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Re: [Qemu-devel] [PATCH 5/7] trace: Add event "guest_bbl_after"
From: |
Lluís Vilanova |
Subject: |
Re: [Qemu-devel] [PATCH 5/7] trace: Add event "guest_bbl_after" |
Date: |
Thu, 14 Sep 2017 18:20:56 +0300 |
User-agent: |
Gnus/5.13 (Gnus v5.13) Emacs/25.2 (gnu/linux) |
Richard Henderson writes:
> On 09/10/2017 09:31 AM, Lluís Vilanova wrote:
>> +void translator__gen_goto_tb(TCGContext *ctx)
>> +{
>> + if (ctx->disas.in_guest_code &&
>> + (TRACE_GUEST_BBL_AFTER_ENABLED)) {
>> + if (ctx->disas.inline_label == NULL) {
>> + ctx->disas.inline_label = gen_new_inline_label();
>> + }
>> + gen_set_inline_point(ctx->disas.inline_label);
>> + /* disable next exit_tb */
>> + ctx->disas.seen_goto_tb = true;
>> + }
>> +}
>> +
>> +void translator__gen_exit_tb(TCGContext *ctx)
>> +{
>> + if (ctx->disas.in_guest_code && !ctx->disas.seen_goto_tb &&
>> + (TRACE_GUEST_BBL_AFTER_ENABLED)) {
>> + if (ctx->disas.inline_label == NULL) {
>> + ctx->disas.inline_label = gen_new_inline_label();
>> + }
>> + gen_set_inline_point(ctx->disas.inline_label);
>> + /* enable next exit_tb */
>> + ctx->disas.seen_goto_tb = false;
>> + }
>> +}
> I don't understand why you wouldn't just modify tcg_gen_goto_tb and
> tcg_gen_exit_tb instead.
I prefer to keep all generic translation-related tracing on a single file, where
it is easier to reason about.
Cheers,
Lluis
[Qemu-devel] [PATCH 5/7] trace: Add event "guest_bbl_after", Lluís Vilanova, 2017/09/10
[Qemu-devel] [PATCH 6/7] trace: Add event "guest_inst_after", Lluís Vilanova, 2017/09/10
[Qemu-devel] [PATCH 7/7] trace: Add event "guest_inst_info_after", Lluís Vilanova, 2017/09/10
Re: [Qemu-devel] [PATCH 0/7] trace: Add guest code events, no-reply, 2017/09/10