universal | Universal Shared Library User-space Loader

 by   Binject Go Version: Current License: GPL-3.0

kandi X-RAY | universal Summary

kandi X-RAY | universal Summary

universal is a Go library. universal has no bugs, it has no vulnerabilities, it has a Strong Copyleft License and it has low support. You can download it from GitHub.

This loader provides a unified Go interface for loading shared libraries from memory on Windows, OSX, and Linux. Also included is a cross-platform Call() implementation that lets you call into exported symbols from those libraries without stress.
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            kandi-support Support

              universal has a low active ecosystem.
              It has 184 star(s) with 20 fork(s). There are 8 watchers for this library.
              OutlinedDot
              It had no major release in the last 6 months.
              There are 6 open issues and 1 have been closed. On average issues are closed in 145 days. There are no pull requests.
              It has a neutral sentiment in the developer community.
              The latest version of universal is current.

            kandi-Quality Quality

              universal has 0 bugs and 0 code smells.

            kandi-Security Security

              universal has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.
              universal code analysis shows 0 unresolved vulnerabilities.
              There are 0 security hotspots that need review.

            kandi-License License

              universal is licensed under the GPL-3.0 License. This license is Strong Copyleft.
              Strong Copyleft licenses enforce sharing, and you can use them when creating open source projects.

            kandi-Reuse Reuse

              universal releases are not available. You will need to build from source code and install.
              Installation instructions are not available. Examples and code snippets are available.

            Top functions reviewed by kandi - BETA

            kandi has reviewed universal and discovered the below as its top functions. This is intended to give you an instant insight into universal implemented functionality, and help decide if they suit your requirements.
            • Call executes a function .
            • LoadLibraryImpl loads a library from an ELF .
            • CopySections copies the contents of a pefile into a pefile .
            • main example of image
            • findMachoPtr finds the macho pointer at addr .
            • findMacho returns the base at the given address .
            • virtualAlloc invokes a virtual allocation .
            • isPtrValid returns true if p is a valid pointer .
            • NewLoader returns a new Loader .
            Get all kandi verified functions for this library.

            universal Key Features

            No Key Features are available at this moment for universal.

            universal Examples and Code Snippets

            No Code Snippets are available at this moment for universal.

            Community Discussions

            QUESTION

            I want to move semantics but I get a universal reference which hides copy semantics
            Asked 2022-Apr-11 at 10:47

            How can I deal with universal reference, when I want either to copy semantics with a function parameter const T& or move semantics with function parameter T&&. The later hides the first.

            A sample code with algebraic vector operators follow.

            ...

            ANSWER

            Answered 2022-Apr-11 at 09:33

            You just need to remove const from const T&.

            With using U = std::array;:

            The issue here is that T&& deduces T to U, not const U, since a in main isn't const. And binding to U& instead of const U& is considered better in overload resolution.

            If you remove const from const T&, then both candidates will after deduction have a function parameter U& and consequently neither will be better based on that.

            However, in partial ordering of function templates the T& template will win over T&& and so the former will be chosen if the function argument is a lvalue.

            This does however have the consequence that a in the function will not be const qualified. You can obtain a const reference from it by applying std::as_const.

            Alternatively you can use a requires clause or std::enable_if to constrain the T&& template on T being a non-reference type. Or you can use a single function template and decide in its body how to operate based on the type of the reference with if constexpr. Relevant type traits: std::is_lvalue_reference_v or std::is_reference_v and std::is_lvalue_reference_v.

            Source https://stackoverflow.com/questions/71825411

            QUESTION

            Apps targeting Android 12 and higher required to specify an explicit value for `android:exported` [Cordova]
            Asked 2022-Apr-01 at 20:06

            When I am running to make the Apk in GitHub I got the error. As I am building the Apk in GitHub. There is no way to define something inside manifest as it is building every time fresh. All I can do is inside the Config.Xml file. After Adding android:exported="false" to it, also getting same error. Both images for this question reference attached here. GitHub Error and Config.Xml. Help will be appreciated.

            ...

            ANSWER

            Answered 2021-Nov-18 at 19:22

            You can try like this in config.xml under android platform -

            Source https://stackoverflow.com/questions/68678008

            QUESTION

            Indexed Initial algebras for GADTs
            Asked 2022-Mar-31 at 09:23

            In his paper Generics for the Masses Hinze reviews encoding of data type.

            Starting from Nat

            ...

            ANSWER

            Answered 2022-Mar-14 at 18:05

            The difference is the category. Nat is an initial algebra in the category of types. Rep is an initial algebra in the category of indexed types. The category of indexed types has as objects type constructors of kind * -> *, and as morphisms from f ~> g, functions of type forall t. f t -> g t.

            Then Rep is the initial algebra for the functor RepF defined as follows:

            Source https://stackoverflow.com/questions/71469359

            QUESTION

            The unauthenticated git protocol on port 9418 is no longer supported
            Asked 2022-Mar-27 at 13:23

            I have been using github actions for quite sometime but today my deployments started failing. Below is the error from github action logs

            ...

            ANSWER

            Answered 2022-Mar-16 at 07:01

            First, this error message is indeed expected on Jan. 11th, 2022.
            See "Improving Git protocol security on GitHub".

            January 11, 2022 Final brownout.

            This is the full brownout period where we’ll temporarily stop accepting the deprecated key and signature types, ciphers, and MACs, and the unencrypted Git protocol.
            This will help clients discover any lingering use of older keys or old URLs.

            Second, check your package.json dependencies for any git:// URL, as in this example, fixed in this PR.

            As noted by Jörg W Mittag:

            There was a 4-month warning.
            The entire Internet has been moving away from unauthenticated, unencrypted protocols for a decade, it's not like this is a huge surprise.

            Personally, I consider it less an "issue" and more "detecting unmaintained dependencies".

            Plus, this is still only the brownout period, so the protocol will only be disabled for a short period of time, allowing developers to discover the problem.

            The permanent shutdown is not until March 15th.

            For GitHub Actions:

            As in actions/checkout issue 14, you can add as a first step:

            Source https://stackoverflow.com/questions/70663523

            QUESTION

            CMake error while running flutter desktop application
            Asked 2022-Mar-04 at 14:39

            When I am trying to launch flutter desktop application, this error occurred to me:

            "CMake Error at CMakeLists.txt:2 (project):

            Generator

            Visual Studio 16 2019

            could not find any instance of Visual Studio.

            Building Windows application...

            Exception: Unable to generate build files"

            What I did...

            1- Installed Visual Studio 2022 with (Desktop development with C++ and Universal Windows Platform development)

            2- Run these commands:

            flutter config --enable-windows-desktop

            flutter create .

            flutter run -d windows

            Also I tried to use dev channel:

            flutter channel dev

            flutter upgrade

            flutter config--enable-windows-uwp-desktop

            And these what I have when I run flutter devices and flutter doctor

            flutter devices

            4 connected devices: Windows (desktop) • windows • windows-x64 • Microsoft Windows [Version 10.0.22000.318] Windows (UWP) (desktop) • winuwp • windows-uwp-x64 • Chrome (web) • chrome • web-javascript • Google Chrome 94.0.4606.81 Edge (web) • edge • web-javascript • Microsoft Edge 95.0.1020.44

            flutter doctor

            [√] Flutter (Channel dev, 2.6.0-11.0.pre, on Microsoft Windows [Version 10.0.22000.318], locale en-US)

            [√] Android toolchain - develop for Android devices (Android SDK version 31.0.0)

            [√] Chrome - develop for the web

            [√] Visual Studio - develop for Windows (Visual Studio Community 2022 17.0.0)

            [√] Android Studio (version 2020.3)

            [√] VS Code (version 1.61.1)

            [√] Connected device (4 available)

            • No issues found!

            ...

            ANSWER

            Answered 2022-Feb-03 at 20:25

            3rd Feb 2022 Update: The latest version of Flutter, version 2.10 stable, has this issue fixed along with stable desktop support for Windows.

            Update: The flutter beta channel (2.9.0-0.1.pre onwards) comes with a fix.

            According to this issue on the main flutter repo, Flutter prior to version 2.9 does not support Visual Studio 2022. If you want to build while targeting Windows you'll either have to install VS 2019 alongside 2022 or use this workaround:

            The current workaround is : download your appropriate flutter version, edit _cmakeVisualStudioGeneratorIdentifier in https://github.com/flutter/flutter/blob/master/packages/flutter_tools/lib/src/windows/build_windows.dart#L25-L28 to your appropriate CMake Visual Studio Generator. You can get the currently available CMake Visual Studio Generators on this page : https://cmake.org/cmake/help/latest/manual/cmake-generators.7.html#id13.

            By default the _cmakeVisualStudioGeneratorIdentifier comes with CMake Visual Studio 2019 Generator. If you are going to use CMake Visual Studio 2022 Generator - firstly ensure your visual studio 2022 distribution contains Cmake 3.21 or later, refer https://cmake.org/cmake/help/latest/generator/Visual%20Studio%2017%202022.html for details.

            To apply these changes on Windows:

            • Edit path\to\flutter\packages\flutter_tools\lib\src\windows\build_windows.dart, and change the constant on line 28 from 'Visual Studio 16 2019' to 'Visual Studio 17 2022'
            • Delete flutter_tools.stamp and flutter_tools.snapshot in path\to\flutter\bin\cache\ (to cause flutter to regenerate its build tools with the new source code you changed above)
            • In the project path, run flutter clean to remove cached CMake files referring to the wrong Visual Studio version
            • In the project path, run flutter run -d windows to restart the build (successfully, this time)

            Source https://stackoverflow.com/questions/69944913

            QUESTION

            C++ passing by const ref vs universal ref
            Asked 2022-Jan-16 at 18:47

            So I've recently learned about universal references and reference collapsing.

            So let's say I have two different implementations of a max function like such.

            ...

            ANSWER

            Answered 2022-Jan-16 at 18:47

            The first one should probably be:

            Source https://stackoverflow.com/questions/70688150

            QUESTION

            When is memset to 0 nonportable?
            Asked 2021-Nov-30 at 23:39

            From this comment in GCC bug #53119:

            In C, {0} is the universal zero initializer equivalent to C++'s {} (the latter being invalid in C). It is necessary to use whenever you want a zero-initialized object of a complete but conceptually-opaque or implementation-defined type. The classic example in the C standard library is mbstate_t:

            ...

            ANSWER

            Answered 2021-Nov-30 at 14:20

            memset(p, 0, n) sets to all-bits-0.
            An initializer of { 0 } sets to the value 0.
            On just about any machine you've ever heard of, the two concepts are equivalent.

            However, there have been machines where the floating-point value 0.0 was not represented by a bit pattern of all-bits-0. And there have been machines where a null pointer was not represented by a bit pattern of all-bits-0, either. On those machines, an initializer of { 0 } would always get you the zero initialization you wanted, while memset might not.

            See also question 7.31 and question 5.17 in the C FAQ list.

            Postscript: It's not clear to me why mbstate_t would be a "classic example" of this issue, though.

            P.P.S. One other difference, as pointed out by @ryker: memset will set any "holes" in a padded structure to 0, while setting that structure to { 0 } might not.

            Source https://stackoverflow.com/questions/70170019

            QUESTION

            GIFs not animating in the Android version of my React Native app
            Asked 2021-Nov-23 at 14:57

            I am struggling to get my GIFs to animate on the Android version of my RN application. The iOS version is animating the looping GIFs as expected but I only see a stuck "single frame" image from the GIF on the Android device.

            According to the debugging and RN-documentation it's required to add a few lines of implementation to the dependencies within the /android/app/build.gradle, but even after cleaning the gradle (running ./gradlew clean in the /android folder) and deleting the cache of the RN app (running react-native start --reset-cache in the project root folder), I do not see any difference in my application.

            I have googled and tried a lot. Based on my debugging adventure, I have tried and double-checked these suggestions, that seems to work for others but it doesn't seem to work for me...

            • I have tried several versions of the fresco-libraries that seems to be required and I have also tried placing the lines in both the bottom as well as the top of the dependencies.
            • Some answers also suggest to add one or more lines of code to the android/app/proguard-rules.pro but this doesn't change anything either.
            • I use GIFs in different ways of my application but it always has width and height included to the style property on the .
            • I have tried with GIF-uris from different CDNs and domains.
            • Reinstalled the app on my test devices.
            • Closed and reopened my code editors.

            I'm using the following versions:

            • Java: 11.0.12
            • React Native: 0.65
            • Android SDK: 30.0.2
            • npm: 6.14.4

            This is my full /android/app/build.gradle:

            ...

            ANSWER

            Answered 2021-Aug-24 at 17:29

            QUESTION

            Can't install Python 3.10.0 with pyenv on MacOS
            Asked 2021-Nov-18 at 18:37

            Trying to install Python 3.10.0 on MacOS 11.6 (Intel) with pyenv 2.1.0 (from homebrew) fails with:

            ...

            ANSWER

            Answered 2021-Oct-06 at 05:56

            Try env ARCHFLAGS="-arch x86_64"

            (that works for me for other Python-related tools, I don't use pyenv myself).

            Rationale: modern macOS supports 2 architectures: intel (x86_64) and m1 (arm-something). Compiling for only one architecture is easier.

            Source https://stackoverflow.com/questions/69459268

            QUESTION

            Deduplication/merging of mutable data in Python
            Asked 2021-Oct-21 at 00:04
            High-level view of the problem

            I have X sources that contain info about assets (hostname, IPs, MACs, os, etc.) in our environment. The sources contain anywhere from 1500 to 150k entries (at least the ones I use now). My script is supposed to query each of them, gather that data, deduplicate it by merging info about the same assets from different sources, and return unified list of all entries. My current implementation does work, but it's slow for bigger datasets. I'm curious if there is better way to accomplish what I'm trying to do.

            Universal problem
            Deduplication of data by merging similar entries with the caveat that merging two assets might change whether the resulting asset will be similar to the third asset that was similar to the first two before merging.
            Example:
            ~ similarity, + merging
            (before) A ~ B ~ C
            (after) (A+B) ~ C or (A+B) !~ C

            I tried looking for people having the same issue, I only found What is an elegant way to remove duplicate mutable objects in a list in Python?, but it didn't include merging of data which is crucial in my case.

            The classes used

            Simplified for ease of reading and understanding with unneeded parts removed - general functionality is intact.

            ...

            ANSWER

            Answered 2021-Oct-21 at 00:04

            Summary: we define two sketch functions f and g from entries to sets of “sketches” such that two entries e and e′ are similar if and only if f(e) ∩ g(e′) ≠ ∅. Then we can identify merges efficiently (see the algorithm at the end).

            I’m actually going to define four sketch functions, fos, faddr, gos, and gaddr, from which we construct

            • f(e) = {(x, y) | x ∈ fos(e), y ∈ faddr(e)}
            • g(e) = {(x, y) | x ∈ gos(e), y ∈ gaddr(e)}.

            fos and gos are the simpler of the four. fos(e) includes

            • (1, e.os), if e.os is known
            • (2,), if e.os is known
            • (3,), if e.os is unknown.

            gos(e) includes

            • (1, e.os), if e.os is known
            • (2,), if e.os is unknown
            • (3,).

            faddr and gaddr are more complicated because there are prioritized attributes, and they can have multiple values. Nevertheless, the same trick can be made to work. faddr(e) includes

            • (1, h) for each h in e.hostname
            • (2, m) for each m in e.mac, if e.hostname is nonempty
            • (3, m) for each m in e.mac, if e.hostname is empty
            • (4, i) for each i in e.ip, if e.hostname and e.mac are nonempty
            • (5, i) for each i in e.ip, if e.hostname is empty and e.mac is nonempty
            • (6, i) for each i in e.ip, if e.hostname is nonempty and e.mac is empty
            • (7, i) for each i in e.ip, if e.hostname and e.mac are empty.

            gaddr(e) includes

            • (1, h) for each h in e.hostname
            • (2, m) for each m in e.mac, if e.hostname is empty
            • (3, m) for each m in e.mac
            • (4, i) for each i in e.ip, if e.hostname is empty and e.mac is empty
            • (5, i) for each i in e.ip, if e.mac is empty
            • (6, i) for each i in e.ip, if e.hostname is empty
            • (7, i) for each i in e.ip.

            The rest of the algorithm is as follows.

            • Initialize a defaultdict(list) mapping a sketch to a list of entry identifiers.

            • For each entry, for each of the entry’s f-sketches, add the entry’s identifier to the appropriate list in the defaultdict.

            • Initialize a set of edges.

            • For each entry, for each of the entry’s g-sketches, look up the g-sketch in the defaultdict and add an edge from the entry’s identifiers to each of the other identifiers in the list.

            Now that we have a set of edges, we run into the problem that @btilly noted. My first instinct as a computer scientist is to find connected components, but of course, merging two entries may cause some incident edges to disappear. Instead you can use the edges as candidates for merging, and repeat until the algorithm above returns no edges.

            Source https://stackoverflow.com/questions/69636389

            Community Discussions, Code Snippets contain sources that include Stack Exchange Network

            Vulnerabilities

            No vulnerabilities reported

            Install universal

            You can download it from GitHub.

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            This is the first loader I've seen, Golang or not, that works on the M1!.
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