ARM: Add BKPT instruction

--HG--
rename : src/arch/arm/isa/formats/unknown.isa => src/arch/arm/isa/formats/breakpoint.isa
This commit is contained in:
Ali Saidi 2010-06-02 12:58:16 -05:00
parent b8ec214553
commit d2ba9243f5
3 changed files with 98 additions and 0 deletions

View file

@ -73,6 +73,7 @@ format DataOp {
0x9: ArmBlxReg::armBlxReg(); 0x9: ArmBlxReg::armBlxReg();
} }
0x5: ArmSatAddSub::armSatAddSub(); 0x5: ArmSatAddSub::armSatAddSub();
0x7: Breakpoint::bkpt();
} }
0x1: ArmHalfWordMultAndMultAcc::armHalfWordMultAndMultAcc(); 0x1: ArmHalfWordMultAndMultAcc::armHalfWordMultAndMultAcc();
} }

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@ -0,0 +1,94 @@
// -*- mode:c++ -*-
// Copyright (c) 2010 ARM Limited
// All rights reserved
//
// The license below extends only to copyright in the software and shall
// not be construed as granting a license to any other intellectual
// property including but not limited to intellectual property relating
// to a hardware implementation of the functionality of the software
// licensed hereunder. You may use the software subject to the license
// terms below provided that you ensure that this notice is replicated
// unmodified and in its entirety in all distributions of the software,
// modified or unmodified, in source code or in binary form.
//
// Copyright (c) 2007-2008 The Florida State University
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met: redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer;
// redistributions in binary form must reproduce the above copyright
// notice, this list of conditions and the following disclaimer in the
// documentation and/or other materials provided with the distribution;
// neither the name of the copyright holders nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
//
// Authors: Stephen Hines
////////////////////////////////////////////////////////////////////
//
// Breakpoint instructions
//
output header {{
/**
* Static instruction class for Breakpoint (illegal) instructions.
* These cause simulator termination if they are executed in a
* non-speculative mode. This is a leaf class.
*/
class Breakpoint : public ArmStaticInst
{
public:
/// Constructor
Breakpoint(ExtMachInst _machInst)
: ArmStaticInst("Breakpoint", _machInst, No_OpClass)
{
// don't call execute() (which panics) if we're on a
// speculative path
flags[IsNonSpeculative] = true;
}
%(BasicExecDeclare)s
std::string
generateDisassembly(Addr pc, const SymbolTable *symtab) const;
};
}};
output decoder {{
std::string
Breakpoint::generateDisassembly(Addr pc, const SymbolTable *symtab) const
{
return csprintf("%-10s (inst 0x%x, opcode 0x%x, binary:%s)",
"Breakpoint", machInst, OPCODE, inst2string(machInst));
}
}};
output exec {{
Fault
Breakpoint::execute(%(CPU_exec_context)s *xc,
Trace::InstRecord *traceData) const
{
return new PrefetchAbort(xc->readPC(), ArmFault::DebugEvent);
}
}};
def format Breakpoint() {{
decode_block = 'return new Breakpoint(machInst);\n'
}};

View file

@ -68,6 +68,9 @@
//Include the unknown format //Include the unknown format
##include "unknown.isa" ##include "unknown.isa"
//Include the breakpoint format
##include "breakpoint.isa"
//Include the formats for data processing instructions //Include the formats for data processing instructions
##include "data.isa" ##include "data.isa"