On Tue, 31 Mar 2026 15:06:18 GMT, Matthias Baesken <[email protected]> wrote:

> When building a JVM with -ffunction-sections in the C/C++ compile flags, the 
> gtest os_linux.decoder_get_source_info_valid_vm fails and delivers another 
> result
> 
> 
> [ RUN ] os_linux.decoder_get_source_info_valid_vm
> test/hotspot/gtest/runtime/test_os_linux.cpp:404: Failure
> Expected equality of these values:
>   buf
>     Which is: "test_os_linux.cpp"
>   "jniCheck.hpp"
> 
> [ FAILED ] os_linux.decoder_get_source_info_valid_vm (20 ms)
> 
> 
> So for this compilation mode, it is probably better to avoid the check for 
> this specific header.

The addr2line tool also shows jniCheck.hpp when called with the address of 
ReportJNIFatalError 


addr2line -e /images/test/hotspot/gtest/server/libjvm.so  0x000000000064fb20
make/hotspot/src/hotspot/share/prims/jniCheck.hpp:36


So also with '-ffunction-sections' the standard tools like gdb/addr2line seem 
to work as expected .

-------------

PR Comment: https://git.openjdk.org/jdk/pull/30516#issuecomment-4206157496

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