Libunwind update + toolchain verification #228
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AdrianCX
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Pagten
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Apr 24, 2020
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| // According to entry.S in rust-lang 'desc - toolchain version number, 32-bit LE' | ||
| let version : u32 = ((desc[0] as u32) << 0) + ((desc[1] as u32) << 8) + ((desc[2] as u32) << 16) + ((desc[3] as u32) << 24); |
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You could write this as let version = u32::from_le_bytes(desc.try_into().unwrap());. The unwrap is justified by the check in line 200.
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Absolutely, definitely use that function instead of manually bitshifting
Goirad
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Apr 24, 2020
| if let (Some(EH_FRM_HDR_BASE), Some(EH_FRM_HDR_SIZE)) = (syms.EH_FRM_HDR_BASE, syms.EH_FRM_HDR_SIZE) { | ||
| check_size!(EH_FRM_HDR_BASE == 8); | ||
| check_size!(EH_FRM_HDR_SIZE == 8); | ||
| } |
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Minor thing, but I believe it is standard practice to put the else on the same line as the closing bracket
Goirad
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Apr 24, 2020
| check_size!(EH_FRM_HDR_LEN == 8); | ||
| } | ||
| else { | ||
| bail!("Missing EH Frame header symbols, application must either have (EH_FRM_HDR_BASE/EH_FRM_HDR_SIZE) or (EH_FRM_OFFSET, EH_FRM_LEN, EH_FRM_HDR_OFFSET, EH_FRM_HDR_LEN"); |
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I don't like that this message isn't more specific about what is missing, but I can't think of an elegant way of adding that specificity
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I tried to improve on it, if you have other suggestions let me know
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bors r=pagten |
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Changes are needed to: