syscall.sh / nios2 / ptrace

ptrace

process trace

sys_ptrace(long request, long pid, unsigned long addr, unsigned long data)
number117 (0x75)
abicommon
entry pointsys_ptrace
sinceLinux 3.19
man pageptrace(2)
sourceelixir.bootlin.com

Registers

registervalue
r2117, the syscall number
r4long request
r5long pid
r6unsigned long addr
r7unsigned long data
r2the return value

Then run trap to enter the kernel.

Same syscall on other architectures

Get this as JSON: https://api.syscall.sh/v2/syscalls/nios2/ptrace