RFR: 8363440: Upgrade AOT map file logging to display more assets and asset content

[María Arias de Reyna]

On Thu, 2 Oct 2025 08:26:54 GMT, María Arias de Reyna <duke at openjdk.org> wrote:

> Part of https://bugs.openjdk.org/browse/JDK-8363440
> 
> The AOT map file lists many objects without any kind of context of what they represent. For example, `MethodCounters` and `MethodData` do not show to what method they belong to. With this patch, now we can at least link the `MethodCounters` and `MethodData` to the `Method` they belong to.
> 
> Before:
> 
> $ cat aot.map | grep "@@ MethodCounters"
> [...]
> 0x0000000801e4c280: @@ MethodCounters    64
> 
> ``` bash
> $ cat aot.map | grep "@@ MethodData"
> [...]
> 0x0000000801e44448: @@ MethodData        584
> 
> 
> After:
> 
> $ cat aot.map | grep "@@ MethodCounters"
> [...]
> 0x0000000801f8b9a8: @@ MethodCounters    64 void jdk.internal.access.SharedSecrets.setJavaLangAccess(jdk.internal.access.JavaLangAccess)
> 0x0000000801f8be60: @@ MethodCounters    64 void java.lang.Object.notifyAll()
> 
> ``` bash
> $ cat aot.map | grep "@@ MethodData"
> [...]
> 0x0000000801f700e0: @@ MethodData        728 int java.lang.module.ModuleDescriptor.hashCode()
> 0x0000000801f81af0: @@ MethodData        688 java.lang.String java.lang.Class.cannotCastMsg(java.lang.Object)

I know, bot, but wanted a clean trigger of the jobs in my repository. And no one has reviewed anything yet.

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PR Comment: https://git.openjdk.org/jdk/pull/27603#issuecomment-3359929086