kasm alternatives and similar libraries
Based on the "Misc" category
-
jclasslib
jclasslib bytecode viewer is a tool that visualizes all aspects of compiled Java class files and the contained bytecode. -
kotlin-logging
Lightweight logging framework for Kotlin. Used as a wrapper for slf4j with Kotlin extensions. -
klock
Consistent and portable date and time utilities for multiplatform kotlin (JVM, JS and Common). -
Humanizer.jvm
Humanizer.jvm meets all your jvm needs for manipulating and displaying strings, enums, dates, times, timespans, numbers and quantities. -
actions-on-google-kotlin
Port of official Node.js SDK to Kotlin. Complete with all features and tests and nearly identical API. -
klutter
A mix of random small libraries for Kotlin, the smallest reside here until big enough for their own repository. -
SimpleDNN
SimpleDNN is a machine learning lightweight open-source library part of KotlinNLP and has been designed to support relevant neural network architectures in natural language processing tasks. -
kassava
This library provides some useful kotlin extension functions for implementing toString() and equals() without all of the boilerplate. -
kotlin-futures
A collections of extension functions to make the JVM Future, CompletableFuture, ListenableFuture API more functional and Kotlin like. -
log4k
Lightweight logging library for Kotlin/Multiplatform. Supports Android, iOS, JavaScript and plain JVM environments.
* Code Quality Rankings and insights are calculated and provided by Lumnify.
They vary from L1 to L5 with "L5" being the highest. Visit our partner's website for more details.
Do you think we are missing an alternative of kasm or a related project?
README
Kasm
Kasm is a runtime assembler library for Kotlin. It allows to assemble and execute machine code at runtime.
Features
- x86-64 up to AVX2
- Allows save code execution, handling segmentation faults and zero divisions etc.
- Support for automatic CPU feature detection (see
CpuId) - Contains a Kotlin DSL (see
Assembler) - Supports disassembling (through Capstone)
- Full control over encoding (see
EncodingOptions):- Encode with or without SIB (if possible)
- Force REX prefix
- Use long or short VEX prefix
- Set unused bits in Mod.RM/REX/VEX
- Legacy prefix order
Installation
$ git clone --recursive https://github.com/evoasm/kasm
The project does currently come without any build files. It is recommended that you import the project into IntelliJ IDEA.
Requirements
- Kotlin/JVM
- Capstone for disassembling (optional).
- POSIX-compliant OS (Linux and Mac OS X should both work).
- CMake (see below, optional)
If you want support for code execution and disassembling (through Capstone) you must build the corresponding native modules
$ cd kasm-native/lib
$ mkdir build
$ cd build
$ cmake ..
Shared libraries are output to kasm-native/lib. If you get a UnsatisfiedLinkError exception
add -Djava.library.path=../kasm-native/lib to your VM options.
Examples
Assembler
val buffer = NativeBuffer(1024)
Assembler(buffer).emitStackFrame {
mov(RBX, 0)
mov(RAX, 0)
divRdxRax(RBX)
}
buffer.execute() // will throw kasm.ZeroDivisionException
Assembler(buffer).emitStackFrame {
mov(RBX, AddressExpression(0x0))
}
buffer.execute() // will throw kasm.SegmentationFaultException
Instruction
val buffer = NativeBuffer(1024)
// add eax, [ebx]
AddR32Rm32.encode(buffer, EAX, AddressExpression32(EBX))
// add [ebx], eax
AddRmR32.encode(buffer, AddressExpression32(EBX), EAX)
CpuId
println(CpuId.features) // [SEP, CLFSH, DS, ACPI, SSE, SSE2, SS, ...
EncodingOptions
AddRm32Imm32.encode(buffer, EAX, 0x10, options = EncodingOptions(rexX = 0x0, forceRex = true))
println(buffer.toByteString()) //40 81 C0 10 00 00 00
AddRm32Imm32.encode(buffer, EAX, 0x10, options = EncodingOptions(rexX = 0x1, forceRex = true))
println(buffer.toByteString()) //42 81 C0 10 00 00 00
License
*Note that all licence references and agreements mentioned in the kasm README section above
are relevant to that project's source code only.