cpu-exec.c revision f645f7d6fd841e39524e5df8c1a7fd8347f92ac1
18b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project/* 28b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project * i386 emulator main execution loop 38b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project * 48b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project * Copyright (c) 2003-2005 Fabrice Bellard 58b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project * 68b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project * This library is free software; you can redistribute it and/or 78b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project * modify it under the terms of the GNU Lesser General Public 88b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project * License as published by the Free Software Foundation; either 98b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project * version 2 of the License, or (at your option) any later version. 108b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project * 118b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project * This library is distributed in the hope that it will be useful, 128b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project * but WITHOUT ANY WARRANTY; without even the implied warranty of 138b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 148b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project * Lesser General Public License for more details. 158b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project * 168b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project * You should have received a copy of the GNU Lesser General Public 17a5d412078b8e7478d81df03710eacc7a21096ba2David 'Digit' Turner * License along with this library; if not, see <http://www.gnu.org/licenses/>. 188b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project */ 198b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project#include "config.h" 208b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project#include "exec.h" 218b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project#include "disas.h" 228b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project#include "tcg.h" 235d8f37ad78fc66901af50c762029a501561f3b23David 'Digit' Turner#include "kvm.h" 2424cd25ab654ab829ba8e9c0c634db50ed28f325aDavid Turner#include "qemu-barrier.h" 258b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project 268b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project#if !defined(CONFIG_SOFTMMU) 278b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project#undef EAX 288b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project#undef ECX 298b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project#undef EDX 308b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project#undef EBX 318b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project#undef ESP 328b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project#undef EBP 338b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project#undef ESI 348b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project#undef EDI 358b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project#undef EIP 368b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project#include <signal.h> 375d8f37ad78fc66901af50c762029a501561f3b23David 'Digit' Turner#ifdef __linux__ 388b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project#include <sys/ucontext.h> 398b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project#endif 405d8f37ad78fc66901af50c762029a501561f3b23David 'Digit' Turner#endif 418b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project 422c538c86c15d597cc875dc926e4e39285c5625dfDavid 'Digit' Turner#if defined(__sparc__) && !defined(CONFIG_SOLARIS) 438b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project// Work around ugly bugs in glibc that mangle global register contents 448b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project#undef env 458b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project#define env cpu_single_env 468b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project#endif 478b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project 488b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Projectint tb_invalidated_flag; 498b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project 50a5d412078b8e7478d81df03710eacc7a21096ba2David 'Digit' Turner//#define CONFIG_DEBUG_EXEC 518b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project//#define DEBUG_SIGNAL 528b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project 535d8f37ad78fc66901af50c762029a501561f3b23David 'Digit' Turnerint qemu_cpu_has_work(CPUState *env) 545d8f37ad78fc66901af50c762029a501561f3b23David 'Digit' Turner{ 555d8f37ad78fc66901af50c762029a501561f3b23David 'Digit' Turner return cpu_has_work(env); 565d8f37ad78fc66901af50c762029a501561f3b23David 'Digit' Turner} 575d8f37ad78fc66901af50c762029a501561f3b23David 'Digit' Turner 588b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Projectvoid cpu_loop_exit(void) 598b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project{ 6024cd25ab654ab829ba8e9c0c634db50ed28f325aDavid Turner env->current_tb = NULL; 618b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project longjmp(env->jmp_env, 1); 628b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project} 638b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project 648b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project/* exit the current TB from a signal handler. The host registers are 658b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project restored in a state compatible with the CPU emulator 668b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project */ 678b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Projectvoid cpu_resume_from_signal(CPUState *env1, void *puc) 688b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project{ 698b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project#if !defined(CONFIG_SOFTMMU) 705d8f37ad78fc66901af50c762029a501561f3b23David 'Digit' Turner#ifdef __linux__ 718b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project struct ucontext *uc = puc; 725d8f37ad78fc66901af50c762029a501561f3b23David 'Digit' Turner#elif defined(__OpenBSD__) 735d8f37ad78fc66901af50c762029a501561f3b23David 'Digit' Turner struct sigcontext *uc = puc; 745d8f37ad78fc66901af50c762029a501561f3b23David 'Digit' Turner#endif 758b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project#endif 768b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project 778b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project env = env1; 788b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project 798b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project /* XXX: restore cpu registers saved in host registers */ 808b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project 818b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project#if !defined(CONFIG_SOFTMMU) 828b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project if (puc) { 838b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project /* XXX: use siglongjmp ? */ 845d8f37ad78fc66901af50c762029a501561f3b23David 'Digit' Turner#ifdef __linux__ 8524cd25ab654ab829ba8e9c0c634db50ed28f325aDavid Turner#ifdef __ia64 8624cd25ab654ab829ba8e9c0c634db50ed28f325aDavid Turner sigprocmask(SIG_SETMASK, (sigset_t *)&uc->uc_sigmask, NULL); 8724cd25ab654ab829ba8e9c0c634db50ed28f325aDavid Turner#else 888b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project sigprocmask(SIG_SETMASK, &uc->uc_sigmask, NULL); 8924cd25ab654ab829ba8e9c0c634db50ed28f325aDavid Turner#endif 905d8f37ad78fc66901af50c762029a501561f3b23David 'Digit' Turner#elif defined(__OpenBSD__) 915d8f37ad78fc66901af50c762029a501561f3b23David 'Digit' Turner sigprocmask(SIG_SETMASK, &uc->sc_mask, NULL); 925d8f37ad78fc66901af50c762029a501561f3b23David 'Digit' Turner#endif 938b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project } 948b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project#endif 955d8f37ad78fc66901af50c762029a501561f3b23David 'Digit' Turner env->exception_index = -1; 968b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project longjmp(env->jmp_env, 1); 978b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project} 988b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project 998b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project/* Execute the code without caching the generated code. An interpreter 1008b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project could be used if available. */ 1018b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Projectstatic void cpu_exec_nocache(int max_cycles, TranslationBlock *orig_tb) 1028b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project{ 1038b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project unsigned long next_tb; 1048b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project TranslationBlock *tb; 1058b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project 1068b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project /* Should never happen. 1078b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project We only end up here when an existing TB is too long. */ 1088b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project if (max_cycles > CF_COUNT_MASK) 1098b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project max_cycles = CF_COUNT_MASK; 1108b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project 1118b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project tb = tb_gen_code(env, orig_tb->pc, orig_tb->cs_base, orig_tb->flags, 1128b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project max_cycles); 1138b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project env->current_tb = tb; 1148b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project /* execute the generated code */ 1158b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project next_tb = tcg_qemu_tb_exec(tb->tc_ptr); 11624cd25ab654ab829ba8e9c0c634db50ed28f325aDavid Turner env->current_tb = NULL; 1178b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project 1188b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project if ((next_tb & 3) == 2) { 1198b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project /* Restore PC. This may happen if async event occurs before 1208b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project the TB starts executing. */ 1215d8f37ad78fc66901af50c762029a501561f3b23David 'Digit' Turner cpu_pc_from_tb(env, tb); 1228b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project } 1238b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project tb_phys_invalidate(tb, -1); 1248b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project tb_free(tb); 1258b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project} 1268b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project 1278b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Projectstatic TranslationBlock *tb_find_slow(target_ulong pc, 1288b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project target_ulong cs_base, 1298b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project uint64_t flags) 1308b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project{ 1318b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project TranslationBlock *tb, **ptb1; 1328b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project unsigned int h; 1338b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project target_ulong phys_pc, phys_page1, phys_page2, virt_page2; 1348b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project 1358b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project tb_invalidated_flag = 0; 1368b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project 1378b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project /* find translated block using physical mappings */ 1388b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project phys_pc = get_phys_addr_code(env, pc); 1398b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project phys_page1 = phys_pc & TARGET_PAGE_MASK; 1408b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project phys_page2 = -1; 1418b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project h = tb_phys_hash_func(phys_pc); 1428b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project ptb1 = &tb_phys_hash[h]; 1438b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project for(;;) { 1448b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project tb = *ptb1; 1458b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project if (!tb) 1468b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project goto not_found; 1478b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project if (tb->pc == pc && 1488b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project tb->page_addr[0] == phys_page1 && 1498b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project tb->cs_base == cs_base && 1508b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project tb->flags == flags) { 1518b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project /* check next page if needed */ 1528b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project if (tb->page_addr[1] != -1) { 1538b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project virt_page2 = (pc & TARGET_PAGE_MASK) + 1548b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project TARGET_PAGE_SIZE; 1558b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project phys_page2 = get_phys_addr_code(env, virt_page2); 1568b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project if (tb->page_addr[1] == phys_page2) 1578b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project goto found; 1588b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project } else { 1598b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project goto found; 1608b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project } 1618b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project } 1628b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project ptb1 = &tb->phys_hash_next; 1638b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project } 1648b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project not_found: 1658b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project /* if no translated code available, then translate it now */ 1668b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project tb = tb_gen_code(env, pc, cs_base, flags, 0); 1678b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project 1688b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project found: 1698b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project /* we add the TB in the virtual pc hash table */ 1708b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project env->tb_jmp_cache[tb_jmp_cache_hash_func(pc)] = tb; 1718b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project return tb; 1728b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project} 1738b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project 1748b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Projectstatic inline TranslationBlock *tb_find_fast(void) 1758b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project{ 1768b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project TranslationBlock *tb; 1778b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project target_ulong cs_base, pc; 1785d8f37ad78fc66901af50c762029a501561f3b23David 'Digit' Turner int flags; 1798b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project 1808b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project /* we record a subset of the CPU state. It will 1818b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project always be the same before a given translated block 1828b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project is executed. */ 1835d8f37ad78fc66901af50c762029a501561f3b23David 'Digit' Turner cpu_get_tb_cpu_state(env, &pc, &cs_base, &flags); 1848b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project tb = env->tb_jmp_cache[tb_jmp_cache_hash_func(pc)]; 1858b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project if (unlikely(!tb || tb->pc != pc || tb->cs_base != cs_base || 1868b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project tb->flags != flags)) { 1878b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project tb = tb_find_slow(pc, cs_base, flags); 1888b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project } 1898b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project return tb; 1908b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project} 1918b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project 1925d8f37ad78fc66901af50c762029a501561f3b23David 'Digit' Turnerstatic CPUDebugExcpHandler *debug_excp_handler; 1935d8f37ad78fc66901af50c762029a501561f3b23David 'Digit' Turner 1945d8f37ad78fc66901af50c762029a501561f3b23David 'Digit' TurnerCPUDebugExcpHandler *cpu_set_debug_excp_handler(CPUDebugExcpHandler *handler) 1955d8f37ad78fc66901af50c762029a501561f3b23David 'Digit' Turner{ 1965d8f37ad78fc66901af50c762029a501561f3b23David 'Digit' Turner CPUDebugExcpHandler *old_handler = debug_excp_handler; 1975d8f37ad78fc66901af50c762029a501561f3b23David 'Digit' Turner 1985d8f37ad78fc66901af50c762029a501561f3b23David 'Digit' Turner debug_excp_handler = handler; 1995d8f37ad78fc66901af50c762029a501561f3b23David 'Digit' Turner return old_handler; 2005d8f37ad78fc66901af50c762029a501561f3b23David 'Digit' Turner} 2015d8f37ad78fc66901af50c762029a501561f3b23David 'Digit' Turner 2025d8f37ad78fc66901af50c762029a501561f3b23David 'Digit' Turnerstatic void cpu_handle_debug_exception(CPUState *env) 2035d8f37ad78fc66901af50c762029a501561f3b23David 'Digit' Turner{ 2045d8f37ad78fc66901af50c762029a501561f3b23David 'Digit' Turner CPUWatchpoint *wp; 2055d8f37ad78fc66901af50c762029a501561f3b23David 'Digit' Turner 2065d8f37ad78fc66901af50c762029a501561f3b23David 'Digit' Turner if (!env->watchpoint_hit) 207a5d412078b8e7478d81df03710eacc7a21096ba2David 'Digit' Turner QTAILQ_FOREACH(wp, &env->watchpoints, entry) 2085d8f37ad78fc66901af50c762029a501561f3b23David 'Digit' Turner wp->flags &= ~BP_WATCHPOINT_HIT; 2095d8f37ad78fc66901af50c762029a501561f3b23David 'Digit' Turner 2105d8f37ad78fc66901af50c762029a501561f3b23David 'Digit' Turner if (debug_excp_handler) 2115d8f37ad78fc66901af50c762029a501561f3b23David 'Digit' Turner debug_excp_handler(env); 2125d8f37ad78fc66901af50c762029a501561f3b23David 'Digit' Turner} 2135d8f37ad78fc66901af50c762029a501561f3b23David 'Digit' Turner 2148b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project/* main execution loop */ 2158b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project 21624cd25ab654ab829ba8e9c0c634db50ed28f325aDavid Turnervolatile sig_atomic_t exit_request; 21724cd25ab654ab829ba8e9c0c634db50ed28f325aDavid Turner 2188b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Projectint cpu_exec(CPUState *env1) 2198b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project{ 22024cd25ab654ab829ba8e9c0c634db50ed28f325aDavid Turner volatile host_reg_t saved_env_reg; 2218b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project int ret, interrupt_request; 2228b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project TranslationBlock *tb; 2238b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project uint8_t *tc_ptr; 2248b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project unsigned long next_tb; 2258b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project 2268b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project if (cpu_halted(env1) == EXCP_HALTED) 2278b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project return EXCP_HALTED; 2288b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project 2298b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project cpu_single_env = env1; 2308b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project 23124cd25ab654ab829ba8e9c0c634db50ed28f325aDavid Turner /* the access to env below is actually saving the global register's 23224cd25ab654ab829ba8e9c0c634db50ed28f325aDavid Turner value, so that files not including target-xyz/exec.h are free to 23324cd25ab654ab829ba8e9c0c634db50ed28f325aDavid Turner use it. */ 23424cd25ab654ab829ba8e9c0c634db50ed28f325aDavid Turner QEMU_BUILD_BUG_ON (sizeof (saved_env_reg) != sizeof (env)); 23524cd25ab654ab829ba8e9c0c634db50ed28f325aDavid Turner saved_env_reg = (host_reg_t) env; 23624cd25ab654ab829ba8e9c0c634db50ed28f325aDavid Turner barrier(); 2378b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project env = env1; 2388b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project 23924cd25ab654ab829ba8e9c0c634db50ed28f325aDavid Turner if (unlikely(exit_request)) { 24024cd25ab654ab829ba8e9c0c634db50ed28f325aDavid Turner env->exit_request = 1; 24124cd25ab654ab829ba8e9c0c634db50ed28f325aDavid Turner } 24224cd25ab654ab829ba8e9c0c634db50ed28f325aDavid Turner 2438b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project#if defined(TARGET_I386) 24424cd25ab654ab829ba8e9c0c634db50ed28f325aDavid Turner if (!kvm_enabled()) { 24524cd25ab654ab829ba8e9c0c634db50ed28f325aDavid Turner /* put eflags in CPU temporary format */ 24624cd25ab654ab829ba8e9c0c634db50ed28f325aDavid Turner CC_SRC = env->eflags & (CC_O | CC_S | CC_Z | CC_A | CC_P | CC_C); 24724cd25ab654ab829ba8e9c0c634db50ed28f325aDavid Turner DF = 1 - (2 * ((env->eflags >> 10) & 1)); 24824cd25ab654ab829ba8e9c0c634db50ed28f325aDavid Turner CC_OP = CC_OP_EFLAGS; 24924cd25ab654ab829ba8e9c0c634db50ed28f325aDavid Turner env->eflags &= ~(DF_MASK | CC_O | CC_S | CC_Z | CC_A | CC_P | CC_C); 25024cd25ab654ab829ba8e9c0c634db50ed28f325aDavid Turner } 2518b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project#elif defined(TARGET_SPARC) 2528b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project#elif defined(TARGET_M68K) 2538b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project env->cc_op = CC_OP_FLAGS; 2548b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project env->cc_dest = env->sr & 0xf; 2558b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project env->cc_x = (env->sr >> 4) & 1; 2568b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project#elif defined(TARGET_ALPHA) 2578b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project#elif defined(TARGET_ARM) 2588b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project#elif defined(TARGET_PPC) 2595d8f37ad78fc66901af50c762029a501561f3b23David 'Digit' Turner#elif defined(TARGET_MICROBLAZE) 2608b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project#elif defined(TARGET_MIPS) 2618b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project#elif defined(TARGET_SH4) 2628b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project#elif defined(TARGET_CRIS) 263a5d412078b8e7478d81df03710eacc7a21096ba2David 'Digit' Turner#elif defined(TARGET_S390X) 2648b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project /* XXXXX */ 2658b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project#else 2668b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project#error unsupported target CPU 2678b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project#endif 2688b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project env->exception_index = -1; 2698b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project 2708b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project /* prepare setjmp context for exception handling */ 2718b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project for(;;) { 2728b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project if (setjmp(env->jmp_env) == 0) { 2732c538c86c15d597cc875dc926e4e39285c5625dfDavid 'Digit' Turner#if defined(__sparc__) && !defined(CONFIG_SOLARIS) 2745d8f37ad78fc66901af50c762029a501561f3b23David 'Digit' Turner#undef env 2755d8f37ad78fc66901af50c762029a501561f3b23David 'Digit' Turner env = cpu_single_env; 2765d8f37ad78fc66901af50c762029a501561f3b23David 'Digit' Turner#define env cpu_single_env 2775d8f37ad78fc66901af50c762029a501561f3b23David 'Digit' Turner#endif 2788b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project /* if an exception is pending, we execute it here */ 2798b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project if (env->exception_index >= 0) { 2808b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project if (env->exception_index >= EXCP_INTERRUPT) { 2818b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project /* exit request from the cpu execution loop */ 2828b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project ret = env->exception_index; 2835d8f37ad78fc66901af50c762029a501561f3b23David 'Digit' Turner if (ret == EXCP_DEBUG) 2845d8f37ad78fc66901af50c762029a501561f3b23David 'Digit' Turner cpu_handle_debug_exception(env); 2858b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project break; 2865d8f37ad78fc66901af50c762029a501561f3b23David 'Digit' Turner } else { 2875d8f37ad78fc66901af50c762029a501561f3b23David 'Digit' Turner#if defined(CONFIG_USER_ONLY) 2888b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project /* if user mode only, we simulate a fake exception 2898b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project which will be handled outside the cpu execution 2908b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project loop */ 2918b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project#if defined(TARGET_I386) 2928b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project do_interrupt_user(env->exception_index, 2938b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project env->exception_is_int, 2948b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project env->error_code, 2958b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project env->exception_next_eip); 2968b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project /* successfully delivered */ 2978b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project env->old_exception = -1; 2988b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project#endif 2998b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project ret = env->exception_index; 3008b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project break; 3015d8f37ad78fc66901af50c762029a501561f3b23David 'Digit' Turner#else 3028b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project#if defined(TARGET_I386) 3038b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project /* simulate a real cpu exception. On i386, it can 3048b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project trigger new exceptions, but we do not handle 3058b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project double or triple faults yet. */ 3068b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project do_interrupt(env->exception_index, 3078b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project env->exception_is_int, 3088b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project env->error_code, 3098b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project env->exception_next_eip, 0); 3108b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project /* successfully delivered */ 3118b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project env->old_exception = -1; 3128b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project#elif defined(TARGET_PPC) 3138b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project do_interrupt(env); 3145d8f37ad78fc66901af50c762029a501561f3b23David 'Digit' Turner#elif defined(TARGET_MICROBLAZE) 3155d8f37ad78fc66901af50c762029a501561f3b23David 'Digit' Turner do_interrupt(env); 3168b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project#elif defined(TARGET_MIPS) 3178b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project do_interrupt(env); 3188b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project#elif defined(TARGET_SPARC) 3198b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project do_interrupt(env); 3208b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project#elif defined(TARGET_ARM) 3218b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project do_interrupt(env); 3228b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project#elif defined(TARGET_SH4) 3238b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project do_interrupt(env); 3248b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project#elif defined(TARGET_ALPHA) 3258b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project do_interrupt(env); 3268b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project#elif defined(TARGET_CRIS) 3278b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project do_interrupt(env); 3288b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project#elif defined(TARGET_M68K) 3298b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project do_interrupt(0); 3308b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project#endif 331a5d412078b8e7478d81df03710eacc7a21096ba2David 'Digit' Turner env->exception_index = -1; 3325d8f37ad78fc66901af50c762029a501561f3b23David 'Digit' Turner#endif 3338b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project } 3348b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project } 3358b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project 3365d8f37ad78fc66901af50c762029a501561f3b23David 'Digit' Turner if (kvm_enabled()) { 3375d8f37ad78fc66901af50c762029a501561f3b23David 'Digit' Turner kvm_cpu_exec(env); 3385d8f37ad78fc66901af50c762029a501561f3b23David 'Digit' Turner longjmp(env->jmp_env, 1); 3395d8f37ad78fc66901af50c762029a501561f3b23David 'Digit' Turner } 3405d8f37ad78fc66901af50c762029a501561f3b23David 'Digit' Turner 3418b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project next_tb = 0; /* force lookup of first TB */ 3428b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project for(;;) { 3438b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project interrupt_request = env->interrupt_request; 3445d8f37ad78fc66901af50c762029a501561f3b23David 'Digit' Turner if (unlikely(interrupt_request)) { 3455d8f37ad78fc66901af50c762029a501561f3b23David 'Digit' Turner if (unlikely(env->singlestep_enabled & SSTEP_NOIRQ)) { 3465d8f37ad78fc66901af50c762029a501561f3b23David 'Digit' Turner /* Mask out external interrupts for this step. */ 3475d8f37ad78fc66901af50c762029a501561f3b23David 'Digit' Turner interrupt_request &= ~(CPU_INTERRUPT_HARD | 3485d8f37ad78fc66901af50c762029a501561f3b23David 'Digit' Turner CPU_INTERRUPT_FIQ | 3495d8f37ad78fc66901af50c762029a501561f3b23David 'Digit' Turner CPU_INTERRUPT_SMI | 3505d8f37ad78fc66901af50c762029a501561f3b23David 'Digit' Turner CPU_INTERRUPT_NMI); 3515d8f37ad78fc66901af50c762029a501561f3b23David 'Digit' Turner } 3528b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project if (interrupt_request & CPU_INTERRUPT_DEBUG) { 3538b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project env->interrupt_request &= ~CPU_INTERRUPT_DEBUG; 3548b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project env->exception_index = EXCP_DEBUG; 3558b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project cpu_loop_exit(); 3568b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project } 3578b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project#if defined(TARGET_ARM) || defined(TARGET_SPARC) || defined(TARGET_MIPS) || \ 3585d8f37ad78fc66901af50c762029a501561f3b23David 'Digit' Turner defined(TARGET_PPC) || defined(TARGET_ALPHA) || defined(TARGET_CRIS) || \ 3595d8f37ad78fc66901af50c762029a501561f3b23David 'Digit' Turner defined(TARGET_MICROBLAZE) 3608b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project if (interrupt_request & CPU_INTERRUPT_HALT) { 3618b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project env->interrupt_request &= ~CPU_INTERRUPT_HALT; 3628b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project env->halted = 1; 3638b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project env->exception_index = EXCP_HLT; 3648b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project cpu_loop_exit(); 3658b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project } 3668b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project#endif 3678b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project#if defined(TARGET_I386) 368a5d412078b8e7478d81df03710eacc7a21096ba2David 'Digit' Turner if (interrupt_request & CPU_INTERRUPT_INIT) { 369a5d412078b8e7478d81df03710eacc7a21096ba2David 'Digit' Turner svm_check_intercept(SVM_EXIT_INIT); 370a5d412078b8e7478d81df03710eacc7a21096ba2David 'Digit' Turner do_cpu_init(env); 371a5d412078b8e7478d81df03710eacc7a21096ba2David 'Digit' Turner env->exception_index = EXCP_HALTED; 372a5d412078b8e7478d81df03710eacc7a21096ba2David 'Digit' Turner cpu_loop_exit(); 373a5d412078b8e7478d81df03710eacc7a21096ba2David 'Digit' Turner } else if (interrupt_request & CPU_INTERRUPT_SIPI) { 374a5d412078b8e7478d81df03710eacc7a21096ba2David 'Digit' Turner do_cpu_sipi(env); 375a5d412078b8e7478d81df03710eacc7a21096ba2David 'Digit' Turner } else if (env->hflags2 & HF2_GIF_MASK) { 3768b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project if ((interrupt_request & CPU_INTERRUPT_SMI) && 3778b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project !(env->hflags & HF_SMM_MASK)) { 3788b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project svm_check_intercept(SVM_EXIT_SMI); 3798b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project env->interrupt_request &= ~CPU_INTERRUPT_SMI; 3808b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project do_smm_enter(); 3818b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project next_tb = 0; 3828b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project } else if ((interrupt_request & CPU_INTERRUPT_NMI) && 3838b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project !(env->hflags2 & HF2_NMI_MASK)) { 3848b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project env->interrupt_request &= ~CPU_INTERRUPT_NMI; 3858b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project env->hflags2 |= HF2_NMI_MASK; 3868b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project do_interrupt(EXCP02_NMI, 0, 0, 0, 1); 3878b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project next_tb = 0; 388a5d412078b8e7478d81df03710eacc7a21096ba2David 'Digit' Turner } else if (interrupt_request & CPU_INTERRUPT_MCE) { 389a5d412078b8e7478d81df03710eacc7a21096ba2David 'Digit' Turner env->interrupt_request &= ~CPU_INTERRUPT_MCE; 390a5d412078b8e7478d81df03710eacc7a21096ba2David 'Digit' Turner do_interrupt(EXCP12_MCHK, 0, 0, 0, 0); 391a5d412078b8e7478d81df03710eacc7a21096ba2David 'Digit' Turner next_tb = 0; 3928b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project } else if ((interrupt_request & CPU_INTERRUPT_HARD) && 393f645f7d6fd841e39524e5df8c1a7fd8347f92ac1David 'Digit' Turner (((env->hflags2 & HF2_VINTR_MASK) && 3948b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project (env->hflags2 & HF2_HIF_MASK)) || 395f645f7d6fd841e39524e5df8c1a7fd8347f92ac1David 'Digit' Turner (!(env->hflags2 & HF2_VINTR_MASK) && 396f645f7d6fd841e39524e5df8c1a7fd8347f92ac1David 'Digit' Turner (env->eflags & IF_MASK && 3978b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project !(env->hflags & HF_INHIBIT_IRQ_MASK))))) { 3988b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project int intno; 3998b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project svm_check_intercept(SVM_EXIT_INTR); 4008b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project env->interrupt_request &= ~(CPU_INTERRUPT_HARD | CPU_INTERRUPT_VIRQ); 4018b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project intno = cpu_get_pic_interrupt(env); 4025d8f37ad78fc66901af50c762029a501561f3b23David 'Digit' Turner qemu_log_mask(CPU_LOG_TB_IN_ASM, "Servicing hardware INT=0x%02x\n", intno); 4032c538c86c15d597cc875dc926e4e39285c5625dfDavid 'Digit' Turner#if defined(__sparc__) && !defined(CONFIG_SOLARIS) 4045d8f37ad78fc66901af50c762029a501561f3b23David 'Digit' Turner#undef env 4055d8f37ad78fc66901af50c762029a501561f3b23David 'Digit' Turner env = cpu_single_env; 4065d8f37ad78fc66901af50c762029a501561f3b23David 'Digit' Turner#define env cpu_single_env 4075d8f37ad78fc66901af50c762029a501561f3b23David 'Digit' Turner#endif 4088b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project do_interrupt(intno, 0, 0, 0, 1); 4098b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project /* ensure that no TB jump will be modified as 4108b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project the program flow was changed */ 4118b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project next_tb = 0; 4128b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project#if !defined(CONFIG_USER_ONLY) 4138b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project } else if ((interrupt_request & CPU_INTERRUPT_VIRQ) && 414f645f7d6fd841e39524e5df8c1a7fd8347f92ac1David 'Digit' Turner (env->eflags & IF_MASK) && 4158b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project !(env->hflags & HF_INHIBIT_IRQ_MASK)) { 4168b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project int intno; 4178b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project /* FIXME: this should respect TPR */ 4188b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project svm_check_intercept(SVM_EXIT_VINTR); 4198b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project intno = ldl_phys(env->vm_vmcb + offsetof(struct vmcb, control.int_vector)); 4205d8f37ad78fc66901af50c762029a501561f3b23David 'Digit' Turner qemu_log_mask(CPU_LOG_TB_IN_ASM, "Servicing virtual hardware INT=0x%02x\n", intno); 4218b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project do_interrupt(intno, 0, 0, 0, 1); 4225d8f37ad78fc66901af50c762029a501561f3b23David 'Digit' Turner env->interrupt_request &= ~CPU_INTERRUPT_VIRQ; 4238b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project next_tb = 0; 4248b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project#endif 4258b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project } 4268b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project } 4278b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project#elif defined(TARGET_PPC) 4288b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project#if 0 4298b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project if ((interrupt_request & CPU_INTERRUPT_RESET)) { 430a5d412078b8e7478d81df03710eacc7a21096ba2David 'Digit' Turner cpu_reset(env); 4318b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project } 4328b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project#endif 4338b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project if (interrupt_request & CPU_INTERRUPT_HARD) { 4348b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project ppc_hw_interrupt(env); 4358b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project if (env->pending_interrupts == 0) 4368b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project env->interrupt_request &= ~CPU_INTERRUPT_HARD; 4378b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project next_tb = 0; 4388b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project } 4395d8f37ad78fc66901af50c762029a501561f3b23David 'Digit' Turner#elif defined(TARGET_MICROBLAZE) 4405d8f37ad78fc66901af50c762029a501561f3b23David 'Digit' Turner if ((interrupt_request & CPU_INTERRUPT_HARD) 4415d8f37ad78fc66901af50c762029a501561f3b23David 'Digit' Turner && (env->sregs[SR_MSR] & MSR_IE) 4425d8f37ad78fc66901af50c762029a501561f3b23David 'Digit' Turner && !(env->sregs[SR_MSR] & (MSR_EIP | MSR_BIP)) 4435d8f37ad78fc66901af50c762029a501561f3b23David 'Digit' Turner && !(env->iflags & (D_FLAG | IMM_FLAG))) { 4445d8f37ad78fc66901af50c762029a501561f3b23David 'Digit' Turner env->exception_index = EXCP_IRQ; 4455d8f37ad78fc66901af50c762029a501561f3b23David 'Digit' Turner do_interrupt(env); 4465d8f37ad78fc66901af50c762029a501561f3b23David 'Digit' Turner next_tb = 0; 4475d8f37ad78fc66901af50c762029a501561f3b23David 'Digit' Turner } 4488b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project#elif defined(TARGET_MIPS) 4498b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project if ((interrupt_request & CPU_INTERRUPT_HARD) && 45024cd25ab654ab829ba8e9c0c634db50ed28f325aDavid Turner cpu_mips_hw_interrupts_pending(env) && 4518b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project (env->CP0_Status & (1 << CP0St_IE)) && 4528b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project !(env->CP0_Status & (1 << CP0St_EXL)) && 4538b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project !(env->CP0_Status & (1 << CP0St_ERL)) && 4548b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project !(env->hflags & MIPS_HFLAG_DM)) { 4558b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project /* Raise it */ 4568b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project env->exception_index = EXCP_EXT_INTERRUPT; 4578b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project env->error_code = 0; 4588b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project do_interrupt(env); 4598b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project next_tb = 0; 4608b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project } 4618b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project#elif defined(TARGET_SPARC) 46224cd25ab654ab829ba8e9c0c634db50ed28f325aDavid Turner if (interrupt_request & CPU_INTERRUPT_HARD) { 46324cd25ab654ab829ba8e9c0c634db50ed28f325aDavid Turner if (cpu_interrupts_enabled(env) && 46424cd25ab654ab829ba8e9c0c634db50ed28f325aDavid Turner env->interrupt_index > 0) { 46524cd25ab654ab829ba8e9c0c634db50ed28f325aDavid Turner int pil = env->interrupt_index & 0xf; 46624cd25ab654ab829ba8e9c0c634db50ed28f325aDavid Turner int type = env->interrupt_index & 0xf0; 46724cd25ab654ab829ba8e9c0c634db50ed28f325aDavid Turner 46824cd25ab654ab829ba8e9c0c634db50ed28f325aDavid Turner if (((type == TT_EXTINT) && 46924cd25ab654ab829ba8e9c0c634db50ed28f325aDavid Turner cpu_pil_allowed(env, pil)) || 47024cd25ab654ab829ba8e9c0c634db50ed28f325aDavid Turner type != TT_EXTINT) { 47124cd25ab654ab829ba8e9c0c634db50ed28f325aDavid Turner env->exception_index = env->interrupt_index; 47224cd25ab654ab829ba8e9c0c634db50ed28f325aDavid Turner do_interrupt(env); 47324cd25ab654ab829ba8e9c0c634db50ed28f325aDavid Turner next_tb = 0; 47424cd25ab654ab829ba8e9c0c634db50ed28f325aDavid Turner } 47524cd25ab654ab829ba8e9c0c634db50ed28f325aDavid Turner } 4768b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project } else if (interrupt_request & CPU_INTERRUPT_TIMER) { 4778b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project //do_interrupt(0, 0, 0, 0, 0); 4788b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project env->interrupt_request &= ~CPU_INTERRUPT_TIMER; 4798b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project } 4808b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project#elif defined(TARGET_ARM) 4818b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project if (interrupt_request & CPU_INTERRUPT_FIQ 4828b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project && !(env->uncached_cpsr & CPSR_F)) { 4838b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project env->exception_index = EXCP_FIQ; 4848b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project do_interrupt(env); 4858b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project next_tb = 0; 4868b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project } 4878b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project /* ARMv7-M interrupt return works by loading a magic value 4888b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project into the PC. On real hardware the load causes the 4898b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project return to occur. The qemu implementation performs the 4908b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project jump normally, then does the exception return when the 4918b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project CPU tries to execute code at the magic address. 4928b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project This will cause the magic PC value to be pushed to 4938b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project the stack if an interrupt occured at the wrong time. 4948b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project We avoid this by disabling interrupts when 4958b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project pc contains a magic address. */ 4968b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project if (interrupt_request & CPU_INTERRUPT_HARD 4978b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project && ((IS_M(env) && env->regs[15] < 0xfffffff0) 4988b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project || !(env->uncached_cpsr & CPSR_I))) { 4998b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project env->exception_index = EXCP_IRQ; 5008b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project do_interrupt(env); 5018b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project next_tb = 0; 5028b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project } 5038b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project#elif defined(TARGET_SH4) 5048b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project if (interrupt_request & CPU_INTERRUPT_HARD) { 5058b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project do_interrupt(env); 5068b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project next_tb = 0; 5078b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project } 5088b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project#elif defined(TARGET_ALPHA) 5098b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project if (interrupt_request & CPU_INTERRUPT_HARD) { 5108b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project do_interrupt(env); 5118b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project next_tb = 0; 5128b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project } 5138b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project#elif defined(TARGET_CRIS) 5148b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project if (interrupt_request & CPU_INTERRUPT_HARD 51524cd25ab654ab829ba8e9c0c634db50ed28f325aDavid Turner && (env->pregs[PR_CCS] & I_FLAG) 51624cd25ab654ab829ba8e9c0c634db50ed28f325aDavid Turner && !env->locked_irq) { 5178b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project env->exception_index = EXCP_IRQ; 5188b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project do_interrupt(env); 5198b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project next_tb = 0; 5208b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project } 5218b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project if (interrupt_request & CPU_INTERRUPT_NMI 5228b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project && (env->pregs[PR_CCS] & M_FLAG)) { 5238b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project env->exception_index = EXCP_NMI; 5248b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project do_interrupt(env); 5258b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project next_tb = 0; 5268b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project } 5278b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project#elif defined(TARGET_M68K) 5288b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project if (interrupt_request & CPU_INTERRUPT_HARD 5298b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project && ((env->sr & SR_I) >> SR_I_SHIFT) 5308b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project < env->pending_level) { 5318b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project /* Real hardware gets the interrupt vector via an 5328b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project IACK cycle at this point. Current emulated 5338b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project hardware doesn't rely on this, so we 5348b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project provide/save the vector when the interrupt is 5358b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project first signalled. */ 5368b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project env->exception_index = env->pending_vector; 5378b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project do_interrupt(1); 5388b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project next_tb = 0; 5398b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project } 5408b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project#endif 5418b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project /* Don't use the cached interupt_request value, 5428b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project do_interrupt may have updated the EXITTB flag. */ 5438b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project if (env->interrupt_request & CPU_INTERRUPT_EXITTB) { 5448b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project env->interrupt_request &= ~CPU_INTERRUPT_EXITTB; 5458b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project /* ensure that no TB jump will be modified as 5468b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project the program flow was changed */ 5478b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project next_tb = 0; 5488b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project } 5495d8f37ad78fc66901af50c762029a501561f3b23David 'Digit' Turner } 5505d8f37ad78fc66901af50c762029a501561f3b23David 'Digit' Turner if (unlikely(env->exit_request)) { 5515d8f37ad78fc66901af50c762029a501561f3b23David 'Digit' Turner env->exit_request = 0; 5525d8f37ad78fc66901af50c762029a501561f3b23David 'Digit' Turner env->exception_index = EXCP_INTERRUPT; 5535d8f37ad78fc66901af50c762029a501561f3b23David 'Digit' Turner cpu_loop_exit(); 5548b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project } 55524cd25ab654ab829ba8e9c0c634db50ed28f325aDavid Turner#if defined(DEBUG_DISAS) || defined(CONFIG_DEBUG_EXEC) 5565d8f37ad78fc66901af50c762029a501561f3b23David 'Digit' Turner if (qemu_loglevel_mask(CPU_LOG_TB_CPU)) { 5578b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project /* restore flags in standard format */ 5588b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project#if defined(TARGET_I386) 5595d8f37ad78fc66901af50c762029a501561f3b23David 'Digit' Turner env->eflags = env->eflags | helper_cc_compute_all(CC_OP) | (DF & DF_MASK); 5605d8f37ad78fc66901af50c762029a501561f3b23David 'Digit' Turner log_cpu_state(env, X86_DUMP_CCOP); 5618b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project env->eflags &= ~(DF_MASK | CC_O | CC_S | CC_Z | CC_A | CC_P | CC_C); 5628b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project#elif defined(TARGET_M68K) 5638b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project cpu_m68k_flush_flags(env, env->cc_op); 5648b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project env->cc_op = CC_OP_FLAGS; 5658b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project env->sr = (env->sr & 0xffe0) 5668b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project | env->cc_dest | (env->cc_x << 4); 5675d8f37ad78fc66901af50c762029a501561f3b23David 'Digit' Turner log_cpu_state(env, 0); 5688b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project#else 56924cd25ab654ab829ba8e9c0c634db50ed28f325aDavid Turner log_cpu_state(env, 0); 5708b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project#endif 5718b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project } 57224cd25ab654ab829ba8e9c0c634db50ed28f325aDavid Turner#endif /* DEBUG_DISAS || CONFIG_DEBUG_EXEC */ 5738b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project spin_lock(&tb_lock); 5748b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project tb = tb_find_fast(); 5758b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project /* Note: we do it here to avoid a gcc bug on Mac OS X when 5768b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project doing it in tb_find_slow */ 5778b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project if (tb_invalidated_flag) { 5788b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project /* as some TB could have been invalidated because 5798b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project of memory exceptions while generating the code, we 5808b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project must recompute the hash index here */ 5818b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project next_tb = 0; 5828b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project tb_invalidated_flag = 0; 5838b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project } 58424cd25ab654ab829ba8e9c0c634db50ed28f325aDavid Turner#ifdef CONFIG_DEBUG_EXEC 5855d8f37ad78fc66901af50c762029a501561f3b23David 'Digit' Turner qemu_log_mask(CPU_LOG_EXEC, "Trace 0x%08lx [" TARGET_FMT_lx "] %s\n", 5865d8f37ad78fc66901af50c762029a501561f3b23David 'Digit' Turner (long)tb->tc_ptr, tb->pc, 5875d8f37ad78fc66901af50c762029a501561f3b23David 'Digit' Turner lookup_symbol(tb->pc)); 5888b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project#endif 5898b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project /* see if we can patch the calling TB. When the TB 5908b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project spans two pages, we cannot safely do a direct 5918b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project jump. */ 59224cd25ab654ab829ba8e9c0c634db50ed28f325aDavid Turner if (next_tb != 0 && tb->page_addr[1] == -1) { 5938b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project tb_add_jump((TranslationBlock *)(next_tb & ~3), next_tb & 3, tb); 5948b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project } 5958b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project spin_unlock(&tb_lock); 5965d8f37ad78fc66901af50c762029a501561f3b23David 'Digit' Turner 5975d8f37ad78fc66901af50c762029a501561f3b23David 'Digit' Turner /* cpu_interrupt might be called while translating the 5985d8f37ad78fc66901af50c762029a501561f3b23David 'Digit' Turner TB, but before it is linked into a potentially 5995d8f37ad78fc66901af50c762029a501561f3b23David 'Digit' Turner infinite loop and becomes env->current_tb. Avoid 6005d8f37ad78fc66901af50c762029a501561f3b23David 'Digit' Turner starting execution if there is a pending interrupt. */ 60124cd25ab654ab829ba8e9c0c634db50ed28f325aDavid Turner env->current_tb = tb; 60224cd25ab654ab829ba8e9c0c634db50ed28f325aDavid Turner barrier(); 60324cd25ab654ab829ba8e9c0c634db50ed28f325aDavid Turner if (likely(!env->exit_request)) { 6048b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project tc_ptr = tb->tc_ptr; 6058b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project /* execute the generated code */ 6062c538c86c15d597cc875dc926e4e39285c5625dfDavid 'Digit' Turner#if defined(__sparc__) && !defined(CONFIG_SOLARIS) 6078b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project#undef env 6088b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project env = cpu_single_env; 6098b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project#define env cpu_single_env 6108b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project#endif 6118b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project next_tb = tcg_qemu_tb_exec(tc_ptr); 6128b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project if ((next_tb & 3) == 2) { 6138b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project /* Instruction counter expired. */ 6148b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project int insns_left; 6158b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project tb = (TranslationBlock *)(long)(next_tb & ~3); 6168b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project /* Restore PC. */ 6175d8f37ad78fc66901af50c762029a501561f3b23David 'Digit' Turner cpu_pc_from_tb(env, tb); 6188b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project insns_left = env->icount_decr.u32; 6198b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project if (env->icount_extra && insns_left >= 0) { 6208b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project /* Refill decrementer and continue execution. */ 6218b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project env->icount_extra += insns_left; 6228b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project if (env->icount_extra > 0xffff) { 6238b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project insns_left = 0xffff; 6248b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project } else { 6258b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project insns_left = env->icount_extra; 6268b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project } 6278b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project env->icount_extra -= insns_left; 6288b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project env->icount_decr.u16.low = insns_left; 6298b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project } else { 6308b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project if (insns_left > 0) { 6318b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project /* Execute remaining instructions. */ 6328b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project cpu_exec_nocache(insns_left, tb); 6338b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project } 6348b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project env->exception_index = EXCP_INTERRUPT; 6358b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project next_tb = 0; 6368b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project cpu_loop_exit(); 6378b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project } 6388b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project } 6398b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project } 64024cd25ab654ab829ba8e9c0c634db50ed28f325aDavid Turner env->current_tb = NULL; 6418b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project /* reset soft MMU for next block (it can currently 6428b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project only be set by a memory fault) */ 6438b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project } /* for(;;) */ 6448b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project } 6458b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project } /* for(;;) */ 6468b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project 6478b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project 6488b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project#if defined(TARGET_I386) 6498b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project /* restore flags in standard format */ 6505d8f37ad78fc66901af50c762029a501561f3b23David 'Digit' Turner env->eflags = env->eflags | helper_cc_compute_all(CC_OP) | (DF & DF_MASK); 6518b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project#elif defined(TARGET_ARM) 6528b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project /* XXX: Save/restore host fpu exception state?. */ 6538b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project#elif defined(TARGET_SPARC) 6548b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project#elif defined(TARGET_PPC) 6558b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project#elif defined(TARGET_M68K) 6568b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project cpu_m68k_flush_flags(env, env->cc_op); 6578b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project env->cc_op = CC_OP_FLAGS; 6588b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project env->sr = (env->sr & 0xffe0) 6598b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project | env->cc_dest | (env->cc_x << 4); 6605d8f37ad78fc66901af50c762029a501561f3b23David 'Digit' Turner#elif defined(TARGET_MICROBLAZE) 6618b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project#elif defined(TARGET_MIPS) 6628b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project#elif defined(TARGET_SH4) 6638b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project#elif defined(TARGET_ALPHA) 6648b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project#elif defined(TARGET_CRIS) 66524cd25ab654ab829ba8e9c0c634db50ed28f325aDavid Turner#elif defined(TARGET_S390X) 6668b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project /* XXXXX */ 6678b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project#else 6688b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project#error unsupported target CPU 6698b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project#endif 6708b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project 6718b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project /* restore global registers */ 67224cd25ab654ab829ba8e9c0c634db50ed28f325aDavid Turner barrier(); 67324cd25ab654ab829ba8e9c0c634db50ed28f325aDavid Turner env = (void *) saved_env_reg; 6748b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project 6758b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project /* fail safe : never use cpu_single_env outside cpu_exec() */ 6768b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project cpu_single_env = NULL; 6778b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project return ret; 6788b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project} 6798b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project 6808b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project/* must only be called from the generated code as an exception can be 6818b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project generated */ 6828b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Projectvoid tb_invalidate_page_range(target_ulong start, target_ulong end) 6838b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project{ 6848b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project /* XXX: cannot enable it yet because it yields to MMU exception 6858b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project where NIP != read address on PowerPC */ 6868b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project#if 0 6878b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project target_ulong phys_addr; 6888b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project phys_addr = get_phys_addr_code(env, start); 6898b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project tb_invalidate_phys_page_range(phys_addr, phys_addr + end - start, 0); 6908b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project#endif 6918b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project} 6928b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project 6938b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project#if defined(TARGET_I386) && defined(CONFIG_USER_ONLY) 6948b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project 6958b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Projectvoid cpu_x86_load_seg(CPUX86State *s, int seg_reg, int selector) 6968b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project{ 6978b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project CPUX86State *saved_env; 6988b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project 6998b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project saved_env = env; 7008b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project env = s; 7018b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project if (!(env->cr[0] & CR0_PE_MASK) || (env->eflags & VM_MASK)) { 7028b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project selector &= 0xffff; 7038b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project cpu_x86_load_seg_cache(env, seg_reg, selector, 7048b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project (selector << 4), 0xffff, 0); 7058b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project } else { 7068b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project helper_load_seg(seg_reg, selector); 7078b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project } 7088b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project env = saved_env; 7098b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project} 7108b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project 7118b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Projectvoid cpu_x86_fsave(CPUX86State *s, target_ulong ptr, int data32) 7128b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project{ 7138b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project CPUX86State *saved_env; 7148b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project 7158b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project saved_env = env; 7168b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project env = s; 7178b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project 7188b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project helper_fsave(ptr, data32); 7198b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project 7208b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project env = saved_env; 7218b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project} 7228b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project 7238b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Projectvoid cpu_x86_frstor(CPUX86State *s, target_ulong ptr, int data32) 7248b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project{ 7258b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project CPUX86State *saved_env; 7268b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project 7278b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project saved_env = env; 7288b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project env = s; 7298b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project 7308b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project helper_frstor(ptr, data32); 7318b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project 7328b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project env = saved_env; 7338b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project} 7348b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project 7358b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project#endif /* TARGET_I386 */ 7368b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project 7378b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project#if !defined(CONFIG_SOFTMMU) 7388b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project 7398b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project#if defined(TARGET_I386) 74024cd25ab654ab829ba8e9c0c634db50ed28f325aDavid Turner#define EXCEPTION_ACTION raise_exception_err(env->exception_index, env->error_code) 74124cd25ab654ab829ba8e9c0c634db50ed28f325aDavid Turner#else 74224cd25ab654ab829ba8e9c0c634db50ed28f325aDavid Turner#define EXCEPTION_ACTION cpu_loop_exit() 74324cd25ab654ab829ba8e9c0c634db50ed28f325aDavid Turner#endif 7448b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project 7458b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project/* 'pc' is the host PC at which the exception was raised. 'address' is 7468b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project the effective address of the memory exception. 'is_write' is 1 if a 7478b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project write caused the exception and otherwise 0'. 'old_set' is the 7488b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project signal set which should be restored */ 7498b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Projectstatic inline int handle_cpu_signal(unsigned long pc, unsigned long address, 7508b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project int is_write, sigset_t *old_set, 7518b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project void *puc) 7528b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project{ 7538b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project TranslationBlock *tb; 7548b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project int ret; 7558b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project 7568b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project if (cpu_single_env) 7578b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project env = cpu_single_env; /* XXX: find a correct solution for multithread */ 7588b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project#if defined(DEBUG_SIGNAL) 7598b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project qemu_printf("qemu: SIGSEGV pc=0x%08lx address=%08lx w=%d oldset=0x%08lx\n", 7608b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project pc, address, is_write, *(unsigned long *)old_set); 7618b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project#endif 7628b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project /* XXX: locking issue */ 7638b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project if (is_write && page_unprotect(h2g(address), pc, puc)) { 7648b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project return 1; 7658b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project } 7668b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project 7678b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project /* see if it is an MMU fault */ 76824cd25ab654ab829ba8e9c0c634db50ed28f325aDavid Turner ret = cpu_handle_mmu_fault(env, address, is_write, MMU_USER_IDX, 0); 7698b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project if (ret < 0) 7708b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project return 0; /* not an MMU fault */ 7718b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project if (ret == 0) 7728b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project return 1; /* the MMU fault was handled without causing real CPU fault */ 7738b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project /* now we have a real cpu fault */ 7748b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project tb = tb_find_pc(pc); 7758b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project if (tb) { 7768b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project /* the PC is inside the translated code. It means that we have 7778b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project a virtual CPU fault */ 778f645f7d6fd841e39524e5df8c1a7fd8347f92ac1David 'Digit' Turner cpu_restore_state(tb, env, pc); 7798b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project } 7808b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project 7818b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project /* we restore the process signal mask as the sigreturn should 7828b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project do it (XXX: use sigsetjmp) */ 7838b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project sigprocmask(SIG_SETMASK, old_set, NULL); 78424cd25ab654ab829ba8e9c0c634db50ed28f325aDavid Turner EXCEPTION_ACTION; 7858b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project 7868b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project /* never comes here */ 7878b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project return 1; 7888b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project} 7898b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project 7908b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project#if defined(__i386__) 7918b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project 7928b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project#if defined(__APPLE__) 7938b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project# include <sys/ucontext.h> 7948b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project 7958b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project# define EIP_sig(context) (*((unsigned long*)&(context)->uc_mcontext->ss.eip)) 7968b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project# define TRAP_sig(context) ((context)->uc_mcontext->es.trapno) 7978b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project# define ERROR_sig(context) ((context)->uc_mcontext->es.err) 7985d8f37ad78fc66901af50c762029a501561f3b23David 'Digit' Turner# define MASK_sig(context) ((context)->uc_sigmask) 79924cd25ab654ab829ba8e9c0c634db50ed28f325aDavid Turner#elif defined (__NetBSD__) 80024cd25ab654ab829ba8e9c0c634db50ed28f325aDavid Turner# include <ucontext.h> 80124cd25ab654ab829ba8e9c0c634db50ed28f325aDavid Turner 80224cd25ab654ab829ba8e9c0c634db50ed28f325aDavid Turner# define EIP_sig(context) ((context)->uc_mcontext.__gregs[_REG_EIP]) 80324cd25ab654ab829ba8e9c0c634db50ed28f325aDavid Turner# define TRAP_sig(context) ((context)->uc_mcontext.__gregs[_REG_TRAPNO]) 80424cd25ab654ab829ba8e9c0c634db50ed28f325aDavid Turner# define ERROR_sig(context) ((context)->uc_mcontext.__gregs[_REG_ERR]) 80524cd25ab654ab829ba8e9c0c634db50ed28f325aDavid Turner# define MASK_sig(context) ((context)->uc_sigmask) 80624cd25ab654ab829ba8e9c0c634db50ed28f325aDavid Turner#elif defined (__FreeBSD__) || defined(__DragonFly__) 80724cd25ab654ab829ba8e9c0c634db50ed28f325aDavid Turner# include <ucontext.h> 80824cd25ab654ab829ba8e9c0c634db50ed28f325aDavid Turner 80924cd25ab654ab829ba8e9c0c634db50ed28f325aDavid Turner# define EIP_sig(context) (*((unsigned long*)&(context)->uc_mcontext.mc_eip)) 81024cd25ab654ab829ba8e9c0c634db50ed28f325aDavid Turner# define TRAP_sig(context) ((context)->uc_mcontext.mc_trapno) 81124cd25ab654ab829ba8e9c0c634db50ed28f325aDavid Turner# define ERROR_sig(context) ((context)->uc_mcontext.mc_err) 81224cd25ab654ab829ba8e9c0c634db50ed28f325aDavid Turner# define MASK_sig(context) ((context)->uc_sigmask) 8135d8f37ad78fc66901af50c762029a501561f3b23David 'Digit' Turner#elif defined(__OpenBSD__) 8145d8f37ad78fc66901af50c762029a501561f3b23David 'Digit' Turner# define EIP_sig(context) ((context)->sc_eip) 8155d8f37ad78fc66901af50c762029a501561f3b23David 'Digit' Turner# define TRAP_sig(context) ((context)->sc_trapno) 8165d8f37ad78fc66901af50c762029a501561f3b23David 'Digit' Turner# define ERROR_sig(context) ((context)->sc_err) 8175d8f37ad78fc66901af50c762029a501561f3b23David 'Digit' Turner# define MASK_sig(context) ((context)->sc_mask) 8188b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project#else 8198b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project# define EIP_sig(context) ((context)->uc_mcontext.gregs[REG_EIP]) 8208b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project# define TRAP_sig(context) ((context)->uc_mcontext.gregs[REG_TRAPNO]) 8218b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project# define ERROR_sig(context) ((context)->uc_mcontext.gregs[REG_ERR]) 8225d8f37ad78fc66901af50c762029a501561f3b23David 'Digit' Turner# define MASK_sig(context) ((context)->uc_sigmask) 8238b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project#endif 8248b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project 8258b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Projectint cpu_signal_handler(int host_signum, void *pinfo, 8268b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project void *puc) 8278b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project{ 8288b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project siginfo_t *info = pinfo; 82924cd25ab654ab829ba8e9c0c634db50ed28f325aDavid Turner#if defined(__NetBSD__) || defined (__FreeBSD__) || defined(__DragonFly__) 83024cd25ab654ab829ba8e9c0c634db50ed28f325aDavid Turner ucontext_t *uc = puc; 83124cd25ab654ab829ba8e9c0c634db50ed28f325aDavid Turner#elif defined(__OpenBSD__) 8325d8f37ad78fc66901af50c762029a501561f3b23David 'Digit' Turner struct sigcontext *uc = puc; 8335d8f37ad78fc66901af50c762029a501561f3b23David 'Digit' Turner#else 8348b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project struct ucontext *uc = puc; 8355d8f37ad78fc66901af50c762029a501561f3b23David 'Digit' Turner#endif 8368b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project unsigned long pc; 8378b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project int trapno; 8388b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project 8398b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project#ifndef REG_EIP 8408b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project/* for glibc 2.1 */ 8418b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project#define REG_EIP EIP 8428b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project#define REG_ERR ERR 8438b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project#define REG_TRAPNO TRAPNO 8448b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project#endif 8458b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project pc = EIP_sig(uc); 8468b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project trapno = TRAP_sig(uc); 8478b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project return handle_cpu_signal(pc, (unsigned long)info->si_addr, 8488b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project trapno == 0xe ? 8498b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project (ERROR_sig(uc) >> 1) & 1 : 0, 8505d8f37ad78fc66901af50c762029a501561f3b23David 'Digit' Turner &MASK_sig(uc), puc); 8518b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project} 8528b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project 8538b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project#elif defined(__x86_64__) 8548b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project 8555d8f37ad78fc66901af50c762029a501561f3b23David 'Digit' Turner#ifdef __NetBSD__ 8565d8f37ad78fc66901af50c762029a501561f3b23David 'Digit' Turner#define PC_sig(context) _UC_MACHINE_PC(context) 8575d8f37ad78fc66901af50c762029a501561f3b23David 'Digit' Turner#define TRAP_sig(context) ((context)->uc_mcontext.__gregs[_REG_TRAPNO]) 8585d8f37ad78fc66901af50c762029a501561f3b23David 'Digit' Turner#define ERROR_sig(context) ((context)->uc_mcontext.__gregs[_REG_ERR]) 8595d8f37ad78fc66901af50c762029a501561f3b23David 'Digit' Turner#define MASK_sig(context) ((context)->uc_sigmask) 8605d8f37ad78fc66901af50c762029a501561f3b23David 'Digit' Turner#elif defined(__OpenBSD__) 8615d8f37ad78fc66901af50c762029a501561f3b23David 'Digit' Turner#define PC_sig(context) ((context)->sc_rip) 8625d8f37ad78fc66901af50c762029a501561f3b23David 'Digit' Turner#define TRAP_sig(context) ((context)->sc_trapno) 8635d8f37ad78fc66901af50c762029a501561f3b23David 'Digit' Turner#define ERROR_sig(context) ((context)->sc_err) 8645d8f37ad78fc66901af50c762029a501561f3b23David 'Digit' Turner#define MASK_sig(context) ((context)->sc_mask) 86524cd25ab654ab829ba8e9c0c634db50ed28f325aDavid Turner#elif defined (__FreeBSD__) || defined(__DragonFly__) 86624cd25ab654ab829ba8e9c0c634db50ed28f325aDavid Turner#include <ucontext.h> 86724cd25ab654ab829ba8e9c0c634db50ed28f325aDavid Turner 86824cd25ab654ab829ba8e9c0c634db50ed28f325aDavid Turner#define PC_sig(context) (*((unsigned long*)&(context)->uc_mcontext.mc_rip)) 86924cd25ab654ab829ba8e9c0c634db50ed28f325aDavid Turner#define TRAP_sig(context) ((context)->uc_mcontext.mc_trapno) 87024cd25ab654ab829ba8e9c0c634db50ed28f325aDavid Turner#define ERROR_sig(context) ((context)->uc_mcontext.mc_err) 87124cd25ab654ab829ba8e9c0c634db50ed28f325aDavid Turner#define MASK_sig(context) ((context)->uc_sigmask) 8725d8f37ad78fc66901af50c762029a501561f3b23David 'Digit' Turner#else 8735d8f37ad78fc66901af50c762029a501561f3b23David 'Digit' Turner#define PC_sig(context) ((context)->uc_mcontext.gregs[REG_RIP]) 8745d8f37ad78fc66901af50c762029a501561f3b23David 'Digit' Turner#define TRAP_sig(context) ((context)->uc_mcontext.gregs[REG_TRAPNO]) 8755d8f37ad78fc66901af50c762029a501561f3b23David 'Digit' Turner#define ERROR_sig(context) ((context)->uc_mcontext.gregs[REG_ERR]) 8765d8f37ad78fc66901af50c762029a501561f3b23David 'Digit' Turner#define MASK_sig(context) ((context)->uc_sigmask) 8775d8f37ad78fc66901af50c762029a501561f3b23David 'Digit' Turner#endif 8785d8f37ad78fc66901af50c762029a501561f3b23David 'Digit' Turner 8798b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Projectint cpu_signal_handler(int host_signum, void *pinfo, 8808b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project void *puc) 8818b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project{ 8828b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project siginfo_t *info = pinfo; 8838b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project unsigned long pc; 88424cd25ab654ab829ba8e9c0c634db50ed28f325aDavid Turner#if defined(__NetBSD__) || defined (__FreeBSD__) || defined(__DragonFly__) 8855d8f37ad78fc66901af50c762029a501561f3b23David 'Digit' Turner ucontext_t *uc = puc; 8865d8f37ad78fc66901af50c762029a501561f3b23David 'Digit' Turner#elif defined(__OpenBSD__) 8875d8f37ad78fc66901af50c762029a501561f3b23David 'Digit' Turner struct sigcontext *uc = puc; 8885d8f37ad78fc66901af50c762029a501561f3b23David 'Digit' Turner#else 8895d8f37ad78fc66901af50c762029a501561f3b23David 'Digit' Turner struct ucontext *uc = puc; 8905d8f37ad78fc66901af50c762029a501561f3b23David 'Digit' Turner#endif 8918b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project 8925d8f37ad78fc66901af50c762029a501561f3b23David 'Digit' Turner pc = PC_sig(uc); 8938b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project return handle_cpu_signal(pc, (unsigned long)info->si_addr, 8945d8f37ad78fc66901af50c762029a501561f3b23David 'Digit' Turner TRAP_sig(uc) == 0xe ? 8955d8f37ad78fc66901af50c762029a501561f3b23David 'Digit' Turner (ERROR_sig(uc) >> 1) & 1 : 0, 8965d8f37ad78fc66901af50c762029a501561f3b23David 'Digit' Turner &MASK_sig(uc), puc); 8978b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project} 8988b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project 8995d8f37ad78fc66901af50c762029a501561f3b23David 'Digit' Turner#elif defined(_ARCH_PPC) 9008b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project 9018b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project/*********************************************************************** 9028b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project * signal context platform-specific definitions 9038b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project * From Wine 9048b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project */ 9058b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project#ifdef linux 9068b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project/* All Registers access - only for local access */ 9078b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project# define REG_sig(reg_name, context) ((context)->uc_mcontext.regs->reg_name) 9088b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project/* Gpr Registers access */ 9098b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project# define GPR_sig(reg_num, context) REG_sig(gpr[reg_num], context) 9108b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project# define IAR_sig(context) REG_sig(nip, context) /* Program counter */ 9118b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project# define MSR_sig(context) REG_sig(msr, context) /* Machine State Register (Supervisor) */ 9128b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project# define CTR_sig(context) REG_sig(ctr, context) /* Count register */ 9138b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project# define XER_sig(context) REG_sig(xer, context) /* User's integer exception register */ 9148b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project# define LR_sig(context) REG_sig(link, context) /* Link register */ 9158b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project# define CR_sig(context) REG_sig(ccr, context) /* Condition register */ 9168b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project/* Float Registers access */ 9178b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project# define FLOAT_sig(reg_num, context) (((double*)((char*)((context)->uc_mcontext.regs+48*4)))[reg_num]) 9188b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project# define FPSCR_sig(context) (*(int*)((char*)((context)->uc_mcontext.regs+(48+32*2)*4))) 9198b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project/* Exception Registers access */ 9208b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project# define DAR_sig(context) REG_sig(dar, context) 9218b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project# define DSISR_sig(context) REG_sig(dsisr, context) 9228b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project# define TRAP_sig(context) REG_sig(trap, context) 9238b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project#endif /* linux */ 9248b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project 92524cd25ab654ab829ba8e9c0c634db50ed28f325aDavid Turner#if defined(__FreeBSD__) || defined(__FreeBSD_kernel__) 92624cd25ab654ab829ba8e9c0c634db50ed28f325aDavid Turner#include <ucontext.h> 92724cd25ab654ab829ba8e9c0c634db50ed28f325aDavid Turner# define IAR_sig(context) ((context)->uc_mcontext.mc_srr0) 92824cd25ab654ab829ba8e9c0c634db50ed28f325aDavid Turner# define MSR_sig(context) ((context)->uc_mcontext.mc_srr1) 92924cd25ab654ab829ba8e9c0c634db50ed28f325aDavid Turner# define CTR_sig(context) ((context)->uc_mcontext.mc_ctr) 93024cd25ab654ab829ba8e9c0c634db50ed28f325aDavid Turner# define XER_sig(context) ((context)->uc_mcontext.mc_xer) 93124cd25ab654ab829ba8e9c0c634db50ed28f325aDavid Turner# define LR_sig(context) ((context)->uc_mcontext.mc_lr) 93224cd25ab654ab829ba8e9c0c634db50ed28f325aDavid Turner# define CR_sig(context) ((context)->uc_mcontext.mc_cr) 93324cd25ab654ab829ba8e9c0c634db50ed28f325aDavid Turner/* Exception Registers access */ 93424cd25ab654ab829ba8e9c0c634db50ed28f325aDavid Turner# define DAR_sig(context) ((context)->uc_mcontext.mc_dar) 93524cd25ab654ab829ba8e9c0c634db50ed28f325aDavid Turner# define DSISR_sig(context) ((context)->uc_mcontext.mc_dsisr) 93624cd25ab654ab829ba8e9c0c634db50ed28f325aDavid Turner# define TRAP_sig(context) ((context)->uc_mcontext.mc_exc) 93724cd25ab654ab829ba8e9c0c634db50ed28f325aDavid Turner#endif /* __FreeBSD__|| __FreeBSD_kernel__ */ 93824cd25ab654ab829ba8e9c0c634db50ed28f325aDavid Turner 9398b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project#ifdef __APPLE__ 9408b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project# include <sys/ucontext.h> 9418b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Projecttypedef struct ucontext SIGCONTEXT; 9428b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project/* All Registers access - only for local access */ 9438b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project# define REG_sig(reg_name, context) ((context)->uc_mcontext->ss.reg_name) 9448b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project# define FLOATREG_sig(reg_name, context) ((context)->uc_mcontext->fs.reg_name) 9458b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project# define EXCEPREG_sig(reg_name, context) ((context)->uc_mcontext->es.reg_name) 9468b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project# define VECREG_sig(reg_name, context) ((context)->uc_mcontext->vs.reg_name) 9478b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project/* Gpr Registers access */ 9488b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project# define GPR_sig(reg_num, context) REG_sig(r##reg_num, context) 9498b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project# define IAR_sig(context) REG_sig(srr0, context) /* Program counter */ 9508b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project# define MSR_sig(context) REG_sig(srr1, context) /* Machine State Register (Supervisor) */ 9518b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project# define CTR_sig(context) REG_sig(ctr, context) 9528b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project# define XER_sig(context) REG_sig(xer, context) /* Link register */ 9538b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project# define LR_sig(context) REG_sig(lr, context) /* User's integer exception register */ 9548b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project# define CR_sig(context) REG_sig(cr, context) /* Condition register */ 9558b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project/* Float Registers access */ 9568b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project# define FLOAT_sig(reg_num, context) FLOATREG_sig(fpregs[reg_num], context) 9578b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project# define FPSCR_sig(context) ((double)FLOATREG_sig(fpscr, context)) 9588b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project/* Exception Registers access */ 9598b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project# define DAR_sig(context) EXCEPREG_sig(dar, context) /* Fault registers for coredump */ 9608b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project# define DSISR_sig(context) EXCEPREG_sig(dsisr, context) 9618b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project# define TRAP_sig(context) EXCEPREG_sig(exception, context) /* number of powerpc exception taken */ 9628b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project#endif /* __APPLE__ */ 9638b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project 9648b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Projectint cpu_signal_handler(int host_signum, void *pinfo, 9658b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project void *puc) 9668b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project{ 9678b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project siginfo_t *info = pinfo; 96824cd25ab654ab829ba8e9c0c634db50ed28f325aDavid Turner#if defined(__FreeBSD__) || defined(__FreeBSD_kernel__) 96924cd25ab654ab829ba8e9c0c634db50ed28f325aDavid Turner ucontext_t *uc = puc; 97024cd25ab654ab829ba8e9c0c634db50ed28f325aDavid Turner#else 9718b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project struct ucontext *uc = puc; 97224cd25ab654ab829ba8e9c0c634db50ed28f325aDavid Turner#endif 9738b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project unsigned long pc; 9748b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project int is_write; 9758b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project 9768b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project pc = IAR_sig(uc); 9778b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project is_write = 0; 9788b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project#if 0 9798b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project /* ppc 4xx case */ 9808b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project if (DSISR_sig(uc) & 0x00800000) 9818b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project is_write = 1; 9828b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project#else 9838b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project if (TRAP_sig(uc) != 0x400 && (DSISR_sig(uc) & 0x02000000)) 9848b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project is_write = 1; 9858b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project#endif 9868b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project return handle_cpu_signal(pc, (unsigned long)info->si_addr, 9878b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project is_write, &uc->uc_sigmask, puc); 9888b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project} 9898b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project 9908b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project#elif defined(__alpha__) 9918b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project 9928b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Projectint cpu_signal_handler(int host_signum, void *pinfo, 9938b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project void *puc) 9948b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project{ 9958b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project siginfo_t *info = pinfo; 9968b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project struct ucontext *uc = puc; 9978b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project uint32_t *pc = uc->uc_mcontext.sc_pc; 9988b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project uint32_t insn = *pc; 9998b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project int is_write = 0; 10008b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project 10018b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project /* XXX: need kernel patch to get write flag faster */ 10028b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project switch (insn >> 26) { 10038b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project case 0x0d: // stw 10048b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project case 0x0e: // stb 10058b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project case 0x0f: // stq_u 10068b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project case 0x24: // stf 10078b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project case 0x25: // stg 10088b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project case 0x26: // sts 10098b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project case 0x27: // stt 10108b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project case 0x2c: // stl 10118b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project case 0x2d: // stq 10128b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project case 0x2e: // stl_c 10138b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project case 0x2f: // stq_c 10148b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project is_write = 1; 10158b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project } 10168b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project 10178b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project return handle_cpu_signal(pc, (unsigned long)info->si_addr, 10188b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project is_write, &uc->uc_sigmask, puc); 10198b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project} 10208b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project#elif defined(__sparc__) 10218b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project 10228b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Projectint cpu_signal_handler(int host_signum, void *pinfo, 10238b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project void *puc) 10248b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project{ 10258b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project siginfo_t *info = pinfo; 10268b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project int is_write; 10278b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project uint32_t insn; 10282c538c86c15d597cc875dc926e4e39285c5625dfDavid 'Digit' Turner#if !defined(__arch64__) || defined(CONFIG_SOLARIS) 10298b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project uint32_t *regs = (uint32_t *)(info + 1); 10308b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project void *sigmask = (regs + 20); 10318b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project /* XXX: is there a standard glibc define ? */ 10328b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project unsigned long pc = regs[1]; 10338b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project#else 10345d8f37ad78fc66901af50c762029a501561f3b23David 'Digit' Turner#ifdef __linux__ 10358b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project struct sigcontext *sc = puc; 10368b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project unsigned long pc = sc->sigc_regs.tpc; 10378b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project void *sigmask = (void *)sc->sigc_mask; 10385d8f37ad78fc66901af50c762029a501561f3b23David 'Digit' Turner#elif defined(__OpenBSD__) 10395d8f37ad78fc66901af50c762029a501561f3b23David 'Digit' Turner struct sigcontext *uc = puc; 10405d8f37ad78fc66901af50c762029a501561f3b23David 'Digit' Turner unsigned long pc = uc->sc_pc; 10415d8f37ad78fc66901af50c762029a501561f3b23David 'Digit' Turner void *sigmask = (void *)(long)uc->sc_mask; 10425d8f37ad78fc66901af50c762029a501561f3b23David 'Digit' Turner#endif 10438b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project#endif 10448b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project 10458b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project /* XXX: need kernel patch to get write flag faster */ 10468b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project is_write = 0; 10478b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project insn = *(uint32_t *)pc; 10488b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project if ((insn >> 30) == 3) { 10498b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project switch((insn >> 19) & 0x3f) { 10508b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project case 0x05: // stb 10515d8f37ad78fc66901af50c762029a501561f3b23David 'Digit' Turner case 0x15: // stba 10528b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project case 0x06: // sth 10535d8f37ad78fc66901af50c762029a501561f3b23David 'Digit' Turner case 0x16: // stha 10548b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project case 0x04: // st 10555d8f37ad78fc66901af50c762029a501561f3b23David 'Digit' Turner case 0x14: // sta 10568b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project case 0x07: // std 10575d8f37ad78fc66901af50c762029a501561f3b23David 'Digit' Turner case 0x17: // stda 10585d8f37ad78fc66901af50c762029a501561f3b23David 'Digit' Turner case 0x0e: // stx 10595d8f37ad78fc66901af50c762029a501561f3b23David 'Digit' Turner case 0x1e: // stxa 10608b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project case 0x24: // stf 10615d8f37ad78fc66901af50c762029a501561f3b23David 'Digit' Turner case 0x34: // stfa 10628b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project case 0x27: // stdf 10635d8f37ad78fc66901af50c762029a501561f3b23David 'Digit' Turner case 0x37: // stdfa 10645d8f37ad78fc66901af50c762029a501561f3b23David 'Digit' Turner case 0x26: // stqf 10655d8f37ad78fc66901af50c762029a501561f3b23David 'Digit' Turner case 0x36: // stqfa 10668b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project case 0x25: // stfsr 10675d8f37ad78fc66901af50c762029a501561f3b23David 'Digit' Turner case 0x3c: // casa 10685d8f37ad78fc66901af50c762029a501561f3b23David 'Digit' Turner case 0x3e: // casxa 10698b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project is_write = 1; 10708b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project break; 10718b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project } 10728b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project } 10738b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project return handle_cpu_signal(pc, (unsigned long)info->si_addr, 10748b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project is_write, sigmask, NULL); 10758b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project} 10768b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project 10778b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project#elif defined(__arm__) 10788b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project 10798b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Projectint cpu_signal_handler(int host_signum, void *pinfo, 10808b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project void *puc) 10818b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project{ 10828b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project siginfo_t *info = pinfo; 10838b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project struct ucontext *uc = puc; 10848b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project unsigned long pc; 10858b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project int is_write; 10868b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project 10878b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project#if (__GLIBC__ < 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ <= 3)) 10888b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project pc = uc->uc_mcontext.gregs[R15]; 10898b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project#else 10908b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project pc = uc->uc_mcontext.arm_pc; 10918b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project#endif 10928b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project /* XXX: compute is_write */ 10938b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project is_write = 0; 10948b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project return handle_cpu_signal(pc, (unsigned long)info->si_addr, 10958b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project is_write, 10968b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project &uc->uc_sigmask, puc); 10978b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project} 10988b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project 10998b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project#elif defined(__mc68000) 11008b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project 11018b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Projectint cpu_signal_handler(int host_signum, void *pinfo, 11028b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project void *puc) 11038b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project{ 11048b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project siginfo_t *info = pinfo; 11058b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project struct ucontext *uc = puc; 11068b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project unsigned long pc; 11078b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project int is_write; 11088b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project 11098b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project pc = uc->uc_mcontext.gregs[16]; 11108b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project /* XXX: compute is_write */ 11118b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project is_write = 0; 11128b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project return handle_cpu_signal(pc, (unsigned long)info->si_addr, 11138b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project is_write, 11148b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project &uc->uc_sigmask, puc); 11158b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project} 11168b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project 11178b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project#elif defined(__ia64) 11188b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project 11198b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project#ifndef __ISR_VALID 11208b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project /* This ought to be in <bits/siginfo.h>... */ 11218b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project# define __ISR_VALID 1 11228b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project#endif 11238b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project 11248b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Projectint cpu_signal_handler(int host_signum, void *pinfo, void *puc) 11258b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project{ 11268b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project siginfo_t *info = pinfo; 11278b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project struct ucontext *uc = puc; 11288b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project unsigned long ip; 11298b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project int is_write = 0; 11308b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project 11318b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project ip = uc->uc_mcontext.sc_ip; 11328b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project switch (host_signum) { 11338b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project case SIGILL: 11348b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project case SIGFPE: 11358b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project case SIGSEGV: 11368b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project case SIGBUS: 11378b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project case SIGTRAP: 11388b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project if (info->si_code && (info->si_segvflags & __ISR_VALID)) 11398b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project /* ISR.W (write-access) is bit 33: */ 11408b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project is_write = (info->si_isr >> 33) & 1; 11418b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project break; 11428b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project 11438b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project default: 11448b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project break; 11458b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project } 11468b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project return handle_cpu_signal(ip, (unsigned long)info->si_addr, 11478b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project is_write, 114824cd25ab654ab829ba8e9c0c634db50ed28f325aDavid Turner (sigset_t *)&uc->uc_sigmask, puc); 11498b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project} 11508b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project 11518b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project#elif defined(__s390__) 11528b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project 11538b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Projectint cpu_signal_handler(int host_signum, void *pinfo, 11548b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project void *puc) 11558b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project{ 11568b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project siginfo_t *info = pinfo; 11578b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project struct ucontext *uc = puc; 11588b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project unsigned long pc; 115924cd25ab654ab829ba8e9c0c634db50ed28f325aDavid Turner uint16_t *pinsn; 116024cd25ab654ab829ba8e9c0c634db50ed28f325aDavid Turner int is_write = 0; 11618b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project 11628b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project pc = uc->uc_mcontext.psw.addr; 116324cd25ab654ab829ba8e9c0c634db50ed28f325aDavid Turner 116424cd25ab654ab829ba8e9c0c634db50ed28f325aDavid Turner /* ??? On linux, the non-rt signal handler has 4 (!) arguments instead 116524cd25ab654ab829ba8e9c0c634db50ed28f325aDavid Turner of the normal 2 arguments. The 3rd argument contains the "int_code" 116624cd25ab654ab829ba8e9c0c634db50ed28f325aDavid Turner from the hardware which does in fact contain the is_write value. 116724cd25ab654ab829ba8e9c0c634db50ed28f325aDavid Turner The rt signal handler, as far as I can tell, does not give this value 116824cd25ab654ab829ba8e9c0c634db50ed28f325aDavid Turner at all. Not that we could get to it from here even if it were. */ 116924cd25ab654ab829ba8e9c0c634db50ed28f325aDavid Turner /* ??? This is not even close to complete, since it ignores all 117024cd25ab654ab829ba8e9c0c634db50ed28f325aDavid Turner of the read-modify-write instructions. */ 117124cd25ab654ab829ba8e9c0c634db50ed28f325aDavid Turner pinsn = (uint16_t *)pc; 117224cd25ab654ab829ba8e9c0c634db50ed28f325aDavid Turner switch (pinsn[0] >> 8) { 117324cd25ab654ab829ba8e9c0c634db50ed28f325aDavid Turner case 0x50: /* ST */ 117424cd25ab654ab829ba8e9c0c634db50ed28f325aDavid Turner case 0x42: /* STC */ 117524cd25ab654ab829ba8e9c0c634db50ed28f325aDavid Turner case 0x40: /* STH */ 117624cd25ab654ab829ba8e9c0c634db50ed28f325aDavid Turner is_write = 1; 117724cd25ab654ab829ba8e9c0c634db50ed28f325aDavid Turner break; 117824cd25ab654ab829ba8e9c0c634db50ed28f325aDavid Turner case 0xc4: /* RIL format insns */ 117924cd25ab654ab829ba8e9c0c634db50ed28f325aDavid Turner switch (pinsn[0] & 0xf) { 118024cd25ab654ab829ba8e9c0c634db50ed28f325aDavid Turner case 0xf: /* STRL */ 118124cd25ab654ab829ba8e9c0c634db50ed28f325aDavid Turner case 0xb: /* STGRL */ 118224cd25ab654ab829ba8e9c0c634db50ed28f325aDavid Turner case 0x7: /* STHRL */ 118324cd25ab654ab829ba8e9c0c634db50ed28f325aDavid Turner is_write = 1; 118424cd25ab654ab829ba8e9c0c634db50ed28f325aDavid Turner } 118524cd25ab654ab829ba8e9c0c634db50ed28f325aDavid Turner break; 118624cd25ab654ab829ba8e9c0c634db50ed28f325aDavid Turner case 0xe3: /* RXY format insns */ 118724cd25ab654ab829ba8e9c0c634db50ed28f325aDavid Turner switch (pinsn[2] & 0xff) { 118824cd25ab654ab829ba8e9c0c634db50ed28f325aDavid Turner case 0x50: /* STY */ 118924cd25ab654ab829ba8e9c0c634db50ed28f325aDavid Turner case 0x24: /* STG */ 119024cd25ab654ab829ba8e9c0c634db50ed28f325aDavid Turner case 0x72: /* STCY */ 119124cd25ab654ab829ba8e9c0c634db50ed28f325aDavid Turner case 0x70: /* STHY */ 119224cd25ab654ab829ba8e9c0c634db50ed28f325aDavid Turner case 0x8e: /* STPQ */ 119324cd25ab654ab829ba8e9c0c634db50ed28f325aDavid Turner case 0x3f: /* STRVH */ 119424cd25ab654ab829ba8e9c0c634db50ed28f325aDavid Turner case 0x3e: /* STRV */ 119524cd25ab654ab829ba8e9c0c634db50ed28f325aDavid Turner case 0x2f: /* STRVG */ 119624cd25ab654ab829ba8e9c0c634db50ed28f325aDavid Turner is_write = 1; 119724cd25ab654ab829ba8e9c0c634db50ed28f325aDavid Turner } 119824cd25ab654ab829ba8e9c0c634db50ed28f325aDavid Turner break; 119924cd25ab654ab829ba8e9c0c634db50ed28f325aDavid Turner } 12008b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project return handle_cpu_signal(pc, (unsigned long)info->si_addr, 12018b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project is_write, &uc->uc_sigmask, puc); 12028b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project} 12038b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project 12048b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project#elif defined(__mips__) 12058b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project 12068b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Projectint cpu_signal_handler(int host_signum, void *pinfo, 12078b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project void *puc) 12088b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project{ 12098b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project siginfo_t *info = pinfo; 12108b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project struct ucontext *uc = puc; 12118b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project greg_t pc = uc->uc_mcontext.pc; 12128b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project int is_write; 12138b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project 12148b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project /* XXX: compute is_write */ 12158b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project is_write = 0; 12168b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project return handle_cpu_signal(pc, (unsigned long)info->si_addr, 12178b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project is_write, &uc->uc_sigmask, puc); 12188b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project} 12198b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project 12208b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project#elif defined(__hppa__) 12218b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project 12228b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Projectint cpu_signal_handler(int host_signum, void *pinfo, 12238b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project void *puc) 12248b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project{ 12258b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project struct siginfo *info = pinfo; 12268b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project struct ucontext *uc = puc; 122724cd25ab654ab829ba8e9c0c634db50ed28f325aDavid Turner unsigned long pc = uc->uc_mcontext.sc_iaoq[0]; 122824cd25ab654ab829ba8e9c0c634db50ed28f325aDavid Turner uint32_t insn = *(uint32_t *)pc; 122924cd25ab654ab829ba8e9c0c634db50ed28f325aDavid Turner int is_write = 0; 123024cd25ab654ab829ba8e9c0c634db50ed28f325aDavid Turner 123124cd25ab654ab829ba8e9c0c634db50ed28f325aDavid Turner /* XXX: need kernel patch to get write flag faster. */ 123224cd25ab654ab829ba8e9c0c634db50ed28f325aDavid Turner switch (insn >> 26) { 123324cd25ab654ab829ba8e9c0c634db50ed28f325aDavid Turner case 0x1a: /* STW */ 123424cd25ab654ab829ba8e9c0c634db50ed28f325aDavid Turner case 0x19: /* STH */ 123524cd25ab654ab829ba8e9c0c634db50ed28f325aDavid Turner case 0x18: /* STB */ 123624cd25ab654ab829ba8e9c0c634db50ed28f325aDavid Turner case 0x1b: /* STWM */ 123724cd25ab654ab829ba8e9c0c634db50ed28f325aDavid Turner is_write = 1; 123824cd25ab654ab829ba8e9c0c634db50ed28f325aDavid Turner break; 123924cd25ab654ab829ba8e9c0c634db50ed28f325aDavid Turner 124024cd25ab654ab829ba8e9c0c634db50ed28f325aDavid Turner case 0x09: /* CSTWX, FSTWX, FSTWS */ 124124cd25ab654ab829ba8e9c0c634db50ed28f325aDavid Turner case 0x0b: /* CSTDX, FSTDX, FSTDS */ 124224cd25ab654ab829ba8e9c0c634db50ed28f325aDavid Turner /* Distinguish from coprocessor load ... */ 124324cd25ab654ab829ba8e9c0c634db50ed28f325aDavid Turner is_write = (insn >> 9) & 1; 124424cd25ab654ab829ba8e9c0c634db50ed28f325aDavid Turner break; 124524cd25ab654ab829ba8e9c0c634db50ed28f325aDavid Turner 124624cd25ab654ab829ba8e9c0c634db50ed28f325aDavid Turner case 0x03: 124724cd25ab654ab829ba8e9c0c634db50ed28f325aDavid Turner switch ((insn >> 6) & 15) { 124824cd25ab654ab829ba8e9c0c634db50ed28f325aDavid Turner case 0xa: /* STWS */ 124924cd25ab654ab829ba8e9c0c634db50ed28f325aDavid Turner case 0x9: /* STHS */ 125024cd25ab654ab829ba8e9c0c634db50ed28f325aDavid Turner case 0x8: /* STBS */ 125124cd25ab654ab829ba8e9c0c634db50ed28f325aDavid Turner case 0xe: /* STWAS */ 125224cd25ab654ab829ba8e9c0c634db50ed28f325aDavid Turner case 0xc: /* STBYS */ 125324cd25ab654ab829ba8e9c0c634db50ed28f325aDavid Turner is_write = 1; 125424cd25ab654ab829ba8e9c0c634db50ed28f325aDavid Turner } 125524cd25ab654ab829ba8e9c0c634db50ed28f325aDavid Turner break; 125624cd25ab654ab829ba8e9c0c634db50ed28f325aDavid Turner } 12578b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project 1258f645f7d6fd841e39524e5df8c1a7fd8347f92ac1David 'Digit' Turner return handle_cpu_signal(pc, (unsigned long)info->si_addr, 125924cd25ab654ab829ba8e9c0c634db50ed28f325aDavid Turner is_write, &uc->uc_sigmask, puc); 12608b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project} 12618b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project 12628b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project#else 12638b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project 12648b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project#error host CPU specific signal handler needed 12658b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project 12668b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project#endif 12678b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project 12688b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project#endif /* !defined(CONFIG_SOFTMMU) */ 1269