1/*
2 * Copyright (c) 2009-2010 ARM Limited
3 * All rights reserved.
4 *
5 * The license below extends only to copyright in the software and shall
6 * not be construed as granting a license to any other intellectual
7 * property including but not limited to intellectual property relating
8 * to a hardware implementation of the functionality of the software

--- 49 unchanged lines hidden (view full) ---

58
59 static Fault reset = new Reset;
60 reset->invoke(tc);
61}
62
63uint64_t
64getArgument(ThreadContext *tc, int &number, uint16_t size, bool fp)
65{
66 if (FullSystem) {
67 if (size == (uint16_t)(-1))
68 size = ArmISA::MachineBytes;
69 if (fp)
70 panic("getArgument(): Floating point arguments not implemented\n");
71
72 if (number < NumArgumentRegs) {
73 // If the argument is 64 bits, it must be in an even regiser
74 // number. Increment the number here if it isn't even.
75 if (size == sizeof(uint64_t)) {
76 if ((number % 2) != 0)
77 number++;
78 // Read the two halves of the data. Number is inc here to
79 // get the second half of the 64 bit reg.
80 uint64_t tmp;
81 tmp = tc->readIntReg(number++);
82 tmp |= tc->readIntReg(number) << 32;
83 return tmp;
84 } else {
85 return tc->readIntReg(number);
86 }
87 } else {
88 Addr sp = tc->readIntReg(StackPointerReg);
89 FSTranslatingPortProxy* vp = tc->getVirtProxy();
90 uint64_t arg;
91 if (size == sizeof(uint64_t)) {
92 // If the argument is even it must be aligned
93 if ((number % 2) != 0)
94 number++;
95 arg = vp->read<uint64_t>(sp +
96 (number-NumArgumentRegs) * sizeof(uint32_t));
97 // since two 32 bit args == 1 64 bit arg, increment number
98 number++;
99 } else {
100 arg = vp->read<uint32_t>(sp +
101 (number-NumArgumentRegs) * sizeof(uint32_t));
102 }
103 return arg;
104 }
105 } else {
106 panic("getArgument() only implemented for full system mode.\n");
107 M5_DUMMY_RETURN
108 }
109}
110
111void
112skipFunction(ThreadContext *tc)
113{
114 TheISA::PCState newPC = tc->pcState();
115 newPC.set(tc->readIntReg(ReturnAddressReg) & ~ULL(1));

--- 52 unchanged lines hidden ---