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Attempt to improve handling of thumb signatures in CardiTaskThreadPatch

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This commit is contained in:
Gericom
2025-12-26 12:39:10 +01:00
parent e58a55b81c
commit c8898ff13c
2 changed files with 84 additions and 60 deletions
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125
arm9/source/patches/arm7/sdk2to4/CardiTaskThreadPatch.cpp
View File

@@ -22,43 +22,43 @@ struct CardiTaskThreadSignature
static constexpr auto sSignaturesArm = std::to_array<const CardiTaskThreadSignature>
({
{ { (const u32[]) { 0xE92D4FF0u, 0xE24DD004u, 0xE59FA108u, 0xE28A5040u }, 0x020029A0, 0x02005015 }, CardiTaskThreadPatch::PatchVariant::A },
{ { (const u32[]) { 0xE92D4FF0u, 0xE24DD004u, 0xE59FA10Cu, 0xE28A5040u }, 0x02004F50, 0x02017532 }, CardiTaskThreadPatch::PatchVariant::B },
{ { (const u32[]) { 0xE92D4FF0u, 0xE24DD004u, 0xE59F91DCu, 0xE2895044u }, 0x02017532, 0x02017532 }, CardiTaskThreadPatch::PatchVariant::C },
{ { (const u32[]) { 0xE92D4FF0u, 0xE24DD004u, 0xE59F91E0u, 0xE2895044u }, 0x02017532, 0x02027534 }, CardiTaskThreadPatch::PatchVariant::C },
{ { (const u32[]) { 0xE92D4FF0u, 0xE24DD004u, 0xE59F91E0u, 0xE2895048u }, 0x030028A0, 0x03004E86 }, CardiTaskThreadPatch::PatchVariant::C },
{ { (const u32[]) { 0xE92D4FF0u, 0xE24DD004u, 0xE59F91D4u, 0xE2895048u }, 0x03004F4C, 0x03017534 }, CardiTaskThreadPatch::PatchVariant::C },
{ { (const u32[]) { 0xE92D4FF0u, 0xE24DD004u, 0xE59F91F8u, 0xE2895048u }, 0x03017530, 0x04017530 }, CardiTaskThreadPatch::PatchVariant::D },
{ { (const u32[]) { 0xE92D41F0u, 0xE59F4200u, 0xE3A05000u, 0xEBFFEADCu }, 0x04002774, 0x04017533 }, CardiTaskThreadPatch::PatchVariant::E },
{ { (const u32[]) { 0xE92D41F0u, 0xE59F4200u, 0xE3A05000u, 0xEBFFEACEu }, 0x04007531, 0x04007531 }, CardiTaskThreadPatch::PatchVariant::E },
{ { (const u32[]) { 0xE92D41F0u, 0xE59F4200u, 0xE3A05000u, 0xEBFFEABFu }, 0x04007530, 0x04007531 }, CardiTaskThreadPatch::PatchVariant::E },
{ { (const u32[]) { 0xE92D41F0u, 0xE59F4200u, 0xE3A05000u, 0xEBFFEAAAu }, 0x04017530, 0x04017533 }, CardiTaskThreadPatch::PatchVariant::E },
{ { (const u32[]) { 0xE92D41F0u, 0xE59F4200u, 0xE3A05000u, 0xEBFFEA94u }, 0x04017530, 0x04017533 }, CardiTaskThreadPatch::PatchVariant::E },
{ { (const u32[]) { 0xE92D41F0u, 0xE59F4200u, 0xE3A05000u, 0xEBFFEA8Du }, 0x04017531, 0x04017533 }, CardiTaskThreadPatch::PatchVariant::E },
{ { (const u32[]) { 0xE92D41F0u, 0xE59F4200u, 0xE3A05000u, 0xEBFFEA77u }, 0x04017533, 0x04017533 }, CardiTaskThreadPatch::PatchVariant::E },
{ { (const u32[]) { 0xE92D41F0u, 0xE59F4224u, 0xE3A05000u, 0xEBFFEA70u }, 0x04027530, 0x04027539 }, CardiTaskThreadPatch::PatchVariant::F },
{ { (const u32[]) { 0xE92D41F0u, 0xE59F4224u, 0xE3A05000u, 0xEBFFEA8Du }, 0x04027530, 0x04027539 }, CardiTaskThreadPatch::PatchVariant::F },
{ { (const u32[]) { 0xE92D41F0u, 0xE59F4224u, 0xE3A05000u, 0xEBFFEA6Cu }, 0x04027531, 0x04027531 }, CardiTaskThreadPatch::PatchVariant::F },
{ { (const u32[]) { 0xE92D41F0u, 0xE59F4224u, 0xE3A05000u, 0xEBFFEA77u }, 0x04027531, 0x04027539 }, CardiTaskThreadPatch::PatchVariant::F },
{ { (const u32[]) { 0xE92D41F0u, 0xE59F4224u, 0xE3A05000u, 0xEBFFEA5Au }, 0x04027533, 0x04027533 }, CardiTaskThreadPatch::PatchVariant::F },
{ { (const u32[]) { 0xE92D41F0u, 0xE59F4200u, 0xE3A05000u, 0xEBFFFAD7u }, 0x03017531, 0x03017531 }, CardiTaskThreadPatch::PatchVariant::E },
{ { (const u32[]) { 0xE92D41F0u, 0xE59F4200u, 0xE3A05000u, 0xEBFFFAA5u }, 0x03027531, 0x03027531 }, CardiTaskThreadPatch::PatchVariant::E },
{ { (const u32[]) { 0xE92D41F0u, 0xE59F4200u, 0xE3A05000u, 0xEBFFEADBu }, 0x03027531, 0x03027531 }, CardiTaskThreadPatch::PatchVariant::E },
{ { (const u32[]) { 0xE92D41F0u, 0xE59F4224u, 0xE3A05000u, 0xEBFFEA68u }, 0x04027533, 0x04027533 }, CardiTaskThreadPatch::PatchVariant::F }
{ { (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 },
{ { (const u32[]) { 0xE92D4FF0u, 0xE24DD004u, 0xE59F91E0u, 0xE2895044u }, 0x02017532, 0x02027534 }, CardiTaskThreadPatch::PatchVariant::ArmC },
{ { (const u32[]) { 0xE92D4FF0u, 0xE24DD004u, 0xE59F91E0u, 0xE2895048u }, 0x030028A0, 0x03004E86 }, CardiTaskThreadPatch::PatchVariant::ArmC },
{ { (const u32[]) { 0xE92D4FF0u, 0xE24DD004u, 0xE59F91D4u, 0xE2895048u }, 0x03004F4C, 0x03017534 }, CardiTaskThreadPatch::PatchVariant::ArmC },
{ { (const u32[]) { 0xE92D4FF0u, 0xE24DD004u, 0xE59F91F8u, 0xE2895048u }, 0x03017530, 0x04017530 }, CardiTaskThreadPatch::PatchVariant::ArmD },
{ { (const u32[]) { 0xE92D41F0u, 0xE59F4200u, 0xE3A05000u, 0xEBFFEADCu }, 0x04002774, 0x04017533 }, CardiTaskThreadPatch::PatchVariant::ArmE },
{ { (const u32[]) { 0xE92D41F0u, 0xE59F4200u, 0xE3A05000u, 0xEBFFEACEu }, 0x04007531, 0x04007531 }, CardiTaskThreadPatch::PatchVariant::ArmE },
{ { (const u32[]) { 0xE92D41F0u, 0xE59F4200u, 0xE3A05000u, 0xEBFFEABFu }, 0x04007530, 0x04007531 }, CardiTaskThreadPatch::PatchVariant::ArmE },
{ { (const u32[]) { 0xE92D41F0u, 0xE59F4200u, 0xE3A05000u, 0xEBFFEAAAu }, 0x04017530, 0x04017533 }, CardiTaskThreadPatch::PatchVariant::ArmE },
{ { (const u32[]) { 0xE92D41F0u, 0xE59F4200u, 0xE3A05000u, 0xEBFFEA94u }, 0x04017530, 0x04017533 }, CardiTaskThreadPatch::PatchVariant::ArmE },
{ { (const u32[]) { 0xE92D41F0u, 0xE59F4200u, 0xE3A05000u, 0xEBFFEA8Du }, 0x04017531, 0x04017533 }, CardiTaskThreadPatch::PatchVariant::ArmE },
{ { (const u32[]) { 0xE92D41F0u, 0xE59F4200u, 0xE3A05000u, 0xEBFFEA77u }, 0x04017533, 0x04017533 }, CardiTaskThreadPatch::PatchVariant::ArmE },
{ { (const u32[]) { 0xE92D41F0u, 0xE59F4224u, 0xE3A05000u, 0xEBFFEA70u }, 0x04027530, 0x04027539 }, CardiTaskThreadPatch::PatchVariant::ArmF },
{ { (const u32[]) { 0xE92D41F0u, 0xE59F4224u, 0xE3A05000u, 0xEBFFEA8Du }, 0x04027530, 0x04027539 }, CardiTaskThreadPatch::PatchVariant::ArmF },
{ { (const u32[]) { 0xE92D41F0u, 0xE59F4224u, 0xE3A05000u, 0xEBFFEA6Cu }, 0x04027531, 0x04027531 }, CardiTaskThreadPatch::PatchVariant::ArmF },
{ { (const u32[]) { 0xE92D41F0u, 0xE59F4224u, 0xE3A05000u, 0xEBFFEA77u }, 0x04027531, 0x04027539 }, CardiTaskThreadPatch::PatchVariant::ArmF },
{ { (const u32[]) { 0xE92D41F0u, 0xE59F4224u, 0xE3A05000u, 0xEBFFEA5Au }, 0x04027533, 0x04027533 }, CardiTaskThreadPatch::PatchVariant::ArmF },
{ { (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 }
});
static constexpr auto sSignaturesThumb = std::to_array<const FunctionSignature>
static constexpr auto sSignaturesThumb = std::to_array<const CardiTaskThreadSignature>
({
{ (const u32[]) { 0xB081B5F0u, 0x1C2E4D2Du, 0x27103640u, 0xF7FC2400u }, 0x02004FB0, 0x02004FB4 },
{ (const u32[]) { 0xB081B5F0u, 0x1C2E4D2Bu, 0x27103640u, 0xF7FC2400u }, 0x02007531, 0x02017532 },
{ (const u32[]) { 0xB081B5F0u, 0x1C264C57u, 0x27103644u, 0xF7FC2500u }, 0x02027532, 0x02027535 },
{ (const u32[]) { 0xB081B5F0u, 0x1C264C55u, 0x27103648u, 0xF7FC2500u }, 0x03007530, 0x03012776 },
{ (const u32[]) { 0xB081B5F0u, 0x1C264C5Cu, 0x27033648u, 0xF7FC2500u }, 0x03017531, 0x03027532 },
{ (const u32[]) { 0x4C5CB5F8u, 0xF7FC2500u, 0x1C26FAB3u, 0x36481C07u }, 0x04007531, 0x04007531 },
{ (const u32[]) { 0x4C5CB5F8u, 0xF7FC2500u, 0x1C26FA97u, 0x36481C07u }, 0x04007531, 0x04007531 },
{ (const u32[]) { 0x4C5CB5F8u, 0xF7FC2500u, 0x1C26FA4Fu, 0x36481C07u }, 0x04017530, 0x04017533 },
{ (const u32[]) { 0x4C5CB5F8u, 0xF7FC2500u, 0x1C26FA23u, 0x36481C07u }, 0x04017531, 0x04017531 },
{ (const u32[]) { 0x4D62B5F8u, 0xF7FC2400u, 0x1C2EFA2Du, 0x36481C07u }, 0x04027531, 0x04027539 }
{ { (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 },
{ { (const u32[]) { 0xB081B5F0u, 0x1C264C55u, 0x27103648u, 0xF7FC2500u }, 0x03007530, 0x03012776 }, CardiTaskThreadPatch::PatchVariant::ThumbC },
{ { (const u32[]) { 0xB081B5F0u, 0x1C264C5Cu, 0x27033648u, 0xF7FC2500u }, 0x03017531, 0x03027532 }, CardiTaskThreadPatch::PatchVariant::ThumbD },
{ { (const u32[]) { 0x4C5CB5F8u, 0xF7FC2500u, 0x1C26FAB3u, 0x36481C07u }, 0x04007531, 0x04007531 }, CardiTaskThreadPatch::PatchVariant::ThumbE },
{ { (const u32[]) { 0x4C5CB5F8u, 0xF7FC2500u, 0x1C26FA97u, 0x36481C07u }, 0x04007531, 0x04007531 }, CardiTaskThreadPatch::PatchVariant::ThumbE },
{ { (const u32[]) { 0x4C5CB5F8u, 0xF7FC2500u, 0x1C26FA4Fu, 0x36481C07u }, 0x04017530, 0x04017533 }, CardiTaskThreadPatch::PatchVariant::ThumbE },
{ { (const u32[]) { 0x4C5CB5F8u, 0xF7FC2500u, 0x1C26FA23u, 0x36481C07u }, 0x04017531, 0x04017531 }, CardiTaskThreadPatch::PatchVariant::ThumbE },
{ { (const u32[]) { 0x4D62B5F8u, 0xF7FC2400u, 0x1C2EFA2Du, 0x36481C07u }, 0x04027531, 0x04027539 }, CardiTaskThreadPatch::PatchVariant::ThumbF }
});
bool CardiTaskThreadPatch::FindPatchTarget(PatchContext& patchContext)
@@ -67,7 +67,6 @@ bool CardiTaskThreadPatch::FindPatchTarget(PatchContext& patchContext)
{
if (CheckSignature(patchContext, signature.signature))
{
_thumb = false;
_patchVariant = signature.patchVariant;
break;
}
@@ -77,9 +76,9 @@ bool CardiTaskThreadPatch::FindPatchTarget(PatchContext& patchContext)
{
for (const auto& signature : sSignaturesThumb)
{
if (CheckSignature(patchContext, signature))
if (CheckSignature(patchContext, signature.signature))
{
_thumb = true;
_patchVariant = signature.patchVariant;
break;
}
}
@@ -96,8 +95,9 @@ bool CardiTaskThreadPatch::FindPatchTarget(PatchContext& patchContext)
void CardiTaskThreadPatch::ApplyPatch(PatchContext& patchContext)
{
if (!_cardiTaskThread)
{
return;
//0xA4 = ADDLS PC, PC, R0,LSL#2
}
u32 patch1Size = SECTION_SIZE(patch_carditaskthread);
void* patch1Address = patchContext.GetPatchHeap().Alloc(patch1Size);
@@ -143,10 +143,13 @@ void CardiTaskThreadPatch::ApplyPatch(PatchContext& patchContext)
u32 entryAddress;
u32 patchOffset;
if (_thumb)
if (_patchVariant >= PatchVariant::ThumbA)
{
if (patchContext.GetSdkVersion() >= 0x4027531)
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);
@@ -158,8 +161,11 @@ void CardiTaskThreadPatch::ApplyPatch(PatchContext& patchContext)
*(u16*)((u8*)_cardiTaskThread + patchOffset + 0x04) = THUMB_BX(THUMB_R1);
*(u32*)((u8*)_cardiTaskThread + patchOffset + 0x08) = entryAddress;
}
else if (patchContext.GetSdkVersion() >= 0x4007530)
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;
@@ -171,8 +177,11 @@ void CardiTaskThreadPatch::ApplyPatch(PatchContext& patchContext)
*(u16*)((u8*)_cardiTaskThread + patchOffset + 0x04) = THUMB_BX(THUMB_R1);
*(u32*)((u8*)_cardiTaskThread + patchOffset + 0x08) = entryAddress;
}
else if (patchContext.GetSdkVersion() >= 0x3027531)
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;
@@ -184,9 +193,11 @@ void CardiTaskThreadPatch::ApplyPatch(PatchContext& patchContext)
*(u16*)((u8*)_cardiTaskThread + patchOffset + 0x04) = THUMB_BX(THUMB_R1);
*(u32*)((u8*)_cardiTaskThread + patchOffset + 0x08) = entryAddress;
}
else if (patchContext.GetSdkVersion() >= 0x3012776
|| (patchContext.GetSdkVersion() >= 0x2027532 && patchContext.GetSdkVersion() <= 0x2027535))
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;
@@ -198,9 +209,12 @@ void CardiTaskThreadPatch::ApplyPatch(PatchContext& patchContext)
*(u16*)((u8*)_cardiTaskThread + patchOffset + 0x04) = THUMB_BX(THUMB_R1);
*(u32*)((u8*)_cardiTaskThread + patchOffset + 0x06) = entryAddress;
}
else if (patchContext.GetSdkVersion() >= 0x2004FB0)
else if (_patchVariant == PatchVariant::ThumbA || _patchVariant == PatchVariant::ThumbB)//patchContext.GetSdkVersion() >= 0x2004FB0)
{
patchOffset = patchContext.GetSdkVersion() >= 0x2007531 ? 0x60 : 0x64;
// [+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;
@@ -218,18 +232,19 @@ void CardiTaskThreadPatch::ApplyPatch(PatchContext& patchContext)
}
else
{
if (_patchVariant == PatchVariant::A || _patchVariant == PatchVariant::B)
if (_patchVariant == PatchVariant::ArmA || _patchVariant == PatchVariant::ArmB)
{
// uses a table dispatch
//0xA4 = ldr r1,= table
__patch_carditaskthread_failoffset = 4;
__patch_carditaskthread_successoffset = 4;
if (_patchVariant == PatchVariant::B)
if (_patchVariant == PatchVariant::ArmB)
{
// [+0xA4] = 0xE59F1074 = ldr r1,= table
patchOffset = 0xA4;
}
else
{
// [+0xA0] = 0xE59F1074 = ldr r1,= table
patchOffset = 0xA0;
}
@@ -245,29 +260,33 @@ void CardiTaskThreadPatch::ApplyPatch(PatchContext& patchContext)
{
switch (_patchVariant)
{
case PatchVariant::C:
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::D:
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::E:
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::F:
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;

19
arm9/source/patches/arm7/sdk2to4/CardiTaskThreadPatch.h
View File

@@ -10,12 +10,18 @@ public:
enum class PatchVariant : u16
{
None,
A,
B,
C,
D,
E,
F
ArmA,
ArmB,
ArmC,
ArmD,
ArmE,
ArmF,
ThumbA,
ThumbB,
ThumbC,
ThumbD,
ThumbE,
ThumbF
};
bool FindPatchTarget(PatchContext& patchContext) override;
@@ -23,7 +29,6 @@ public:
private:
u32* _cardiTaskThread = nullptr;
u16 _thumb = false;
PatchVariant _patchVariant = PatchVariant::None;
bool CheckSignature(const PatchContext& patchContext, const FunctionSignature& signature);