// RUN: %clang_analyze_cc1 -analyzer-output=text -verify %s \
// RUN: -analyzer-checker=core \
// RUN: -analyzer-checker=unix.Malloc \
// RUN: -analyzer-checker=debug.ExprInspection \
// RUN: -analyzer-config core.CallAndMessage:ArgPointeeInitializedness=true
void clang_analyzer_warnIfReached(void);
// Passing uninitialized const data to function
#include "Inputs/system-header-simulator.h"
typedef __typeof(sizeof(int)) size_t;
void *malloc(size_t);
void *valloc(size_t);
void free(void *);
void doStuff3(const int y){}
void doStuff2(int g){}
void doStuff_pointerToConstInt(const int *u){};
void doStuff_arrayOfConstInt(const int a[]){};
void doStuff_constPointerToConstInt (int const * const u){};
void doStuff_constPointerToConstPointerToConstInt(int const * const * const u){};
void doStuff_pointerToConstPointerToConstInt(int const * const * u){};
void doStuff_pointerToPointerToConstInt (int const **u){};
void doStuff_constStaticSizedArray(const int a[static 10]) {}
void doStuff_variadic(const int *u, ...){};
void f_1(void) {
int t; // expected-note {{'t' declared without an initial value}}
int* tp = &t; // expected-note {{'tp' initialized here}}
doStuff_pointerToConstInt(tp); // expected-warning {{1st function call argument is a pointer to uninitialized value}}
// expected-note@-1 {{1st function call argument is a pointer to uninitialized value}}
}
void f_1_1(void) {
int t; // expected-note {{'t' declared without an initial value}}
int *tp1 = &t; // expected-note {{'tp1' initialized here}}
int *tp2 = tp1; // expected-note {{'tp2' initialized to the value of 'tp1'}}
doStuff_pointerToConstInt(tp2); // expected-warning {{1st function call argument is a pointer to uninitialized value}}
// expected-note@-1 {{1st function call argument is a pointer to uninitialized value}}
}
int *f_2_sub(int *p) {
return p; // expected-note {{Returning pointer (loaded from 'p')}}
}
void f_2(void) {
int t; // expected-note {{'t' declared without an initial value}}
int *p = f_2_sub(&t); // expected-note {{Passing value via 1st parameter 'p'}}
// expected-note@-1{{Calling 'f_2_sub'}}
// expected-note@-2{{Returning from 'f_2_sub'}}
// expected-note@-3{{'p' initialized here}}
int *tp = p; // expected-note {{'tp' initialized to the value of 'p'}}
doStuff_pointerToConstInt(tp); // expected-warning {{1st function call argument is a pointer to uninitialized value}}
// expected-note@-1 {{1st function call argument is a pointer to uninitialized value}}
}
int z;
void f_3(void) {
doStuff_pointerToConstInt(&z); // no warning
}
void f_4(void) {
int x=5;
doStuff_pointerToConstInt(&x); // no warning
}
void f_5(void) {
int ta[5]; // expected-note {{'ta' initialized here}}
int *tp = ta; // expected-note {{'tp' initialized here}}
doStuff_pointerToConstInt(tp); // expected-warning {{1st function call argument is a pointer to uninitialized value}}
// expected-note@-1 {{1st function call argument is a pointer to uninitialized value}}
}
void f_5_1(void) {
int ta[5]; // expected-note {{'ta' initialized here}}
doStuff_pointerToConstInt(ta); // expected-warning {{1st function call argument is a pointer to uninitialized value}}
// expected-note@-1 {{1st function call argument is a pointer to uninitialized value}}
}
void f_6(void) {
int ta[5] = {1,2,3,4,5};
int* tp = ta;
doStuff_pointerToConstInt(tp); // no-warning
}
void f_6_1(void) {
int ta[5] = {1,2,3,4,5};
doStuff_pointerToConstInt(ta); // no-warning
}
void f_7(void) {
int z; // expected-note {{'z' declared without an initial value}}
int y=z; // expected-warning {{Assigned value is garbage or undefined}}
// expected-note@-1 {{Assigned value is garbage or undefined}}
doStuff3(y);
}
void f_8(void) {
int g; // expected-note {{'g' declared without an initial value}}
doStuff2(g); // expected-warning {{1st function call argument is an uninitialized value}}
// expected-note@-1 {{1st function call argument is an uninitialized value}}
}
void f_9(void) {
int a[6]; // expected-note {{'a' initialized here}}
int const *ptau = a; // expected-note {{'ptau' initialized here}}
doStuff_arrayOfConstInt(ptau); // expected-warning {{1st function call argument is a pointer to uninitialized value}}
// expected-note@-1 {{1st function call argument is a pointer to uninitialized value}}
}
void f_10(void) {
int a[6]; // expected-note {{'a' initialized here}}
doStuff_arrayOfConstInt(a); // expected-warning {{1st function call argument is a pointer to uninitialized value}}
// expected-note@-1 {{1st function call argument is a pointer to uninitialized value}}
}
void f_11(void) {
int t[10]; //expected-note {{'t' initialized here}}
doStuff_constStaticSizedArray(t); // expected-warning {{1st function call argument is a pointer to uninitialized value}}
// expected-note@-1 {{1st function call argument is a pointer to uninitialized value}}
}
void f_12(void) {
int t[10] = {0,1,2,3,4,5,6,7,8,9};
doStuff_constStaticSizedArray(t); // no-warning
}
// https://bugs.llvm.org/show_bug.cgi?id=35419
void f11_0(void) {
int x; // expected-note {{'x' declared without an initial value}}
x++; // expected-warning {{The expression is an uninitialized value. The computed value will also be garbage}}
// expected-note@-1 {{The expression is an uninitialized value. The computed value will also be garbage}}
clang_analyzer_warnIfReached(); // no-warning
}
void f11_1(void) {
int x; // expected-note {{'x' declared without an initial value}}
++x; // expected-warning {{The expression is an uninitialized value. The computed value will also be garbage}}
// expected-note@-1 {{The expression is an uninitialized value. The computed value will also be garbage}}
clang_analyzer_warnIfReached(); // no-warning
}
void f11_2(void) {
int x; // expected-note {{'x' declared without an initial value}}
x--; // expected-warning {{The expression is an uninitialized value. The computed value will also be garbage}}
// expected-note@-1 {{The expression is an uninitialized value. The computed value will also be garbage}}
clang_analyzer_warnIfReached(); // no-warning
}
void f11_3(void) {
int x; // expected-note {{'x' declared without an initial value}}
--x; // expected-warning {{The expression is an uninitialized value. The computed value will also be garbage}}
// expected-note@-1 {{The expression is an uninitialized value. The computed value will also be garbage}}
clang_analyzer_warnIfReached(); // no-warning
}
int f_malloc_1(void) {
int *ptr;
ptr = (int *)malloc(sizeof(int)); // expected-note {{Value assigned to 'ptr'}}
doStuff_pointerToConstInt(ptr); // expected-warning {{1st function call argument is a pointer to uninitialized value}}
// expected-note@-1 {{1st function call argument is a pointer to uninitialized value}}
free(ptr);
return 0;
}
int f_malloc_2(void) {
int *ptr;
ptr = (int *)malloc(sizeof(int));
*ptr = 25;
doStuff_pointerToConstInt(ptr); // no warning
free(ptr);
return 0;
}
// uninit pointer, uninit val
void f_variadic_unp_unv(void) {
int t; // expected-note {{'t' declared without an initial value}}
int v;
int* tp = &t; // expected-note {{'tp' initialized here}}
doStuff_variadic(tp,v); // expected-warning {{1st function call argument is a pointer to uninitialized value}}
// expected-note@-1 {{1st function call argument is a pointer to uninitialized value}}
}
// uninit pointer, init val
void f_variadic_unp_inv(void) {
int t; // expected-note {{'t' declared without an initial value}}
int v = 3;
int* tp = &t; // expected-note {{'tp' initialized here}}
doStuff_variadic(tp,v); // expected-warning {{1st function call argument is a pointer to uninitialized value}}
// expected-note@-1 {{1st function call argument is a pointer to uninitialized value}}
}
// init pointer, uninit val
void f_variadic_inp_unv(void) {
int t=5;
int v; // expected-note {{'v' declared without an initial value}}
int* tp = &t;
doStuff_variadic(tp,v);// expected-warning {{2nd function call argument is an uninitialized value}}
// expected-note@-1 {{2nd function call argument is an uninitialized value}}
}
// init pointer, init val
void f_variadic_inp_inv(void) {
int t=5;
int v = 3;
int* tp = &t;
doStuff_variadic(tp,v); // no-warning
}
// init pointer, init pointer
void f_variadic_inp_inp(void) {
int t=5;
int u=3;
int *vp = &u ;
int *tp = &t;
doStuff_variadic(tp,vp); // no-warning
}
//uninit pointer, init pointer
void f_variadic_unp_inp(void) {
int t; // expected-note {{'t' declared without an initial value}}
int u=3;
int *vp = &u ;
int *tp = &t; // expected-note {{'tp' initialized here}}
doStuff_variadic(tp,vp); // expected-warning {{1st function call argument is a pointer to uninitialized value}}
// expected-note@-1 {{1st function call argument is a pointer to uninitialized value}}
}
//init pointer, uninit pointer
void f_variadic_inp_unp(void) {
int t=5;
int u;
int *vp = &u ;
int *tp = &t;
doStuff_variadic(tp,vp); // no-warning
}
//uninit pointer, uninit pointer
void f_variadic_unp_unp(void) {
int t; // expected-note {{'t' declared without an initial value}}
int u;
int *vp = &u ;
int *tp = &t; // expected-note {{'tp' initialized here}}
doStuff_variadic(tp,vp); // expected-warning {{1st function call argument is a pointer to uninitialized value}}
// expected-note@-1 {{1st function call argument is a pointer to uninitialized value}}
}
Codebase Browser
llvm