remote_gdb.cc (8799:dac1e33e07b0) | remote_gdb.cc (8806:669e93d79ed9) |
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1/* 2 * Copyright (c) 2002-2005 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; --- 142 unchanged lines hidden (view full) --- 151} 152 153/* 154 * Determine if the mapping at va..(va+len) is valid. 155 */ 156bool 157RemoteGDB::acc(Addr va, size_t len) 158{ | 1/* 2 * Copyright (c) 2002-2005 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; --- 142 unchanged lines hidden (view full) --- 151} 152 153/* 154 * Determine if the mapping at va..(va+len) is valid. 155 */ 156bool 157RemoteGDB::acc(Addr va, size_t len) 158{ |
159 if (FullSystem) { 160 Addr last_va; | 159 if (!FullSystem) 160 panic("acc function needs to be rewritten for SE mode\n"); |
161 | 161 |
162 va = TruncPage(va); 163 last_va = RoundPage(va + len); | 162 Addr last_va; |
164 | 163 |
165 do { 166 if (IsK0Seg(va)) { 167 if (va < (K0SegBase + pmem->size())) { 168 DPRINTF(GDBAcc, "acc: Mapping is valid K0SEG <= " 169 "%#x < K0SEG + size\n", va); 170 return true; 171 } else { 172 DPRINTF(GDBAcc, "acc: Mapping invalid %#x " 173 "> K0SEG + size\n", va); 174 return false; 175 } 176 } | 164 va = TruncPage(va); 165 last_va = RoundPage(va + len); |
177 | 166 |
178 /** 179 * This code says that all accesses to palcode (instruction 180 * and data) are valid since there isn't a va->pa mapping 181 * because palcode is accessed physically. At some point this 182 * should probably be cleaned up but there is no easy way to 183 * do it. 184 */ 185 186 if (PcPAL(va) || va < 0x10000) | 167 do { 168 if (IsK0Seg(va)) { 169 if (va < (K0SegBase + pmem->size())) { 170 DPRINTF(GDBAcc, "acc: Mapping is valid K0SEG <= " 171 "%#x < K0SEG + size\n", va); |
187 return true; | 172 return true; |
188 189 Addr ptbr = context->readMiscRegNoEffect(IPR_PALtemp20); 190 PageTableEntry pte = 191 kernel_pte_lookup(context->getPhysProxy(), ptbr, va); 192 if (!pte.valid()) { 193 DPRINTF(GDBAcc, "acc: %#x pte is invalid\n", va); | 173 } else { 174 DPRINTF(GDBAcc, "acc: Mapping invalid %#x " 175 "> K0SEG + size\n", va); |
194 return false; 195 } | 176 return false; 177 } |
196 va += PageBytes; 197 } while (va < last_va); | 178 } |
198 | 179 |
199 DPRINTF(GDBAcc, "acc: %#x mapping is valid\n", va); 200 return true; 201 } else { 202 panic("acc function needs to be rewritten for SE mode\n"); 203 } | 180 /** 181 * This code says that all accesses to palcode (instruction 182 * and data) are valid since there isn't a va->pa mapping 183 * because palcode is accessed physically. At some point this 184 * should probably be cleaned up but there is no easy way to 185 * do it. 186 */ 187 188 if (PcPAL(va) || va < 0x10000) 189 return true; 190 191 Addr ptbr = context->readMiscRegNoEffect(IPR_PALtemp20); 192 PageTableEntry pte = 193 kernel_pte_lookup(context->getPhysProxy(), ptbr, va); 194 if (!pte.valid()) { 195 DPRINTF(GDBAcc, "acc: %#x pte is invalid\n", va); 196 return false; 197 } 198 va += PageBytes; 199 } while (va < last_va); 200 201 DPRINTF(GDBAcc, "acc: %#x mapping is valid\n", va); 202 return true; |
204} 205 206/* 207 * Translate the kernel debugger register format into the GDB register 208 * format. 209 */ 210void 211RemoteGDB::getregs() --- 111 unchanged lines hidden --- | 203} 204 205/* 206 * Translate the kernel debugger register format into the GDB register 207 * format. 208 */ 209void 210RemoteGDB::getregs() --- 111 unchanged lines hidden --- |