perf symbols: Add machine helper routines
Created when writing the first 'perf test' regression testing routine.
Cc: Frédéric Weisbecker <fweisbec@gmail.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
LKML-Reference: <new-submission>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
diff --git a/tools/perf/util/symbol.c b/tools/perf/util/symbol.c
index caa890f..4c0146a 100644
--- a/tools/perf/util/symbol.c
+++ b/tools/perf/util/symbol.c
@@ -1983,23 +1983,23 @@
self->has_build_id = true;
}
-static struct dso *dsos__create_kernel(struct machine *machine)
+static struct dso *machine__create_kernel(struct machine *self)
{
const char *vmlinux_name = NULL;
struct dso *kernel;
- if (machine__is_host(machine)) {
+ if (machine__is_host(self)) {
vmlinux_name = symbol_conf.vmlinux_name;
kernel = dso__new_kernel(vmlinux_name);
} else {
- if (machine__is_default_guest(machine))
+ if (machine__is_default_guest(self))
vmlinux_name = symbol_conf.default_guest_vmlinux_name;
- kernel = dso__new_guest_kernel(machine, vmlinux_name);
+ kernel = dso__new_guest_kernel(self, vmlinux_name);
}
if (kernel != NULL) {
- dso__read_running_kernel_build_id(kernel, machine);
- dsos__add(&machine->kernel_dsos, kernel);
+ dso__read_running_kernel_build_id(kernel, self);
+ dsos__add(&self->kernel_dsos, kernel);
}
return kernel;
}
@@ -2026,6 +2026,23 @@
return 0;
}
+int machine__create_kernel_maps(struct machine *self)
+{
+ struct dso *kernel = machine__create_kernel(self);
+
+ if (kernel == NULL ||
+ __machine__create_kernel_maps(self, kernel) < 0)
+ return -1;
+
+ if (symbol_conf.use_modules && machine__create_modules(self) < 0)
+ pr_debug("Problems creating module maps, continuing anyway...\n");
+ /*
+ * Now that we have all the maps created, just set the ->end of them:
+ */
+ map_groups__fixup_end(&self->kmaps);
+ return 0;
+}
+
static void vmlinux_path__exit(void)
{
while (--vmlinux_path__nr_entries >= 0) {
@@ -2144,25 +2161,12 @@
int machines__create_kernel_maps(struct rb_root *self, pid_t pid)
{
- struct dso *kernel;
struct machine *machine = machines__findnew(self, pid);
if (machine == NULL)
return -1;
- kernel = dsos__create_kernel(machine);
- if (kernel == NULL)
- return -1;
- if (__machine__create_kernel_maps(machine, kernel) < 0)
- return -1;
-
- if (symbol_conf.use_modules && machine__create_modules(machine) < 0)
- pr_debug("Problems creating module maps, continuing anyway...\n");
- /*
- * Now that we have all the maps created, just set the ->end of them:
- */
- map_groups__fixup_end(&machine->kmaps);
- return 0;
+ return machine__create_kernel_maps(machine);
}
static int hex(char ch)
@@ -2248,3 +2252,36 @@
return ret;
}
+
+int machine__load_kallsyms(struct machine *self, const char *filename,
+ enum map_type type, symbol_filter_t filter)
+{
+ struct map *map = self->vmlinux_maps[type];
+ int ret = dso__load_kallsyms(map->dso, filename, map, filter);
+
+ if (ret > 0) {
+ dso__set_loaded(map->dso, type);
+ /*
+ * Since /proc/kallsyms will have multiple sessions for the
+ * kernel, with modules between them, fixup the end of all
+ * sections.
+ */
+ __map_groups__fixup_end(&self->kmaps, type);
+ }
+
+ return ret;
+}
+
+int machine__load_vmlinux_path(struct machine *self, enum map_type type,
+ symbol_filter_t filter)
+{
+ struct map *map = self->vmlinux_maps[type];
+ int ret = dso__load_vmlinux_path(map->dso, map, filter);
+
+ if (ret > 0) {
+ dso__set_loaded(map->dso, type);
+ map__reloc_vmlinux(map);
+ }
+
+ return ret;
+}
