mirror of
https://github.com/Atmosphere-NX/Atmosphere.git
synced 2024-12-25 03:36:02 +00:00
95 lines
3.6 KiB
C++
95 lines
3.6 KiB
C++
/*
|
|
* Copyright (c) Atmosphère-NX
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify it
|
|
* under the terms and conditions of the GNU General Public License,
|
|
* version 2, as published by the Free Software Foundation.
|
|
*
|
|
* This program is distributed in the hope it will be useful, but WITHOUT
|
|
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
|
|
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
|
|
* more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program. If not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
#include <stratosphere.hpp>
|
|
#include "dmnt2_software_breakpoint.hpp"
|
|
#include "dmnt2_debug_process.hpp"
|
|
#include "dmnt2_debug_log.hpp"
|
|
|
|
namespace ams::dmnt {
|
|
|
|
namespace {
|
|
|
|
constexpr const u8 Aarch64BreakInstruction[] = {0xFF, 0xFF, 0xFF, 0xE7};
|
|
constexpr const u8 Aarch32BreakInstruction[] = {0xFE, 0xDE, 0xFF, 0xE7};
|
|
constexpr const u8 Aarch32ThumbBreakInstruction[] = {0x80, 0xB6};
|
|
|
|
}
|
|
|
|
Result SoftwareBreakPoint::Clear(DebugProcess *debug_process) {
|
|
Result result = svc::ResultInvalidArgument();
|
|
if (m_in_use) {
|
|
if (m_address) {
|
|
result = debug_process->WriteMemory(std::addressof(m_insn), m_address, m_size);
|
|
if (R_SUCCEEDED(result)) {
|
|
AMS_DMNT2_GDB_LOG_DEBUG("SoftwareBreakPoint::Clear %p 0x%lx, insn=0x%x\n", this, m_address, m_insn);
|
|
} else {
|
|
AMS_DMNT2_GDB_LOG_DEBUG("SoftwareBreakPoint::Clear %p 0x%lx, insn=0x%x, !!! Fail %08x !!!\n", this, m_address, m_insn, result.GetValue());
|
|
}
|
|
this->Reset();
|
|
} else {
|
|
AMS_DMNT2_GDB_LOG_ERROR("SoftwareBreakPoint::Clear %p 0x%lx, insn=0x%x, !!! Null Address !!!\n", this, m_address, m_insn);
|
|
}
|
|
}
|
|
return result;
|
|
}
|
|
|
|
Result SoftwareBreakPoint::Set(DebugProcess *debug_process, uintptr_t address, size_t size, bool is_step) {
|
|
/* Set fields. */
|
|
m_is_step = is_step;
|
|
m_address = address;
|
|
m_size = size;
|
|
|
|
/* Read our instruction. */
|
|
Result result = debug_process->ReadMemory(std::addressof(m_insn), m_address, m_size);
|
|
AMS_DMNT2_GDB_LOG_DEBUG("SoftwareBreakPoint::Set %p 0x%lx, insn=0x%x\n", this, m_address, m_insn);
|
|
|
|
/* Set the breakpoint. */
|
|
if (debug_process->Is64Bit()) {
|
|
if (m_size == sizeof(Aarch64BreakInstruction)) {
|
|
result = debug_process->WriteMemory(Aarch64BreakInstruction, m_address, m_size);
|
|
} else {
|
|
result = svc::ResultInvalidArgument();
|
|
}
|
|
} else {
|
|
if (m_size == sizeof(Aarch32BreakInstruction) || m_size == sizeof(Aarch32ThumbBreakInstruction)) {
|
|
result = debug_process->WriteMemory(m_size == sizeof(Aarch32BreakInstruction) ? Aarch32BreakInstruction : Aarch32ThumbBreakInstruction, m_address, m_size);
|
|
} else {
|
|
result = svc::ResultInvalidArgument();
|
|
}
|
|
}
|
|
|
|
/* Check that we succeeded. */
|
|
if (R_SUCCEEDED(result)) {
|
|
m_in_use = true;
|
|
}
|
|
|
|
return result;
|
|
}
|
|
|
|
SoftwareBreakPointManager::SoftwareBreakPointManager(DebugProcess *debug_process) : BreakPointManager(debug_process) {
|
|
/* ... */
|
|
}
|
|
|
|
BreakPointBase *SoftwareBreakPointManager::GetBreakPoint(size_t index) {
|
|
if (index < util::size(m_breakpoints)) {
|
|
return m_breakpoints + index;
|
|
} else {
|
|
return nullptr;
|
|
}
|
|
}
|
|
|
|
|
|
}
|