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cmd/link: using -fuzz with test that links with cgo on darwin causes linker failure [1.22 backport] #67945

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gopherbot opened this issue Jun 12, 2024 · 3 comments
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cmd/link: using -fuzz with test that links with cgo on darwin causes linker failure [1.22 backport] #67945

gopherbot opened this issue Jun 12, 2024 · 3 comments
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CherryPickApproved Used during the release process for point releases compiler/runtime Issues related to the Go compiler and/or runtime.
Milestone
Go1.22.5

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@gopherbot
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@cherrymui requested issue #65169 to be considered for backport to the next 1.22 minor release.

@gopherbot please backport this to previous releases. This causes build failure when using fuzzing with cgo. (There is a workaround, by specifying the old Apple linker, but that is not great.)
@gopherbot gopherbot added the CherryPickCandidate Used during the release process for point releases label Jun 12, 2024
@gopherbot gopherbot mentioned this issue Jun 12, 2024
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@gopherbot gopherbot added the compiler/runtime Issues related to the Go compiler and/or runtime. label Jun 12, 2024
@gopherbot gopherbot added this to the Go1.22.5 milestone Jun 12, 2024
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(Emoji vote if this was helpful or unhelpful; more detailed feedback welcome in this discussion.)

@gabyhelp gabyhelp mentioned this issue Jun 12, 2024
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@prattmic prattmic added the CherryPickApproved Used during the release process for point releases label Jun 12, 2024
@gopherbot gopherbot removed the CherryPickCandidate Used during the release process for point releases label Jun 12, 2024
@gopherbot
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Change https://go.dev/cl/592478 mentions this issue: [release-branch.go1.22] cmd/link: put runtime.end in the last section of data segment

gopherbot pushed a commit that referenced this issue Jun 24, 2024
@cherrymui @joedian
[release-branch.go1.22] cmd/link: put runtime.end in the last section…
4c97e88 
… of data segment

Currently the runtime.end symbol is put into the noptrbss section,
which is usually the last section, except that when fuzzing is
enabled, the last section is actually .go.fuzzcntrs. The
runtime.end symbol has the value pointing to the end of the data
segment, so if it is not in the last section, the value will not
actually be in the range of the section. This causes an assertion
failure in the new Apple linker. This CL fixes this by putting it
in the last section.

Updates #65169.
Fixes #67945.

Change-Id: I5c991c46a0483a96e5f6e0255a3b444953676026
Reviewed-on: https://go-review.googlesource.com/c/go/+/592095
Reviewed-by: Than McIntosh <[email protected]>
LUCI-TryBot-Result: Go LUCI <[email protected]>
(cherry picked from commit b589478)
Reviewed-on: https://go-review.googlesource.com/c/go/+/592478
@gopherbot
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Closed by merging 4c97e88 to release-branch.go1.22.

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