8257913: Add more known library locations to simplify Linux cross-compilation

[shipilev]

Current cross-compilation configurations require adding the whole lot of configure options to make it find the dependencies: freetype and X11 libs are the only problematic dependencies. We should be able to specify just the --with-sysroot, and get everything else autodetected.

After this patch, doing sh ./configure --openjdk-target=powerpc64le-linux-gnu --with-sysroot=/chroots/ppc64el, where chroot is debootstrap-ed chroot as per our build docs, is enough to get everything configured. See the GH Actions definition to see what options are not needed anymore.

Some explanations:

• *-gnuabi64 is needed for mips64el
• *-gnueabihf is needed for armhf
• $OPENJDK_TARGET_CPU_AUTOCONF-linux-gnu is needed for powerpc*, because OpenJDK build rewrites VAR_CPU to ppc, leading to mismatch.

Additional testing:

• Configure with target x86_64-linux-gnu
• Configure with cross-target i686-linux-gnu
• Configure with cross-target alpha-linux-gnu
• Configure with cross-target aarch64-linux-gnu
• Configure with cross-target arm-linux-gnueabihf
• Configure with cross-target arm-linux-gnueabi
• Configure with cross-target mipsel-linux-gnu
• Configure with cross-target mips64el-linux-gnuabi64
• Configure with cross-target powerpc-linux-gnu
• Configure with cross-target powerpc64-linux-gnu
• Configure with cross-target powerpc64le-linux-gnu
• Configure with cross-target m68k-linux-gnu
• Configure with cross-target sh4-linux-gnu

---

Progress

• Change must not contain extraneous whitespace
• Commit message must refer to an issue
• Change must be properly reviewed

Issue

• JDK-8257913: Add more known library locations to simplify Linux cross-compilation

Reviewers

• Erik Joelsson (@erikj79 - Reviewer)

Download

$ git fetch https://git.openjdk.java.net/jdk pull/2833/head:pull/2833
$ git checkout pull/2833

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[openjdk]

@shipilev The following labels will be automatically applied to this pull request:

• 2d
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[shipilev]

/label remove 2d

[openjdk]

@shipilev
The 2d label was successfully removed.

[mlbridge]

Webrevs

• 02: Full - Incremental (5b64487)
• 01: Full - Incremental (1ccf6aa)
• 00: Full (652710e)

[erikj79]

Looks good now and definitely a nice change to find these libs automatically.

[openjdk]

@shipilev This change now passes all automated pre-integration checks.

ℹ️ This project also has non-automated pre-integration requirements. Please see the file CONTRIBUTING.md for details.

After integration, the commit message for the final commit will be:

8257913: Add more known library locations to simplify Linux cross-compilation

Reviewed-by: erikj

You can use pull request commands such as /summary, /contributor and /issue to adjust it as needed.

At the time when this comment was updated there had been 19 new commits pushed to the master branch:

• e1cad97: 8262862: Harden tests sun/security/x509/URICertStore/ExtensionsWithLDAP.java and krb5/canonicalize/Test.java
• 2c0507e: 8261812: C2 compilation fails with assert(!had_error) failed: bad dominance
• 9755782: 8157682: @inheritdoc doesn't work with @exception
• 8c13d26: 8263050: move HtmlDocletWriter.verticalSeparator to IndexWriter
• 8d3de4b: 8262844: (fs) FileStore.supportsFileAttributeView might return false negative in case of ext3
• 75fb7cc: 8259228: Zero: rewrite (put|get)field from if-else chains to switches
• 9730266: 8262973: Verify ParCompactionManager instance in PCAdjustPointerClosure
• d91550e: 8262998: Vector API intrinsincs should not modify IR when bailing out
• 80182f9: 8260925: HttpsURLConnection does not work with other JSSE provider.
• dbef0ec: 6323374: (coll) Optimize Collections.unmodifiable* and synchronized*
• ... and 9 more: https://git.openjdk.java.net/jdk/compare/a6427c85eeb06fe080864bcad1d44447150d10a6...master

As there are no conflicts, your changes will automatically be rebased on top of these commits when integrating. If you prefer to avoid this automatic rebasing, please check the documentation for the /integrate command for further details.

➡️ To integrate this PR with the above commit message to the master branch, type /integrate in a new comment.

[shipilev]

/integrate

[openjdk]

@shipilev Since your change was applied there have been 29 commits pushed to the master branch:

• 22a3117: 8263137: Typos in sun.security.ssl.RenegoInfoExtension
• 18fc350: 8259886: Improve SSL session cache performance and scalability
• 3844ce4: 8261247: some compiler/whitebox/ tests fail w/ DeoptimizeALot
• f2d0152: 8263043: Add test to verify order of tag output
• 7182985: 8263104: fix warnings for empty paragraphs
• 5eb2091: 8261689: javax/swing/JComponent/7154030/bug7154030.java still fails with "Exception: Failed to hide opaque button"
• 75a5be8: 8263054: [testbug] SharedArchiveConsistency.java reuses jsa files
• 2afbd5d: 8250804: Can't set the application icon image for Unity WM on Linux.
• fa43f92: 8261845: File permissions of packages built by jpackage
• 23ee60d: 8261008: Optimize Xor
• ... and 19 more: https://git.openjdk.java.net/jdk/compare/a6427c85eeb06fe080864bcad1d44447150d10a6...master

Your commit was automatically rebased without conflicts.

Pushed as commit 61cff4d.

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