| 1 | // Verify that objects passed by value get red zones and that the copy |
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| 2 | // constructor is called. |
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| 3 | // RUN: %clangxx_asan -O0 %s -o %t |
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| 4 | // RUN: not %run %t 2>&1 | FileCheck %s --implicit-check-not \ |
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| 5 | // RUN: Assertion{{.*}}failed |
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| 6 | |
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| 7 | // ASan instrumentation can't insert red-zones around inalloca parameters. |
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| 8 | // XFAIL: target={{.*windows-msvc.*}} && asan-32-bits |
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| 9 | |
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| 10 | #include <cassert> |
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| 11 | |
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| 12 | class A { |
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| 13 | public: |
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| 14 | A() : me(this) {} |
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| 15 | A(const A &other) : me(this) { |
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| 16 | for (int i = 0; i < 8; ++i) a[i] = other.a[i]; |
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| 17 | } |
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| 18 | |
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| 19 | int a[8]; |
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| 20 | A *me; |
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| 21 | }; |
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| 22 | |
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| 23 | int bar(A *a) { |
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| 24 | int *volatile ptr = &a->a[0]; |
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| 25 | return *(ptr - 1); |
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| 26 | } |
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| 27 | |
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| 28 | void foo(A a) { |
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| 29 | assert(a.me == &a); |
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| 30 | bar(a: &a); |
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| 31 | } |
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| 32 | |
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| 33 | int main() { |
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| 34 | A a; |
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| 35 | foo(a); |
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| 36 | } |
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| 37 | |
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| 38 | // CHECK: ERROR: AddressSanitizer: stack-buffer-overflow |
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| 39 | // CHECK: READ of size 4 at |
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| 40 | // CHECK: is located in stack of thread |
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| 41 | |
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