These are the signals as explained on the manual page of signal(7). For details consult the manual page with:
man 7 signal
The following signals are defined by Posix and can be sent by kpm:
SIGHUP: Hangup detected on controlling terminal or death of controlling process
SIGINT: Interrupt from keyboard
SIGQUIT: Quit from keyboard
SIGILL: Illegal Instruction
SIGABRT: Abort signal from abort(3)
SIGFPE: Floating point exception
SIGKILL: Kill signal
SIGSEG: Invalid memory reference
SIGPIPE: Broken pipe: write to pipe with no readers
SIGALRM: Timer signal from alarm(1)
SIGTERM: Termination signal
SIGUSR1: User-defined signal 1
SIGUSR2: User-defined signal 2
SIGCHLD: Child stopped or terminated
SIGCONT: Continue if stopped
SIGSTOP: Stop process
SIGTSTP: Stop typed at tty
SIGTTIN: tty input for background process
SIGTTOU: tty output for background process
SIGTRAP: Trace/breakpoint trap
SIGIOT: IOT trap. A synonym for SIGABRT
SIGBUS: Bus error
SIGSYS: Bad argument to routine (SVID)
SIGSTKFLT: Stack fault on coprocessor
SIGURG: Urgent condition on socket (4.2 BSD)
SIGIO: I/O now possible (4.2 BSD)
SIGPOLL: synonym for SIGIO (System V)
SIGCLD: synonym for SIGCHLD
SIGXCPU: CPU time limit exceeded (4.2 BSD)
SIGXFSZ: File size limit exceeded (4.2 BSD)
SIGVTALRM: Virtual alarm clock (4.2 BSD)
SIGPROF: Profile alarm clock
SIGPWR: Power failure (System V)
SIGINFO: A synonym for SIGPWR
SIGLOST: File lock lost
SIGWINCH: Window resize signal (4.3 BSD, Sun)
SIGUNUSED: Unused signal