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[lldb][lldb-dap] Respect x86 disassembly flavor setting #134722

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Merged
merged 5 commits into from
Apr 27, 2025
Merged

[lldb][lldb-dap] Respect x86 disassembly flavor setting #134722

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ababee3
[lldb][lldb-dap] Respect x86 disassembly flavor setting
da-viper Apr 7, 2025
c69872d
[lldb][lldb-dap] add review changes
da-viper Apr 16, 2025
d8ea630
Update lldb/tools/lldb-dap/Handler/DisassembleRequestHandler.cpp
da-viper Apr 25, 2025
ebbf286
Update lldb/tools/lldb-dap/Handler/DisassembleRequestHandler.cpp
da-viper Apr 25, 2025
b3ef9b9
Update lldb/source/Commands/CommandObjectDisassemble.cpp
da-viper Apr 25, 2025
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1 change: 1 addition & 0 deletions lldb/source/Commands/CommandObjectDisassemble.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -190,6 +190,7 @@ void CommandObjectDisassemble::CommandOptions::OptionParsingStarting(
// architecture. For now GetDisassemblyFlavor is really only valid for x86
// (and for the llvm assembler plugin, but I'm papering over that since that
// is the only disassembler plugin we have...
// This logic is duplicated in `Handler/DisassembleRequestHandler`.
if (target->GetArchitecture().GetTriple().getArch() == llvm::Triple::x86 ||
target->GetArchitecture().GetTriple().getArch() ==
llvm::Triple::x86_64) {
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19 changes: 18 additions & 1 deletion lldb/tools/lldb-dap/Handler/DisassembleRequestHandler.cpp
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Expand Up @@ -116,7 +116,24 @@ void DisassembleRequestHandler::operator()(

const auto inst_count =
GetInteger<int64_t>(arguments, "instructionCount").value_or(0);
lldb::SBInstructionList insts = dap.target.ReadInstructions(addr, inst_count);

std::string flavor_string;
const auto target_triple = llvm::StringRef(dap.target.GetTriple());
// This handles both 32 and 64bit x86 architecture. The logic is duplicated in
// `CommandObjectDisassemble::CommandOptions::OptionParsingStarting`
if (target_triple.starts_with("x86")) {
const lldb::SBStructuredData flavor =
dap.debugger.GetSetting("target.x86-disassembly-flavor");

const size_t str_length = flavor.GetStringValue(nullptr, 0);
if (str_length != 0) {
flavor_string.resize(str_length + 1);
flavor.GetStringValue(flavor_string.data(), flavor_string.length());
}
}

lldb::SBInstructionList insts =
dap.target.ReadInstructions(addr, inst_count, flavor_string.c_str());

if (!insts.IsValid()) {
response["success"] = false;
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