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Error on building Opcache JIT for Windows ARM64 #16839

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Error on building Opcache JIT for Windows ARM64#16839
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cmb69
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BugCategory: Build SystemOS: WindowsStatus: Verified

Description

@macintoshplus
macintoshplus
opened on Nov 17, 2024

Description

When I try to build the version 8.0.4RC4 on Windows 11 with ARM64 processors, I have this error.

The build work if I add the —disable-opcache-jit.

Resulted in this output:

zend_jit.obj : error LNK2019: unresolved external symbol __readgsqword referenced in function zend_jit_setup
C:\Users\builder\AppData\Local\Temp\994b80f3-d8b1-427d-9ba3-a7bb4df75943\config\vs17\arm64\obj\Release_TS\php_opcache.dll : fatal error LNK1120: 1 unresolved externals

PHP Version

PHP 8.4.0RC4

Operating System

Windows 11 ARM64

Activity

  1. macintoshplus
    added
    Bug
    Status: Needs Triage
    on Nov 17, 2024

  2. ndossche commented on Nov 17, 2024

    @ndossche
    ndossche
    on Nov 17, 2024
    Member

    Right, this makes sense because the gs register is x86(-64) specific. In fact, I don't think that the JIT works for Windows+ARM64, so it should probably be disabled by the configure script.

  3. ndossche
    added
    Category: Build System
    OS: Windows
    Status: Verified
    and removed
    Status: Needs Triage
    on Nov 17, 2024

  4. cmb69 commented on Nov 17, 2024

    @cmb69
    cmb69
    on Nov 17, 2024
    Member

    I agree that we should --disable-opcache-jit for Windows ARM64 builds (for now).

    And when cross-compiling, if you don't use /WX (same as -Werror), you hit:

            C:\php-sdk\phpdev\vs17\arm64\php-src\arm64\Release_TS\\gen_ir_fold_hash.exe < ext\opcache\jit\ir\ir_fold.h > ext\opcache\jit\ir\ir_fold_hash.h
Die Version von C:\php-sdk\phpdev\vs17\arm64\php-src\arm64\Release_TS\gen_ir_fold_hash.exe ist mit der ausgeführten Windows-Version nicht kompatibel. Überprüfen Sie die Systeminformationen des Computers, und wenden Sie sich anschließend an den Herausgeber der Software.

    (cf. #15610 (comment))

  5. cmb69
    self-assigned this
    on Nov 17, 2024
  6. cmb69
    changed the title [-]Error on building PHP 8.4.0RC4 on Opcache JIT for Windows ARM64[/-] [+]Error on building Opcache JIT for Windows ARM64[/+] on Nov 17, 2024
  7. cmb69
    linked a pull request that will close this issueFix GH-16839: Error on building Opcache JIT for Windows ARM64 #16841on Nov 17, 2024

  8. cmb69 commented on Nov 17, 2024

    @cmb69
    cmb69
    on Nov 17, 2024
    Member

    Right, this makes sense because the gs register is x86(-64) specific. In fact, I don't think that the JIT works for Windows+ARM64, […]

    There is aarch64 support for POSIX systems, but I believe this is still different to what would be needed for Windows ARM64. Plus, cross-compilation may pose more difficult issues than with an autotools build-chain. And from what I can tell, we do not yet support native compilation on Windows ARM64 (although Visual Studio 17.4 is supposed to support that).

  9. ndossche commented on Nov 17, 2024

    @ndossche
    ndossche
    on Nov 17, 2024
    Member

    but I believe this is still different to what would be needed for Windows ARM64

    Definitely, the ABI and how TLS (for ZTS) is handled is different.

  10. cmb69
    closed this as completedin e44b762on Nov 18, 2024
  11. cmb69
    added 2 commits that reference this issue on Nov 18, 2024

    Merge branch 'PHP-8.4'

    ff5b42b

    Fix GH-16839: Error on building Opcache JIT for Windows ARM64

    e44b762

  12. macintoshplus commented on Nov 19, 2024

    @macintoshplus
    macintoshplus
    on Nov 19, 2024
    Author

    Thanks you @cmb69

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