# stap -v -e 'probe vfs.read {printf("read performed\n"); exit()}'
Pass 1: parsed user script and 480 library scripts using 110208virt/87228res/4364shr/82872data kb, in 340usr/100sys/508real ms.
Pass 2: analyzed script: 2 probes, 1 function, 5 embeds, 0 globals using 359640virt/337808res/5584shr/332304data kb, in 3550usr/3210sys/7971real ms.
Pass 3: translated to C into "/tmp/stapYcY3Q3/stap_bb7beda708525a1b7c17ed95247ac6bd_2911_src.c" using 359640virt/338032res/5808shr/332304data kb, in 10usr/10sys/6real ms.
In file included from /usr/share/systemtap/runtime/linux/print.c:18,
                 from /usr/share/systemtap/runtime/print.c:17,
                 from /usr/share/systemtap/runtime/runtime_context.h:22,
                 from /tmp/stapYcY3Q3/stap_bb7beda708525a1b7c17ed95247ac6bd_2911_src.c:115:
/usr/share/systemtap/runtime/vsprintf.c: In function ‘_stp_vsnprintf’:
/usr/share/systemtap/runtime/vsprintf.c:641:35: error: this statement may fall through [-Werror=implicit-fallthrough=]
  641 |                             flags |= STP_LARGE;
      |                             ~~~~~~^~~~~~~~~~~~
/usr/share/systemtap/runtime/vsprintf.c:642:21: note: here
  642 |                     case 'x':
      |                     ^~~~
/usr/share/systemtap/runtime/vsprintf.c:828:10: error: this statement may fall through [-Werror=implicit-fallthrough=]
  828 |    flags |= STP_LARGE;
      |    ~~~~~~^~~~~~~~~~~~
/usr/share/systemtap/runtime/vsprintf.c:829:3: note: here
  829 |   case 'x':
      |   ^~~~
cc1: all warnings being treated as errors
make[1]: *** [scripts/Makefile.build:288: /tmp/stapYcY3Q3/stap_bb7beda708525a1b7c17ed95247ac6bd_2911_src.o] Error 1
make: *** [Makefile:1655: _module_/tmp/stapYcY3Q3] Error 2
WARNING: kbuild exited with status: 2
Pass 4: compiled C into "stap_bb7beda708525a1b7c17ed95247ac6bd_2911.ko" in 10210usr/2390sys/12685real ms.
Pass 4: compilation failed.  [man error::pass4]