When chromium OS on a chromebook boots up, which directory is the first to be invoked and then executed
2018-08-21 23:10 GMT+02:00 dan Med <litokis.ta...@gmail.com>: > When chromium OS on a chromebook boots up, which directory is the first to > be invoked and then executed > > 2018-08-21 11:12 GMT+02:00 dan Med <litokis.ta...@gmail.com>: > >> Yeah thank you ! i'm going to dig it all ! >> >> 2018-08-21 10:55 GMT+02:00 Leszek Swirski <lesz...@chromium.org>: >> >>> Hi dan, >>> >>> Glad to hear things are working for you. The functions you're looking at >>> are intrinsic/runtime functions, and that syntax is the "natives" syntax, >>> enabled for user code with the "--allow-natives-syntax" flag. Some people >>> have used this in the past to e.g. track optimisation behaviour, like this >>> (no longer in-date) documentation from bluebird >>> <https://github.com/petkaantonov/bluebird/wiki/Optimization-killers#1-tooling> >>> . >>> >>> Those functions are found in C++, not in Javascript, as they are runtime >>> calls. They are declared in src/runtime/runtime.h, where you can also find >>> the documentation of the %Foo and %_Foo syntax. The definitions are in the >>> .cc files under src/runtime, prefixed with "Runtime_" -- e.g. %GetArrayKeys >>> is defined in runtime-array.cc >>> <https://cs.chromium.org/chromium/src/v8/src/runtime/runtime-array.cc?l=455&rcl=a3d09098655de3c43eec029fec2a766d63f36caf> >>> (btw, >>> https://cs.chromium.org/ is a great way of browsing the code). >>> Similarly you can find the C++ definition of %IsSmi by searching for >>> Runtime_IsSmi <https://cs.chromium.org/search/?q=Runtime_IsSmi>. >>> >>> %_IsSmi, with the underscore, is an inlined intrinsic (specifically, an >>> intrinsic that *can* be inlined by the compiler). In the interpreter, for >>> example, this is in the supported intrinsics list >>> <https://cs.chromium.org/chromium/src/v8/src/interpreter/interpreter-intrinsics.h?l=16&rcl=a3d09098655de3c43eec029fec2a766d63f36caf>, >>> so we output an InvokeIntrinsic bytecode >>> <https://cs.chromium.org/chromium/src/v8/src/interpreter/bytecode-array-builder.cc?l=1407&rcl=a3d09098655de3c43eec029fec2a766d63f36caf> >>> rather >>> than a runtime call bytecode, which has an generated assembly handler >>> which, during execution, dispatches on the intrinsic's id >>> <https://cs.chromium.org/chromium/src/v8/src/interpreter/interpreter-intrinsics-generator.cc?l=98&rcl=a3d09098655de3c43eec029fec2a766d63f36caf> >>> and for IsSmi does the Smi check >>> <https://cs.chromium.org/chromium/src/v8/src/interpreter/interpreter-intrinsics-generator.cc?l=189&rcl=a3d09098655de3c43eec029fec2a766d63f36caf>. >>> The optimizing compiler has similar logic. >>> >>> Hope that helps -- V8 is a complex codebase due to the interplay between >>> C++, javascript, generated assembly, etc., so don't expect to be able to >>> easily find where everything is defined or how everything works without >>> serious digging. >>> >>> - Leszek >>> >>> On Mon, Aug 20, 2018 at 6:14 PM dan Med <litokis.ta...@gmail.com> wrote: >>> >>>> How do these function get called >>>> %GetArrayKeys >>>> cause i can't seem to find them in the /src/array.js >>>> as well as %_IsSmi in the same file >>>> >>>> 2018-08-20 19:04 GMT+02:00 dan Med <litokis.ta...@gmail.com>: >>>> >>>>> Yes i will use it >>>>> >>>>> >>>>> 2018-08-20 15:57 GMT+02:00 <danny.p...@gmail.com>: >>>>> >>>>>> I have uploaded a .Net 4.5 application that I wrote over the weekend >>>>>> to configure and build V8. It's available here: V8Builder >>>>>> <https://github.com/dannypike/V8Builder>. >>>>>> >>>>>> In the README are TL;DR-style instructions if you don't want to use >>>>>> the GUI (or can't build it and don't have a friend with a C# compiler). >>>>>> >>>>>> I gave up trying to write simple instructions, it was much easier to >>>>>> write an application instead. >>>>>> >>>>>> Hope it helps, >>>>>> >>>>>> Dan >>>>>> >>>>>> -- >>>>>> -- >>>>>> v8-dev mailing list >>>>>> v8-dev@googlegroups.com >>>>>> http://groups.google.com/group/v8-dev >>>>>> --- >>>>>> You received this message because you are subscribed to the Google >>>>>> Groups "v8-dev" group. >>>>>> To unsubscribe from this group and stop receiving emails from it, >>>>>> send an email to v8-dev+unsubscr...@googlegroups.com. >>>>>> For more options, visit https://groups.google.com/d/optout. >>>>>> >>>>> >>>>> >>>> -- >>>> -- >>>> v8-dev mailing list >>>> v8-dev@googlegroups.com >>>> http://groups.google.com/group/v8-dev >>>> --- >>>> You received this message because you are subscribed to the Google >>>> Groups "v8-dev" group. >>>> To unsubscribe from this group and stop receiving emails from it, send >>>> an email to v8-dev+unsubscr...@googlegroups.com. >>>> For more options, visit https://groups.google.com/d/optout. >>>> >>> -- >>> -- >>> v8-dev mailing list >>> v8-dev@googlegroups.com >>> http://groups.google.com/group/v8-dev >>> --- >>> You received this message because you are subscribed to the Google >>> Groups "v8-dev" group. >>> To unsubscribe from this group and stop receiving emails from it, send >>> an email to v8-dev+unsubscr...@googlegroups.com. >>> For more options, visit https://groups.google.com/d/optout. >>> >> >> > -- -- v8-dev mailing list v8-dev@googlegroups.com http://groups.google.com/group/v8-dev --- You received this message because you are subscribed to the Google Groups "v8-dev" group. 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