Stream: wasm

Topic: AOT Exception handling for x86_64 linux platform

Fernando Ibáñez Alameda (May 25 2026 at 12:42):

Hi all,

I’m developing applications running on WAMR for x86_x64 PC/Linux platform, with the goal of executing the same binaries on an embedded platform (STM32) just by changing the WAMR platform port.

I experienced different behavior with AOT exception handling depending on the platform:

• On STM32, when an AOT app raises an exception, wasm_application_execute_main() returns and I can retrieve it with wasm_runtime_get_exception().
• On x86_64 PC/Linux, the runtime seems to hang and wasm_application_execute_main() never returns.

If I use interpreted WASM instead of AOT on Linux, exceptions are handled correctly.

Does WAMR fully support exception handling for AOT binaries on PC/Linux? Could this behaviour be due to configuration or platform-specific differences?

Any help would be greatly appreciated!
Thanks in advance,
Fernando

Notification Bot (May 26 2026 at 18:15):

This topic was moved to #wamr > AOT Exception handling for x86_64 linux platform by fitzgen (he/him).

Last updated: Jun 01 2026 at 09:49 UTC