syscall.sh / x64 / pidfd_send_signal

pidfd_send_signal

send a signal to a process specified by a file descriptor

sys_pidfd_send_signal(int pidfd, int sig, siginfo_t *info, unsigned int flags)
number424 (0x1a8)
abicommon
entry pointsys_pidfd_send_signal
sinceLinux 5.1
man pagepidfd_send_signal(2)
sourceelixir.bootlin.com

Registers

registervalue
rax424, the syscall number
rdiint pidfd
rsiint sig
rdxsiginfo_t *info
r10unsigned int flags
raxthe return value

Then run syscall to enter the kernel.

Same syscall on other architectures

Get this as JSON: https://api.syscall.sh/v2/syscalls/x64/pidfd_send_signal