Merge upstream tag vm-25.0.1 for October 2025 CPU release

[jerboaa]

Merging upstream tag here:
https://github.com/oracle/graal/tree/vm-25.0.1

This new update will at least need JDK 25.0.1+8 to build (in GA config, which matches the OpenJDK 25 ga tag).

[zakkak]

LGTM

Either this or #907 should be OK to merge.

[jerboaa]

Thanks. I'd like to run a final test with a local 25.0.1+8 GA build.

[jerboaa]

Tested a local build with:

./bin/java --version
openjdk 25.0.1 2025-10-21 LTS
OpenJDK Runtime Environment (build 25.0.1+8-LTS)
OpenJDK 64-Bit Server VM (build 25.0.1+8-LTS, mixed mode, sharing)

Which seems to build fine. Passes the JVMCI version check:

[...]
Finished generating 'libnative-image-agent' in 24.0s.
DEBUG [OperatingSystem] Execute [/disk/graal/upstream-sources/graalvm/mandrel-build/lib/svm/bin/native-image, --macro:native-image-diagnostics-agent-library] in /disk/graal/upstream-sources/graalvm with environment variables []
========================================================================================================================
GraalVM Native Image: Generating 'libnative-image-diagnostics-agent.so' (shared library)...
========================================================================================================================
[1/8] Initializing...                                                                                    (2.5s @ 0.26GB)
 Java version: 25.0.1+8-LTS, vendor version: Mandrel-25.0.1.0-Final
 Graal compiler: optimization level: 2, target machine: compatibility
 C compiler: gcc (redhat, x86_64, 15.2.1)
 Garbage collector: Serial GC (max heap size: 80% of RAM)
 3 user-specific feature(s):
 - com.oracle.svm.diagnosticsagent.NativeImageDiagnosticsAgent$RegistrationFeature
 - com.oracle.svm.driver.APIOptionFeature
 - com.oracle.svm.thirdparty.gson.GsonFeature
------------------------------------------------------------------------------------------------------------------------
 6 experimental option(s) unlocked:
 - '-H:Name' (alternative API option(s): -o libnative-image-diagnostics-agent; origin(s): command line)
 - '-H:+VerifyRuntimeCompilationFrameStates' (origin(s): macro option 'native-image-diagnostics-agent-library@file:///disk/graal/upstream-sources/graalvm/mandrel-build/lib/svm/macros/native-image-diagnostics-agent-library/@user')
 - '-H:+EnforceMaxRuntimeCompileMethods' (origin(s): macro option 'native-image-diagnostics-agent-library@file:///disk/graal/upstream-sources/graalvm/mandrel-build/lib/svm/macros/native-image-diagnostics-agent-library/@user')
 - '-H:Path': Use the '-o' option instead. (origin(s): command line)
 - '-H:+GuaranteeSubstrateTypesLinked' (origin(s): macro option 'native-image-diagnostics-agent-library@file:///disk/graal/upstream-sources/graalvm/mandrel-build/lib/svm/macros/native-image-diagnostics-agent-library/@user')
 - '-H:+AssertInitializationSpecifiedForAllClasses' (origin(s): macro option 'native-image-diagnostics-agent-library@file:///disk/graal/upstream-sources/graalvm/mandrel-build/lib/svm/macros/native-image-diagnostics-agent-library/@user')
------------------------------------------------------------------------------------------------------------------------
Build resources:
 - 28.45GB of memory (42.6% of system memory, using available memory)
 - 22 thread(s) (100.0% of 22 available processor(s), determined at start)
[2/8] Performing analysis...  [******]                                                                   (4.1s @ 0.41GB)
    3,327 types,   3,980 fields, and  15,493 methods found reachable
    1,066 types,      36 fields, and     421 methods registered for reflection
       58 types,      59 fields, and      52 methods registered for JNI access
        0 downcalls and 0 upcalls registered for foreign access
        4 native libraries: dl, pthread, rt, z
[3/8] Building universe...                                                                               (1.0s @ 0.40GB)
[4/8] Parsing methods...      [*]                                                                        (0.6s @ 0.44GB)
[5/8] Inlining methods...     [****]                                                                     (0.4s @ 0.46GB)
[6/8] Compiling methods...    [**]                                                                       (4.5s @ 0.56GB)
[7/8] Laying out methods...   [*]                                                                        (1.0s @ 0.64GB)
[8/8] Creating image...       [**]                                                                       (2.6s @ 0.48GB)
   5.47MB (21.70%) for code area:     8,900 compilation units
   7.67MB (30.42%) for image heap:   90,719 objects and 55 resources
   9.94MB (39.43%) for debug info generated in 0.6s
  12.07MB (47.88%) for other data
  25.20MB in total image size, 14.03MB in total file size
------------------------------------------------------------------------------------------------------------------------
Top 10 origins of code area:                                Top 10 object types in image heap:
   3.71MB java.base                                            1.48MB byte[] for code metadata
   1.17MB svm.jar (Native Image)                               1.23MB byte[] for java.lang.String
 110.19kB java.logging                                       849.98kB java.lang.String
  90.71kB org.graalvm.nativeimage.base                       638.78kB com.oracle.svm.core.hub.DynamicHubCompanion
  48.90kB jdk.proxy2                                         460.12kB byte[] for general heap data
  38.97kB jdk.proxy1                                         431.83kB java.lang.Class
  37.98kB org.graalvm.nativeimage.configure                  319.87kB java.util.HashMap$Node
  28.97kB org.graalvm.nativeimage.agent.diagnostics          311.69kB heap alignment
  27.65kB jdk.internal.vm.ci                                 256.63kB java.lang.Object[]
  25.33kB jdk.graal.compiler                                 181.07kB java.util.HashMap$Node[]
  47.38kB for 7 more packages                                  1.51MB for 948 more object types
------------------------------------------------------------------------------------------------------------------------
Recommendations:
 FUTR: Use '--future-defaults=all' to prepare for future releases.
 HEAP: Set max heap for improved and more predictable memory usage.
------------------------------------------------------------------------------------------------------------------------
                       0.9s (5.2% of total time) in 131 GCs | Peak RSS: 1.58GB | CPU load: 14.52
------------------------------------------------------------------------------------------------------------------------
Build artifacts:
 /disk/graal/upstream-sources/graalvm/mandrel-build/lib/graal_isolate.h (c_header)
 /disk/graal/upstream-sources/graalvm/mandrel-build/lib/graal_isolate_dynamic.h (c_header)
 /disk/graal/upstream-sources/graalvm/mandrel-build/lib/libnative-image-diagnostics-agent.h (c_header)
 /disk/graal/upstream-sources/graalvm/mandrel-build/lib/libnative-image-diagnostics-agent.so (shared_library)
 /disk/graal/upstream-sources/graalvm/mandrel-build/lib/libnative-image-diagnostics-agent.so.debug (debug_info)
 /disk/graal/upstream-sources/graalvm/mandrel-build/lib/libnative-image-diagnostics-agent_dynamic.h (c_header)
 /disk/graal/upstream-sources/graalvm/mandrel-build/lib/sources (debug_info)
========================================================================================================================
Finished generating 'libnative-image-diagnostics-agent' in 17.2s.
INFO [build] Congratulations you successfully built Mandrel 25.0.1.0-Final based on Java 25.0.1+8-LTS
INFO [build] You can find your newly built native-image enabled JDK under /disk/graal/upstream-sources/graalvm/mandrel-build

./mandrel-build/bin/native-image --version
native-image 25.0.1 2025-10-21
OpenJDK Runtime Environment Mandrel-25.0.1.0-Final (build 25.0.1+8-LTS)
OpenJDK 64-Bit Server VM Mandrel-25.0.1.0-Final (build 25.0.1+8-LTS, mixed mode)