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Debugger: Add missing files

This commit is contained in:
Vicki Pfau 2017-06-02 19:43:42 -07:00
parent 19ecae8ca1
commit d240272ac4
2 changed files with 90 additions and 0 deletions
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20
include/mgba/internal/lr35902/debugger/memory-debugger.h Normal file
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/* Copyright (c) 2013-2017 Jeffrey Pfau
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#ifndef LR35902_MEMORY_DEBUGGER_H
#define LR35902_MEMORY_DEBUGGER_H
#include <mgba-util/common.h>
CXX_GUARD_START
struct LR35902Debugger;
void LR35902DebuggerInstallMemoryShim(struct LR35902Debugger* debugger);
void LR35902DebuggerRemoveMemoryShim(struct LR35902Debugger* debugger);
CXX_GUARD_END
#endif

70
src/lr35902/debugger/memory-debugger.c Normal file
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/* Copyright (c) 2013-2017 Jeffrey Pfau
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#include <mgba/internal/lr35902/debugger/memory-debugger.h>
#include <mgba/internal/lr35902/debugger/debugger.h>
#include <mgba-util/math.h>
#include <string.h>
static bool _checkWatchpoints(struct LR35902Debugger* debugger, uint16_t address, struct mDebuggerEntryInfo* info, enum mWatchpointType type, uint8_t newValue);
#define FIND_DEBUGGER(DEBUGGER, CPU) \
do { \
DEBUGGER = 0; \
size_t i; \
for (i = 0; i < CPU->numComponents; ++i) { \
if (CPU->components[i]->id == DEBUGGER_ID) { \
DEBUGGER = (struct LR35902Debugger*) ((struct mDebugger*) cpu->components[i])->platform; \
goto debuggerFound; \
} \
} \
abort(); \
debuggerFound: break; \
} while(0)
#define CREATE_WATCHPOINT_SHIM(NAME, RW, RETURN, TYPES, ...) \
static RETURN DebuggerShim_ ## NAME TYPES { \
struct LR35902Debugger* debugger; \
FIND_DEBUGGER(debugger, cpu); \
struct mDebuggerEntryInfo info; \
if (_checkWatchpoints(debugger, address, &info, WATCHPOINT_ ## RW, 0)) { \
mDebuggerEnter(debugger->d.p, DEBUGGER_ENTER_WATCHPOINT, &info); \
} \
return debugger->originalMemory.NAME(cpu, __VA_ARGS__); \
}
CREATE_WATCHPOINT_SHIM(load8, READ, uint8_t, (struct LR35902Core* cpu, uint16_t address), address)
CREATE_WATCHPOINT_SHIM(store8, WRITE, void, (struct LR35902Core* cpu, uint16_t address, int8_t value), address, value)
static bool _checkWatchpoints(struct LR35902Debugger* debugger, uint16_t address, struct mDebuggerEntryInfo* info, enum mWatchpointType type, uint8_t newValue) {
struct LR35902DebugWatchpoint* watchpoint;
size_t i;
for (i = 0; i < LR35902DebugWatchpointListSize(&debugger->watchpoints); ++i) {
watchpoint = LR35902DebugWatchpointListGetPointer(&debugger->watchpoints, i);
if (watchpoint->address == address && (watchpoint->segment < 0 || watchpoint->segment == debugger->originalMemory.currentSegment(debugger->cpu, address)) && watchpoint->type & type) {
info->oldValue = debugger->originalMemory.load8(debugger->cpu, address);
info->newValue = newValue;
info->address = address;
info->watchType = watchpoint->type;
info->accessType = type;
return true;
}
}
return false;
}
void LR35902DebuggerInstallMemoryShim(struct LR35902Debugger* debugger) {
debugger->originalMemory = debugger->cpu->memory;
debugger->cpu->memory.store8 = DebuggerShim_store8;
debugger->cpu->memory.load8 = DebuggerShim_load8;
}
void LR35902DebuggerRemoveMemoryShim(struct LR35902Debugger* debugger) {
debugger->cpu->memory.store8 = debugger->originalMemory.store8;
debugger->cpu->memory.load8 = debugger->originalMemory.load8;
}