[Raspberry 2B] I can't load native libraries. #64

ghost · 2021-02-14T14:25:41Z

ghost
Feb 14, 2021

Hello,

I'm looking to use Pi4J 2.0-SNAPSHOT on a Raspberry 2B :

root@Ant:/opt# uname -a
Linux Ant 4.14.37-v7+ #1111 SMP Thu Apr 26 13:56:59 BST 2018 armv7l GNU/Linux

I can't load native libraries. In fact, I can't find them: neither in the jar files, nor in the dependencies.

I decided to recompile his libraries, but I couldn't do it for my machine: I have this error ar runtime :

java.lang.UnsatisfiedLinkError: /lib/armhf/libpi4j-pigpio.so: /lib/arm-linux-gnueabihf/libc.so.6: version `GLIBC_2.27' not found (required by /lib/armhf/libpigpio.so.1)

for information:

root@Ant:/opt# ldd --version
ldd (Debian GLIBC 2.19-18+deb8u10) 2.19

How to find and install these libraries on my old Pi 2B?

Thanks for your answers!

Regards,
Arnaud.

Answered by hackerjimbo

Feb 15, 2021

That looks like an astonishingly old version, can you try dpkg -l pigpio? I get: Desired=Unknown/Install/Remove/Purge/Hold | Status=Not/Inst/Conf-files/Unpacked/halF-conf/Half-inst/trig-aWait/Trig-pend |/ Err?=(none)/Reinst-required (Status,Err: uppercase=bad) ||/ Name Version Architecture Description +++-==============-============-============-=============================================== ii pigpio 1.71-0~rpt1 armhf Raspberry Pi GPIO control transitional package. So you should be on version 71. Regards, Jim.

View full answer

FDelporte · 2021-02-15T07:29:15Z

FDelporte
Feb 15, 2021
Maintainer

Hi Arnaud, can you tell me which java version you are using? I don't have a 2B available so can not try out myself. I see it's a arm7 so should be OK to run "default" JDK 11, but just to exclude we need to look into that direction.

1 reply

ghost Feb 15, 2021

Hi Frank,

I tested with an OpenJDK 14:

root@Ant:~ $ java --version
openjdk 14 2020-03-16
OpenJDK Runtime Environment (build 14+36)
OpenJDK Server VM (build 14+36, mixed mode)

then an 11:

root@Ant:~ $ java --version
openjdk 11.0.10 2021-01-19 LTS
OpenJDK Runtime Environment Zulu11.45+27-CA (build 11.0.10+9-LTS)
OpenJDK Client VM Zulu11.45+27-CA (build 11.0.10+9-LTS, mixed mode)

with the same results:

13:18:49 [main] ERROR c.p.l.p.u.NativeLibraryLoader:167 - **Unable to load [libpi4j-pigpio.so]** using path: [/lib/armhf/libpi4j-pigpio.so]
java.lang.UnsatisfiedLinkError: /tmp/libpi4j-pigpio16633900768987907578.so: libpigpio.so.1: Ne peut ouvrir le fichier d'objet partagé: Aucun fichier ou dossier de ce type
        at java.base/java.lang.ClassLoader$NativeLibrary.load0(Native Method)
        at java.base/java.lang.ClassLoader$NativeLibrary.load(ClassLoader.java:2442)
        at java.base/java.lang.ClassLoader$NativeLibrary.loadLibrary(ClassLoader.java:2498)
        at java.base/java.lang.ClassLoader.loadLibrary0(ClassLoader.java:2694)
        at java.base/java.lang.ClassLoader.loadLibrary(ClassLoader.java:2627)
        at java.base/java.lang.Runtime.load0(Runtime.java:768)
        at java.base/java.lang.System.load(System.java:1837)
        at com.pi4j.library.pigpio.util.NativeLibraryLoader.loadLibraryFromClasspath(NativeLibraryLoader.java:223)
        at com.pi4j.library.pigpio.util.NativeLibraryLoader.load(NativeLibraryLoader.java:164)
        at com.pi4j.library.pigpio.internal.PIGPIO.<clinit>(PIGPIO.java:76)

I'm trying to migrate from Pi4J version 1.2 to v2-snapshot. The v1.2 works perfectly on my Rasberry 2B (libraries are well found).

To install the V2, I have:

manually install WiringPi v2.60

root@Ant:~# gpio -v
gpio version: 2.60
Copyright (c) 2012-2018 Gordon Henderson

Using Pi4J through Maven:

	<dependencies>
		<dependency>
			<groupId>com.pi4j</groupId>
			<artifactId>pi4j-core</artifactId>
			<version>2.0-SNAPSHOT</version>
		</dependency>
		<dependency>
			<groupId>com.pi4j</groupId>
			<artifactId>pi4j-plugin-raspberrypi</artifactId>
			<version>2.0-SNAPSHOT</version>
			<scope>runtime</scope>
		</dependency>
		<dependency>
			<groupId>com.pi4j</groupId>
			<artifactId>pi4j-plugin-pigpio</artifactId>
			<version>2.0-SNAPSHOT</version>
			<scope>runtime</scope>
		</dependency>
		....

After unzipping the jars' files, I don't see the libraries (.so). Where are the files libpi4j-pigpio.so, libpigpiod_if2.so, libpigpiod_if.so and libpigpio.so?
Is there a way to compile them directly on the Rasberry? (I'm not familiar with Makefile and I didn't succeed).

Tx for your time !

Bests regards,
Arnaud.

hackerjimbo · 2021-02-15T12:59:52Z

hackerjimbo
Feb 15, 2021
Collaborator

I think we have the issue right there: pi4j-v2 /doesn't/ use WiringPi but pigpio. Can you apt-get install pigpio and see what happens? Regards, Jim.

…

On 15/02/2021 12:45, arhamel wrote: Hi Frank, I tested with an OpenJDK 14: ***@***.***:~ $ java --version openjdk 14 2020-03-16 OpenJDK Runtime Environment (build 14+36) OpenJDK Server VM (build 14+36, mixed mode) | then an 11: ***@***.***:~ $ java --version openjdk 11.0.10 2021-01-19 LTS OpenJDK Runtime Environment Zulu11.45+27-CA (build 11.0.10+9-LTS) OpenJDK Client VM Zulu11.45+27-CA (build 11.0.10+9-LTS, mixed mode) | with the same results: |13:18:49 [main] ERROR c.p.l.p.u.NativeLibraryLoader:167 - **Unable to load [libpi4j-pigpio.so]** using path: [/lib/armhf/libpi4j-pigpio.so] java.lang.UnsatisfiedLinkError: /tmp/libpi4j-pigpio16633900768987907578.so: libpigpio.so.1: Ne peut ouvrir le fichier d'objet partagé: Aucun fichier ou dossier de ce type at java.base/java.lang.ClassLoader$NativeLibrary.load0(Native Method) at java.base/java.lang.ClassLoader$NativeLibrary.load(ClassLoader.java:2442) at java.base/java.lang.ClassLoader$NativeLibrary.loadLibrary(ClassLoader.java:2498) at java.base/java.lang.ClassLoader.loadLibrary0(ClassLoader.java:2694) at java.base/java.lang.ClassLoader.loadLibrary(ClassLoader.java:2627) at java.base/java.lang.Runtime.load0(Runtime.java:768) at java.base/java.lang.System.load(System.java:1837) at com.pi4j.library.pigpio.util.NativeLibraryLoader.loadLibraryFromClasspath(NativeLibraryLoader.java:223) at com.pi4j.library.pigpio.util.NativeLibraryLoader.load(NativeLibraryLoader.java:164) at com.pi4j.library.pigpio.internal.PIGPIO.<clinit>(PIGPIO.java:76) | I'm trying to migrate from Pi4J version 1.2 to v2-snapshot. The v1.2 works perfectly on my Rasberry 2B (libraries are well found). To install the V2, I have: * manually install WiringPi v2.60 ***@***.***:~# gpio -v gpio version: 2.60 Copyright (c) 2012-2018 Gordon Henderson | * Using Pi4J through Maven: |<dependencies> <dependency> <groupId>com.pi4j</groupId> <artifactId>pi4j-core</artifactId> <version>2.0-SNAPSHOT</version> </dependency> <dependency> <groupId>com.pi4j</groupId> <artifactId>pi4j-plugin-raspberrypi</artifactId> <version>2.0-SNAPSHOT</version> <scope>runtime</scope> </dependency> <dependency> <groupId>com.pi4j</groupId> <artifactId>pi4j-plugin-pigpio</artifactId> <version>2.0-SNAPSHOT</version> <scope>runtime</scope> </dependency> .... | After unzipping the jars' files, I don't see the libraries (.so). Where are the files /libpi4j-pigpio.so, libpigpiod_if2.so, libpigpiod_if.so and libpigpio.so/? Is there a way to compile them directly on the Rasberry? (I'm not familiar with Makefile and I didn't succeed). Tx for your time ! Bests regards, Arnaud. — You are receiving this because you are subscribed to this thread. Reply to this email directly, view it on GitHub <#64 (reply in thread)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/ABWGJS3CSU4QYFNKBKYRLW3S7EJPRANCNFSM4XTIZ45Q>.

1 reply

ghost Feb 15, 2021

Hi,

root@Ant:~# apt-get install pigpio
Reading package lists... Done
Construction of the dependency tree
Reading status information... Done
pigpio is already the latest version available.
pigpio has been switched to "manually installed".
0 updated, 0 newly installed, 0 to remove and 0 not updated.

Do you want I uninstall my version to take the repository version? Actually, I have:

root@Ant:~# pigpiod -v
60

Regards,
Arnaud.

hackerjimbo · 2021-02-15T14:26:24Z

hackerjimbo
Feb 15, 2021
Collaborator

That looks like an astonishingly old version, can you try dpkg -l pigpio? I get: Desired=Unknown/Install/Remove/Purge/Hold | Status=Not/Inst/Conf-files/Unpacked/halF-conf/Half-inst/trig-aWait/Trig-pend |/ Err?=(none)/Reinst-required (Status,Err: uppercase=bad) ||/ Name Version Architecture Description +++-==============-============-============-=============================================== ii pigpio 1.71-0~rpt1 armhf Raspberry Pi GPIO control transitional package. So you should be on version 71. Regards, Jim.

…

On 15/02/2021 13:49, arhamel wrote: Hi, ***@***.***:~# apt-get install pigpio Reading package lists... Done Construction of the dependency tree Reading status information... Done pigpio is already the latest version available. pigpio has been switched to "manually installed". 0 updated, 0 newly installed, 0 to remove and 0 not updated. | Do you want I uninstall my version to take the repository version? Actually, I have: ***@***.***:~# pigpiod -v 60 | Regards, Arnaud. — You are receiving this because you commented. Reply to this email directly, view it on GitHub <#64 (reply in thread)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/ABWGJS7R5ANHPM45CF27Q53S7EQ7HANCNFSM4XTIZ45Q>.

3 replies

ghost Feb 15, 2021

Many thanks!
I upgraded to v78 and the problem is solved.

root@Ant:/opt/domotique/log# pigpiod -v
78

Have a nice day :)

Regards,
Arnaud.

FDelporte Feb 16, 2021
Maintainer

Nice so maybe this needs some more documentation in the v2-site...
Thanks @hackerjimbo for the support here!

FDelporte Feb 16, 2021
Maintainer

Pi4J/pi4j.github.io#2

hackerjimbo · 2021-02-16T08:27:20Z

hackerjimbo
Feb 16, 2021
Collaborator

I think the key statement should be “just use the system-provided version of the libraries and keep them up to date (unless you /really/ know what you're doing).” I've had this type of problem elsewhere and it's very hard to chase down with an unknown system underneath you. Jim.

…

On 16/02/2021 08:17, Frank Delporte wrote: Nice so maybe this needs some more documentation in the v2-site... Thanks @hackerjimbo <https://github.com/hackerjimbo> for the support here! — You are receiving this because you were mentioned. Reply to this email directly, view it on GitHub <#64 (reply in thread)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/ABWGJS4PNAIY3FWHHBQLSHDS7IS2RANCNFSM4XTIZ45Q>.

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[Raspberry 2B] I can't load native libraries. #64

ghost Feb 14, 2021

Replies: 4 comments · 5 replies

FDelporte Feb 15, 2021 Maintainer

ghost Feb 15, 2021

hackerjimbo Feb 15, 2021 Collaborator

ghost Feb 15, 2021

hackerjimbo Feb 15, 2021 Collaborator

ghost Feb 15, 2021

FDelporte Feb 16, 2021 Maintainer

FDelporte Feb 16, 2021 Maintainer

hackerjimbo Feb 16, 2021 Collaborator

ghost
Feb 14, 2021

Replies: 4 comments 5 replies

FDelporte
Feb 15, 2021
Maintainer

hackerjimbo
Feb 15, 2021
Collaborator

hackerjimbo
Feb 15, 2021
Collaborator

FDelporte Feb 16, 2021
Maintainer

FDelporte Feb 16, 2021
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hackerjimbo
Feb 16, 2021
Collaborator