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LibJS/JIT: Provide source location information for JIT code

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This works by walking a backtrace until the currently executing
native executable is found, and then mapping the native address
to its bytecode instruction.
This commit is contained in:
Simon Wanner 2023-10-30 22:06:27 +01:00 • committed by Andreas Kling
parent 112eadc863
commit fb7b4b9c59
8 changed files with 59 additions and 6 deletions
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8
Userland/Libraries/LibJS/Bytecode/Interpreter.cpp
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@ -16,6 +16,7 @@
#include <LibJS/Bytecode/Label.h>
#include <LibJS/Bytecode/Op.h>
#include <LibJS/JIT/Compiler.h>
#include <LibJS/JIT/NativeExecutable.h>
#include <LibJS/Runtime/AbstractOperations.h>
#include <LibJS/Runtime/Array.h>
#include <LibJS/Runtime/BigInt.h>
@ -55,6 +56,13 @@ void Interpreter::visit_edges(Cell::Visitor& visitor)
}
}
Optional<InstructionStreamIterator const&> Interpreter::instruction_stream_iterator() const
{
if (m_current_executable && m_current_executable->native_executable())
return m_current_executable->native_executable()->instruction_stream_iterator(*m_current_executable);
return m_pc;
}
// 16.1.6 ScriptEvaluation ( scriptRecord ), https://tc39.es/ecma262/#sec-runtime-semantics-scriptevaluation
ThrowCompletionOr<Value> Interpreter::run(Script& script_record, JS::GCPtr<Environment> lexical_environment_override)
{