[jdk8u-dev] RFR: 8056039: Hotspot does not compile with clang 3.4 on Linux

[Paul Hohensee]

On Mon, 22 Dec 2025 14:43:52 GMT, Antonio Vieiro <avieiro at openjdk.org> wrote:

> Almost clean backport of [JDK-8056039](https://bugs.openjdk.org/browse/JDK-8056039) that removes `local_vsnprintf` from the codebase, making it easier to build with `clang`.
> 
> This will make it easier to backport [JDK-8369226](https://bugs.openjdk.org/browse/JDK-8369226) to restore MacOS/GHA builds, which are now failing.
> 
> Backport is not clean because the changes in `vm/utilities/globalDefinitions_gcc.hpp` are already in place since [this commit](https://github.com/openjdk/jdk8u-dev/commit/6ca492afe7c59b014c6ce0628eb88d7da34020b5#diff-5fb49411838cbaba246fe37dea9532cebb18f81ba3e40d2db8749f6a9ac099e9R274) for JFR.
> 
> Passes tier1 tests on Linux but for usual suspeccts.
> 
> Windows and MacOS GHA builds fail, but are unrelated.

Marked as reviewed by phh (Reviewer).

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PR Review: https://git.openjdk.org/jdk8u-dev/pull/736#pullrequestreview-3613933305