Look at the existing flags FLAG_print_opt_code and FLAG_print_bytecode,
their implementations should help you figure out how to do this.
On Fri, Jun 2, 2017 at 8:07 AM, Yuan Pinghai <pinghaiy...@gmail.com> wrote:
> I want to dump each piece of dynamically generated code. Meanwhile, if its
> corresponding bytecode is available, I also dump the bytecode and record
> the starting line number of the script code (i.e. recording the script name
> and the line number). For this purpose, i inserted code snippets in
> functions which would invoke "factory->NewCode". The following code is what
> i inserted into "CodeGenerator::GenerateCode()". However, my code can
> only successfully dump jit'ed code, but cannot dump bytecodes and record
> the script information. How can I solve this problem? Thanks!
>
> Bye the way, i am working on Version 6.0.99, the latest commit is
> 71c1795aea7573672dd264568357c0f49afc7321.
>
> --- a/src/compiler/code-generator.cc
> +++ b/src/compiler/code-generator.cc
> @@ -256,7 +256,34 @@ Handle<Code> CodeGenerator::GenerateCode() {
> if (info->ShouldEnsureSpaceForLazyDeopt()) {
> Deoptimizer::EnsureRelocSpaceForLazyDeoptimization(result);
> }
> -
> + //dump_jit_code(code, info);
> +
> + byte* nvstart = code->instruction_start();
> + //code->instruction_size();
> + int nvlen = code->body_size();
> +
> + int type = 0;
> + if (code->is_crankshafted())
> + type += (1 << 0);
> + if (code->is_turbofanned())
> + type += (1 << 1);
> +
> + printf("%p, %i, %i \n", nvstart, nvlen, type);
> +
> + std::unique_ptr<char[]> debug_name = info->GetDebugName();
> + OFStream os(stdout);
> + os << debug_name.get()<< std::endl;
> +
> + if (info->has_bytecode_array()){
> + Handle<BytecodeArray> bytecodes = info->bytecode_array();
> + bytecodes->Print(os);
> + }
> +
> + Handle<Script> jsscript = info->GetScript();
> + std::unique_ptr<char[]> jsscript_name jsscript->name();
> + ByteArray ba = code->source_position_table();
> + script->GetLineNumber(ba[0]);
> +
> +
> return result;
> }
>
> --
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