63 lines
1.9 KiB
C++
63 lines
1.9 KiB
C++
|
/*
|
||
|
|
* Copyright (C) 2023 The Android Open Source Project
|
||
|
|
*
|
||
|
|
* Licensed under the Apache License, Version 2.0 (the "License");
|
||
|
|
* you may not use this file except in compliance with the License.
|
||
|
|
* You may obtain a copy of the License at
|
||
|
|
*
|
||
|
|
* http://www.apache.org/licenses/LICENSE-2.0
|
||
|
|
*
|
||
|
|
* Unless required by applicable law or agreed to in writing, software
|
||
|
|
* distributed under the License is distributed on an "AS IS" BASIS,
|
||
|
|
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||
|
|
* See the License for the specific language governing permissions and
|
||
|
|
* limitations under the License.
|
||
|
|
*/
|
||
|
|
|
||
|
|
#include "fault_handler.h"
|
||
|
|
|
||
|
|
#include <sys/ucontext.h>
|
||
|
|
|
||
|
|
#include "base/logging.h" // For VLOG.
|
||
|
|
|
||
|
|
extern "C" void art_quick_throw_stack_overflow();
|
||
|
|
extern "C" void art_quick_throw_null_pointer_exception_from_signal();
|
||
|
|
extern "C" void art_quick_implicit_suspend();
|
||
|
|
|
||
|
|
// RISCV64 specific fault handler functions (or stubs if unimplemented yet).
|
||
|
|
|
||
|
|
namespace art {
|
||
|
|
|
||
|
|
uintptr_t FaultManager::GetFaultPc(siginfo_t*, void* context) {
|
||
|
|
ucontext_t* uc = reinterpret_cast<ucontext_t*>(context);
|
||
|
|
mcontext_t* mc = reinterpret_cast<mcontext_t*>(&uc->uc_mcontext);
|
||
|
|
if (mc->__gregs[REG_SP] == 0) {
|
||
|
|
VLOG(signals) << "Missing SP";
|
||
|
|
return 0u;
|
||
|
|
}
|
||
|
|
return mc->__gregs[REG_PC];
|
||
|
|
}
|
||
|
|
|
||
|
|
uintptr_t FaultManager::GetFaultSp(void* context) {
|
||
|
|
ucontext_t* uc = reinterpret_cast<ucontext_t*>(context);
|
||
|
|
mcontext_t* mc = reinterpret_cast<mcontext_t*>(&uc->uc_mcontext);
|
||
|
|
return mc->__gregs[REG_SP];
|
||
|
|
}
|
||
|
|
|
||
|
|
bool NullPointerHandler::Action(int, siginfo_t*, void*) {
|
||
|
|
LOG(FATAL) << "NullPointerHandler::Action is not implemented for RISC-V";
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
|
||
|
|
bool SuspensionHandler::Action(int, siginfo_t*, void*) {
|
||
|
|
LOG(FATAL) << "SuspensionHandler::Action is not implemented for RISC-V";
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
|
||
|
|
bool StackOverflowHandler::Action(int, siginfo_t*, void*) {
|
||
|
|
LOG(FATAL) << "StackOverflowHandler::Action is not implemented for RISC-V";
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
|
||
|
|
} // namespace art
|