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perf machine: Fix machine.vmlinux_maps to make sure to clear the old one 

Fix machine.vmlinux_maps to make sure to clear the old one if it is
renewal. This can leak the previous maps on the vmlinux_maps because
those are just overwritten.

Signed-off-by: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/20151209021133.10245.93730.stgit@localhost.localdomain
[ Simplified the memset, same end result ]
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Masami Hiramatsu 2015-12-09 11:11:33 +09:00 committed by Arnaldo Carvalho de Melo
parent d91130e90a
commit cc1121ab96
1 changed files with 5 additions and 0 deletions
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5
tools/perf/util/machine.c
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@ -44,6 +44,8 @@ int machine__init(struct machine *machine, const char *root_dir, pid_t pid)
machine->comm_exec = false;
machine->kernel_start = 0;
memset(machine->vmlinux_maps, 0, sizeof(machine->vmlinux_maps));
machine->root_dir = strdup(root_dir);
if (machine->root_dir == NULL)
return -ENOMEM;
@ -770,6 +772,9 @@ int __machine__create_kernel_maps(struct machine *machine, struct dso *kernel)
enum map_type type;
u64 start = machine__get_running_kernel_start(machine, NULL);
/* In case of renewal the kernel map, destroy previous one */
machine__destroy_kernel_maps(machine);
for (type = 0; type < MAP__NR_TYPES; ++type) {
struct kmap *kmap;
struct map *map;