LowLevel/Luma3DS-3GX
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Minor cleanup, added error when writing an exception dump fails

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Aurora
2016-09-06 19:17:45 +02:00
parent 96a274bf7d
commit 6686e4add7
5 changed files with 31 additions and 35 deletions
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1
exceptions/arm11/source/handlers.h
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@@ -42,7 +42,6 @@ typedef struct __attribute__((packed))
void __attribute__((noreturn)) mcuReboot(void);
void cleanInvalidateDCacheAndDMB(void);
bool cannotAccessVA(const void *address);
void FIQHandler(void);
void undefinedInstructionHandler(void);
void dataAbortHandler(void);

15
exceptions/arm11/source/mainHandler.c
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@@ -43,7 +43,7 @@ static u32 __attribute__((noinline)) copyMemory(void *dst, const void *src, u32
return size;
}
void __attribute__((noreturn)) mainHandler(u32 regs[REG_DUMP_SIZE / 4], u32 type, u32 cpuId)
void __attribute__((noreturn)) mainHandler(u32 *regs, u32 type, u32 cpuId)
{
ExceptionDumpHeader dumpHeader;
@@ -64,7 +64,6 @@ void __attribute__((noreturn)) mainHandler(u32 regs[REG_DUMP_SIZE / 4], u32 type
dumpHeader.registerDumpSize = REG_DUMP_SIZE;
dumpHeader.codeDumpSize = CODE_DUMP_SIZE;
dumpHeader.additionalDataSize = 0;
//Dump registers
//Current order of saved regs: dfsr, ifsr, far, fpexc, fpinst, fpinst2, cpsr, pc, r8-r12, sp, lr, r0-r7
@@ -90,23 +89,21 @@ void __attribute__((noreturn)) mainHandler(u32 regs[REG_DUMP_SIZE / 4], u32 type
dumpHeader.stackDumpSize = copyMemory(final, (const void *)registerDump[13], 0x1000 - (registerDump[13] & 0xFFF), 1);
final += dumpHeader.stackDumpSize;
vu8 *currentKProcess = cannotAccessVA((u8 *)0xFFFF9004) ? NULL : *(vu8 **)0xFFFF9004;
vu8 *currentKCodeSet = currentKProcess != NULL ? *(vu8 **)(currentKProcess + CODESET_OFFSET) : NULL;
if(currentKCodeSet != NULL)
if(!cannotAccessVA((u8 *)0xFFFF9004))
{
vu64 *additionalData = (vu64 *)final;
dumpHeader.additionalDataSize = 16;
vu8 *currentKCodeSet = *(vu8 **)(*(vu8 **)0xFFFF9004 + CODESET_OFFSET); //currentKProcess + CodeSet
additionalData[0] = *(vu64 *)(currentKCodeSet + 0x50); //Process name
additionalData[1] = *(vu64 *)(currentKCodeSet + 0x5C); //Title ID
}
else dumpHeader.additionalDataSize = 0;
//Copy header (actually optimized by the compiler)
final = (u8 *)FINAL_BUFFER;
dumpHeader.totalSize = sizeof(ExceptionDumpHeader) + dumpHeader.registerDumpSize + dumpHeader.codeDumpSize + dumpHeader.stackDumpSize + dumpHeader.additionalDataSize;
*(ExceptionDumpHeader *)final = dumpHeader;
//Copy header (actually optimized by the compiler)
*(ExceptionDumpHeader *)FINAL_BUFFER = dumpHeader;
cleanInvalidateDCacheAndDMB();
mcuReboot(); //Also contains DCache-cleaning code

2
exceptions/arm9/source/handlers.h
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@@ -39,7 +39,7 @@ typedef struct __attribute__((packed))
u32 additionalDataSize;
} ExceptionDumpHeader;
u32 readMPUConfig(u32 regionSettings[8]);
u32 readMPUConfig(u32 *regionSettings);
void FIQHandler(void);
void undefinedInstructionHandler(void);
void dataAbortHandler(void);

8
exceptions/arm9/source/mainHandler.c
View File

@@ -65,7 +65,7 @@ static u32 __attribute__((noinline)) copyMemory(void *dst, const void *src, u32
return size;
}
void __attribute__((noreturn)) mainHandler(u32 regs[REG_DUMP_SIZE / 4], u32 type)
void __attribute__((noreturn)) mainHandler(u32 *regs, u32 type)
{
ExceptionDumpHeader dumpHeader;
@@ -107,10 +107,10 @@ void __attribute__((noreturn)) mainHandler(u32 regs[REG_DUMP_SIZE / 4], u32 type
//Dump stack in place
dumpHeader.stackDumpSize = copyMemory(final, (const void *)registerDump[13], 0x1000 - (registerDump[13] & 0xFFF), 1);
//Copy header (actually optimized by the compiler)
final = (u8 *)FINAL_BUFFER;
dumpHeader.totalSize = sizeof(ExceptionDumpHeader) + dumpHeader.registerDumpSize + dumpHeader.codeDumpSize + dumpHeader.stackDumpSize + dumpHeader.additionalDataSize;
*(ExceptionDumpHeader *)final = dumpHeader;
//Copy header (actually optimized by the compiler)
*(ExceptionDumpHeader *)FINAL_BUFFER = dumpHeader;
((void (*)())0xFFFF0830)(); //Ensure that all memory transfers have completed and that the data cache has been flushed
i2cWriteRegister(I2C_DEV_MCU, 0x20, 1 << 2); //Reboot