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Boot: Add default exception handlers 

Some homebrew expect exception handlers to be present -- which is
almost always the case on console, since most of the time homebrew are
launched from either a libogc or SDK title) -- and break if they are
not. To fix this, we just need to include default, dummy handlers.
This commit is contained in:
Léo Lam 2017-12-06 21:14:59 +01:00
parent 520039ab28
commit 3dd777be70
1 changed files with 13 additions and 0 deletions
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13
Source/Core/Core/Boot/Boot.cpp
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@ -282,6 +282,18 @@ static void SetDefaultDisc()
SetDisc(DiscIO::CreateVolumeFromFilename(config.m_strDefaultISO)); SetDisc(DiscIO::CreateVolumeFromFilename(config.m_strDefaultISO));
} }
static void CopyDefaultExceptionHandlers()
{
constexpr u32 EXCEPTION_HANDLER_ADDRESSES[] = {0x00000100, 0x00000200, 0x00000300, 0x00000400,
0x00000500, 0x00000600, 0x00000700, 0x00000800,
0x00000900, 0x00000C00, 0x00000D00, 0x00000F00,
0x00001300, 0x00001400, 0x00001700};
constexpr u32 RFI_INSTRUCTION = 0x4C000064;
for (const u32 address : EXCEPTION_HANDLER_ADDRESSES)
Memory::Write_U32(RFI_INSTRUCTION, address);
}
// Third boot step after BootManager and Core. See Call schedule in BootManager.cpp // Third boot step after BootManager and Core. See Call schedule in BootManager.cpp
bool CBoot::BootUp(std::unique_ptr<BootParameters> boot) bool CBoot::BootUp(std::unique_ptr<BootParameters> boot)
{ {
@ -332,6 +344,7 @@ bool CBoot::BootUp(std::unique_ptr<BootParameters> boot)
SetupMSR(); SetupMSR();
SetupBAT(config.bWii); SetupBAT(config.bWii);
CopyDefaultExceptionHandlers();
if (config.bWii) if (config.bWii)
{ {