From 890e1df1bec891d9203724541e81f8fbe5183388 Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Mon, 19 Feb 2024 01:57:06 +0000
Subject: [PATCH] default settings GPIO PA4 PA6 PA3 PB5
---
kernel/arch/s390/include/asm/string.h | 56 +++++++++++++++++++++++++++++++++++++++++++++++++-------
1 files changed, 49 insertions(+), 7 deletions(-)
diff --git a/kernel/arch/s390/include/asm/string.h b/kernel/arch/s390/include/asm/string.h
index 50f26fc..4c0690f 100644
--- a/kernel/arch/s390/include/asm/string.h
+++ b/kernel/arch/s390/include/asm/string.h
@@ -12,15 +12,21 @@
#include <linux/types.h>
#endif
-#define __HAVE_ARCH_MEMCHR /* inline & arch function */
-#define __HAVE_ARCH_MEMCMP /* arch function */
#define __HAVE_ARCH_MEMCPY /* gcc builtin & arch function */
#define __HAVE_ARCH_MEMMOVE /* gcc builtin & arch function */
-#define __HAVE_ARCH_MEMSCAN /* inline & arch function */
#define __HAVE_ARCH_MEMSET /* gcc builtin & arch function */
#define __HAVE_ARCH_MEMSET16 /* arch function */
#define __HAVE_ARCH_MEMSET32 /* arch function */
#define __HAVE_ARCH_MEMSET64 /* arch function */
+
+void *memcpy(void *dest, const void *src, size_t n);
+void *memset(void *s, int c, size_t n);
+void *memmove(void *dest, const void *src, size_t n);
+
+#ifndef CONFIG_KASAN
+#define __HAVE_ARCH_MEMCHR /* inline & arch function */
+#define __HAVE_ARCH_MEMCMP /* arch function */
+#define __HAVE_ARCH_MEMSCAN /* inline & arch function */
#define __HAVE_ARCH_STRCAT /* inline & arch function */
#define __HAVE_ARCH_STRCMP /* arch function */
#define __HAVE_ARCH_STRCPY /* inline & arch function */
@@ -35,9 +41,6 @@
/* Prototypes for non-inlined arch strings functions. */
int memcmp(const void *s1, const void *s2, size_t n);
-void *memcpy(void *dest, const void *src, size_t n);
-void *memset(void *s, int c, size_t n);
-void *memmove(void *dest, const void *src, size_t n);
int strcmp(const char *s1, const char *s2);
size_t strlcat(char *dest, const char *src, size_t n);
size_t strlcpy(char *dest, const char *src, size_t size);
@@ -45,6 +48,7 @@
char *strncpy(char *dest, const char *src, size_t n);
char *strrchr(const char *s, int c);
char *strstr(const char *s1, const char *s2);
+#endif /* !CONFIG_KASAN */
#undef __HAVE_ARCH_STRCHR
#undef __HAVE_ARCH_STRNCHR
@@ -52,6 +56,32 @@
#undef __HAVE_ARCH_STRPBRK
#undef __HAVE_ARCH_STRSEP
#undef __HAVE_ARCH_STRSPN
+
+#if defined(CONFIG_KASAN) && !defined(__SANITIZE_ADDRESS__)
+
+extern void *__memcpy(void *dest, const void *src, size_t n);
+extern void *__memset(void *s, int c, size_t n);
+extern void *__memmove(void *dest, const void *src, size_t n);
+
+/*
+ * For files that are not instrumented (e.g. mm/slub.c) we
+ * should use not instrumented version of mem* functions.
+ */
+
+#define memcpy(dst, src, len) __memcpy(dst, src, len)
+#define memmove(dst, src, len) __memmove(dst, src, len)
+#define memset(s, c, n) __memset(s, c, n)
+#define strlen(s) __strlen(s)
+
+#define __no_sanitize_prefix_strfunc(x) __##x
+
+#ifndef __NO_FORTIFY
+#define __NO_FORTIFY /* FORTIFY_SOURCE uses __builtin_memcpy, etc. */
+#endif
+
+#else
+#define __no_sanitize_prefix_strfunc(x) x
+#endif /* defined(CONFIG_KASAN) && !defined(__SANITIZE_ADDRESS__) */
void *__memset16(uint16_t *s, uint16_t v, size_t count);
void *__memset32(uint32_t *s, uint32_t v, size_t count);
@@ -74,6 +104,7 @@
#if !defined(IN_ARCH_STRING_C) && (!defined(CONFIG_FORTIFY_SOURCE) || defined(__NO_FORTIFY))
+#ifdef __HAVE_ARCH_MEMCHR
static inline void *memchr(const void * s, int c, size_t n)
{
register int r0 asm("0") = (char) c;
@@ -88,7 +119,9 @@
: "+a" (ret), "+&a" (s) : "d" (r0) : "cc", "memory");
return (void *) ret;
}
+#endif
+#ifdef __HAVE_ARCH_MEMSCAN
static inline void *memscan(void *s, int c, size_t n)
{
register int r0 asm("0") = (char) c;
@@ -100,7 +133,9 @@
: "+a" (ret), "+&a" (s) : "d" (r0) : "cc", "memory");
return (void *) ret;
}
+#endif
+#ifdef __HAVE_ARCH_STRCAT
static inline char *strcat(char *dst, const char *src)
{
register int r0 asm("0") = 0;
@@ -116,7 +151,9 @@
: "d" (r0), "0" (0) : "cc", "memory" );
return ret;
}
+#endif
+#ifdef __HAVE_ARCH_STRCPY
static inline char *strcpy(char *dst, const char *src)
{
register int r0 asm("0") = 0;
@@ -129,8 +166,10 @@
: "cc", "memory");
return ret;
}
+#endif
-static inline size_t strlen(const char *s)
+#if defined(__HAVE_ARCH_STRLEN) || (defined(CONFIG_KASAN) && !defined(__SANITIZE_ADDRESS__))
+static inline size_t __no_sanitize_prefix_strfunc(strlen)(const char *s)
{
register unsigned long r0 asm("0") = 0;
const char *tmp = s;
@@ -141,7 +180,9 @@
: "+d" (r0), "+a" (tmp) : : "cc", "memory");
return r0 - (unsigned long) s;
}
+#endif
+#ifdef __HAVE_ARCH_STRNLEN
static inline size_t strnlen(const char * s, size_t n)
{
register int r0 asm("0") = 0;
@@ -154,6 +195,7 @@
: "+a" (end), "+a" (tmp) : "d" (r0) : "cc", "memory");
return end - s;
}
+#endif
#else /* IN_ARCH_STRING_C */
void *memchr(const void * s, int c, size_t n);
void *memscan(void *s, int c, size_t n);
--
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