native_client_sdk/src/doc/reference/sandbox_internals/arm-32-bit-sandbox.rst - Issue 176473002: PNaCl documentation: link to ARM 32-bit sandbox internals

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Issue 176473002: PNaCl documentation: link to ARM 32-bit sandbox internals (Closed) Base URL: svn://svn.chromium.org/chrome/trunk/src

Patch Set: Created 6 years, 10 months ago

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	1 .. _arm-32-bit-sandbox:

	2

1 ==================	3 ==================

2 ARM 32-bit Sandbox	4 ARM 32-bit Sandbox

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

4	6

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

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

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

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

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

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

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894 ^^^^^^^^^^^^^^	896 ^^^^^^^^^^^^^^

895	897

896 By now you're itching to see the sandbox validator's code and dissect	898 By now you're itching to see the sandbox validator's code and dissect

897 it. You'll have a disapointing read: at less that 500 lines of code	899 it. You'll have a disapointing read: at less that 500 lines of code

898 `validator.cc	900 `validator.cc

899 <http://src.chromium.org/viewvc/native_client/trunk/src/native_client/src/truste d/validator_arm/validator.cc>`_	901 <http://src.chromium.org/viewvc/native_client/trunk/src/native_client/src/truste d/validator_arm/validator.cc>`_

900 is quite simple to understand and much shorter than this document. It's	902 is quite simple to understand and much shorter than this document. It's

901 of course dependent on the `ARMv7 instruction table definition	903 of course dependent on the `ARMv7 instruction table definition

902 <http://src.chromium.org/viewvc/native_client/trunk/src/native_client/src/truste d/validator_arm/armv7.table>`_,	904 <http://src.chromium.org/viewvc/native_client/trunk/src/native_client/src/truste d/validator_arm/armv7.table>`_,

903 which teaches it about the ARMv7 instruction set.	905 which teaches it about the ARMv7 instruction set.

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