From 8ac6c7a54ed1b98d142dce24b11c6de6a1e239a5 Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Tue, 22 Oct 2024 10:36:11 +0000
Subject: [PATCH] 修改4g拨号为QMI,需要在系统里后台执行quectel-CM
---
kernel/tools/testing/selftests/x86/unwind_vdso.c | 34 +++-------------------------------
1 files changed, 3 insertions(+), 31 deletions(-)
diff --git a/kernel/tools/testing/selftests/x86/unwind_vdso.c b/kernel/tools/testing/selftests/x86/unwind_vdso.c
index 00a26a8..4c311e1 100644
--- a/kernel/tools/testing/selftests/x86/unwind_vdso.c
+++ b/kernel/tools/testing/selftests/x86/unwind_vdso.c
@@ -1,15 +1,7 @@
+// SPDX-License-Identifier: GPL-2.0-only
/*
* unwind_vdso.c - tests unwind info for AT_SYSINFO in the vDSO
* Copyright (c) 2014-2015 Andrew Lutomirski
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms and conditions of the GNU General Public License,
- * version 2, as published by the Free Software Foundation.
- *
- * This program is distributed in the hope it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * General Public License for more details.
*
* This tests __kernel_vsyscall's unwind info.
*/
@@ -18,6 +10,8 @@
#include <features.h>
#include <stdio.h>
+
+#include "helpers.h"
#if defined(__GLIBC__) && __GLIBC__ == 2 && __GLIBC_MINOR__ < 16
@@ -44,7 +38,6 @@
#include <stdbool.h>
#include <sys/ptrace.h>
#include <sys/user.h>
-#include <sys/ucontext.h>
#include <link.h>
#include <sys/auxv.h>
#include <dlfcn.h>
@@ -61,27 +54,6 @@
if (sigaction(sig, &sa, 0))
err(1, "sigaction");
}
-
-#ifdef __x86_64__
-# define WIDTH "q"
-#else
-# define WIDTH "l"
-#endif
-
-static unsigned long get_eflags(void)
-{
- unsigned long eflags;
- asm volatile ("pushf" WIDTH "\n\tpop" WIDTH " %0" : "=rm" (eflags));
- return eflags;
-}
-
-static void set_eflags(unsigned long eflags)
-{
- asm volatile ("push" WIDTH " %0\n\tpopf" WIDTH
- : : "rm" (eflags) : "flags");
-}
-
-#define X86_EFLAGS_TF (1UL << 8)
static volatile sig_atomic_t nerrs;
static unsigned long sysinfo;
--
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