Share crash information between LLGS and local POSIX debugging with
CrashReason class. Deliver crash information from LLGS to lldb via
description field of thread stop packet.
llvm-svn: 227926
diff --git a/lldb/source/Plugins/Process/Linux/ProcessMonitor.cpp b/lldb/source/Plugins/Process/Linux/ProcessMonitor.cpp
index 3efeb5d..43a1942 100644
--- a/lldb/source/Plugins/Process/Linux/ProcessMonitor.cpp
+++ b/lldb/source/Plugins/Process/Linux/ProcessMonitor.cpp
@@ -46,6 +46,7 @@
#include "lldb/Target/RegisterContext.h"
#include "lldb/Utility/PseudoTerminal.h"
+#include "Plugins/Process/POSIX/CrashReason.h"
#include "Plugins/Process/POSIX/POSIXThread.h"
#include "ProcessLinux.h"
#include "Plugins/Process/POSIX/ProcessPOSIXLog.h"
@@ -1836,27 +1837,14 @@
if (log)
log->Printf ("ProcessMonitor::%s() received signal %s", __FUNCTION__, monitor->m_process->GetUnixSignals().GetSignalAsCString (signo));
- if (signo == SIGSEGV) {
+ switch (signo)
+ {
+ case SIGSEGV:
+ case SIGILL:
+ case SIGFPE:
+ case SIGBUS:
lldb::addr_t fault_addr = reinterpret_cast<lldb::addr_t>(info->si_addr);
- ProcessMessage::CrashReason reason = GetCrashReasonForSIGSEGV(info);
- return ProcessMessage::Crash(pid, reason, signo, fault_addr);
- }
-
- if (signo == SIGILL) {
- lldb::addr_t fault_addr = reinterpret_cast<lldb::addr_t>(info->si_addr);
- ProcessMessage::CrashReason reason = GetCrashReasonForSIGILL(info);
- return ProcessMessage::Crash(pid, reason, signo, fault_addr);
- }
-
- if (signo == SIGFPE) {
- lldb::addr_t fault_addr = reinterpret_cast<lldb::addr_t>(info->si_addr);
- ProcessMessage::CrashReason reason = GetCrashReasonForSIGFPE(info);
- return ProcessMessage::Crash(pid, reason, signo, fault_addr);
- }
-
- if (signo == SIGBUS) {
- lldb::addr_t fault_addr = reinterpret_cast<lldb::addr_t>(info->si_addr);
- ProcessMessage::CrashReason reason = GetCrashReasonForSIGBUS(info);
+ const auto reason = GetCrashReason(*info);
return ProcessMessage::Crash(pid, reason, signo, fault_addr);
}
@@ -2114,147 +2102,6 @@
return false;
}
-ProcessMessage::CrashReason
-ProcessMonitor::GetCrashReasonForSIGSEGV(const siginfo_t *info)
-{
- ProcessMessage::CrashReason reason;
- assert(info->si_signo == SIGSEGV);
-
- reason = ProcessMessage::eInvalidCrashReason;
-
- switch (info->si_code)
- {
- default:
- assert(false && "unexpected si_code for SIGSEGV");
- break;
- case SI_KERNEL:
- // Linux will occasionally send spurious SI_KERNEL codes.
- // (this is poorly documented in sigaction)
- // One way to get this is via unaligned SIMD loads.
- reason = ProcessMessage::eInvalidAddress; // for lack of anything better
- break;
- case SEGV_MAPERR:
- reason = ProcessMessage::eInvalidAddress;
- break;
- case SEGV_ACCERR:
- reason = ProcessMessage::ePrivilegedAddress;
- break;
- }
-
- return reason;
-}
-
-ProcessMessage::CrashReason
-ProcessMonitor::GetCrashReasonForSIGILL(const siginfo_t *info)
-{
- ProcessMessage::CrashReason reason;
- assert(info->si_signo == SIGILL);
-
- reason = ProcessMessage::eInvalidCrashReason;
-
- switch (info->si_code)
- {
- default:
- assert(false && "unexpected si_code for SIGILL");
- break;
- case ILL_ILLOPC:
- reason = ProcessMessage::eIllegalOpcode;
- break;
- case ILL_ILLOPN:
- reason = ProcessMessage::eIllegalOperand;
- break;
- case ILL_ILLADR:
- reason = ProcessMessage::eIllegalAddressingMode;
- break;
- case ILL_ILLTRP:
- reason = ProcessMessage::eIllegalTrap;
- break;
- case ILL_PRVOPC:
- reason = ProcessMessage::ePrivilegedOpcode;
- break;
- case ILL_PRVREG:
- reason = ProcessMessage::ePrivilegedRegister;
- break;
- case ILL_COPROC:
- reason = ProcessMessage::eCoprocessorError;
- break;
- case ILL_BADSTK:
- reason = ProcessMessage::eInternalStackError;
- break;
- }
-
- return reason;
-}
-
-ProcessMessage::CrashReason
-ProcessMonitor::GetCrashReasonForSIGFPE(const siginfo_t *info)
-{
- ProcessMessage::CrashReason reason;
- assert(info->si_signo == SIGFPE);
-
- reason = ProcessMessage::eInvalidCrashReason;
-
- switch (info->si_code)
- {
- default:
- assert(false && "unexpected si_code for SIGFPE");
- break;
- case FPE_INTDIV:
- reason = ProcessMessage::eIntegerDivideByZero;
- break;
- case FPE_INTOVF:
- reason = ProcessMessage::eIntegerOverflow;
- break;
- case FPE_FLTDIV:
- reason = ProcessMessage::eFloatDivideByZero;
- break;
- case FPE_FLTOVF:
- reason = ProcessMessage::eFloatOverflow;
- break;
- case FPE_FLTUND:
- reason = ProcessMessage::eFloatUnderflow;
- break;
- case FPE_FLTRES:
- reason = ProcessMessage::eFloatInexactResult;
- break;
- case FPE_FLTINV:
- reason = ProcessMessage::eFloatInvalidOperation;
- break;
- case FPE_FLTSUB:
- reason = ProcessMessage::eFloatSubscriptRange;
- break;
- }
-
- return reason;
-}
-
-ProcessMessage::CrashReason
-ProcessMonitor::GetCrashReasonForSIGBUS(const siginfo_t *info)
-{
- ProcessMessage::CrashReason reason;
- assert(info->si_signo == SIGBUS);
-
- reason = ProcessMessage::eInvalidCrashReason;
-
- switch (info->si_code)
- {
- default:
- assert(false && "unexpected si_code for SIGBUS");
- break;
- case BUS_ADRALN:
- reason = ProcessMessage::eIllegalAlignment;
- break;
- case BUS_ADRERR:
- reason = ProcessMessage::eIllegalAddress;
- break;
- case BUS_OBJERR:
- reason = ProcessMessage::eHardwareError;
- break;
- }
-
- return reason;
-}
-
void
ProcessMonitor::ServeOperation(OperationArgs *args)
{