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authorYunhong Jiang <yunhong.jiang@intel.com>2015-08-04 12:17:53 -0700
committerYunhong Jiang <yunhong.jiang@intel.com>2015-08-04 15:44:42 -0700
commit9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00 (patch)
tree1c9cafbcd35f783a87880a10f85d1a060db1a563 /kernel/arch/mips/include/asm/string.h
parent98260f3884f4a202f9ca5eabed40b1354c489b29 (diff)
Add the rt linux 4.1.3-rt3 as base
Import the rt linux 4.1.3-rt3 as OPNFV kvm base. It's from git://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-rt-devel.git linux-4.1.y-rt and the base is: commit 0917f823c59692d751951bf5ea699a2d1e2f26a2 Author: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Date: Sat Jul 25 12:13:34 2015 +0200 Prepare v4.1.3-rt3 Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> We lose all the git history this way and it's not good. We should apply another opnfv project repo in future. Change-Id: I87543d81c9df70d99c5001fbdf646b202c19f423 Signed-off-by: Yunhong Jiang <yunhong.jiang@intel.com>
Diffstat (limited to 'kernel/arch/mips/include/asm/string.h')
-rw-r--r--kernel/arch/mips/include/asm/string.h143
1 files changed, 143 insertions, 0 deletions
diff --git a/kernel/arch/mips/include/asm/string.h b/kernel/arch/mips/include/asm/string.h
new file mode 100644
index 000000000..29030cb39
--- /dev/null
+++ b/kernel/arch/mips/include/asm/string.h
@@ -0,0 +1,143 @@
+/*
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (c) 1994, 95, 96, 97, 98, 2000, 01 Ralf Baechle
+ * Copyright (c) 2000 by Silicon Graphics, Inc.
+ * Copyright (c) 2001 MIPS Technologies, Inc.
+ */
+#ifndef _ASM_STRING_H
+#define _ASM_STRING_H
+
+
+/*
+ * Most of the inline functions are rather naive implementations so I just
+ * didn't bother updating them for 64-bit ...
+ */
+#ifdef CONFIG_32BIT
+
+#ifndef IN_STRING_C
+
+#define __HAVE_ARCH_STRCPY
+static __inline__ char *strcpy(char *__dest, __const__ char *__src)
+{
+ char *__xdest = __dest;
+
+ __asm__ __volatile__(
+ ".set\tnoreorder\n\t"
+ ".set\tnoat\n"
+ "1:\tlbu\t$1,(%1)\n\t"
+ "addiu\t%1,1\n\t"
+ "sb\t$1,(%0)\n\t"
+ "bnez\t$1,1b\n\t"
+ "addiu\t%0,1\n\t"
+ ".set\tat\n\t"
+ ".set\treorder"
+ : "=r" (__dest), "=r" (__src)
+ : "0" (__dest), "1" (__src)
+ : "memory");
+
+ return __xdest;
+}
+
+#define __HAVE_ARCH_STRNCPY
+static __inline__ char *strncpy(char *__dest, __const__ char *__src, size_t __n)
+{
+ char *__xdest = __dest;
+
+ if (__n == 0)
+ return __xdest;
+
+ __asm__ __volatile__(
+ ".set\tnoreorder\n\t"
+ ".set\tnoat\n"
+ "1:\tlbu\t$1,(%1)\n\t"
+ "subu\t%2,1\n\t"
+ "sb\t$1,(%0)\n\t"
+ "beqz\t$1,2f\n\t"
+ "addiu\t%0,1\n\t"
+ "bnez\t%2,1b\n\t"
+ "addiu\t%1,1\n"
+ "2:\n\t"
+ ".set\tat\n\t"
+ ".set\treorder"
+ : "=r" (__dest), "=r" (__src), "=r" (__n)
+ : "0" (__dest), "1" (__src), "2" (__n)
+ : "memory");
+
+ return __xdest;
+}
+
+#define __HAVE_ARCH_STRCMP
+static __inline__ int strcmp(__const__ char *__cs, __const__ char *__ct)
+{
+ int __res;
+
+ __asm__ __volatile__(
+ ".set\tnoreorder\n\t"
+ ".set\tnoat\n\t"
+ "lbu\t%2,(%0)\n"
+ "1:\tlbu\t$1,(%1)\n\t"
+ "addiu\t%0,1\n\t"
+ "bne\t$1,%2,2f\n\t"
+ "addiu\t%1,1\n\t"
+ "bnez\t%2,1b\n\t"
+ "lbu\t%2,(%0)\n\t"
+#if defined(CONFIG_CPU_R3000)
+ "nop\n\t"
+#endif
+ "move\t%2,$1\n"
+ "2:\tsubu\t%2,$1\n"
+ "3:\t.set\tat\n\t"
+ ".set\treorder"
+ : "=r" (__cs), "=r" (__ct), "=r" (__res)
+ : "0" (__cs), "1" (__ct));
+
+ return __res;
+}
+
+#endif /* !defined(IN_STRING_C) */
+
+#define __HAVE_ARCH_STRNCMP
+static __inline__ int
+strncmp(__const__ char *__cs, __const__ char *__ct, size_t __count)
+{
+ int __res;
+
+ __asm__ __volatile__(
+ ".set\tnoreorder\n\t"
+ ".set\tnoat\n"
+ "1:\tlbu\t%3,(%0)\n\t"
+ "beqz\t%2,2f\n\t"
+ "lbu\t$1,(%1)\n\t"
+ "subu\t%2,1\n\t"
+ "bne\t$1,%3,3f\n\t"
+ "addiu\t%0,1\n\t"
+ "bnez\t%3,1b\n\t"
+ "addiu\t%1,1\n"
+ "2:\n\t"
+#if defined(CONFIG_CPU_R3000)
+ "nop\n\t"
+#endif
+ "move\t%3,$1\n"
+ "3:\tsubu\t%3,$1\n\t"
+ ".set\tat\n\t"
+ ".set\treorder"
+ : "=r" (__cs), "=r" (__ct), "=r" (__count), "=r" (__res)
+ : "0" (__cs), "1" (__ct), "2" (__count));
+
+ return __res;
+}
+#endif /* CONFIG_32BIT */
+
+#define __HAVE_ARCH_MEMSET
+extern void *memset(void *__s, int __c, size_t __count);
+
+#define __HAVE_ARCH_MEMCPY
+extern void *memcpy(void *__to, __const__ void *__from, size_t __n);
+
+#define __HAVE_ARCH_MEMMOVE
+extern void *memmove(void *__dest, __const__ void *__src, size_t __n);
+
+#endif /* _ASM_STRING_H */