All but the last parameters of t[g]kill() use 'pid_t', both in the kernel and glibc. Fix them. ...... .../linux/linux$ grep_syscall tkill kernel/signal.c:3870: SYSCALL_DEFINE2(tkill, pid_t, pid, int, sig) include/linux/syscalls.h:685: asmlinkage long sys_tkill(pid_t pid, int sig); .../linux/linux$ .../gnu/glibc$ grep_glibc_prototype tgkill sysdeps/unix/sysv/linux/bits/signal_ext.h:29: extern int tgkill (__pid_t __tgid, __pid_t __tid, int __signal); .../gnu/glibc$ Signed-off-by: Alejandro Colomar <alx.manpages@xxxxxxxxx> --- man2/tkill.2 | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/man2/tkill.2 b/man2/tkill.2 index 4b4eae312..24636719d 100644 --- a/man2/tkill.2 +++ b/man2/tkill.2 @@ -31,8 +31,8 @@ tkill, tgkill \- send a signal to a thread .SH SYNOPSIS .nf -.BI "int tkill(int " tid ", int " sig ); -.BI "int tgkill(int " tgid ", int " tid ", int " sig ); +.BI "int tkill(pid_t " tid ", int " sig ); +.BI "int tgkill(pid_t " tgid ", pid_t " tid ", int " sig ); .fi .PP .IR Note : -- 2.30.0