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annotate projects/compiler-rt/test/fuzzer/AbsNegAndConstantTest.cpp @ 131:f476a9ba4795

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http://llvm.org/svn/llvm-project/compiler-rt/trunk compiler-rt
author mir3636
date Fri, 16 Feb 2018 21:02:11 +0900
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131
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1 // This file is distributed under the University of Illinois Open Source
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2 // License. See LICENSE.TXT for details.
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3
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4 // abs(x) < 0 and y == Const puzzle.
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5 #include <cstddef>
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6 #include <cstdint>
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7 #include <cstdio>
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8 #include <cstdlib>
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9 #include <cstring>
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10
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11 extern "C" int LLVMFuzzerTestOneInput(const uint8_t *Data, size_t Size) {
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12 if (Size < 8) return 0;
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13 int x;
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14 unsigned y;
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15 memcpy(&x, Data, sizeof(x));
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16 memcpy(&y, Data + sizeof(x), sizeof(y));
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17 if (abs(x) < 0 && y == 0xbaddcafe) {
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18 printf("BINGO; Found the target, exiting; x = 0x%x y 0x%x\n", x, y);
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19 fflush(stdout);
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20 exit(1);
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21 }
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22 return 0;
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23 }
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