seehearfeel added inline comments.
================ Comment at: lldb/source/Plugins/Process/Utility/RegisterInfos_loongarch64.h:21 +#define GPR_OFFSET(idx) ((idx)*8 + 0) +#define FPR_OFFSET(idx) ((idx)*8 + sizeof(RegisterInfoPOSIX_loongarch64::GPR)) +#define FCC_OFFSET(idx) ((idx)*1 + 32 * 8 + sizeof(RegisterInfoPOSIX_loongarch64::GPR)) ---------------- SixWeining wrote: > I'm not sure whether you could use `RegisterInfoPOSIX_loongarch64` in this > file directly because I think this file is a `common` file. What do you > think? @DavidSpickett Maybe it is better to define them in RegisterInfoPOSIX_loongarch64.cpp, let me modify it, thank you. ================ Comment at: lldb/source/Plugins/Process/Utility/RegisterInfos_loongarch64.h:98 + DEFINE_GPR64_ALT(r20, t8, LLDB_INVALID_REGNUM), + DEFINE_GPR64_ALT(r21, u0, LLDB_INVALID_REGNUM), + DEFINE_GPR64_ALT(r22, fp, LLDB_REGNUM_GENERIC_FP), ---------------- xen0n wrote: > SixWeining wrote: > > `u0` is a unknown alias. Could we just use `DEFINE_GPR64`? > FYI the `u0` name is [[ > https://www.kernel.org/doc/html/latest/loongarch/introduction.html | a > non-standard alias only seen in the Linux kernel ]]. It should be harmless to > just support `r21` but not `u0`, much like how we don't support `v0/v1` any > more. > > While at it, `s9` in addition to `fp` may be supported too. (Arguably `s9` is > a better description of `r22` than `fp`, because FP usage can be disabled > while generating code, in which case it's just another ordinary callee-saved > register. But it seems some people believe so deeply that this usage is > acceptable that the name persisted into the final ABI document...) OK, according to Register Convention in LoongArch ELF ABI specification https://loongson.github.io/LoongArch-Documentation/LoongArch-ELF-ABI-EN.html#_register_convention let me remove the alias u0 for r21, use fp and s9 for r22, thank you. CHANGES SINCE LAST ACTION https://reviews.llvm.org/D138407/new/ https://reviews.llvm.org/D138407 _______________________________________________ lldb-commits mailing list lldb-commits@lists.llvm.org https://lists.llvm.org/cgi-bin/mailman/listinfo/lldb-commits
