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Support threads in gdb

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momo5502
2025-01-18 19:38:01 +01:00
parent 75c9ad065b
commit 4e80a8bf16
6 changed files with 132 additions and 4 deletions
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49
src/gdb-stub/gdb_stub.cpp
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@@ -115,6 +115,28 @@ namespace gdb_stub
{
connection.send_reply("OK");
}
else if (name == "C")
{
const auto thread_id = handler.get_current_thread_id();
connection.send_reply("QC" + utils::string::to_hex_number(thread_id));
}
else if (name == "sThreadInfo")
{
connection.send_reply("l");
}
else if (name == "fThreadInfo")
{
std::string reply{};
const auto ids = handler.get_thread_ids();
for (const auto id : ids)
{
reply.push_back(reply.empty() ? 'm' : ',');
reply.append(utils::string::to_hex_number(id));
}
connection.send_reply(reply);
}
else
{
connection.send_reply({});
@@ -389,6 +411,29 @@ namespace gdb_stub
connection.send_reply("OK");
}
void switch_to_thread(connection_handler& connection, debugging_handler& handler,
const std::string_view payload)
{
if (payload.size() < 2)
{
connection.send_reply({});
return;
}
const auto operation = payload[0];
if (operation != 'g')
{
connection.send_reply("OK");
return;
}
uint32_t id{};
rt_assert(sscanf_s(std::string(payload.substr(1)).c_str(), "%x", &id) == 1);
const auto res = id == 0 || handler.switch_to_thread(id);
connection.send_reply(res ? "OK" : "E01");
}
void handle_command(connection_handler& connection, async_handler& async, debugging_handler& handler,
const uint8_t command, const std::string_view data)
{
@@ -453,6 +498,10 @@ namespace gdb_stub
write_x_memory(connection, handler, data);
break;
case 'H':
switch_to_thread(connection, handler, data);
break;
default:
connection.send_reply({});
break;