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  1. JDK
  2. JDK-8330242

RISC-V: Simplify and remove CORRECT_COMPILER_ATOMIC_SUPPORT in atomic_linux_riscv.hpp

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    • b19
    • riscv
    • linux

    Backports

      Description

        Previously, we fixed JDK-8326936 with a workaround for one GCC bug [1]. We define a new `CORRECT_COMPILER_ATOMIC_SUPPORT` macro when building with GCC >= 14. Now this bug has been fixed in gcc trunk and has been backported to GCC-13 branch. The `__atomic_compare_exchange` atomic operation will be usable for the next GCC-13.3 release. So we should relax the condition and require GCC > 13.2. This will also help remove `CORRECT_COMPILER_ATOMIC_SUPPORT` macro and reuse a single `FULL_COMPILER_ATOMIC_SUPPORT` macro.

        [1] https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114130

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            backported by

            Backport - A issue that is required to port a Bug or Feature into another product release. This issue type is generally associated with the main Bug/Feature to represent each individual release of the port. JDK-8330551 RISC-V: Simplify and remove CORRECT_COMPILER_ATOMIC_SUPPORT in atomic_linux_riscv.hpp

            • P4 - Minor loss of function, or other problem where easy workaround is present.
            • Resolved

            Backport - A issue that is required to port a Bug or Feature into another product release. This issue type is generally associated with the main Bug/Feature to represent each individual release of the port. JDK-8330637 RISC-V: Simplify and remove CORRECT_COMPILER_ATOMIC_SUPPORT in atomic_linux_riscv.hpp

            • P4 - Minor loss of function, or other problem where easy workaround is present.
            • Resolved

            Backport - A issue that is required to port a Bug or Feature into another product release. This issue type is generally associated with the main Bug/Feature to represent each individual release of the port. JDK-8330641 RISC-V: Simplify and remove CORRECT_COMPILER_ATOMIC_SUPPORT in atomic_linux_riscv.hpp

            • P4 - Minor loss of function, or other problem where easy workaround is present.
            • Resolved
            relates to

            Bug - A problem which impairs or prevents the functions of the product. JDK-8326936 RISC-V: Shenandoah GC crashes due to incorrect atomic memory operations

            • P4 - Minor loss of function, or other problem where easy workaround is present.
            • Resolved
            links to

            Commit Commit openjdk/jdk17u-dev/30a9a217

            Commit Commit openjdk/jdk21u-dev/f0f2e70f

            Commit Commit openjdk/jdk22u/2ae0188a

            Commit Commit openjdk/jdk/cd4c3aac

            Review Review openjdk/jdk17u-dev/2417

            Review Review openjdk/jdk21u-dev/507

            Review Review openjdk/jdk22u/146

            Review Review openjdk/jdk/18780

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                gcao Gui Cao
                gcao Gui Cao
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                  Created:
                  Updated:
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