From e9c3d16f6fdb7bbd16aab28ddfd9bb8617f0090b Mon Sep 17 00:00:00 2001 From: Liam Date: Thu, 12 Jan 2023 18:35:14 -0500 Subject: debugger: add host fastmem pointer fetch command --- src/core/debugger/gdbstub.cpp | 26 +++++++++++++++++++++++--- 1 file changed, 23 insertions(+), 3 deletions(-) diff --git a/src/core/debugger/gdbstub.cpp b/src/core/debugger/gdbstub.cpp index a64a9ac64..9c02b7b31 100644 --- a/src/core/debugger/gdbstub.cpp +++ b/src/core/debugger/gdbstub.cpp @@ -11,6 +11,7 @@ #include "common/hex_util.h" #include "common/logging/log.h" #include "common/scope_exit.h" +#include "common/settings.h" #include "core/arm/arm_interface.h" #include "core/core.h" #include "core/debugger/gdbstub.h" @@ -731,7 +732,25 @@ void GDBStub::HandleRcmd(const std::vector& command) { auto* process = system.CurrentProcess(); auto& page_table = process->PageTable(); - if (command_str == "get info") { + const char* commands = "Commands:\n" + " get fastmem\n" + " get info\n" + " get mappings\n"; + + if (command_str == "get fastmem") { + if (Settings::IsFastmemEnabled()) { + const auto& impl = page_table.PageTableImpl(); + const auto region = reinterpret_cast(impl.fastmem_arena); + const auto region_bits = impl.current_address_space_width_in_bits; + const auto region_size = 1ULL << region_bits; + + reply = fmt::format("Region bits: {}\n" + "Host address: {:#x} - {:#x}\n", + region_bits, region, region + region_size - 1); + } else { + reply = "Fastmem is not enabled.\n"; + } + } else if (command_str == "get info") { Loader::AppLoader::Modules modules; system.GetAppLoader().ReadNSOModules(modules); @@ -787,9 +806,10 @@ void GDBStub::HandleRcmd(const std::vector& command) { cur_addr = next_address; } } else if (command_str == "help") { - reply = "Commands:\n get info\n get mappings\n"; + reply = commands; } else { - reply = "Unknown command.\nCommands:\n get info\n get mappings\n"; + reply = "Unknown command.\n"; + reply += commands; } std::span reply_span{reinterpret_cast(&reply.front()), reply.size()}; -- cgit v1.2.3