eb46c95c3e
Changes the default Windows target triple returned by GetHostTriple.cmake from the old environment names (which we wanted to move away from) to newer, normalized ones. This also requires updating all tests to use the new systems names in constraints. Differential Revision: https://reviews.llvm.org/D47381 llvm-svn: 339307
52 lines
1.7 KiB
C++
52 lines
1.7 KiB
C++
// Test to make sure basic initialization order errors are caught.
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// RUN: %clangxx_asan %macos_min_target_10_11 -O0 %s %p/Helpers/initialization-bug-extra2.cc -o %t-INIT-ORDER-EXE
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// RUN: %env_asan_opts=check_initialization_order=true not %run %t-INIT-ORDER-EXE 2>&1 | FileCheck %s
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// Do not test with optimization -- the error may be optimized away.
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// FIXME: https://code.google.com/p/address-sanitizer/issues/detail?id=186
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// XFAIL: windows-msvc
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// The test is expected to fail on OS X Yosemite and older
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// UNSUPPORTED: osx-no-ld64-live_support
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// UNSUPPORTED: ios
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#include <cstdio>
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// The structure of the test is:
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// "x", "y", "z" are dynamically initialized globals.
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// Value of "x" depends on "y", value of "y" depends on "z".
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// "x" and "z" are defined in this TU, "y" is defined in another one.
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// Thus we shoud stably report initialization order fiasco independently of
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// the translation unit order.
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int initZ() {
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return 5;
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}
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int z = initZ();
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// 'y' is a dynamically initialized global residing in a different TU. This
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// dynamic initializer will read the value of 'y' before main starts. The
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// result is undefined behavior, which should be caught by initialization order
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// checking.
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extern int y;
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int __attribute__((noinline)) initX() {
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return y + 1;
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// CHECK: {{AddressSanitizer: initialization-order-fiasco}}
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// CHECK: {{READ of size .* at 0x.* thread T0}}
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// CHECK: {{0x.* is located 0 bytes inside of global variable .*(y|z).*}}
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// CHECK: registered at:
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// CHECK: 0x{{.*}} in __asan_register_globals
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}
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// This initializer begins our initialization order problems.
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static int x = initX();
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int main() {
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// ASan should have caused an exit before main runs.
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printf("PASS\n");
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// CHECK-NOT: PASS
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return 0;
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}
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