htop/linux/LinuxCRT.c

/*
htop - LinuxCRT.c
(C) 2014 Hisham H. Muhammad
Released under the GNU GPLv2, see the COPYING file
in the source distribution for its full text.
*/

#include "config.h"
#include "LinuxCRT.h"
#include "CRT.h"

#include <signal.h>
#include <stdio.h>
#include <stdlib.h>
#ifdef HAVE_EXECINFO_H
#include <execinfo.h>
#endif

void CRT_handleSIGSEGV(int sgn) {
   (void) sgn;
   CRT_done();
   #ifdef __linux
   fprintf(stderr, "\n\nhtop " VERSION " aborting. Please report bug at https://htop.dev\n");
   #ifdef HAVE_EXECINFO_H
   size_t size = backtrace(backtraceArray, ARRAYSIZE(backtraceArray));
   fprintf(stderr, "\n Please include in your report the following backtrace: \n");
   backtrace_symbols_fd(backtraceArray, size, 2);
   fprintf(stderr, "\nAdditionally, in order to make the above backtrace useful,");
   fprintf(stderr, "\nplease also run the following command to generate a disassembly of your binary:");
   fprintf(stderr, "\n\n   objdump -d `which htop` > ~/htop.objdump");
   fprintf(stderr, "\n\nand then attach the file ~/htop.objdump to your bug report.");
   fprintf(stderr, "\n\nThank you for helping to improve htop!\n\n");
   #endif
   #else
   fprintf(stderr, "\nUnfortunately, you seem to be using an unsupported platform!");
   fprintf(stderr, "\nPlease contact your platform package maintainer!\n\n");
   #endif

   /* Call old sigsegv handler; may be default exit or third party one (e.g. ASAN) */
   sigaction (SIGSEGV, &old_sigsegv_handler, NULL);
}