1// Copyright (c) 2008 The Hewlett-Packard Development Company
2// All rights reserved.
3//
4// The license below extends only to copyright in the software and shall
5// not be construed as granting a license to any other intellectual
6// property including but not limited to intellectual property relating
7// to a hardware implementation of the functionality of the software
8// licensed hereunder. You may use the software subject to the license

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37
38//////////////////////////////////////////////////////////////////////////
39//
40// Debug Microops
41//
42//////////////////////////////////////////////////////////////////////////
43
44output header {{
45 class MicroDebugBase : public X86ISA::X86MicroopBase
46 {
47 protected:
48 typedef GenericISA::M5DebugFault::DebugFunc DebugFunc;
49 DebugFunc func;
50 std::string message;
51 uint8_t cc;
52
53 public:
54 MicroDebugBase(ExtMachInst machInst, const char * mnem,
55 const char * instMnem, uint64_t setFlags,
56 DebugFunc _func, std::string _message, uint8_t _cc) :
57 X86MicroopBase(machInst, mnem, instMnem, setFlags, No_OpClass),
58 func(_func), message(_message), cc(_cc)
59 {}
60
61 std::string
62 generateDisassembly(Addr pc, const SymbolTable *symtab) const
63 {
64 std::stringstream response;
65
66 printMnemonic(response, instMnem, mnemonic);
67 response << "\"" << message << "\"";
68
69 return response.str();
70 }
71 };
72}};
73
74def template MicroDebugDeclare {{
75 class %(class_name)s : public %(base_class)s
76 {
77 public:
78 %(class_name)s(ExtMachInst _machInst, const char * instMnem,
79 uint64_t setFlags, std::string _message, uint8_t _cc);
80
81 Fault execute(ExecContext *, Trace::InstRecord *) const;
82 };
83}};
84
85def template MicroDebugExecute {{
86 Fault
87 %(class_name)s::execute(ExecContext *xc,
88 Trace::InstRecord *traceData) const
89 {
90 %(op_decl)s
91 %(op_rd)s
92 if (%(cond_test)s) {
93 return std::make_shared<GenericISA::M5DebugFault>(func,
94 message);
95 } else {
96 return NoFault;
97 }
98 }
99}};
100
101def template MicroDebugConstructor {{
102 %(class_name)s::%(class_name)s(
103 ExtMachInst machInst, const char * instMnem, uint64_t setFlags,
104 std::string _message, uint8_t _cc) :
105 %(base_class)s(machInst, "%(func)s", instMnem,
106 setFlags, %(func_num)s, _message, _cc)
107 {
108 %(constructor)s;
109 }
110}};
111
112let {{
113 class MicroDebug(X86Microop):
114 def __init__(self, message, flags=None):
115 self.message = message
116 if flags:
117 if not isinstance(flags, (list, tuple)):
118 raise Exception, "flags must be a list or tuple of flags"
119 self.cond = " | ".join(flags)
120 self.className += "Flags"
121 else:
122 self.cond = "0"
123
124 def getAllocator(self, microFlags):
125 allocator = '''new %(class_name)s(machInst, macrocodeBlock,
126 %(flags)s, "%(message)s", %(cc)s)''' % {
127 "class_name" : self.className,
128 "flags" : self.microFlagsText(microFlags),
129 "message" : self.message,
130 "cc" : self.cond}
131 return allocator
132
133 exec_output = ""
134 header_output = ""
135 decoder_output = ""
136
137 def buildDebugMicro(func, func_num):
138 global exec_output, header_output, decoder_output
139
140 iop = InstObjParams(func, "Micro%sFlags" % func.capitalize(),
141 "MicroDebugBase",
142 {"code": "",
143 "func": func,
144 "func_num": "GenericISA::M5DebugFault::%s" % func_num,
145 "cond_test": "checkCondition(ccFlagBits | cfofBits | \
146 dfBit | ecfBit | ezfBit, cc)"})
147 exec_output += MicroDebugExecute.subst(iop)
148 header_output += MicroDebugDeclare.subst(iop)
149 decoder_output += MicroDebugConstructor.subst(iop)
150
151 iop = InstObjParams(func, "Micro%s" % func.capitalize(),
152 "MicroDebugBase",
153 {"code": "",
154 "func": func,
155 "func_num": "GenericISA::M5DebugFault::%s" % func_num,
156 "cond_test": "true"})
157 exec_output += MicroDebugExecute.subst(iop)
158 header_output += MicroDebugDeclare.subst(iop)
159 decoder_output += MicroDebugConstructor.subst(iop)
160
161 class MicroDebugChild(MicroDebug):
162 className = "Micro%s" % func.capitalize()
163
164 global microopClasses
165 microopClasses[func] = MicroDebugChild
166
167 buildDebugMicro("panic", "PanicFunc")
168 buildDebugMicro("fatal", "FatalFunc")
169 buildDebugMicro("warn", "WarnFunc")
170 buildDebugMicro("warn_once", "WarnOnceFunc")
171}};