Hello,
This is the first time to write email to this mailing list.
If you know how to solve my progblem, please let me know.
I'm currently porting "cross GDB&Angel" to our platform. The platform I'm using
is based on the ARM720 which is made by my company.
I downloaded GDB (gdb+dejagnu-20000426) from sourceware.cygnus.com, and it is built
after I added
some my codes. I already ported Angel debugging agent to our platform.
Now I have the following questions.
1. Register display
There is no command to show registers in the both GDB 4.18 and
gdb+dejagnu-20000426.
Even more, I get general pupose register value only in the current mode.
For instance, the cpu is in USR32 mode, then I cannot get the register value in
FIQ mode.
So I added "show_regs()" function to get GP registers and CP15 registers.
But I wonder that there is a patch code for this Register display.
2. next command, finish command
I place linux kernel image in RAM after I compiled linux kernel with -g -O
options. There is already Angel Image in ROM started at 0. Most of gdb
commands are working fine.
But with next command, the program couldn't stop at the next line and keep
running. So I added some codes in "gdb/infrun.c:1872" for this problem as
follows.
Orignal code in gdb/infrun.c
1866 {
1867 /* This breakpoint matches--either it is the right
1868 thread or it's a generic breakpoint for all threads.
1869 Remember that we'll need to step just _this_ thread
1870 on any following user continuation! */
1871 thread_step_needed = 1;
1872 }
My code
1866 {
1867 /* This breakpoint matches--either it is the right
1868 thread or it's a generic breakpoint for all threads.
1869 Remember that we'll need to step just _this_ thread
1870 on any following user continuation! */
1871 thread_step_needed = 1;
1872 // by SAMI
1873 if(step_resume_breakpoint != NULL && step_resume_breakpoint->address
== stop_pc)
1874 step_resume_breakpoint = NULL;
1875 }
After fix like above, the next command is working fine so far.
The finish command doesn't work too. The linux kernel program doesn't stop
at next line in previous frame with the finish command.
In fact, i'm not an expert on complier and debugger, so I canbe wrong, and I
don't touch any code myself.
I just want to know the way to figure out this problem.
3. Baudrate
With angel, I want to change baudare in runtime. Actually, there is
"set remotebaud" command, but it doesn't seems to work with angel.
Does anyone have solutions or suggestions?
-----------------------------------o00--(_)--00o-------
Jungjun Kim System Software Engineer Mobile-SOC
Team, Hyundai Electronics Office) +82-2-3459-3205 FAX)
+82-2-3459-5843 .oooO Oooo.
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