diff --git a/libc/private/bionic_asm.h b/libc/private/bionic_asm.h
index 30842f4..6409563 100644
--- a/libc/private/bionic_asm.h
+++ b/libc/private/bionic_asm.h
@@ -42,8 +42,6 @@
 #include <private/bionic_asm_arm.h>
 #elif defined(__i386__)
 #include <private/bionic_asm_x86.h>
-#elif defined(__mips__)
-#include <private/bionic_asm_mips.h>
 #elif defined(__x86_64__)
 #include <private/bionic_asm_x86_64.h>
 #endif
diff --git a/libc/private/bionic_asm_mips.h b/libc/private/bionic_asm_mips.h
deleted file mode 100644
index 99dcfb1..0000000
--- a/libc/private/bionic_asm_mips.h
+++ /dev/null
@@ -1,187 +0,0 @@
-/*	$OpenBSD: asm.h,v 1.7 2004/10/20 12:49:15 pefo Exp $ */
-
-/*
- * Copyright (c) 2001-2002 Opsycon AB  (www.opsycon.se / www.opsycon.com)
- *
- * 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.
- *
- */
-
-#pragma once
-
-#define __bionic_asm_align 16
-
-#undef __bionic_asm_custom_entry
-#undef __bionic_asm_custom_end
-#define __bionic_asm_custom_entry(f) .ent f
-#define __bionic_asm_custom_end(f) .end f
-
-#define	_MIPS_ISA_MIPS1	1	/* R2000/R3000 */
-#define	_MIPS_ISA_MIPS2	2	/* R4000/R6000 */
-#define	_MIPS_ISA_MIPS3	3	/* R4000 */
-#define	_MIPS_ISA_MIPS4	4	/* TFP (R1x000) */
-#define	_MIPS_ISA_MIPS5 5
-#define	_MIPS_ISA_MIPS32 6
-#define	_MIPS_ISA_MIPS64 7
-
-#if !defined(ABICALLS) && !defined(_NO_ABICALLS)
-#define	ABICALLS	.abicalls
-#endif
-
-#if defined(ABICALLS) && !defined(_KERNEL)
-	ABICALLS
-#endif
-
-/*
- * Define how to access unaligned data word
- */
-#define LWLO    lwl
-#define LWHI    lwr
-#define	SWLO	swl
-#define	SWHI	swr
-#define LDLO    ldl
-#define LDHI    ldr
-#define	SDLO	sdl
-#define	SDHI	sdr
-
-/*
- *  Define programming environment for ABI.
- */
-#if defined(ABICALLS) && !defined(_KERNEL) && !defined(_STANDALONE)
-
-#if (_MIPS_SIM == _ABIO32) || (_MIPS_SIM == _ABI32)
-#define NARGSAVE	4
-
-#define	SETUP_GP		\
-	.set	noreorder;	\
-	.cpload	$t9;		\
-	.set	reorder;
-
-#define	SAVE_GP(x)		\
-	.cprestore x
-
-#define	SETUP_GP64(gpoff, name)
-#define	RESTORE_GP64
-#endif
-
-#if (_MIPS_SIM == _ABI64) || (_MIPS_SIM == _ABIN32)
-#define NARGSAVE	0
-
-#define	SETUP_GP
-#define	SAVE_GP(x)
-#define	SETUP_GP64(gpoff, name)	\
-	.cpsetup $t9, gpoff, name
-#define	RESTORE_GP64		\
-	.cpreturn
-#endif
-
-#define	MKFSIZ(narg,locals) (((narg+locals)*REGSZ+31)&(~31))
-
-#else /* defined(ABICALLS) && !defined(_KERNEL) */
-
-#define	NARGSAVE	4
-#define	SETUP_GP
-#define	SAVE_GP(x)
-
-#define	ALIGNSZ		16	/* Stack layout alignment */
-#define	FRAMESZ(sz)	(((sz) + (ALIGNSZ-1)) & ~(ALIGNSZ-1))
-
-#endif
-
-/*
- *  Basic register operations based on selected ISA
- */
-#if (_MIPS_ISA == _MIPS_ISA_MIPS1 || _MIPS_ISA == _MIPS_ISA_MIPS2 || _MIPS_ISA == _MIPS_ISA_MIPS32)
-#define REGSZ		4	/* 32 bit mode register size */
-#define LOGREGSZ	2	/* log rsize */
-#define	REG_S	sw
-#define	REG_L	lw
-#define	CF_SZ		24	/* Call frame size */
-#define	CF_ARGSZ	16	/* Call frame arg size */
-#define	CF_RA_OFFS	20	/* Call ra save offset */
-#endif
-
-#if (_MIPS_ISA == _MIPS_ISA_MIPS3 || _MIPS_ISA == _MIPS_ISA_MIPS4 || _MIPS_ISA == _MIPS_ISA_MIPS64)
-#define REGSZ		8	/* 64 bit mode register size */
-#define LOGREGSZ	3	/* log rsize */
-#define	REG_S	sd
-#define	REG_L	ld
-#define	CF_SZ		48	/* Call frame size (multiple of ALIGNSZ) */
-#define	CF_ARGSZ	32	/* Call frame arg size */
-#define	CF_RA_OFFS	40	/* Call ra save offset */
-#endif
-
-#define REGSZ_FP	 8	/* 64 bit FP register size */
-
-#ifndef __LP64__
-#define	PTR_L		lw
-#define	PTR_S		sw
-#define	PTR_SUB		sub
-#define	PTR_ADD		add
-#define	PTR_SUBU	subu
-#define	PTR_ADDU	addu
-#define LI		li
-#define	LA		la
-#define	PTR_SLL		sll
-#define	PTR_SRL		srl
-#define	PTR_VAL		.word
-#else
-#define	PTR_L		ld
-#define	PTR_S		sd
-#define	PTR_ADD		dadd
-#define	PTR_SUB		dsub
-#define	PTR_SUBU	dsubu
-#define	PTR_ADDU	daddu
-#define LI		dli
-#define LA		dla
-#define	PTR_SLL		dsll
-#define	PTR_SRL		dsrl
-#define	PTR_VAL		.dword
-#endif
-
-/*
- * LEAF(x, fsize)
- *
- *	Declare a leaf routine.
- */
-#define LEAF(x, fsize)		\
-	.align	3;		\
-	.globl x;		\
-	.ent x, 0;		\
-x: ;				\
-	.cfi_startproc; \
-	.frame $sp, fsize, $ra;	\
-	SETUP_GP		\
-
-/*
- * NON_LEAF(x)
- *
- *	Declare a non-leaf routine (a routine that makes other C calls).
- */
-#define NON_LEAF(x, fsize, retpc) \
-	.align	3;		\
-	.globl x;		\
-	.ent x, 0;		\
-x: ;				\
-	.cfi_startproc; \
-	.frame $sp, fsize, retpc; \
-	SETUP_GP		\
diff --git a/libc/private/bionic_ssp.h b/libc/private/bionic_ssp.h
index 9883d72..ea62cb9 100644
--- a/libc/private/bionic_ssp.h
+++ b/libc/private/bionic_ssp.h
@@ -26,20 +26,18 @@
  * SUCH DAMAGE.
  */
 
-#ifndef _PRIVATE_SSP_H
-#define _PRIVATE_SSP_H
+#pragma once
 
 #include <stdint.h>
 #include <sys/cdefs.h>
 
 __BEGIN_DECLS
 
-/* GCC uses this on ARM and MIPS; we use it on x86 to set the guard in TLS. */
+// The compiler uses this if it's not using TLS.
+// Currently that's on arm32 and on x86 before API 17.
 extern uintptr_t __stack_chk_guard;
 
-/* GCC calls this if a stack guard check fails. */
+// The compiler calls this if a stack guard check fails.
 extern void __stack_chk_fail();
 
 __END_DECLS
-
-#endif