Forum: ARM programming with GCC/GNU tools debugging arm executable with gdb

von Test U. (csosza77)

Rate this post
0 useful
not useful

I have compiled linux kernel with arm-eabi toolchain on Ubuntu. The 
kernel is working. Now I'd like to debug it with gdb.
I tried this command: arm-eabi-gdb vmlinux

My questions:
Which gdb should I use?
There is a gdb in the arm-eabi (downloaded with android) toolchain. This 
will good?
I have tried that but I have got Don't know how to run. Try "help 
target" error message.
I tried to set breakpoint to __init_begin, this works but when I tried 
to start the debug with *start, run, cont* I have got this error 
attila@attila-desktop:~/Upload$ arm-eabi-gdb vmlinux
GNU gdb (GDB) 7.1-android-gg2
This GDB was configured as "--host=x86_64-linux-gnu --target=arm-elf-linux".
Reading symbols from /home/attila/Upload/vmlinux...(no debugging symbols found)...done.
(gdb) break __init_begin
Breakpoint 1 at 0xc0008000
(gdb) load vmlinux
You can't do that when your target is `exec'
(gdb) start
Function "main" not defined.
Make breakpoint pending on future shared library load? (y or [n]) n
Starting program: /home/attila/Upload/vmlinux 
Don't know how to run.  Try "help target".
(gdb) cont
The program is not being run.
(gdb) run
Starting program: /home/attila/Upload/vmlinux 
Don't know how to run.  Try "help target".


Entering an e-mail address is optional. If you want to receive reply notifications by e-mail, please log in.

Rules — please read before posting

  • Post long source code as attachment, not in the text
  • Posting advertisements is forbidden.

Formatting options

  • [c]C code[/c]
  • [avrasm]AVR assembler code[/avrasm]
  • [code]code in other languages, ASCII drawings[/code]
  • [math]formula (LaTeX syntax)[/math]

Bild automatisch verkleinern, falls nötig
Note: the original post is older than 6 months. Please don't ask any new questions in this thread, but start a new one.