Architectures and Processors forum Debug using gdb debugger, how to get the exception level?

State Accepted Answer
Locked Locked
Replies 8 replies
Subscribers 349 subscribers
Views 15414 views
Users 0 members are here

Options

Related

How was your experience today?

This discussion has been locked.

You can no longer post new replies to this discussion. If you have a question you can start a new discussion

Debug using gdb debugger, how to get the exception level?

Boon Khai over 4 years ago

I'm debugging the ARM Cortex A53 on the QEMU emulator using gdb debugger, any idea on how to get what exception level I'm running on (EL3/2/1/0) ?

Parents

+1 vstehle over 4 years ago in reply to Boon Khai

Hi Boon Khai,

gdb gets EL from CPSR bits 3:2.

(See also SPSR_EL1.M[3:2].)

CPSR 0x400003cd has indeed EL == 3,

CPSR 0x60000045 has EL == 1.
Cancel
Up 0 Down

Cancel

Reply

+1 vstehle over 4 years ago in reply to Boon Khai

Hi Boon Khai,

gdb gets EL from CPSR bits 3:2.

(See also SPSR_EL1.M[3:2].)

CPSR 0x400003cd has indeed EL == 3,

CPSR 0x60000045 has EL == 1.
Cancel
Up 0 Down

Cancel

Children

0 Boon Khai over 4 years ago in reply to vstehle

Hi Vstehle,

Got it! Thanks a lot!
Cancel
Up 0 Down

Cancel