================
@@ -84,3 +96,73 @@ RegisterInfoPOSIXDynamic_riscv32::GetRegisterInfo(
llvm::StringRef reg_name) const {
return m_dyn_reg_infos.GetRegisterInfo(reg_name);
}
+
+void RegisterInfoPOSIXDynamic_riscv32::BuildCSRegInfos(
+ llvm::ArrayRef<std::string> features,
+ llvm::SmallVectorImpl<lldb_private::RegisterInfo> &cs_reg_infos) {
+ cs_reg_infos.clear();
+
+ // Sort and deduplicate the feature list to make the resulting CSR metadata
+ // independent of caller ordering.
+ llvm::SmallVector<llvm::StringRef> normalized_features(features.begin(),
+ features.end());
+ llvm::sort(normalized_features);
+ normalized_features.erase(llvm::unique(normalized_features),
+ normalized_features.end());
+
+ const uint32_t k_num_csr_registers = csr_last_riscv - csr_first_riscv + 1;
+ cs_reg_infos.reserve(k_num_csr_registers);
+
+ // Construct default CS register information. CS register information entries
+ // are stored in CSR-address order. For each entry at slot 'reg',
+ // kinds[eRegisterKindLLDB] = csr_first_riscv + reg.
+ // So, patch entries can recover the slot as:
+ // idx = lldb_reg - csr_first_riscv.
----------------
ayushsahay1837 wrote:
> It might be worth documenting that that each entry's kinds[eRegisterKindLLDB]
> doubles as its slot index: e.g. `idx = lldb_reg - csr_first_riscv`.
@JDevlieghere, I added this in response to your earlier suggestion to document
that each entry's _kinds[eRegisterKindLLDB]_ doubles as its slot index. I
placed it here because this is where each entry's _kinds[eRegisterKindLLDB]_ is
set but I'm happy to move or reword it if you think that there's a more
appropriate location. Do you have a recommendation?
https://github.com/llvm/llvm-project/pull/203234
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