9a36b3e147
The idea is to ensure that the ASan runtime gets initialized early (i.e. before other initializers/constructors) even when DYLD_INSERT_LIBRARIES is not used. In that case, the interceptors are not installed (on OS X, DYLD_INSERT_LIBRARIES is required for interceptors to work), and therefore ASan gets currently initialized quite late -- from the main executable's module initializer. The following issues are a consequence of this: https://code.google.com/p/address-sanitizer/issues/detail?id=363 https://code.google.com/p/address-sanitizer/issues/detail?id=357 Both of them are fixed with this patch. Reviewed at http://reviews.llvm.org/D7117 llvm-svn: 226929
34 lines
785 B
C++
34 lines
785 B
C++
// Main executable is uninstrumented, but linked to ASan runtime.
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// Regression test for https://code.google.com/p/address-sanitizer/issues/detail?id=357.
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// RUN: %clangxx -g -O0 %s -c -o %t.o
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// RUN: %clangxx_asan -g -O0 %t.o -o %t
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// RUN: %run %t 2>&1 | FileCheck %s
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include "sanitizer/asan_interface.h"
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void test_shadow(char *p, size_t size) {
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fprintf(stderr, "p = %p\n", p);
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char *q = (char *)__asan_region_is_poisoned(p, size);
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fprintf(stderr, "=%zd=\n", q ? q - p : -1);
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}
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int main(int argc, char *argv[]) {
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char *p = (char *)malloc(10000);
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test_shadow(p, 100);
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free(p);
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// CHECK: =-1=
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test_shadow((char *)&main, 1);
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// CHECK: =-1=
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test_shadow((char *)&p, 1);
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// CHECK: =-1=
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return 0;
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}
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