third_party/libcxxabi: Add test suite #1076
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Added the `libcxxabi` test suite as found in LLVM 17.0.6. Some tests that do not apply to the current configuration of comsopolitan are not added. These include: - `backtrace_test`, `forced_unwind*`: Use unwind function unsupported in SjLj mode. - `noexception*`: Designed to test `libcxxabi` in no exceptions mode. Some tests are added but not enabled due to bugs specific to GCC or cosmopolitan. These are clearly indicated in the `BUILD.mk` file.
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While we don't call POSIX thread key destructors from exit(), we do need to call these, since C++ uses it for TLS object destructors. See #1076
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This test was was failing on GitHub Actions because GA uses Linux and Linux supports resource usage accounting. Cosmo's compile.com program imposes CPU, memory and file size limits on both the compiler and the test programs themselves. See #1076
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We now store values in jmp_buf where the compiler wants them to be. This fixes code that calls __builtin_setjmp() and __builtin_longjmp() such as libunwind. All libcxxabi tests are now passing on ARM64. See #1076
jart
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Added the
libcxxabitest suite as found in LLVM 17.0.6.Some tests that do not apply to the current configuration of comsopolitan are not added. These include:
backtrace_test,forced_unwind*: Use unwind function unsupported in SjLj mode.noexception*: Designed to testlibcxxabiin no exceptions mode.Some tests are added but not enabled due to bugs specific to GCC or cosmopolitan. These are clearly indicated in the
BUILD.mkfile.