0efb376c20
These make cross compiling the test suite more difficult, as you need the sysroot to contain these headers and libraries cross compiled for your target. It's straightforward to stick with the corresponding C headers.
58 lines
1.6 KiB
C++
58 lines
1.6 KiB
C++
//===-- FPExceptMatchers.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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#include "FPExceptMatcher.h"
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#include "src/__support/macros/config.h"
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#include "test/UnitTest/ExecuteFunction.h" // FunctionCaller
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#include "test/UnitTest/Test.h"
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#include "hdr/types/fenv_t.h"
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#include "src/__support/FPUtil/FEnvImpl.h"
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#include <setjmp.h>
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#include <signal.h>
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#if LIBC_TEST_HAS_MATCHERS()
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namespace LIBC_NAMESPACE_DECL {
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namespace testing {
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#if defined(_WIN32)
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#define sigjmp_buf jmp_buf
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#define sigsetjmp(buf, save) setjmp(buf)
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#define siglongjmp(buf, val) longjmp(buf, val)
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#endif
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static thread_local sigjmp_buf jumpBuffer;
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static thread_local bool caughtExcept;
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static void sigfpeHandler(int sig) {
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caughtExcept = true;
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siglongjmp(jumpBuffer, -1);
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}
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FPExceptMatcher::FPExceptMatcher(FunctionCaller *func) {
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sighandler_t oldSIGFPEHandler = signal(SIGFPE, &sigfpeHandler);
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caughtExcept = false;
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fenv_t oldEnv;
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fputil::get_env(&oldEnv);
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if (sigsetjmp(jumpBuffer, 1) == 0)
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func->call();
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// We restore the previous floating point environment after
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// the call to the function which can potentially raise SIGFPE.
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fputil::set_env(&oldEnv);
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signal(SIGFPE, oldSIGFPEHandler);
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exceptionRaised = caughtExcept;
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}
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} // namespace testing
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} // namespace LIBC_NAMESPACE_DECL
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#endif // LIBC_TEST_HAS_MATCHERS()
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