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Only setup homebrew bootstub when launcherPath is set

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This commit is contained in:
Gericom
2026-01-10 16:35:00 +01:00
parent a17194dc67
commit 0ba88b55b7
4 changed files with 31 additions and 32 deletions
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6
arm7/source/header.cpp
View File

@@ -10,9 +10,5 @@ extern u8 __bss_size[];
pload_header7_t gLoaderHeader
{
.entryPoint = (void*)&_start,
.apiVersion = PICO_LOADER_API_VERSION,
.v2 =
{
.launcherPath = "/_picoboot.nds"
}
.apiVersion = PICO_LOADER_API_VERSION
};

24
arm7/source/loader/NdsLoader.cpp
View File

@@ -436,17 +436,21 @@ void NdsLoader::InsertArgv()
void NdsLoader::HandleHomebrewPatching()
{
sendToArm9(IPC_COMMAND_ARM9_APPLY_HOMEBREW_PATCHES);
sendToArm9(16 * 1024); // required dldi space
void* dldiSpace = (void*)receiveFromArm9();
char* launcherPath = (char*)receiveFromArm9();
if (dldiSpace != nullptr)
if (_launcherPath != nullptr && _launcherPath[0] != 0)
{
dldi_copyTo(dldiSpace);
}
if (launcherPath != nullptr)
{
strncpy(launcherPath, _launcherPath, 256);
sendToArm9(IPC_COMMAND_ARM9_SETUP_HOMEBREW_BOOTSTUB);
sendToArm9(16 * 1024); // required dldi space
void* dldiSpace = (void*)receiveFromArm9();
char* launcherPath = (char*)receiveFromArm9();
if (dldiSpace != nullptr)
{
dldi_copyTo(dldiSpace);
}
if (launcherPath != nullptr)
{
strncpy(launcherPath, _launcherPath, 256);
launcherPath[255] = 0;
}
}
}

7
arm9/source/main.cpp
View File

@@ -233,9 +233,8 @@ static void handleBootCommand()
bootArm9();
}
static void handleApplyHomebrewPatches(u32 dldiRequiredSpace)
static void handleSetupHomebrewBootstub(u32 dldiRequiredSpace)
{
// Insert bootstub
PatchHeap patchHeap;
PatchCodeCollection patchCodeCollection;
void* patchSpace = (void*)&HOMEBREW_BOOTSTUB[1];
@@ -328,10 +327,10 @@ static void handleArm7Command(u32 command)
handleBootCommand();
break;
}
case IPC_COMMAND_ARM9_APPLY_HOMEBREW_PATCHES:
case IPC_COMMAND_ARM9_SETUP_HOMEBREW_BOOTSTUB:
{
u32 dldiRequiredSpace = receiveFromArm7();
handleApplyHomebrewPatches(dldiRequiredSpace);
handleSetupHomebrewBootstub(dldiRequiredSpace);
break;
}
}

26
common/ipcCommands.h
View File

@@ -1,15 +1,15 @@
#pragma once
#define IPC_COMMAND_ARM9_WRAM_CONFIG 1
#define IPC_COMMAND_ARM9_CLEAR_MAIN_MEM 2
#define IPC_COMMAND_ARM9_APPLY_PATCHES 3
#define IPC_COMMAND_ARM9_APPLY_ARM7_PATCHES 4
#define IPC_COMMAND_ARM9_SET_AP_INFO 5
#define IPC_COMMAND_ARM9_SET_ROM_FILE_INFO 6
#define IPC_COMMAND_ARM9_INITIALIZE_SD_CARD 8
#define IPC_COMMAND_ARM9_INITIALIZE_LOADER_INFO 9
#define IPC_COMMAND_ARM9_GET_SD_FUNCTIONS 0xA
#define IPC_COMMAND_ARM9_DISPLAY_ERROR 0xB
#define IPC_COMMAND_ARM9_SWITCH_TO_DS_MODE 0xD
#define IPC_COMMAND_ARM9_BOOT 0xF
#define IPC_COMMAND_ARM9_APPLY_HOMEBREW_PATCHES 0x10
#define IPC_COMMAND_ARM9_WRAM_CONFIG 1
#define IPC_COMMAND_ARM9_CLEAR_MAIN_MEM 2
#define IPC_COMMAND_ARM9_APPLY_PATCHES 3
#define IPC_COMMAND_ARM9_APPLY_ARM7_PATCHES 4
#define IPC_COMMAND_ARM9_SET_AP_INFO 5
#define IPC_COMMAND_ARM9_SET_ROM_FILE_INFO 6
#define IPC_COMMAND_ARM9_INITIALIZE_SD_CARD 8
#define IPC_COMMAND_ARM9_INITIALIZE_LOADER_INFO 9
#define IPC_COMMAND_ARM9_GET_SD_FUNCTIONS 0xA
#define IPC_COMMAND_ARM9_DISPLAY_ERROR 0xB
#define IPC_COMMAND_ARM9_SWITCH_TO_DS_MODE 0xD
#define IPC_COMMAND_ARM9_BOOT 0xF
#define IPC_COMMAND_ARM9_SETUP_HOMEBREW_BOOTSTUB 0x10