6a884a9aef
Previously, the list of libc++abi symbols that we re-export from libc++ would be partly encoded in libc++abi (and re-exported automatically via the cxxabi-reexports target), and partly hard-coded in libcxx/lib/libc++abi.exp. The duplication of information led to symbols not being exported from libc++ after being added to libc++abi when they should have been. This patch removes the duplication of information. After this patch, the full list of symbols to re-export from libc++abi is handled by the cxxabi-reexports target and is stored in libcxxabi. The symbols newly re-exported from libc++ are mainly new fundamental typeinfos and a bunch of functions and classes that are part of libc++abi but are most likely implementation details. In the future, it would be possible to try to trim down the set of what we export from libc++abi (and hence what we re-export from libc++) to remove some implementation detail symbols. Fixes #79008
36 lines
1.3 KiB
C++
36 lines
1.3 KiB
C++
//===----------------------------------------------------------------------===//
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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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// UNSUPPORTED: no-exceptions
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// This tests that libc++abi still provides __cxa_uncaught_exception() for
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// ABI compatibility, even though the Standard doesn't require it to.
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// __cxa_uncaught_exception was not re-exported from libc++ previously. This leads
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// to undefined symbols when linking against a libc++ that re-exports the symbols,
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// but running against a libc++ that doesn't. Fortunately, usage of __cxa_uncaught_exception()
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// in the wild seems to be close to non-existent.
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// XFAIL: stdlib=apple-libc++ && target={{.+}}-apple-macosx10.{{9|10|11|12|13|14|15}}
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// XFAIL: stdlib=apple-libc++ && target={{.+}}-apple-macosx{{(11|12|13|14)([.][0-9]+)?}}
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#include <cxxabi.h>
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#include <cassert>
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// namespace __cxxabiv1 {
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// extern bool __cxa_uncaught_exception () throw();
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// }
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struct A {
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~A() { assert( __cxxabiv1::__cxa_uncaught_exception()); }
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};
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int main () {
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try { A a; throw 3; assert(false); }
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catch (int) {}
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}
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