Change format of syscall event trace output to ftrace
问题 I enabled ftrace event tracing for sys_enter_openat syscall. The respective output format given at events/syscalls/sys_enter_openat/format is print fmt: "dfd: 0x%08lx, filename: 0x%08lx, flags: 0x%08lx, mode: 0x%08lx", ((unsigned long)(REC->dfd)), ((unsigned long)(REC->filename)), ((unsigned long)(REC->flags)), ((unsigned long)(REC->mode)) As expected a sample output line to ftrace is something like msm_irqbalance-1338 [000] ...1 211710.033931: sys_openat(dfd: ffffff9c, filename: 5af693f224,