gcc-you can use this code to learn something about gcc, and inquire further into linux,

				// Special g++ Options: -fexceptions				// excess errors test - XFAIL a29k-*-* sparc64-*-elf arm-*-pe								extern "C" int printf(const char *, ...);								void main1() {				  throw 1;				}												int main() {				  try {				    main1();				  } catch (...) {				    printf("Unwind works!\n");				    return 0;				  }				  return 1;				}