rt_sigaction on score

examine and change a signal action

sys_rt_sigaction(int sig, const struct sigaction *act, struct sigaction *oact, size_t sigsetsize)
number134 (0x86)
abicommon
entry pointsys_rt_sigaction
sinceLinux 3.7 or earlier (3.7 is the first release scanned for score)
man pagert_sigaction(2)
sourceelixir.bootlin.com

Registers

registervalue
r27134, the syscall number
r4int sig
r5const struct sigaction *act
r6struct sigaction *oact
r7size_t sigsetsize
r4the return value

Then run syscall to enter the kernel.

r7 is the error flag and r4 then holds the positive error number.

This architecture was removed from the Linux kernel in Linux 4.17. The newest release with a syscall table here is Linux 4.16. The other removed architectures live on the historical architectures page.

Same syscall on other architectures

Get this as JSON: https://api.syscall.sh/v2/syscalls/score/rt_sigaction?kernel=all