hi:
2010/7/14 Ian Lance Taylor <iant@xxxxxxxxxx>:
> loody <miloody@xxxxxxxxx> writes:
>
>> I write a sample program and compile it with -O1 optimized.
>> (such as gcc -g -O1 -o test test.c)
>> And I can see the local variable.
>> I attach my test program, kernel config and compile flags for your reference.
>> appreciate your help,
>
> Thanks, but it seems like you are showing us a case which works. Are
> you asking why this works and the kernel doesn't work? Can you show us
> a case which doesn't work?
I paste the content of my gdb as below:
( I stop at line 1242 and I try to print i but gdb refused)
Program received signal 0, Signal 0.
dummy_timer (_dum=<value optimized out>) at drivers/usb/gadget/dummy_hcd.c:1242
(gdb) p i
$13 = <value optimized out>
(gdb) list
1237 }
1238
1239 for (i = 0; i < DUMMY_ENDPOINTS; i++) {
1240 if (!ep_name [i])
1241 break;
1242 dum->ep [i].already_seen = 0;
1243 }
1244
1245 restart:
1246 list_for_each_entry_safe (urbp, tmp, &dum->urbp_list,
urbp_list) {
(gdb) p i
$14 = <value optimized out>
(gdb)
appreciate your help,
miloody
