Add -Zindirect-branch-cs-prefix
#140740
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Add -Zindirect-branch-cs-prefix
#140740
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@rustbot label F-target_modifiers A-rust-for-linux |
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The error is related to the base PR -- I think this one should be clean (modulo the marked |
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Darksonn
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src/doc/unstable-book/src/compiler-flags/indirect-branch-cs-prefix.md
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☔ The latest upstream changes (presumably #142443) made this pull request unmergeable. Please resolve the merge conflicts. |
This is intended to be used for Linux kernel RETPOLINE builds. Signed-off-by: Miguel Ojeda <[email protected]>
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rustbot has assigned @compiler-errors. Use |
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-Zindirect-branch-cs-prefix on top of -Zretpoline*-Zindirect-branch-cs-prefix
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Cc: @azhogin @Darksonn
This goes on top of #135927, i.e. please skip the first commit here. Please feel free to inherit it there.
In fact, I am not sure if there is any use case for the flag without
-Zretpoline*. GCC and Clang allow it, though.There is a
FIXMEfor twoignores in the test that I took from another test I did in the past -- they may be needed or not here since I didn't run the full CI. Either way, it is not critical.Tracking issue: #116852.
MCP: rust-lang/compiler-team#868.