merge x86_64 optimized string support

1 files changed, 33 insertions, 0 deletions

diff --git a/libc/string/x86_64/_glibc_inc.h b/libc/string/x86_64/_glibc_inc.h
new file mode 100644
index 000000000..f14b23c94
--- /dev/null
+++ b/libc/string/x86_64/_glibc_inc.h
@@ -0,0 +1,33 @@
+/*
+ * Setup some glibc defines so we can just drop in the
+ * asm files from glibc without any modification.
+ */
+
+#include <features.h>
+#include <bits/wordsize.h>
+
+#if __WORDSIZE == 32
+# define ENTRY_ALIGN 4
+#else
+# define ENTRY_ALIGN 2
+#endif
+
+#define ENTRY(sym) \
+	.global sym; \
+	.align  ENTRY_ALIGN; \
+	.type   sym,%function; \
+	sym:
+
+#define BP_SYM(sym) sym
+
+#define L(sym) LOC(sym)
+#define LOC(sym) \
+	.L ## sym
+
+#define END(sym) \
+	.size sym,.-sym;
+
+#undef weak_alias
+#define weak_alias(sym, alias) \
+	.weak alias; \
+    alias = sym;