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0030762: Foundation Classes - include backtrace within OSD_SIGSEGV

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Standard_Failure now holds an optional stack trace dump.
Added function Standard::StackTrace() dumping backtrace to the string.
SegvHandler within OSD_signal now appends backtrace to the message
if OSD::SignalStackTraceLength() is set to non-zero value
or environment variable "CSF_DEBUG_MODE" is set for debugging.

Added auxiliary macros Standard_NOINLINE disallowing function inlining.

Command "dsetsignal" has been extended by -strackTraceLength argument
for defining stack trace length within signals redirected to C++ exceptions.
Added "ddebugtraces" command for debugging purposes (adding stack traces to all exceptions).
This commit is contained in:
kgv
2019-06-03 08:06:24 +03:00
committed by bugmaster
parent 14eea8293d
commit 7fb9d6d573
16 changed files with 1167 additions and 329 deletions
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1
src/Draw/Draw.cxx
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@@ -377,6 +377,7 @@ void Draw_Appli(int argc, char** argv, const FDraw_InitAppli Draw_InitAppli)
// set signals
// *****************************************************************
OSD::SetSignal(Standard_False);
//OSD::SetSignalStackTraceLength (10);
#ifdef _WIN32
// in interactive mode, force Windows to report dll loading problems interactively

55
src/Draw/Draw_BasicCommands.cxx
View File

@@ -954,6 +954,7 @@ static int dsetsignal (Draw_Interpretor& theDI, Standard_Integer theArgNb, const
{
OSD_SignalMode aMode = OSD_SignalMode_Set;
Standard_Boolean aSetFPE = OSD::ToCatchFloatingSignals();
Standard_Integer aStackLen = OSD::SignalStackTraceLength();
// default for FPE signal is defined by CSF_FPE variable, if set
OSD_Environment aEnv("CSF_FPE");
@@ -995,6 +996,14 @@ static int dsetsignal (Draw_Interpretor& theDI, Standard_Integer theArgNb, const
else if (anArg == "default")
{
}
else if (anArgIter + 1 < theArgNb
&& (anArg == "-stracktracelength"
|| anArg == "-stracktracelen"
|| anArg == "-stracklength"
|| anArg == "-stracklen"))
{
aStackLen = Draw::Atoi (theArgVec[++anArgIter]);
}
else
{
Message::SendFail() << "Syntax error: unknown argument '" << anArg << "'";
@@ -1003,19 +1012,21 @@ static int dsetsignal (Draw_Interpretor& theDI, Standard_Integer theArgNb, const
}
OSD::SetSignal(aMode, aSetFPE);
OSD::SetSignalStackTraceLength (aStackLen);
// report actual status in the end
const char* aModeStr = 0;
switch (OSD::SignalMode())
{
default:
case OSD_SignalMode_AsIs: aModeStr = "asis"; break;
case OSD_SignalMode_Set: aModeStr = "set"; break;
case OSD_SignalMode_SetUnhandled: aModeStr = "unhandled"; break;
case OSD_SignalMode_Unset: aModeStr = "unset"; break;
default:
case OSD_SignalMode_AsIs: aModeStr = "asis"; break;
case OSD_SignalMode_Set: aModeStr = "set"; break;
case OSD_SignalMode_SetUnhandled: aModeStr = "unhandled"; break;
case OSD_SignalMode_Unset: aModeStr = "unset"; break;
}
theDI << "Signal mode: " << aModeStr << "\n"
<< "Catch FPE: " << (OSD::ToCatchFloatingSignals() ? "1" : "0") << "\n";
<< "Catch FPE: " << (OSD::ToCatchFloatingSignals() ? "1" : "0") << "\n"
<< "Stack Trace Length: " << aStackLen << "\n";
return 0;
}
@@ -1112,6 +1123,27 @@ static int dtracelevel (Draw_Interpretor& theDI,
return 0;
}
//==============================================================================
//function : ddebugtraces
//purpose :
//==============================================================================
static int ddebugtraces (Draw_Interpretor& theDI, Standard_Integer theArgNb, const char** theArgVec)
{
if (theArgNb < 2)
{
theDI << Standard_Failure::DefaultStackTraceLength();
return 0;
}
else if (theArgNb != 2)
{
theDI << "Syntax error: wrong number of arguments";
return 1;
}
Standard_Failure::SetDefaultStackTraceLength (Draw::Atoi (theArgVec[1]));
return 0;
}
//==============================================================================
//function : dputs
//purpose :
@@ -1243,7 +1275,11 @@ void Draw::BasicCommands(Draw_Interpretor& theCommands)
__FILE__, dmeminfo, g);
theCommands.Add("dperf","dperf [reset] -- show performance counters, reset if argument is provided",
__FILE__,dperf,g);
theCommands.Add("dsetsignal","dsetsignal [{asis|set|unhandled|unset}=set] [{0|1|default=$CSF_FPE}]\n -- set OSD signal handler, with FPE option if argument is given",
theCommands.Add("dsetsignal",
"dsetsignal [{asIs|set|unhandled|unset}=set] [{0|1|default=$CSF_FPE}]"
"\n\t\t: [-strackTraceLength Length]"
"\n\t\t: Sets OSD signal handler, with FPE option if argument is given."
"\n\t\t: -strackTraceLength specifies length of stack trace to put into exceptions redirected from signals.",
__FILE__,dsetsignal,g);
theCommands.Add("dparallel",
@@ -1264,6 +1300,11 @@ void Draw::BasicCommands(Draw_Interpretor& theCommands)
__FILE__,decho,g);
theCommands.Add("dtracelevel", "dtracelevel [trace|info|warn|alarm|fail]",
__FILE__, dtracelevel, g);
theCommands.Add("ddebugtraces",
"ddebugtraces nbTraces"
"\n\t\t: Sets the number of lines for the stack trace within Standard_Failure constructor."
"\n\t\t: Intended for debug purposes.",
__FILE__, ddebugtraces, g);
theCommands.Add("dbreak", "raises Tcl exception if user has pressed Control-Break key",
__FILE__,dbreak,g);