syscall.sh / s390x / s390_runtime_instr
s390_runtime_instr
enable/disable s390 CPU run-time instrumentation
sys_s390_runtime_instr(int command, int signum)| number | 342 (0x156) |
|---|---|
| abi | common |
| entry point | sys_s390_runtime_instr |
| since | Linux 4.16 |
| man page | s390_runtime_instr(2) |
| source | elixir.bootlin.com |
Registers
| register | value |
|---|---|
r1 | 342, the syscall number |
r2 | int command |
r3 | int signum |
r2 | the return value |
Then run svc 0 to enter the kernel.
Get this as JSON: https://api.syscall.sh/v2/syscalls/s390x/s390_runtime_instr