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4fb8ecdef4
Summary: This patch adjusts the signal_frame.pass.cpp to pass on Arm targets: * When Arm EHABI is used the unwinder does not use DWARF, hence the DWARF-specific check unw_is_signal_frame() must be disabled. * Certain C libraries don't include EH tables, so the unwinder must not try to step out of main(). The patch moves the test code out of main() into a separate function to avoid this. Reviewers: saugustine, ostannard, phosek, jfb, mclow.lists Reviewed By: saugustine Subscribers: dexonsmith, aprantl, kristof.beyls, christof, libcxx-commits, pbarrio, labrinea Tags: #libc Differential Revision: https://reviews.llvm.org/D70397
32 lines
816 B
C++
32 lines
816 B
C++
// -*- C++ -*-
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//===----------------------------------------------------------------------===//
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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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// Ensure that functions marked as signal frames are reported as such.
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#include <assert.h>
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#include <stdlib.h>
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#include <libunwind.h>
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void test() {
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asm(".cfi_signal_frame");
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unw_cursor_t cursor;
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unw_context_t uc;
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unw_getcontext(&uc);
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unw_init_local(&cursor, &uc);
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assert(unw_step(&cursor) > 0);
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#if !defined(_LIBUNWIND_ARM_EHABI)
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assert(unw_is_signal_frame(&cursor));
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#endif
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}
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int main() {
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test();
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return 0;
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}
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