================
@@ -164,11 +167,82 @@ TotalArgsSizeInWords(bool is_rv64,
return total_size;
}
+static bool UpdateRegister(RegisterContext *reg_ctx,
+ const lldb::RegisterKind reg_kind,
+ const uint32_t reg_num, const addr_t value) {
+ Log *log = GetLog(LLDBLog::Expressions);
+
+ const RegisterInfo *reg_info = reg_ctx->GetRegisterInfo(reg_kind, reg_num);
+
+ LLDB_LOG(log, "Writing {0}: 0x{1:x}", reg_info->name,
+ static_cast<uint64_t>(value));
+ if (!reg_ctx->WriteRegisterFromUnsigned(reg_info, value)) {
+ LLDB_LOG(log, "Writing {0}: failed", reg_info->name);
+ return false;
+ }
+ return true;
+}
+
+static void LogInitInfo(Log *log, const Thread &thread, addr_t sp,
+ addr_t func_addr, addr_t return_addr,
+ const llvm::ArrayRef<addr_t> args) {
+ assert(log);
+ std::stringstream ss;
+ ss << "ABISysV_riscv::PrepareTrivialCall"
+ << " (tid = 0x" << std::hex << thread.GetID() << ", sp = 0x" << sp
+ << ", func_addr = 0x" << func_addr << ", return_addr = 0x" << return_addr;
+
+ for (auto &&[idx, arg] : enumerate(args))
+ ss << ", arg" << std::dec << idx << " = 0x" << std::hex << arg;
+ ss << ")";
+ log->PutString(ss.str());
+}
+
bool ABISysV_riscv::PrepareTrivialCall(Thread &thread, addr_t sp,
addr_t func_addr, addr_t return_addr,
llvm::ArrayRef<addr_t> args) const {
- // TODO: Implement
- return false;
+ Log *log = GetLog(LLDBLog::Expressions);
+ if (log)
+ LogInitInfo(log, thread, sp, func_addr, return_addr, args);
+
+ const auto reg_ctx_sp = thread.GetRegisterContext();
+ if (!reg_ctx_sp) {
+ LLDB_LOG(log, "Failed to get RegisterContext");
+ return false;
+ }
+
+ if (args.size() > s_regs_for_args_count) {
+ LLDB_LOG(log, "Function has {0} arguments, but only {1} are allowed!",
+ args.size(), s_regs_for_args_count);
+ return false;
+ }
+
+ // Write arguments to registers
+ for (auto &&[idx, arg] : enumerate(args)) {
----------------
dlav-sc wrote:
addressed
https://github.com/llvm/llvm-project/pull/99336
_______________________________________________
lldb-commits mailing list
lldb-commits@lists.llvm.org
https://lists.llvm.org/cgi-bin/mailman/listinfo/lldb-commits
