(gdb) run ../geniconvtbl/itm_comp.l
Starting program: /home/me/Projects/solaris/illumos-gate/usr/src/cross/src/lex/lex ../geniconvtbl/itm_comp.l

[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".

Program received signal SIGSEGV, Segmentation fault.
0x00005555555566f6 in slength (s=0x5558e2e0 <error: Cannot access memory at address 0x5558e2e0>) at sub1.c:251
251		for (n = 0; *t++; n++)
(gdb) bt
#0  0x00005555555566f6 in slength (s=0x5558e2e0 <error: Cannot access memory at address 0x5558e2e0>)
    at sub1.c:251
#1  0x0000555555557c8e in mn1 (a=16384, d=1431888608) at sub1.c:735
#2  0x0000555555560d3a in yyparse () at /home/me/Projects/solaris/illumos-gate/usr/src/cross/src/lex/parser.y:193
#3  0x00005555555558b2 in main (argc=2, argv=0x7fffffffe288) at main.c:168
(gdb)