perf_event_open on blackfin

set up performance monitoring

sys_perf_event_open(struct perf_event_attr *attr_uptr, pid_t pid, int cpu, int group_fd, unsigned long flags)
number369 (0x171)
abicommon
kconfigCONFIG_PERF_EVENTS
entry pointsys_perf_event_open
sinceLinux 3.3 or earlier (3.3 is the first release scanned for blackfin)
man pageperf_event_open(2)
sourceelixir.bootlin.com

Registers

registervalue
P0369, the syscall number
R0struct perf_event_attr *attr_uptr
R1pid_t pid
R2int cpu
R3int group_fd
R4unsigned long flags
R0the return value

Then run excpt 0 to enter the kernel.

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/blackfin/perf_event_open?kernel=all