diff --git a/HACKING.txt b/HACKING.txt
index f614b69..6c142e1 100644
--- a/HACKING.txt
+++ b/HACKING.txt
@@ -84,9 +84,7 @@
   netbsd/
   stdio/
   stdlib/
-  string/
   unistd/
-  wchar/
     # These are legacy files of unknown provenance. In the past, bionic was a
     # mess of random versions of random files from all three of FreeBSD, NetBSD,
     # and OpenBSD! We've been working to clean that up, but these directories
diff --git a/libc/Android.mk b/libc/Android.mk
index 1bee427..e401a1c 100644
--- a/libc/Android.mk
+++ b/libc/Android.mk
@@ -45,7 +45,6 @@
     bionic/ether_aton.c \
     bionic/ether_ntoa.c \
     bionic/fdprintf.c \
-    bionic/flockfile.c \
     bionic/ftime.c \
     bionic/fts.c \
     bionic/getdtablesize.c \
@@ -107,10 +106,7 @@
     stdlib/strtod.c \
     unistd/alarm.c \
     unistd/syslog.c \
-    unistd/system.c \
     unistd/time.c \
-    wchar/wcswidth.c \
-    wchar/wcsxfrm.c \
 
 # Fortify implementations of libc functions.
 libc_common_src_files += \
@@ -149,6 +145,7 @@
     bionic/eventfd_read.cpp \
     bionic/eventfd_write.cpp \
     bionic/ffs.cpp \
+    bionic/flockfile.cpp \
     bionic/fork.cpp \
     bionic/futimens.cpp \
     bionic/getauxval.cpp \
@@ -261,7 +258,6 @@
     upstream-freebsd/lib/libc/string/wcscspn.c \
     upstream-freebsd/lib/libc/string/wcsdup.c \
     upstream-freebsd/lib/libc/string/wcslcat.c \
-    upstream-freebsd/lib/libc/string/wcslcpy.c \
     upstream-freebsd/lib/libc/string/wcsncasecmp.c \
     upstream-freebsd/lib/libc/string/wcsncat.c \
     upstream-freebsd/lib/libc/string/wcsncmp.c \
@@ -319,6 +315,81 @@
     upstream-netbsd/lib/libc/thread-stub/__isthreaded.c \
     upstream-netbsd/lib/libc/unistd/killpg.c \
 
+libc_upstream_openbsd_src_files := \
+    upstream-openbsd/lib/libc/gen/exec.c \
+    upstream-openbsd/lib/libc/gen/ftok.c \
+    upstream-openbsd/lib/libc/gen/fnmatch.c \
+    upstream-openbsd/lib/libc/gen/toupper_.c \
+    upstream-openbsd/lib/libc/gen/tolower_.c \
+    upstream-openbsd/lib/libc/string/strstr.c \
+    upstream-openbsd/lib/libc/string/strsep.c \
+    upstream-openbsd/lib/libc/string/wcslcpy.c \
+    upstream-openbsd/lib/libc/string/strcasecmp.c \
+    upstream-openbsd/lib/libc/string/strdup.c \
+    upstream-openbsd/lib/libc/string/strcspn.c \
+    upstream-openbsd/lib/libc/string/strtok.c \
+    upstream-openbsd/lib/libc/string/strpbrk.c \
+    upstream-openbsd/lib/libc/string/strspn.c \
+    upstream-openbsd/lib/libc/string/wcswidth.c \
+    upstream-openbsd/lib/libc/string/strndup.c \
+    upstream-openbsd/lib/libc/stdio/ungetc.c \
+    upstream-openbsd/lib/libc/stdio/vsnprintf.c \
+    upstream-openbsd/lib/libc/stdio/tmpnam.c \
+    upstream-openbsd/lib/libc/stdio/setbuffer.c \
+    upstream-openbsd/lib/libc/stdio/fsetpos.c \
+    upstream-openbsd/lib/libc/stdio/setbuf.c \
+    upstream-openbsd/lib/libc/stdio/vprintf.c \
+    upstream-openbsd/lib/libc/stdio/perror.c \
+    upstream-openbsd/lib/libc/stdio/remove.c \
+    upstream-openbsd/lib/libc/stdio/getc.c \
+    upstream-openbsd/lib/libc/stdio/funopen.c \
+    upstream-openbsd/lib/libc/stdio/ferror.c \
+    upstream-openbsd/lib/libc/stdio/putchar.c \
+    upstream-openbsd/lib/libc/stdio/vscanf.c \
+    upstream-openbsd/lib/libc/stdio/fflush.c \
+    upstream-openbsd/lib/libc/stdio/fpurge.c \
+    upstream-openbsd/lib/libc/stdio/fputs.c \
+    upstream-openbsd/lib/libc/stdio/tempnam.c \
+    upstream-openbsd/lib/libc/stdio/printf.c \
+    upstream-openbsd/lib/libc/stdio/fileno.c \
+    upstream-openbsd/lib/libc/stdio/stdio.c \
+    upstream-openbsd/lib/libc/stdio/getdelim.c \
+    upstream-openbsd/lib/libc/stdio/fseek.c \
+    upstream-openbsd/lib/libc/stdio/fputc.c \
+    upstream-openbsd/lib/libc/stdio/fgetln.c \
+    upstream-openbsd/lib/libc/stdio/fdopen.c \
+    upstream-openbsd/lib/libc/stdio/fgets.c \
+    upstream-openbsd/lib/libc/stdio/fgetc.c \
+    upstream-openbsd/lib/libc/stdio/feof.c \
+    upstream-openbsd/lib/libc/stdio/vasprintf.c \
+    upstream-openbsd/lib/libc/stdio/refill.c \
+    upstream-openbsd/lib/libc/stdio/getline.c \
+    upstream-openbsd/lib/libc/stdio/rewind.c \
+    upstream-openbsd/lib/libc/stdio/wbuf.c \
+    upstream-openbsd/lib/libc/stdio/gets.c \
+    upstream-openbsd/lib/libc/stdio/fgetpos.c \
+    upstream-openbsd/lib/libc/stdio/fscanf.c \
+    upstream-openbsd/lib/libc/stdio/putc.c \
+    upstream-openbsd/lib/libc/stdio/vsprintf.c \
+    upstream-openbsd/lib/libc/stdio/rget.c \
+    upstream-openbsd/lib/libc/stdio/clrerr.c \
+    upstream-openbsd/lib/libc/stdio/scanf.c \
+    upstream-openbsd/lib/libc/stdio/puts.c \
+    upstream-openbsd/lib/libc/stdio/getchar.c \
+    upstream-openbsd/lib/libc/stdio/ftell.c \
+    upstream-openbsd/lib/libc/stdio/fwalk.c \
+    upstream-openbsd/lib/libc/stdlib/strtoul.c \
+    upstream-openbsd/lib/libc/stdlib/strtoull.c \
+    upstream-openbsd/lib/libc/stdlib/atoi.c \
+    upstream-openbsd/lib/libc/stdlib/atoll.c \
+    upstream-openbsd/lib/libc/stdlib/atol.c \
+    upstream-openbsd/lib/libc/stdlib/strtoimax.c \
+    upstream-openbsd/lib/libc/stdlib/strtoumax.c \
+    upstream-openbsd/lib/libc/stdlib/strtoll.c \
+    upstream-openbsd/lib/libc/stdlib/strtol.c \
+    upstream-openbsd/lib/libc/stdlib/system.c \
+    upstream-openbsd/lib/libc/locale/wcsxfrm.c \
+
 libc_arch_static_src_files := \
     bionic/dl_iterate_phdr_static.cpp \
 
@@ -514,7 +585,7 @@
 
 include $(CLEAR_VARS)
 
-LOCAL_SRC_FILES := $(call all-c-files-under,upstream-openbsd)
+LOCAL_SRC_FILES := $(libc_upstream_openbsd_src_files)
 LOCAL_CFLAGS := \
     $(libc_common_cflags) \
     -I$(LOCAL_PATH)/upstream-openbsd \
diff --git a/libc/arch-arm/arm.mk b/libc/arch-arm/arm.mk
index 55f9978..89a1ce0 100644
--- a/libc/arch-arm/arm.mk
+++ b/libc/arch-arm/arm.mk
@@ -10,19 +10,13 @@
     bionic/mmap.cpp
 
 libc_common_src_files_arm += \
+    bionic/index.cpp \
     bionic/memchr.c \
     bionic/memmove.c.arm \
     bionic/memrchr.c \
     bionic/strchr.cpp \
     bionic/strnlen.c \
-    string/bcopy.c \
-    string/index.c \
-    string/strlcat.c \
-    string/strlcpy.c \
-    string/strncat.c \
-    string/strncmp.c \
-    string/strncpy.c \
-    string/strrchr.c \
+    bionic/strrchr.cpp \
     upstream-freebsd/lib/libc/string/wcscat.c \
     upstream-freebsd/lib/libc/string/wcschr.c \
     upstream-freebsd/lib/libc/string/wcscmp.c \
@@ -30,6 +24,12 @@
     upstream-freebsd/lib/libc/string/wcslen.c \
     upstream-freebsd/lib/libc/string/wcsrchr.c \
     upstream-freebsd/lib/libc/string/wmemcmp.c \
+    upstream-openbsd/lib/libc/string/bcopy.c \
+    upstream-openbsd/lib/libc/string/strlcat.c \
+    upstream-openbsd/lib/libc/string/strlcpy.c \
+    upstream-openbsd/lib/libc/string/strncat.c \
+    upstream-openbsd/lib/libc/string/strncmp.c \
+    upstream-openbsd/lib/libc/string/strncpy.c \
 
 # The C++ fortify function implementations for which there is an
 # arm assembler version.
diff --git a/libc/arch-arm/generic/generic.mk b/libc/arch-arm/generic/generic.mk
index 063d893..2bc84e0 100644
--- a/libc/arch-arm/generic/generic.mk
+++ b/libc/arch-arm/generic/generic.mk
@@ -1,9 +1,9 @@
 libc_bionic_src_files_arm += \
     arch-arm/generic/bionic/memcpy.S \
     arch-arm/generic/bionic/memset.S \
-    string/strcat.c \
     arch-arm/generic/bionic/strcmp.S \
     arch-arm/generic/bionic/strcpy.S \
     arch-arm/generic/bionic/strlen.c \
     bionic/__strcat_chk.cpp \
     bionic/__strcpy_chk.cpp \
+    upstream-openbsd/lib/libc/string/strcat.c \
diff --git a/libc/arch-arm64/arm64.mk b/libc/arch-arm64/arm64.mk
index a645949..76c610a 100644
--- a/libc/arch-arm64/arm64.mk
+++ b/libc/arch-arm64/arm64.mk
@@ -1,27 +1,17 @@
 # arm64 specific configs
 
 libc_common_src_files_arm64 := \
-    bionic/memchr.c   \
-    bionic/memcmp.c   \
-    bionic/memcpy.c   \
-    bionic/memmove.c  \
-    bionic/memrchr.c  \
-    bionic/memset.c   \
+    bionic/index.cpp \
+    bionic/memchr.c \
+    bionic/__memcmp16.cpp \
+    bionic/memcmp.c \
+    bionic/memcpy.cpp \
+    bionic/memmove.c \
+    bionic/memrchr.c \
+    bionic/memset.c \
     bionic/strchr.cpp \
-    bionic/strnlen.c  \
-    string/bcopy.c    \
-    string/index.c    \
-    string/memcmp16.c \
-    string/strcat.c   \
-    string/strcmp.c   \
-    string/strcpy.c   \
-    string/strlcat.c  \
-    string/strlcpy.c  \
-    string/strlen.c   \
-    string/strncat.c  \
-    string/strncmp.c  \
-    string/strncpy.c  \
-    string/strrchr.c  \
+    bionic/strnlen.c \
+    bionic/strrchr.cpp \
     upstream-freebsd/lib/libc/string/wcscat.c \
     upstream-freebsd/lib/libc/string/wcschr.c \
     upstream-freebsd/lib/libc/string/wcscmp.c \
@@ -29,6 +19,16 @@
     upstream-freebsd/lib/libc/string/wcslen.c \
     upstream-freebsd/lib/libc/string/wcsrchr.c \
     upstream-freebsd/lib/libc/string/wmemcmp.c \
+    upstream-openbsd/lib/libc/string/bcopy.c \
+    upstream-openbsd/lib/libc/string/strcat.c \
+    upstream-openbsd/lib/libc/string/strcmp.c \
+    upstream-openbsd/lib/libc/string/strcpy.c \
+    upstream-openbsd/lib/libc/string/strlcat.c \
+    upstream-openbsd/lib/libc/string/strlcpy.c \
+    upstream-openbsd/lib/libc/string/strlen.c \
+    upstream-openbsd/lib/libc/string/strncat.c \
+    upstream-openbsd/lib/libc/string/strncmp.c \
+    upstream-openbsd/lib/libc/string/strncpy.c \
 
 # Fortify implementations of libc functions.
 libc_common_src_files_arm64 += \
diff --git a/libc/arch-mips/mips.mk b/libc/arch-mips/mips.mk
index 0fa1ed6..1af4a65 100644
--- a/libc/arch-mips/mips.mk
+++ b/libc/arch-mips/mips.mk
@@ -10,23 +10,14 @@
      bionic/mmap.cpp
 
 libc_common_src_files_mips += \
+    bionic/index.cpp \
     bionic/memchr.c \
     bionic/memcmp.c \
     bionic/memmove.c \
     bionic/memrchr.c \
     bionic/strchr.cpp \
     bionic/strnlen.c \
-    string/bcopy.c \
-    string/index.c \
-    string/strcat.c \
-    string/strcmp.c \
-    string/strcpy.c \
-    string/strlcat.c \
-    string/strlcpy.c \
-    string/strncat.c \
-    string/strncmp.c \
-    string/strncpy.c \
-    string/strrchr.c \
+    bionic/strrchr.cpp \
     upstream-freebsd/lib/libc/string/wcscat.c \
     upstream-freebsd/lib/libc/string/wcschr.c \
     upstream-freebsd/lib/libc/string/wcscmp.c \
@@ -34,6 +25,15 @@
     upstream-freebsd/lib/libc/string/wcslen.c \
     upstream-freebsd/lib/libc/string/wcsrchr.c \
     upstream-freebsd/lib/libc/string/wmemcmp.c \
+    upstream-openbsd/lib/libc/string/bcopy.c \
+    upstream-openbsd/lib/libc/string/strcat.c \
+    upstream-openbsd/lib/libc/string/strcmp.c \
+    upstream-openbsd/lib/libc/string/strcpy.c \
+    upstream-openbsd/lib/libc/string/strlcat.c \
+    upstream-openbsd/lib/libc/string/strlcpy.c \
+    upstream-openbsd/lib/libc/string/strncat.c \
+    upstream-openbsd/lib/libc/string/strncmp.c \
+    upstream-openbsd/lib/libc/string/strncpy.c \
 
 # Fortify implementations of libc functions.
 libc_common_src_files_mips += \
diff --git a/libc/arch-mips64/mips64.mk b/libc/arch-mips64/mips64.mk
index 11ceb40..28806e1 100644
--- a/libc/arch-mips64/mips64.mk
+++ b/libc/arch-mips64/mips64.mk
@@ -1,30 +1,31 @@
 # mips64 specific configs
 
 libc_common_src_files_mips64 := \
-  bionic/memchr.c \
-  bionic/memcmp.c \
-  bionic/memmove.c \
-  bionic/memrchr.c \
-  bionic/strchr.cpp \
-  bionic/strnlen.c \
-  string/bcopy.c \
-  string/index.c \
-  string/strcat.c \
-  string/strcmp.c \
-  string/strcpy.c \
-  string/strlcat.c \
-  string/strlcpy.c \
-  string/strncat.c \
-  string/strncmp.c \
-  string/strncpy.c \
-  string/strrchr.c \
-  upstream-freebsd/lib/libc/string/wcscat.c \
-  upstream-freebsd/lib/libc/string/wcschr.c \
-  upstream-freebsd/lib/libc/string/wcscmp.c \
-  upstream-freebsd/lib/libc/string/wcscpy.c \
-  upstream-freebsd/lib/libc/string/wcslen.c \
-  upstream-freebsd/lib/libc/string/wcsrchr.c \
-  upstream-freebsd/lib/libc/string/wmemcmp.c \
+    bionic/index.cpp \
+    bionic/memchr.c \
+    bionic/memcmp.c \
+    bionic/memmove.c \
+    bionic/memrchr.c \
+    bionic/strchr.cpp \
+    bionic/strnlen.c \
+    bionic/strrchr.cpp \
+    upstream-freebsd/lib/libc/string/wcscat.c \
+    upstream-freebsd/lib/libc/string/wcschr.c \
+    upstream-freebsd/lib/libc/string/wcscmp.c \
+    upstream-freebsd/lib/libc/string/wcscpy.c \
+    upstream-freebsd/lib/libc/string/wcslen.c \
+    upstream-freebsd/lib/libc/string/wcsrchr.c \
+    upstream-freebsd/lib/libc/string/wmemcmp.c \
+    upstream-openbsd/lib/libc/string/bcopy.c \
+    upstream-openbsd/lib/libc/string/strcat.c \
+    upstream-openbsd/lib/libc/string/strcmp.c \
+    upstream-openbsd/lib/libc/string/strcpy.c \
+    upstream-openbsd/lib/libc/string/strlcat.c \
+    upstream-openbsd/lib/libc/string/strlcpy.c \
+    upstream-openbsd/lib/libc/string/strlen.c \
+    upstream-openbsd/lib/libc/string/strncat.c \
+    upstream-openbsd/lib/libc/string/strncmp.c \
+    upstream-openbsd/lib/libc/string/strncpy.c \
 
 # Fortify implementations of libc functions.
 libc_common_src_files_mips64 += \
@@ -54,10 +55,8 @@
 # FIXME TODO
 ## libc_bionic_src_files_mips64 += arch-mips64/string/memcpy.S
 ## libc_bionic_src_files_mips64 += arch-mips64/string/memset.S
-## libc_bionic_src_files_mips64 += arch-mips64/string/mips_strlen.c
 libc_bionic_src_files_mips64 += bionic/memcpy.c
 libc_bionic_src_files_mips64 += bionic/memset.c
-libc_bionic_src_files_mips64 += string/strlen.c
 
 
 libc_crt_target_cflags_mips64 := \
diff --git a/libc/arch-x86/x86.mk b/libc/arch-x86/x86.mk
index b024acb..846bb42 100644
--- a/libc/arch-x86/x86.mk
+++ b/libc/arch-x86/x86.mk
@@ -58,15 +58,16 @@
     arch-x86/string/strncmp.S \
     arch-x86/string/strcat.S \
     arch-x86/string/memcmp.S \
-    string/memcmp16.c \
-    string/strcpy.c \
-    string/strncat.c \
-    string/strncpy.c \
-    string/strlcat.c \
-    string/strlcpy.c \
+    bionic/__memcmp16.cpp \
     upstream-freebsd/lib/libc/string/wcscpy.c \
     upstream-freebsd/lib/libc/string/wcscat.c \
-    upstream-freebsd/lib/libc/string/wmemcmp.c
+    upstream-freebsd/lib/libc/string/wmemcmp.c \
+    upstream-openbsd/lib/libc/string/strcpy.c \
+    upstream-openbsd/lib/libc/string/strlcat.c \
+    upstream-openbsd/lib/libc/string/strlcpy.c \
+    upstream-openbsd/lib/libc/string/strncat.c \
+    upstream-openbsd/lib/libc/string/strncpy.c \
+
 endif
 
 libc_bionic_src_files_x86 += \
diff --git a/libc/arch-x86_64/x86_64.mk b/libc/arch-x86_64/x86_64.mk
index 44831a6..9bce065 100644
--- a/libc/arch-x86_64/x86_64.mk
+++ b/libc/arch-x86_64/x86_64.mk
@@ -1,26 +1,16 @@
 # x86_64 specific configs
 
 libc_common_src_files_x86_64 := \
+    bionic/index.cpp \
     bionic/memchr.c \
     bionic/memcmp.c \
-    bionic/memcpy.c \
+    bionic/memcpy.cpp \
     bionic/memmove.c \
     bionic/memrchr.c \
     bionic/memset.c \
     bionic/strchr.cpp \
     bionic/strnlen.c \
-    string/bcopy.c \
-    string/index.c \
-    string/strcat.c \
-    string/strcmp.c \
-    string/strcpy.c \
-    string/strlcat.c \
-    string/strlcpy.c \
-    string/strlen.c \
-    string/strncat.c \
-    string/strncmp.c \
-    string/strncpy.c \
-    string/strrchr.c \
+    bionic/strrchr.cpp \
     upstream-freebsd/lib/libc/string/wcscat.c \
     upstream-freebsd/lib/libc/string/wcschr.c \
     upstream-freebsd/lib/libc/string/wcscmp.c \
@@ -28,6 +18,16 @@
     upstream-freebsd/lib/libc/string/wcslen.c \
     upstream-freebsd/lib/libc/string/wcsrchr.c \
     upstream-freebsd/lib/libc/string/wmemcmp.c \
+    upstream-openbsd/lib/libc/string/bcopy.c \
+    upstream-openbsd/lib/libc/string/strcat.c \
+    upstream-openbsd/lib/libc/string/strcmp.c \
+    upstream-openbsd/lib/libc/string/strcpy.c \
+    upstream-openbsd/lib/libc/string/strlcat.c \
+    upstream-openbsd/lib/libc/string/strlcpy.c \
+    upstream-openbsd/lib/libc/string/strlen.c \
+    upstream-openbsd/lib/libc/string/strncat.c \
+    upstream-openbsd/lib/libc/string/strncmp.c \
+    upstream-openbsd/lib/libc/string/strncpy.c \
 
 # Fortify implementations of libc functions.
 libc_common_src_files_x86_64 += \
@@ -51,8 +51,7 @@
     arch-x86_64/bionic/sigsetjmp.S \
     arch-x86_64/bionic/syscall.S \
     arch-x86_64/bionic/vfork.S \
-    string/memcmp16.c \
-
+    bionic/__memcmp16.cpp \
 
 libc_crt_target_cflags_x86_64 += \
     -m64 \
diff --git a/libc/string/memcmp16.c b/libc/bionic/__memcmp16.cpp
similarity index 85%
rename from libc/string/memcmp16.c
rename to libc/bionic/__memcmp16.cpp
index 1267722..eb3a08b 100644
--- a/libc/string/memcmp16.c
+++ b/libc/bionic/__memcmp16.cpp
@@ -30,16 +30,14 @@
 
 #include <stddef.h>
 
-/* Unoptimised version of __memcmp16 */
-int __memcmp16(const unsigned short *ptr1, const unsigned short *ptr2, size_t n)
-{
-  size_t i;
-
-  for (i = 0; i < n; i++) {
-    if (*ptr1 != *ptr2)
-      return *ptr1 - *ptr2;
-    ptr1++;
-    ptr2++;
+// Unoptimized version of __memcmp16.
+extern "C" int __memcmp16(const unsigned short* lhs, const unsigned short* rhs, size_t n) {
+  for (size_t i = 0; i < n; i++) {
+    if (*lhs != *rhs) {
+      return *lhs - *rhs;
+    }
+    lhs++;
+    rhs++;
   }
   return 0;
 }
diff --git a/libc/bionic/__strrchr_chk.cpp b/libc/bionic/__strrchr_chk.cpp
index 4037207..69198c0 100644
--- a/libc/bionic/__strrchr_chk.cpp
+++ b/libc/bionic/__strrchr_chk.cpp
@@ -1,4 +1,3 @@
-/*	$OpenBSD: rindex.c,v 1.6 2005/08/08 08:05:37 espie Exp $ */
 /*
  * Copyright (c) 1988 Regents of the University of California.
  * All rights reserved.
diff --git a/libc/bionic/debug_stacktrace.cpp b/libc/bionic/debug_stacktrace.cpp
index 5ddc00c..83171ad 100644
--- a/libc/bionic/debug_stacktrace.cpp
+++ b/libc/bionic/debug_stacktrace.cpp
@@ -37,6 +37,12 @@
 #include "debug_mapinfo.h"
 #include "private/libc_logging.h"
 
+#if defined(__LP64__)
+#define PAD_PTR "016" PRIxPTR
+#else
+#define PAD_PTR "08" PRIxPTR
+#endif
+
 /* depends how the system includes define this */
 #ifdef HAVE_UNWIND_CONTEXT_STRUCT
 typedef struct _Unwind_Context __unwind_context;
@@ -164,19 +170,14 @@
       const char* best_name = (demangled_symbol != NULL) ? demangled_symbol : symbol;
 
       __libc_format_log(ANDROID_LOG_ERROR, "libc",
-                        "          #%02zd  pc %0*" PRIxPTR "  %s (%s+%" PRIuPTR ")",
-                        i,
-                        static_cast<int>(2 * sizeof(void*)), rel_pc,
-                        soname,
-                        best_name, frames[i] - offset);
+                        "          #%02zd  pc %" PAD_PTR "  %s (%s+%" PRIuPTR ")",
+                        i, rel_pc, soname, best_name, frames[i] - offset);
 
       free(demangled_symbol);
     } else {
       __libc_format_log(ANDROID_LOG_ERROR, "libc",
-                        "          #%02zd  pc %0*" PRIxPTR "  %s",
-                        i,
-                        static_cast<int>(2 * sizeof(void*)), rel_pc,
-                        soname);
+                        "          #%02zd  pc %" PAD_PTR "  %s",
+                        i, rel_pc, soname);
     }
   }
 }
diff --git a/libc/bionic/flockfile.c b/libc/bionic/flockfile.c
deleted file mode 100644
index 368fb15..0000000
--- a/libc/bionic/flockfile.c
+++ /dev/null
@@ -1,75 +0,0 @@
-/*
- * Copyright (C) 2008 The Android Open Source Project
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *  * Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- *  * Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in
- *    the documentation and/or other materials provided with the
- *    distribution.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
- * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
- * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
- * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
- * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
- * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
- * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
- * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
- * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- */
-
-/* implement flockfile(), ftrylockfile() and funlockfile()
- *
- * we can't use the OpenBSD implementation which uses kernel-specific
- * APIs not available on Linux.
- *
- * Instead, we use a pthread_mutex_t within the FILE* internal state.
- * See fileext.h for details.
- *
- * the behaviour, if fclose() is called while the corresponding
- * file is locked is totally undefined.
- */
-#include <stdio.h>
-#include <string.h>
-#include <errno.h>
-#include "fileext.h"
-
-
-void
-flockfile(FILE * fp)
-{
-    if (fp != NULL) {
-        _FLOCK_LOCK(fp);
-    }
-}
-
-
-int
-ftrylockfile(FILE *fp)
-{
-    /* The specification for ftrylockfile() says it returns 0 on success,
-     * or non-zero on error. So return an errno code directly on error.
-     */
-    int  ret = EINVAL;
-
-    if (fp != NULL) {
-        ret = _FLOCK_TRYLOCK(fp);
-    }
-    return ret;
-}
-
-void
-funlockfile(FILE * fp)
-{
-    if (fp != NULL) {
-        _FLOCK_UNLOCK(fp);
-    }
-}
diff --git a/libc/bionic/memcpy.c b/libc/bionic/flockfile.cpp
similarity index 66%
copy from libc/bionic/memcpy.c
copy to libc/bionic/flockfile.cpp
index dea78b2..c60497d 100644
--- a/libc/bionic/memcpy.c
+++ b/libc/bionic/flockfile.cpp
@@ -25,5 +25,34 @@
  * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  * SUCH DAMAGE.
  */
-#define MEMCOPY
-#include "bcopy.c"
+
+#include <errno.h>
+#include <stdio.h>
+
+#include "fileext.h"
+
+// We can't use the OpenBSD implementation which uses kernel-specific
+// APIs not available on Linux. Instead we use a pthread_mutex_t within
+// struct __sfileext (see fileext.h).
+
+void flockfile(FILE* fp) {
+  if (fp != NULL) {
+    pthread_mutex_lock(&_FLOCK(fp));
+  }
+}
+
+int ftrylockfile(FILE* fp) {
+  // The specification for ftrylockfile() says it returns 0 on success,
+  // or non-zero on error. So return an errno code directly on error.
+  if (fp == NULL) {
+    return EINVAL;
+  }
+
+  return pthread_mutex_trylock(&_FLOCK(fp));
+}
+
+void funlockfile(FILE* fp) {
+  if (fp != NULL) {
+    pthread_mutex_unlock(&_FLOCK(fp));
+  }
+}
diff --git a/libc/string/index.c b/libc/bionic/index.cpp
similarity index 87%
rename from libc/string/index.c
rename to libc/bionic/index.cpp
index 81bfba4..cc22d81 100644
--- a/libc/string/index.c
+++ b/libc/bionic/index.cpp
@@ -1,4 +1,3 @@
-/*	$OpenBSD: index.c,v 1.5 2005/08/08 08:05:37 espie Exp $ */
 /*-
  * Copyright (c) 1990 The Regents of the University of California.
  * All rights reserved.
@@ -28,16 +27,9 @@
  * SUCH DAMAGE.
  */
 
+#undef _FORTIFY_SOURCE
 #include <string.h>
 
-char *
-index(const char *p, int ch)
-{
-	for (;; ++p) {
-		if (*p == (char) ch)
-			return((char *)p);
-		if (!*p)
-			return((char *)NULL);
-	}
-	/* NOTREACHED */
+char* index(const char* p, int ch) {
+  return __strchr_chk(p, ch, __BIONIC_FORTIFY_UNKNOWN_SIZE);
 }
diff --git a/libc/bionic/memcpy.c b/libc/bionic/memcpy.cpp
similarity index 81%
rename from libc/bionic/memcpy.c
rename to libc/bionic/memcpy.cpp
index dea78b2..d527e85 100644
--- a/libc/bionic/memcpy.c
+++ b/libc/bionic/memcpy.cpp
@@ -25,5 +25,14 @@
  * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  * SUCH DAMAGE.
  */
-#define MEMCOPY
-#include "bcopy.c"
+
+#undef _FORTIFY_SOURCE
+#include <string.h>
+#include <strings.h>
+
+// Our unoptimized memcpy just calls the best bcopy available.
+// (It's this way round rather than the opposite because we're based on BSD source.)
+void* memcpy(void* dst, const void* src, size_t n) {
+  bcopy(src, dst, n);
+  return dst;
+}
diff --git a/libc/bionic/strchr.cpp b/libc/bionic/strchr.cpp
index 029fbd9..5bd3f19 100644
--- a/libc/bionic/strchr.cpp
+++ b/libc/bionic/strchr.cpp
@@ -30,6 +30,6 @@
 #undef _FORTIFY_SOURCE
 #include <string.h>
 
-extern "C" char* strchr(const char* p, int ch) {
+char* strchr(const char* p, int ch) {
   return __strchr_chk(p, ch, __BIONIC_FORTIFY_UNKNOWN_SIZE);
 }
diff --git a/libc/string/strrchr.c b/libc/bionic/strrchr.cpp
similarity index 89%
rename from libc/string/strrchr.c
rename to libc/bionic/strrchr.cpp
index fe2306a..3fdb47c 100644
--- a/libc/string/strrchr.c
+++ b/libc/bionic/strrchr.cpp
@@ -1,4 +1,3 @@
-/*	$OpenBSD: rindex.c,v 1.6 2005/08/08 08:05:37 espie Exp $ */
 /*
  * Copyright (c) 1988 Regents of the University of California.
  * All rights reserved.
@@ -28,10 +27,9 @@
  * SUCH DAMAGE.
  */
 
+#undef _FORTIFY_SOURCE
 #include <string.h>
 
-char *
-strrchr(const char *p, int ch)
-{
-	return __strrchr_chk(p, ch, __BIONIC_FORTIFY_UNKNOWN_SIZE);
+char* strrchr(const char* p, int ch) {
+  return __strrchr_chk(p, ch, __BIONIC_FORTIFY_UNKNOWN_SIZE);
 }
diff --git a/libc/include/string.h b/libc/include/string.h
index 37d22c4..8963e3d 100644
--- a/libc/include/string.h
+++ b/libc/include/string.h
@@ -49,6 +49,7 @@
 extern char* __strchr_chk(const char *, int, size_t);
 
 extern char*  strrchr(const char *, int) __purefunc;
+extern char* __strrchr_chk(const char *, int, size_t);
 
 extern size_t strlen(const char *) __purefunc;
 extern size_t __strlen_chk(const char *, size_t);
@@ -263,8 +264,6 @@
     return __strchr_chk(s, c, bos);
 }
 
-extern char* __strrchr_chk(const char *, int, size_t);
-
 __BIONIC_FORTIFY_INLINE
 char* strrchr(const char *s, int c) {
     size_t bos = __bos(s);
diff --git a/libc/include/wchar.h b/libc/include/wchar.h
index 76ac02c..32cf127 100644
--- a/libc/include/wchar.h
+++ b/libc/include/wchar.h
@@ -147,6 +147,9 @@
 extern int               wprintf(const wchar_t *, ...);
 extern int               wscanf(const wchar_t *, ...);
 
+extern size_t wcslcat(wchar_t*, const wchar_t*, size_t);
+extern size_t wcslcpy(wchar_t*, const wchar_t*, size_t);
+
 /* No really supported.  These are just for making libstdc++-v3 happy.  */
 typedef void *wctrans_t;
 extern wint_t		 towctrans(wint_t, wctrans_t);
diff --git a/libc/stdio/fileext.h b/libc/stdio/fileext.h
index b36a448..8641924 100644
--- a/libc/stdio/fileext.h
+++ b/libc/stdio/fileext.h
@@ -52,18 +52,9 @@
 	_UB(fp)._base = NULL; \
 	_UB(fp)._size = 0; \
 	WCIO_INIT(fp); \
-	_FLOCK_INIT(fp); \
+        _FLOCK(fp).value = __PTHREAD_RECURSIVE_MUTEX_INIT_VALUE; \
 } while (0)
 
-/* Helper macros to avoid a function call when you know that fp is not NULL.
- * Notice that we keep _FLOCK_INIT() fast by slightly breaking our pthread
- * encapsulation.
- */
-#define _FLOCK_INIT(fp)    _FLOCK(fp).value = __PTHREAD_RECURSIVE_MUTEX_INIT_VALUE
-#define _FLOCK_LOCK(fp)    pthread_mutex_lock(&_FLOCK(fp))
-#define _FLOCK_TRYLOCK(fp) pthread_mutex_trylock(&_FLOCK(fp))
-#define _FLOCK_UNLOCK(fp)  pthread_mutex_unlock(&_FLOCK(fp))
-
 #define _FILEEXT_SETUP(f, fext) \
 do { \
 	(f)->_ext._base = (unsigned char *)(fext); \
diff --git a/libc/upstream-freebsd/lib/libc/string/wcslcpy.c b/libc/upstream-freebsd/lib/libc/string/wcslcpy.c
deleted file mode 100644
index b104a06..0000000
--- a/libc/upstream-freebsd/lib/libc/string/wcslcpy.c
+++ /dev/null
@@ -1,70 +0,0 @@
-/*
- * Copyright (c) 1998 Todd C. Miller <Todd.Miller@courtesan.com>
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- * 3. The name of the author may not be used to endorse or promote products
- *    derived from this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
- * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
- * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL
- * THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
- * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
- * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
- * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
- * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- *	from OpenBSD: strlcpy.c,v 1.4 1999/05/01 18:56:41 millert Exp
- */
-
-#include <sys/cdefs.h>
-#if 0
-#if defined(LIBC_SCCS) && !defined(lint)
-__RCSID("$NetBSD: wcslcpy.c,v 1.1 2000/12/23 23:14:36 itojun Exp $");
-#endif /* LIBC_SCCS and not lint */
-#endif
-__FBSDID("$FreeBSD$");
-
-#include <sys/types.h>
-#include <wchar.h>
-
-/*
- * Copy src to string dst of size siz.  At most siz-1 characters
- * will be copied.  Always NUL terminates (unless siz == 0).
- * Returns wcslen(src); if retval >= siz, truncation occurred.
- */
-size_t
-wcslcpy(wchar_t *dst, const wchar_t *src, size_t siz)
-{
-	wchar_t *d = dst;
-	const wchar_t *s = src;
-	size_t n = siz;
-
-	/* Copy as many bytes as will fit */
-	if (n != 0 && --n != 0) {
-		do {
-			if ((*d++ = *s++) == 0)
-				break;
-		} while (--n != 0);
-	}
-
-	/* Not enough room in dst, add NUL and traverse rest of src */
-	if (n == 0) {
-		if (siz != 0)
-			*d = '\0';		/* NUL-terminate dst */
-		while (*s++)
-			;
-	}
-
-	return(s - src - 1);	/* count does not include NUL */
-}
diff --git a/libc/string/strrchr.c b/libc/upstream-openbsd/lib/libc/locale/wcsxfrm.c
similarity index 78%
copy from libc/string/strrchr.c
copy to libc/upstream-openbsd/lib/libc/locale/wcsxfrm.c
index fe2306a..98db4a9 100644
--- a/libc/string/strrchr.c
+++ b/libc/upstream-openbsd/lib/libc/locale/wcsxfrm.c
@@ -1,6 +1,9 @@
-/*	$OpenBSD: rindex.c,v 1.6 2005/08/08 08:05:37 espie Exp $ */
+/*	$OpenBSD: wcsxfrm.c,v 1.2 2012/12/05 23:20:00 deraadt Exp $ */
+/*	$OpenBSD: wcsxfrm.c,v 1.2 2012/12/05 23:20:00 deraadt Exp $	*/
+/*	$NetBSD: multibyte_sb.c,v 1.4 2003/08/07 16:43:04 agc Exp $	*/
+
 /*
- * Copyright (c) 1988 Regents of the University of California.
+ * Copyright (c) 1991 The Regents of the University of California.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -28,10 +31,12 @@
  * SUCH DAMAGE.
  */
 
-#include <string.h>
+#include <wchar.h>
 
-char *
-strrchr(const char *p, int ch)
+size_t 
+wcsxfrm(wchar_t *dest, const wchar_t *src, size_t n)
 {
-	return __strrchr_chk(p, ch, __BIONIC_FORTIFY_UNKNOWN_SIZE);
+	if (n == 0)
+		return wcslen(src);
+	return wcslcpy(dest, src, n);
 }
diff --git a/libc/unistd/system.c b/libc/upstream-openbsd/lib/libc/stdlib/system.c
similarity index 91%
rename from libc/unistd/system.c
rename to libc/upstream-openbsd/lib/libc/stdlib/system.c
index 72cc37e..14ddcae 100644
--- a/libc/unistd/system.c
+++ b/libc/upstream-openbsd/lib/libc/stdlib/system.c
@@ -29,18 +29,18 @@
  */
 
 #include <sys/types.h>
+#include <sys/wait.h>
 #include <signal.h>
 #include <stdlib.h>
 #include <unistd.h>
 #include <paths.h>
-#include <sys/wait.h>
 
 extern char **environ;
 
 int
 system(const char *command)
 {
-  pid_t pid;
+	pid_t pid;
 	sig_t intsave, quitsave;
 	sigset_t mask, omask;
 	int pstat;
@@ -61,14 +61,14 @@
 	case 0:				/* child */
 		sigprocmask(SIG_SETMASK, &omask, NULL);
 		execve(_PATH_BSHELL, argp, environ);
-    _exit(127);
-  }
+		_exit(127);
+	}
 
-	intsave = (sig_t)  bsd_signal(SIGINT, SIG_IGN);
-	quitsave = (sig_t) bsd_signal(SIGQUIT, SIG_IGN);
+	intsave = signal(SIGINT, SIG_IGN);
+	quitsave = signal(SIGQUIT, SIG_IGN);
 	pid = waitpid(pid, (int *)&pstat, 0);
 	sigprocmask(SIG_SETMASK, &omask, NULL);
-	(void)bsd_signal(SIGINT, intsave);
-	(void)bsd_signal(SIGQUIT, quitsave);
+	(void)signal(SIGINT, intsave);
+	(void)signal(SIGQUIT, quitsave);
 	return (pid == -1 ? -1 : pstat);
 }
diff --git a/libc/string/bcopy.c b/libc/upstream-openbsd/lib/libc/string/bcopy.c
similarity index 100%
rename from libc/string/bcopy.c
rename to libc/upstream-openbsd/lib/libc/string/bcopy.c
diff --git a/libc/string/strcat.c b/libc/upstream-openbsd/lib/libc/string/strcat.c
similarity index 100%
rename from libc/string/strcat.c
rename to libc/upstream-openbsd/lib/libc/string/strcat.c
diff --git a/libc/string/strcmp.c b/libc/upstream-openbsd/lib/libc/string/strcmp.c
similarity index 100%
rename from libc/string/strcmp.c
rename to libc/upstream-openbsd/lib/libc/string/strcmp.c
diff --git a/libc/string/strcpy.c b/libc/upstream-openbsd/lib/libc/string/strcpy.c
similarity index 88%
rename from libc/string/strcpy.c
rename to libc/upstream-openbsd/lib/libc/string/strcpy.c
index eb21d67..71d90d4 100644
--- a/libc/string/strcpy.c
+++ b/libc/upstream-openbsd/lib/libc/string/strcpy.c
@@ -29,7 +29,16 @@
  * SUCH DAMAGE.
  */
 
+#if !defined(_KERNEL) && !defined(_STANDALONE)
 #include <string.h>
+#else
+#include <lib/libkern/libkern.h>
+#endif
+
+#if defined(APIWARN)
+__warn_references(strcpy,
+    "warning: strcpy() is almost always misused, please use strlcpy()");
+#endif
 
 char *
 strcpy(char *to, const char *from)
diff --git a/libc/string/strlcat.c b/libc/upstream-openbsd/lib/libc/string/strlcat.c
similarity index 100%
rename from libc/string/strlcat.c
rename to libc/upstream-openbsd/lib/libc/string/strlcat.c
diff --git a/libc/string/strlcpy.c b/libc/upstream-openbsd/lib/libc/string/strlcpy.c
similarity index 100%
rename from libc/string/strlcpy.c
rename to libc/upstream-openbsd/lib/libc/string/strlcpy.c
diff --git a/libc/string/strlen.c b/libc/upstream-openbsd/lib/libc/string/strlen.c
similarity index 100%
rename from libc/string/strlen.c
rename to libc/upstream-openbsd/lib/libc/string/strlen.c
diff --git a/libc/string/strncat.c b/libc/upstream-openbsd/lib/libc/string/strncat.c
similarity index 100%
rename from libc/string/strncat.c
rename to libc/upstream-openbsd/lib/libc/string/strncat.c
diff --git a/libc/string/strncmp.c b/libc/upstream-openbsd/lib/libc/string/strncmp.c
similarity index 99%
rename from libc/string/strncmp.c
rename to libc/upstream-openbsd/lib/libc/string/strncmp.c
index 1768808..0aea80d 100644
--- a/libc/string/strncmp.c
+++ b/libc/upstream-openbsd/lib/libc/string/strncmp.c
@@ -38,6 +38,7 @@
 int
 strncmp(const char *s1, const char *s2, size_t n)
 {
+
 	if (n == 0)
 		return (0);
 	do {
diff --git a/libc/string/strncpy.c b/libc/upstream-openbsd/lib/libc/string/strncpy.c
similarity index 100%
rename from libc/string/strncpy.c
rename to libc/upstream-openbsd/lib/libc/string/strncpy.c
diff --git a/libc/upstream-openbsd/lib/libc/string/wcslcpy.c b/libc/upstream-openbsd/lib/libc/string/wcslcpy.c
new file mode 100644
index 0000000..f49936a
--- /dev/null
+++ b/libc/upstream-openbsd/lib/libc/string/wcslcpy.c
@@ -0,0 +1,52 @@
+/*	$OpenBSD: wcslcpy.c,v 1.5 2011/07/24 15:21:28 millert Exp $	*/
+/*	$NetBSD: wcslcpy.c,v 1.2 2001/01/03 14:33:02 lukem Exp $	*/
+
+/*
+ * Copyright (c) 1998 Todd C. Miller <Todd.Miller@courtesan.com>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#include <sys/types.h>
+#include <wchar.h>
+
+/*
+ * Copy src to string dst of size siz.  At most siz-1 characters
+ * will be copied.  Always NUL terminates (unless siz == 0).
+ * Returns wcslen(src); if retval >= siz, truncation occurred.
+ */
+size_t
+wcslcpy(wchar_t *dst, const wchar_t *src, size_t siz)
+{
+	wchar_t *d = dst;
+	const wchar_t *s = src;
+	size_t n = siz;
+
+	/* Copy as many bytes as will fit */
+	if (n != 0) {
+		while (--n != 0) {
+			if ((*d++ = *s++) == '\0')
+				break;
+		}
+	}
+
+	/* Not enough room in dst, add NUL and traverse rest of src */
+	if (n == 0) {
+		if (siz != 0)
+			*d = '\0';		/* NUL-terminate dst */
+		while (*s++)
+			;
+	}
+
+	return(s - src - 1);	/* count does not include NUL */
+}
diff --git a/libc/string/strrchr.c b/libc/upstream-openbsd/lib/libc/string/wcswidth.c
similarity index 65%
copy from libc/string/strrchr.c
copy to libc/upstream-openbsd/lib/libc/string/wcswidth.c
index fe2306a..8ea1bdf 100644
--- a/libc/string/strrchr.c
+++ b/libc/upstream-openbsd/lib/libc/string/wcswidth.c
@@ -1,6 +1,8 @@
-/*	$OpenBSD: rindex.c,v 1.6 2005/08/08 08:05:37 espie Exp $ */
-/*
- * Copyright (c) 1988 Regents of the University of California.
+/*	$OpenBSD: wcswidth.c,v 1.4 2011/04/04 18:16:24 stsp Exp $	*/
+/*	$NetBSD: wcswidth.c,v 1.2 2001/01/03 14:29:37 lukem Exp $	*/
+
+/*-
+ * Copyright (c)1999 Citrus Project,
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -11,14 +13,11 @@
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
  *    documentation and/or other materials provided with the distribution.
- * 3. Neither the name of the University nor the names of its contributors
- *    may be used to endorse or promote products derived from this software
- *    without specific prior written permission.
  *
- * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
@@ -26,12 +25,26 @@
  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  * SUCH DAMAGE.
+ *
+ *	citrus Id: wcswidth.c,v 1.1 1999/12/29 21:47:45 tshiozak Exp
  */
 
-#include <string.h>
+#include <wchar.h>
 
-char *
-strrchr(const char *p, int ch)
+int
+wcswidth(const wchar_t *s, size_t n)
 {
-	return __strrchr_chk(p, ch, __BIONIC_FORTIFY_UNKNOWN_SIZE);
+	int w, q;
+
+	w = 0;
+	while (n && *s) {
+		q = wcwidth(*s);
+		if (q == -1)
+			return (-1);
+		w += q;
+		s++;
+		n--;
+	}
+
+	return w;
 }
diff --git a/libc/wchar/wcswidth.c b/libc/wchar/wcswidth.c
deleted file mode 100644
index b142074..0000000
--- a/libc/wchar/wcswidth.c
+++ /dev/null
@@ -1,57 +0,0 @@
-/*
- * Copyright (c) 1989, 1993
- *	The Regents of the University of California.  All rights reserved.
- * (c) UNIX System Laboratories, Inc.
- * All or some portions of this file are derived from material licensed
- * to the University of California by American Telephone and Telegraph
- * Co. or Unix System Laboratories, Inc. and are reproduced herein with
- * the permission of UNIX System Laboratories, Inc.
- *
- * This code is derived from software contributed to Berkeley by
- * Paul Borman at Krystal Technologies.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- * 4. Neither the name of the University nor the names of its contributors
- *    may be used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- */
-
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
-#include <wchar.h>
-
-int
-wcswidth(const wchar_t *pwcs, size_t n)
-{
-	wchar_t wc;
-	int len, l;
-
-	len = 0;
-	while (n-- > 0 && (wc = *pwcs++) != L'\0') {
-		if ((l = wcwidth(wc)) < 0)
-			return (-1);
-		len += l;
-	}
-	return (len);
-}
-
diff --git a/libc/wchar/wcsxfrm.c b/libc/wchar/wcsxfrm.c
deleted file mode 100644
index 042ea56..0000000
--- a/libc/wchar/wcsxfrm.c
+++ /dev/null
@@ -1,57 +0,0 @@
-/*-
- * Copyright (c) 1995 Alex Tatmanjants <alex@elvisti.kiev.ua>
- *		at Electronni Visti IA, Kiev, Ukraine.
- *			All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- *
- * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- */
-
-#include <wchar.h>
-
-/*
- * Placeholder wcsxfrm() implementation. See wcscoll.c for a description of
- * the logic used.
- */
-size_t
-wcsxfrm(wchar_t * __restrict dest, const wchar_t * __restrict src, size_t len)
-{
-    int prim, sec, l;
-    size_t slen;
-    char *mbsrc, *s, *ss;
-
-    if (*src == L'\0') {
-        if (len != 0)
-            *dest = L'\0';
-        return (0);
-    }
-
-    slen = wcslen(src);
-    if (len > 0) {
-        if (slen < len)
-            wcscpy(dest, src);
-        else {
-            wcsncpy(dest, src, len - 1);
-            dest[len - 1] = L'\0';
-        }
-    }
-    return (slen);
-}