diff --git a/libc/SYSCALLS.TXT b/libc/SYSCALLS.TXT
index 220c713..93ed85c 100644
--- a/libc/SYSCALLS.TXT
+++ b/libc/SYSCALLS.TXT
@@ -61,7 +61,6 @@
 int     tkill(pid_t tid, int sig)  all
 int     tgkill(pid_t tgid, pid_t tid, int sig)  all
 int     __ptrace:ptrace(int request, int pid, void* addr, void* data)  all
-int     __set_thread_area:set_thread_area(void*  user_desc)  mips,mips64,x86
 
 # <sys/resource.h>
 int getrusage(int, struct rusage*)  all
@@ -331,3 +330,7 @@
 
 # MIPS-specific
 int     _flush_cache:cacheflush(char* addr, const int nbytes, const int op) mips,mips64
+int     __set_tls:set_thread_area(void*) mips,mips64
+
+# x86-specific
+int     __set_thread_area:set_thread_area(void*) x86
diff --git a/libc/arch-mips/bionic/__set_tls.c b/libc/arch-mips/bionic/__set_tls.c
deleted file mode 100644
index 38e3a50..0000000
--- a/libc/arch-mips/bionic/__set_tls.c
+++ /dev/null
@@ -1,35 +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.
- */
-#include <pthread.h>
-
-extern int __set_thread_area(void *u_info);
-
-int __set_tls(void *ptr)
-{
-    return __set_thread_area(ptr);
-}
diff --git a/libc/arch-mips/mips.mk b/libc/arch-mips/mips.mk
index 53fa223..bffd897 100644
--- a/libc/arch-mips/mips.mk
+++ b/libc/arch-mips/mips.mk
@@ -61,7 +61,6 @@
     arch-mips/bionic/memcmp16.S \
     arch-mips/bionic/_setjmp.S \
     arch-mips/bionic/setjmp.S \
-    arch-mips/bionic/__set_tls.c \
     arch-mips/bionic/sigsetjmp.S \
     arch-mips/bionic/syscall.S \
     arch-mips/bionic/vfork.S \
diff --git a/libc/arch-mips/syscalls/__set_thread_area.S b/libc/arch-mips/syscalls/__set_tls.S
similarity index 84%
rename from libc/arch-mips/syscalls/__set_thread_area.S
rename to libc/arch-mips/syscalls/__set_tls.S
index f83249e..e5b0ca2 100644
--- a/libc/arch-mips/syscalls/__set_thread_area.S
+++ b/libc/arch-mips/syscalls/__set_tls.S
@@ -2,7 +2,7 @@
 
 #include <private/bionic_asm.h>
 
-ENTRY(__set_thread_area)
+ENTRY(__set_tls)
     .set noreorder
     .cpload t9
     li v0, __NR_set_thread_area
@@ -16,4 +16,4 @@
     j t9
     nop
     .set reorder
-END(__set_thread_area)
+END(__set_tls)
diff --git a/libc/arch-mips64/bionic/__set_tls.c b/libc/arch-mips64/bionic/__set_tls.c
deleted file mode 100644
index 38e3a50..0000000
--- a/libc/arch-mips64/bionic/__set_tls.c
+++ /dev/null
@@ -1,35 +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.
- */
-#include <pthread.h>
-
-extern int __set_thread_area(void *u_info);
-
-int __set_tls(void *ptr)
-{
-    return __set_thread_area(ptr);
-}
diff --git a/libc/arch-mips64/mips64.mk b/libc/arch-mips64/mips64.mk
index 75620d8..cc177cf 100644
--- a/libc/arch-mips64/mips64.mk
+++ b/libc/arch-mips64/mips64.mk
@@ -47,7 +47,6 @@
     arch-mips64/bionic/memcmp16.S \
     arch-mips64/bionic/_setjmp.S \
     arch-mips64/bionic/setjmp.S \
-    arch-mips64/bionic/__set_tls.c \
     arch-mips64/bionic/sigsetjmp.S \
     arch-mips64/bionic/syscall.S \
     arch-mips64/bionic/vfork.S \
diff --git a/libc/arch-mips64/syscalls/__set_thread_area.S b/libc/arch-mips64/syscalls/__set_tls.S
similarity index 82%
rename from libc/arch-mips64/syscalls/__set_thread_area.S
rename to libc/arch-mips64/syscalls/__set_tls.S
index c28ee4a..f1c31b4 100644
--- a/libc/arch-mips64/syscalls/__set_thread_area.S
+++ b/libc/arch-mips64/syscalls/__set_tls.S
@@ -2,7 +2,7 @@
 
 #include <private/bionic_asm.h>
 
-ENTRY(__set_thread_area)
+ENTRY(__set_tls)
     .set push
     .set noreorder
     li v0, __NR_set_thread_area
@@ -22,5 +22,5 @@
     j t9
     move ra, t0
     .set pop
-END(__set_thread_area)
-.hidden __set_thread_area
+END(__set_tls)
+.hidden __set_tls