Closed mattjlewis closed 2 years ago
gnodet
commented
3 years ago The libraries are most probably the same. Could you try to put the native library https://github.com/fusesource/jansi/blob/master/src/main/resources/org/fusesource/jansi/internal/native/Linux/armv7/libjansi.so into one of the tried location /usr/java/packages/lib/arm:/usr/lib/arm-linux-gnueabihf/jni:/lib/arm-linux-gnueabihf:/usr/lib/arm-linux-gnueabihf:/usr/lib/jni:/lib:/usr/lib ?
mattjlewis
commented
3 years ago No, they aren't the same unfortunately - jansi works perfectly fine on ARM v7 Pis. I've encountered this issue when compiling my own native library for any diozero library. I cross-compile in an Ubuntu VM, spent quite a while getting the various flags correct to work with a broad range of SBCs - arm v6, v7 and aarch64.
mattjlewis
commented
3 years ago I use this for v6 & 7:
PATH=/home/vagrant/rpi-tools/arm-bcm2708/gcc-linaro-arm-linux-gnueabihf-raspbian/bin:$PATH
make clean && make CROSS_COMPILE=arm-linux-gnueabihf- ARCH=armv6 CC_CFLAGS="-mfpu=vfp -mfloat-abi=hard"and this for aarch64:
PATH=/home/vagrant/rpi-tools/arm-bcm2708/gcc-linaro-arm-linux-gnueabihf-raspbian-x64/bin:$PATH
make clean && make CROSS_COMPILE=arm-linux-gnueabihf- ARCH=armv8-a CC_CFLAGS="-mfpu=vfp -mfloat-abi=hard"
c@mattjlewis I've tried using OS_ARCH=armv6 or using CC_CFLAGS="-mfpu=vfp -mfloat-abi=hard in the Makefile but the resulting library is exactly the same (binary comparison). I suppose that's because they don't include any kind of floating point operation maybe ?
Jansi already has different library support for armv7 / arm64 and has no specific support for armv6 atm, but if the libraries are the same, it may just be a matter of loading the armv7 library ?
mattjlewis
commented
3 years ago Ah, I see, you resolve armv6 but you don't have an "armv6" native library folder, just "armv7". I will try put the native library on the lib path. Would it be possible for you to translate armv6 and armv7 to load the same library?
gnodet
commented
3 years ago Yes, if the library actually works for you, I can translate armv6 to armv7 when loading the library.
mattjlewis
commented
3 years ago Unfortunately I get this error:
#
# A fatal error has been detected by the Java Runtime Environment:
#
# SIGILL (0x4) at pc=0xab1b0ed0, pid=680, tid=0xb5143460
#
# JRE version: OpenJDK Runtime Environment (8.0_212-b01) (build 1.8.0_212-8u212-b01-1+rpi1-b01)
# Java VM: OpenJDK Client VM (25.212-b01 mixed mode linux-aarch32 )
# Problematic frame:
# C [libjansi.so+0xed0]
#
# Failed to write core dump. Core dumps have been disabled. To enable core dumping, try "ulimit -c unlimited" before starting Java again
#
# An error report file with more information is saved as:
# /home/pi/diozero/diozero-distribution-1.1.5/hs_err_pid680.log
#
# If you would like to submit a bug report, please visit:
# http://bugreport.java.com/bugreport/crash.jsp
# The crash happened outside the Java Virtual Machine in native code.
# See problematic frame for where to report the bug.
#Snippet from the error report file:
Stack: [0xb50f4000,0xb5144000], sp=0xb51413d0, free space=308k
Native frames: (J=compiled Java code, j=interpreted, Vv=VM code, C=native code)
C [libjansi.so+0xed0]
C [libc.so.6+0x115508] _dl_catch_exception+0x7c
V [libjvm.so+0x33bc28] JVM_LoadLibrary+0xb4
C [libjava.so+0xaba0] Java_java_lang_ClassLoader_00024NativeLibrary_load+0x13c
j java.lang.ClassLoader$NativeLibrary.load(Ljava/lang/String;Z)V+0
j java.lang.ClassLoader.loadLibrary0(Ljava/lang/Class;Ljava/io/File;)Z+328
j java.lang.ClassLoader.loadLibrary(Ljava/lang/Class;Ljava/lang/String;Z)V+48
j java.lang.Runtime.load0(Ljava/lang/Class;Ljava/lang/String;)V+57
j java.lang.System.load(Ljava/lang/String;)V+7
j org.fusesource.jansi.internal.JansiLoader.loadNativeLibrary(Ljava/io/File;)Z+13
j org.fusesource.jansi.internal.JansiLoader.loadJansiNativeLibrary()V+321
j org.fusesource.jansi.internal.JansiLoader.initialize()Z+9
j org.fusesource.jansi.internal.CLibrary.<clinit>()V+0
v ~StubRoutines::call_stub
V [libjvm.so+0x2e54b8]
V [libjvm.so+0x2e4c14]
V [libjvm.so+0x2aa1f4]
V [libjvm.so+0x2aa6c4]
V [libjvm.so+0x2aa970]
V [libjvm.so+0x3abf40]
V [libjvm.so+0x3ac1c4]
V [libjvm.so+0x2d6e8c]
j org.fusesource.jansi.AnsiConsole.ansiStream(Z)Lorg/fusesource/jansi/AnsiPrintStream;+49
j org.fusesource.jansi.AnsiConsole.initStreams()V+7
j org.fusesource.jansi.AnsiConsole.systemInstall()V+15
j com.diozero.sampleapps.SystemInformation.main([Ljava/lang/String;)V+0I've compiled it locally on my Pi Zero (armv6) and can confirm that it works. I used the attached Makefile and compiled with:
make ARCH=armv6Makefile:
RM = rm -f
CC = $(CROSS_COMPILE)gcc
AR = $(CROSS_COMPILE)ar
# To check CFLAGS: arm-linux-gnueabihf-gcc -Q --help=target
# Alternative for 64 bit: aarch64-linux-gnu-gcc
#CFLAGS = -Wall -fPIC -O3 -march=armv6+fp -mfpu=vfp -mfloat-abi=hard
CFLAGS = -Wall -fPIC -O3 -march=$(ARCH) $(CC_CFLAGS)
# BeagleBone Black:
#CFLAGS = -Wall -fPIC -O3 -march=armv7-a+fp -mfpu=vfpv3-d16 -mfloat-abi=hard -mhard-float -mabi=aapcs-linux
INCLUDES = -I$(JAVA_HOME)/include -I$(JAVA_HOME)/include/linux -I$(JAVA_HOME)/include/darwin
LFLAGS = -L/home/vagrant/libs/$(CROSS_COMPILE)lib
SO_FILE_EXT = so
LIBS = -Wl,-Bstatic -li2c -Wl,-Bdynamic
SRCS = jansi.c \
jansi_isatty.c \
jansi_structs.c \
jansi_ttyname.c
OBJS = $(SRCS:.c=.o)
LIB_TARGET = libjansi.$(SO_FILE_EXT)
all: $(LIB_TARGET)
$(LIB_TARGET): $(OBJS)
@echo [LINK] $(LIB_TARGET)
@$(CC) -shared -o $(LIB_TARGET) $(OBJS) $(LFLAGS) $(LIBS)
$(MAIN): $(OBJS)
@echo [LINK] $(MAIN)
$(CC) -o $(MAIN) $(OBJS) $(LFLAGS) $(LIBS)
.c.o:
@echo [COMPILE] $(CFLAGS) $<
@$(CC) $(CFLAGS) $(INCLUDES) -c $< -o $@
clean:
$(RM) $(OBJS) $(LIB_TARGET) *~
depend: $(SRCS)
makedepend $(INCLUDES) $^Do you think you could provide a PR that would modify the current makefile to add an armv6 native target ?
Le mar. 16 mars 2021 à 11:44, Matthew Lewis @.***> a écrit :
I've compiled it locally on my Pi Zero (armv6) and can confirm that it works. I used the attached Makefile and compiled with:
make ARCH=armv6
Makefile:
RM = rm -f CC = $(CROSS_COMPILE)gcc AR = $(CROSS_COMPILE)ar
To check CFLAGS: arm-linux-gnueabihf-gcc -Q --help=target
Alternative for 64 bit: aarch64-linux-gnu-gcc
CFLAGS = -Wall -fPIC -O3 -march=armv6+fp -mfpu=vfp -mfloat-abi=hard
CFLAGS = -Wall -fPIC -O3 -march=$(ARCH) $(CC_CFLAGS)
BeagleBone Black:
CFLAGS = -Wall -fPIC -O3 -march=armv7-a+fp -mfpu=vfpv3-d16 -mfloat-abi=hard -mhard-float -mabi=aapcs-linux
INCLUDES = -I$(JAVA_HOME)/include -I$(JAVA_HOME)/include/linux -I$(JAVA_HOME)/include/darwin LFLAGS = -L/home/vagrant/libs/$(CROSS_COMPILE)lib SO_FILE_EXT = so
LIBS = -Wl,-Bstatic -li2c -Wl,-Bdynamic
SRCS = jansi.c \ jansi_isatty.c \ jansi_structs.c \ jansi_ttyname.c
OBJS = $(SRCS:.c=.o)
LIB_TARGET = libjansi.$(SO_FILE_EXT)
all: $(LIB_TARGET)
$(LIB_TARGET): $(OBJS) @echo [LINK] $(LIB_TARGET) @$(CC) -shared -o $(LIB_TARGET) $(OBJS) $(LFLAGS) $(LIBS)
$(MAIN): $(OBJS) @echo [LINK] $(MAIN) $(CC) -o $(MAIN) $(OBJS) $(LFLAGS) $(LIBS)
.c.o: @echo [COMPILE] $(CFLAGS) $< @$(CC) $(CFLAGS) $(INCLUDES) -c $< -o $@
clean: $(RM) $(OBJS) $(LIB_TARGET) *~
depend: $(SRCS) makedepend $(INCLUDES) $^
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mattjlewis
commented
3 years ago It seems that multiarch/crossbuild doesn't support armv6 - https://raspberrypi.stackexchange.com/questions/98142/is-there-a-way-to-cross-compile-for-armv6-using-gcc-7 Attempting to build with -march=armv6 gives this error:
make linux-armv6 master
docker run -it --rm -v $PWD:/workdir -e CROSS_TRIPLE=arm-linux-gnueabihf multiarch/crossbuild make clean-native native OS_NAME=Linux OS_ARCH=armv6
rm -rf target/native-Linux-armv6
running: gcc -Itarget/native-Linux-armv6 -I/include -Isrc/main/lib/inc_linux -Os -mfloat-abi=hard -mfpu=vfp -fPIC -fvisibility=hidden -march=armv6 -c src/main/native/jansi.c -o target/native-Linux-armv6/jansi.o
gcc -Itarget/native-Linux-armv6 -I/include -Isrc/main/lib/inc_linux -Os -mfloat-abi=hard -mfpu=vfp -fPIC -fvisibility=hidden -march=armv6 -c src/main/native/jansi.c -o target/native-Linux-armv6/jansi.o
In file included from /usr/include/endian.h:60:0,
from /usr/include/arm-linux-gnueabihf/bits/waitstatus.h:64,
from /usr/include/stdlib.h:42,
from src/main/native/jansi.h:32,
from src/main/native/jansi.c:16:
/usr/include/arm-linux-gnueabihf/bits/byteswap.h: In function '__bswap_32':
/usr/include/arm-linux-gnueabihf/bits/byteswap.h:45:1: sorry, unimplemented: Thumb-1 hard-float VFP ABI
{
^
Makefile:17: recipe for target 'target/native-Linux-armv6/jansi.o' failed
make: *** [target/native-Linux-armv6/jansi.o] Error 1
make: *** [linux-armv6] Error 2@mattjlewis I've pushed a PR #221, could you have a look as I can't really test it ?
I get this error on Raspberry Pi Zero (armv6):
Would it be possible to compile the native library for armv6?