Comment 10 for bug 1212126

PREFERRED_PROVIDER_virtual/kernel = "linux-linaro-aarch64" to site.conf,, and add perf and kernel-vmlinux to the lamp images, we get somewhat working perf:

# perf --version
perf version 3.15.0-rc8
# perf stat true
          3.522720 task-clock (msec) # 0.444 CPUs utilized
                 0 context-switches # 0.000 K/sec
                 0 cpu-migrations # 0.000 K/sec
                35 page-faults # 0.010 M/sec
            350132 cycles # 0.099 GHz
   <not supported> stalled-cycles-frontend
   <not supported> stalled-cycles-backend
            350132 instructions # 1.00 insns per cycle
   <not supported> branches
                 0 branch-misses # 0.00% of all branches

       0.007927360 seconds time elapsed
 perf test
[ 64.043275] random: nonblocking pool is initialized
 1: vmlinux symtab matches kallsyms : FAILED!
 2: detect open syscall event : FAILED!
 3: detect open syscall event on all cpus : FAILED!
 4: read samples using the mmap interface : FAILED!
 5: parse events tests :Can't open event dir: No such file or directory
Can't open event dir: No such file or directory
 FAILED!
 6: Validate PERF_RECORD_* events & perf_sample fields :[ 71.466116] hw perfevents: unable to set irq affinity (irq=93, cpu=1)
[ 71.466219] hw perfevents: unable to set irq affinity (irq=94, cpu=2)
[ 71.466323] hw perfevents: unable to set irq affinity (irq=95, cpu=3)
 FAILED!
 7: Test perf pmu format parsing : Ok
 8: Test dso data interface : Ok
 9: roundtrip evsel->name check : Ok
10: Check parsing of sched tracepoints fields : Ok
11: Generate and check syscalls:sys_enter_open event fields: FAILED!
12: struct perf_event_attr setup :sh: /data/oe/build-armv8/tmp-eglibc/sysroots/x86_64-linux/usr/bin/python-native/python: No such file or directory
 FAILED!
13: Test matching and linking multiple hists : Ok
14: Try 'use perf' in python, checking link problems : FAILED!
15: Test breakpoint overflow signal handler : FAILED!
16: Test breakpoint overflow sampling : FAILED!
17: Test number of exit event of a simple workload :[ 73.809814] hw perfevents: unable to set irq affinity (irq=93, cpu=1)
[ 73.809918] hw perfevents: unable to set irq affinity (irq=94, cpu=2)
[ 73.810021] hw perfevents: unable to set irq affinity (irq=95, cpu=3)
 Ok
18: Test software clock events have valid period values : Ok
19: Test object code reading :[ 76.683921] hw perfevents: unable to set irq affinity (irq=93, cpu=1)
 FAILED!
20: Test sample parsing : Ok
21: Test using a dummy software event to keep tracking : Ok
22: Test parsing with no sample_id_all bit set : Ok