Android dlopen failed due to TLS_MODEL attribute

[natepaynefb]

I am trying to run my project on an Android device. It fails with output like this:

java.lang.UnsatisfiedLinkError: dlopen failed: TLS symbol "(null)" in dlopened "my_native_project.so" referenced from "my_native_project.so" using IE access model

The variable in question is the one with the TLS_MODEL macro in rpmalloc.c. If I remove the TLS_MODEL macro, then my project loads successfully and everything works as far as I can tell.

Note that I am not building rpmalloc directly. I am using the version of it that is included with the Tracy profiler. I was told that I should ask the maintainers of rpmalloc about it (wolfpld/tracy#779).

What is your recommendation? Is it important for that variable to use tls_model("initial-exec")? If so, can you recommend a workaround to make the Android dynamic linker happy? Thanks.

[mjansson]

You can just change the define of TLS_MODEL to nothing, i.e
#define TLS_MODEL

[MarijnS95]

@mjansson would you be able to land a change that approaches this (for Android) on top of an older tagged release?

[mjansson]

Merged #347

[MarijnS95]

@mjansson I see, thanks. Didn't expect that to be merged, it would have been great if the title and description were rewritten to actually describe the problem and chosen solution though 🤷

[mjansson]

I changed the actual commit to say Set TLS model on Android depending on target sdk

[MarijnS95]

Lovely, that should make it easier to find!

I didn't check if the logic to compare against NDK revision is sound, but perhaps this issue can now be closed?
EDIT: It probably isn't sound when the host clang/LLVM toolchain is used to cross-compile to Android: #347 (comment)