Define PRIVATE and add it to all global symbols so we don't export assembly functions.

libvpx/source/libvpx/vp8/encoder/x86/quantize_sse2.asm

 ;
 ;  Copyright (c) 2010 The WebM project authors. All Rights Reserved.
 ;
 ;  Use of this source code is governed by a BSD-style license and patent
 ;  grant that can be found in the LICENSE file in the root of the source
 ;  tree. All contributing project authors may be found in the AUTHORS
 ;  file in the root of the source tree.
 ;
 
 
 %include "vpx_ports/x86_abi_support.asm"
 %include "asm_enc_offsets.asm"
 
 
 ; void vp8_regular_quantize_b_sse2 | arg
 ;  (BLOCK  *b,                     |  0
 ;   BLOCKD *d)                     |  1
 
-global sym(vp8_regular_quantize_b_sse2)
+global sym(vp8_regular_quantize_b_sse2) PRIVATE
 sym(vp8_regular_quantize_b_sse2):
     push        rbp
     mov         rbp, rsp
     SAVE_XMM
     GET_GOT     rbx
     push        rsi
 
 %if ABI_IS_32BIT
     push        rdi
 %else
@@ skipping 210 matching lines @@
 
 ; int vp8_fast_quantize_b_impl_sse2 | arg
 ;  (short *coeff_ptr,               |  0
 ;   short *qcoeff_ptr,              |  1
 ;   short *dequant_ptr,             |  2
 ;   short *inv_scan_order,          |  3
 ;   short *round_ptr,               |  4
 ;   short *quant_ptr,               |  5
 ;   short *dqcoeff_ptr)             |  6
 
-global sym(vp8_fast_quantize_b_impl_sse2)
+global sym(vp8_fast_quantize_b_impl_sse2) PRIVATE
 sym(vp8_fast_quantize_b_impl_sse2):
     push        rbp
     mov         rbp, rsp
     SHADOW_ARGS_TO_STACK 7
     push        rsi
     push        rdi
     ; end prolog
 
     mov         rdx, arg(0)                 ;coeff_ptr
     mov         rcx, arg(2)                 ;dequant_ptr
@@ skipping 89 matching lines @@
 zig_zag:
   dw 0x0000, 0x0001, 0x0004, 0x0008
   dw 0x0005, 0x0002, 0x0003, 0x0006
   dw 0x0009, 0x000c, 0x000d, 0x000a
   dw 0x0007, 0x000b, 0x000e, 0x000f
 inv_zig_zag:
   dw 0x0001, 0x0002, 0x0006, 0x0007
   dw 0x0003, 0x0005, 0x0008, 0x000d
   dw 0x0004, 0x0009, 0x000c, 0x000e
   dw 0x000a, 0x000b, 0x000f, 0x0010