e frame pointer
and is negative.  The location of the stab specifies which block it is
defined in; see *note Block Structure::.

   For example, the following C code:

     int
     main ()
     {
       int x;
     }

   produces the following stabs:

     .stabs "main:F1",36,0,0,_main   # 36 is N_FUN
     .stabs "x:1",128,0,0,-12        # 128 is N_LSYM
     .stabn 192,0,0,LBB2             # 192 is N_LBRAC
     .stabn 224,0,0,LBE2             # 224 is N_RBRAC

   See *note Procedures:: for more information on the 'N_FUN' stab, and
*note Block Structure:: for more information on the 'N_LBRAC' and
'N_RBRAC' stabs.