfer rate: 13 KB/sec, 7385 bytes/write.
   (gdb) symbol-file nuttx
   Reading symbols from nuttx...done.
   (gdb) add-symbol-file nuttx_user.elf 0x8020034
   add symbol table from file "nuttx_user.elf" at
   	.text_addr = 0x8020034
   (y or n) y
   Reading symbols from nuttx_user.elf...done.
   (gdb) hbreak __start 
   Hardware assisted breakpoint 1 at 0x800026e: file chip/stm32_start.c, line 328.
   (gdb) c
   Continuing.
   
   Program received signal SIGTRAP, Trace/breakpoint trap.
   exception_common () at armv7-m/gnu/up_exception.S:142
   142		mrs		r0, ipsr				/* R0=exception number */
   (gdb) 


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