Ejemplos de __builtin___memmove_chk en C++ (Cpp)

Ejemplo n.º 1

Archivo: pr50768.c Proyecto: 0day-ci/gcc

void
test1 (void)
{
  char buf[8];
  __builtin___mempcpy_chk (buf, data, l1 ? sizeof (buf) : 4,
			   __builtin_object_size (buf, 0));
  if (__builtin___memmove_chk
      (buf, data, l1 ? sizeof (buf) : 4,
       __builtin_object_size (buf, 0)) != buf)
    __builtin_abort ();
}

Ejemplo n.º 2

Archivo: Wsizeof-pointer-memaccess1.C Proyecto: 0day-ci/gcc

extern inline void *
memmove (void *dest, const void *src, size_t len)
{
  return __builtin___memmove_chk (dest, src, len, bos0 (dest));
}

Ejemplo n.º 3

Archivo: warn-bad-memaccess.cpp Proyecto: ADonut/LLVM-GPGPU

void test_warn() {
  memset(&x1, 0, sizeof x1); // \
      // expected-warning {{destination for this 'memset' call is a pointer to dynamic class}} \
      // expected-note {{explicitly cast the pointer to silence this warning}}
  memset(&x2, 0, sizeof x2); // \
      // expected-warning {{destination for this 'memset' call is a pointer to dynamic class}} \
      // expected-note {{explicitly cast the pointer to silence this warning}}

  memmove(&x1, 0, sizeof x1); // \
      // expected-warning{{destination for this 'memmove' call is a pointer to dynamic class 'struct X1'; vtable pointer will be overwritten}} \
      // expected-note {{explicitly cast the pointer to silence this warning}}
  memmove(0, &x1, sizeof x1); // \
      // expected-warning{{source of this 'memmove' call is a pointer to dynamic class 'struct X1'; vtable pointer will be moved}} \
      // expected-note {{explicitly cast the pointer to silence this warning}}
  memcpy(&x1, 0, sizeof x1); // \
      // expected-warning{{destination for this 'memcpy' call is a pointer to dynamic class 'struct X1'; vtable pointer will be overwritten}} \
      // expected-note {{explicitly cast the pointer to silence this warning}}
  memcpy(0, &x1, sizeof x1); // \
      // expected-warning{{source of this 'memcpy' call is a pointer to dynamic class 'struct X1'; vtable pointer will be copied}} \
      // expected-note {{explicitly cast the pointer to silence this warning}}
  memcmp(&x1, 0, sizeof x1); // \
      // expected-warning{{first operand of this 'memcmp' call is a pointer to dynamic class 'struct X1'; vtable pointer will be compared}} \
      // expected-note {{explicitly cast the pointer to silence this warning}}
  memcmp(0, &x1, sizeof x1); // \
      // expected-warning{{second operand of this 'memcmp' call is a pointer to dynamic class 'struct X1'; vtable pointer will be compared}} \
      // expected-note {{explicitly cast the pointer to silence this warning}}

  __builtin_memset(&x1, 0, sizeof x1); // \
      // expected-warning {{destination for this '__builtin_memset' call is a pointer to dynamic class}} \
      // expected-note {{explicitly cast the pointer to silence this warning}}
  __builtin_memset(&x2, 0, sizeof x2); // \
      // expected-warning {{destination for this '__builtin_memset' call is a pointer to dynamic class}} \
      // expected-note {{explicitly cast the pointer to silence this warning}}

  __builtin_memmove(&x1, 0, sizeof x1); // \
      // expected-warning{{destination for this '__builtin_memmove' call is a pointer to dynamic class}} \
      // expected-note {{explicitly cast the pointer to silence this warning}}
  __builtin_memmove(0, &x1, sizeof x1); // \
      // expected-warning{{source of this '__builtin_memmove' call is a pointer to dynamic class}} \
      // expected-note {{explicitly cast the pointer to silence this warning}}
  __builtin_memcpy(&x1, 0, sizeof x1); // \
      // expected-warning{{destination for this '__builtin_memcpy' call is a pointer to dynamic class}} \
      // expected-note {{explicitly cast the pointer to silence this warning}}
  __builtin_memcpy(0, &x1, sizeof x1); // \
      // expected-warning{{source of this '__builtin_memcpy' call is a pointer to dynamic class}} \
      // expected-note {{explicitly cast the pointer to silence this warning}}

  __builtin___memset_chk(&x1, 0, sizeof x1, sizeof x1); //                    \
      // expected-warning {{destination for this '__builtin___memset_chk' call is a pointer to dynamic class}} \
      // expected-note {{explicitly cast the pointer to silence this warning}}
  __builtin___memset_chk(&x2, 0, sizeof x2, sizeof x2); //                    \
      // expected-warning {{destination for this '__builtin___memset_chk' call is a pointer to dynamic class}} \
      // expected-note {{explicitly cast the pointer to silence this warning}}

  __builtin___memmove_chk(&x1, 0, sizeof x1, sizeof x1); //                   \
      // expected-warning{{destination for this '__builtin___memmove_chk' call is a pointer to dynamic class}} \
      // expected-note {{explicitly cast the pointer to silence this warning}}
  __builtin___memmove_chk(0, &x1, sizeof x1, sizeof x1); //                   \
      // expected-warning{{source of this '__builtin___memmove_chk' call is a pointer to dynamic class}} \
      // expected-note {{explicitly cast the pointer to silence this warning}}
  __builtin___memcpy_chk(&x1, 0, sizeof x1, sizeof x1); //                    \
      // expected-warning{{destination for this '__builtin___memcpy_chk' call is a pointer to dynamic class}} \
      // expected-note {{explicitly cast the pointer to silence this warning}}
  __builtin___memcpy_chk(0, &x1, sizeof x1, sizeof x1); //                    \
      // expected-warning{{source of this '__builtin___memcpy_chk' call is a pointer to dynamic class}} \
      // expected-note {{explicitly cast the pointer to silence this warning}}
}