8204267: Generate comments in -XX:+PrintInterpreter to link to source code #2957
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−18
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Hi all,
HotSpot's interpreter is dynamically generated (by C++ sources such as src/hotspot/cpu/x86/templateTable_x86.cpp).
The command
java -XX:+PrintInterpreter
can be used to print a disassembly of the HotSpot interpreter. However, the output has very little comment, and it's very hard to associate the assembler instructions with the C++ code that generates them.To make it easier to understand the -XX:+PrintInterpreter, we should generate comments to link the instructions back to the C++ source code that generates them. This is doable because much of the interpreter code generation is done via a macro "__". We can redefine this macro to generate comments.
The file
src/hotspot/share/compiler/disassembler.cpp
has different context cause this PR can't backport cleanly, all other files are backport cleanly.Only change the behavior of
PrintInterpreter
, risk is low.Additional testing:
Thanks.
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