| 1 | // RUN: %clang_cl_asan %Od %s %Fe%t |
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| 2 | // RUN: %run %t | FileCheck %s |
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| 3 | |
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| 4 | // This is a test for http://code.google.com/p/address-sanitizer/issues/detail?id=305 |
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| 5 | |
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| 6 | #include <stdio.h> |
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| 7 | |
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| 8 | typedef void (*FPTR)(); |
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| 9 | |
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| 10 | // __xi_a and __xi_z are defined in VC/crt/src/crt0dat.c |
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| 11 | // and are located in .CRT$XIA and .CRT$XIZ respectively. |
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| 12 | extern "C" FPTR __xi_a, __xi_z; |
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| 13 | |
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| 14 | int main() { |
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| 15 | unsigned count = 0; |
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| 16 | |
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| 17 | // Iterate through CRT initializers. |
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| 18 | for (FPTR* it = &__xi_a; it < &__xi_z; ++it) { |
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| 19 | if (*it) |
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| 20 | count++; |
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| 21 | } |
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| 22 | |
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| 23 | printf(format: "Number of nonzero CRT initializers: %u\n" , count); |
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| 24 | // CHECK: Number of nonzero CRT initializers |
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| 25 | } |
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| 26 | |
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| 27 | void call_me_maybe() {} |
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| 28 | |
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| 29 | #pragma data_seg(".CRT$XIB") |
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| 30 | // Add an initializer that shouldn't get its own redzone. |
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| 31 | FPTR run_on_startup = call_me_maybe; |
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| 32 | |
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