process.cc (7532:3f6413fc37a2) process.cc (7720:65d338a8dba4)
1/*
2 * Copyright (c) 2003-2004 The Regents of The University of Michigan
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions are
7 * met: redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer;

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64
65 //Initialize these to 0s
66 fillStart = 0;
67 spillStart = 0;
68}
69
70void SparcLiveProcess::handleTrap(int trapNum, ThreadContext *tc)
71{
1/*
2 * Copyright (c) 2003-2004 The Regents of The University of Michigan
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions are
7 * met: redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer;

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64
65 //Initialize these to 0s
66 fillStart = 0;
67 spillStart = 0;
68}
69
70void SparcLiveProcess::handleTrap(int trapNum, ThreadContext *tc)
71{
72 PCState pc = tc->pcState();
72 switch(trapNum)
73 {
74 case 0x01: //Software breakpoint
73 switch(trapNum)
74 {
75 case 0x01: //Software breakpoint
75 warn("Software breakpoint encountered at pc %#x.\n", tc->readPC());
76 warn("Software breakpoint encountered at pc %#x.\n", pc.pc());
76 break;
77 case 0x02: //Division by zero
77 break;
78 case 0x02: //Division by zero
78 warn("Software signaled a division by zero at pc %#x.\n",
79 tc->readPC());
79 warn("Software signaled a division by zero at pc %#x.\n", pc.pc());
80 break;
81 case 0x03: //Flush window trap
82 flushWindows(tc);
83 break;
84 case 0x04: //Clean windows
85 warn("Ignoring process request for clean register "
80 break;
81 case 0x03: //Flush window trap
82 flushWindows(tc);
83 break;
84 case 0x04: //Clean windows
85 warn("Ignoring process request for clean register "
86 "windows at pc %#x.\n", tc->readPC());
86 "windows at pc %#x.\n", pc.pc());
87 break;
88 case 0x05: //Range check
87 break;
88 case 0x05: //Range check
89 warn("Software signaled a range check at pc %#x.\n",
90 tc->readPC());
89 warn("Software signaled a range check at pc %#x.\n", pc.pc());
91 break;
92 case 0x06: //Fix alignment
93 warn("Ignoring process request for os assisted unaligned accesses "
90 break;
91 case 0x06: //Fix alignment
92 warn("Ignoring process request for os assisted unaligned accesses "
94 "at pc %#x.\n", tc->readPC());
93 "at pc %#x.\n", pc.pc());
95 break;
96 case 0x07: //Integer overflow
94 break;
95 case 0x07: //Integer overflow
97 warn("Software signaled an integer overflow at pc %#x.\n",
98 tc->readPC());
96 warn("Software signaled an integer overflow at pc %#x.\n", pc.pc());
99 break;
100 case 0x32: //Get integer condition codes
101 warn("Ignoring process request to get the integer condition codes "
97 break;
98 case 0x32: //Get integer condition codes
99 warn("Ignoring process request to get the integer condition codes "
102 "at pc %#x.\n", tc->readPC());
100 "at pc %#x.\n", pc.pc());
103 break;
104 case 0x33: //Set integer condition codes
105 warn("Ignoring process request to set the integer condition codes "
101 break;
102 case 0x33: //Set integer condition codes
103 warn("Ignoring process request to set the integer condition codes "
106 "at pc %#x.\n", tc->readPC());
104 "at pc %#x.\n", pc.pc());
107 break;
108 default:
109 panic("Unimplemented trap to operating system: trap number %#x.\n", trapNum);
110 }
111}
112
113void
114SparcLiveProcess::initState()

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397 //tc->setIntReg(ArgumentReg[0], argc);
398 //tc->setIntReg(ArgumentReg[1], argv_array_base);
399 tc->setIntReg(StackPointerReg, stack_min - StackBias);
400
401 // %g1 is a pointer to a function that should be run at exit. Since we
402 // don't have anything like that, it should be set to 0.
403 tc->setIntReg(1, 0);
404
105 break;
106 default:
107 panic("Unimplemented trap to operating system: trap number %#x.\n", trapNum);
108 }
109}
110
111void
112SparcLiveProcess::initState()

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395 //tc->setIntReg(ArgumentReg[0], argc);
396 //tc->setIntReg(ArgumentReg[1], argv_array_base);
397 tc->setIntReg(StackPointerReg, stack_min - StackBias);
398
399 // %g1 is a pointer to a function that should be run at exit. Since we
400 // don't have anything like that, it should be set to 0.
401 tc->setIntReg(1, 0);
402
405 Addr prog_entry = objFile->entryPoint();
406 tc->setPC(prog_entry);
407 tc->setNextPC(prog_entry + sizeof(MachInst));
408 tc->setNextNPC(prog_entry + (2 * sizeof(MachInst)));
403 tc->pcState(objFile->entryPoint());
409
410 //Align the "stack_min" to a page boundary.
411 stack_min = roundDown(stack_min, pageSize);
412
413// num_processes++;
414}
415
416void

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405 //Align the "stack_min" to a page boundary.
406 stack_min = roundDown(stack_min, pageSize);
407
408// num_processes++;
409}
410
411void

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