Crosscompile dynlibs.pas error
lazarus / 43-Android

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viroroi · 2011-11-09 08:04

I install in Ubuntu 11.10 Lazarus 0.9.31 with FPC 2.5.1 crosscompile
for Android.

When I compile a project with dynlibs.pas if I link libpthread.so,
libc.so and libdl.so to "arm-linux-gnueabi" forder:
sudo ln -sf /usr/arm-linux-gnueabi/lib/libpthread-2.13.so
libpthread.so
sudo ln -sf /usr/arm-linux-gnueabi/lib/libc-2.13.so libc.so
sudo ln -sf /usr/arm-linux-gnueabi/lib/libdl-2.13.so libdl.so
These are the compiler errors:
/usr/lib/fpc/2.7.1/units/arm-linux/rtl/cprt0.o: In function
`_haltproc_eabi':
(.text+0x88): undefined reference to `_fini'
/usr/lib/fpc/2.7.1/units/arm-linux/rtl/cprt0.o: In function
`_haltproc_eabi':
(.text+0x90): undefined reference to `_init'
androidlcltest.lpr(23) Error: Error while linking
androidlcltest.lpr(23) Fatal: There were 1 errors compiling module,
stopping

If I link libc.so and libdl.so to ndk android forder (platforms
android 5) errors are similar.

I have read another thread about a similar problem but I can not found
the solution.

How can I solve this problem?

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Rustam Asmandiarov · 2011-11-17 10:17

That would not produce branches think there will be fine!
So the problem! I am creating a clean design and installed in the
options OS (-T) Linux, CPU (-P) Arm, LCLWidgetType-Android, name of
the executable file project1.so. Compilation and run the project
going.
Now add in the module uses dynlibs and compile, an error occurs:

/usr/local/bin/arm-linux-ld: warning: link.res contains output
sections; did you forget -T?
/usr/local/bin/arm-linux-ld: skipping incompatible /usr/lib/crti.o
when searching for /usr/lib/crti.o
/usr/local/bin/arm-linux-ld: cannot find /usr/lib/crti.o
project1.lpr(22) Error: Error while linking
project1.lpr(22) Fatal: There were 1 errors compiling module, stopping

Moreover, substitution usr / lib / crti.o and usr / lib / crtn.o
desired result does not give, because there were new bugs!
OS Ubuntu 10.10-10.04

Что бы не плодить веток думаю здесь будет нормально!
Итак суть проблемы! Я создаю чистый проект и установливаю в опциях
OS(-T)Linux, CPU(-P)Arm, LCLWidgetType -Android, Имя исполняемого
файла project1.so. Запускаю компиляцию и проект собирается.
Теперь добавляю в uses модуль dynlibs и компилирую, появляется ошибка
:
----
Причем подмена usr/lib/crti.o и usr/lib/crtn.o желаемого результата не
давала, так как появлялись новые ошибки!

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felipemdc · 2011-11-17 12:06

where the source code of a minimal project which reproduces the
problem?

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Rustam Asmandiarov · 2011-11-17 12:17

Here

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felipemdc · 2011-11-17 12:22

Ah, that's an LCL application ... I am rewriting the LCL Android
widgetset. I don' t recommend trying to use it until I finish the
rewrite.

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Rustam Asmandiarov · 2011-11-17 12:31

Thank you very much! I'll wait!

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viroroi · 2011-12-13 13:39

Hi, my project is not a LCL application. I want to make a application
service with sockets. And when I add dynlibs to the project, I can not
compile it.

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zeljko · 2011-12-28 15:40

same problem here (but compiling for meego (nokia n9 arm7)) -
fpc-2.4.5.
Pure fpc app works on device, but as soon as I include dynlibs or
cthreads or clocale or cwstring
linking is impossible (eg. simple qtlcl app).

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felipemdc · 2011-12-28 17:58

dynlibs is plain broken for Android, but I think that maybe it works
in fpc trunk for standard arm-linux (never tried, so can't say for
sure).

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marcov · 2011-12-28 20:58

Quote from: felipemdc on December 28, 2011, 06:58:50 pmdynlibs is
plain broken for Android, but I think that maybe it works in fpc trunk
for standard arm-linux (never tried, so can't say for sure).

Afaik it works fine.

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Rustam Asmandiarov · 2012-01-10 13:36

Hello! I found a couple of useful links mb they will help solve the
problem!
http://mpigulski.blogspot.com/2010/09/debugging-dlopen-
unsatisfiedlinkerror.html
http://groups.google.com/group/android-
ndk/browse_thread/thread/50646941724fe66e/9e0ea0053a38fdee
http://stackoverflow.com/questions/4723681/unable-to-
dlopenlibsomething-so-cannot-load-library-link-image1995-failed