diff --git a/libc/kernel/arch-mips/asm/regdef.h b/libc/kernel/arch-mips/asm/regdef.h
new file mode 100644
index 0000000..12d9c42
--- /dev/null
+++ b/libc/kernel/arch-mips/asm/regdef.h
@@ -0,0 +1,118 @@
+/****************************************************************************
+ ****************************************************************************
+ ***
+ ***   This header was automatically generated from a Linux kernel header
+ ***   of the same name, to make information necessary for userspace to
+ ***   call into the kernel available to libc.  It contains only constants,
+ ***   structures, and macros generated from the original header, and thus,
+ ***   contains no copyrightable information.
+ ***
+ ***   To edit the content of this header, modify the corresponding
+ ***   source file (e.g. under external/kernel-headers/original/) then
+ ***   run bionic/libc/kernel/tools/update_all.py
+ ***
+ ***   Any manual change here will be lost the next time this script will
+ ***   be run. You've been warned!
+ ***
+ ****************************************************************************
+ ****************************************************************************/
+#ifndef _ASM_REGDEF_H
+#define _ASM_REGDEF_H
+#include <asm/sgidefs.h>
+#if _MIPS_SIM == _MIPS_SIM_ABI32
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+#define zero $0  
+#define AT $1  
+#define v0 $2  
+#define v1 $3
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+#define a0 $4  
+#define a1 $5
+#define a2 $6
+#define a3 $7
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+#define t0 $8  
+#define t1 $9
+#define t2 $10
+#define t3 $11
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+#define t4 $12
+#define t5 $13
+#define t6 $14
+#define t7 $15
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+#define s0 $16  
+#define s1 $17
+#define s2 $18
+#define s3 $19
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+#define s4 $20
+#define s5 $21
+#define s6 $22
+#define s7 $23
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+#define t8 $24  
+#define t9 $25
+#define jp $25  
+#define k0 $26  
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+#define k1 $27
+#define gp $28  
+#define sp $29  
+#define fp $30  
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+#define s8 $30  
+#define ra $31  
+#endif
+#if _MIPS_SIM == _MIPS_SIM_ABI64 || _MIPS_SIM == _MIPS_SIM_NABI32
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+#define zero $0  
+#define AT $at  
+#define v0 $2  
+#define v1 $3
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+#define a0 $4  
+#define a1 $5
+#define a2 $6
+#define a3 $7
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+#define a4 $8  
+#define ta0 $8
+#define a5 $9
+#define ta1 $9
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+#define a6 $10
+#define ta2 $10
+#define a7 $11
+#define ta3 $11
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+#define t0 $12  
+#define t1 $13
+#define t2 $14
+#define t3 $15
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+#define s0 $16  
+#define s1 $17
+#define s2 $18
+#define s3 $19
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+#define s4 $20
+#define s5 $21
+#define s6 $22
+#define s7 $23
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+#define t8 $24  
+#define t9 $25  
+#define jp $25  
+#define k0 $26  
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+#define k1 $27
+#define gp $28  
+#define sp $29  
+#define fp $30  
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+#define s8 $30  
+#define ra $31  
+#endif
+#endif
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */