|S390_RUNTIME_INSTR(2)||FreeBSD System Calls Manual||S390_RUNTIME_INSTR(2)|
NAMEs390_runtime_instr - enable/disable s390 CPU run-time instrumentation
int s390_runtime_instr(int command, int signum);
DESCRIPTIONThe s390_runtime_instr() system call starts or stops CPU run-time instrumentation for the calling thread.
RETURN VALUEOn success, s390_runtime_instr() returns 0 and enables the thread for run-time instrumentation by assigning the thread a default run-time instrumentation control block. The caller can then read and modify the control block and start the run-time instrumentation. On error, -1 is returned and errno is set to one of the error codes listed below.
- The value specified in command is not a valid command or the value specified in signum is not a real-time signal number.
- Allocating memory for the run-time instrumentation control block failed.
- The run-time instrumentation facility is not available.
VERSIONSThis system call is available since Linux 3.7.
CONFORMING TOThis Linux-specific system call is available only on the s390 architecture. The run-time instrumentation facility is available beginning with System z EC12.
NOTESGlibc does not provide a wrapper for this system call, use syscall(2) to call it.
SEE ALSOsyscall(2), signal(7)
COLOPHONThis page is part of release 3.53 of the Linux man-pages project. A description of the project, and information about reporting bugs, can be found at http://www.kernel.org/doc/man-pages/.
|2012-12-17||Linux Programmer's Manual|