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Print backtrace on deadlocks

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Alex 2023-05-05 18:21:31 +03:00
parent 953401c4b2
commit 59ebcdfa8e
Signed by untrusted user who does not match committer: enderice2
GPG Key ID: EACC3AD603BAB4DD
2 changed files with 51 additions and 29 deletions
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79
Core/Lock.cpp
View File

@ -22,10 +22,57 @@
#include "../kernel.h" #include "../kernel.h"
// #define PRINT_BACKTRACE #ifdef DEBUG
#define PRINT_BACKTRACE
#endif
#ifdef PRINT_BACKTRACE #ifdef PRINT_BACKTRACE
#pragma GCC diagnostic ignored "-Wframe-address" #pragma GCC diagnostic ignored "-Wframe-address"
void PrintStacktrace(LockClass::SpinLockData *Lock)
{
if (KernelSymbolTable)
{
struct StackFrame
{
uintptr_t BasePointer;
uintptr_t ReturnAddress;
};
char DbgAttempt[1024] = "\0";
char DbgHolder[1024] = "\0";
StackFrame *FrameAttempt = (StackFrame *)Lock->StackPointerAttempt.load();
StackFrame *FrameHolder = (StackFrame *)Lock->StackPointerHolder.load();
while (Memory::Virtual().Check(FrameAttempt))
{
sprintf(DbgAttempt + strlen(DbgAttempt), "%s<-", KernelSymbolTable->GetSymbolFromAddress(FrameAttempt->ReturnAddress));
FrameAttempt = (StackFrame *)FrameAttempt->BasePointer;
}
while (Memory::Virtual().Check(FrameHolder))
{
sprintf(DbgHolder + strlen(DbgHolder), "%s<-", KernelSymbolTable->GetSymbolFromAddress(FrameHolder->ReturnAddress));
FrameHolder = (StackFrame *)FrameHolder->BasePointer;
}
debug("Attempt: %s", DbgAttempt);
debug("Holder: %s", DbgHolder);
// debug("\t\t%s<-%s<-%s<-%s<-%s<-%s<-%s<-%s<-%s<-%s",
// KernelSymbolTable->GetSymbolFromAddress((uintptr_t)__builtin_return_address(0)),
// KernelSymbolTable->GetSymbolFromAddress((uintptr_t)__builtin_return_address(1)),
// KernelSymbolTable->GetSymbolFromAddress((uintptr_t)__builtin_return_address(2)),
// KernelSymbolTable->GetSymbolFromAddress((uintptr_t)__builtin_return_address(3)),
// KernelSymbolTable->GetSymbolFromAddress((uintptr_t)__builtin_return_address(4)),
// KernelSymbolTable->GetSymbolFromAddress((uintptr_t)__builtin_return_address(5)),
// KernelSymbolTable->GetSymbolFromAddress((uintptr_t)__builtin_return_address(6)),
// KernelSymbolTable->GetSymbolFromAddress((uintptr_t)__builtin_return_address(7)),
// KernelSymbolTable->GetSymbolFromAddress((uintptr_t)__builtin_return_address(8)),
// KernelSymbolTable->GetSymbolFromAddress((uintptr_t)__builtin_return_address(9)));
}
}
#endif #endif
bool ForceUnlock = false; bool ForceUnlock = false;
@ -55,20 +102,7 @@ void LockClass::DeadLock(SpinLockData Lock)
CCore, Lock.Core, this->DeadLocks); CCore, Lock.Core, this->DeadLocks);
#ifdef PRINT_BACKTRACE #ifdef PRINT_BACKTRACE
if (KernelSymbolTable) PrintStacktrace(&Lock);
{
debug("\t\t%s<-%s<-%s<-%s<-%s<-%s<-%s<-%s<-%s<-%s",
KernelSymbolTable->GetSymbolFromAddress((uintptr_t)__builtin_return_address(0)),
KernelSymbolTable->GetSymbolFromAddress((uintptr_t)__builtin_return_address(1)),
KernelSymbolTable->GetSymbolFromAddress((uintptr_t)__builtin_return_address(2)),
KernelSymbolTable->GetSymbolFromAddress((uintptr_t)__builtin_return_address(3)),
KernelSymbolTable->GetSymbolFromAddress((uintptr_t)__builtin_return_address(4)),
KernelSymbolTable->GetSymbolFromAddress((uintptr_t)__builtin_return_address(5)),
KernelSymbolTable->GetSymbolFromAddress((uintptr_t)__builtin_return_address(6)),
KernelSymbolTable->GetSymbolFromAddress((uintptr_t)__builtin_return_address(7)),
KernelSymbolTable->GetSymbolFromAddress((uintptr_t)__builtin_return_address(8)),
KernelSymbolTable->GetSymbolFromAddress((uintptr_t)__builtin_return_address(9)));
}
#endif #endif
// TODO: Print on screen too. // TODO: Print on screen too.
@ -144,20 +178,7 @@ void LockClass::TimeoutDeadLock(SpinLockData Lock, uint64_t Timeout)
CCore, Lock.Core, Timeout, Timeout - Counter); CCore, Lock.Core, Timeout, Timeout - Counter);
#ifdef PRINT_BACKTRACE #ifdef PRINT_BACKTRACE
if (KernelSymbolTable) PrintStacktrace(&Lock);
{
debug("\t\t%s<-%s<-%s<-%s<-%s<-%s<-%s<-%s<-%s<-%s",
KernelSymbolTable->GetSymbolFromAddress((uintptr_t)__builtin_return_address(0)),
KernelSymbolTable->GetSymbolFromAddress((uintptr_t)__builtin_return_address(1)),
KernelSymbolTable->GetSymbolFromAddress((uintptr_t)__builtin_return_address(2)),
KernelSymbolTable->GetSymbolFromAddress((uintptr_t)__builtin_return_address(3)),
KernelSymbolTable->GetSymbolFromAddress((uintptr_t)__builtin_return_address(4)),
KernelSymbolTable->GetSymbolFromAddress((uintptr_t)__builtin_return_address(5)),
KernelSymbolTable->GetSymbolFromAddress((uintptr_t)__builtin_return_address(6)),
KernelSymbolTable->GetSymbolFromAddress((uintptr_t)__builtin_return_address(7)),
KernelSymbolTable->GetSymbolFromAddress((uintptr_t)__builtin_return_address(8)),
KernelSymbolTable->GetSymbolFromAddress((uintptr_t)__builtin_return_address(9)));
}
#endif #endif
if (Timeout < Counter) if (Timeout < Counter)

1
include/lock.hpp
View File

@ -38,6 +38,7 @@ size_t GetLocksCount();
/** @brief Please use this macro to create a new lock. */ /** @brief Please use this macro to create a new lock. */
class LockClass class LockClass
{ {
public:
struct SpinLockData struct SpinLockData
{ {
std::atomic_uint64_t LockData = 0x0; std::atomic_uint64_t LockData = 0x0;