perf_event_open on nds32

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)
number241 (0xf1)
abicommon
kconfigCONFIG_PERF_EVENTS
entry pointsys_perf_event_open
sinceLinux 4.17 or earlier (4.17 is the first release scanned for nds32)
man pageperf_event_open(2)
sourceelixir.bootlin.com

Registers

registervalue
r15241, 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 syscall to enter the kernel.

This architecture was removed from the Linux kernel in Linux 5.18. The newest release with a syscall table here is Linux 5.17. 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/nds32/perf_event_open?kernel=all