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-rw-r--r--memdump/string.h23
1 files changed, 23 insertions, 0 deletions
diff --git a/memdump/string.h b/memdump/string.h
new file mode 100644
index 00000000..44f77dac
--- /dev/null
+++ b/memdump/string.h
@@ -0,0 +1,23 @@
+/*
+ * string.h
+ */
+
+#ifndef _STRING_H
+#define _STRING_H
+
+/* Standard routines */
+#define memcpy(a,b,c) __builtin_memcpy(a,b,c)
+#define memset(a,b,c) __builtin_memset(a,b,c)
+#define strcpy(a,b) __builtin_strcpy(a,b)
+#define strlen(a) __builtin_strlen(a)
+
+/* This only returns true or false */
+static inline int memcmp(const void *__m1, const void *__m2, unsigned int __n)
+{
+ _Bool rv;
+ asm volatile("cld ; repe ; cmpsb ; setne %0"
+ : "=abd" (rv), "+D" (__m1), "+S" (__m2), "+c" (__n));
+ return rv;
+}
+
+#endif /* _STRING_H */