ELF binary doesn't ship with build id, making it unusable with Linux perf

[caizixian]

Please provide a brief summary of the bug

sudo perf probe --verbose -x /usr/lib/jvm/temurin-21-jdk-amd64/lib/server/libjvm.so --add sdt_hotspot:gc__begin
probe-definition(0): sdt_hotspot:gc__begin
0 arguments
Failed to get build-id from /usr/lib/jvm/temurin-21-jdk-amd64/lib/server/libjvm.so.
Cache open error: -1
  Error: Failed to add events. Reason: No such file or directory (Code: -2)

Adding perf probe is necessary to use Linux perf record to capture SDT events.

Did you test with the latest update version?

• Yes

Please provide steps to reproduce where possible

No response

Expected Results

perf probe adds the SDT probes.

Actual Results

perf probe exits because build-id cannot be found in the ELF file

What Java Version are you using?

openjdk 21.0.5 2024-10-15 LTS OpenJDK Runtime Environment Temurin-21.0.5+11 (build 21.0.5+11-LTS) OpenJDK 64-Bit Server VM Temurin-21.0.5+11 (build 21.0.5+11-LTS, mixed mode, sharing)

What is your operating system and platform?

Ubuntu 22.04 LTS

How did you install Java?

apt

Did it work before?

Did you test with other Java versions?

Relevant log output

[karianna]

@caizixian Can you try with 21.0.8 and report back?

[caizixian]

I just updated my package via apt. It has the same issue.

$ /usr/lib/jvm/temurin-21-jdk-amd64/bin/java -version
openjdk version "21.0.8" 2025-07-15 LTS
OpenJDK Runtime Environment Temurin-21.0.8+9 (build 21.0.8+9-LTS)
OpenJDK 64-Bit Server VM Temurin-21.0.8+9 (build 21.0.8+9-LTS, mixed mode, sharing)

$ sudo perf buildid-cache --verbose --add /usr/lib/jvm/temurin-21-jdk-amd64/lib/server/libjvm.so
Couldn't read a build-id in /usr/lib/jvm/temurin-21-jdk-amd64/lib/server/libjvm.so
Couldn't add /usr/lib/jvm/temurin-21-jdk-amd64/lib/server/libjvm.so: No such file or directory

$ file /usr/lib/jvm/temurin-21-jdk-amd64/lib/server/libjvm.so
/usr/lib/jvm/temurin-21-jdk-amd64/lib/server/libjvm.so: ELF 64-bit LSB shared object, x86-64, version 1 (SYSV), dynamically linked, not stripped, too many notes (256)

[caizixian]

This doesn't seem to be an issue with the upstream. The JDK shipped by Ubuntu or the JDK I build from source (jdk/jdk21u) has build-id.

$ file /usr/lib/jvm/java-17-openjdk-amd64/lib/server/libjvm.so
/usr/lib/jvm/java-17-openjdk-amd64/lib/server/libjvm.so: ELF 64-bit LSB shared object, x86-64, version 1 (SYSV), dynamically linked, BuildID[sha1]=99a233e1c9c31ed4348f5b702336c351993fba5b, not stripped, too many notes (256)

[jerboaa]

#4091 might be related here.

[jerboaa]

This issue is indeed devkit and --build-id linker flag related. Using a devkit with --enable-linker-build-id fixes the problem. #4091 has more details.