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// Copyright (c) 2008 The Hewlett-Packard Development Company
// 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.
//
// 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: Gabe Black
//////////////////////////////////////////////////////////////////////////
//
// Debug Microops
//
//////////////////////////////////////////////////////////////////////////
output header {{
class MicroDebug : public X86ISA::X86MicroopBase
{
protected:
std::shared_ptr<GenericISA::M5DebugFault> fault;
public:
MicroDebug(ExtMachInst _machInst, const char *mnem,
const char *instMnem, uint64_t setFlags,
GenericISA::M5DebugFault *_fault);
Fault
execute(ExecContext *xc, Trace::InstRecord *traceData) const
{
return fault;
}
std::string
generateDisassembly(Addr pc, const SymbolTable *symtab) const
{
std::stringstream response;
printMnemonic(response, instMnem, mnemonic);
response << "\"" << fault->message() << "\"";
return response.str();
}
};
class MicroDebugFlags : public MicroDebug
{
protected:
uint8_t cc;
public:
MicroDebugFlags(ExtMachInst _machInst, const char *mnem,
const char *instMnem, uint64_t setFlags,
GenericISA::M5DebugFault *_fault, uint8_t _cc);
Fault execute(ExecContext *, Trace::InstRecord *) const;
};
}};
output decoder {{
MicroDebug::MicroDebug(ExtMachInst _machInst, const char *mnem,
const char *instMnem, uint64_t setFlags,
GenericISA::M5DebugFault *_fault) :
X86ISA::X86MicroopBase(_machInst, mnem, instMnem,
setFlags, No_OpClass),
fault(_fault)
{}
}};
def template MicroDebugFlagsExecute {{
Fault
%(class_name)s::execute(ExecContext *xc,
Trace::InstRecord *traceData) const
{
%(op_decl)s
%(op_rd)s
if (%(cond_test)s) {
return %(base_class)s::execute(xc, traceData);
} else {
return NoFault;
}
}
}};
def template MicroDebugFlagsConstructor {{
%(class_name)s::%(class_name)s(
ExtMachInst machInst, const char *mnem,
const char *instMnem, uint64_t setFlags,
GenericISA::M5DebugFault *_fault, uint8_t _cc) :
%(base_class)s(machInst, mnem, instMnem, setFlags, _fault),
cc(_cc)
{
%(constructor)s;
}
}};
let {{
iop = InstObjParams("", "MicroDebugFlags", "MicroDebug",
{"code": "",
"cond_test": "checkCondition(ccFlagBits | cfofBits | \
dfBit | ecfBit | ezfBit, cc)"})
exec_output = MicroDebugFlagsExecute.subst(iop)
decoder_output = MicroDebugFlagsConstructor.subst(iop)
}};
let {{
class MicroDebug(X86Microop):
def __init__(self, name, fault, message, once, flags):
self.name = name
self.fault = fault
self.message = message
self.once = once
self.flags = flags
if flags and not isinstance(flags, (list, tuple)):
raise Exception, "flags must be a list or tuple of flags"
self.className = "MicroDebugFlags" if flags else "MicroDebug"
def getAllocator(self, microFlags):
if self.once:
fault_allocator_template = \
"new %(fault_type)s(%(token)s, %(message)s)"
else:
fault_allocator_template = \
"new %(fault_type)s(%(message)s)"
fault_allocator = fault_allocator_template % {
"fault_type": self.fault,
"token": "std::string(\"%s\")" % self.message,
"message": "\"%s\"" % self.message
}
args = ["machInst", "\"%s\"" % self.name, "macrocodeBlock",
self.microFlagsText(microFlags), fault_allocator]
if self.flags:
args.append(" | ".join(self.flags))
return "new " + self.className + "(" + ", ".join(args) + ")"
def buildDebugMicro(name, with_once=False):
global microopClasses
fault_class = "GenericISA::M5" + name.capitalize() + "Fault"
class MicroDebugChild(MicroDebug):
def __init__(self, message, flags=None):
super(MicroDebugChild, self).__init__(
name, fault_class, message, False, flags)
microopClasses[name] = MicroDebugChild
if with_once:
fault_once_class = \
"GenericISA::M5" + name.capitalize() + "OnceFault"
name_once = name + "_once"
class MicroDebugOnceChild(MicroDebug):
def __init__(self, message, flags=None):
super(MicroDebugOnceChild, self).__init__(
name_once, fault_once_class, message, True, flags)
microopClasses[name_once] = MicroDebugOnceChild
buildDebugMicro("panic")
buildDebugMicro("fatal")
buildDebugMicro("hack", True)
buildDebugMicro("inform", True)
buildDebugMicro("warn", True)
}};
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