create share library with WiringPI





.everyoneloves__top-leaderboard:empty,.everyoneloves__mid-leaderboard:empty,.everyoneloves__bot-mid-leaderboard:empty{ height:90px;width:728px;box-sizing:border-box;
}







0















I want create a shared library, because I need this for JNI.



I have two files



PiezoSpeaker.c



#include "PiezoSpeaker.h"

#include <stdio.h>



#include <string.h>

#include <wiringPi.h>

#include <softTone.h>



JNIEXPORT void JNICALL Java_PiezoSpeaker_tone__I

(JNIEnv *env, jobject jobject, jint khz) {

wiringPiSetup();

softToneCreate(29);

softToneWrite (29, khz);

}



JNIEXPORT void JNICALL Java_PiezoSpeaker_tone__II

(JNIEnv *env, jobject jobject, jint khz, jint duration) {



}


and



PiezoSpeaker.h



/* DO NOT EDIT THIS FILE - it is machine generated */

#include <jni.h>

/* Header for class PiezoSpeaker */



#ifndef _Included_PiezoSpeaker

#define _Included_PiezoSpeaker

#ifdef __cplusplus

extern "C" {

#endif

/*

 * Class:     PiezoSpeaker

 * Method:    tone

 * Signature: (I)V

 */

JNIEXPORT void JNICALL Java_PiezoSpeaker_tone__I

  (JNIEnv *, jobject, jint);



/*

 * Class:     PiezoSpeaker

 * Method:    tone

 * Signature: (II)V

 */

JNIEXPORT void JNICALL Java_PiezoSpeaker_tone__II

  (JNIEnv *, jobject, jint, jint);



#ifdef __cplusplus

}

#endif

#endif


I compile this with gcc



gcc -c -fPIC -I"/usr/lib/jvm/jdk-8-oracle-arm32-vfp-hflt/include/" -I"/usr/lib/jvm/jdk-8-oracle-arm32-vfp-hflt/include/linux" -IwiringPi -Ipthread PiezoSpeaker.c



gcc -shared -o share.so PiezoSpeaker.o


I become the error, that the symbol is undefined. The gcc command is wrong, because it does not include the wiringPi Library. How can I link the library, that the WiringPi Lib is included?






java gcc java-native-interface wiringpi







share|improve this question


















  • 1





    -lWiringPi ? You may need a -L argument to tell the linker where to look.

    – Botje
    Nov 22 '18 at 15:55


















0















I want create a shared library, because I need this for JNI.



I have two files



PiezoSpeaker.c



#include "PiezoSpeaker.h"

#include <stdio.h>



#include <string.h>

#include <wiringPi.h>

#include <softTone.h>



JNIEXPORT void JNICALL Java_PiezoSpeaker_tone__I

(JNIEnv *env, jobject jobject, jint khz) {

wiringPiSetup();

softToneCreate(29);

softToneWrite (29, khz);

}



JNIEXPORT void JNICALL Java_PiezoSpeaker_tone__II

(JNIEnv *env, jobject jobject, jint khz, jint duration) {



}


and



PiezoSpeaker.h



/* DO NOT EDIT THIS FILE - it is machine generated */

#include <jni.h>

/* Header for class PiezoSpeaker */



#ifndef _Included_PiezoSpeaker

#define _Included_PiezoSpeaker

#ifdef __cplusplus

extern "C" {

#endif

/*

 * Class:     PiezoSpeaker

 * Method:    tone

 * Signature: (I)V

 */

JNIEXPORT void JNICALL Java_PiezoSpeaker_tone__I

  (JNIEnv *, jobject, jint);



/*

 * Class:     PiezoSpeaker

 * Method:    tone

 * Signature: (II)V

 */

JNIEXPORT void JNICALL Java_PiezoSpeaker_tone__II

  (JNIEnv *, jobject, jint, jint);



#ifdef __cplusplus

}

#endif

#endif


I compile this with gcc



gcc -c -fPIC -I"/usr/lib/jvm/jdk-8-oracle-arm32-vfp-hflt/include/" -I"/usr/lib/jvm/jdk-8-oracle-arm32-vfp-hflt/include/linux" -IwiringPi -Ipthread PiezoSpeaker.c



gcc -shared -o share.so PiezoSpeaker.o


I become the error, that the symbol is undefined. The gcc command is wrong, because it does not include the wiringPi Library. How can I link the library, that the WiringPi Lib is included?






java gcc java-native-interface wiringpi







share|improve this question


















  • 1





    -lWiringPi ? You may need a -L argument to tell the linker where to look.

    – Botje
    Nov 22 '18 at 15:55














0












0








0


0






I want create a shared library, because I need this for JNI.



I have two files



PiezoSpeaker.c



#include "PiezoSpeaker.h"

#include <stdio.h>



#include <string.h>

#include <wiringPi.h>

#include <softTone.h>



JNIEXPORT void JNICALL Java_PiezoSpeaker_tone__I

(JNIEnv *env, jobject jobject, jint khz) {

wiringPiSetup();

softToneCreate(29);

softToneWrite (29, khz);

}



JNIEXPORT void JNICALL Java_PiezoSpeaker_tone__II

(JNIEnv *env, jobject jobject, jint khz, jint duration) {



}


and



PiezoSpeaker.h



/* DO NOT EDIT THIS FILE - it is machine generated */

#include <jni.h>

/* Header for class PiezoSpeaker */



#ifndef _Included_PiezoSpeaker

#define _Included_PiezoSpeaker

#ifdef __cplusplus

extern "C" {

#endif

/*

 * Class:     PiezoSpeaker

 * Method:    tone

 * Signature: (I)V

 */

JNIEXPORT void JNICALL Java_PiezoSpeaker_tone__I

  (JNIEnv *, jobject, jint);



/*

 * Class:     PiezoSpeaker

 * Method:    tone

 * Signature: (II)V

 */

JNIEXPORT void JNICALL Java_PiezoSpeaker_tone__II

  (JNIEnv *, jobject, jint, jint);



#ifdef __cplusplus

}

#endif

#endif


I compile this with gcc



gcc -c -fPIC -I"/usr/lib/jvm/jdk-8-oracle-arm32-vfp-hflt/include/" -I"/usr/lib/jvm/jdk-8-oracle-arm32-vfp-hflt/include/linux" -IwiringPi -Ipthread PiezoSpeaker.c



gcc -shared -o share.so PiezoSpeaker.o


I become the error, that the symbol is undefined. The gcc command is wrong, because it does not include the wiringPi Library. How can I link the library, that the WiringPi Lib is included?






java gcc java-native-interface wiringpi







share|improve this question














I want create a shared library, because I need this for JNI.



I have two files



PiezoSpeaker.c



#include "PiezoSpeaker.h"

#include <stdio.h>



#include <string.h>

#include <wiringPi.h>

#include <softTone.h>



JNIEXPORT void JNICALL Java_PiezoSpeaker_tone__I

(JNIEnv *env, jobject jobject, jint khz) {

wiringPiSetup();

softToneCreate(29);

softToneWrite (29, khz);

}



JNIEXPORT void JNICALL Java_PiezoSpeaker_tone__II

(JNIEnv *env, jobject jobject, jint khz, jint duration) {



}


and



PiezoSpeaker.h



/* DO NOT EDIT THIS FILE - it is machine generated */

#include <jni.h>

/* Header for class PiezoSpeaker */



#ifndef _Included_PiezoSpeaker

#define _Included_PiezoSpeaker

#ifdef __cplusplus

extern "C" {

#endif

/*

 * Class:     PiezoSpeaker

 * Method:    tone

 * Signature: (I)V

 */

JNIEXPORT void JNICALL Java_PiezoSpeaker_tone__I

  (JNIEnv *, jobject, jint);



/*

 * Class:     PiezoSpeaker

 * Method:    tone

 * Signature: (II)V

 */

JNIEXPORT void JNICALL Java_PiezoSpeaker_tone__II

  (JNIEnv *, jobject, jint, jint);



#ifdef __cplusplus

}

#endif

#endif


I compile this with gcc



gcc -c -fPIC -I"/usr/lib/jvm/jdk-8-oracle-arm32-vfp-hflt/include/" -I"/usr/lib/jvm/jdk-8-oracle-arm32-vfp-hflt/include/linux" -IwiringPi -Ipthread PiezoSpeaker.c



gcc -shared -o share.so PiezoSpeaker.o


I become the error, that the symbol is undefined. The gcc command is wrong, because it does not include the wiringPi Library. How can I link the library, that the WiringPi Lib is included?






java gcc java-native-interface wiringpi




java gcc java-native-interface wiringpi






share|improve this question













share|improve this question











share|improve this question




share|improve this question










asked Nov 22 '18 at 8:34









HoonesHoones

203




203








  • 1





    -lWiringPi ? You may need a -L argument to tell the linker where to look.

    – Botje
    Nov 22 '18 at 15:55














  • 1





    -lWiringPi ? You may need a -L argument to tell the linker where to look.

    – Botje
    Nov 22 '18 at 15:55








1




1





-lWiringPi ? You may need a -L argument to tell the linker where to look.

– Botje
Nov 22 '18 at 15:55





-lWiringPi ? You may need a -L argument to tell the linker where to look.

– Botje
Nov 22 '18 at 15:55












0






active

oldest

votes












Your Answer






StackExchange.ifUsing("editor", function () {
StackExchange.using("externalEditor", function () {
StackExchange.using("snippets", function () {
StackExchange.snippets.init();
});
});
}, "code-snippets");

StackExchange.ready(function() {
var channelOptions = {
tags: "".split(" "),
id: "1"
};
initTagRenderer("".split(" "), "".split(" "), channelOptions);

StackExchange.using("externalEditor", function() {
// Have to fire editor after snippets, if snippets enabled
if (StackExchange.settings.snippets.snippetsEnabled) {
StackExchange.using("snippets", function() {
createEditor();
});
}
else {
createEditor();
}
});

function createEditor() {
StackExchange.prepareEditor({
heartbeatType: 'answer',
autoActivateHeartbeat: false,
convertImagesToLinks: true,
noModals: true,
showLowRepImageUploadWarning: true,
reputationToPostImages: 10,
bindNavPrevention: true,
postfix: "",
imageUploader: {
brandingHtml: "Powered by u003ca class="icon-imgur-white" href="https://imgur.com/"u003eu003c/au003e",
contentPolicyHtml: "User contributions licensed under u003ca href="https://creativecommons.org/licenses/by-sa/3.0/"u003ecc by-sa 3.0 with attribution requiredu003c/au003e u003ca href="https://stackoverflow.com/legal/content-policy"u003e(content policy)u003c/au003e",
allowUrls: true
},
onDemand: true,
discardSelector: ".discard-answer"
,immediatelyShowMarkdownHelp:true
});


}
});














draft saved

draft discarded


















StackExchange.ready(
function () {
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f53426768%2fcreate-share-library-with-wiringpi%23new-answer', 'question_page');
}
);

Post as a guest















Required, but never shown

























0






active

oldest

votes








0






active

oldest

votes









active

oldest

votes






active

oldest

votes
















draft saved

draft discarded




















































Thanks for contributing an answer to Stack Overflow!


  • Please be sure to answer the question. Provide details and share your research!

But avoid …



  • Asking for help, clarification, or responding to other answers.

  • Making statements based on opinion; back them up with references or personal experience.


To learn more, see our tips on writing great answers.




draft saved


draft discarded














StackExchange.ready(
function () {
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f53426768%2fcreate-share-library-with-wiringpi%23new-answer', 'question_page');
}
);

Post as a guest















Required, but never shown





















































Required, but never shown














Required, but never shown












Required, but never shown







Required, but never shown

































Required, but never shown














Required, but never shown












Required, but never shown







Required, but never shown







-

Popular posts from this blog

Biblatex bibliography style without URLs when DOI exists (in Overleaf with Zotero bibliography)

Image
2 2 I have a Zotero bibliography in Overleaf. I use biblatex . usepackage[backend=biber,citestyle=authoryear]{biblatex} addbibresource{zoteroALH.bib} Bibliography entries look like: @book{de_saint-gervais_uniformization_2016, title = {Uniformization of {Riemann} {Surfaces}}, isbn = {978-3-03719-145-3}, url = {https://www.ems-ph.org/books/book.php?proj_nr=198&srch=series%7Chem}, urldate = {2019-02-03}, author = {de Saint-Gervais, Paul Henri}, year = {2016}, doi = {10.4171/145} } In the bibliography down the paper the reference shows like this: There is the DOI, great, but also the URL which is unnecessary when the DOI is there. How can I remove the URL when the DOI is present? biblatex bibliographies overleaf zote
Read more

ComboBox Display Member on multiple fields

Image
2 I'm trying to set the .DisplayMember property of a ComboBox in C#, but I want to bind it to multiple columns in the .DataSouce . My SQL looks like this: SELECT PersNbr, PersFirstName, PersMiddleName, PersLastName FROM Pers WHERE PersNbr = :persNbr; I'm saving this query in a DataTable so each column selected has it's own column in the Datatable . I want to make the .DisplayMember a combination of PersFirstName + PersMiddleName + PersLastName so their full name appears like this: comboBox.DisplayMemeber = "PersFirstName" + "PersMiddleName" + "PersLastName" I know I can just to this on the query: SELECT PersNbr, (PersFirstName || PersMiddleName || PersLastName) PersName and then just do this: comboBox.DisplayMember = "PersName"; but I
Read more

Is it possible to collect Nectar points via Trainline?

Image
2 Since I am not eligible for any Railcard, the only available discount/bonus scheme is Nectar Card for me. GWR, SWR, LNER and Virgin Trains allow to collect Nectar points and I have already linked a card to my GWR account. A friend suggested me to use Trainline App, because it can search for bus tickets either. I had a look at the application, but could not see any option for Nectar. Is there a way to collect Nectar points when I buy tickets via Trainline? uk trains loyalty-programs trainline share | improve this question asked Dec 2 '18 at 15:50 ahmedus 3,224 5 19 49
Read more