Bug 632259

Description of problem:
During bug 631011 testing, I tried to use gdb for looking into what is executing in the testcase. I tried to set a breakpoint on 'strspn' function, and run the testcase. An internal error followed.

Testcase:

# cat static.c
#include <stdio.h>
#include <string.h>

int main (int argc, char *argv[]){
   char strtext[] = "129th";
   char cset[]    = "1234567890";
   int i;

   i = strspn( strtext, cset );
   printf ( "The length of initial number is %d.\n", i );

   return 0;
}
# gcc static.c -g -static -O0 -o static64 -m64

Version-Release number of selected component (if applicable):
# rpm -q gdb
gdb-7.1-29.el6.x86_64
# rpm -q glibc
glibc-2.12-1.7.el6.x86_64

How reproducible:
seems like always (both 32 and 64 bit), but only when the testcase is compiled with -static

Steps to Reproduce:
1. obtain the binary as described above
2. gdb static64
3. b strspn
4. r
  
Actual results:
Starting program: /tmp/glibc-testing/static 

Breakpoint 1, 0x0804fa40 in strspn ()
Error in re-setting breakpoint 1: The program being debugged stopped while in a function called from GDB.
Evaluation of the expression containing the function
(strspn) will be abandoned.
When the function is done executing, GDB will silently stop.
../../gdb/infrun.c:5467: internal-error: normal_stop: Assertion `get_frame_type (frame) == DUMMY_FRAME' failed.
A problem internal to GDB has been detected,
further debugging may prove unreliable.
Quit this debugging session? (y or n) n

../../gdb/infrun.c:5467: internal-error: normal_stop: Assertion `get_frame_type (frame) == DUMMY_FRAME' failed.
A problem internal to GDB has been detected,
further debugging may prove unreliable.
Create a core file of GDB? (y or n) n

Expected results:
no internal errors

Additional info:
The issue occurs no matter if original bug 631011 in glibc is fixed or not