gdb error not in executable format: File format not recognized

I am trying to debug a simple “hello world” C++ program on Ubuntu 16.04 but gdb is not able to recognize the executable file format. However, I am able to successfully run the executable on the command line. Here is the code

#include <iostream>
using namespace std;

int main() {
    cout << "!!!Hello World!!!" << endl; // prints !!!Hello World!!!
    return 0;
}

I compile the program file TestProject.cpp using the command

g++ -g TestProject.cpp -o hello

Then to debug, I give the command

gdb ./hello

I get the following error message

GNU gdb (Ubuntu 7.11.1-0ubuntu1~16.5) 7.11.1
Copyright (C) 2016 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.  Type "show copying"
and "show warranty" for details.
This GDB was configured as "i686-linux-gnu".
Type "show configuration" for configuration details.
For bug reporting instructions, please see:
<http://www.gnu.org/software/gdb/bugs/>.
Find the GDB manual and other documentation resources online at:
<http://www.gnu.org/software/gdb/documentation/>.
For help, type "help".
Type "apropos word" to search for commands related to "word"...
"/home/<home>/./hello": not in executable format: File format not recognized

Something seems to be corrupt with the Ubuntu machine. Because I am able to debug the same program on another Ubuntu 16.04 virtual machine.

Related Posts:

  1. What’s the difference between nexti and stepi in gdb?
  2. gcc -g :what will happen
  3. no debugging symbols found when using gdb
  4. “please check gdb is codesigned – see taskgated(8)” – How to get gdb installed with homebrew code signed?
  5. Pause Console in C++ program
  6. Why the switch statement cannot be applied on strings?
  7. How to dynamically allocate arrays in C++
  8. How to convert string to char array in C++?
  9. How can I convert a std::string to int?
  10. Why is “using namespace std;” considered bad practice?
  11. How do I print out the contents of a vector?
  12. ‘was not declared in this scope’ error
  13. Good input validation loop using cin – C++
  14. C++ for each, pulling from vector elements
  15. How do I erase an element from std::vector<> by index?
  16. Incomplete Type Is Not Allowed
  17. how to implement quick sort algorithm in C++
  18. C++ Vector of pointers
  19. How do I reverse a C++ vector?
  20. (->) arrow operator and (.) dot operator , class pointer
  21. How to reverse an std::string? [duplicate]
  22. What is the C version of RMI
  23. Difference between ‘strcpy’ and ‘strcpy_s’?
  24. What is uintptr_t data type
  25. const int = int const?
  26. Undefined reference to vtable
  27. In C++, what is a virtual base class?
  28. wntdll.pdb not loaded – Can’t see the exception
  29. Difference between const reference and normal parameter
  30. What is the difference between a static and const variable?
  31. What is move semantics?
  32. unsigned int vs. size_t
  33. error: expected primary-expression before ‘)’ token (C)
  34. What does -> mean in C++?
  35. How to pass optional arguments to a method in C++?
  36. How to copy a string of std::string type in C++?
  37. C++ forbids converting a `string` constant to `char*` – Alphabets to Morse converting program
  38. What is activation record in the context of C and C++?
  39. Static array vs. dynamic array in C++
  40. C++ terminate called after throwing an instance of ‘std::out_of_range’ Simple Averaging code
  41. Error “C++ requires a type specifier for all declarations whilst defining methods”
  42. How to create a dynamically-allocated array of const objects, but have values assigned to them?
  43. Remove an array element and shift the remaining ones
  44. Right way to split an std::string into a vector
  45. string subscript out of range error
  46. push_back vs emplace_back
  47. No operator << matches these operands
  48. Returning an empty string : efficient way in c++
  49. How to find the size of an int[]?
  50. Append an int to a std::string
  51. Decimal to hex conversion c++ built-in function
  52. C++ IDE with repl?
  53. error: use of deleted function
  54. Run C++ in command prompt – Windows
  55. pthread sleep linux
  56. 2D array vs array of arrays
  57. C++ error: definition of implicitly-declared
  58. how to print a string to console in c++
  59. How to call a parent class function from derived class function?
  60. Error: No instance of constructor matches the argument list
  61. How can I get the list of files in a directory using C or C++?
  62. RPN Calculator for C++
  63. What does `Fatal Python error: PyThreadState_Get: no current thread` mean?
  64. Debug Assertion Failed: _CrtIsValidHeapPointer(block)
  65. C++ Convert string (or char*) to wstring (or wchar_t*)
  66. Program received signal SIGSEGV, Segmentation fault
  67. Integer to hex string in C++
  68. Comparison of C++ unit test frameworks
  69. What is the difference between .cc and .cpp file suffix?
  70. C++ error: object of abstract class type is not allowed: pure virtual function has no overrider
  71. Correct way to work with vector of arrays
  72. Error: free(): invalid next size (fast):
  73. Fastest way to Convert String to Binary?
  74. Reading data from file into an array
  75. LINK : fatal error LNK1561: entry point must be defined ERROR IN VC++
  76. Trying to use int in getline
  77. c++ error c2015: too many characters in constant
  78. Splitting a C++ std::string using tokens, e.g. “;”
  79. Py_Initialize fails – unable to load the file system codec
  80. C++ pass an array by reference
  81. error LNK2019: unresolved external symbol “” referenced in function
  82. How to print (using cout) a number in binary form?
  83. What is the job of autogen.sh when building a c++ package on Linux
  84. Using G++ to compile multiple .cpp and .h files
  85. LPCSTR, LPCTSTR and LPTSTR
  86. How to do std::string indexof in C++ that returns index of matching string?
  87. variable or field declared void
  88. Invalid conversion from ‘char’ to ‘const char *’
  89. How do I deal with “signed/unsigned mismatch” warnings (C4018)?
  90. Creating folders in C++
  91. C++ Simple Dice roll – how to return multiple different random numbers [duplicate]
  92. How can I get a file’s size in C++?
  93. Why can’t I make a vector of references?
  94. What does “-Wall” in “g++ -Wall test.cpp -o test” do?
  95. C++ equivalent of StringBuffer/StringBuilder?
  96. heap corruption detected | C++
  97. Update g++ but still old version
  98. module unsafe for SAFESEH image C++
  99. Why are there two different getline() functions (if indeed there are)?
  100. Whats the difference between UInt8 and uint8_t

Leave a Comment