mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-09-24 11:25:43 +00:00
ec1891afae
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 <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 [ split from a larger patch ] Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
10 lines
283 B
C
10 lines
283 B
C
/* SPDX-License-Identifier: GPL-2.0 */
|
|
#ifndef ARCH_PERF_COMMON_H
|
|
#define ARCH_PERF_COMMON_H
|
|
|
|
#include "../util/env.h"
|
|
|
|
int perf_env__lookup_objdump(struct perf_env *env, const char **path);
|
|
bool perf_env__single_address_space(struct perf_env *env);
|
|
|
|
#endif /* ARCH_PERF_COMMON_H */
|