| 1 | // A collection of various initializers which shouldn't trip up initialization |
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| 2 | // order checking. If successful, this will just return 0. |
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| 3 | |
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| 4 | // RUN: %clangxx_asan -O0 %s %p/Helpers/initialization-nobug-extra.cpp -o %t && %env_asan_opts=check_initialization_order=true:report_globals=3 %run %t 2>&1 | FileCheck %s --implicit-check-not "DynInitPoison" |
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| 5 | // RUN: %clangxx_asan -O1 %s %p/Helpers/initialization-nobug-extra.cpp -o %t && %env_asan_opts=check_initialization_order=true:report_globals=3 %run %t 2>&1 | FileCheck %s --implicit-check-not "DynInitPoison" |
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| 6 | // RUN: %clangxx_asan -O2 %s %p/Helpers/initialization-nobug-extra.cpp -o %t && %env_asan_opts=check_initialization_order=true:report_globals=3 %run %t 2>&1 | FileCheck %s --implicit-check-not "DynInitPoison" |
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| 7 | // RUN: %clangxx_asan -O3 %s %p/Helpers/initialization-nobug-extra.cpp -o %t && %env_asan_opts=check_initialization_order=true:report_globals=3 %run %t 2>&1 | FileCheck %s --implicit-check-not "DynInitPoison" |
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| 8 | |
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| 9 | // Simple access: |
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| 10 | // Make sure that accessing a global in the same TU is safe |
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| 11 | |
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| 12 | bool condition = true; |
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| 13 | __attribute__((noinline, weak)) int initializeSameTU() { |
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| 14 | return condition ? 0x2a : 052; |
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| 15 | } |
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| 16 | int sameTU = initializeSameTU(); |
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| 17 | |
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| 18 | // Linker initialized: |
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| 19 | // Check that access to linker initialized globals originating from a different |
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| 20 | // TU's initializer is safe. |
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| 21 | |
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| 22 | int A = (1 << 1) + (1 << 3) + (1 << 5), B; |
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| 23 | int getAB() { |
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| 24 | return A * B; |
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| 25 | } |
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| 26 | |
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| 27 | // Function local statics: |
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| 28 | // Check that access to function local statics originating from a different |
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| 29 | // TU's initializer is safe. |
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| 30 | |
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| 31 | int countCalls() { |
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| 32 | static int calls; |
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| 33 | return ++calls; |
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| 34 | } |
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| 35 | |
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| 36 | // Trivial constructor, non-trivial destructor. |
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| 37 | struct StructWithDtor { |
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| 38 | ~StructWithDtor() { } |
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| 39 | int value; |
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| 40 | }; |
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| 41 | StructWithDtor struct_with_dtor; |
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| 42 | int getStructWithDtorValue() { return struct_with_dtor.value; } |
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| 43 | |
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| 44 | int main() { return 0; } |
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| 45 | |
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| 46 | // CHECK: DynInitPoison |
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| 47 | // CHECK: DynInitPoison |
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| 48 | |
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| 49 | // In general case entire set of DynInitPoison must be followed by at lest one |
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| 50 | // DynInitUnpoison. In some cases we can limit the number of DynInitUnpoison, |
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| 51 | // see initialization-nobug-lld.cpp. |
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| 52 | |
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| 53 | // CHECK: DynInitUnpoison |
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| 54 | |
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