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The type definitions come from Clang's unwind.h (i.e., clang/lib/Headers/unwind.h); having them in libunwind's unwind.h too prevents breakage when the libunwind headers are used instead of Clang's. Issue: eng/toolchain/gnat-llvm#115 See merge request eng/toolchain/llvm-project!24.
57 lines
1.8 KiB
C++
57 lines
1.8 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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#include <unwind-pe.h>
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const uint8_t TestData[] = {0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07};
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int main() {
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struct {
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uint8_t Encoding;
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ptrdiff_t Length;
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_Unwind_Ptr Result;
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} Tests[] = {{DW_EH_PE_absptr, sizeof(void *), 0x0706050403020100},
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{DW_EH_PE_udata2, 2, 0x0100},
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{DW_EH_PE_udata4, 4, 0x03020100},
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{DW_EH_PE_udata8, 8, 0x0706050403020100},
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{DW_EH_PE_sdata2, 2, 0x0100},
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{DW_EH_PE_sdata4, 4, 0x03020100},
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{DW_EH_PE_sdata8, 8, 0x0706050403020100}};
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for (auto &T : Tests) {
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uint64_t Result = 0xaa;
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const auto *NewData =
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read_encoded_value_with_base(T.Encoding, 0, TestData, &Result);
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if (NewData - TestData != T.Length || Result != T.Result)
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return 1;
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if (size_of_encoded_value(T.Encoding) != T.Length)
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return 2;
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}
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{
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// ULEB128 example from Figure 22 of the DWARF4 stardard
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const uint8_t ULEB128Data[] = {57 + 0x80, 100};
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_uleb128_t Result = 0xaa;
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const auto *NewData = read_uleb128(ULEB128Data, &Result);
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if (NewData - ULEB128Data != 2 || Result != 12857)
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return 3;
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}
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{
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// SLEB128 example from Figure 23 of the DWARF4 stardard
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const uint8_t SLEB128Data[] = {0x7f + 0x80, 0x7e};
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_sleb128_t Result = 0xaa;
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const auto *NewData = read_sleb128(SLEB128Data, &Result);
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if (NewData - SLEB128Data != 2 || Result != -129)
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return 4;
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}
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return 0;
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}
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