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| author | Adrian Hunter <[email protected]> | 2018-11-06 21:07:10 +0000 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <[email protected]> | 2018-12-17 17:54:07 +0000 |
| commit | ec1891afae740be581ecf5abc8bda74c4549203f (patch) | |
| tree | c149a4b9797127900933cab6b20b09841660e510 /tools/perf/util/scripting-engines/trace-event-python.c | |
| parent | perf env: Also consider env->arch == NULL as local operation (diff) | |
| download | kernel-ec1891afae740be581ecf5abc8bda74c4549203f.tar.gz kernel-ec1891afae740be581ecf5abc8bda74c4549203f.zip | |
perf machine: Record if a arch has a single user/kernel address space
Some architectures have a single address space for kernel and user
addresses, which makes it possible to determine if an address is in
kernel space or user space. Some don't, e.g.: sparc.
Cache that info in perf_env so that, for instance, code needing to
fallback failed symbol lookups at the kernel space in single address
space arches can lookup at userspace.
Signed-off-by: Adrian Hunter <[email protected]>
Cc: Andi Kleen <[email protected]>
Cc: David S. Miller <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Leo Yan <[email protected]>
Cc: Mathieu Poirier <[email protected]>
Cc: [email protected] # 4.19
Link: http://lkml.kernel.org/r/[email protected]
[ split from a larger patch ]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
Diffstat (limited to 'tools/perf/util/scripting-engines/trace-event-python.c')
0 files changed, 0 insertions, 0 deletions