Hi Mike,
Thanks for your reply.
>Can you reproduce the error with a small test program?
No, I am unable to reproduce the error. It is working fine with small programs
> How are you compiling it?
I am giving following compiler flags
-mlittle-endian -mxl-barrel-shift -mxl-pattern-compare -mcpu=v8.20.a
-mno-xl-soft-mul
> What gdb commands do you use which causes the error?
(gdb) target remote <ip-addr>:portnumber
(gdb)load
(gdb)break main
(gdb) c
(gdb)s
(gdb)print i
Could not find the frame base for "main"
>What is the Dwarf for the function and variables where the error occurs?
I dont know how to see Dwarf for the function and variable.
Please find the attached microblaze-readelf output file.
>What is the locptr value that you think is incorrect?
In gdb source gdb/gdb/dwarf2loc.c file find_location_expression function
It is calculating low/high addresses and comparing them with pc
if (pc >= low && pc < high)
{
*locexpr_length = length;
return loc_ptr;
}
But in this particular case this condition is never met as a result I
am getting the error "Could not find the frame base for "main""
The same application is working fine with Dwarf3. I have used
-gdwarf-3 in compilation and now GDN is displaying local variables
correctly.
On Thu, Jun 2, 2011 at 11:21 AM, Michael Eager <eager@xxxxxxxxxxxx> wrote:
> On 06/01/2011 08:58 PM, naga raj wrote:
>>
>> Hi Ian,
>>
>> Thanks for the reply.
>> I am using gdb-7.2 version and my target is Xilinx microblaze.
>
> If you put MicroBlaze in the subject line, I'm much more likely to
> notice your email.
>
> What sources are you using for GCC? When you say you ported GCC
> to MicroBlaze and made Dwarf debugging the default, this is very
> odd, since there is support in GCC-4.6 for MicroBlaze which defaults
> to Dwarf debug support. Gcc-4.1.2 in the Xilinx EDK sources also
> support Dwarf debugging.
>
> As Ian said, there isn't enough information to tell whether
> there is a bug in gcc or not.
>
> Can you reproduce the error with a small test program?
> How are you compiling it?
> What gdb commands do you use which causes the error?
> What is the Dwarf for the function and variables where the error occurs?
> What is the locptr value that you think is incorrect?
>
> --
> Michael Eager eager@xxxxxxxxxxxx
> 1960 Park Blvd., Palo Alto, CA 94306 650-325-8077
>
Attachment:
info
Description: Binary data
