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Attempt to improve handling of arm signatures in CardiTaskThreadPatch

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This commit is contained in:
Gericom
2025-12-25 13:25:46 +01:00
parent 19cce5960b
commit e58a55b81c
2 changed files with 85 additions and 61 deletions
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132
arm9/source/patches/arm7/sdk2to4/CardiTaskThreadPatch.cpp
View File

@@ -14,31 +14,37 @@
#include "thumbInstructions.h"
#include "CardiTaskThreadPatch.h"
static constexpr auto sSignaturesArm = std::to_array<const FunctionSignature>
struct CardiTaskThreadSignature
{
FunctionSignature signature;
CardiTaskThreadPatch::PatchVariant patchVariant;
};
static constexpr auto sSignaturesArm = std::to_array<const CardiTaskThreadSignature>
({
{ (const u32[]) { 0xE92D4FF0u, 0xE24DD004u, 0xE59FA108u, 0xE28A5040u }, 0x020029A0, 0x02005015 },
{ (const u32[]) { 0xE92D4FF0u, 0xE24DD004u, 0xE59FA10Cu, 0xE28A5040u }, 0x02004F50, 0x02017532 },
{ (const u32[]) { 0xE92D4FF0u, 0xE24DD004u, 0xE59F91DCu, 0xE2895044u }, 0x02017532, 0x02017532 },
{ (const u32[]) { 0xE92D4FF0u, 0xE24DD004u, 0xE59F91E0u, 0xE2895044u }, 0x02017532, 0x02027534 },
{ (const u32[]) { 0xE92D4FF0u, 0xE24DD004u, 0xE59F91E0u, 0xE2895048u }, 0x030028A0, 0x03004E86 },
{ (const u32[]) { 0xE92D4FF0u, 0xE24DD004u, 0xE59F91D4u, 0xE2895048u }, 0x03004F4C, 0x03017534 },
{ (const u32[]) { 0xE92D4FF0u, 0xE24DD004u, 0xE59F91F8u, 0xE2895048u }, 0x03017530, 0x04017530 },
{ (const u32[]) { 0xE92D41F0u, 0xE59F4200u, 0xE3A05000u, 0xEBFFEADCu }, 0x04002774, 0x04017533 },
{ (const u32[]) { 0xE92D41F0u, 0xE59F4200u, 0xE3A05000u, 0xEBFFEACEu }, 0x04007531, 0x04007531 },
{ (const u32[]) { 0xE92D41F0u, 0xE59F4200u, 0xE3A05000u, 0xEBFFEABFu }, 0x04007530, 0x04007531 },
{ (const u32[]) { 0xE92D41F0u, 0xE59F4200u, 0xE3A05000u, 0xEBFFEAAAu }, 0x04017530, 0x04017533 },
{ (const u32[]) { 0xE92D41F0u, 0xE59F4200u, 0xE3A05000u, 0xEBFFEA94u }, 0x04017530, 0x04017533 },
{ (const u32[]) { 0xE92D41F0u, 0xE59F4200u, 0xE3A05000u, 0xEBFFEA8Du }, 0x04017531, 0x04017533 },
{ (const u32[]) { 0xE92D41F0u, 0xE59F4200u, 0xE3A05000u, 0xEBFFEA77u }, 0x04017533, 0x04017533 },
{ (const u32[]) { 0xE92D41F0u, 0xE59F4224u, 0xE3A05000u, 0xEBFFEA70u }, 0x04027530, 0x04027539 },
{ (const u32[]) { 0xE92D41F0u, 0xE59F4224u, 0xE3A05000u, 0xEBFFEA8Du }, 0x04027530, 0x04027539 },
{ (const u32[]) { 0xE92D41F0u, 0xE59F4224u, 0xE3A05000u, 0xEBFFEA6Cu }, 0x04027531, 0x04027531 },
{ (const u32[]) { 0xE92D41F0u, 0xE59F4224u, 0xE3A05000u, 0xEBFFEA77u }, 0x04027531, 0x04027539 },
{ (const u32[]) { 0xE92D41F0u, 0xE59F4224u, 0xE3A05000u, 0xEBFFEA5Au }, 0x04027533, 0x04027533 },
{ (const u32[]) { 0xE92D41F0u, 0xE59F4200u, 0xE3A05000u, 0xEBFFFAD7u }, 0x03017531, 0x03017531 },
{ (const u32[]) { 0xE92D41F0u, 0xE59F4200u, 0xE3A05000u, 0xEBFFFAA5u }, 0x03027531, 0x03027531 },
{ (const u32[]) { 0xE92D41F0u, 0xE59F4200u, 0xE3A05000u, 0xEBFFEADBu }, 0x03027531, 0x03027531 },
{ (const u32[]) { 0xE92D41F0u, 0xE59F4224u, 0xE3A05000u, 0xEBFFEA68u }, 0x04027533, 0x04027533 }
{ { (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 }
});
static constexpr auto sSignaturesThumb = std::to_array<const FunctionSignature>
@@ -59,18 +65,10 @@ bool CardiTaskThreadPatch::FindPatchTarget(PatchContext& patchContext)
{
for (const auto& signature : sSignaturesArm)
{
if (CheckSignature(patchContext, signature))
if (CheckSignature(patchContext, signature.signature))
{
if (signature.GetPattern()[2] == 0xE59F91DCu)
{
_peach = true;
}
else if (signature.GetPattern()[3] == 0xEBFFFAD7u
|| signature.GetPattern()[3] == 0xEBFFFAA5u
|| signature.GetPattern()[3] == 0xEBFFEADBu)
{
_pokemonDownloader = true;
}
_thumb = false;
_patchVariant = signature.patchVariant;
break;
}
}
@@ -220,16 +218,20 @@ void CardiTaskThreadPatch::ApplyPatch(PatchContext& patchContext)
}
else
{
if (patchContext.GetSdkVersion() < 0x2020000 && !_peach)
if (_patchVariant == PatchVariant::A || _patchVariant == PatchVariant::B)
{
// uses a table dispatch
//0xA4 = ldr r1,= table
__patch_carditaskthread_failoffset = 4;
__patch_carditaskthread_successoffset = 4;
if (patchContext.GetSdkVersion() >= 0x2005015)//0x2007532)//0x2012774)
if (_patchVariant == PatchVariant::B)
{
patchOffset = 0xA4;
}
else
{
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);
@@ -241,29 +243,41 @@ void CardiTaskThreadPatch::ApplyPatch(PatchContext& patchContext)
}
else
{
if (patchContext.GetSdkVersion() >= 0x4027531)
switch (_patchVariant)
{
patchOffset = 0xA8;
entryAddress = (u32)&__patch_carditaskthread_entry_sdk4 - (u32)SECTION_START(patch_carditaskthread) + (u32)patch1Address;
__patch_carditaskthread_mov_cardicommon_to_r4 = THUMB_NOP;
}
else if (patchContext.GetSdkVersion() >= 0x4007530 || _pokemonDownloader)
{
patchOffset = 0xA8;
entryAddress = (u32)&__patch_carditaskthread_entry - (u32)SECTION_START(patch_carditaskthread) + (u32)patch1Address;
__patch_carditaskthread_mov_cardicommon_to_r4 = THUMB_NOP;
}
else if (patchContext.GetSdkVersion() >= 0x3017531)
{
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);
}
else
{
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);
case PatchVariant::C:
{
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:
{
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:
{
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:
{
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

14
arm9/source/patches/arm7/sdk2to4/CardiTaskThreadPatch.h
View File

@@ -7,14 +7,24 @@ class FunctionSignature;
class CardiTaskThreadPatch : public Patch
{
public:
enum class PatchVariant : u16
{
None,
A,
B,
C,
D,
E,
F
};
bool FindPatchTarget(PatchContext& patchContext) override;
void ApplyPatch(PatchContext& patchContext) override;
private:
u32* _cardiTaskThread = nullptr;
u16 _thumb = false;
u16 _peach = false;
u16 _pokemonDownloader = false;
PatchVariant _patchVariant = PatchVariant::None;
bool CheckSignature(const PatchContext& patchContext, const FunctionSignature& signature);
};