ca50840b5b
While investigating another issue, I noticed that `MaybeReexec()` never actually "re-executes via `execv()`" anymore. `DyldNeedsEnvVariable()` only returned true on macOS 10.10 and below. Usually, I try to avoid "unnecessary" cleanups (it's hard to be certain that there truly is no fallout), but I decided to do this one because: * I initially tricked myself into thinking that `MaybeReexec()` was relevant to my original investigation (instead of being dead code). * The deleted code itself is quite complicated. * Over time a few other things were mushed into `MaybeReexec()`: initializing `MonotonicNanoTime()`, verifying interceptors are working, and stripping the `DYLD_INSERT_LIBRARIES` env var to avoid problems when forking. * This platform-specific thing leaked into `sanitizer_common.h`. * The `ReexecDisabled()` config nob relies on the "strong overrides weak pattern", which is now problematic and can be completely removed. * `ReexecDisabled()` actually hid another issue with interceptors not working in unit tests. I added an explicit `verify_interceptors` (defaults to `true`) option instead. Differential Revision: https://reviews.llvm.org/D129157
41 lines
1.6 KiB
C++
41 lines
1.6 KiB
C++
//===-- asan_test_main.cpp ------------------------------------------------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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//
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// This file is a part of AddressSanitizer, an address sanity checker.
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//
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//===----------------------------------------------------------------------===//
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#include "asan_test_utils.h"
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#include "sanitizer_common/sanitizer_platform.h"
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// Default ASAN_OPTIONS for the unit tests.
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extern "C" const char* __asan_default_options() {
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#if SANITIZER_APPLE
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// On Darwin, we default to `abort_on_error=1`, which would make tests run
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// much slower. Let's override this and run lit tests with 'abort_on_error=0'
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// and make sure we do not overwhelm the syslog while testing. Also, let's
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// turn symbolization off to speed up testing, especially when not running
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// with llvm-symbolizer but with atos.
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return "symbolize=false:abort_on_error=0:log_to_syslog=0";
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#elif SANITIZER_SUPPRESS_LEAK_ON_PTHREAD_EXIT
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// On PowerPC and ARM Thumb, a couple tests involving pthread_exit fail due to
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// leaks detected by LSan. Symbolized leak report is required to apply a
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// suppression for this known problem.
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return "";
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#else
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// Let's turn symbolization off to speed up testing (more than 3 times speedup
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// observed).
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return "symbolize=false";
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#endif
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}
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int main(int argc, char **argv) {
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testing::GTEST_FLAG(death_test_style) = "threadsafe";
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testing::InitGoogleTest(&argc, argv);
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return RUN_ALL_TESTS();
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}
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