blob: fe24cddfeaa5f7146ae53769a2b2a9f8585c937b [file] [log] [blame]
// Test -Wsizeof-pointer-memaccess warnings.
// { dg-do compile }
// { dg-options "-Wall -Wno-array-bounds -Wno-sizeof-array-argument -Wno-stringop-overflow -Wno-stringop-overread -Wno-stringop-truncation" }
// Test just twice, once with -O0 non-fortified, once with -O2 fortified,
// suppressing buffer overflow warnings.
// { dg-skip-if "" { *-*-* } { "*" } { "-O0" "-O2" } }
// { dg-skip-if "" { *-*-* } { "-flto" } { "" } }
// { dg-require-effective-target alloca }
extern "C" {
typedef __SIZE_TYPE__ size_t;
extern void *memset (void *, int, size_t);
extern void *memcpy (void *__restrict, const void *__restrict, size_t);
extern void *memmove (void *__restrict, const void *__restrict, size_t);
extern int memcmp (const void *, const void *, size_t);
extern char *strncpy (char *__restrict, const char *__restrict, size_t);
extern char *strncat (char *__restrict, const char *__restrict, size_t);
extern char *stpncpy (char *__restrict, const char *__restrict, size_t);
extern char *strndup (const char *, size_t);
extern int strncmp (const char *, const char *, size_t);
extern int strncasecmp (const char *, const char *, size_t);
#ifdef __OPTIMIZE__
# define bos(ptr) __builtin_object_size (ptr, 1)
# define bos0(ptr) __builtin_object_size (ptr, 0)
__attribute__((__always_inline__, __gnu_inline__, __artificial__))
extern inline void *
memset (void *dest, int c, size_t len)
{
return __builtin___memset_chk (dest, c, len, bos0 (dest));
}
__attribute__((__always_inline__, __gnu_inline__, __artificial__))
extern inline void *
memcpy (void *__restrict dest, const void *__restrict src, size_t len)
{
return __builtin___memcpy_chk (dest, src, len, bos0 (dest));
}
__attribute__((__always_inline__, __gnu_inline__, __artificial__))
extern inline void *
memmove (void *dest, const void *src, size_t len)
{
return __builtin___memmove_chk (dest, src, len, bos0 (dest));
}
__attribute__((__always_inline__, __gnu_inline__, __artificial__))
extern inline char *
strncpy (char *__restrict dest, const char *__restrict src, size_t len)
{
return __builtin___strncpy_chk (dest, src, len, bos (dest));
}
__attribute__((__always_inline__, __gnu_inline__, __artificial__))
extern inline char *
strncat (char *dest, const char *src, size_t len)
{
return __builtin___strncat_chk (dest, src, len, bos (dest));
}
__attribute__((__always_inline__, __gnu_inline__, __artificial__))
extern inline char *
stpncpy (char *__restrict dest, const char *__restrict src, size_t len)
{
return __builtin___stpncpy_chk (dest, src, len, bos (dest));
}
#endif
}
struct A { short a, b; int c, d; long e, f; };
typedef struct A TA;
typedef struct A *PA;
typedef TA *PTA;
struct B {};
typedef struct B TB;
typedef struct B *PB;
typedef TB *PTB;
typedef int X[3][3][3];
template <int N>
int
f1 (void *x, int z)
{
struct A a, *pa1 = &a;
TA *pa2 = &a;
PA pa3 = &a;
PTA pa4 = &a;
memset (&a, 0, sizeof (&a)); // { dg-warning "call is the same expression as the destination; did you mean to remove the addressof" }
memset (pa1, 0, sizeof (pa1)); // { dg-warning "call is the same expression as the destination; did you mean to dereference it" }
memset (pa2, 0, sizeof pa2); // { dg-warning "call is the same expression as the destination; did you mean to dereference it" }
memset (pa3, 0, sizeof (pa3)); // { dg-warning "call is the same expression as the destination; did you mean to dereference it" }
memset (pa4, 0, sizeof pa4); // { dg-warning "call is the same expression as the destination; did you mean to dereference it" }
memset (pa1, 0, sizeof (struct A *)); // { dg-warning "call is the same pointer type \[^\n\r\]* as the destination; expected \[^\n\r\]* or an explicit length" }
memset (pa2, 0, sizeof (PTA)); // { dg-warning "call is the same pointer type \[^\n\r\]* as the destination; expected \[^\n\r\]* or an explicit length" }
memset (pa3, 0, sizeof (PA)); // { dg-warning "call is the same pointer type \[^\n\r\]* as the destination; expected \[^\n\r\]* or an explicit length" }
memset (pa4, 0, sizeof (__typeof (pa4))); // { dg-warning "call is the same pointer type \[^\n\r\]* as the destination; expected \[^\n\r\]* or an explicit length" }
memcpy (&a, x, sizeof (&a)); // { dg-warning "call is the same expression as the destination; did you mean to remove the addressof" }
memcpy (pa1, x, sizeof (pa1)); // { dg-warning "call is the same expression as the destination; did you mean to dereference it" }
memcpy (pa2, x, sizeof pa2); // { dg-warning "call is the same expression as the destination; did you mean to dereference it" }
memcpy (pa3, x, sizeof (pa3)); // { dg-warning "call is the same expression as the destination; did you mean to dereference it" }
memcpy (pa4, x, sizeof pa4); // { dg-warning "call is the same expression as the destination; did you mean to dereference it" }
memcpy (pa1, x, sizeof (struct A *)); // { dg-warning "call is the same pointer type \[^\n\r\]* as the destination; expected \[^\n\r\]* or an explicit length" }
memcpy (pa2, x, sizeof (PTA)); // { dg-warning "call is the same pointer type \[^\n\r\]* as the destination; expected \[^\n\r\]* or an explicit length" }
memcpy (pa3, x, sizeof (PA)); // { dg-warning "call is the same pointer type \[^\n\r\]* as the destination; expected \[^\n\r\]* or an explicit length" }
memcpy (pa4, x, sizeof (__typeof (pa4))); // { dg-warning "call is the same pointer type \[^\n\r\]* as the destination; expected \[^\n\r\]* or an explicit length" }
memcpy (x, &a, sizeof (&a)); // { dg-warning "call is the same expression as the source; did you mean to remove the addressof" }
memcpy (x, pa1, sizeof (pa1)); // { dg-warning "call is the same expression as the source; did you mean to dereference it" }
memcpy (x, pa2, sizeof pa2); // { dg-warning "call is the same expression as the source; did you mean to dereference it" }
memcpy (x, pa3, sizeof (pa3)); // { dg-warning "call is the same expression as the source; did you mean to dereference it" }
memcpy (x, pa4, sizeof pa4); // { dg-warning "call is the same expression as the source; did you mean to dereference it" }
memcpy (x, pa1, sizeof (struct A *)); // { dg-warning "call is the same pointer type \[^\n\r\]* as the source; expected \[^\n\r\]* or an explicit length" }
memcpy (x, pa2, sizeof (PTA)); // { dg-warning "call is the same pointer type \[^\n\r\]* as the source; expected \[^\n\r\]* or an explicit length" }
memcpy (x, pa3, sizeof (PA)); // { dg-warning "call is the same pointer type \[^\n\r\]* as the source; expected \[^\n\r\]* or an explicit length" }
memcpy (x, pa4, sizeof (__typeof (pa4))); // { dg-warning "call is the same pointer type \[^\n\r\]* as the source; expected \[^\n\r\]* or an explicit length" }
memmove (&a, x, sizeof (&a)); // { dg-warning "call is the same expression as the destination; did you mean to remove the addressof" }
memmove (pa1, x, sizeof (pa1)); // { dg-warning "call is the same expression as the destination; did you mean to dereference it" }
memmove (pa2, x, sizeof pa2); // { dg-warning "call is the same expression as the destination; did you mean to dereference it" }
memmove (pa3, x, sizeof (pa3)); // { dg-warning "call is the same expression as the destination; did you mean to dereference it" }
memmove (pa4, x, sizeof pa4); // { dg-warning "call is the same expression as the destination; did you mean to dereference it" }
memmove (pa1, x, sizeof (struct A *)); // { dg-warning "call is the same pointer type \[^\n\r\]* as the destination; expected \[^\n\r\]* or an explicit length" }
memmove (pa2, x, sizeof (PTA)); // { dg-warning "call is the same pointer type \[^\n\r\]* as the destination; expected \[^\n\r\]* or an explicit length" }
memmove (pa3, x, sizeof (PA)); // { dg-warning "call is the same pointer type \[^\n\r\]* as the destination; expected \[^\n\r\]* or an explicit length" }
memmove (pa4, x, sizeof (__typeof (pa4)));// { dg-warning "call is the same pointer type \[^\n\r\]* as the destination; expected \[^\n\r\]* or an explicit length" }
memmove (x, &a, sizeof (&a)); // { dg-warning "call is the same expression as the source; did you mean to remove the addressof" }
memmove (x, pa1, sizeof (pa1)); // { dg-warning "call is the same expression as the source; did you mean to dereference it" }
memmove (x, pa2, sizeof pa2); // { dg-warning "call is the same expression as the source; did you mean to dereference it" }
memmove (x, pa3, sizeof (pa3)); // { dg-warning "call is the same expression as the source; did you mean to dereference it" }
memmove (x, pa4, sizeof pa4); // { dg-warning "call is the same expression as the source; did you mean to dereference it" }
memmove (x, pa1, sizeof (struct A *)); // { dg-warning "call is the same pointer type \[^\n\r\]* as the source; expected \[^\n\r\]* or an explicit length" }
memmove (x, pa2, sizeof (PTA)); // { dg-warning "call is the same pointer type \[^\n\r\]* as the source; expected \[^\n\r\]* or an explicit length" }
memmove (x, pa3, sizeof (PA)); // { dg-warning "call is the same pointer type \[^\n\r\]* as the source; expected \[^\n\r\]* or an explicit length" }
memmove (x, pa4, sizeof (__typeof (pa4)));// { dg-warning "call is the same pointer type \[^\n\r\]* as the source; expected \[^\n\r\]* or an explicit length" }
z += memcmp (&a, x, sizeof (&a)); // { dg-warning "call is the same expression as the first source; did you mean to remove the addressof" }
z += memcmp (pa1, x, sizeof (pa1)); // { dg-warning "call is the same expression as the first source; did you mean to dereference it" }
z += memcmp (pa2, x, sizeof pa2); // { dg-warning "call is the same expression as the first source; did you mean to dereference it" }
z += memcmp (pa3, x, sizeof (pa3)); // { dg-warning "call is the same expression as the first source; did you mean to dereference it" }
z += memcmp (pa4, x, sizeof pa4); // { dg-warning "call is the same expression as the first source; did you mean to dereference it" }
z += memcmp (pa1, x, sizeof (struct A *));// { dg-warning "call is the same pointer type \[^\n\r\]* as the first source; expected \[^\n\r\]* or an explicit length" }
z += memcmp (pa2, x, sizeof (PTA)); // { dg-warning "call is the same pointer type \[^\n\r\]* as the first source; expected \[^\n\r\]* or an explicit length" }
z += memcmp (pa3, x, sizeof (PA)); // { dg-warning "call is the same pointer type \[^\n\r\]* as the first source; expected \[^\n\r\]* or an explicit length" }
z += memcmp (x, &a, sizeof (&a)); // { dg-warning "call is the same expression as the second source; did you mean to remove the addressof" }
z += memcmp (x, pa1, sizeof (pa1)); // { dg-warning "call is the same expression as the second source; did you mean to dereference it" }
z += memcmp (x, pa2, sizeof pa2); // { dg-warning "call is the same expression as the second source; did you mean to dereference it" }
z += memcmp (x, pa3, sizeof (pa3)); // { dg-warning "call is the same expression as the second source; did you mean to dereference it" }
z += memcmp (x, pa4, sizeof pa4); // { dg-warning "call is the same expression as the second source; did you mean to dereference it" }
z += memcmp (x, pa1, sizeof (struct A *));// { dg-warning "call is the same pointer type \[^\n\r\]* as the second source; expected \[^\n\r\]* or an explicit length" }
z += memcmp (x, pa2, sizeof (PTA)); // { dg-warning "call is the same pointer type \[^\n\r\]* as the second source; expected \[^\n\r\]* or an explicit length" }
z += memcmp (x, pa3, sizeof (PA)); // { dg-warning "call is the same pointer type \[^\n\r\]* as the second source; expected \[^\n\r\]* or an explicit length" }
// These are correct, no warning.
memset (&a, 0, sizeof a);
memset (&a, 0, sizeof (a));
memset (&a, 0, sizeof (struct A));
memset (&a, 0, sizeof (const struct A));
memset (&a, 0, sizeof (volatile struct A));
memset (&a, 0, sizeof (volatile const struct A));
memset (&a, 0, sizeof (TA));
memset (&a, 0, sizeof (__typeof (*&a)));
memset (pa1, 0, sizeof (*pa1));
memset (pa2, 0, sizeof (*pa3));
memset (pa3, 0, sizeof (__typeof (*pa3)));
// These are probably broken, but obfuscated, no warning.
memset ((void *) &a, 0, sizeof (&a));
memset ((char *) &a, 0, sizeof (&a));
memset (&a, 0, sizeof (&a) + 0);
memset (&a, 0, 0 + sizeof (&a));
// These are correct, no warning.
memcpy (&a, x, sizeof a);
memcpy (&a, x, sizeof (a));
memcpy (&a, x, sizeof (struct A));
memcpy (&a, x, sizeof (const struct A));
memcpy (&a, x, sizeof (volatile struct A));
memcpy (&a, x, sizeof (volatile const struct A));
memcpy (&a, x, sizeof (TA));
memcpy (&a, x, sizeof (__typeof (*&a)));
memcpy (pa1, x, sizeof (*pa1));
memcpy (pa2, x, sizeof (*pa3));
memcpy (pa3, x, sizeof (__typeof (*pa3)));
// These are probably broken, but obfuscated, no warning.
memcpy ((void *) &a, x, sizeof (&a));
memcpy ((char *) &a, x, sizeof (&a));
memcpy (&a, x, sizeof (&a) + 0);
memcpy (&a, x, 0 + sizeof (&a));
// These are correct, no warning.
memcpy (x, &a, sizeof a);
memcpy (x, &a, sizeof (a));
memcpy (x, &a, sizeof (struct A));
memcpy (x, &a, sizeof (const struct A));
memcpy (x, &a, sizeof (volatile struct A));
memcpy (x, &a, sizeof (volatile const struct A));
memcpy (x, &a, sizeof (TA));
memcpy (x, &a, sizeof (__typeof (*&a)));
memcpy (x, pa1, sizeof (*pa1));
memcpy (x, pa2, sizeof (*pa3));
memcpy (x, pa3, sizeof (__typeof (*pa3)));
// These are probably broken, but obfuscated, no warning.
memcpy (x, (void *) &a, sizeof (&a));
memcpy (x, (char *) &a, sizeof (&a));
memcpy (x, &a, sizeof (&a) + 0);
memcpy (x, &a, 0 + sizeof (&a));
// These are correct, no warning.
memmove (&a, x, sizeof a);
memmove (&a, x, sizeof (a));
memmove (&a, x, sizeof (struct A));
memmove (&a, x, sizeof (const struct A));
memmove (&a, x, sizeof (volatile struct A));
memmove (&a, x, sizeof (volatile const struct A));
memmove (&a, x, sizeof (TA));
memmove (&a, x, sizeof (__typeof (*&a)));
memmove (pa1, x, sizeof (*pa1));
memmove (pa2, x, sizeof (*pa3));
memmove (pa3, x, sizeof (__typeof (*pa3)));
// These are probably broken, but obfuscated, no warning.
memmove ((void *) &a, x, sizeof (&a));
memmove ((char *) &a, x, sizeof (&a));
memmove (&a, x, sizeof (&a) + 0);
memmove (&a, x, 0 + sizeof (&a));
// These are correct, no warning.
memmove (x, &a, sizeof a);
memmove (x, &a, sizeof (a));
memmove (x, &a, sizeof (struct A));
memmove (x, &a, sizeof (const struct A));
memmove (x, &a, sizeof (volatile struct A));
memmove (x, &a, sizeof (volatile const struct A));
memmove (x, &a, sizeof (TA));
memmove (x, &a, sizeof (__typeof (*&a)));
memmove (x, pa1, sizeof (*pa1));
memmove (x, pa2, sizeof (*pa3));
memmove (x, pa3, sizeof (__typeof (*pa3)));
// These are probably broken, but obfuscated, no warning.
memmove (x, (void *) &a, sizeof (&a));
memmove (x, (char *) &a, sizeof (&a));
memmove (x, &a, sizeof (&a) + 0);
memmove (x, &a, 0 + sizeof (&a));
// These are correct, no warning.
z += memcmp (&a, x, sizeof a);
z += memcmp (&a, x, sizeof (a));
z += memcmp (&a, x, sizeof (struct A));
z += memcmp (&a, x, sizeof (const struct A));
z += memcmp (&a, x, sizeof (volatile struct A));
z += memcmp (&a, x, sizeof (volatile const struct A));
z += memcmp (&a, x, sizeof (TA));
z += memcmp (&a, x, sizeof (__typeof (*&a)));
z += memcmp (pa1, x, sizeof (*pa1));
z += memcmp (pa2, x, sizeof (*pa3));
z += memcmp (pa3, x, sizeof (__typeof (*pa3)));
// These are probably broken, but obfuscated, no warning.
z += memcmp ((void *) &a, x, sizeof (&a));
z += memcmp ((char *) &a, x, sizeof (&a));
z += memcmp (&a, x, sizeof (&a) + 0);
z += memcmp (&a, x, 0 + sizeof (&a));
// These are correct, no warning.
z += memcmp (x, &a, sizeof a);
z += memcmp (x, &a, sizeof (a));
z += memcmp (x, &a, sizeof (struct A));
z += memcmp (x, &a, sizeof (const struct A));
z += memcmp (x, &a, sizeof (volatile struct A));
z += memcmp (x, &a, sizeof (volatile const struct A));
z += memcmp (x, &a, sizeof (TA));
z += memcmp (x, &a, sizeof (__typeof (*&a)));
z += memcmp (x, pa1, sizeof (*pa1));
z += memcmp (x, pa2, sizeof (*pa3));
z += memcmp (x, pa3, sizeof (__typeof (*pa3)));
// These are probably broken, but obfuscated, no warning.
z += memcmp (x, (void *) &a, sizeof (&a));
z += memcmp (x, (char *) &a, sizeof (&a));
z += memcmp (x, &a, sizeof (&a) + 0);
z += memcmp (x, &a, 0 + sizeof (&a));
return z;
}
template <int N>
int
f2 (void *x, int z)
{
struct B b, *pb1 = &b;
TB *pb2 = &b;
PB pb3 = &b;
PTB pb4 = &b;
memset (&b, 0, sizeof (&b)); // { dg-warning "call is the same expression as the destination; did you mean to remove the addressof" }
memset (pb1, 0, sizeof (pb1)); // { dg-warning "call is the same expression as the destination; did you mean to dereference it" }
memset (pb2, 0, sizeof pb2); // { dg-warning "call is the same expression as the destination; did you mean to dereference it" }
memset (pb3, 0, sizeof (pb3)); // { dg-warning "call is the same expression as the destination; did you mean to dereference it" }
memset (pb4, 0, sizeof pb4); // { dg-warning "call is the same expression as the destination; did you mean to dereference it" }
memset (pb1, 0, sizeof (struct B *)); // { dg-warning "call is the same pointer type \[^\n\r\]* as the destination; expected \[^\n\r\]* or an explicit length" }
memset (pb2, 0, sizeof (PTB)); // { dg-warning "call is the same pointer type \[^\n\r\]* as the destination; expected \[^\n\r\]* or an explicit length" }
memset (pb3, 0, sizeof (PB)); // { dg-warning "call is the same pointer type \[^\n\r\]* as the destination; expected \[^\n\r\]* or an explicit length" }
memset (pb4, 0, sizeof (__typeof (pb4))); // { dg-warning "call is the same pointer type \[^\n\r\]* as the destination; expected \[^\n\r\]* or an explicit length" }
memcpy (&b, x, sizeof (&b)); // { dg-warning "call is the same expression as the destination; did you mean to remove the addressof" }
memcpy (pb1, x, sizeof (pb1)); // { dg-warning "call is the same expression as the destination; did you mean to dereference it" }
memcpy (pb2, x, sizeof pb2); // { dg-warning "call is the same expression as the destination; did you mean to dereference it" }
memcpy (pb3, x, sizeof (pb3)); // { dg-warning "call is the same expression as the destination; did you mean to dereference it" }
memcpy (pb4, x, sizeof pb4); // { dg-warning "call is the same expression as the destination; did you mean to dereference it" }
memcpy (pb1, x, sizeof (struct B *)); // { dg-warning "call is the same pointer type \[^\n\r\]* as the destination; expected \[^\n\r\]* or an explicit length" }
memcpy (pb2, x, sizeof (PTB)); // { dg-warning "call is the same pointer type \[^\n\r\]* as the destination; expected \[^\n\r\]* or an explicit length" }
memcpy (pb3, x, sizeof (PB)); // { dg-warning "call is the same pointer type \[^\n\r\]* as the destination; expected \[^\n\r\]* or an explicit length" }
memcpy (pb4, x, sizeof (__typeof (pb4))); // { dg-warning "call is the same pointer type \[^\n\r\]* as the destination; expected \[^\n\r\]* or an explicit length" }
memcpy (x, &b, sizeof (&b)); // { dg-warning "call is the same expression as the source; did you mean to remove the addressof" }
memcpy (x, pb1, sizeof (pb1)); // { dg-warning "call is the same expression as the source; did you mean to dereference it" }
memcpy (x, pb2, sizeof pb2); // { dg-warning "call is the same expression as the source; did you mean to dereference it" }
memcpy (x, pb3, sizeof (pb3)); // { dg-warning "call is the same expression as the source; did you mean to dereference it" }
memcpy (x, pb4, sizeof pb4); // { dg-warning "call is the same expression as the source; did you mean to dereference it" }
memcpy (x, pb1, sizeof (struct B *)); // { dg-warning "call is the same pointer type \[^\n\r\]* as the source; expected \[^\n\r\]* or an explicit length" }
memcpy (x, pb2, sizeof (PTB)); // { dg-warning "call is the same pointer type \[^\n\r\]* as the source; expected \[^\n\r\]* or an explicit length" }
memcpy (x, pb3, sizeof (PB)); // { dg-warning "call is the same pointer type \[^\n\r\]* as the source; expected \[^\n\r\]* or an explicit length" }
memcpy (x, pb4, sizeof (__typeof (pb4))); // { dg-warning "call is the same pointer type \[^\n\r\]* as the source; expected \[^\n\r\]* or an explicit length" }
memmove (&b, x, sizeof (&b)); // { dg-warning "call is the same expression as the destination; did you mean to remove the addressof" }
memmove (pb1, x, sizeof (pb1)); // { dg-warning "call is the same expression as the destination; did you mean to dereference it" }
memmove (pb2, x, sizeof pb2); // { dg-warning "call is the same expression as the destination; did you mean to dereference it" }
memmove (pb3, x, sizeof (pb3)); // { dg-warning "call is the same expression as the destination; did you mean to dereference it" }
memmove (pb4, x, sizeof pb4); // { dg-warning "call is the same expression as the destination; did you mean to dereference it" }
memmove (pb1, x, sizeof (struct B *)); // { dg-warning "call is the same pointer type \[^\n\r\]* as the destination; expected \[^\n\r\]* or an explicit length" }
memmove (pb2, x, sizeof (PTB)); // { dg-warning "call is the same pointer type \[^\n\r\]* as the destination; expected \[^\n\r\]* or an explicit length" }
memmove (pb3, x, sizeof (PB)); // { dg-warning "call is the same pointer type \[^\n\r\]* as the destination; expected \[^\n\r\]* or an explicit length" }
memmove (pb4, x, sizeof (__typeof (pb4)));// { dg-warning "call is the same pointer type \[^\n\r\]* as the destination; expected \[^\n\r\]* or an explicit length" }
memmove (x, &b, sizeof (&b)); // { dg-warning "call is the same expression as the source; did you mean to remove the addressof" }
memmove (x, pb1, sizeof (pb1)); // { dg-warning "call is the same expression as the source; did you mean to dereference it" }
memmove (x, pb2, sizeof pb2); // { dg-warning "call is the same expression as the source; did you mean to dereference it" }
memmove (x, pb3, sizeof (pb3)); // { dg-warning "call is the same expression as the source; did you mean to dereference it" }
memmove (x, pb4, sizeof pb4); // { dg-warning "call is the same expression as the source; did you mean to dereference it" }
memmove (x, pb1, sizeof (struct B *)); // { dg-warning "call is the same pointer type \[^\n\r\]* as the source; expected \[^\n\r\]* or an explicit length" }
memmove (x, pb2, sizeof (PTB)); // { dg-warning "call is the same pointer type \[^\n\r\]* as the source; expected \[^\n\r\]* or an explicit length" }
memmove (x, pb3, sizeof (PB)); // { dg-warning "call is the same pointer type \[^\n\r\]* as the source; expected \[^\n\r\]* or an explicit length" }
memmove (x, pb4, sizeof (__typeof (pb4)));// { dg-warning "call is the same pointer type \[^\n\r\]* as the source; expected \[^\n\r\]* or an explicit length" }
z += memcmp (&b, x, sizeof (&b)); // { dg-warning "call is the same expression as the first source; did you mean to remove the addressof" }
z += memcmp (pb1, x, sizeof (pb1)); // { dg-warning "call is the same expression as the first source; did you mean to dereference it" }
z += memcmp (pb2, x, sizeof pb2); // { dg-warning "call is the same expression as the first source; did you mean to dereference it" }
z += memcmp (pb3, x, sizeof (pb3)); // { dg-warning "call is the same expression as the first source; did you mean to dereference it" }
z += memcmp (pb4, x, sizeof pb4); // { dg-warning "call is the same expression as the first source; did you mean to dereference it" }
z += memcmp (pb1, x, sizeof (struct B *));// { dg-warning "call is the same pointer type \[^\n\r\]* as the first source; expected \[^\n\r\]* or an explicit length" }
z += memcmp (pb2, x, sizeof (PTB)); // { dg-warning "call is the same pointer type \[^\n\r\]* as the first source; expected \[^\n\r\]* or an explicit length" }
z += memcmp (pb3, x, sizeof (PB)); // { dg-warning "call is the same pointer type \[^\n\r\]* as the first source; expected \[^\n\r\]* or an explicit length" }
z += memcmp (x, &b, sizeof (&b)); // { dg-warning "call is the same expression as the second source; did you mean to remove the addressof" }
z += memcmp (x, pb1, sizeof (pb1)); // { dg-warning "call is the same expression as the second source; did you mean to dereference it" }
z += memcmp (x, pb2, sizeof pb2); // { dg-warning "call is the same expression as the second source; did you mean to dereference it" }
z += memcmp (x, pb3, sizeof (pb3)); // { dg-warning "call is the same expression as the second source; did you mean to dereference it" }
z += memcmp (x, pb4, sizeof pb4); // { dg-warning "call is the same expression as the second source; did you mean to dereference it" }
z += memcmp (x, pb1, sizeof (struct B *));// { dg-warning "call is the same pointer type \[^\n\r\]* as the second source; expected \[^\n\r\]* or an explicit length" }
z += memcmp (x, pb2, sizeof (PTB)); // { dg-warning "call is the same pointer type \[^\n\r\]* as the second source; expected \[^\n\r\]* or an explicit length" }
z += memcmp (x, pb3, sizeof (PB)); // { dg-warning "call is the same pointer type \[^\n\r\]* as the second source; expected \[^\n\r\]* or an explicit length" }
// These are correct, no warning.
memset (&b, 0, sizeof b);
memset (&b, 0, sizeof (b));
memset (&b, 0, sizeof (struct B));
memset (&b, 0, sizeof (const struct B));
memset (&b, 0, sizeof (volatile struct B));
memset (&b, 0, sizeof (volatile const struct B));
memset (&b, 0, sizeof (TB));
memset (&b, 0, sizeof (__typeof (*&b)));
memset (pb1, 0, sizeof (*pb1));
memset (pb2, 0, sizeof (*pb3));
memset (pb3, 0, sizeof (__typeof (*pb3)));
// These are probably broken, but obfuscated, no warning.
memset ((void *) &b, 0, sizeof (&b));
memset ((char *) &b, 0, sizeof (&b));
memset (&b, 0, sizeof (&b) + 0);
memset (&b, 0, 0 + sizeof (&b));
// These are correct, no warning.
memcpy (&b, x, sizeof b);
memcpy (&b, x, sizeof (b));
memcpy (&b, x, sizeof (struct B));
memcpy (&b, x, sizeof (const struct B));
memcpy (&b, x, sizeof (volatile struct B));
memcpy (&b, x, sizeof (volatile const struct B));
memcpy (&b, x, sizeof (TB));
memcpy (&b, x, sizeof (__typeof (*&b)));
memcpy (pb1, x, sizeof (*pb1));
memcpy (pb2, x, sizeof (*pb3));
memcpy (pb3, x, sizeof (__typeof (*pb3)));
// These are probably broken, but obfuscated, no warning.
memcpy ((void *) &b, x, sizeof (&b));
memcpy ((char *) &b, x, sizeof (&b));
memcpy (&b, x, sizeof (&b) + 0);
memcpy (&b, x, 0 + sizeof (&b));
// These are correct, no warning.
memcpy (x, &b, sizeof b);
memcpy (x, &b, sizeof (b));
memcpy (x, &b, sizeof (struct B));
memcpy (x, &b, sizeof (const struct B));
memcpy (x, &b, sizeof (volatile struct B));
memcpy (x, &b, sizeof (volatile const struct B));
memcpy (x, &b, sizeof (TB));
memcpy (x, &b, sizeof (__typeof (*&b)));
memcpy (x, pb1, sizeof (*pb1));
memcpy (x, pb2, sizeof (*pb3));
memcpy (x, pb3, sizeof (__typeof (*pb3)));
// These are probably broken, but obfuscated, no warning.
memcpy (x, (void *) &b, sizeof (&b));
memcpy (x, (char *) &b, sizeof (&b));
memcpy (x, &b, sizeof (&b) + 0);
memcpy (x, &b, 0 + sizeof (&b));
// These are correct, no warning.
memmove (&b, x, sizeof b);
memmove (&b, x, sizeof (b));
memmove (&b, x, sizeof (struct B));
memmove (&b, x, sizeof (const struct B));
memmove (&b, x, sizeof (volatile struct B));
memmove (&b, x, sizeof (volatile const struct B));
memmove (&b, x, sizeof (TB));
memmove (&b, x, sizeof (__typeof (*&b)));
memmove (pb1, x, sizeof (*pb1));
memmove (pb2, x, sizeof (*pb3));
memmove (pb3, x, sizeof (__typeof (*pb3)));
// These are probably broken, but obfuscated, no warning.
memmove ((void *) &b, x, sizeof (&b));
memmove ((char *) &b, x, sizeof (&b));
memmove (&b, x, sizeof (&b) + 0);
memmove (&b, x, 0 + sizeof (&b));
// These are correct, no warning.
memmove (x, &b, sizeof b);
memmove (x, &b, sizeof (b));
memmove (x, &b, sizeof (struct B));
memmove (x, &b, sizeof (const struct B));
memmove (x, &b, sizeof (volatile struct B));
memmove (x, &b, sizeof (volatile const struct B));
memmove (x, &b, sizeof (TB));
memmove (x, &b, sizeof (__typeof (*&b)));
memmove (x, pb1, sizeof (*pb1));
memmove (x, pb2, sizeof (*pb3));
memmove (x, pb3, sizeof (__typeof (*pb3)));
// These are probably broken, but obfuscated, no warning.
memmove (x, (void *) &b, sizeof (&b));
memmove (x, (char *) &b, sizeof (&b));
memmove (x, &b, sizeof (&b) + 0);
memmove (x, &b, 0 + sizeof (&b));
// These are correct, no warning.
z += memcmp (&b, x, sizeof b);
z += memcmp (&b, x, sizeof (b));
z += memcmp (&b, x, sizeof (struct B));
z += memcmp (&b, x, sizeof (const struct B));
z += memcmp (&b, x, sizeof (volatile struct B));
z += memcmp (&b, x, sizeof (volatile const struct B));
z += memcmp (&b, x, sizeof (TB));
z += memcmp (&b, x, sizeof (__typeof (*&b)));
z += memcmp (pb1, x, sizeof (*pb1));
z += memcmp (pb2, x, sizeof (*pb3));
z += memcmp (pb3, x, sizeof (__typeof (*pb3)));
// These are probably broken, but obfuscated, no warning.
z += memcmp ((void *) &b, x, sizeof (&b));
z += memcmp ((char *) &b, x, sizeof (&b));
z += memcmp (&b, x, sizeof (&b) + 0);
z += memcmp (&b, x, 0 + sizeof (&b));
// These are correct, no warning.
z += memcmp (x, &b, sizeof b);
z += memcmp (x, &b, sizeof (b));
z += memcmp (x, &b, sizeof (struct B));
z += memcmp (x, &b, sizeof (const struct B));
z += memcmp (x, &b, sizeof (volatile struct B));
z += memcmp (x, &b, sizeof (volatile const struct B));
z += memcmp (x, &b, sizeof (TB));
z += memcmp (x, &b, sizeof (__typeof (*&b)));
z += memcmp (x, pb1, sizeof (*pb1));
z += memcmp (x, pb2, sizeof (*pb3));
z += memcmp (x, pb3, sizeof (__typeof (*pb3)));
// These are probably broken, but obfuscated, no warning.
z += memcmp (x, (void *) &b, sizeof (&b));
z += memcmp (x, (char *) &b, sizeof (&b));
z += memcmp (x, &b, sizeof (&b) + 0);
z += memcmp (x, &b, 0 + sizeof (&b));
return z;
}
template <int N>
int
f3 (void *x, char *y, int z, X w)
{
unsigned char *y1 = (unsigned char *) __builtin_alloca (z + 16);
char buf1[7];
signed char buf2[z + 32];
long buf3[17];
int *buf4[9];
signed char *y2 = buf2;
char c;
char *y3;
memset (y, 0, sizeof (y)); // { dg-warning "call is the same expression as the destination; did you mean to provide an explicit length" }
memset (y1, 0, sizeof (y1)); // { dg-warning "call is the same expression as the destination; did you mean to provide an explicit length" }
memset (y2, 0, sizeof (y2)); // { dg-warning "call is the same expression as the destination; did you mean to provide an explicit length" }
memset (&c, 0, sizeof (&c)); // { dg-warning "call is the same expression as the destination; did you mean to remove the addressof" }
memset (w, 0, sizeof w); // { dg-warning "call is the same expression as the destination; did you mean to dereference it" }
memcpy (y, x, sizeof (y)); // { dg-warning "call is the same expression as the destination; did you mean to provide an explicit length" }
memcpy (y1, x, sizeof (y1)); // { dg-warning "call is the same expression as the destination; did you mean to provide an explicit length" }
memcpy (y2, x, sizeof (y2)); // { dg-warning "call is the same expression as the destination; did you mean to provide an explicit length" }
memcpy (&c, x, sizeof (&c)); // { dg-warning "call is the same expression as the destination; did you mean to remove the addressof" }
memcpy (w, x, sizeof w); // { dg-warning "call is the same expression as the destination; did you mean to dereference it" }
memcpy (x, y, sizeof (y)); // { dg-warning "call is the same expression as the source; did you mean to provide an explicit length" }
memcpy (x, y1, sizeof (y1)); // { dg-warning "call is the same expression as the source; did you mean to provide an explicit length" }
memcpy (x, y2, sizeof (y2)); // { dg-warning "call is the same expression as the source; did you mean to provide an explicit length" }
memcpy (x, &c, sizeof (&c)); // { dg-warning "call is the same expression as the source; did you mean to remove the addressof" }
memcpy (x, w, sizeof w); // { dg-warning "call is the same expression as the source; did you mean to dereference it" }
memmove (y, x, sizeof (y)); // { dg-warning "call is the same expression as the destination; did you mean to provide an explicit length" }
memmove (y1, x, sizeof (y1)); // { dg-warning "call is the same expression as the destination; did you mean to provide an explicit length" }
memmove (y2, x, sizeof (y2)); // { dg-warning "call is the same expression as the destination; did you mean to provide an explicit length" }
memmove (&c, x, sizeof (&c)); // { dg-warning "call is the same expression as the destination; did you mean to remove the addressof" }
memmove (w, x, sizeof w); // { dg-warning "call is the same expression as the destination; did you mean to dereference it" }
memmove (x, y, sizeof (y)); // { dg-warning "call is the same expression as the source; did you mean to provide an explicit length" }
memmove (x, y1, sizeof (y1)); // { dg-warning "call is the same expression as the source; did you mean to provide an explicit length" }
memmove (x, y2, sizeof (y2)); // { dg-warning "call is the same expression as the source; did you mean to provide an explicit length" }
memmove (x, &c, sizeof (&c)); // { dg-warning "call is the same expression as the source; did you mean to remove the addressof" }
memmove (x, w, sizeof w); // { dg-warning "call is the same expression as the source; did you mean to dereference it" }
z += memcmp (y, x, sizeof (y)); // { dg-warning "call is the same expression as the first source; did you mean to provide an explicit length" }
z += memcmp (y1, x, sizeof (y1)); // { dg-warning "call is the same expression as the first source; did you mean to provide an explicit length" }
z += memcmp (y2, x, sizeof (y2)); // { dg-warning "call is the same expression as the first source; did you mean to provide an explicit length" }
z += memcmp (&c, x, sizeof (&c)); // { dg-warning "call is the same expression as the first source; did you mean to remove the addressof" }
z += memcmp (w, x, sizeof w); // { dg-warning "call is the same expression as the first source; did you mean to dereference it" }
z += memcmp (x, y, sizeof (y)); // { dg-warning "call is the same expression as the second source; did you mean to provide an explicit length" }
z += memcmp (x, y1, sizeof (y1)); // { dg-warning "call is the same expression as the second source; did you mean to provide an explicit length" }
z += memcmp (x, y2, sizeof (y2)); // { dg-warning "call is the same expression as the second source; did you mean to provide an explicit length" }
z += memcmp (x, &c, sizeof (&c)); // { dg-warning "call is the same expression as the second source; did you mean to remove the addressof" }
z += memcmp (x, w, sizeof w); // { dg-warning "call is the same expression as the second source; did you mean to dereference it" }
// These are correct, no warning.
memset (y, 0, sizeof (*y));
memset (y1, 0, sizeof (*y2));
memset (buf1, 0, sizeof buf1);
memset (buf3, 0, sizeof (buf3));
memset (&buf3[0], 0, sizeof (buf3));
memset (&buf4[0], 0, sizeof (buf4));
memset (w, 0, sizeof (X));
// These are probably broken, but obfuscated, no warning.
memset ((void *) y, 0, sizeof (y));
memset ((char *) y1, 0, sizeof (y2));
memset (y, 0, sizeof (y) + 0);
memset (y1, 0, 0 + sizeof (y2));
memset ((void *) &c, 0, sizeof (&c));
memset ((signed char *) &c, 0, sizeof (&c));
memset (&c, 0, sizeof (&c) + 0);
memset (&c, 0, 0 + sizeof (&c));
// These are correct, no warning.
memcpy (y, x, sizeof (*y));
memcpy (y1, x, sizeof (*y2));
memcpy (buf1, x, sizeof buf1);
memcpy (buf3, x, sizeof (buf3));
memcpy (&buf3[0], x, sizeof (buf3));
memcpy (&buf4[0], x, sizeof (buf4));
memcpy (&y3, y, sizeof (y3));
memcpy ((char *) &y3, y, sizeof (y3));
memcpy (w, x, sizeof (X));
// These are probably broken, but obfuscated, no warning.
memcpy ((void *) y, x, sizeof (y));
memcpy ((char *) y1, x, sizeof (y2));
memcpy (y, x, sizeof (y) + 0);
memcpy (y1, x, 0 + sizeof (y2));
memcpy ((void *) &c, x, sizeof (&c));
memcpy ((signed char *) &c, x, sizeof (&c));
memcpy (&c, x, sizeof (&c) + 0);
memcpy (&c, x, 0 + sizeof (&c));
// These are correct, no warning.
memcpy (x, y, sizeof (*y));
memcpy (x, y1, sizeof (*y2));
memcpy (x, buf1, sizeof buf1);
memcpy (x, buf3, sizeof (buf3));
memcpy (x, &buf3[0], sizeof (buf3));
memcpy (x, &buf4[0], sizeof (buf4));
memcpy (y, &y3, sizeof (y3));
memcpy (y, (char *) &y3, sizeof (y3));
memcpy (x, w, sizeof (X));
// These are probably broken, but obfuscated, no warning.
memcpy (x, (void *) y, sizeof (y));
memcpy (x, (char *) y1, sizeof (y2));
memcpy (x, y, sizeof (y) + 0);
memcpy (x, y1, 0 + sizeof (y2));
memcpy (x, (void *) &c, sizeof (&c));
memcpy (x, (signed char *) &c, sizeof (&c));
memcpy (x, &c, sizeof (&c) + 0);
memcpy (x, &c, 0 + sizeof (&c));
// These are correct, no warning.
memmove (y, x, sizeof (*y));
memmove (y1, x, sizeof (*y2));
memmove (buf1, x, sizeof buf1);
memmove (buf3, x, sizeof (buf3));
memmove (&buf3[0], x, sizeof (buf3));
memmove (&buf4[0], x, sizeof (buf4));
memmove (&y3, y, sizeof (y3));
memmove ((char *) &y3, y, sizeof (y3));
memmove (w, x, sizeof (X));
// These are probably broken, but obfuscated, no warning.
memmove ((void *) y, x, sizeof (y));
memmove ((char *) y1, x, sizeof (y2));
memmove (y, x, sizeof (y) + 0);
memmove (y1, x, 0 + sizeof (y2));
memmove ((void *) &c, x, sizeof (&c));
memmove ((signed char *) &c, x, sizeof (&c));
memmove (&c, x, sizeof (&c) + 0);
memmove (&c, x, 0 + sizeof (&c));
// These are correct, no warning.
memmove (x, y, sizeof (*y));
memmove (x, y1, sizeof (*y2));
memmove (x, buf1, sizeof buf1);
memmove (x, buf3, sizeof (buf3));
memmove (x, &buf3[0], sizeof (buf3));
memmove (x, &buf4[0], sizeof (buf4));
memmove (y, &y3, sizeof (y3));
memmove (y, (char *) &y3, sizeof (y3));
memmove (x, w, sizeof (X));
// These are probably broken, but obfuscated, no warning.
memmove (x, (void *) y, sizeof (y));
memmove (x, (char *) y1, sizeof (y2));
memmove (x, y, sizeof (y) + 0);
memmove (x, y1, 0 + sizeof (y2));
memmove (x, (void *) &c, sizeof (&c));
memmove (x, (signed char *) &c, sizeof (&c));
memmove (x, &c, sizeof (&c) + 0);
memmove (x, &c, 0 + sizeof (&c));
// These are correct, no warning.
z += memcmp (y, x, sizeof (*y));
z += memcmp (y1, x, sizeof (*y2));
z += memcmp (buf1, x, sizeof buf1);
z += memcmp (buf3, x, sizeof (buf3));
z += memcmp (&buf3[0], x, sizeof (buf3));
z += memcmp (&buf4[0], x, sizeof (buf4));
z += memcmp (&y3, y, sizeof (y3));
z += memcmp ((char *) &y3, y, sizeof (y3));
z += memcmp (w, x, sizeof (X));
// These are probably broken, but obfuscated, no warning.
z += memcmp ((void *) y, x, sizeof (y));
z += memcmp ((char *) y1, x, sizeof (y2));
z += memcmp (y, x, sizeof (y) + 0);
z += memcmp (y1, x, 0 + sizeof (y2));
z += memcmp ((void *) &c, x, sizeof (&c));
z += memcmp ((signed char *) &c, x, sizeof (&c));
z += memcmp (&c, x, sizeof (&c) + 0);
z += memcmp (&c, x, 0 + sizeof (&c));
// These are correct, no warning.
z += memcmp (x, y, sizeof (*y));
z += memcmp (x, y1, sizeof (*y2));
z += memcmp (x, buf1, sizeof buf1);
z += memcmp (x, buf3, sizeof (buf3));
z += memcmp (x, &buf3[0], sizeof (buf3));
z += memcmp (x, &buf4[0], sizeof (buf4));
z += memcmp (y, &y3, sizeof (y3));
z += memcmp (y, (char *) &y3, sizeof (y3));
z += memcmp (x, w, sizeof (X));
// These are probably broken, but obfuscated, no warning.
z += memcmp (x, (void *) y, sizeof (y));
z += memcmp (x, (char *) y1, sizeof (y2));
z += memcmp (x, y, sizeof (y) + 0);
z += memcmp (x, y1, 0 + sizeof (y2));
z += memcmp (x, (void *) &c, sizeof (&c));
z += memcmp (x, (signed char *) &c, sizeof (&c));
z += memcmp (x, &c, sizeof (&c) + 0);
z += memcmp (x, &c, 0 + sizeof (&c));
return z;
}
template <int N>
int
f4 (char *x, char **y, int z, char w[64])
{
const char *s1 = "foobarbaz";
const char *s2 = "abcde12345678";
strncpy (x, s1, sizeof (s1)); // { dg-warning "call is the same expression as the source; did you mean to provide an explicit length" }
strncat (x, s2, sizeof (s2)); // { dg-warning "call is the same expression as the source; did you mean to provide an explicit length" }
stpncpy (x, s1, sizeof (s1)); // { dg-warning "call is the same expression as the source; did you mean to provide an explicit length" }
y[0] = strndup (s1, sizeof (s1)); // { dg-warning "call is the same expression as the source; did you mean to provide an explicit length" }
z += strncmp (s1, s2, sizeof (s1)); // { dg-warning "call is the same expression as the first source; did you mean to provide an explicit length" }
z += strncmp (s1, s2, sizeof (s2)); // { dg-warning "call is the same expression as the second source; did you mean to provide an explicit length" }
z += strncasecmp (s1, s2, sizeof (s1)); // { dg-warning "call is the same expression as the first source; did you mean to provide an explicit length" }
z += strncasecmp (s1, s2, sizeof (s2)); // { dg-warning "call is the same expression as the second source; did you mean to provide an explicit length" }
strncpy (w, s1, sizeof (w)); // { dg-warning "call is the same expression as the destination; did you mean to provide an explicit length" }
strncat (w, s2, sizeof (w)); // { dg-warning "call is the same expression as the destination; did you mean to provide an explicit length" }
stpncpy (w, s1, sizeof (w)); // { dg-warning "call is the same expression as the destination; did you mean to provide an explicit length" }
const char s3[] = "foobarbaz";
const char s4[] = "abcde12345678";
strncpy (x, s3, sizeof (s3)); // { dg-warning "call is the same expression as the source; did you mean to use the size of the destination" }
strncat (x, s4, sizeof (s4)); // { dg-warning "call is the same expression as the source; did you mean to use the size of the destination" }
stpncpy (x, s3, sizeof (s3)); // { dg-warning "call is the same expression as the source; did you mean to use the size of the destination" }
// These are safe, no warning.
y[1] = strndup (s3, sizeof (s3));
z += strncmp (s3, s4, sizeof (s3));
z += strncmp (s3, s4, sizeof (s4));
z += strncasecmp (s3, s4, sizeof (s3));
z += strncasecmp (s3, s4, sizeof (s4));
return z;
}
int
f (void *x, char *y, int z, X w, char **u, char v[64])
{
z += f1<0> (x, z);
z += f2<0> (x, z);
z += f3<0> (x, y, z, w);
z += f4<0> (y, u, z, v);
return z;
}
// { dg-prune-output "\[\n\r\]*will always overflow\[\n\r\]*" }