RFR: 8356595: Convert -Xlog:cds to -Xlog:aot [v4]

[Johan Sjölen]

On Wed, 14 May 2025 01:07:36 GMT, Ioi Lam <iklam at openjdk.org> wrote:

>> This is an alternative (and opposite) approach to https://github.com/openjdk/jdk/pull/24895. We basically convert most `[cds]` logs to `[aot]` logs. However, for the few logs that might be needed by existing user scripts, we use macros like `aot_log_info`, `aot_log_debug` so that they can be selected/printed using the `[cds]` tag. 
>> 
>> We have a few hundred logs that start with `[cds]`. To aid reviewing, this PR will convert only part of them. I will create a second PR that coverts the rest of the logs.
>> 
>> Please see **aotLogging.hpp** for how the macros work.
>
> Ioi Lam has updated the pull request incrementally with one additional commit since the last revision:
> 
>   Removed PrintAOTLogsAsCDSLogs and improved comments

Hi,

Just one comment. I'm approving, the UL code looks good to me.

src/hotspot/share/cds/aotLogging.hpp line 82:

> 80: //
> 81: // [2] When using CDS archives
> 82: //     - These logs can be selected ONLY with -Xlog:cds. They are always printed with [cds] decoration

OK, so if I use `-Xlog:all`, what will they be selected as?

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Marked as reviewed by jsjolen (Reviewer).

PR Review: https://git.openjdk.org/jdk/pull/25136#pullrequestreview-2838902352
PR Review Comment: https://git.openjdk.org/jdk/pull/25136#discussion_r2088151655