0f43b92980
If the lookup using RTLD_NEXT failed, the sanitizer runtime library is later in the library search order than the DSO that we are trying to intercept, which means that we cannot intercept this function. We still want the address of the real definition, though, so look it up using RTLD_DEFAULT. Differential Revision: https://reviews.llvm.org/D39779 llvm-svn: 317930
21 lines
582 B
C++
21 lines
582 B
C++
// REQUIRES: android
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// Tests that ubsan can detect errors on Android if libc appears before the
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// runtime in the library search order, which means that we cannot intercept
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// symbols.
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// RUN: %clangxx %p/Inputs/no-interception-dso.c -fsanitize=undefined -fPIC -shared -o %dynamiclib %ld_flags_rpath_so
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// Make sure that libc is first in DT_NEEDED.
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// RUN: %clangxx %s -lc -o %t %ld_flags_rpath_exe
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// RUN: %run %t 2>&1 | FileCheck %s
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#include <limits.h>
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int dso_function(int);
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int main(int argc, char **argv) {
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// CHECK: signed integer overflow
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dso_function(INT_MAX);
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}
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