160 lines
4.3 KiB
C++
160 lines
4.3 KiB
C++
//===-- ProcessMessage.h ----------------------------------------*- C++ -*-===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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#ifndef liblldb_ProcessMessage_H_
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#define liblldb_ProcessMessage_H_
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#include <cassert>
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#include "lldb/lldb-defines.h"
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#include "lldb/lldb-types.h"
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class ProcessMessage
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{
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public:
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/// The type of signal this message can correspond to.
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enum Kind
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{
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eInvalidMessage,
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eExitMessage,
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eLimboMessage,
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eSignalMessage,
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eSignalDeliveredMessage,
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eTraceMessage,
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eBreakpointMessage,
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eCrashMessage
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};
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enum CrashReason
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{
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eInvalidCrashReason,
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// SIGSEGV crash reasons.
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eInvalidAddress,
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ePrivilegedAddress,
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// SIGILL crash reasons.
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eIllegalOpcode,
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eIllegalOperand,
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eIllegalAddressingMode,
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eIllegalTrap,
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ePrivilegedOpcode,
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ePrivilegedRegister,
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eCoprocessorError,
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eInternalStackError,
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// SIGBUS crash reasons,
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eIllegalAlignment,
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eIllegalAddress,
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eHardwareError,
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// SIGFPE crash reasons,
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eIntegerDivideByZero,
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eIntegerOverflow,
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eFloatDivideByZero,
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eFloatOverflow,
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eFloatUnderflow,
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eFloatInexactResult,
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eFloatInvalidOperation,
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eFloatSubscriptRange
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};
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ProcessMessage()
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: m_tid(LLDB_INVALID_PROCESS_ID),
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m_kind(eInvalidMessage),
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m_crash_reason(eInvalidCrashReason),
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m_status(0),
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m_addr(0) { }
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Kind GetKind() const { return m_kind; }
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lldb::tid_t GetTID() const { return m_tid; }
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/// Indicates that the thread @p tid is about to exit with status @p status.
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static ProcessMessage Limbo(lldb::tid_t tid, int status) {
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return ProcessMessage(tid, eLimboMessage, status);
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}
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/// Indicates that the thread @p tid had the signal @p signum delivered.
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static ProcessMessage Signal(lldb::tid_t tid, int signum) {
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return ProcessMessage(tid, eSignalMessage, signum);
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}
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/// Indicates that a signal @p signum generated by the debugging process was
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/// delivered to the thread @p tid.
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static ProcessMessage SignalDelivered(lldb::tid_t tid, int signum) {
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return ProcessMessage(tid, eSignalDeliveredMessage, signum);
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}
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/// Indicates that the thread @p tid encountered a trace point.
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static ProcessMessage Trace(lldb::tid_t tid) {
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return ProcessMessage(tid, eTraceMessage);
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}
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/// Indicates that the thread @p tid encountered a break point.
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static ProcessMessage Break(lldb::tid_t tid) {
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return ProcessMessage(tid, eBreakpointMessage);
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}
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/// Indicates that the thread @p tid crashed.
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static ProcessMessage Crash(lldb::pid_t pid, CrashReason reason,
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int signo, lldb::addr_t fault_addr) {
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ProcessMessage message(pid, eCrashMessage, signo, fault_addr);
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message.m_crash_reason = reason;
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return message;
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}
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int GetExitStatus() const {
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assert(GetKind() == eExitMessage || GetKind() == eLimboMessage);
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return m_status;
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}
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int GetSignal() const {
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assert(GetKind() == eSignalMessage || GetKind() == eCrashMessage ||
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GetKind() == eSignalDeliveredMessage);
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return m_status;
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}
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int GetStopStatus() const {
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assert(GetKind() == eSignalMessage);
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return m_status;
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}
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CrashReason GetCrashReason() const {
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assert(GetKind() == eCrashMessage);
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return m_crash_reason;
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}
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lldb::addr_t GetFaultAddress() const {
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assert(GetKind() == eCrashMessage);
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return m_addr;
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}
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static const char *
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GetCrashReasonString(CrashReason reason);
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private:
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ProcessMessage(lldb::tid_t tid, Kind kind,
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int status = 0, lldb::addr_t addr = 0)
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: m_tid(tid),
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m_kind(kind),
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m_crash_reason(eInvalidCrashReason),
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m_status(status),
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m_addr(addr) { }
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lldb::tid_t m_tid;
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Kind m_kind : 8;
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CrashReason m_crash_reason : 8;
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int m_status;
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lldb::addr_t m_addr;
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};
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#endif // #ifndef liblldb_ProcessMessage_H_
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