[MC] set OpenBSD's ELFOSABI by default #98158
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Ericson2314
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Note to self: #97122 (comment) applies to this PR, since I split it. |
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@llvm/pr-subscribers-mc Author: John Ericson (Ericson2314) ChangesThis matches what is done for FreeBSD. OpenBSD has a few special program header types, and other such ELF extensions. Setting the ELFOSABI like so will allow LLD to support them without needlessly impacting non-OpenBSD ELFs. Leveraged by #97122 Full diff: https://github.com/llvm/llvm-project/pull/98158.diff 3 Files Affected:
diff --git a/llvm/include/llvm/MC/MCELFObjectWriter.h b/llvm/include/llvm/MC/MCELFObjectWriter.h
index d7c223cdcc07f..12237094ad86a 100644
--- a/llvm/include/llvm/MC/MCELFObjectWriter.h
+++ b/llvm/include/llvm/MC/MCELFObjectWriter.h
@@ -78,6 +78,8 @@ class MCELFObjectTargetWriter : public MCObjectTargetWriter {
return ELF::ELFOSABI_FREEBSD;
case Triple::Solaris:
return ELF::ELFOSABI_SOLARIS;
+ case Triple::OpenBSD:
+ return ELF::ELFOSABI_OPENBSD;
default:
return ELF::ELFOSABI_NONE;
}
diff --git a/llvm/test/MC/ELF/osabi-freebsd.s b/llvm/test/MC/ELF/osabi-freebsd.s
new file mode 100644
index 0000000000000..0dbef293772e9
--- /dev/null
+++ b/llvm/test/MC/ELF/osabi-freebsd.s
@@ -0,0 +1,2 @@
+# RUN: llvm-mc -filetype obj -triple amd64-freebsd %s | llvm-readobj -hS - | FileCheck %s
+# CHECK: OS/ABI: FreeBSD
diff --git a/llvm/test/MC/ELF/osabi-openbsd.s b/llvm/test/MC/ELF/osabi-openbsd.s
new file mode 100644
index 0000000000000..f501dfa7bb126
--- /dev/null
+++ b/llvm/test/MC/ELF/osabi-openbsd.s
@@ -0,0 +1,2 @@
+# RUN: llvm-mc -filetype obj -triple amd64-openbsd %s | llvm-readobj -hS - | FileCheck %s
+# CHECK: OS/ABI: OpenBSD
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MaskRay
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Jul 10, 2024
llvm/test/MC/ELF/osabi-freebsd.s
Outdated
| @@ -0,0 +1,2 @@ | |||
| # RUN: llvm-mc -filetype obj -triple amd64-freebsd %s | llvm-readobj -hS - | FileCheck %s | |||
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I added osabi.s to unify FreeBSD/Linux/Solaris testing. Consider adding OpenBSD tests there instead of adding a new file.
MaskRay
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Jul 10, 2024
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This matches what is done for FreeBSD. OpenBSD has a few special program header types, and other such ELF extensions. Setting the ELFOSABI like so will allow LLD to support them without needlessly impacting non-OpenBSD ELFs. Testing strategy matches 06cecdc.
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Thanks @MaskRay! Did each of those things. |
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LLVM Buildbot has detected a new failure on builder Full details are available at: https://lab.llvm.org/buildbot/#/builders/153/builds/2651 Here is the relevant piece of the build log for the reference: |
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LLVM Buildbot has detected a new failure on builder Full details are available at: https://lab.llvm.org/buildbot/#/builders/16/builds/1575 Here is the relevant piece of the build log for the reference: |
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LLVM Buildbot has detected a new failure on builder Full details are available at: https://lab.llvm.org/buildbot/#/builders/60/builds/2230 Here is the relevant piece of the build log for the reference: |
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The failure is legit, unless there is a pending fix we should revert. |
joker-eph
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This reverts commit b64c1de.
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Reverts #98158 bot is broken.
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Sorry about that. So the failure broke |
Ericson2314
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#98553 is the next attempt. |
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This matches what is done for FreeBSD. OpenBSD has a few special program header types, and other such ELF extensions. Setting the ELFOSABI like so will allow LLD to support them without needlessly impacting non-OpenBSD ELFs. Testing strategy matches 06cecdc. Take two of #98158 / b64c1de, which was reverted in #98494 / c026135. Preexisting test is fixed now.
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LLVM Buildbot has detected a new failure on builder Full details are available at: https://lab.llvm.org/buildbot/#/builders/33/builds/580 Here is the relevant piece of the build log for the reference: |
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This matches what is done for FreeBSD. OpenBSD has a few special program header types, and other such ELF extensions. Setting the ELFOSABI like so will allow LLD to support them without needlessly impacting non-OpenBSD ELFs. Testing strategy matches 06cecdc.
aaryanshukla
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Reverts llvm#98158 bot is broken.
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This matches what is done for FreeBSD. OpenBSD has a few special program header types, and other such ELF extensions. Setting the ELFOSABI like so will allow LLD to support them without needlessly impacting non-OpenBSD ELFs. Testing strategy matches 06cecdc. Take two of llvm#98158 / b64c1de, which was reverted in llvm#98494 / c026135. Preexisting test is fixed now.
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This matches what is done for FreeBSD.
OpenBSD has a few special program header types, and other such ELF extensions. Setting the ELFOSABI like so will allow LLD to support them without needlessly impacting non-OpenBSD ELFs.
Testing strategy matches 06cecdc.
Leveraged by #97122