[Interest] Stack trace on Windows

[rollastre at gmail.com]

Hi.

I use this

in the PRO file

windows {
    LIBS+=-ldbghelp#beabletoprintthestacktrace
}

then

intmain(intargc,char*argv[])

{

//0.somepreliminarystuff

//printstacktraceuponSegmentationFault

signal(SIGSEGV,os_signal_print_stack_trace);/*segmentviolation*/ // you could do the same on other OS signals. E.g.
//signal(SIGINT,os_signal_print_stack_trace);/*interrupt*/ 
//signal(SIGILL,os_signal_print_stack_trace);/*illegalinstruction-invalidfunctionimage*/ 
//signal(SIGFPE,os_signal_print_stack_trace);/*floatingpointexception*/ 
... }

and then

#if(defined(__OS__MACOSX__)||defined(__OS__LINUX__))

#include<execinfo.h>

#include<signal.h>

#include<stdlib.h>

voidos_signal_print_stack_trace(intsig)

{

void*array[10];

size_tsize;

//getvoid*'sforallentriesonthestack

size=backtrace(array,10);

//printoutalltheframestostderr

fprintf(stderr,"Error:signal%d:\n",sig);

backtrace_symbols_fd(array,size,2);

system_crash_event();

log_fatal("["__OS__":"__RUNTIME__":"__LIB_BUILD_TYPE__"]:programfoundanunrecoverableerrorandmustquit");

exit(-10);

}

#elifdefined(__OS__WINDOWS__)

#include<DbgHelp.h>

#include<sstream>

voidos_signal_print_stack_trace(intsig)

{

//AllDbgHelpfunctions,suchasthisone,aresinglethreaded.Therefore,callsfrommorethan 


//onethreadtothisfunctionwilllikelyresultinunexpectedbehaviorormemorycorruption.To

//avoidthis,youmustsynchronizeallconcurrentcallsfrommorethanonethreadtothisfunction.

unsignedinti;

void*stack[100];

unsignedshortframes;

SYMBOL_INFO*symbol;

HANDLEprocess;

process=GetCurrentProcess();

SymInitialize(process,NULL,TRUE);

frames=CaptureStackBackTrace(0,100,stack,NULL);

symbol=(SYMBOL_INFO*)calloc(sizeof(SYMBOL_INFO)+256*sizeof(char),1);

symbol->MaxNameLen=255;

symbol->SizeOfStruct=sizeof(SYMBOL_INFO);

for(i=0;i<frames;i++)

{

SymFromAddr(process,(DWORD64)(stack[i]),0,symbol);

std::stringstreamss;

ss<<frames-i-1<<":"<<symbol->Name<<"-0x"<<std::hex<<symbol->Address<<std::dec;

log_error(ss.str());

}

free(symbol);

log_fatal("["__OS__":"__RUNTIME__":"__LIB_BUILD_TYPE__"]:programfoundanunrecoverableerrorandmustquit");

exit(-10);

}


Regards.


On 02/04/2019 19:39, Boris Ralchenko wrote:
> Hello,
>
> Question to Windows gurus - what is the best way to get stack trace 
> after crash? Say Qt/QML application runs in QA environment, not 
> development. MacOS creates log with the stack trace, I am looking to 
> something similar on Windows.
>
>
> Regards,
>     Boris Ralchenko.
>
>
>
>
>
>
> _______________________________________________
> Interest mailing list
> Interest at qt-project.org
> https://lists.qt-project.org/listinfo/interest
On 02/04/2019 19:39, Boris Ralchenko wrote:
> Hello,
>
> Question to Windows gurus - what is the best way to get stack trace 
> after crash? Say Qt/QML application runs in QA environment, not 
> development. MacOS creates log with the stack trace, I am looking to 
> something similar on Windows.
>
>
> Regards,
>     Boris Ralchenko.
>
>
>
>
>
>
> _______________________________________________
> Interest mailing list
> Interest at qt-project.org
> https://lists.qt-project.org/listinfo/interest
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