184778508Sblueswir1 /* 284778508Sblueswir1 * qemu user main 384778508Sblueswir1 * 484778508Sblueswir1 * Copyright (c) 2003-2008 Fabrice Bellard 584778508Sblueswir1 * 684778508Sblueswir1 * This program is free software; you can redistribute it and/or modify 784778508Sblueswir1 * it under the terms of the GNU General Public License as published by 884778508Sblueswir1 * the Free Software Foundation; either version 2 of the License, or 984778508Sblueswir1 * (at your option) any later version. 1084778508Sblueswir1 * 1184778508Sblueswir1 * This program is distributed in the hope that it will be useful, 1284778508Sblueswir1 * but WITHOUT ANY WARRANTY; without even the implied warranty of 1384778508Sblueswir1 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 1484778508Sblueswir1 * GNU General Public License for more details. 1584778508Sblueswir1 * 1684778508Sblueswir1 * You should have received a copy of the GNU General Public License 178167ee88SBlue Swirl * along with this program; if not, see <http://www.gnu.org/licenses/>. 1884778508Sblueswir1 */ 1984778508Sblueswir1 #include <stdlib.h> 2084778508Sblueswir1 #include <stdio.h> 2184778508Sblueswir1 #include <stdarg.h> 2284778508Sblueswir1 #include <string.h> 2384778508Sblueswir1 #include <errno.h> 2484778508Sblueswir1 #include <unistd.h> 2584778508Sblueswir1 #include <machine/trap.h> 2631fc12dfSblueswir1 #include <sys/types.h> 2731fc12dfSblueswir1 #include <sys/mman.h> 2884778508Sblueswir1 2984778508Sblueswir1 #include "qemu.h" 3084778508Sblueswir1 #include "qemu-common.h" 3184778508Sblueswir1 /* For tb_lock */ 3284778508Sblueswir1 #include "exec-all.h" 3384778508Sblueswir1 34fc0d96b4SBlue Swirl 35fc0d96b4SBlue Swirl #include "envlist.h" 36fc0d96b4SBlue Swirl 3784778508Sblueswir1 #define DEBUG_LOGFILE "/tmp/qemu.log" 3884778508Sblueswir1 391b530a6dSaurel32 int singlestep; 40*2fa5d9baSBlue Swirl #if defined(CONFIG_USE_GUEST_BASE) 41*2fa5d9baSBlue Swirl unsigned long mmap_min_addr; 42*2fa5d9baSBlue Swirl unsigned long guest_base; 43*2fa5d9baSBlue Swirl int have_guest_base; 44*2fa5d9baSBlue Swirl #endif 451b530a6dSaurel32 4684778508Sblueswir1 static const char *interp_prefix = CONFIG_QEMU_PREFIX; 4784778508Sblueswir1 const char *qemu_uname_release = CONFIG_UNAME_RELEASE; 4884778508Sblueswir1 extern char **environ; 4984778508Sblueswir1 5084778508Sblueswir1 /* XXX: on x86 MAP_GROWSDOWN only works if ESP <= address + 32, so 5184778508Sblueswir1 we allocate a bigger stack. Need a better solution, for example 5284778508Sblueswir1 by remapping the process stack directly at the right place */ 5384778508Sblueswir1 unsigned long x86_stack_size = 512 * 1024; 5484778508Sblueswir1 5584778508Sblueswir1 void gemu_log(const char *fmt, ...) 5684778508Sblueswir1 { 5784778508Sblueswir1 va_list ap; 5884778508Sblueswir1 5984778508Sblueswir1 va_start(ap, fmt); 6084778508Sblueswir1 vfprintf(stderr, fmt, ap); 6184778508Sblueswir1 va_end(ap); 6284778508Sblueswir1 } 639399f095Sblueswir1 6431fc12dfSblueswir1 #if defined(TARGET_I386) 6531fc12dfSblueswir1 int cpu_get_pic_interrupt(CPUState *env) 6631fc12dfSblueswir1 { 6731fc12dfSblueswir1 return -1; 6831fc12dfSblueswir1 } 6931fc12dfSblueswir1 #endif 7031fc12dfSblueswir1 719399f095Sblueswir1 /* These are no-ops because we are not threadsafe. */ 729399f095Sblueswir1 static inline void cpu_exec_start(CPUState *env) 739399f095Sblueswir1 { 749399f095Sblueswir1 } 759399f095Sblueswir1 769399f095Sblueswir1 static inline void cpu_exec_end(CPUState *env) 779399f095Sblueswir1 { 789399f095Sblueswir1 } 799399f095Sblueswir1 809399f095Sblueswir1 static inline void start_exclusive(void) 819399f095Sblueswir1 { 829399f095Sblueswir1 } 839399f095Sblueswir1 849399f095Sblueswir1 static inline void end_exclusive(void) 859399f095Sblueswir1 { 869399f095Sblueswir1 } 879399f095Sblueswir1 889399f095Sblueswir1 void fork_start(void) 899399f095Sblueswir1 { 909399f095Sblueswir1 } 919399f095Sblueswir1 929399f095Sblueswir1 void fork_end(int child) 939399f095Sblueswir1 { 949399f095Sblueswir1 if (child) { 959399f095Sblueswir1 gdbserver_fork(thread_env); 969399f095Sblueswir1 } 979399f095Sblueswir1 } 989399f095Sblueswir1 999399f095Sblueswir1 void cpu_list_lock(void) 1009399f095Sblueswir1 { 1019399f095Sblueswir1 } 1029399f095Sblueswir1 1039399f095Sblueswir1 void cpu_list_unlock(void) 1049399f095Sblueswir1 { 1059399f095Sblueswir1 } 1069399f095Sblueswir1 10731fc12dfSblueswir1 #ifdef TARGET_I386 10831fc12dfSblueswir1 /***********************************************************/ 10931fc12dfSblueswir1 /* CPUX86 core interface */ 11031fc12dfSblueswir1 11131fc12dfSblueswir1 void cpu_smm_update(CPUState *env) 11231fc12dfSblueswir1 { 11331fc12dfSblueswir1 } 11431fc12dfSblueswir1 11531fc12dfSblueswir1 uint64_t cpu_get_tsc(CPUX86State *env) 11631fc12dfSblueswir1 { 11731fc12dfSblueswir1 return cpu_get_real_ticks(); 11831fc12dfSblueswir1 } 11931fc12dfSblueswir1 12031fc12dfSblueswir1 static void write_dt(void *ptr, unsigned long addr, unsigned long limit, 12131fc12dfSblueswir1 int flags) 12231fc12dfSblueswir1 { 12331fc12dfSblueswir1 unsigned int e1, e2; 12431fc12dfSblueswir1 uint32_t *p; 12531fc12dfSblueswir1 e1 = (addr << 16) | (limit & 0xffff); 12631fc12dfSblueswir1 e2 = ((addr >> 16) & 0xff) | (addr & 0xff000000) | (limit & 0x000f0000); 12731fc12dfSblueswir1 e2 |= flags; 12831fc12dfSblueswir1 p = ptr; 12931fc12dfSblueswir1 p[0] = tswap32(e1); 13031fc12dfSblueswir1 p[1] = tswap32(e2); 13131fc12dfSblueswir1 } 13231fc12dfSblueswir1 13331fc12dfSblueswir1 static uint64_t *idt_table; 13431fc12dfSblueswir1 #ifdef TARGET_X86_64 13531fc12dfSblueswir1 static void set_gate64(void *ptr, unsigned int type, unsigned int dpl, 13631fc12dfSblueswir1 uint64_t addr, unsigned int sel) 13731fc12dfSblueswir1 { 13831fc12dfSblueswir1 uint32_t *p, e1, e2; 13931fc12dfSblueswir1 e1 = (addr & 0xffff) | (sel << 16); 14031fc12dfSblueswir1 e2 = (addr & 0xffff0000) | 0x8000 | (dpl << 13) | (type << 8); 14131fc12dfSblueswir1 p = ptr; 14231fc12dfSblueswir1 p[0] = tswap32(e1); 14331fc12dfSblueswir1 p[1] = tswap32(e2); 14431fc12dfSblueswir1 p[2] = tswap32(addr >> 32); 14531fc12dfSblueswir1 p[3] = 0; 14631fc12dfSblueswir1 } 14731fc12dfSblueswir1 /* only dpl matters as we do only user space emulation */ 14831fc12dfSblueswir1 static void set_idt(int n, unsigned int dpl) 14931fc12dfSblueswir1 { 15031fc12dfSblueswir1 set_gate64(idt_table + n * 2, 0, dpl, 0, 0); 15131fc12dfSblueswir1 } 15231fc12dfSblueswir1 #else 15331fc12dfSblueswir1 static void set_gate(void *ptr, unsigned int type, unsigned int dpl, 15431fc12dfSblueswir1 uint32_t addr, unsigned int sel) 15531fc12dfSblueswir1 { 15631fc12dfSblueswir1 uint32_t *p, e1, e2; 15731fc12dfSblueswir1 e1 = (addr & 0xffff) | (sel << 16); 15831fc12dfSblueswir1 e2 = (addr & 0xffff0000) | 0x8000 | (dpl << 13) | (type << 8); 15931fc12dfSblueswir1 p = ptr; 16031fc12dfSblueswir1 p[0] = tswap32(e1); 16131fc12dfSblueswir1 p[1] = tswap32(e2); 16231fc12dfSblueswir1 } 16331fc12dfSblueswir1 16431fc12dfSblueswir1 /* only dpl matters as we do only user space emulation */ 16531fc12dfSblueswir1 static void set_idt(int n, unsigned int dpl) 16631fc12dfSblueswir1 { 16731fc12dfSblueswir1 set_gate(idt_table + n, 0, dpl, 0, 0); 16831fc12dfSblueswir1 } 16931fc12dfSblueswir1 #endif 17031fc12dfSblueswir1 17131fc12dfSblueswir1 void cpu_loop(CPUX86State *env, enum BSDType bsd_type) 17231fc12dfSblueswir1 { 17331fc12dfSblueswir1 int trapnr; 17431fc12dfSblueswir1 abi_ulong pc; 17531fc12dfSblueswir1 //target_siginfo_t info; 17631fc12dfSblueswir1 17731fc12dfSblueswir1 for(;;) { 17831fc12dfSblueswir1 trapnr = cpu_x86_exec(env); 17931fc12dfSblueswir1 switch(trapnr) { 18031fc12dfSblueswir1 case 0x80: 18131fc12dfSblueswir1 /* syscall from int $0x80 */ 18231fc12dfSblueswir1 env->regs[R_EAX] = do_openbsd_syscall(env, 18331fc12dfSblueswir1 env->regs[R_EAX], 18431fc12dfSblueswir1 env->regs[R_EBX], 18531fc12dfSblueswir1 env->regs[R_ECX], 18631fc12dfSblueswir1 env->regs[R_EDX], 18731fc12dfSblueswir1 env->regs[R_ESI], 18831fc12dfSblueswir1 env->regs[R_EDI], 18931fc12dfSblueswir1 env->regs[R_EBP]); 19031fc12dfSblueswir1 break; 19131fc12dfSblueswir1 #ifndef TARGET_ABI32 19231fc12dfSblueswir1 case EXCP_SYSCALL: 19331fc12dfSblueswir1 /* linux syscall from syscall intruction */ 19431fc12dfSblueswir1 env->regs[R_EAX] = do_openbsd_syscall(env, 19531fc12dfSblueswir1 env->regs[R_EAX], 19631fc12dfSblueswir1 env->regs[R_EDI], 19731fc12dfSblueswir1 env->regs[R_ESI], 19831fc12dfSblueswir1 env->regs[R_EDX], 19931fc12dfSblueswir1 env->regs[10], 20031fc12dfSblueswir1 env->regs[8], 20131fc12dfSblueswir1 env->regs[9]); 20231fc12dfSblueswir1 env->eip = env->exception_next_eip; 20331fc12dfSblueswir1 break; 20431fc12dfSblueswir1 #endif 20531fc12dfSblueswir1 #if 0 20631fc12dfSblueswir1 case EXCP0B_NOSEG: 20731fc12dfSblueswir1 case EXCP0C_STACK: 20831fc12dfSblueswir1 info.si_signo = SIGBUS; 20931fc12dfSblueswir1 info.si_errno = 0; 21031fc12dfSblueswir1 info.si_code = TARGET_SI_KERNEL; 21131fc12dfSblueswir1 info._sifields._sigfault._addr = 0; 21231fc12dfSblueswir1 queue_signal(env, info.si_signo, &info); 21331fc12dfSblueswir1 break; 21431fc12dfSblueswir1 case EXCP0D_GPF: 21531fc12dfSblueswir1 /* XXX: potential problem if ABI32 */ 21631fc12dfSblueswir1 #ifndef TARGET_X86_64 21731fc12dfSblueswir1 if (env->eflags & VM_MASK) { 21831fc12dfSblueswir1 handle_vm86_fault(env); 21931fc12dfSblueswir1 } else 22031fc12dfSblueswir1 #endif 22131fc12dfSblueswir1 { 22231fc12dfSblueswir1 info.si_signo = SIGSEGV; 22331fc12dfSblueswir1 info.si_errno = 0; 22431fc12dfSblueswir1 info.si_code = TARGET_SI_KERNEL; 22531fc12dfSblueswir1 info._sifields._sigfault._addr = 0; 22631fc12dfSblueswir1 queue_signal(env, info.si_signo, &info); 22731fc12dfSblueswir1 } 22831fc12dfSblueswir1 break; 22931fc12dfSblueswir1 case EXCP0E_PAGE: 23031fc12dfSblueswir1 info.si_signo = SIGSEGV; 23131fc12dfSblueswir1 info.si_errno = 0; 23231fc12dfSblueswir1 if (!(env->error_code & 1)) 23331fc12dfSblueswir1 info.si_code = TARGET_SEGV_MAPERR; 23431fc12dfSblueswir1 else 23531fc12dfSblueswir1 info.si_code = TARGET_SEGV_ACCERR; 23631fc12dfSblueswir1 info._sifields._sigfault._addr = env->cr[2]; 23731fc12dfSblueswir1 queue_signal(env, info.si_signo, &info); 23831fc12dfSblueswir1 break; 23931fc12dfSblueswir1 case EXCP00_DIVZ: 24031fc12dfSblueswir1 #ifndef TARGET_X86_64 24131fc12dfSblueswir1 if (env->eflags & VM_MASK) { 24231fc12dfSblueswir1 handle_vm86_trap(env, trapnr); 24331fc12dfSblueswir1 } else 24431fc12dfSblueswir1 #endif 24531fc12dfSblueswir1 { 24631fc12dfSblueswir1 /* division by zero */ 24731fc12dfSblueswir1 info.si_signo = SIGFPE; 24831fc12dfSblueswir1 info.si_errno = 0; 24931fc12dfSblueswir1 info.si_code = TARGET_FPE_INTDIV; 25031fc12dfSblueswir1 info._sifields._sigfault._addr = env->eip; 25131fc12dfSblueswir1 queue_signal(env, info.si_signo, &info); 25231fc12dfSblueswir1 } 25331fc12dfSblueswir1 break; 25431fc12dfSblueswir1 case EXCP01_DB: 25531fc12dfSblueswir1 case EXCP03_INT3: 25631fc12dfSblueswir1 #ifndef TARGET_X86_64 25731fc12dfSblueswir1 if (env->eflags & VM_MASK) { 25831fc12dfSblueswir1 handle_vm86_trap(env, trapnr); 25931fc12dfSblueswir1 } else 26031fc12dfSblueswir1 #endif 26131fc12dfSblueswir1 { 26231fc12dfSblueswir1 info.si_signo = SIGTRAP; 26331fc12dfSblueswir1 info.si_errno = 0; 26431fc12dfSblueswir1 if (trapnr == EXCP01_DB) { 26531fc12dfSblueswir1 info.si_code = TARGET_TRAP_BRKPT; 26631fc12dfSblueswir1 info._sifields._sigfault._addr = env->eip; 26731fc12dfSblueswir1 } else { 26831fc12dfSblueswir1 info.si_code = TARGET_SI_KERNEL; 26931fc12dfSblueswir1 info._sifields._sigfault._addr = 0; 27031fc12dfSblueswir1 } 27131fc12dfSblueswir1 queue_signal(env, info.si_signo, &info); 27231fc12dfSblueswir1 } 27331fc12dfSblueswir1 break; 27431fc12dfSblueswir1 case EXCP04_INTO: 27531fc12dfSblueswir1 case EXCP05_BOUND: 27631fc12dfSblueswir1 #ifndef TARGET_X86_64 27731fc12dfSblueswir1 if (env->eflags & VM_MASK) { 27831fc12dfSblueswir1 handle_vm86_trap(env, trapnr); 27931fc12dfSblueswir1 } else 28031fc12dfSblueswir1 #endif 28131fc12dfSblueswir1 { 28231fc12dfSblueswir1 info.si_signo = SIGSEGV; 28331fc12dfSblueswir1 info.si_errno = 0; 28431fc12dfSblueswir1 info.si_code = TARGET_SI_KERNEL; 28531fc12dfSblueswir1 info._sifields._sigfault._addr = 0; 28631fc12dfSblueswir1 queue_signal(env, info.si_signo, &info); 28731fc12dfSblueswir1 } 28831fc12dfSblueswir1 break; 28931fc12dfSblueswir1 case EXCP06_ILLOP: 29031fc12dfSblueswir1 info.si_signo = SIGILL; 29131fc12dfSblueswir1 info.si_errno = 0; 29231fc12dfSblueswir1 info.si_code = TARGET_ILL_ILLOPN; 29331fc12dfSblueswir1 info._sifields._sigfault._addr = env->eip; 29431fc12dfSblueswir1 queue_signal(env, info.si_signo, &info); 29531fc12dfSblueswir1 break; 29631fc12dfSblueswir1 #endif 29731fc12dfSblueswir1 case EXCP_INTERRUPT: 29831fc12dfSblueswir1 /* just indicate that signals should be handled asap */ 29931fc12dfSblueswir1 break; 30031fc12dfSblueswir1 #if 0 30131fc12dfSblueswir1 case EXCP_DEBUG: 30231fc12dfSblueswir1 { 30331fc12dfSblueswir1 int sig; 30431fc12dfSblueswir1 30531fc12dfSblueswir1 sig = gdb_handlesig (env, TARGET_SIGTRAP); 30631fc12dfSblueswir1 if (sig) 30731fc12dfSblueswir1 { 30831fc12dfSblueswir1 info.si_signo = sig; 30931fc12dfSblueswir1 info.si_errno = 0; 31031fc12dfSblueswir1 info.si_code = TARGET_TRAP_BRKPT; 31131fc12dfSblueswir1 queue_signal(env, info.si_signo, &info); 31231fc12dfSblueswir1 } 31331fc12dfSblueswir1 } 31431fc12dfSblueswir1 break; 31531fc12dfSblueswir1 #endif 31631fc12dfSblueswir1 default: 31731fc12dfSblueswir1 pc = env->segs[R_CS].base + env->eip; 31831fc12dfSblueswir1 fprintf(stderr, "qemu: 0x%08lx: unhandled CPU exception 0x%x - aborting\n", 31931fc12dfSblueswir1 (long)pc, trapnr); 32031fc12dfSblueswir1 abort(); 32131fc12dfSblueswir1 } 32231fc12dfSblueswir1 process_pending_signals(env); 32331fc12dfSblueswir1 } 32431fc12dfSblueswir1 } 32531fc12dfSblueswir1 #endif 32631fc12dfSblueswir1 32784778508Sblueswir1 #ifdef TARGET_SPARC 32884778508Sblueswir1 #define SPARC64_STACK_BIAS 2047 32984778508Sblueswir1 33084778508Sblueswir1 //#define DEBUG_WIN 33184778508Sblueswir1 /* WARNING: dealing with register windows _is_ complicated. More info 33284778508Sblueswir1 can be found at http://www.sics.se/~psm/sparcstack.html */ 33384778508Sblueswir1 static inline int get_reg_index(CPUSPARCState *env, int cwp, int index) 33484778508Sblueswir1 { 33584778508Sblueswir1 index = (index + cwp * 16) % (16 * env->nwindows); 33684778508Sblueswir1 /* wrap handling : if cwp is on the last window, then we use the 33784778508Sblueswir1 registers 'after' the end */ 33884778508Sblueswir1 if (index < 8 && env->cwp == env->nwindows - 1) 33984778508Sblueswir1 index += 16 * env->nwindows; 34084778508Sblueswir1 return index; 34184778508Sblueswir1 } 34284778508Sblueswir1 34384778508Sblueswir1 /* save the register window 'cwp1' */ 34484778508Sblueswir1 static inline void save_window_offset(CPUSPARCState *env, int cwp1) 34584778508Sblueswir1 { 34684778508Sblueswir1 unsigned int i; 34784778508Sblueswir1 abi_ulong sp_ptr; 34884778508Sblueswir1 34984778508Sblueswir1 sp_ptr = env->regbase[get_reg_index(env, cwp1, 6)]; 35084778508Sblueswir1 #ifdef TARGET_SPARC64 35184778508Sblueswir1 if (sp_ptr & 3) 35284778508Sblueswir1 sp_ptr += SPARC64_STACK_BIAS; 35384778508Sblueswir1 #endif 35484778508Sblueswir1 #if defined(DEBUG_WIN) 35584778508Sblueswir1 printf("win_overflow: sp_ptr=0x" TARGET_ABI_FMT_lx " save_cwp=%d\n", 35684778508Sblueswir1 sp_ptr, cwp1); 35784778508Sblueswir1 #endif 35884778508Sblueswir1 for(i = 0; i < 16; i++) { 35984778508Sblueswir1 /* FIXME - what to do if put_user() fails? */ 36084778508Sblueswir1 put_user_ual(env->regbase[get_reg_index(env, cwp1, 8 + i)], sp_ptr); 36184778508Sblueswir1 sp_ptr += sizeof(abi_ulong); 36284778508Sblueswir1 } 36384778508Sblueswir1 } 36484778508Sblueswir1 36584778508Sblueswir1 static void save_window(CPUSPARCState *env) 36684778508Sblueswir1 { 36784778508Sblueswir1 #ifndef TARGET_SPARC64 36884778508Sblueswir1 unsigned int new_wim; 36984778508Sblueswir1 new_wim = ((env->wim >> 1) | (env->wim << (env->nwindows - 1))) & 37084778508Sblueswir1 ((1LL << env->nwindows) - 1); 37184778508Sblueswir1 save_window_offset(env, cpu_cwp_dec(env, env->cwp - 2)); 37284778508Sblueswir1 env->wim = new_wim; 37384778508Sblueswir1 #else 37484778508Sblueswir1 save_window_offset(env, cpu_cwp_dec(env, env->cwp - 2)); 37584778508Sblueswir1 env->cansave++; 37684778508Sblueswir1 env->canrestore--; 37784778508Sblueswir1 #endif 37884778508Sblueswir1 } 37984778508Sblueswir1 38084778508Sblueswir1 static void restore_window(CPUSPARCState *env) 38184778508Sblueswir1 { 38284778508Sblueswir1 #ifndef TARGET_SPARC64 38384778508Sblueswir1 unsigned int new_wim; 38484778508Sblueswir1 #endif 38584778508Sblueswir1 unsigned int i, cwp1; 38684778508Sblueswir1 abi_ulong sp_ptr; 38784778508Sblueswir1 38884778508Sblueswir1 #ifndef TARGET_SPARC64 38984778508Sblueswir1 new_wim = ((env->wim << 1) | (env->wim >> (env->nwindows - 1))) & 39084778508Sblueswir1 ((1LL << env->nwindows) - 1); 39184778508Sblueswir1 #endif 39284778508Sblueswir1 39384778508Sblueswir1 /* restore the invalid window */ 39484778508Sblueswir1 cwp1 = cpu_cwp_inc(env, env->cwp + 1); 39584778508Sblueswir1 sp_ptr = env->regbase[get_reg_index(env, cwp1, 6)]; 39684778508Sblueswir1 #ifdef TARGET_SPARC64 39784778508Sblueswir1 if (sp_ptr & 3) 39884778508Sblueswir1 sp_ptr += SPARC64_STACK_BIAS; 39984778508Sblueswir1 #endif 40084778508Sblueswir1 #if defined(DEBUG_WIN) 40184778508Sblueswir1 printf("win_underflow: sp_ptr=0x" TARGET_ABI_FMT_lx " load_cwp=%d\n", 40284778508Sblueswir1 sp_ptr, cwp1); 40384778508Sblueswir1 #endif 40484778508Sblueswir1 for(i = 0; i < 16; i++) { 40584778508Sblueswir1 /* FIXME - what to do if get_user() fails? */ 40684778508Sblueswir1 get_user_ual(env->regbase[get_reg_index(env, cwp1, 8 + i)], sp_ptr); 40784778508Sblueswir1 sp_ptr += sizeof(abi_ulong); 40884778508Sblueswir1 } 40984778508Sblueswir1 #ifdef TARGET_SPARC64 41084778508Sblueswir1 env->canrestore++; 41184778508Sblueswir1 if (env->cleanwin < env->nwindows - 1) 41284778508Sblueswir1 env->cleanwin++; 41384778508Sblueswir1 env->cansave--; 41484778508Sblueswir1 #else 41584778508Sblueswir1 env->wim = new_wim; 41684778508Sblueswir1 #endif 41784778508Sblueswir1 } 41884778508Sblueswir1 41984778508Sblueswir1 static void flush_windows(CPUSPARCState *env) 42084778508Sblueswir1 { 42184778508Sblueswir1 int offset, cwp1; 42284778508Sblueswir1 42384778508Sblueswir1 offset = 1; 42484778508Sblueswir1 for(;;) { 42584778508Sblueswir1 /* if restore would invoke restore_window(), then we can stop */ 42684778508Sblueswir1 cwp1 = cpu_cwp_inc(env, env->cwp + offset); 42784778508Sblueswir1 #ifndef TARGET_SPARC64 42884778508Sblueswir1 if (env->wim & (1 << cwp1)) 42984778508Sblueswir1 break; 43084778508Sblueswir1 #else 43184778508Sblueswir1 if (env->canrestore == 0) 43284778508Sblueswir1 break; 43384778508Sblueswir1 env->cansave++; 43484778508Sblueswir1 env->canrestore--; 43584778508Sblueswir1 #endif 43684778508Sblueswir1 save_window_offset(env, cwp1); 43784778508Sblueswir1 offset++; 43884778508Sblueswir1 } 43984778508Sblueswir1 cwp1 = cpu_cwp_inc(env, env->cwp + 1); 44084778508Sblueswir1 #ifndef TARGET_SPARC64 44184778508Sblueswir1 /* set wim so that restore will reload the registers */ 44284778508Sblueswir1 env->wim = 1 << cwp1; 44384778508Sblueswir1 #endif 44484778508Sblueswir1 #if defined(DEBUG_WIN) 44584778508Sblueswir1 printf("flush_windows: nb=%d\n", offset - 1); 44684778508Sblueswir1 #endif 44784778508Sblueswir1 } 44884778508Sblueswir1 44984778508Sblueswir1 void cpu_loop(CPUSPARCState *env, enum BSDType bsd_type) 45084778508Sblueswir1 { 45184778508Sblueswir1 int trapnr, ret, syscall_nr; 45284778508Sblueswir1 //target_siginfo_t info; 45384778508Sblueswir1 45484778508Sblueswir1 while (1) { 45584778508Sblueswir1 trapnr = cpu_sparc_exec (env); 45684778508Sblueswir1 45784778508Sblueswir1 switch (trapnr) { 45877b9435fSblueswir1 #ifndef TARGET_SPARC64 45977b9435fSblueswir1 case 0x80: 46077b9435fSblueswir1 #else 46184778508Sblueswir1 case 0x100: 46277b9435fSblueswir1 #endif 46384778508Sblueswir1 syscall_nr = env->gregs[1]; 46484778508Sblueswir1 if (bsd_type == target_freebsd) 46584778508Sblueswir1 ret = do_freebsd_syscall(env, syscall_nr, 46684778508Sblueswir1 env->regwptr[0], env->regwptr[1], 46784778508Sblueswir1 env->regwptr[2], env->regwptr[3], 46884778508Sblueswir1 env->regwptr[4], env->regwptr[5]); 46984778508Sblueswir1 else if (bsd_type == target_netbsd) 47084778508Sblueswir1 ret = do_netbsd_syscall(env, syscall_nr, 47184778508Sblueswir1 env->regwptr[0], env->regwptr[1], 47284778508Sblueswir1 env->regwptr[2], env->regwptr[3], 47384778508Sblueswir1 env->regwptr[4], env->regwptr[5]); 474cdba95bdSblueswir1 else { //if (bsd_type == target_openbsd) 475cdba95bdSblueswir1 #if defined(TARGET_SPARC64) 476cdba95bdSblueswir1 syscall_nr &= ~(TARGET_OPENBSD_SYSCALL_G7RFLAG | 477cdba95bdSblueswir1 TARGET_OPENBSD_SYSCALL_G2RFLAG); 478cdba95bdSblueswir1 #endif 47984778508Sblueswir1 ret = do_openbsd_syscall(env, syscall_nr, 48084778508Sblueswir1 env->regwptr[0], env->regwptr[1], 48184778508Sblueswir1 env->regwptr[2], env->regwptr[3], 48284778508Sblueswir1 env->regwptr[4], env->regwptr[5]); 483cdba95bdSblueswir1 } 48484778508Sblueswir1 if ((unsigned int)ret >= (unsigned int)(-515)) { 48584778508Sblueswir1 #if defined(TARGET_SPARC64) && !defined(TARGET_ABI32) 48684778508Sblueswir1 env->xcc |= PSR_CARRY; 48784778508Sblueswir1 #else 48884778508Sblueswir1 env->psr |= PSR_CARRY; 48984778508Sblueswir1 #endif 49084778508Sblueswir1 } else { 49184778508Sblueswir1 #if defined(TARGET_SPARC64) && !defined(TARGET_ABI32) 49284778508Sblueswir1 env->xcc &= ~PSR_CARRY; 49384778508Sblueswir1 #else 49484778508Sblueswir1 env->psr &= ~PSR_CARRY; 49584778508Sblueswir1 #endif 49684778508Sblueswir1 } 49784778508Sblueswir1 env->regwptr[0] = ret; 49884778508Sblueswir1 /* next instruction */ 499cdba95bdSblueswir1 #if defined(TARGET_SPARC64) 500cdba95bdSblueswir1 if (bsd_type == target_openbsd && 501cdba95bdSblueswir1 env->gregs[1] & TARGET_OPENBSD_SYSCALL_G2RFLAG) { 50284778508Sblueswir1 env->pc = env->gregs[2]; 50384778508Sblueswir1 env->npc = env->pc + 4; 504cdba95bdSblueswir1 } else if (bsd_type == target_openbsd && 505cdba95bdSblueswir1 env->gregs[1] & TARGET_OPENBSD_SYSCALL_G7RFLAG) { 50684778508Sblueswir1 env->pc = env->gregs[7]; 50784778508Sblueswir1 env->npc = env->pc + 4; 50884778508Sblueswir1 } else { 50984778508Sblueswir1 env->pc = env->npc; 51084778508Sblueswir1 env->npc = env->npc + 4; 51184778508Sblueswir1 } 51284778508Sblueswir1 #else 51384778508Sblueswir1 env->pc = env->npc; 51484778508Sblueswir1 env->npc = env->npc + 4; 51584778508Sblueswir1 #endif 51684778508Sblueswir1 break; 51784778508Sblueswir1 case 0x83: /* flush windows */ 51884778508Sblueswir1 #ifdef TARGET_ABI32 51984778508Sblueswir1 case 0x103: 52084778508Sblueswir1 #endif 52184778508Sblueswir1 flush_windows(env); 52284778508Sblueswir1 /* next instruction */ 52384778508Sblueswir1 env->pc = env->npc; 52484778508Sblueswir1 env->npc = env->npc + 4; 52584778508Sblueswir1 break; 52684778508Sblueswir1 #ifndef TARGET_SPARC64 52784778508Sblueswir1 case TT_WIN_OVF: /* window overflow */ 52884778508Sblueswir1 save_window(env); 52984778508Sblueswir1 break; 53084778508Sblueswir1 case TT_WIN_UNF: /* window underflow */ 53184778508Sblueswir1 restore_window(env); 53284778508Sblueswir1 break; 53384778508Sblueswir1 case TT_TFAULT: 53484778508Sblueswir1 case TT_DFAULT: 53584778508Sblueswir1 #if 0 53684778508Sblueswir1 { 53784778508Sblueswir1 info.si_signo = SIGSEGV; 53884778508Sblueswir1 info.si_errno = 0; 53984778508Sblueswir1 /* XXX: check env->error_code */ 54084778508Sblueswir1 info.si_code = TARGET_SEGV_MAPERR; 54184778508Sblueswir1 info._sifields._sigfault._addr = env->mmuregs[4]; 54284778508Sblueswir1 queue_signal(env, info.si_signo, &info); 54384778508Sblueswir1 } 54484778508Sblueswir1 #endif 54584778508Sblueswir1 break; 54684778508Sblueswir1 #else 54784778508Sblueswir1 case TT_SPILL: /* window overflow */ 54884778508Sblueswir1 save_window(env); 54984778508Sblueswir1 break; 55084778508Sblueswir1 case TT_FILL: /* window underflow */ 55184778508Sblueswir1 restore_window(env); 55284778508Sblueswir1 break; 55384778508Sblueswir1 case TT_TFAULT: 55484778508Sblueswir1 case TT_DFAULT: 55584778508Sblueswir1 #if 0 55684778508Sblueswir1 { 55784778508Sblueswir1 info.si_signo = SIGSEGV; 55884778508Sblueswir1 info.si_errno = 0; 55984778508Sblueswir1 /* XXX: check env->error_code */ 56084778508Sblueswir1 info.si_code = TARGET_SEGV_MAPERR; 56184778508Sblueswir1 if (trapnr == TT_DFAULT) 56284778508Sblueswir1 info._sifields._sigfault._addr = env->dmmuregs[4]; 56384778508Sblueswir1 else 56484778508Sblueswir1 info._sifields._sigfault._addr = env->tsptr->tpc; 56584778508Sblueswir1 //queue_signal(env, info.si_signo, &info); 56684778508Sblueswir1 } 56784778508Sblueswir1 #endif 56884778508Sblueswir1 break; 56984778508Sblueswir1 #endif 57084778508Sblueswir1 case EXCP_INTERRUPT: 57184778508Sblueswir1 /* just indicate that signals should be handled asap */ 57284778508Sblueswir1 break; 57384778508Sblueswir1 case EXCP_DEBUG: 57484778508Sblueswir1 { 57584778508Sblueswir1 int sig; 57684778508Sblueswir1 57784778508Sblueswir1 sig = gdb_handlesig (env, TARGET_SIGTRAP); 57884778508Sblueswir1 #if 0 57984778508Sblueswir1 if (sig) 58084778508Sblueswir1 { 58184778508Sblueswir1 info.si_signo = sig; 58284778508Sblueswir1 info.si_errno = 0; 58384778508Sblueswir1 info.si_code = TARGET_TRAP_BRKPT; 58484778508Sblueswir1 //queue_signal(env, info.si_signo, &info); 58584778508Sblueswir1 } 58684778508Sblueswir1 #endif 58784778508Sblueswir1 } 58884778508Sblueswir1 break; 58984778508Sblueswir1 default: 59084778508Sblueswir1 printf ("Unhandled trap: 0x%x\n", trapnr); 59184778508Sblueswir1 cpu_dump_state(env, stderr, fprintf, 0); 59284778508Sblueswir1 exit (1); 59384778508Sblueswir1 } 59484778508Sblueswir1 process_pending_signals (env); 59584778508Sblueswir1 } 59684778508Sblueswir1 } 59784778508Sblueswir1 59884778508Sblueswir1 #endif 59984778508Sblueswir1 60084778508Sblueswir1 static void usage(void) 60184778508Sblueswir1 { 60284778508Sblueswir1 printf("qemu-" TARGET_ARCH " version " QEMU_VERSION ", Copyright (c) 2003-2008 Fabrice Bellard\n" 60384778508Sblueswir1 "usage: qemu-" TARGET_ARCH " [options] program [arguments...]\n" 60484778508Sblueswir1 "BSD CPU emulator (compiled for %s emulation)\n" 60584778508Sblueswir1 "\n" 60684778508Sblueswir1 "Standard options:\n" 60784778508Sblueswir1 "-h print this help\n" 60884778508Sblueswir1 "-g port wait gdb connection to port\n" 60984778508Sblueswir1 "-L path set the elf interpreter prefix (default=%s)\n" 61084778508Sblueswir1 "-s size set the stack size in bytes (default=%ld)\n" 61184778508Sblueswir1 "-cpu model select CPU (-cpu ? for list)\n" 61284778508Sblueswir1 "-drop-ld-preload drop LD_PRELOAD for target process\n" 613fc0d96b4SBlue Swirl "-E var=value sets/modifies targets environment variable(s)\n" 614fc0d96b4SBlue Swirl "-U var unsets targets environment variable(s)\n" 615*2fa5d9baSBlue Swirl #if defined(CONFIG_USE_GUEST_BASE) 616*2fa5d9baSBlue Swirl "-B address set guest_base address to address\n" 617*2fa5d9baSBlue Swirl #endif 61884778508Sblueswir1 "-bsd type select emulated BSD type FreeBSD/NetBSD/OpenBSD (default)\n" 61984778508Sblueswir1 "\n" 62084778508Sblueswir1 "Debug options:\n" 62184778508Sblueswir1 "-d options activate log (logfile=%s)\n" 62284778508Sblueswir1 "-p pagesize set the host page size to 'pagesize'\n" 6231b530a6dSaurel32 "-singlestep always run in singlestep mode\n" 62484778508Sblueswir1 "-strace log system calls\n" 62584778508Sblueswir1 "\n" 62684778508Sblueswir1 "Environment variables:\n" 62784778508Sblueswir1 "QEMU_STRACE Print system calls and arguments similar to the\n" 62884778508Sblueswir1 " 'strace' program. Enable by setting to any value.\n" 629fc0d96b4SBlue Swirl "You can use -E and -U options to set/unset environment variables\n" 630fc0d96b4SBlue Swirl "for target process. It is possible to provide several variables\n" 631fc0d96b4SBlue Swirl "by repeating the option. For example:\n" 632fc0d96b4SBlue Swirl " -E var1=val2 -E var2=val2 -U LD_PRELOAD -U LD_DEBUG\n" 633fc0d96b4SBlue Swirl "Note that if you provide several changes to single variable\n" 634fc0d96b4SBlue Swirl "last change will stay in effect.\n" 63584778508Sblueswir1 , 63684778508Sblueswir1 TARGET_ARCH, 63784778508Sblueswir1 interp_prefix, 63884778508Sblueswir1 x86_stack_size, 63984778508Sblueswir1 DEBUG_LOGFILE); 6402d18e637Sblueswir1 exit(1); 64184778508Sblueswir1 } 64284778508Sblueswir1 64384778508Sblueswir1 THREAD CPUState *thread_env; 64484778508Sblueswir1 64584778508Sblueswir1 /* Assumes contents are already zeroed. */ 64684778508Sblueswir1 void init_task_state(TaskState *ts) 64784778508Sblueswir1 { 64884778508Sblueswir1 int i; 64984778508Sblueswir1 65084778508Sblueswir1 ts->used = 1; 65184778508Sblueswir1 ts->first_free = ts->sigqueue_table; 65284778508Sblueswir1 for (i = 0; i < MAX_SIGQUEUE_SIZE - 1; i++) { 65384778508Sblueswir1 ts->sigqueue_table[i].next = &ts->sigqueue_table[i + 1]; 65484778508Sblueswir1 } 65584778508Sblueswir1 ts->sigqueue_table[i].next = NULL; 65684778508Sblueswir1 } 65784778508Sblueswir1 65884778508Sblueswir1 int main(int argc, char **argv) 65984778508Sblueswir1 { 66084778508Sblueswir1 const char *filename; 66184778508Sblueswir1 const char *cpu_model; 66284778508Sblueswir1 struct target_pt_regs regs1, *regs = ®s1; 66384778508Sblueswir1 struct image_info info1, *info = &info1; 66484778508Sblueswir1 TaskState ts1, *ts = &ts1; 66584778508Sblueswir1 CPUState *env; 66684778508Sblueswir1 int optind; 66784778508Sblueswir1 const char *r; 66884778508Sblueswir1 int gdbstub_port = 0; 669fc0d96b4SBlue Swirl char **target_environ, **wrk; 670fc0d96b4SBlue Swirl envlist_t *envlist = NULL; 67184778508Sblueswir1 enum BSDType bsd_type = target_openbsd; 67284778508Sblueswir1 67384778508Sblueswir1 if (argc <= 1) 67484778508Sblueswir1 usage(); 67584778508Sblueswir1 67684778508Sblueswir1 /* init debug */ 67784778508Sblueswir1 cpu_set_log_filename(DEBUG_LOGFILE); 67884778508Sblueswir1 679fc0d96b4SBlue Swirl if ((envlist = envlist_create()) == NULL) { 680fc0d96b4SBlue Swirl (void) fprintf(stderr, "Unable to allocate envlist\n"); 681fc0d96b4SBlue Swirl exit(1); 682fc0d96b4SBlue Swirl } 683fc0d96b4SBlue Swirl 684fc0d96b4SBlue Swirl /* add current environment into the list */ 685fc0d96b4SBlue Swirl for (wrk = environ; *wrk != NULL; wrk++) { 686fc0d96b4SBlue Swirl (void) envlist_setenv(envlist, *wrk); 687fc0d96b4SBlue Swirl } 688fc0d96b4SBlue Swirl 68984778508Sblueswir1 cpu_model = NULL; 69084778508Sblueswir1 optind = 1; 69184778508Sblueswir1 for(;;) { 69284778508Sblueswir1 if (optind >= argc) 69384778508Sblueswir1 break; 69484778508Sblueswir1 r = argv[optind]; 69584778508Sblueswir1 if (r[0] != '-') 69684778508Sblueswir1 break; 69784778508Sblueswir1 optind++; 69884778508Sblueswir1 r++; 69984778508Sblueswir1 if (!strcmp(r, "-")) { 70084778508Sblueswir1 break; 70184778508Sblueswir1 } else if (!strcmp(r, "d")) { 70284778508Sblueswir1 int mask; 70384778508Sblueswir1 const CPULogItem *item; 70484778508Sblueswir1 70584778508Sblueswir1 if (optind >= argc) 70684778508Sblueswir1 break; 70784778508Sblueswir1 70884778508Sblueswir1 r = argv[optind++]; 70984778508Sblueswir1 mask = cpu_str_to_log_mask(r); 71084778508Sblueswir1 if (!mask) { 71184778508Sblueswir1 printf("Log items (comma separated):\n"); 71284778508Sblueswir1 for(item = cpu_log_items; item->mask != 0; item++) { 71384778508Sblueswir1 printf("%-10s %s\n", item->name, item->help); 71484778508Sblueswir1 } 71584778508Sblueswir1 exit(1); 71684778508Sblueswir1 } 71784778508Sblueswir1 cpu_set_log(mask); 718fc0d96b4SBlue Swirl } else if (!strcmp(r, "E")) { 719fc0d96b4SBlue Swirl r = argv[optind++]; 720fc0d96b4SBlue Swirl if (envlist_setenv(envlist, r) != 0) 721fc0d96b4SBlue Swirl usage(); 722fc0d96b4SBlue Swirl } else if (!strcmp(r, "U")) { 723fc0d96b4SBlue Swirl r = argv[optind++]; 724fc0d96b4SBlue Swirl if (envlist_unsetenv(envlist, r) != 0) 725fc0d96b4SBlue Swirl usage(); 72684778508Sblueswir1 } else if (!strcmp(r, "s")) { 72784778508Sblueswir1 r = argv[optind++]; 72884778508Sblueswir1 x86_stack_size = strtol(r, (char **)&r, 0); 72984778508Sblueswir1 if (x86_stack_size <= 0) 73084778508Sblueswir1 usage(); 73184778508Sblueswir1 if (*r == 'M') 73284778508Sblueswir1 x86_stack_size *= 1024 * 1024; 73384778508Sblueswir1 else if (*r == 'k' || *r == 'K') 73484778508Sblueswir1 x86_stack_size *= 1024; 73584778508Sblueswir1 } else if (!strcmp(r, "L")) { 73684778508Sblueswir1 interp_prefix = argv[optind++]; 73784778508Sblueswir1 } else if (!strcmp(r, "p")) { 73884778508Sblueswir1 qemu_host_page_size = atoi(argv[optind++]); 73984778508Sblueswir1 if (qemu_host_page_size == 0 || 74084778508Sblueswir1 (qemu_host_page_size & (qemu_host_page_size - 1)) != 0) { 74184778508Sblueswir1 fprintf(stderr, "page size must be a power of two\n"); 74284778508Sblueswir1 exit(1); 74384778508Sblueswir1 } 74484778508Sblueswir1 } else if (!strcmp(r, "g")) { 74584778508Sblueswir1 gdbstub_port = atoi(argv[optind++]); 74684778508Sblueswir1 } else if (!strcmp(r, "r")) { 74784778508Sblueswir1 qemu_uname_release = argv[optind++]; 74884778508Sblueswir1 } else if (!strcmp(r, "cpu")) { 74984778508Sblueswir1 cpu_model = argv[optind++]; 75084778508Sblueswir1 if (strcmp(cpu_model, "?") == 0) { 75184778508Sblueswir1 /* XXX: implement xxx_cpu_list for targets that still miss it */ 75284778508Sblueswir1 #if defined(cpu_list) 75384778508Sblueswir1 cpu_list(stdout, &fprintf); 75484778508Sblueswir1 #endif 7552d18e637Sblueswir1 exit(1); 75684778508Sblueswir1 } 757*2fa5d9baSBlue Swirl #if defined(CONFIG_USE_GUEST_BASE) 758*2fa5d9baSBlue Swirl } else if (!strcmp(r, "B")) { 759*2fa5d9baSBlue Swirl guest_base = strtol(argv[optind++], NULL, 0); 760*2fa5d9baSBlue Swirl have_guest_base = 1; 761*2fa5d9baSBlue Swirl #endif 76284778508Sblueswir1 } else if (!strcmp(r, "drop-ld-preload")) { 763fc0d96b4SBlue Swirl (void) envlist_unsetenv(envlist, "LD_PRELOAD"); 76484778508Sblueswir1 } else if (!strcmp(r, "bsd")) { 76584778508Sblueswir1 if (!strcasecmp(argv[optind], "freebsd")) { 76684778508Sblueswir1 bsd_type = target_freebsd; 76784778508Sblueswir1 } else if (!strcasecmp(argv[optind], "netbsd")) { 76884778508Sblueswir1 bsd_type = target_netbsd; 76984778508Sblueswir1 } else if (!strcasecmp(argv[optind], "openbsd")) { 77084778508Sblueswir1 bsd_type = target_openbsd; 77184778508Sblueswir1 } else { 77284778508Sblueswir1 usage(); 77384778508Sblueswir1 } 77484778508Sblueswir1 optind++; 7751b530a6dSaurel32 } else if (!strcmp(r, "singlestep")) { 7761b530a6dSaurel32 singlestep = 1; 77784778508Sblueswir1 } else if (!strcmp(r, "strace")) { 77884778508Sblueswir1 do_strace = 1; 77984778508Sblueswir1 } else 78084778508Sblueswir1 { 78184778508Sblueswir1 usage(); 78284778508Sblueswir1 } 78384778508Sblueswir1 } 78484778508Sblueswir1 if (optind >= argc) 78584778508Sblueswir1 usage(); 78684778508Sblueswir1 filename = argv[optind]; 78784778508Sblueswir1 78884778508Sblueswir1 /* Zero out regs */ 78984778508Sblueswir1 memset(regs, 0, sizeof(struct target_pt_regs)); 79084778508Sblueswir1 79184778508Sblueswir1 /* Zero out image_info */ 79284778508Sblueswir1 memset(info, 0, sizeof(struct image_info)); 79384778508Sblueswir1 79484778508Sblueswir1 /* Scan interp_prefix dir for replacement files. */ 79584778508Sblueswir1 init_paths(interp_prefix); 79684778508Sblueswir1 79784778508Sblueswir1 if (cpu_model == NULL) { 79831fc12dfSblueswir1 #if defined(TARGET_I386) 79931fc12dfSblueswir1 #ifdef TARGET_X86_64 80031fc12dfSblueswir1 cpu_model = "qemu64"; 80131fc12dfSblueswir1 #else 80231fc12dfSblueswir1 cpu_model = "qemu32"; 80331fc12dfSblueswir1 #endif 80431fc12dfSblueswir1 #elif defined(TARGET_SPARC) 80584778508Sblueswir1 #ifdef TARGET_SPARC64 80684778508Sblueswir1 cpu_model = "TI UltraSparc II"; 80784778508Sblueswir1 #else 80884778508Sblueswir1 cpu_model = "Fujitsu MB86904"; 80984778508Sblueswir1 #endif 81084778508Sblueswir1 #else 81184778508Sblueswir1 cpu_model = "any"; 81284778508Sblueswir1 #endif 81384778508Sblueswir1 } 81484778508Sblueswir1 cpu_exec_init_all(0); 81584778508Sblueswir1 /* NOTE: we need to init the CPU at this stage to get 81684778508Sblueswir1 qemu_host_page_size */ 81784778508Sblueswir1 env = cpu_init(cpu_model); 81884778508Sblueswir1 if (!env) { 81984778508Sblueswir1 fprintf(stderr, "Unable to find CPU definition\n"); 82084778508Sblueswir1 exit(1); 82184778508Sblueswir1 } 82284778508Sblueswir1 thread_env = env; 82384778508Sblueswir1 82484778508Sblueswir1 if (getenv("QEMU_STRACE")) { 82584778508Sblueswir1 do_strace = 1; 82684778508Sblueswir1 } 82784778508Sblueswir1 828fc0d96b4SBlue Swirl target_environ = envlist_to_environ(envlist, NULL); 829fc0d96b4SBlue Swirl envlist_free(envlist); 83084778508Sblueswir1 831*2fa5d9baSBlue Swirl #if defined(CONFIG_USE_GUEST_BASE) 832*2fa5d9baSBlue Swirl /* 833*2fa5d9baSBlue Swirl * Now that page sizes are configured in cpu_init() we can do 834*2fa5d9baSBlue Swirl * proper page alignment for guest_base. 835*2fa5d9baSBlue Swirl */ 836*2fa5d9baSBlue Swirl guest_base = HOST_PAGE_ALIGN(guest_base); 837*2fa5d9baSBlue Swirl 838*2fa5d9baSBlue Swirl /* 839*2fa5d9baSBlue Swirl * Read in mmap_min_addr kernel parameter. This value is used 840*2fa5d9baSBlue Swirl * When loading the ELF image to determine whether guest_base 841*2fa5d9baSBlue Swirl * is needed. 842*2fa5d9baSBlue Swirl * 843*2fa5d9baSBlue Swirl * When user has explicitly set the quest base, we skip this 844*2fa5d9baSBlue Swirl * test. 845*2fa5d9baSBlue Swirl */ 846*2fa5d9baSBlue Swirl if (!have_guest_base) { 847*2fa5d9baSBlue Swirl FILE *fp; 848*2fa5d9baSBlue Swirl 849*2fa5d9baSBlue Swirl if ((fp = fopen("/proc/sys/vm/mmap_min_addr", "r")) != NULL) { 850*2fa5d9baSBlue Swirl unsigned long tmp; 851*2fa5d9baSBlue Swirl if (fscanf(fp, "%lu", &tmp) == 1) { 852*2fa5d9baSBlue Swirl mmap_min_addr = tmp; 853*2fa5d9baSBlue Swirl qemu_log("host mmap_min_addr=0x%lx\n", mmap_min_addr); 854*2fa5d9baSBlue Swirl } 855*2fa5d9baSBlue Swirl fclose(fp); 856*2fa5d9baSBlue Swirl } 857*2fa5d9baSBlue Swirl } 858*2fa5d9baSBlue Swirl #endif /* CONFIG_USE_GUEST_BASE */ 85984778508Sblueswir1 86084778508Sblueswir1 if (loader_exec(filename, argv+optind, target_environ, regs, info) != 0) { 86184778508Sblueswir1 printf("Error loading %s\n", filename); 86284778508Sblueswir1 _exit(1); 86384778508Sblueswir1 } 86484778508Sblueswir1 86584778508Sblueswir1 for (wrk = target_environ; *wrk; wrk++) { 86684778508Sblueswir1 free(*wrk); 86784778508Sblueswir1 } 86884778508Sblueswir1 86984778508Sblueswir1 free(target_environ); 87084778508Sblueswir1 8712e77eac6Sblueswir1 if (qemu_log_enabled()) { 872*2fa5d9baSBlue Swirl #if defined(CONFIG_USE_GUEST_BASE) 873*2fa5d9baSBlue Swirl qemu_log("guest_base 0x%lx\n", guest_base); 874*2fa5d9baSBlue Swirl #endif 87593fcfe39Saliguori log_page_dump(); 87684778508Sblueswir1 87793fcfe39Saliguori qemu_log("start_brk 0x" TARGET_ABI_FMT_lx "\n", info->start_brk); 87893fcfe39Saliguori qemu_log("end_code 0x" TARGET_ABI_FMT_lx "\n", info->end_code); 87993fcfe39Saliguori qemu_log("start_code 0x" TARGET_ABI_FMT_lx "\n", 88084778508Sblueswir1 info->start_code); 88193fcfe39Saliguori qemu_log("start_data 0x" TARGET_ABI_FMT_lx "\n", 88284778508Sblueswir1 info->start_data); 88393fcfe39Saliguori qemu_log("end_data 0x" TARGET_ABI_FMT_lx "\n", info->end_data); 88493fcfe39Saliguori qemu_log("start_stack 0x" TARGET_ABI_FMT_lx "\n", 88584778508Sblueswir1 info->start_stack); 88693fcfe39Saliguori qemu_log("brk 0x" TARGET_ABI_FMT_lx "\n", info->brk); 88793fcfe39Saliguori qemu_log("entry 0x" TARGET_ABI_FMT_lx "\n", info->entry); 8882e77eac6Sblueswir1 } 88984778508Sblueswir1 89084778508Sblueswir1 target_set_brk(info->brk); 89184778508Sblueswir1 syscall_init(); 89284778508Sblueswir1 signal_init(); 89384778508Sblueswir1 89484778508Sblueswir1 /* build Task State */ 89584778508Sblueswir1 memset(ts, 0, sizeof(TaskState)); 89684778508Sblueswir1 init_task_state(ts); 89784778508Sblueswir1 ts->info = info; 89884778508Sblueswir1 env->opaque = ts; 89984778508Sblueswir1 90031fc12dfSblueswir1 #if defined(TARGET_I386) 90131fc12dfSblueswir1 cpu_x86_set_cpl(env, 3); 90231fc12dfSblueswir1 90331fc12dfSblueswir1 env->cr[0] = CR0_PG_MASK | CR0_WP_MASK | CR0_PE_MASK; 90431fc12dfSblueswir1 env->hflags |= HF_PE_MASK; 90531fc12dfSblueswir1 if (env->cpuid_features & CPUID_SSE) { 90631fc12dfSblueswir1 env->cr[4] |= CR4_OSFXSR_MASK; 90731fc12dfSblueswir1 env->hflags |= HF_OSFXSR_MASK; 90831fc12dfSblueswir1 } 90931fc12dfSblueswir1 #ifndef TARGET_ABI32 91031fc12dfSblueswir1 /* enable 64 bit mode if possible */ 91131fc12dfSblueswir1 if (!(env->cpuid_ext2_features & CPUID_EXT2_LM)) { 91231fc12dfSblueswir1 fprintf(stderr, "The selected x86 CPU does not support 64 bit mode\n"); 91331fc12dfSblueswir1 exit(1); 91431fc12dfSblueswir1 } 91531fc12dfSblueswir1 env->cr[4] |= CR4_PAE_MASK; 91631fc12dfSblueswir1 env->efer |= MSR_EFER_LMA | MSR_EFER_LME; 91731fc12dfSblueswir1 env->hflags |= HF_LMA_MASK; 91831fc12dfSblueswir1 #endif 91931fc12dfSblueswir1 92031fc12dfSblueswir1 /* flags setup : we activate the IRQs by default as in user mode */ 92131fc12dfSblueswir1 env->eflags |= IF_MASK; 92231fc12dfSblueswir1 92331fc12dfSblueswir1 /* linux register setup */ 92431fc12dfSblueswir1 #ifndef TARGET_ABI32 92531fc12dfSblueswir1 env->regs[R_EAX] = regs->rax; 92631fc12dfSblueswir1 env->regs[R_EBX] = regs->rbx; 92731fc12dfSblueswir1 env->regs[R_ECX] = regs->rcx; 92831fc12dfSblueswir1 env->regs[R_EDX] = regs->rdx; 92931fc12dfSblueswir1 env->regs[R_ESI] = regs->rsi; 93031fc12dfSblueswir1 env->regs[R_EDI] = regs->rdi; 93131fc12dfSblueswir1 env->regs[R_EBP] = regs->rbp; 93231fc12dfSblueswir1 env->regs[R_ESP] = regs->rsp; 93331fc12dfSblueswir1 env->eip = regs->rip; 93431fc12dfSblueswir1 #else 93531fc12dfSblueswir1 env->regs[R_EAX] = regs->eax; 93631fc12dfSblueswir1 env->regs[R_EBX] = regs->ebx; 93731fc12dfSblueswir1 env->regs[R_ECX] = regs->ecx; 93831fc12dfSblueswir1 env->regs[R_EDX] = regs->edx; 93931fc12dfSblueswir1 env->regs[R_ESI] = regs->esi; 94031fc12dfSblueswir1 env->regs[R_EDI] = regs->edi; 94131fc12dfSblueswir1 env->regs[R_EBP] = regs->ebp; 94231fc12dfSblueswir1 env->regs[R_ESP] = regs->esp; 94331fc12dfSblueswir1 env->eip = regs->eip; 94431fc12dfSblueswir1 #endif 94531fc12dfSblueswir1 94631fc12dfSblueswir1 /* linux interrupt setup */ 94731fc12dfSblueswir1 #ifndef TARGET_ABI32 94831fc12dfSblueswir1 env->idt.limit = 511; 94931fc12dfSblueswir1 #else 95031fc12dfSblueswir1 env->idt.limit = 255; 95131fc12dfSblueswir1 #endif 95231fc12dfSblueswir1 env->idt.base = target_mmap(0, sizeof(uint64_t) * (env->idt.limit + 1), 95331fc12dfSblueswir1 PROT_READ|PROT_WRITE, 95431fc12dfSblueswir1 MAP_ANONYMOUS|MAP_PRIVATE, -1, 0); 95531fc12dfSblueswir1 idt_table = g2h(env->idt.base); 95631fc12dfSblueswir1 set_idt(0, 0); 95731fc12dfSblueswir1 set_idt(1, 0); 95831fc12dfSblueswir1 set_idt(2, 0); 95931fc12dfSblueswir1 set_idt(3, 3); 96031fc12dfSblueswir1 set_idt(4, 3); 96131fc12dfSblueswir1 set_idt(5, 0); 96231fc12dfSblueswir1 set_idt(6, 0); 96331fc12dfSblueswir1 set_idt(7, 0); 96431fc12dfSblueswir1 set_idt(8, 0); 96531fc12dfSblueswir1 set_idt(9, 0); 96631fc12dfSblueswir1 set_idt(10, 0); 96731fc12dfSblueswir1 set_idt(11, 0); 96831fc12dfSblueswir1 set_idt(12, 0); 96931fc12dfSblueswir1 set_idt(13, 0); 97031fc12dfSblueswir1 set_idt(14, 0); 97131fc12dfSblueswir1 set_idt(15, 0); 97231fc12dfSblueswir1 set_idt(16, 0); 97331fc12dfSblueswir1 set_idt(17, 0); 97431fc12dfSblueswir1 set_idt(18, 0); 97531fc12dfSblueswir1 set_idt(19, 0); 97631fc12dfSblueswir1 set_idt(0x80, 3); 97731fc12dfSblueswir1 97831fc12dfSblueswir1 /* linux segment setup */ 97931fc12dfSblueswir1 { 98031fc12dfSblueswir1 uint64_t *gdt_table; 98131fc12dfSblueswir1 env->gdt.base = target_mmap(0, sizeof(uint64_t) * TARGET_GDT_ENTRIES, 98231fc12dfSblueswir1 PROT_READ|PROT_WRITE, 98331fc12dfSblueswir1 MAP_ANONYMOUS|MAP_PRIVATE, -1, 0); 98431fc12dfSblueswir1 env->gdt.limit = sizeof(uint64_t) * TARGET_GDT_ENTRIES - 1; 98531fc12dfSblueswir1 gdt_table = g2h(env->gdt.base); 98631fc12dfSblueswir1 #ifdef TARGET_ABI32 98731fc12dfSblueswir1 write_dt(&gdt_table[__USER_CS >> 3], 0, 0xfffff, 98831fc12dfSblueswir1 DESC_G_MASK | DESC_B_MASK | DESC_P_MASK | DESC_S_MASK | 98931fc12dfSblueswir1 (3 << DESC_DPL_SHIFT) | (0xa << DESC_TYPE_SHIFT)); 99031fc12dfSblueswir1 #else 99131fc12dfSblueswir1 /* 64 bit code segment */ 99231fc12dfSblueswir1 write_dt(&gdt_table[__USER_CS >> 3], 0, 0xfffff, 99331fc12dfSblueswir1 DESC_G_MASK | DESC_B_MASK | DESC_P_MASK | DESC_S_MASK | 99431fc12dfSblueswir1 DESC_L_MASK | 99531fc12dfSblueswir1 (3 << DESC_DPL_SHIFT) | (0xa << DESC_TYPE_SHIFT)); 99631fc12dfSblueswir1 #endif 99731fc12dfSblueswir1 write_dt(&gdt_table[__USER_DS >> 3], 0, 0xfffff, 99831fc12dfSblueswir1 DESC_G_MASK | DESC_B_MASK | DESC_P_MASK | DESC_S_MASK | 99931fc12dfSblueswir1 (3 << DESC_DPL_SHIFT) | (0x2 << DESC_TYPE_SHIFT)); 100031fc12dfSblueswir1 } 100131fc12dfSblueswir1 100231fc12dfSblueswir1 cpu_x86_load_seg(env, R_CS, __USER_CS); 100331fc12dfSblueswir1 cpu_x86_load_seg(env, R_SS, __USER_DS); 100431fc12dfSblueswir1 #ifdef TARGET_ABI32 100531fc12dfSblueswir1 cpu_x86_load_seg(env, R_DS, __USER_DS); 100631fc12dfSblueswir1 cpu_x86_load_seg(env, R_ES, __USER_DS); 100731fc12dfSblueswir1 cpu_x86_load_seg(env, R_FS, __USER_DS); 100831fc12dfSblueswir1 cpu_x86_load_seg(env, R_GS, __USER_DS); 100931fc12dfSblueswir1 /* This hack makes Wine work... */ 101031fc12dfSblueswir1 env->segs[R_FS].selector = 0; 101131fc12dfSblueswir1 #else 101231fc12dfSblueswir1 cpu_x86_load_seg(env, R_DS, 0); 101331fc12dfSblueswir1 cpu_x86_load_seg(env, R_ES, 0); 101431fc12dfSblueswir1 cpu_x86_load_seg(env, R_FS, 0); 101531fc12dfSblueswir1 cpu_x86_load_seg(env, R_GS, 0); 101631fc12dfSblueswir1 #endif 101731fc12dfSblueswir1 #elif defined(TARGET_SPARC) 101884778508Sblueswir1 { 101984778508Sblueswir1 int i; 102084778508Sblueswir1 env->pc = regs->pc; 102184778508Sblueswir1 env->npc = regs->npc; 102284778508Sblueswir1 env->y = regs->y; 102384778508Sblueswir1 for(i = 0; i < 8; i++) 102484778508Sblueswir1 env->gregs[i] = regs->u_regs[i]; 102584778508Sblueswir1 for(i = 0; i < 8; i++) 102684778508Sblueswir1 env->regwptr[i] = regs->u_regs[i + 8]; 102784778508Sblueswir1 } 102884778508Sblueswir1 #else 102984778508Sblueswir1 #error unsupported target CPU 103084778508Sblueswir1 #endif 103184778508Sblueswir1 103284778508Sblueswir1 if (gdbstub_port) { 103384778508Sblueswir1 gdbserver_start (gdbstub_port); 103484778508Sblueswir1 gdb_handlesig(env, 0); 103584778508Sblueswir1 } 103684778508Sblueswir1 cpu_loop(env, bsd_type); 103784778508Sblueswir1 /* never exits */ 103884778508Sblueswir1 return 0; 103984778508Sblueswir1 } 1040