Update libvpx sources to v0.9.2-35-ga8a38bc. ...

source/libvpx/vpx_ports/x86_abi_support.asm

 ;
-;  Copyright (c) 2010 The VP8 project authors. All Rights Reserved.
+;  Copyright (c) 2010 The WebM project authors. All Rights Reserved.
 ;
 ;  Use of this source code is governed by a BSD-style license
 ;  that can be found in the LICENSE file in the root of the source
 ;  tree. An additional intellectual property rights grant can be found
 ;  in the file PATENTS.  All contributing project authors may
 ;  be found in the AUTHORS file in the root of the source tree.
 ;
 
 
 %include "vpx_config.asm"
@@ skipping 70 matching lines @@
 
 ; ALIGN_STACK <alignment> <register>
 ; This macro aligns the stack to the given alignment (in bytes). The stack
 ; is left such that the previous value of the stack pointer is the first
 ; argument on the stack (ie, the inverse of this macro is 'pop rsp.')
 ; This macro uses one temporary register, which is not preserved, and thus
 ; must be specified as an argument.
 %macro ALIGN_STACK 2
     mov         %2, rsp
     and         rsp, -%1
-    sub         rsp, %1 - REG_SZ_BYTES
+    lea         rsp, [rsp - (%1 - REG_SZ_BYTES)]
     push        %2
 %endmacro
 
 
 ;
 ; The Microsoft assembler tries to impose a certain amount of type safety in
 ; its register usage. YASM doesn't recognize these directives, so we just
 ; %define them away to maintain as much compatibility as possible with the
 ; original inline assembler we're porting from.
 ;
 %idefine PTR
 %idefine XMMWORD
 %idefine MMWORD
 
-
 ; PIC macros
 ;
 %if ABI_IS_32BIT
   %if CONFIG_PIC=1
   %ifidn __OUTPUT_FORMAT__,elf32
     %define WRT_PLT wrt ..plt
     %macro GET_GOT 1
       extern _GLOBAL_OFFSET_TABLE_
       push %1
       call %%get_got
+      %%sub_offset:
+      jmp %%exitGG
       %%get_got:
-      pop %1
-      add %1, _GLOBAL_OFFSET_TABLE_ + $$ - %%get_got wrt ..gotpc
+      mov %1, [esp]
+      add %1, _GLOBAL_OFFSET_TABLE_ + $$ - %%sub_offset wrt ..gotpc
+      ret
+      %%exitGG:
       %undef GLOBAL
       %define GLOBAL + %1 wrt ..gotoff
       %undef RESTORE_GOT
       %define RESTORE_GOT pop %1
     %endmacro
   %elifidn __OUTPUT_FORMAT__,macho32
     %macro GET_GOT 1
       push %1
       call %%get_got
+      %%sub_offset:
+      jmp  %%exitGG
       %%get_got:
-      pop %1
-      add %1, fake_got - %%get_got
+      mov  %1, [esp]
+      add %1, fake_got - %%sub_offset
+      ret
+      %%exitGG:
       %undef GLOBAL
       %define GLOBAL + %1 - fake_got
       %undef RESTORE_GOT
       %define RESTORE_GOT pop %1
     %endmacro
   %endif
   %endif
   %define HIDDEN_DATA(x) x
 %else
   %macro GET_GOT 1
@@ skipping 110 matching lines @@
 
 ; Tell GNU ld that we don't require an executable stack.
 %ifidn __OUTPUT_FORMAT__,elf32
 section .note.GNU-stack noalloc noexec nowrite progbits
 section .text
 %elifidn __OUTPUT_FORMAT__,elf64
 section .note.GNU-stack noalloc noexec nowrite progbits
 section .text
 %endif