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Improved handling of module params and locating of unused libsyscall space to support rom hacks that repack roms in unusual ways. Fixes #129

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Gericom
2026-02-01 11:04:59 +01:00
parent f5a8498e08
commit df614fb89f
4 changed files with 100 additions and 93 deletions
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9
arm9/source/SecureSysCallsUnusedSpaceLocator.cpp
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@@ -78,8 +78,7 @@ const u16* SecureSysCallsUnusedSpaceLocator::FindPattern(const u16* data, u32 le
void SecureSysCallsUnusedSpaceLocator::FindUnusedSpace(const nds_header_ntr_t* romHeader, PatchHeap& patchHeap) const
{
if (romHeader->arm9RomOffset != 0x4000)
return;
// NOTE: We can not check if arm9RomOffset == 0x4000, because some rom hacks repack the rom in unusual ways.
u32 secureStart = romHeader->arm9LoadAddress;
@@ -91,6 +90,12 @@ void SecureSysCallsUnusedSpaceLocator::FindUnusedSpace(const nds_header_ntr_t* r
return;
}
if (((u32*)secureStart)[0] != 0xE7FFDEFF || ((u32*)secureStart)[1] != 0xE7FFDEFF)
{
LOG_ERROR("No secure area space found\n");
return;
}
std::array<svc_pattern_t, sSvcPatterns.size()> patternLocations;
for (u32 i = 0; i < sSvcPatterns.size(); i++)