GitHub-Mirror/Star64_linux
2
0
Fork 0
mirror of https://github.com/Fishwaldo/Star64_linux.git synced 2025-06-27 17:11:46 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions

perf thread: Add fallback functions for cases where cpumode is insufficient

Browse source 
For branch stacks or branch samples, the sample cpumode might not be
correct because it applies only to the sample 'ip' and not necessary to
'addr' or branch stack addresses. Add fallback functions that can be
used to deal with those cases

Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: David S. Miller <davem@davemloft.net>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Leo Yan <leo.yan@linaro.org>
Cc: Mathieu Poirier <mathieu.poirier@linaro.org>
Cc: stable@vger.kernel.org # 4.19
Link: http://lkml.kernel.org/r/20181106210712.12098-2-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Adrian Hunter 2018-11-06 23:07:10 +02:00 • committed by Arnaldo Carvalho de Melo
parent ec1891afae
commit 8e80ad9983
4 changed files with 60 additions and 0 deletions
Download patch file Download diff file Expand all files Collapse all files

27
tools/perf/util/machine.c
View file

@ -2592,6 +2592,33 @@ int machine__get_kernel_start(struct machine *machine)
return err;
}
u8 machine__addr_cpumode(struct machine *machine, u8 cpumode, u64 addr)
{
u8 addr_cpumode = cpumode;
bool kernel_ip;
if (!machine->single_address_space)
goto out;
kernel_ip = machine__kernel_ip(machine, addr);
switch (cpumode) {
case PERF_RECORD_MISC_KERNEL:
case PERF_RECORD_MISC_USER:
addr_cpumode = kernel_ip ? PERF_RECORD_MISC_KERNEL :
PERF_RECORD_MISC_USER;
break;
case PERF_RECORD_MISC_GUEST_KERNEL:
case PERF_RECORD_MISC_GUEST_USER:
addr_cpumode = kernel_ip ? PERF_RECORD_MISC_GUEST_KERNEL :
PERF_RECORD_MISC_GUEST_USER;
break;
default:
break;
}
out:
return addr_cpumode;
}
struct dso *machine__findnew_dso(struct machine *machine, const char *filename)
{
return dsos__findnew(&machine->dsos, filename);