mirror of
https://github.com/nasa/trick.git
synced 2024-12-22 22:42:26 +00:00
19025d77ad
Reorganized. Created a new top level include directory that will hold all of Trick's header files. Moved all of the Trick headers to this directory. Created a libexec directory that holds all of the executables that users don't need to execute directly. Changed all of the executables remaining in bin to start with "trick-". In the sim_services directories changed all source files to find the Trick headers in their new location. Since all of the include files are gone in sim_services, removed the src directories as well, moving all of the source files up a level. Moved the makefiles, docs, man, and other architecture independent files into a top level share directory. Renamed lib_${TRICK_HOST_CPU} to lib64 or lib depending on the platform we're currently on.
refs #63
108 lines
3.6 KiB
C++
108 lines
3.6 KiB
C++
/*
|
|
PURPOSE: (Floating point exception handler)
|
|
|
|
PROGRAMMERS: (((Robert W. Bailey) (LinCom) (April 1992) (--) (Realtime)))
|
|
*/
|
|
|
|
#include <stdio.h>
|
|
#include <string.h>
|
|
#include <stdlib.h>
|
|
#include <unistd.h>
|
|
|
|
#ifdef __APPLE__
|
|
#include <mach-o/dyld.h>
|
|
#endif
|
|
|
|
/*
|
|
* FPE specific headers
|
|
*/
|
|
#ifdef __linux
|
|
#include <fenv.h>
|
|
#endif
|
|
|
|
#include "trick/Executive.hh"
|
|
#include "trick/exec_proto.h"
|
|
#include "trick/message_proto.h"
|
|
|
|
/**
|
|
@design
|
|
-# This signal handler processes SIGFPE
|
|
-# Write a message to stderr that a signal has been caught.
|
|
-# In Linux print out the type of floating point error that occured.
|
|
-# If attach_debugger == true, attempt to attach a debugger to the current process.
|
|
-# Else if stack_trace == true, attempt to attach a debugger to print a stack trace.
|
|
-# Exit the process with a -2 return.
|
|
*/
|
|
|
|
void Trick::Executive::fpe_handler(siginfo_t * sip __attribute__((unused)) ) {
|
|
|
|
write( 2 , "\033[31mProcess terminated by signal FPE" , 36 ) ;
|
|
#if __linux
|
|
/* Determine what floating point error occurred */
|
|
if (sip != (siginfo_t *) NULL) {
|
|
switch (sip->si_code) {
|
|
case FPE_FLTRES: /* inexact */
|
|
write( 2, " (inexact)", 10 );
|
|
return ;
|
|
case FPE_FLTUND: /* underflow */
|
|
write( 2, " (floating point underflow)", 27 );
|
|
break;
|
|
case FPE_FLTINV: /* invalid operand */
|
|
write( 2, " (invalid operand)", 18 );
|
|
break;
|
|
case FPE_FLTDIV: /* division-by-zero */
|
|
write( 2, " (floating point division-by-zero)", 34);
|
|
break;
|
|
case FPE_FLTOVF: /* overflow */
|
|
write( 2, " (floating point overflow)", 26);
|
|
break;
|
|
case FPE_INTOVF: /* integer overflow */
|
|
write( 2, " (integer overflow)", 19);
|
|
break;
|
|
case FPE_INTDIV: /* integer division-by-zero */
|
|
write( 2, " (integer division-by-zero)", 27);
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
#endif
|
|
write( 2 , "\033[0m\n" , 5 ) ;
|
|
|
|
/*
|
|
Attempt to attach with debugger or print stack trace. Not a requirement.
|
|
sprintf and system are not async signal safe, but we don't have anything to lose.
|
|
*/
|
|
#if __linux
|
|
char command[1024];
|
|
if (attach_debugger == true) {
|
|
sprintf(command, "%s -silent /proc/%d/exe %d", debugger_command.c_str(), getpid(), getpid());
|
|
system(command);
|
|
} else if (stack_trace == true ) {
|
|
sprintf(command, "%s -silent -batch -x ${TRICK_HOME}/bin/gdb_commands "
|
|
"/proc/%d/exe %d | grep -A 20 \"signal handler\"", debugger_command.c_str(), getpid(), getpid());
|
|
system(command);
|
|
}
|
|
#elif __APPLE__
|
|
char command[2048];
|
|
char path[1024] ;
|
|
uint32_t size = sizeof(path) ;
|
|
if (_NSGetExecutablePath(path, &size) == 0 ) {
|
|
if (attach_debugger == true) {
|
|
write( 2 , "Attempting to attach debugger... standby.\n" , 41 ) ;
|
|
sprintf(command, "%s -silent %s %d", debugger_command.c_str(), path, getpid());
|
|
system(command);
|
|
} else if (stack_trace == true ) {
|
|
write( 2 , "Attempting to generate stack trace... standby.\n" , 47 ) ;
|
|
sprintf(command, "%s -batch -x ${TRICK_HOME}/bin/gdb_commands "
|
|
"%s %d", debugger_command.c_str(), path, getpid());
|
|
system(command);
|
|
}
|
|
}
|
|
#endif
|
|
|
|
// The user has chosen for Trick to intervene on their behalf. Exit if handler called.
|
|
_exit(-2) ;
|
|
|
|
}
|