https://gcc.gnu.org/bugzilla/show_bug.cgi?id=107754
Andrew Pinski <pinskia at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Last reconfirmed| |2022-11-18
Ever confirmed|0 |1
Summary|Confusing -Warray-bounds |Confusing -Warray-bounds
|warning with strcpy |warning with strcpy with a
| |null pointer
Status|UNCONFIRMED |NEW
--- Comment #1 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
Confirmed. Note the warning message is correct; just confusing and does not
mention a null pointer here.
Reduced further:
struct Foo
{
unsigned int a;
char bar[1024];
};
void setFoo(const char * value)
{
struct Foo * ptr = 0;
__builtin_strcpy(ptr->bar, value);
}
---- CUT ---
Since the offset for the character array is non-zero, we see a non-zero
constant and (based on other settings) assume it is the null pointer page and
we get a size of 0 (which is ok) but don't mention a null pointer.
There might be other dups of this but I am not going to search for it right
now.
