Description of problem:

gdb is unable to break into a -pie linked executable shared object:

$ echo 'int main(int argc, char **argv, char **envp){ return 0;}' > t.c
$ gcc -g -fPIE -o t.o -c t.c
$ gcc -pie -o t t.o
$ gdb t
$ gdb t
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This GDB was configured as "i386-redhat-linux-gnu"...Using host libthread_db
library "/lib/libthread_db.so.1".

(gdb) start
Breakpoint 1 at 0x5bc: file t.c, line 1.
Starting program: /tmp/t
Reading symbols from shared object read from target memory...done.
Loaded system supplied DSO at 0x111000
Breakpoint 1 at 0x613724: file t.c, line 1.

Program exited with code 0264.
(gdb) break main
Note: breakpoint 1 (disabled) also set at pc 0x613724.
Breakpoint 2 at 0x613724: file t.c, line 1.
(gdb) run
warning: cannot close "shared object read from target memory": Invalid operation
Starting program: /tmp/t
Reading symbols from shared object read from target memory...done.
Loaded system supplied DSO at 0x111000
Breakpoint 1 at 0x973cebc: file t.c, line 1.
Breakpoint 2 at 0x973cebc: file t.c, line 1.

Program exited with code 0124.
(gdb)

The problem does not occur if the only the '-pie' option is omitted from the
link - ie:
$ gcc -g -fPIE -o t.o -c t.c
$ gcc -o t t.o
and the problem does not occur.

Compiling with / without -fPIE seems to make no difference - the problem is
only triggered for an executable linked with -pie .

Version-Release number of selected component (if applicable):
gdb-6.3.0.0-1.110

How reproducible:
100%

Steps to Reproduce:
Try to break into a -pie linked executable
  
Actual results:
Break fails

Expected results:
gdb should halt execution at the breakpoint