Shared libraries cannot locate symbol "__register_atfork", Android API 21-22-23
lion0508 opened this issue · comments
Hello,
When im trying to use .so on Android 5.1, i received this error:
java.lang.UnsatisfiedLinkError: dlopen failed: cannot locate symbol "__register_atfork" referenced by "/data/app/io.legere.pdfiumandroidkt-1/lib/arm64/libpdfium_v2.so"
Similar issue i have, when im trying to use .so on Android 6, i received this error:
java.lang.UnsatisfiedLinkError: dlopen failed: cannot locate symbol "__write_chk" referenced by "/data/app/io.legere.pdfiumandroidkt-1/lib/arm64/libpdfium_v2.so"
Hi,
I ran llvm -D to get all libpdfium.so's symbols and found the following lines:
U __register_atfork@LIBC
U __write_chk@LIBC_N
It seems that it should find those symbols in the libc.
Could it be a problem with the libc version, as in #82?
Best regards,
Benoit
Hello
Thanks, for your response, as i understand correctly, for quick fix, i should use this way for that:
Is it correct understanding from my side?
I have one more small question, how i can include another *.so libs together with libpdfium.so:
You can try to lower the requirements, but I'm pretty sure the PDFium and Chromium teams already configured it to support the oldest possible Android version.
If you need to support an old version of Android, you'll probably have to use an old version of PDFium.
The libpdfium.so provided here should already be bundled with all the required dependencies.
Chromium dropped support for Android API 23 a year ago:
https://groups.google.com/a/chromium.org/g/chromium-dev/c/z_RvoPoIeoM
@bblanchon I added some changes for patches:
- Added changes for "shared_library" patches/android/build.patch
2. Created new patch and added changes regarding "default_min_sdk_version"
Now it works for Android 23!
For Android 21-22 i received error "UnsatisfiedLinkError: dlopen failed: cannot locate symbol "FPDFBookmark_GetFirstChild" referenced"
Do you have any ideas, regarding Android 21-22? Or i should use older version of pdfium which is supported minimum Android 21-22, what do you think?
Whats the latest version of pdfium which supported Android 21?
You should address these questions to the official PDFium mailing list.
Hello, @bblanchon Could you provide please link, of your latest version of so libs:
- Which supported Android 23 API?
- Which supported Android 21-22 API?
- Which supported Android 24 API?
Thanks
According to the conversation mentioned above, the commit that dropped the support for Android API level 23 is this one:
https://chromium-review.googlesource.com/c/chromium/src/+/4000311
It was rolled out to PDFium with this commit:
https://pdfium.googlesource.com/pdfium/+/e57c44ecfebda5bab1fd1d6aebbfdd3e56f5b97f
The first build that included this change is 110.0.5459.0.
The last build before this change is 110.0.5445.0
@bblanchon Thanks for your response and links!
Last question, could you provide please link, of your latest version of so libs:
- Which supported Android 21 API?
There was a lot of back-and-forth between 21 and 23:
- https://chromium-review.googlesource.com/c/chromium/src/+/3216753
- https://chromium-review.googlesource.com/c/chromium/src/+/3226482
- https://chromium-review.googlesource.com/c/chromium/src/+/3227533
- https://chromium-review.googlesource.com/c/chromium/src/+/3227727
- https://chromium-review.googlesource.com/c/chromium/src/+/3228368
- https://chromium-review.googlesource.com/c/chromium/src/+/3231675
- https://chromium-review.googlesource.com/c/chromium/src/+/3232601
The commit that definitely set the minimum version to 23 is
https://chromium-review.googlesource.com/c/chromium/src/+/3232601
It was rolled to pdfium in this commit
https://pdfium.googlesource.com/pdfium/+/b40183476292b2c6a92dc8dfbb4e02d570849e87
This commit is in branch chromium/4743.
The first build to include this change is 98.0.4750.0
The last build before this change is 98.0.4736.0.
However, since there has been a lot of back-and-forth between 21 and 23, it's possible that some of the builds before 98.0.4750.0 already require version 23.
Hello, @bblanchon
I have tried this build so libs 8.0.4736.0, but i received this error:
java.lang.UnsatisfiedLinkError: dlopen failed: library "libabsl.cr.so" not found
No implementation found for long com.shockwave.pdfium.PdfiumCore.nativeOpenDocument(int, java.lang.String) (tried Java_com_shockwave_pdfium_PdfiumCore_nativeOpenDocument and Java_com_shockwave_pdfium_PdfiumCore_nativeOpenDocument__ILjava_lang_String_2)
2024-03-12 16:24:04.364 2587-2587 PDFView com.github.barteksc.sample E load pdf error
java.lang.UnsatisfiedLinkError: No implementation found for long com.shockwave.pdfium.PdfiumCore.nativeOpenDocument(int, java.lang.String) (tried Java_com_shockwave_pdfium_PdfiumCore_nativeOpenDocument and Java_com_shockwave_pdfium_PdfiumCore_nativeOpenDocument__ILjava_lang_String_2)
at com.shockwave.pdfium.PdfiumCore.nativeOpenDocument(Native Method)
at com.shockwave.pdfium.PdfiumCore.newDocument(PdfiumCore.java:132)
at com.github.barteksc.pdfviewer.source.AssetSource.createDocument(AssetSource.java:41)
at com.github.barteksc.pdfviewer.DecodingAsyncTask.doInBackground(DecodingAsyncTask.java:53)
at com.github.barteksc.pdfviewer.DecodingAsyncTask.doInBackground(DecodingAsyncTask.java:27)
at android.os.AsyncTask$2.call(AsyncTask.java:295)
at java.util.concurrent.FutureTask.run(FutureTask.java:237)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1113)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:588)
at java.lang.Thread.run(Thread.java:818)
Could you check please, what can be wrong?
@bblanchon @lion1988dev Thank you for raising this issue and you time to investigate this. I have dig little bit more to understand the root problem. Here is my finding #161, please take a look.
@varahash Thanks for your investigation, let me check this solution, I will try to create patch with these changes and will rebuild so files. Will let you know after checking