2ce71b2c18
When instrumenting C++ code, ubsan ends up referencing the ubsan_type_hash_* object files, which require linking against the C++ ABI library. When building with "clang -x c++", the code is handled as C++, but the compiler still only links as if it was C. Change all cases of "%clang -x c++" into "%clangxx -x c++". This fixes a lot of ubsan tests in mingw mode. Differential Revision: https://reviews.llvm.org/D147687
37 lines
2.3 KiB
C++
37 lines
2.3 KiB
C++
// RUN: %clang -x c -fsanitize=alignment -O0 %s -o %t && %run %t 2>&1 | FileCheck %s --implicit-check-not=" assumption " --implicit-check-not="note:" --implicit-check-not="runtime error:"
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// RUN: %clang -x c -fsanitize=alignment -O1 %s -o %t && %run %t 2>&1 | FileCheck %s --implicit-check-not=" assumption " --implicit-check-not="note:" --implicit-check-not="runtime error:"
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// RUN: %clang -x c -fsanitize=alignment -O2 %s -o %t && %run %t 2>&1 | FileCheck %s --implicit-check-not=" assumption " --implicit-check-not="note:" --implicit-check-not="runtime error:"
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// RUN: %clang -x c -fsanitize=alignment -O3 %s -o %t && %run %t 2>&1 | FileCheck %s --implicit-check-not=" assumption " --implicit-check-not="note:" --implicit-check-not="runtime error:"
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// RUN: %clangxx -x c++ -fsanitize=alignment -O0 %s -o %t && %run %t 2>&1 | FileCheck %s --implicit-check-not=" assumption " --implicit-check-not="note:" --implicit-check-not="runtime error:"
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// RUN: %clangxx -x c++ -fsanitize=alignment -O1 %s -o %t && %run %t 2>&1 | FileCheck %s --implicit-check-not=" assumption " --implicit-check-not="note:" --implicit-check-not="runtime error:"
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// RUN: %clangxx -x c++ -fsanitize=alignment -O2 %s -o %t && %run %t 2>&1 | FileCheck %s --implicit-check-not=" assumption " --implicit-check-not="note:" --implicit-check-not="runtime error:"
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// RUN: %clangxx -x c++ -fsanitize=alignment -O3 %s -o %t && %run %t 2>&1 | FileCheck %s --implicit-check-not=" assumption " --implicit-check-not="note:" --implicit-check-not="runtime error:"
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#include <stdlib.h>
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typedef char *__attribute__((align_value(0x8000))) aligned_char;
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struct ac_struct {
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aligned_char a;
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};
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char *load_from_ac_struct(struct ac_struct *x) {
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return x->a;
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}
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int main(int argc, char* argv[]) {
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char *ptr = (char *)malloc(2);
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struct ac_struct x;
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x.a = ptr + 1; // FIXME: it is weird that this does not also have an assumption.
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load_from_ac_struct(&x);
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// CHECK: {{.*}}align-assume-{{.*}}.cpp:[[@LINE-9]]:13: runtime error: assumption of 32768 byte alignment for pointer of type 'aligned_char' (aka 'char *') failed
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// CHECK: {{.*}}align-assume-{{.*}}.cpp:[[@LINE-17]]:30: note: alignment assumption was specified here
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// CHECK: 0x{{.*}}: note: address is {{.*}} aligned, misalignment offset is {{.*}} byte
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free(ptr);
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return 0;
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}
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