native_client_sdk/src/doc/reference/sandbox_internals/arm-32-bit-sandbox.rst - Issue 2875303003: Add migration to WebAssembly information to PNaCl / NaCl docs.

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Issue 2875303003: Add migration to WebAssembly information to PNaCl / NaCl docs. (Closed)

Patch Set: fix Created 3 years, 6 months ago

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1 .. _arm-32-bit-sandbox:	1 .. _arm-32-bit-sandbox:

2	2

	3 .. include:: /migration/deprecation.inc

	4

3 ==================	5 ==================

4 ARM 32-bit Sandbox	6 ARM 32-bit Sandbox

5 ==================	7 ==================

6	8

7 Native Client for ARM is a sandboxing technology for running	9 Native Client for ARM is a sandboxing technology for running

8 programs---even malicious ones---safely, on computers that use 32-bit	10 programs---even malicious ones---safely, on computers that use 32-bit

9 ARM processors. The ARM sandbox is an extension of earlier work on	11 ARM processors. The ARM sandbox is an extension of earlier work on

10 Native Client for x86 processors. Security is provided with a low	12 Native Client for x86 processors. Security is provided with a low

11 performance overhead of about 10% over regular ARM code, and as you'll	13 performance overhead of about 10% over regular ARM code, and as you'll

12 see in this document the sandbox model is beautifully simple, meaning	14 see in this document the sandbox model is beautifully simple, meaning

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897 ^^^^^^^^^^^^^^	899 ^^^^^^^^^^^^^^

898	900

899 By now you're itching to see the sandbox validator's code and dissect	901 By now you're itching to see the sandbox validator's code and dissect

900 it. You'll have a disapointing read: at less that 500 lines of code	902 it. You'll have a disapointing read: at less that 500 lines of code

901 `validator.cc	903 `validator.cc

902 <http://src.chromium.org/viewvc/native_client/trunk/src/native_client/src/truste d/validator_arm/validator.cc>`_	904 <http://src.chromium.org/viewvc/native_client/trunk/src/native_client/src/truste d/validator_arm/validator.cc>`_

903 is quite simple to understand and much shorter than this document. It's	905 is quite simple to understand and much shorter than this document. It's

904 of course dependent on the `ARMv7 instruction table definition	906 of course dependent on the `ARMv7 instruction table definition

905 <http://src.chromium.org/viewvc/native_client/trunk/src/native_client/src/truste d/validator_arm/armv7.table>`_,	907 <http://src.chromium.org/viewvc/native_client/trunk/src/native_client/src/truste d/validator_arm/armv7.table>`_,

906 which teaches it about the ARMv7 instruction set.	908 which teaches it about the ARMv7 instruction set.

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