syscall.sh / x32 / 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)
number1073742248 (0x400001a8)
abicommon
entry pointsys_pidfd_send_signal
sinceLinux 5.1
man pagepidfd_send_signal(2)
sourceelixir.bootlin.com

Registers

registervalue
rax1073742248, 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/x32/pidfd_send_signal