/* * Copyright 2014, Michael Ellerman, IBM Corp. * Licensed under GPLv2. */ #include <stdio.h> #include <stdlib.h> #include "ebb.h" /* * Test various attributes of the EBB event are enforced. */ int event_attributes(void) { struct event event, leader; event_init(&event, 0x1001e); event_leader_ebb_init(&event); /* Expected to succeed */ FAIL_IF(event_open(&event)); event_close(&event); event_init(&event, 0x001e); /* CYCLES - no PMC specified */ event_leader_ebb_init(&event); /* Expected to fail, no PMC specified */ FAIL_IF(event_open(&event) == 0); event_init(&event, 0x2001e); event_leader_ebb_init(&event); event.attr.exclusive = 0; /* Expected to fail, not exclusive */ FAIL_IF(event_open(&event) == 0); event_init(&event, 0x3001e); event_leader_ebb_init(&event); event.attr.freq = 1; /* Expected to fail, sets freq */ FAIL_IF(event_open(&event) == 0); event_init(&event, 0x4001e); event_leader_ebb_init(&event); event.attr.sample_period = 1; /* Expected to fail, sets sample_period */ FAIL_IF(event_open(&event) == 0); event_init(&event, 0x1001e); event_leader_ebb_init(&event); event.attr.enable_on_exec = 1; /* Expected to fail, sets enable_on_exec */ FAIL_IF(event_open(&event) == 0); event_init(&event, 0x1001e); event_leader_ebb_init(&event); event.attr.inherit = 1; /* Expected to fail, sets inherit */ FAIL_IF(event_open(&event) == 0); event_init(&leader, 0x1001e); event_leader_ebb_init(&leader); FAIL_IF(event_open(&leader)); event_init(&event, 0x20002); event_ebb_init(&event); /* Expected to succeed */ FAIL_IF(event_open_with_group(&event, leader.fd)); event_close(&leader); event_close(&event); event_init(&leader, 0x1001e); event_leader_ebb_init(&leader); FAIL_IF(event_open(&leader)); event_init(&event, 0x20002); /* Expected to fail, event doesn't request EBB, leader does */ FAIL_IF(event_open_with_group(&event, leader.fd) == 0); event_close(&leader); event_init(&leader, 0x1001e); event_leader_ebb_init(&leader); /* Clear the EBB flag */ leader.attr.config &= ~(1ull << 63); FAIL_IF(event_open(&leader)); event_init(&event, 0x20002); event_ebb_init(&event); /* Expected to fail, leader doesn't request EBB */ FAIL_IF(event_open_with_group(&event, leader.fd) == 0); event_close(&leader); event_init(&leader, 0x1001e); event_leader_ebb_init(&leader); leader.attr.exclusive = 0; /* Expected to fail, leader isn't exclusive */ FAIL_IF(event_open(&leader) == 0); event_init(&leader, 0x1001e); event_leader_ebb_init(&leader); leader.attr.pinned = 0; /* Expected to fail, leader isn't pinned */ FAIL_IF(event_open(&leader) == 0); event_init(&event, 0x1001e); event_leader_ebb_init(&event); /* Expected to fail, not a task event */ SKIP_IF(require_paranoia_below(1)); FAIL_IF(event_open_with_cpu(&event, 0) == 0); return 0; } int main(void) { return test_harness(event_attributes, "event_attributes"); }