55 lines
1.9 KiB
C
55 lines
1.9 KiB
C
// RUN: %clang_cc1 -fsyntax-only -verify %s
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// RUN: %clang_cc1 -fsyntax-only -triple x86_64-apple-darwin9 -verify %s
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int a[10];
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int f0() {
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return __builtin_object_size(&a); // expected-error {{too few arguments to function}}
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}
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int f1() {
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return (__builtin_object_size(&a, 0) +
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__builtin_object_size(&a, 1) +
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__builtin_object_size(&a, 2) +
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__builtin_object_size(&a, 3));
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}
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int f2() {
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return __builtin_object_size(&a, -1); // expected-error {{argument should be a value from 0 to 3}}
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}
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int f3() {
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return __builtin_object_size(&a, 4); // expected-error {{argument should be a value from 0 to 3}}
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}
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// rdar://6252231 - cannot call vsnprintf with va_list on x86_64
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void f4(const char *fmt, ...) {
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__builtin_va_list args;
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__builtin___vsnprintf_chk (0, 42, 0, 11, fmt, args); // expected-warning {{'__builtin___vsnprintf_chk' will always overflow destination buffer}}
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}
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// rdar://18334276
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typedef __typeof__(sizeof(int)) size_t;
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void * memcset(void *restrict dst, int src, size_t n);
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void * memcpy(void *restrict dst, const void *restrict src, size_t n);
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#define memset(dest, src, len) __builtin___memset_chk(dest, src, len, __builtin_object_size(dest, 0))
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#define memcpy(dest, src, len) __builtin___memcpy_chk(dest, src, len, __builtin_object_size(dest, 0))
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#define memcpy1(dest, src, len) __builtin___memcpy_chk(dest, src, len, __builtin_object_size(dest, 4))
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#define NULL ((void *)0)
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void f5(void)
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{
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char buf[10];
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memset((void *)0x100000000ULL, 0, 0x1000);
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memcpy((char *)NULL + 0x10000, buf, 0x10);
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memcpy1((char *)NULL + 0x10000, buf, 0x10); // expected-error {{argument should be a value from 0 to 3}}
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}
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// rdar://18431336
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void f6(void)
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{
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char b[5];
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char buf[10];
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__builtin___memccpy_chk (buf, b, '\0', sizeof(b), __builtin_object_size (buf, 0));
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__builtin___memccpy_chk (b, buf, '\0', sizeof(buf), __builtin_object_size (b, 0)); // expected-warning {{'__builtin___memccpy_chk' will always overflow destination buffer}}
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}
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