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Don't eliminate frame pointers on thumb targets #69248

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Feb 19, 2020
Merged

Don't eliminate frame pointers on thumb targets #69248

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c9b87ac
Don't eliminate frame pointers on thumb targets
jonas-schievink Feb 17, 2020
27cfb2b
Fix typo
jonas-schievink Feb 17, 2020
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3 changes: 3 additions & 0 deletions src/librustc_target/spec/thumb_base.rs
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Expand Up @@ -50,6 +50,9 @@ pub fn opts() -> TargetOptions {
// until we figure a way to add the pretty printers without requiring a volatile load cf.
// rust-lang/rust#44993.
emit_debug_gdb_scripts: false,
// LLVM is eager to trash the link register when calling `nounwind` functions, which
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// breaks debugging. Preserve LR by default to prevent that from happening.
eliminate_frame_pointer: false,
..Default::default()
}
}