forked from OSchip/llvm-project
73 lines
1.6 KiB
C
73 lines
1.6 KiB
C
// RUN: %clang_analyze_cc1 -analyzer-checker=core,alpha.core,unix,alpha.unix -std=gnu99 -analyzer-store=region -verify %s
|
|
|
|
#include "Inputs/system-header-simulator.h"
|
|
|
|
typedef __typeof(sizeof(int)) size_t;
|
|
void *memset(void *__s, int __c, size_t __n);
|
|
void *malloc(size_t __size);
|
|
void free(void *__ptr);
|
|
|
|
// The store for 'a[1]' should not be removed mistakenly. SymbolicRegions may
|
|
// also be live roots.
|
|
void f14(int *a) {
|
|
int i;
|
|
a[1] = 1;
|
|
i = a[1];
|
|
if (i != 1) {
|
|
int *p = 0;
|
|
i = *p; // no-warning
|
|
}
|
|
}
|
|
|
|
void foo() {
|
|
int *x = malloc(sizeof(int));
|
|
memset(x, 0, sizeof(int));
|
|
int n = 1 / *x; // FIXME: no-warning
|
|
free(x);
|
|
}
|
|
|
|
void bar() {
|
|
int *x = malloc(sizeof(int));
|
|
memset(x, 0, 1);
|
|
int n = 1 / *x; // no-warning
|
|
free(x);
|
|
}
|
|
|
|
void testConcreteNull() {
|
|
int *x = 0;
|
|
memset(x, 0, 1); // expected-warning {{Null pointer argument in call to memory set function}}
|
|
}
|
|
|
|
void testStackArray() {
|
|
char buf[13];
|
|
memset(buf, 0, 1); // no-warning
|
|
}
|
|
|
|
void testHeapSymbol() {
|
|
char *buf = (char *)malloc(13);
|
|
memset(buf, 0, 1); // no-warning
|
|
free(buf);
|
|
}
|
|
|
|
void testStackArrayOutOfBound() {
|
|
char buf[1];
|
|
memset(buf, 0, 1024); // expected-warning {{Memory set function accesses out-of-bound array element}}
|
|
}
|
|
|
|
void testHeapSymbolOutOfBound() {
|
|
char *buf = (char *)malloc(1);
|
|
memset(buf, 0, 1024); // expected-warning {{Memory set function accesses out-of-bound array element}}
|
|
free(buf);
|
|
}
|
|
|
|
void testStackArraySameSize() {
|
|
char buf[1];
|
|
memset(buf, 0, sizeof(buf)); // no-warning
|
|
}
|
|
|
|
void testHeapSymbolSameSize() {
|
|
char *buf = (char *)malloc(1);
|
|
memset(buf, 0, 1); // no-warning
|
|
free(buf);
|
|
}
|