xref: /external/vixl/examples/debugger.cc

// Copyright 2013, ARM Limited
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//
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// modification, are permitted provided that the following conditions are met:
//
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//     this list of conditions and the following disclaimer.
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#include "examples.h"

// This is an interactive example, not to be used for testing.
#ifndef TEST_EXAMPLES

#define BUF_SIZE (4096)
#define __ masm->

// The aim is to let the user "play" with the debugger. Brk will trigger the
// debugger shell.
void GenerateBreak(MacroAssembler* masm) {
  Label hop;
  __ Brk();
  __ Nop();
  __ B(&hop);
  __ Nop();
  __ Bind(&hop);
  __ Mov(x1, 123);
  __ Mov(x2, 456);
  __ Add(x0, x1, x2);
  __ Ret();
}


int main(void) {
  // Create and initialize the assembler and the debugger.
  byte assm_buf[BUF_SIZE];
  MacroAssembler masm(assm_buf, BUF_SIZE);
  Decoder decoder;
  Debugger debugger(&decoder);

  // Generate the code for the example function.
  Label start;
  masm.Bind(&start);
  GenerateBreak(&masm);
  masm.FinalizeCode();

  // Run the example function.
  debugger.RunFrom(start.target());
  printf("Debugger example run\n");

  return 0;
}
#endif