kotlinlang #kotlin-native

Hello. I'm attempting to compile the kotlin-native calculator example using the instructions here: https://github.com/JetBrains/kotlin-native/tree/master/samples/calculator But when I run

../gradlew :calculator:compileKonanKotlinArithmeticParserIphone --debug --stacktrace

from the

samples/calculator

, I get the following error:

> Task :calculator:compileKonanKotlinArithmeticParserIphone
11:04:52.692 [ERROR] [system.err] error: compilation failed: No such file or directory
11:04:52.692 [ERROR] [system.err]
11:04:52.692 [ERROR] [system.err]  * Source files: Parser.kt
11:04:52.692 [ERROR] [system.err]  * Compiler version info: Konan: EAP 0.6.0.0 / Kotlin: 1.2.0
11:04:52.692 [ERROR] [system.err]  * Output kind: FRAMEWORK
11:04:52.692 [ERROR] [system.err]
11:04:52.692 [ERROR] [system.err] exception: java.lang.Error: No such file or directory
11:04:52.692 [ERROR] [system.err]       at org.jetbrains.kotlin.backend.konan.llvm.LlvmUtilsKt.parseBitcodeFile(LlvmUtils.kt:266)
11:04:52.692 [ERROR] [system.err]       at org.jetbrains.kotlin.backend.konan.llvm.Runtime.<init>(Runtime.kt:30)
11
...
...

itnoles

12/29/2017, 3:18 AM

How does Objective-C able to do [NSData bytes] as const void into const char ?

Jorrit

12/30/2017, 5:14 PM

Why do Kotlin/Native produced binaries depend on libstdc++ ?

Jorrit

12/30/2017, 5:22 PM

Produced binaries are still rather large... 2MB for hello world in MIPS, for example

jkbbwr

12/30/2017, 9:52 PM

When trying to link against python

/usr/lib/libpython3.6m.so: error: undefined reference to 'getrandom', version 'GLIBC_2.25'
exception: java.lang.IllegalStateException: The /home/jakob/.konan/dependencies/target-gcc-toolchain-3-linux-x86-64/x86_64-unknown-linux-gnu/bin/ld.gold command returned non-zero exit code: 1.

Using cdef

headers = Python.h
libraryPaths = /usr/include/python3.6m
linkerOpts = -L/usr/lib -lpython3.6m -ldl -lutil -lm -Xlinker -export-dynamic

Guillaume Delorme

12/31/2017, 2:04 PM

Hello, I am trying to use OpenGL extensions on Linux with libepoxy. But cinterop don't seems to generate pointer to function declared with "#define" in the .h files. For example, in the .h file, there is :

#define glCreateShader epoxy_glCreateShader

In generated .kt file, epoxy_glCreateShader is present, but not glCreateShader:

var epoxy_glCreateShader: CPointer<CFunction<(GLenum) -> GLuint>>?
    get() = interpretPointed<CPointerVar<CFunction<(GLenum) -> GLuint>>>(kniBridge423()).value
    set(value) { interpretPointed<CPointerVar<CFunction<(GLenum) -> GLuint>>>(kniBridge423()).value = value }

Here the .def file I used with cinterop :

depends = posix
package = epoxy
headers = epoxy/gl.h epoxy/glx.h
headerFilter = epoxy/**
linkerOpts = -lepoxy
compilerOpts.linux = -I/usr/include

Did you have any idea ?

itnoles

12/31/2017, 8:34 PM

Do I need to create a stub file for UITableViewCell ?

spierce7

01/02/2018, 5:21 AM

I read a few weeks ago that the current threading model in kotlin-native would probably not be the same model with the 1.0 release. Has that been discussed any further, and are there any details about what may change before the official release?

Soslan

01/02/2018, 5:33 PM

Hello, i'm trying to produce framework from .kt file(For some reason it doesn't produce it from jar file) But ios project doesn't build, compilation fails with architecture error . Do you have any idea how to fix it?

ld: warning: ignoring file /Users/admin/Downloads/kotlin-native-master/samples/calculator/build/konan/bin/xcode/test.framework/test, file was built for x86_64 which is not the architecture being linked (arm64): /Users/admin/Downloads/kotlin-native-master/samples/calculator/build/konan/bin/xcode/test.framework/test
Undefined symbols for architecture arm64:
 “_OBJC_CLASS_$_Test”, referenced from:
     objc-class-ref in ViewController.o
ld: symbol(s) not found for architecture arm64
clang: error: linker command failed with exit code 1 (use -v to see invocation)

ftomassetti

01/02/2018, 5:44 PM

I wonder what is the current status of the Wasm target and CLion. Maybe I would have better luck running the compiler manually without using CMake…

christophsturm

01/02/2018, 7:01 PM

https://tbfleming.github.io/cib/ not really kotlin related but if the kotlin compiler could run without a jvm this would be possible with kotlin too

nish

01/03/2018, 1:12 AM

are you asking if kotlin native supports wasm?

01/03/2018, 6:02 AM

Is static library production supported on Windows?

andreasmattsson

01/05/2018, 4:17 PM

Hrmm... Doing some quick tests in kotlin native and noticing that

platform.posix.usleep

doesn't seem to do anything on Windows/mingw (no errors, no wait, just continues execution immediately) Is this expected behavior? On linux (WSL/Ubuntu on Windows) the same code works as expected.

alexcouch

01/07/2018, 7:36 AM

So is there some kind of docs for kotlin native that I can refer to in regards to importing libraries and using cmake to build and compile kotlin projects?

Sam

01/07/2018, 3:42 PM

Being new to Gradle, is there a blog or reference article that walks me through setting it up to work with K/N?

russhwolf

01/07/2018, 7:55 PM

If CMake isn't the long-term build solution, does that mean CLion won't be the long-term IDE?

salomonbrys

01/08/2018, 10:08 AM

When I diff the content of the same lib built for 2 different targets, the

linkdata/module_data_flow_graph

differs, so I'm not sure I can manually "merge" two klibs.

benny.huo

01/10/2018, 12:46 PM

Waiting for interop for jvm. 😁

➕ 3

salomonbrys

01/10/2018, 7:19 PM

Hi guys, do you know how to add a KLib file to a CMake project ?

Tristan Caron

01/12/2018, 11:19 AM

Is kotlin native supported by IDEA Ultimate?

rwachol

01/12/2018, 2:22 PM

hello I tried to play with koltin native and got stuck with this:

> target-sysroot-3-darwin-ios is not available; candidates:
  org.jetbrains.kotlin.konan.util.DependencySource$Remote$Internal@59336ce2
  Local(path=/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS11.2.sdk)
  Local(path=)

colintheshots

01/13/2018, 2:09 PM

I'm trying to build the KotlinConf iOS app and I keep getting fatal error: 'helperlib/helperlib.h' file not found. The file is clearly sitting right there in the filesystem. Why isn't gradle seeing it? The same thing seems to happen with a number of the kotlin-native samples where it can't find headers.

albertgao

01/13/2018, 8:40 PM

What kotlin apis can be compiled with kotlin native? do Kotlin-stdlib and kotlin-reflect on the list?

rootandy

01/15/2018, 12:12 PM

old gradle syntax was like

konan.targets = ['iphone', 'iphone_sim']

konanArtifacts {
framework('MyFramework')
}

Simone Civetta

01/17/2018, 12:03 PM

Hi, is there a way to conditionally compile blocks of code ? For instance :

#if os(iOS)
    // My iOS-only code
#endif

#if platform(framework)
    // My framework-only code
#endif

stepango

01/18/2018, 4:54 AM

Is it possible to access kotlin-native code from java using jni?

altavir

01/18/2018, 4:19 PM

I currently have some problems with using kotlin native with gradle in IDEA. What I am trying to do is to create a bridge between different languages using C API. I have this API in separate module. In kotlin-native module I have a

def

file in

src/main/c_interop

and expect to place kotlin files in

src/main/kotlin

. Now, I have a few problems. 1)

def

file does not accept relative header names. I have to declare absolute ones, which is not convenient. I remember seeing something about it in issues. Are there any fixes? 2)

src/main/kotlin

is not marked as a source tree. I can mark it myself in idea module options, but it resets itself after gradle sync. 3) generated interop headers are placed in build directory. I can't understand how to access them without creating a copy in the source tree. 4) IDE does not seem to recognize

konan

and

kotlinx.cinterop

packages. How can I load those. Can I do it at all?

Title

altavir

01/18/2018, 4:19 PM

def

file in

src/main/c_interop

and expect to place kotlin files in

src/main/kotlin

. Now, I have a few problems. 1)

def

file does not accept relative header names. I have to declare absolute ones, which is not convenient. I remember seeing something about it in issues. Are there any fixes? 2)

src/main/kotlin

konan

and

kotlinx.cinterop

packages. How can I load those. Can I do it at all?

olonho

01/19/2018, 7:27 AM

1) please use compiler options to specify library search path, like in https://github.com/JetBrains/kotlin-native/blob/1399ac9777a56f7263611fe2eac59b71b1a7f415/samples/videoplayer/build.gradle#L26

2-4) Idea is not supported for developing K/N apps yet

ilya.matveev

01/19/2018, 10:28 AM

Kotlin/Native has a preview support in CLion (including code completion/navigation for interop libraries) so you may use it. Here are some details: https://blog.jetbrains.com/kotlin/2017/11/kotlinnative-ide-support-preview/ Note that CLion uses CMake as a build system. You may translate your Gradle project into a CMake one by running

generateCMake

gradle task. Please try using CLion and give us feedback on it.

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