42 lines
1.2 KiB
C++
42 lines
1.2 KiB
C++
/// When the main program doesn't use .eh_frame, the slow unwinder does not work.
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/// Test that we can fall back to the fast unwinder.
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// RUN: %clangxx -O0 -g1 -fno-exceptions -fno-unwind-tables -fno-asynchronous-unwind-tables -fno-omit-frame-pointer -mno-omit-leaf-frame-pointer %s -o %t
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// RUN: llvm-readelf -S %t | FileCheck %s --check-prefix=SEC
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// RUN: %run %t 2>&1 | FileCheck %s
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// On android %t is a wrapper python script so llvm-readelf will fail.
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// UNSUPPORTED: android
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/// Fast unwinder does not work with Thumb code
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// UNSUPPORTED: thumb
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/// No .eh_frame && -g => .debug_frame
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// SEC: .debug_frame
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#include <sanitizer/common_interface_defs.h>
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#include <vector>
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template <int N>
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struct A {
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template <class T>
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void RecursiveTemplateFunction(const T &t);
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};
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template <int N>
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template <class T>
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__attribute__((noinline)) void A<N>::RecursiveTemplateFunction(const T &) {
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std::vector<T> t;
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return A<N - 1>().RecursiveTemplateFunction(t);
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}
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template <>
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template <class T>
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__attribute__((noinline)) void A<0>::RecursiveTemplateFunction(const T &) {
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__sanitizer_print_stack_trace();
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}
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int main() {
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// CHECK: {{vector<.*vector<.*vector<.*vector<.*vector<}}
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A<7>().RecursiveTemplateFunction(0);
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}
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