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Exception handling: catch SIGBUS. Evaluate siginfo_t::si_code

This commit is contained in:
Alexander Mai 2014-05-25 15:53:26 +02:00
parent 2d4bae0110
commit 7b36bbbba8
1 changed files with 98 additions and 5 deletions
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103
cli/cppcheckexecutor.cpp
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@ -194,6 +194,7 @@ struct Signaltype {
#define DECLARE_SIGNAL(x) {x, #x}
static const Signaltype listofsignals[] = {
// don't care: SIGABRT,
DECLARE_SIGNAL(SIGBUS),
DECLARE_SIGNAL(SIGFPE),
DECLARE_SIGNAL(SIGILL),
DECLARE_SIGNAL(SIGINT),
@ -298,15 +299,91 @@ static void CppcheckSignalHandler(int signo, siginfo_t * info, void * /*context*
fputs(", ", f);
fputs(sigtext, f);
switch (signo) {
case SIGILL:
fprintf(f, " (at 0x%p).\n",
info->si_addr);
break;
case SIGBUS:
switch (info->si_code) {
case BUS_ADRALN: // invalid address alignment
fprintf(f, " - BUS_ADRALN");
break;
case BUS_ADRERR: // nonexistent physical address
fprintf(f, " - BUS_ADRERR");
break;
case BUS_OBJERR: // object-specific hardware error
fprintf(f, " - BUS_OBJERR");
break;
#ifdef BUS_MCEERR_AR
case BUS_MCEERR_AR: // Hardware memory error consumed on a machine check;
fprintf(f, " - BUS_MCEERR_AR");
break;
#endif
#ifdef BUS_MCEERR_AO
case BUS_MCEERR_AO: // Hardware memory error detected in process but not consumed
fprintf(f, " - BUS_MCEERR_AO");
break;
#endif
default:
break;
}
case SIGFPE:
switch (info->si_code) {
case FPE_INTDIV: // integer divide by zero
fprintf(f, " - FPE_INTDIV");
break;
case FPE_INTOVF: // integer overflow
fprintf(f, " - FPE_INTOVF");
break;
case FPE_FLTDIV: // floating-point divide by zero
fprintf(f, " - FPE_FLTDIV");
break;
case FPE_FLTOVF: // floating-point overflow
fprintf(f, " - FPE_FLTOVF");
break;
case FPE_FLTUND: // floating-point underflow
fprintf(f, " - FPE_FLTUND");
break;
case FPE_FLTRES: // floating-point inexact result
fprintf(f, " - FPE_FLTRES");
break;
case FPE_FLTINV: // floating-point invalid operation
fprintf(f, " - FPE_FLTINV");
break;
case FPE_FLTSUB: // subscript out of range
fprintf(f, " - FPE_FLTSUB");
break;
default:
break;
}
fprintf(f, " (at 0x%p).\n",
info->si_addr);
break;
case SIGSEGV:
case SIGILL:
switch (info->si_code) {
case ILL_ILLOPC: // illegal opcode
fprintf(f, " - ILL_ILLOPC");
break;
case ILL_ILLOPN: // illegal operand
fprintf(f, " - ILL_ILLOPN");
break;
case ILL_ILLADR: // illegal addressing mode
fprintf(f, " - ILL_ILLADR");
break;
case ILL_ILLTRP: // illegal trap
fprintf(f, " - ILL_ILLTRP");
break;
case ILL_PRVOPC: // privileged opcode
fprintf(f, " - ILL_PRVOPC");
break;
case ILL_PRVREG: // privileged register
fprintf(f, " - ILL_PRVREG");
break;
case ILL_COPROC: // coprocessor error
fprintf(f, " - ILL_COPROC");
break;
case ILL_BADSTK: // internal stack error
fprintf(f, " - ILL_BADSTK");
break;
default:
break;
}
fprintf(f, " (at 0x%p).\n",
info->si_addr);
break;
@ -314,6 +391,20 @@ static void CppcheckSignalHandler(int signo, siginfo_t * info, void * /*context*
bPrintCallstack=false;
fprintf(f, ".\n");
break;
case SIGSEGV:
switch (info->si_code) {
case SEGV_MAPERR: // address not mapped to object
fprintf(f, " - SEGV_MAPERR");
break;
case SEGV_ACCERR: // invalid permissions for mapped object
fprintf(f, " - SEGV_ACCERR");
break;
default:
break;
}
fprintf(f, " (at 0x%p).\n",
info->si_addr);
break;
default:
fputs(".\n", f);
break;
@ -565,8 +656,10 @@ void CppCheckExecutor::setExceptionOutput(const std::string& fn)
{
exceptionOutput=fn;
}
const std::string& CppCheckExecutor::getExceptionOutput()
{
return exceptionOutput;
}
std::string CppCheckExecutor::exceptionOutput;