create share library with WiringPI
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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
asked Nov 22 '18 at 8:34
HoonesHoones
203
add a comment |
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
asked Nov 22 '18 at 8:34
HoonesHoones
203
1
-lWiringPi? You may need a-Largument to tell the linker where to look.
– Botje
Nov 22 '18 at 15:55
add a comment |
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
asked Nov 22 '18 at 8:34
HoonesHoones
203
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
asked Nov 22 '18 at 8:34
HoonesHoones
203
asked Nov 22 '18 at 8:34
HoonesHoones
203
asked Nov 22 '18 at 8:34
HoonesHoones
203
asked Nov 22 '18 at 8:34
HoonesHoones
203
asked Nov 22 '18 at 8:34
HoonesHoones
203
203
1
-lWiringPi? You may need a-Largument to tell the linker where to look.
– Botje
Nov 22 '18 at 15:55
add a comment |
1
-lWiringPi? You may need a-Largument 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
add a comment |
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1
-lWiringPi? You may need a-Largument to tell the linker where to look.– Botje
Nov 22 '18 at 15:55