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Disable loading of libLLVM at runtime #7499

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Merged
merged 1 commit into from
Oct 27, 2022
Merged

Disable loading of libLLVM at runtime #7499

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10 changes: 9 additions & 1 deletion src/monodroid/jni/monodroid-glue.cc
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Original file line number Diff line number Diff line change
Expand Up @@ -1843,12 +1843,19 @@ a nice and smart library installs a ton of signal handlers and don't chain at al

This is a hack to set llvm::DisablePrettyStackTrace to true and avoid this source of signal handlers.

As of Android 5.0 (API 21) the symbol no longer exists in libLLVM.so and stack pretty printing is an opt-in
instead of an opt-out feature. LLVM change which removed the symbol is at

https://github.com/llvm/llvm-project/commit/c10ca903243f97cbc8014f20c64f1318a57a2936

*/
void
MonodroidRuntime::disable_external_signal_handlers (void)
{
if (!androidSystem.is_mono_llvm_enabled ())
#if !defined (NET)
if (android_api_level >= 21) {
return;
}

void *llvm = androidSystem.load_dso ("libLLVM.so", JAVA_INTEROP_LIB_LOAD_GLOBALLY, TRUE);
if (llvm) {
Expand All @@ -1859,6 +1866,7 @@ MonodroidRuntime::disable_external_signal_handlers (void)
}
//MUST NOT dlclose to ensure we don't lose the hack
}
#endif // ndef NET
}

#if defined (NET)
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