Port to FreeBSD PowerPC 64-bit

FreeBSD on PowerPC 64-bit follows the ELF v1 ABI. This was enabled only on Linux so far. We enable ELF-ABIs for all PowerPC by default because most systems follow an ELF-ABI on PowerPC. Exceptions are AIX, for which we have code in place, and OS X, which is no longer supported on PowerPC.

Fixes #15916 (closed).

added 13 commits

• 42289e41...b565d418 - 6 commits from branch master
• 271e7b13 - RTS: Use ELF v1 convention on all powerpc64 systems
• 5efe5b4c - PPC NCG: Make calling convention more general
• 1e71b02e - PPC NCG: Make `stackHeaderSize` more general
• 68d66b3b - PPC NCG: GOT declaration for all 64-bit ELF systems
• 1c648cb1 - PPC NCG: Register definitions for all 64-bit systems
• 973db2ee - Fix tab and improve whitespace
• 1ca08f8a - PPC NCG: Rename constructors

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@trommler, out of curiosity, how are you testing PowerPC? Do you know of any way we could get access to hardware for CI?

Big-endian I test on my own hardware (two PowerMac G5) and for little-endian I have access to two eight core virtual machines (one POWER8 and one POWER9) at the Oregon State University Open Source Lab (OSUOSL) https://osuosl.org/. OSUOSL also offers CI-access for open source projects: https://osuosl.org/services/powerdev/request_powerci/.

Merged via !82 (merged).

closed

Indeed, I believe @davean been trying to get in touch with OSUOSL. Hopefully there will be news soon. I would love to have proper hardware CI for all of our supported platforms.

@bgamari !82 (merged) does not look like it incorporates this MR. Did you press the wrong button?

reopened

added 17 commits

• 1ca08f8a...9ea8dcea - 10 commits from branch master
• 74f94b5d - RTS: Use ELF v1 convention on all powerpc64 systems
• 1481d9c3 - PPC NCG: Make calling convention more general
• 36eec089 - PPC NCG: Make `stackHeaderSize` more general
• 7a5a46d6 - PPC NCG: GOT declaration for all 64-bit ELF systems
• 7f40fd87 - PPC NCG: Register definitions for all 64-bit systems
• e20b78b4 - Fix tab and improve whitespace
• 546b97a0 - PPC NCG: Rename constructors

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Reopened and rebased as it was not merged with !82 (merged).

Having CI for POWER would be awesome. @bgamari and @davean let me know if I can help with anything.

assigned to @bgamari

@bgamari I assign this to you. Perhaps you can include this in the next consolidated merge-queue.

Indeed, sorry for the mix-up last time.

added 1 deleted label

added 30 commits

• 546b97a0...69947d58 - 23 commits from branch master
• f1fe2fc5 - RTS: Use ELF v1 convention on all powerpc64 systems
• e05f6c1b - PPC NCG: Make calling convention more general
• 4370701c - PPC NCG: Make `stackHeaderSize` more general
• 499e3589 - PPC NCG: GOT declaration for all 64-bit ELF systems
• 27221f23 - PPC NCG: Register definitions for all 64-bit systems
• f79901b6 - Fix tab and improve whitespace
• b3616090 - PPC NCG: Rename constructors

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added 8 commits

• 83a22066 - 1 commit from branch master
• cfaa700a - RTS: Use ELF v1 convention on all powerpc64 systems
• 8d12a692 - PPC NCG: Make calling convention more general
• 753d27aa - PPC NCG: Make `stackHeaderSize` more general
• 8b5e50eb - PPC NCG: GOT declaration for all 64-bit ELF systems
• 415b192c - PPC NCG: Register definitions for all 64-bit systems
• 26bd5a27 - Fix tab and improve whitespace
• 9c7729d3 - PPC NCG: Rename constructors

Compare with previous version

mentioned in merge request !136 (merged)

Merged in !136 (merged).

closed