The ref_reloc_sym is always needed for the kernel map in order to check
for relocation. Consequently set it up when the kernel map is created.
Otherwise it was only being set up by 'perf record'.
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Tested-by: Jiri Olsa <jolsa@redhat.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Namhyung Kim <namhyung@gmail.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/r/1391004884-10334-5-git-send-email-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
+const char *ref_reloc_sym_names[] = {"_text", "_stext", NULL};
+
int machine__create_kernel_maps(struct machine *machine)
{
struct dso *kernel = machine__get_kernel(machine);
int machine__create_kernel_maps(struct machine *machine)
{
struct dso *kernel = machine__get_kernel(machine);
+ char filename[PATH_MAX];
+ const char *name;
+ u64 addr = 0;
+ int i;
+
+ machine__get_kallsyms_filename(machine, filename, PATH_MAX);
+
+ for (i = 0; (name = ref_reloc_sym_names[i]) != NULL; i++) {
+ addr = kallsyms__get_function_start(filename, name);
+ if (addr)
+ break;
+ }
+ if (!addr)
+ return -1;
if (kernel == NULL ||
__machine__create_kernel_maps(machine, kernel) < 0)
if (kernel == NULL ||
__machine__create_kernel_maps(machine, kernel) < 0)
* Now that we have all the maps created, just set the ->end of them:
*/
map_groups__fixup_end(&machine->kmaps);
* Now that we have all the maps created, just set the ->end of them:
*/
map_groups__fixup_end(&machine->kmaps);
+
+ if (maps__set_kallsyms_ref_reloc_sym(machine->vmlinux_maps, name,
+ addr)) {
+ machine__destroy_kernel_maps(machine);
+ return -1;
+ }
+
#define HOST_KERNEL_ID (-1)
#define DEFAULT_GUEST_KERNEL_ID (0)
#define HOST_KERNEL_ID (-1)
#define DEFAULT_GUEST_KERNEL_ID (0)
+extern const char *ref_reloc_sym_names[];
+
struct machine {
struct rb_node rb_node;
pid_t pid;
struct machine {
struct rb_node rb_node;
pid_t pid;