add ax88772C AX88772C_eeprom_tools

hc

2024-05-10 61598093bbdd283a7edc367d900f223070ead8d2

 kernel/tools/testing/selftests/x86/unwind_vdso.c
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@@ -1,15 +1,7 @@
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+// SPDX-License-Identifier: GPL-2.0-only
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 /*
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  * unwind_vdso.c - tests unwind info for AT_SYSINFO in the vDSO
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  * Copyright (c) 2014-2015 Andrew Lutomirski
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- *
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- * This program is free software; you can redistribute it and/or modify
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- * it under the terms and conditions of the GNU General Public License,
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- * version 2, as published by the Free Software Foundation.
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- *
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- * This program is distributed in the hope it will be useful, but
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- * WITHOUT ANY WARRANTY; without even the implied warranty of
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- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
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- * General Public License for more details.
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  *
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  * This tests __kernel_vsyscall's unwind info.
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  */
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@@ -18,6 +10,8 @@
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 #include <features.h>
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 #include <stdio.h>
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+
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+#include "helpers.h"
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 #if defined(__GLIBC__) && __GLIBC__ == 2 && __GLIBC_MINOR__ < 16
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@@ -44,7 +38,6 @@
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 #include <stdbool.h>
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 #include <sys/ptrace.h>
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 #include <sys/user.h>
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-#include <sys/ucontext.h>
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 #include <link.h>
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 #include <sys/auxv.h>
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 #include <dlfcn.h>
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@@ -61,27 +54,6 @@
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 	if (sigaction(sig, &sa, 0))
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 		err(1, "sigaction");
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 }
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-
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-#ifdef __x86_64__
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-# define WIDTH "q"
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-#else
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-# define WIDTH "l"
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-#endif
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-
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-static unsigned long get_eflags(void)
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-{
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-	unsigned long eflags;
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-	asm volatile ("pushf" WIDTH "\n\tpop" WIDTH " %0" : "=rm" (eflags));
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-	return eflags;
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-}
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-
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-static void set_eflags(unsigned long eflags)
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-{
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-	asm volatile ("push" WIDTH " %0\n\tpopf" WIDTH
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-		      : : "rm" (eflags) : "flags");
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-}
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-
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-#define X86_EFLAGS_TF (1UL << 8)
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 static volatile sig_atomic_t nerrs;
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 static unsigned long sysinfo;