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More refactoring for CardiTaskThreadPatch

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This commit is contained in:
Gericom
2025-12-26 13:11:49 +01:00
parent c8898ff13c
commit 9fea5f7a51
2 changed files with 186 additions and 185 deletions
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368
arm9/source/patches/arm7/sdk2to4/CardiTaskThreadPatch.cpp
View File

@@ -20,8 +20,9 @@ struct CardiTaskThreadSignature
CardiTaskThreadPatch::PatchVariant patchVariant;
};
static constexpr auto sSignaturesArm = std::to_array<const CardiTaskThreadSignature>
static constexpr auto sSignatures = std::to_array<const CardiTaskThreadSignature>
({
// arm
{ { (const u32[]) { 0xE92D4FF0u, 0xE24DD004u, 0xE59FA108u, 0xE28A5040u }, 0x020029A0, 0x02005015 }, CardiTaskThreadPatch::PatchVariant::ArmA },
{ { (const u32[]) { 0xE92D4FF0u, 0xE24DD004u, 0xE59FA10Cu, 0xE28A5040u }, 0x02004F50, 0x02017532 }, CardiTaskThreadPatch::PatchVariant::ArmB },
{ { (const u32[]) { 0xE92D4FF0u, 0xE24DD004u, 0xE59F91DCu, 0xE2895044u }, 0x02017532, 0x02017532 }, CardiTaskThreadPatch::PatchVariant::ArmC },
@@ -44,11 +45,9 @@ static constexpr auto sSignaturesArm = std::to_array<const CardiTaskThreadSignat
{ { (const u32[]) { 0xE92D41F0u, 0xE59F4200u, 0xE3A05000u, 0xEBFFFAD7u }, 0x03017531, 0x03017531 }, CardiTaskThreadPatch::PatchVariant::ArmE },
{ { (const u32[]) { 0xE92D41F0u, 0xE59F4200u, 0xE3A05000u, 0xEBFFFAA5u }, 0x03027531, 0x03027531 }, CardiTaskThreadPatch::PatchVariant::ArmE },
{ { (const u32[]) { 0xE92D41F0u, 0xE59F4200u, 0xE3A05000u, 0xEBFFEADBu }, 0x03027531, 0x03027531 }, CardiTaskThreadPatch::PatchVariant::ArmE },
{ { (const u32[]) { 0xE92D41F0u, 0xE59F4224u, 0xE3A05000u, 0xEBFFEA68u }, 0x04027533, 0x04027533 }, CardiTaskThreadPatch::PatchVariant::ArmF }
});
{ { (const u32[]) { 0xE92D41F0u, 0xE59F4224u, 0xE3A05000u, 0xEBFFEA68u }, 0x04027533, 0x04027533 }, CardiTaskThreadPatch::PatchVariant::ArmF },
static constexpr auto sSignaturesThumb = std::to_array<const CardiTaskThreadSignature>
({
// thumb
{ { (const u32[]) { 0xB081B5F0u, 0x1C2E4D2Du, 0x27103640u, 0xF7FC2400u }, 0x02004FB0, 0x02004FB4 }, CardiTaskThreadPatch::PatchVariant::ThumbA },
{ { (const u32[]) { 0xB081B5F0u, 0x1C2E4D2Bu, 0x27103640u, 0xF7FC2400u }, 0x02007531, 0x02017532 }, CardiTaskThreadPatch::PatchVariant::ThumbB },
{ { (const u32[]) { 0xB081B5F0u, 0x1C264C57u, 0x27103644u, 0xF7FC2500u }, 0x02027532, 0x02027535 }, CardiTaskThreadPatch::PatchVariant::ThumbC },
@@ -63,21 +62,15 @@ static constexpr auto sSignaturesThumb = std::to_array<const CardiTaskThreadSign
bool CardiTaskThreadPatch::FindPatchTarget(PatchContext& patchContext)
{
for (const auto& signature : sSignaturesArm)
for (const auto& signature : sSignatures)
{
if (CheckSignature(patchContext, signature.signature))
if (patchContext.GetSdkVersion() >= signature.signature.GetMinimumSdkVersion() &&
patchContext.GetSdkVersion() <= signature.signature.GetMaximumSdkVersion())
{
_patchVariant = signature.patchVariant;
break;
}
}
if (!_cardiTaskThread)
{
for (const auto& signature : sSignaturesThumb)
{
if (CheckSignature(patchContext, signature.signature))
_cardiTaskThread = patchContext.FindPattern32(signature.signature.GetPattern(), 16);
if (_cardiTaskThread)
{
LOG_DEBUG("CARDi_TaskThread found at 0x%p\n", _cardiTaskThread);
_patchVariant = signature.patchVariant;
break;
}
@@ -141,186 +134,193 @@ void CardiTaskThreadPatch::ApplyPatch(PatchContext& patchContext)
__patch_carditaskthread_writesave_asm_address = (u32)writeSavePatchCode->GetWriteSaveFunction();
__patch_carditaskthread_verifysave_asm_address = (u32)verifySavePatchCode->GetVerifySaveFunction();
u32 entryAddress;
u32 patchOffset;
if (_patchVariant >= PatchVariant::ThumbA)
{
if (_patchVariant == PatchVariant::ThumbF)
{
// [+0x90] = 00 18 78 44
// adds r0, r0, r0
// add r0, pc
patchOffset = 0x90;
entryAddress = (u32)&__patch_carditaskthread_entry - (u32)SECTION_START(patch_carditaskthread) + (u32)patch1Address;
__patch_carditaskthread_mov_cardicommon_to_r4 = THUMB_MOVS_REG(THUMB_R4, THUMB_R5);
__patch_carditaskthread_successoffset = *(u16*)((u8*)_cardiTaskThread + patchOffset + 0x0C) + 9;
__patch_carditaskthread_failoffset = *(u16*)((u8*)_cardiTaskThread + patchOffset + 0x14) + 9;
*(u16*)((u8*)_cardiTaskThread + patchOffset + 0x00) = THUMB_LDR_PC_IMM(THUMB_R1, 4);
*(u16*)((u8*)_cardiTaskThread + patchOffset + 0x02) = THUMB_MOV_HIREG(THUMB_HI_LR, THUMB_HI_PC);
*(u16*)((u8*)_cardiTaskThread + patchOffset + 0x04) = THUMB_BX(THUMB_R1);
*(u32*)((u8*)_cardiTaskThread + patchOffset + 0x08) = entryAddress;
}
else if (_patchVariant == PatchVariant::ThumbE)
{
// [+0x90] = 00 18 78 44
// adds r0, r0, r0
// add r0, pc
patchOffset = 0x90;
entryAddress = (u32)&__patch_carditaskthread_entry - (u32)SECTION_START(patch_carditaskthread) + (u32)patch1Address;
__patch_carditaskthread_mov_cardicommon_to_r4 = THUMB_NOP;
__patch_carditaskthread_successoffset = *(u16*)((u8*)_cardiTaskThread + patchOffset + 0x0C) + 9;
__patch_carditaskthread_failoffset = *(u16*)((u8*)_cardiTaskThread + patchOffset + 0x14) + 9;
*(u16*)((u8*)_cardiTaskThread + patchOffset + 0x00) = THUMB_LDR_PC_IMM(THUMB_R1, 4);
*(u16*)((u8*)_cardiTaskThread + patchOffset + 0x02) = THUMB_MOV_HIREG(THUMB_HI_LR, THUMB_HI_PC);
*(u16*)((u8*)_cardiTaskThread + patchOffset + 0x04) = THUMB_BX(THUMB_R1);
*(u32*)((u8*)_cardiTaskThread + patchOffset + 0x08) = entryAddress;
}
else if (_patchVariant == PatchVariant::ThumbD)
{
// [+0x98] = 00 18 78 44
// adds r0, r0, r0
// add r0, pc
patchOffset = 0x98;
entryAddress = (u32)&__patch_carditaskthread_entry - (u32)SECTION_START(patch_carditaskthread) + (u32)patch1Address;
__patch_carditaskthread_mov_cardicommon_to_r4 = THUMB_NOP;
__patch_carditaskthread_successoffset = *(u16*)((u8*)_cardiTaskThread + patchOffset + 0x0E) + 8;
__patch_carditaskthread_failoffset = *(u16*)((u8*)_cardiTaskThread + patchOffset + 0x18) + 8;
*(u16*)((u8*)_cardiTaskThread + patchOffset + 0x00) = THUMB_LDR_PC_IMM(THUMB_R1, 4);
*(u16*)((u8*)_cardiTaskThread + patchOffset + 0x02) = THUMB_MOV_HIREG(THUMB_HI_LR, THUMB_HI_PC);
*(u16*)((u8*)_cardiTaskThread + patchOffset + 0x04) = THUMB_BX(THUMB_R1);
*(u32*)((u8*)_cardiTaskThread + patchOffset + 0x08) = entryAddress;
}
else if (_patchVariant == PatchVariant::ThumbC)
{
// [+0x82] = 00 18 78 44
// adds r0, r0, r0
// add r0, pc
patchOffset = 0x82;
entryAddress = (u32)&__patch_carditaskthread_entry - (u32)SECTION_START(patch_carditaskthread) + (u32)patch1Address;
__patch_carditaskthread_mov_cardicommon_to_r4 = THUMB_NOP;
__patch_carditaskthread_successoffset = *(u16*)((u8*)_cardiTaskThread + patchOffset + 0x0E) + 8;
__patch_carditaskthread_failoffset = *(u16*)((u8*)_cardiTaskThread + patchOffset + 0x18) + 8;
*(u16*)((u8*)_cardiTaskThread + patchOffset + 0x00) = THUMB_LDR_PC_IMM(THUMB_R1, 4);
*(u16*)((u8*)_cardiTaskThread + patchOffset + 0x02) = THUMB_MOV_HIREG(THUMB_HI_LR, THUMB_HI_PC);
*(u16*)((u8*)_cardiTaskThread + patchOffset + 0x04) = THUMB_BX(THUMB_R1);
*(u32*)((u8*)_cardiTaskThread + patchOffset + 0x06) = entryAddress;
}
else if (_patchVariant == PatchVariant::ThumbA || _patchVariant == PatchVariant::ThumbB)//patchContext.GetSdkVersion() >= 0x2004FB0)
{
// [+0x60 or +0x64] = 28 1C 69 68
// adds r0, r5, #0
// ldr r1, [r5, #4]
patchOffset = _patchVariant == PatchVariant::ThumbB ? 0x60 : 0x64;
entryAddress = (u32)&__patch_carditaskthread_entry - (u32)SECTION_START(patch_carditaskthread) + (u32)patch1Address;
__patch_carditaskthread_mov_cardicommon_to_r4 = THUMB_MOVS_REG(THUMB_R4, THUMB_R5);
__patch_carditaskthread_failoffset = 0;
__patch_carditaskthread_successoffset = 0;
*(u16*)((u8*)_cardiTaskThread + patchOffset + 0x00) = THUMB_LDR_PC_IMM(THUMB_R1, 0);
*(u16*)((u8*)_cardiTaskThread + patchOffset + 0x02) = 0xE001; // jump over entryAddress
*(u32*)((u8*)_cardiTaskThread + patchOffset + 0x04) = entryAddress;
*(u16*)((u8*)_cardiTaskThread + patchOffset + 0x08) = THUMB_NOP;
}
else
{
LOG_FATAL("Unsupported thumb CARDi_TaskThread\n");
while(1);
}
ApplyThumbPatch(patch1Address);
}
else
{
if (_patchVariant == PatchVariant::ArmA || _patchVariant == PatchVariant::ArmB)
{
// uses a table dispatch
__patch_carditaskthread_failoffset = 4;
__patch_carditaskthread_successoffset = 4;
if (_patchVariant == PatchVariant::ArmB)
{
// [+0xA4] = 0xE59F1074 = ldr r1,= table
patchOffset = 0xA4;
}
else
{
// [+0xA0] = 0xE59F1074 = ldr r1,= table
patchOffset = 0xA0;
}
entryAddress = (u32)&__patch_carditaskthread_entry - (u32)SECTION_START(patch_carditaskthread) + (u32)patch1Address;
__patch_carditaskthread_mov_cardicommon_to_r4 = THUMB_MOV_HIREG(THUMB_R4, THUMB_HI_R10);
*(u32*)((u8*)_cardiTaskThread + patchOffset + 0x00) = 0xe59f0004; // ldr r0,= entryAddress
*(u32*)((u8*)_cardiTaskThread + patchOffset + 0x04) = 0xe1a0e00f; // mov lr, pc
*(u32*)((u8*)_cardiTaskThread + patchOffset + 0x08) = 0xe12fff10; // bx r0
*(u32*)((u8*)_cardiTaskThread + patchOffset + 0x0C) = entryAddress;
}
else
{
switch (_patchVariant)
{
case PatchVariant::ArmC:
{
// [+0x9C] = 0xE5990004 = ldr r0, [r9, #4]
patchOffset = 0x9C;
entryAddress = (u32)&__patch_carditaskthread_entry - (u32)SECTION_START(patch_carditaskthread) + (u32)patch1Address;
__patch_carditaskthread_mov_cardicommon_to_r4 = THUMB_MOV_HIREG(THUMB_R4, THUMB_HI_R9);
break;
}
case PatchVariant::ArmD:
{
// [+0xB4] = 0xE5990004 = ldr r0, [r9, #4]
patchOffset = 0xB4;
entryAddress = (u32)&__patch_carditaskthread_entry - (u32)SECTION_START(patch_carditaskthread) + (u32)patch1Address;
__patch_carditaskthread_mov_cardicommon_to_r4 = THUMB_MOV_HIREG(THUMB_R4, THUMB_HI_R9);
break;
}
case PatchVariant::ArmE:
{
// [+0xA8] = 0xE5940004 = ldr r0, [r4, #4]
patchOffset = 0xA8;
entryAddress = (u32)&__patch_carditaskthread_entry - (u32)SECTION_START(patch_carditaskthread) + (u32)patch1Address;
__patch_carditaskthread_mov_cardicommon_to_r4 = THUMB_NOP;
break;
}
case PatchVariant::ArmF:
{
// [+0xA8] = 0x0A000044 = beq
patchOffset = 0xA8;
entryAddress = (u32)&__patch_carditaskthread_entry_sdk4 - (u32)SECTION_START(patch_carditaskthread) + (u32)patch1Address;
__patch_carditaskthread_mov_cardicommon_to_r4 = THUMB_NOP;
break;
}
default:
{
LOG_FATAL("Unsupported arm CARDi_TaskThread\n");
while(1);
}
}
*(u32*)((u8*)_cardiTaskThread + patchOffset + 0x00) = 0xe59f000C; // ldr r0,= entryAddress
*(u32*)((u8*)_cardiTaskThread + patchOffset + 0x04) = 0xe1a0e00f; // mov lr, pc
*(u32*)((u8*)_cardiTaskThread + patchOffset + 0x08) = 0xe12fff10; // bx r0
*(u32*)((u8*)_cardiTaskThread + patchOffset + 0x14) = entryAddress;
}
ApplyArmPatch(patch1Address);
}
memcpy(patch1Address, SECTION_START(patch_carditaskthread), patch1Size);
}
bool CardiTaskThreadPatch::CheckSignature(const PatchContext& patchContext, const FunctionSignature& signature)
void CardiTaskThreadPatch::ApplyArmPatch(void* patch1Address) const
{
if (patchContext.GetSdkVersion() >= signature.GetMinimumSdkVersion() &&
patchContext.GetSdkVersion() <= signature.GetMaximumSdkVersion())
u32 entryAddress;
u32 patchOffset;
if (_patchVariant == PatchVariant::ArmA || _patchVariant == PatchVariant::ArmB)
{
_cardiTaskThread = patchContext.FindPattern32(signature.GetPattern(), 16);
if (_cardiTaskThread)
// uses a table dispatch
__patch_carditaskthread_failoffset = 4;
__patch_carditaskthread_successoffset = 4;
if (_patchVariant == PatchVariant::ArmB)
{
LOG_DEBUG("CARDi_TaskThread found at 0x%p\n", _cardiTaskThread);
return true;
// [+0xA4] = 0xE59F1074 = ldr r1,= table
patchOffset = 0xA4;
}
else
{
// [+0xA0] = 0xE59F1074 = ldr r1,= table
patchOffset = 0xA0;
}
}
return false;
entryAddress = (u32)&__patch_carditaskthread_entry - (u32)SECTION_START(patch_carditaskthread) + (u32)patch1Address;
__patch_carditaskthread_mov_cardicommon_to_r4 = THUMB_MOV_HIREG(THUMB_R4, THUMB_HI_R10);
*(u32*)((u8*)_cardiTaskThread + patchOffset + 0x00) = 0xe59f0004; // ldr r0,= entryAddress
*(u32*)((u8*)_cardiTaskThread + patchOffset + 0x04) = 0xe1a0e00f; // mov lr, pc
*(u32*)((u8*)_cardiTaskThread + patchOffset + 0x08) = 0xe12fff10; // bx r0
*(u32*)((u8*)_cardiTaskThread + patchOffset + 0x0C) = entryAddress;
}
else
{
switch (_patchVariant)
{
case PatchVariant::ArmC:
{
// [+0x9C] = 0xE5990004 = ldr r0, [r9, #4]
patchOffset = 0x9C;
entryAddress = (u32)&__patch_carditaskthread_entry - (u32)SECTION_START(patch_carditaskthread) + (u32)patch1Address;
__patch_carditaskthread_mov_cardicommon_to_r4 = THUMB_MOV_HIREG(THUMB_R4, THUMB_HI_R9);
break;
}
case PatchVariant::ArmD:
{
// [+0xB4] = 0xE5990004 = ldr r0, [r9, #4]
patchOffset = 0xB4;
entryAddress = (u32)&__patch_carditaskthread_entry - (u32)SECTION_START(patch_carditaskthread) + (u32)patch1Address;
__patch_carditaskthread_mov_cardicommon_to_r4 = THUMB_MOV_HIREG(THUMB_R4, THUMB_HI_R9);
break;
}
case PatchVariant::ArmE:
{
// [+0xA8] = 0xE5940004 = ldr r0, [r4, #4]
patchOffset = 0xA8;
entryAddress = (u32)&__patch_carditaskthread_entry - (u32)SECTION_START(patch_carditaskthread) + (u32)patch1Address;
__patch_carditaskthread_mov_cardicommon_to_r4 = THUMB_NOP;
break;
}
case PatchVariant::ArmF:
{
// [+0xA8] = 0x0A000044 = beq
patchOffset = 0xA8;
entryAddress = (u32)&__patch_carditaskthread_entry_sdk4 - (u32)SECTION_START(patch_carditaskthread) + (u32)patch1Address;
__patch_carditaskthread_mov_cardicommon_to_r4 = THUMB_NOP;
break;
}
default:
{
LOG_FATAL("Unsupported CARDi_TaskThread\n");
while (1);
break;
}
}
*(u32*)((u8*)_cardiTaskThread + patchOffset + 0x00) = 0xE59F000C; // ldr r0,= entryAddress
*(u32*)((u8*)_cardiTaskThread + patchOffset + 0x04) = 0xE1A0E00F; // mov lr, pc
*(u32*)((u8*)_cardiTaskThread + patchOffset + 0x08) = 0xE12FFF10; // bx r0
*(u32*)((u8*)_cardiTaskThread + patchOffset + 0x14) = entryAddress;
}
}
void CardiTaskThreadPatch::ApplyThumbPatch(void* patch1Address) const
{
u32 entryAddress;
u32 patchOffset;
if (_patchVariant == PatchVariant::ThumbA || _patchVariant == PatchVariant::ThumbB)
{
if (_patchVariant == PatchVariant::ThumbB)
{
// [+0x60] = 28 1C 69 68
// adds r0, r5, #0
// ldr r1, [r5, #4]
patchOffset = 0x60;
}
else
{
// [+0x64] = 28 1C 69 68
// adds r0, r5, #0
// ldr r1, [r5, #4]
patchOffset = 0x64;
}
entryAddress = (u32)&__patch_carditaskthread_entry - (u32)SECTION_START(patch_carditaskthread) + (u32)patch1Address;
__patch_carditaskthread_mov_cardicommon_to_r4 = THUMB_MOVS_REG(THUMB_R4, THUMB_R5);
__patch_carditaskthread_failoffset = 0;
__patch_carditaskthread_successoffset = 0;
*(u16*)((u8*)_cardiTaskThread + patchOffset + 0x00) = THUMB_LDR_PC_IMM(THUMB_R1, 0);
*(u16*)((u8*)_cardiTaskThread + patchOffset + 0x02) = 0xE001; // jump over entryAddress
*(u32*)((u8*)_cardiTaskThread + patchOffset + 0x04) = entryAddress;
*(u16*)((u8*)_cardiTaskThread + patchOffset + 0x08) = THUMB_NOP;
}
else
{
switch (_patchVariant)
{
case PatchVariant::ThumbC:
{
// [+0x82] = 00 18 78 44
// adds r0, r0, r0
// add r0, pc
patchOffset = 0x82;
entryAddress = (u32)&__patch_carditaskthread_entry - (u32)SECTION_START(patch_carditaskthread) + (u32)patch1Address;
__patch_carditaskthread_mov_cardicommon_to_r4 = THUMB_NOP;
__patch_carditaskthread_successoffset = *(u16*)((u8*)_cardiTaskThread + patchOffset + 0x0E) + 8;
__patch_carditaskthread_failoffset = *(u16*)((u8*)_cardiTaskThread + patchOffset + 0x18) + 8;
*(u32*)((u8*)_cardiTaskThread + patchOffset + 0x06) = entryAddress;
break;
}
case PatchVariant::ThumbD:
{
// [+0x98] = 00 18 78 44
// adds r0, r0, r0
// add r0, pc
patchOffset = 0x98;
entryAddress = (u32)&__patch_carditaskthread_entry - (u32)SECTION_START(patch_carditaskthread) + (u32)patch1Address;
__patch_carditaskthread_mov_cardicommon_to_r4 = THUMB_NOP;
__patch_carditaskthread_successoffset = *(u16*)((u8*)_cardiTaskThread + patchOffset + 0x0E) + 8;
__patch_carditaskthread_failoffset = *(u16*)((u8*)_cardiTaskThread + patchOffset + 0x18) + 8;
*(u32*)((u8*)_cardiTaskThread + patchOffset + 0x08) = entryAddress;
break;
}
case PatchVariant::ThumbE:
{
// [+0x90] = 00 18 78 44
// adds r0, r0, r0
// add r0, pc
patchOffset = 0x90;
entryAddress = (u32)&__patch_carditaskthread_entry - (u32)SECTION_START(patch_carditaskthread) + (u32)patch1Address;
__patch_carditaskthread_mov_cardicommon_to_r4 = THUMB_NOP;
__patch_carditaskthread_successoffset = *(u16*)((u8*)_cardiTaskThread + patchOffset + 0x0C) + 9;
__patch_carditaskthread_failoffset = *(u16*)((u8*)_cardiTaskThread + patchOffset + 0x14) + 9;
*(u32*)((u8*)_cardiTaskThread + patchOffset + 0x08) = entryAddress;
break;
}
case PatchVariant::ThumbF:
{
// [+0x90] = 00 18 78 44
// adds r0, r0, r0
// add r0, pc
patchOffset = 0x90;
entryAddress = (u32)&__patch_carditaskthread_entry - (u32)SECTION_START(patch_carditaskthread) + (u32)patch1Address;
__patch_carditaskthread_mov_cardicommon_to_r4 = THUMB_MOVS_REG(THUMB_R4, THUMB_R5);
__patch_carditaskthread_successoffset = *(u16*)((u8*)_cardiTaskThread + patchOffset + 0x0C) + 9;
__patch_carditaskthread_failoffset = *(u16*)((u8*)_cardiTaskThread + patchOffset + 0x14) + 9;
*(u32*)((u8*)_cardiTaskThread + patchOffset + 0x08) = entryAddress;
break;
}
default:
{
LOG_FATAL("Unsupported thumb CARDi_TaskThread\n");
while (1);
break;
}
}
*(u16*)((u8*)_cardiTaskThread + patchOffset + 0x00) = THUMB_LDR_PC_IMM(THUMB_R1, 4);
*(u16*)((u8*)_cardiTaskThread + patchOffset + 0x02) = THUMB_MOV_HIREG(THUMB_HI_LR, THUMB_HI_PC);
*(u16*)((u8*)_cardiTaskThread + patchOffset + 0x04) = THUMB_BX(THUMB_R1);
}
}

3
arm9/source/patches/arm7/sdk2to4/CardiTaskThreadPatch.h
View File

@@ -31,5 +31,6 @@ private:
u32* _cardiTaskThread = nullptr;
PatchVariant _patchVariant = PatchVariant::None;
bool CheckSignature(const PatchContext& patchContext, const FunctionSignature& signature);
void ApplyArmPatch(void* patch1Address) const;
void ApplyThumbPatch(void* patch1Address) const;
};