src/trusted/cpu_features/arch/x86/cpu_xgetbv.S - Issue 11864002: Move CPU features into its own static library.

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Side by Side Diff: src/trusted/cpu_features/arch/x86/cpu_xgetbv.S

Issue 11864002: Move CPU features into its own static library. (Closed) Base URL: svn://svn.chromium.org/native_client/trunk/src/native_client

Patch Set: Address bsy's comments by not building x86 target when host isn't x86. This is how things are curre… Created 7 years, 11 months ago

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1 /*	1 /*

2 * Copyright (c) 2012 The Native Client Authors. All rights reserved.	2 * Copyright (c) 2012 The Native Client Authors. All rights reserved.

3 * Use of this source code is governed by a BSD-style license that can be	3 * Use of this source code is governed by a BSD-style license that can be

4 * found in the LICENSE file.	4 * found in the LICENSE file.

5 */	5 */

6	6

7 /*	7 /*

8 * This exists only because Windows 64 doesn't support trivial inline assembly.	8 * This exists only because Windows 64 doesn't support trivial inline assembly.

9 * Visual Studio 2010 SP1 has an intrinsic _xgetbv() for this.	9 * Visual Studio 2010 SP1 has an intrinsic _xgetbv() for this.

10 * But earlier versions do not.	10 * But earlier versions do not.

(...skipping 11 matching lines...) Expand all Loading...
22 #endif	22 #endif

23 /*	23 /*

24 * This is "xgetbv" (no operands). Some assemblers don't know it yet.	24 * This is "xgetbv" (no operands). Some assemblers don't know it yet.

25 */	25 */

26 .byte 0x0f, 0x01, 0xd0	26 .byte 0x0f, 0x01, 0xd0

27 #if NACL_BUILD_SUBARCH == 64	27 #if NACL_BUILD_SUBARCH == 64

28 shlq $32, %rdx	28 shlq $32, %rdx

29 orq %rdx, %rax	29 orq %rdx, %rax

30 #endif	30 #endif

31 ret	31 ret

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