add loongarch64 arch support#4
Conversation
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Thank you for your contribution! I wonder why the jump entries are designed to use absolute address instead of relative address? Does Loongarch Linux not support ASLR? |
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Loongarch Linux supports ASLR. When I use relative addresses in Rust's inline assembly, I find that the values in jump entry are all 0, so I use absolute addresses instead. |
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It's strange. Maybe an LLVM bug? Anyway, using absolute addresses here is not suitable for applications with ASLR enabled, since those addresses may be relocated somewhere else at run time. |
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Maybe I can ask someone at loongarch. |
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The cross-rs tool currently uses the gnu toolchain for linking, but the version of binutils is low and does not support the relocation of R_LARCH_64_PCREL, so error occurs in calculating relative addresses. I can change the code to calculate relative addresses, but that might not pass the cross test. |
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Is there any tracking issue for this problem at Rust main repository or cross-rs repo or anywhere else? I could track it and merge the PR after corresponding issue is solved. |
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Maybe this cross-rs/cross#973 |
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Thanks for your contribution to LoongArch. This is the tracking issue for this: cross-rs/cross#1538 |
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It seems that the cross-rs has updated the binutils toolchain. Would you update your code for relative addresses? :) |
…lear cache for linux OS
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Thank you :) |
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