syscall.sh / parisc / kcmp

kcmp

compare two processes to determine if they share a kernel resource

sys_kcmp(pid_t pid1, pid_t pid2, int type, unsigned long idx1, unsigned long idx2)
number332 (0x14c)
abicommon
entry pointsys_kcmp
sinceLinux 5.0
man pagekcmp(2)
sourceelixir.bootlin.com

Registers

registervalue
r20332, the syscall number
r26pid_t pid1
r25pid_t pid2
r24int type
r23unsigned long idx1
r22unsigned long idx2
r28the return value

Then run ble 0x100(%sr2, %r0) to enter the kernel.

Same syscall on other architectures

Get this as JSON: https://api.syscall.sh/v2/syscalls/parisc/kcmp