forked from OSchip/llvm-project
59 lines
967 B
C
59 lines
967 B
C
// RUN: %clang -target x86_64-unknown-linux --analyze %s
|
|
|
|
#include "Inputs/system-header-simulator.h"
|
|
|
|
#define __GFP_ZERO 0x8000
|
|
#define NULL ((void *)0)
|
|
|
|
void *kmalloc(size_t, int);
|
|
|
|
struct test {
|
|
};
|
|
|
|
void foo(struct test *);
|
|
|
|
void test_zeroed() {
|
|
struct test **list, *t;
|
|
int i;
|
|
|
|
list = kmalloc(sizeof(*list) * 10, __GFP_ZERO);
|
|
if (list == NULL)
|
|
return;
|
|
|
|
for (i = 0; i < 10; i++) {
|
|
t = list[i];
|
|
foo(t);
|
|
}
|
|
free(list); // no-warning
|
|
}
|
|
|
|
void test_nonzero() {
|
|
struct test **list, *t;
|
|
int i;
|
|
|
|
list = kmalloc(sizeof(*list) * 10, 0);
|
|
if (list == NULL)
|
|
return;
|
|
|
|
for (i = 0; i < 10; i++) {
|
|
t = list[i]; // expected-warning{{undefined}}
|
|
foo(t);
|
|
}
|
|
free(list);
|
|
}
|
|
|
|
void test_indeterminate(int flags) {
|
|
struct test **list, *t;
|
|
int i;
|
|
|
|
list = kmalloc(sizeof(*list) * 10, flags);
|
|
if (list == NULL)
|
|
return;
|
|
|
|
for (i = 0; i < 10; i++) {
|
|
t = list[i]; // expected-warning{{undefined}}
|
|
foo(t);
|
|
}
|
|
free(list);
|
|
}
|