1*67e74705SXin Li// RUN: %clang_cc1 -analyze -analyzer-checker=core,unix.Malloc -analyzer-store=region -verify -Wno-objc-root-class -fblocks %s 2*67e74705SXin Li#include "Inputs/system-header-simulator-objc.h" 3*67e74705SXin Li 4*67e74705SXin Li@class NSString; 5*67e74705SXin Litypedef __typeof(sizeof(int)) size_t; 6*67e74705SXin Livoid *malloc(size_t); 7*67e74705SXin Livoid free(void *); 8*67e74705SXin Li 9*67e74705SXin Li// RDar10579586 - Test use of malloc() with Objective-C string literal as a 10*67e74705SXin Li// test condition. Not really a malloc() issue, but this also exercises 11*67e74705SXin Li// the check that malloc() returns uninitialized memory. 12*67e74705SXin Li@interface RDar10579586 13*67e74705SXin Listruct rdar0579586_str { 14*67e74705SXin Li char str_c; 15*67e74705SXin Li}; 16*67e74705SXin Li@end 17*67e74705SXin Li 18*67e74705SXin Livoid rdar10579586(char x); 19*67e74705SXin Li 20*67e74705SXin Li@implementation RDar10579586 21*67e74705SXin Li+ (NSString *)foobar 22*67e74705SXin Li{ 23*67e74705SXin Li struct rdar0579586_str *buffer = ((void*)0); 24*67e74705SXin Li NSString *error = ((void*)0); 25*67e74705SXin Li 26*67e74705SXin Li if ((buffer = malloc(sizeof(struct rdar0579586_str))) == ((void*)0)) 27*67e74705SXin Li error = @"buffer allocation failure"; 28*67e74705SXin Li 29*67e74705SXin Li if (error != ((void*)0)) 30*67e74705SXin Li return error; 31*67e74705SXin Li 32*67e74705SXin Li rdar10579586(buffer->str_c); // expected-warning {{Function call argument is an uninitialized value}} 33*67e74705SXin Li free(buffer); 34*67e74705SXin Li return ((void*)0); 35*67e74705SXin Li} 36*67e74705SXin Li@end 37*67e74705SXin Li 38*67e74705SXin Li@interface MyArray : NSObject { 39*67e74705SXin Li id * objects; 40*67e74705SXin Li} 41*67e74705SXin Li@end 42*67e74705SXin Li 43*67e74705SXin Livoid _ArrayCreate() { 44*67e74705SXin Li MyArray *array = (MyArray *)malloc(12); 45*67e74705SXin Li array = [array init]; 46*67e74705SXin Li free(array); // no-warning 47*67e74705SXin Li} 48*67e74705SXin Li 49*67e74705SXin Livoid testNSDataTruePositiveLeak() { 50*67e74705SXin Li char *b = (char *)malloc(12); 51*67e74705SXin Li NSData *d = [[NSData alloc] initWithBytes: b length: 12]; // expected-warning {{Potential leak of memory pointed to by 'b'}} 52*67e74705SXin Li} 53*67e74705SXin Li 54*67e74705SXin Liid wrapInNSValue() { 55*67e74705SXin Li void *buffer = malloc(4); 56*67e74705SXin Li return [NSValue valueWithPointer:buffer]; // no-warning 57*67e74705SXin Li}