From ba20dd9b6125551ecf2016ed7dbd61dc618fc876 Mon Sep 17 00:00:00 2001 From: Lioncash Date: Thu, 15 Dec 2016 16:19:30 -0500 Subject: gdbstub: Remove global variable from public interface Currently, this is only ever queried, so adding a function to check if the server is enabled is more sensible. If directly modifying this externally is ever desirable, it should be done by adding a function to the interface, rather than exposing implementation details directly. --- src/core/arm/dyncom/arm_dyncom_interpreter.cpp | 4 ++-- src/core/arm/skyeye_common/armstate.cpp | 2 +- src/core/core.cpp | 2 +- src/core/gdbstub/gdbstub.cpp | 20 ++++++++++++++------ src/core/gdbstub/gdbstub.h | 11 +++++------ 5 files changed, 23 insertions(+), 16 deletions(-) diff --git a/src/core/arm/dyncom/arm_dyncom_interpreter.cpp b/src/core/arm/dyncom/arm_dyncom_interpreter.cpp index 7b8616702..67c45640a 100644 --- a/src/core/arm/dyncom/arm_dyncom_interpreter.cpp +++ b/src/core/arm/dyncom/arm_dyncom_interpreter.cpp @@ -953,7 +953,7 @@ unsigned InterpreterMainLoop(ARMul_State* cpu) { #define GDB_BP_CHECK \ cpu->Cpsr &= ~(1 << 5); \ cpu->Cpsr |= cpu->TFlag << 5; \ - if (GDBStub::g_server_enabled) { \ + if (GDBStub::IsServerEnabled()) { \ if (GDBStub::IsMemoryBreak() || (breakpoint_data.type != GDBStub::BreakpointType::None && \ PC == breakpoint_data.address)) { \ GDBStub::Break(); \ @@ -1649,7 +1649,7 @@ DISPATCH : { } // Find breakpoint if one exists within the block - if (GDBStub::g_server_enabled && GDBStub::IsConnected()) { + if (GDBStub::IsConnected()) { breakpoint_data = GDBStub::GetNextBreakpointFromAddress(cpu->Reg[15], GDBStub::BreakpointType::Execute); } diff --git a/src/core/arm/skyeye_common/armstate.cpp b/src/core/arm/skyeye_common/armstate.cpp index 1465b074e..c36b0208f 100644 --- a/src/core/arm/skyeye_common/armstate.cpp +++ b/src/core/arm/skyeye_common/armstate.cpp @@ -182,7 +182,7 @@ void ARMul_State::ResetMPCoreCP15Registers() { } static void CheckMemoryBreakpoint(u32 address, GDBStub::BreakpointType type) { - if (GDBStub::g_server_enabled && GDBStub::CheckBreakpoint(address, type)) { + if (GDBStub::IsServerEnabled() && GDBStub::CheckBreakpoint(address, type)) { LOG_DEBUG(Debug, "Found memory breakpoint @ %08x", address); GDBStub::Break(true); } diff --git a/src/core/core.cpp b/src/core/core.cpp index 49ac8be6e..6efa18159 100644 --- a/src/core/core.cpp +++ b/src/core/core.cpp @@ -22,7 +22,7 @@ std::unique_ptr g_sys_core; ///< ARM11 system (OS) core /// Run the core CPU loop void RunLoop(int tight_loop) { - if (GDBStub::g_server_enabled) { + if (GDBStub::IsServerEnabled()) { GDBStub::HandlePacket(); // If the loop is halted and we want to step, use a tiny (1) number of instructions to diff --git a/src/core/gdbstub/gdbstub.cpp b/src/core/gdbstub/gdbstub.cpp index 21d941363..1303bafc1 100644 --- a/src/core/gdbstub/gdbstub.cpp +++ b/src/core/gdbstub/gdbstub.cpp @@ -5,6 +5,7 @@ // Originally written by Sven Peter for anergistic. #include +#include #include #include #include @@ -130,7 +131,10 @@ static u16 gdbstub_port = 24689; static bool halt_loop = true; static bool step_loop = false; -std::atomic g_server_enabled(false); + +// If set to false, the server will never be started and no +// gdbstub-related functions will be executed. +static std::atomic server_enabled(false); #ifdef _WIN32 WSADATA InitData; @@ -902,7 +906,7 @@ void SetServerPort(u16 port) { void ToggleServer(bool status) { if (status) { - g_server_enabled = status; + server_enabled = status; // Start server if (!IsConnected() && Core::g_sys_core != nullptr) { @@ -914,12 +918,12 @@ void ToggleServer(bool status) { Shutdown(); } - g_server_enabled = status; + server_enabled = status; } } static void Init(u16 port) { - if (!g_server_enabled) { + if (!server_enabled) { // Set the halt loop to false in case the user enabled the gdbstub mid-execution. // This way the CPU can still execute normally. halt_loop = false; @@ -998,7 +1002,7 @@ void Init() { } void Shutdown() { - if (!g_server_enabled) { + if (!server_enabled) { return; } @@ -1015,8 +1019,12 @@ void Shutdown() { LOG_INFO(Debug_GDBStub, "GDB stopped."); } +bool IsServerEnabled() { + return server_enabled; +} + bool IsConnected() { - return g_server_enabled && gdbserver_socket != -1; + return IsServerEnabled() && gdbserver_socket != -1; } bool GetCpuHaltFlag() { diff --git a/src/core/gdbstub/gdbstub.h b/src/core/gdbstub/gdbstub.h index a7483bb10..38177e32c 100644 --- a/src/core/gdbstub/gdbstub.h +++ b/src/core/gdbstub/gdbstub.h @@ -5,7 +5,7 @@ // Originally written by Sven Peter for anergistic. #pragma once -#include + #include "common/common_types.h" namespace GDBStub { @@ -24,10 +24,6 @@ struct BreakpointAddress { BreakpointType type; }; -/// If set to false, the server will never be started and no gdbstub-related functions will be -/// executed. -extern std::atomic g_server_enabled; - /** * Set the port the gdbstub should use to listen for connections. * @@ -36,7 +32,7 @@ extern std::atomic g_server_enabled; void SetServerPort(u16 port); /** - * Set the g_server_enabled flag and start or stop the server if possible. + * Starts or stops the server if possible. * * @param status Set the server to enabled or disabled. */ @@ -48,6 +44,9 @@ void Init(); /// Stop gdbstub server. void Shutdown(); +/// Checks if the gdbstub server is enabled. +bool IsServerEnabled(); + /// Returns true if there is an active socket connection. bool IsConnected(); -- cgit v1.2.3