1 // Copyright 2014, VIXL authors
2 // All rights reserved.
3 //
4 // Redistribution and use in source and binary forms, with or without
5 // modification, are permitted provided that the following conditions are met:
6 //
7 // * Redistributions of source code must retain the above copyright notice,
8 // this list of conditions and the following disclaimer.
9 // * Redistributions in binary form must reproduce the above copyright notice,
10 // this list of conditions and the following disclaimer in the documentation
11 // and/or other materials provided with the distribution.
12 // * Neither the name of ARM Limited nor the names of its contributors may be
13 // used to endorse or promote products derived from this software without
14 // specific prior written permission.
15 //
16 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS CONTRIBUTORS "AS IS" AND
17 // ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
18 // WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
19 // DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
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21 // DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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24 // OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
25 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26
27 #include "examples.h"
28
29
30 // This is an interactive example, not to be used for testing.
31 #ifndef TEST_EXAMPLES
32
33 #define __ masm->
34
35 // The aim is to let the user "play" with the debugger. Brk will trigger the
36 // debugger shell.
GenerateBreak(MacroAssembler * masm)37 void GenerateBreak(MacroAssembler* masm) {
38 Label hop;
39 __ Brk();
40 __ Nop();
41 __ B(&hop);
42 __ Nop();
43 __ Bind(&hop);
44 __ Mov(x1, 123);
45 __ Mov(x2, 456);
46 __ Add(x0, x1, x2);
47 __ Ret();
48 }
49
50
51 #ifdef VIXL_INCLUDE_SIMULATOR_AARCH64
main(void)52 int main(void) {
53 MacroAssembler masm;
54 Decoder decoder;
55 Debugger debugger(&decoder);
56
57 // Generate the code for the example function.
58 Label start;
59 masm.Bind(&start);
60 GenerateBreak(&masm);
61 masm.FinalizeCode();
62
63 // Run the example function.
64 debugger.RunFrom(masm.GetLabelAddress<Instruction*>(&start));
65 printf("Debugger example run\n");
66
67 return 0;
68 }
69 #else
70 // Without the simulator there is nothing to test.
main(void)71 int main(void) { return 0; }
72 #endif // VIXL_INCLUDE_SIMULATOR_AARCH64
73 #endif // TEST_EXAMPLES
74