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// RUN: %clang_analyze_cc1 -triple hexagon-unknown-linux -analyzer-checker=core,valist.Unterminated,valist.CopyToSelf -analyzer-output=text -analyzer-store=region -verify %s
// RUN: %clang_analyze_cc1 -triple x86_64-pc-linux-gnu -analyzer-checker=core,valist.Unterminated,valist.CopyToSelf -analyzer-output=text -analyzer-store=region -verify %s
#include "Inputs/system-header-simulator-for-valist.h"
void f1(int fst, ...) {
va_list va;
va_start(va, fst); // expected-note{{Initialized va_list}}
return; // expected-warning{{Initialized va_list 'va' is leaked}}
// expected-note@-1{{Initialized va_list 'va' is leaked}}
}
void f2(int fst, ...) {
va_list va;
va_start(va, fst); // expected-note{{Initialized va_list}}
va_end(va); // expected-note{{Ended va_list}}
va_start(va, fst); // expected-note{{Initialized va_list}}
} // expected-warning{{Initialized va_list 'va' is leaked}}
// expected-note@-1{{Initialized va_list 'va' is leaked}}
void f3(int fst, ...) {
va_list va, va2;
va_start(va, fst);
va_copy(va2, va); // expected-note{{Initialized va_list}}
va_end(va); // expected-warning{{Initialized va_list 'va2' is leaked}}
// expected-note@-1{{Initialized va_list 'va2' is leaked}}
}
void f4(va_list *fst, ...) {
va_start(*fst, fst); // expected-note{{Initialized va_list}}
return; // expected-warning{{Initialized va_list is leaked}}
// expected-note@-1{{Initialized va_list is leaked}}
}
void f5(va_list fst, ...) {
va_start(fst, fst); // expected-note{{Initialized va_list}}
} // expected-warning{{Initialized va_list}}
// expected-note@-1{{Initialized va_list}}
void f6(va_list *fst, ...) {
va_start(*fst, fst); // expected-note{{Initialized va_list}}
(void)va_arg(*fst, int);
//FIXME: this should NOT cause a warning
va_end(*fst); // expected-warning{{Initialized va_list is leaked}}
// expected-note@-1{{Initialized va_list is leaked}}
}
void f7(int *fst, ...) {
va_list x;
va_list *y = &x;
va_start(*y,fst); // expected-note{{Initialized va_list}}
} // expected-warning{{Initialized va_list 'x' is leaked}}
// expected-note@-1{{Initialized va_list 'x' is leaked}}
void f8(int *fst, ...) {
va_list x;
va_list *y = &x;
va_start(*y,fst);
va_end(x);
} // no-warning
void reinit(int *fst, ...) {
va_list va;
va_start(va, fst); // expected-note{{Initialized va_list}}
// expected-note@-1{{Initialized va_list}}
va_start(va, fst); // expected-warning{{Initialized va_list 'va' is initialized again}}
// expected-note@-1{{Initialized va_list 'va' is initialized again}}
} // expected-warning{{Initialized va_list 'va' is leaked}}
// expected-note@-1{{Initialized va_list 'va' is leaked}}
void reinitOk(int *fst, ...) {
va_list va;
va_start(va, fst);
va_end(va);
va_start(va, fst);
va_end(va);
} // no-warning
void copyself(int fst, ...) {
va_list va;
va_start(va, fst); // expected-note{{Initialized va_list}}
va_copy(va, va); // expected-warning{{va_list 'va' is copied onto itself}}
// expected-note@-1{{va_list 'va' is copied onto itself}}
va_end(va);
}
void copyselfUninit(int fst, ...) {
va_list va;
va_copy(va, va); // expected-warning{{va_list 'va' is copied onto itself}}
// expected-note@-1{{va_list 'va' is copied onto itself}}
}
void copyOverwrite(int fst, ...) {
va_list va, va2;
va_start(va, fst); // expected-note{{Initialized va_list}}
va_copy(va, va2); // expected-warning{{Initialized va_list 'va' is overwritten by an uninitialized one}}
// expected-note@-1{{Initialized va_list 'va' is overwritten by an uninitialized one}}
}
//This only generates a warning for the valist.Uninitialized checker
void copyUnint(int fst, ...) {
va_list va, va2;
va_copy(va, va2);
} // no-warning
void recopy(int fst, ...) {
va_list va, va2;
va_start(va, fst);
va_copy(va2, va); // expected-note{{Initialized va_list}}
va_copy(va2, va); // expected-warning{{Initialized va_list 'va2' is initialized again}}
// expected-note@-1{{Initialized va_list 'va2' is initialized again}}
va_end(va);
va_end(va2);
}
void doublemsg(int fst, ...) {
va_list va, va2;
va_start(va, fst), va_start(va2, fst); // expected-warning{{Initialized va_list 'va' is leaked}}
// expected-warning@-1{{Initialized va_list 'va2' is leaked}}
// expected-note@-2{{Initialized va_list}}
// expected-note@-3{{Initialized va_list}}
// expected-note@-4{{Initialized va_list}}
// expected-note@-5{{Initialized va_list 'va' is leaked}}
}
void in_array(int fst, ...) {
va_list va_array[8];
va_start(va_array[3], fst); // expected-note{{Initialized va_list}}
} // expected-warning{{Initialized va_list 'va_array[3]' is leaked}}
// expected-note@-1{{Initialized va_list 'va_array[3]' is leaked}}
struct containing_a_valist {
va_list vafield;
int foobar;
};
void in_struct(int fst, ...) {
struct containing_a_valist s;
va_start(s.vafield, fst); // expected-note{{Initialized va_list}}
} // expected-warning{{Initialized va_list 's.vafield' is leaked}}
// expected-note@-1{{Initialized va_list 's.vafield' is leaked}}
void casting(int fst, ...) {
char mem[sizeof(va_list)];
va_start(*(va_list *) mem, fst); // expected-note{{Initialized va_list}}
} // expected-warning{{Initialized va_list 'mem[0]' is leaked}}
// expected-note@-1{{Initialized va_list 'mem[0]' is leaked}}
void castingOk(int fst, ...) {
char mem[sizeof(va_list)];
va_start(*(va_list *) mem, fst);
va_end(*(va_list *) mem);
} // no-warning
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