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perf machine: Allow for extra kernel maps

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Identify extra kernel maps by name so that they can be distinguished
from the kernel map and module maps.

Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Andy Lutomirski <luto@kernel.org>
Cc: Dave Hansen <dave.hansen@linux.intel.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Joerg Roedel <joro@8bytes.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: x86@kernel.org
Link: http://lkml.kernel.org/r/1526986485-6562-8-git-send-email-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Adrian Hunter 2018-05-22 13:54:35 +03:00 • committed by Arnaldo Carvalho de Melo
parent 4d004365e2
commit 5759a6820a
5 changed files with 34 additions and 12 deletions
Download patch file Download diff file Expand all files Collapse all files

8
tools/perf/util/machine.c
View file

@ -856,6 +856,7 @@ struct extra_kernel_map {
u64 start;
u64 end;
u64 pgoff;
char name[KMAP_NAME_LEN];
};
static int machine__create_extra_kernel_map(struct machine *machine,
@ -875,11 +876,12 @@ static int machine__create_extra_kernel_map(struct machine *machine,
kmap = map__kmap(map);
kmap->kmaps = &machine->kmaps;
strlcpy(kmap->name, xm->name, KMAP_NAME_LEN);
map_groups__insert(&machine->kmaps, map);
pr_debug2("Added extra kernel map %" PRIx64 "-%" PRIx64 "\n",
map->start, map->end);
pr_debug2("Added extra kernel map %s %" PRIx64 "-%" PRIx64 "\n",
kmap->name, map->start, map->end);
map__put(map);
@ -940,6 +942,8 @@ int machine__map_x86_64_entry_trampolines(struct machine *machine,
.pgoff = pgoff,
};
strlcpy(xm.name, ENTRY_TRAMPOLINE_NAME, KMAP_NAME_LEN);
if (machine__create_extra_kernel_map(machine, kernel, &xm) < 0)
return -1;
}