From b22da3d8526a935aa31e086e63f60ff3246cb61c Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Sat, 09 Dec 2023 07:24:11 +0000
Subject: [PATCH] add stmac read mac form eeprom
---
kernel/tools/perf/util/unwind-libunwind.c | 42 +++++++++++++++++++++++-------------------
1 files changed, 23 insertions(+), 19 deletions(-)
diff --git a/kernel/tools/perf/util/unwind-libunwind.c b/kernel/tools/perf/util/unwind-libunwind.c
index b029a5e..e89a547 100644
--- a/kernel/tools/perf/util/unwind-libunwind.c
+++ b/kernel/tools/perf/util/unwind-libunwind.c
@@ -1,29 +1,33 @@
// SPDX-License-Identifier: GPL-2.0
#include "unwind.h"
+#include "dso.h"
+#include "map.h"
#include "thread.h"
#include "session.h"
#include "debug.h"
#include "env.h"
+#include "callchain.h"
struct unwind_libunwind_ops __weak *local_unwind_libunwind_ops;
struct unwind_libunwind_ops __weak *x86_32_unwind_libunwind_ops;
struct unwind_libunwind_ops __weak *arm64_unwind_libunwind_ops;
-static void unwind__register_ops(struct thread *thread,
- struct unwind_libunwind_ops *ops)
+static void unwind__register_ops(struct maps *maps, struct unwind_libunwind_ops *ops)
{
- thread->unwind_libunwind_ops = ops;
+ maps->unwind_libunwind_ops = ops;
}
-int unwind__prepare_access(struct thread *thread, struct map *map,
- bool *initialized)
+int unwind__prepare_access(struct maps *maps, struct map *map, bool *initialized)
{
const char *arch;
enum dso_type dso_type;
struct unwind_libunwind_ops *ops = local_unwind_libunwind_ops;
int err;
- if (thread->addr_space) {
+ if (!dwarf_callchain_users)
+ return 0;
+
+ if (maps->addr_space) {
pr_debug("unwind: thread map already set, dso=%s\n",
map->dso->name);
if (initialized)
@@ -32,14 +36,14 @@
}
/* env->arch is NULL for live-mode (i.e. perf top) */
- if (!thread->mg->machine->env || !thread->mg->machine->env->arch)
+ if (!maps->machine->env || !maps->machine->env->arch)
goto out_register;
- dso_type = dso__type(map->dso, thread->mg->machine);
+ dso_type = dso__type(map->dso, maps->machine);
if (dso_type == DSO__TYPE_UNKNOWN)
return 0;
- arch = perf_env__arch(thread->mg->machine->env);
+ arch = perf_env__arch(maps->machine->env);
if (!strcmp(arch, "x86")) {
if (dso_type != DSO__TYPE_64BIT)
@@ -54,31 +58,31 @@
return 0;
}
out_register:
- unwind__register_ops(thread, ops);
+ unwind__register_ops(maps, ops);
- err = thread->unwind_libunwind_ops->prepare_access(thread);
+ err = maps->unwind_libunwind_ops->prepare_access(maps);
if (initialized)
*initialized = err ? false : true;
return err;
}
-void unwind__flush_access(struct thread *thread)
+void unwind__flush_access(struct maps *maps)
{
- if (thread->unwind_libunwind_ops)
- thread->unwind_libunwind_ops->flush_access(thread);
+ if (maps->unwind_libunwind_ops)
+ maps->unwind_libunwind_ops->flush_access(maps);
}
-void unwind__finish_access(struct thread *thread)
+void unwind__finish_access(struct maps *maps)
{
- if (thread->unwind_libunwind_ops)
- thread->unwind_libunwind_ops->finish_access(thread);
+ if (maps->unwind_libunwind_ops)
+ maps->unwind_libunwind_ops->finish_access(maps);
}
int unwind__get_entries(unwind_entry_cb_t cb, void *arg,
struct thread *thread,
struct perf_sample *data, int max_stack)
{
- if (thread->unwind_libunwind_ops)
- return thread->unwind_libunwind_ops->get_entries(cb, arg, thread, data, max_stack);
+ if (thread->maps->unwind_libunwind_ops)
+ return thread->maps->unwind_libunwind_ops->get_entries(cb, arg, thread, data, max_stack);
return 0;
}
--
Gitblit v1.6.2