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 1784778508Sblueswir1 * along with this program; if not, write to the Free Software 18530e7615Sblueswir1 * Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, 19530e7615Sblueswir1 * MA 02110-1301, USA. 2084778508Sblueswir1 */ 2184778508Sblueswir1 #include <stdlib.h> 2284778508Sblueswir1 #include <stdio.h> 2384778508Sblueswir1 #include <stdarg.h> 2484778508Sblueswir1 #include <string.h> 2584778508Sblueswir1 #include <errno.h> 2684778508Sblueswir1 #include <unistd.h> 2784778508Sblueswir1 #include <machine/trap.h> 2884778508Sblueswir1 2984778508Sblueswir1 #include "qemu.h" 3084778508Sblueswir1 #include "qemu-common.h" 3184778508Sblueswir1 /* For tb_lock */ 3284778508Sblueswir1 #include "exec-all.h" 3384778508Sblueswir1 3484778508Sblueswir1 #define DEBUG_LOGFILE "/tmp/qemu.log" 3584778508Sblueswir1 3684778508Sblueswir1 static const char *interp_prefix = CONFIG_QEMU_PREFIX; 3784778508Sblueswir1 const char *qemu_uname_release = CONFIG_UNAME_RELEASE; 3884778508Sblueswir1 extern char **environ; 3984778508Sblueswir1 4084778508Sblueswir1 /* XXX: on x86 MAP_GROWSDOWN only works if ESP <= address + 32, so 4184778508Sblueswir1 we allocate a bigger stack. Need a better solution, for example 4284778508Sblueswir1 by remapping the process stack directly at the right place */ 4384778508Sblueswir1 unsigned long x86_stack_size = 512 * 1024; 4484778508Sblueswir1 4584778508Sblueswir1 void gemu_log(const char *fmt, ...) 4684778508Sblueswir1 { 4784778508Sblueswir1 va_list ap; 4884778508Sblueswir1 4984778508Sblueswir1 va_start(ap, fmt); 5084778508Sblueswir1 vfprintf(stderr, fmt, ap); 5184778508Sblueswir1 va_end(ap); 5284778508Sblueswir1 } 5384778508Sblueswir1 #ifdef TARGET_SPARC 5484778508Sblueswir1 #define SPARC64_STACK_BIAS 2047 5584778508Sblueswir1 5684778508Sblueswir1 //#define DEBUG_WIN 5784778508Sblueswir1 /* WARNING: dealing with register windows _is_ complicated. More info 5884778508Sblueswir1 can be found at http://www.sics.se/~psm/sparcstack.html */ 5984778508Sblueswir1 static inline int get_reg_index(CPUSPARCState *env, int cwp, int index) 6084778508Sblueswir1 { 6184778508Sblueswir1 index = (index + cwp * 16) % (16 * env->nwindows); 6284778508Sblueswir1 /* wrap handling : if cwp is on the last window, then we use the 6384778508Sblueswir1 registers 'after' the end */ 6484778508Sblueswir1 if (index < 8 && env->cwp == env->nwindows - 1) 6584778508Sblueswir1 index += 16 * env->nwindows; 6684778508Sblueswir1 return index; 6784778508Sblueswir1 } 6884778508Sblueswir1 6984778508Sblueswir1 /* save the register window 'cwp1' */ 7084778508Sblueswir1 static inline void save_window_offset(CPUSPARCState *env, int cwp1) 7184778508Sblueswir1 { 7284778508Sblueswir1 unsigned int i; 7384778508Sblueswir1 abi_ulong sp_ptr; 7484778508Sblueswir1 7584778508Sblueswir1 sp_ptr = env->regbase[get_reg_index(env, cwp1, 6)]; 7684778508Sblueswir1 #ifdef TARGET_SPARC64 7784778508Sblueswir1 if (sp_ptr & 3) 7884778508Sblueswir1 sp_ptr += SPARC64_STACK_BIAS; 7984778508Sblueswir1 #endif 8084778508Sblueswir1 #if defined(DEBUG_WIN) 8184778508Sblueswir1 printf("win_overflow: sp_ptr=0x" TARGET_ABI_FMT_lx " save_cwp=%d\n", 8284778508Sblueswir1 sp_ptr, cwp1); 8384778508Sblueswir1 #endif 8484778508Sblueswir1 for(i = 0; i < 16; i++) { 8584778508Sblueswir1 /* FIXME - what to do if put_user() fails? */ 8684778508Sblueswir1 put_user_ual(env->regbase[get_reg_index(env, cwp1, 8 + i)], sp_ptr); 8784778508Sblueswir1 sp_ptr += sizeof(abi_ulong); 8884778508Sblueswir1 } 8984778508Sblueswir1 } 9084778508Sblueswir1 9184778508Sblueswir1 static void save_window(CPUSPARCState *env) 9284778508Sblueswir1 { 9384778508Sblueswir1 #ifndef TARGET_SPARC64 9484778508Sblueswir1 unsigned int new_wim; 9584778508Sblueswir1 new_wim = ((env->wim >> 1) | (env->wim << (env->nwindows - 1))) & 9684778508Sblueswir1 ((1LL << env->nwindows) - 1); 9784778508Sblueswir1 save_window_offset(env, cpu_cwp_dec(env, env->cwp - 2)); 9884778508Sblueswir1 env->wim = new_wim; 9984778508Sblueswir1 #else 10084778508Sblueswir1 save_window_offset(env, cpu_cwp_dec(env, env->cwp - 2)); 10184778508Sblueswir1 env->cansave++; 10284778508Sblueswir1 env->canrestore--; 10384778508Sblueswir1 #endif 10484778508Sblueswir1 } 10584778508Sblueswir1 10684778508Sblueswir1 static void restore_window(CPUSPARCState *env) 10784778508Sblueswir1 { 10884778508Sblueswir1 #ifndef TARGET_SPARC64 10984778508Sblueswir1 unsigned int new_wim; 11084778508Sblueswir1 #endif 11184778508Sblueswir1 unsigned int i, cwp1; 11284778508Sblueswir1 abi_ulong sp_ptr; 11384778508Sblueswir1 11484778508Sblueswir1 #ifndef TARGET_SPARC64 11584778508Sblueswir1 new_wim = ((env->wim << 1) | (env->wim >> (env->nwindows - 1))) & 11684778508Sblueswir1 ((1LL << env->nwindows) - 1); 11784778508Sblueswir1 #endif 11884778508Sblueswir1 11984778508Sblueswir1 /* restore the invalid window */ 12084778508Sblueswir1 cwp1 = cpu_cwp_inc(env, env->cwp + 1); 12184778508Sblueswir1 sp_ptr = env->regbase[get_reg_index(env, cwp1, 6)]; 12284778508Sblueswir1 #ifdef TARGET_SPARC64 12384778508Sblueswir1 if (sp_ptr & 3) 12484778508Sblueswir1 sp_ptr += SPARC64_STACK_BIAS; 12584778508Sblueswir1 #endif 12684778508Sblueswir1 #if defined(DEBUG_WIN) 12784778508Sblueswir1 printf("win_underflow: sp_ptr=0x" TARGET_ABI_FMT_lx " load_cwp=%d\n", 12884778508Sblueswir1 sp_ptr, cwp1); 12984778508Sblueswir1 #endif 13084778508Sblueswir1 for(i = 0; i < 16; i++) { 13184778508Sblueswir1 /* FIXME - what to do if get_user() fails? */ 13284778508Sblueswir1 get_user_ual(env->regbase[get_reg_index(env, cwp1, 8 + i)], sp_ptr); 13384778508Sblueswir1 sp_ptr += sizeof(abi_ulong); 13484778508Sblueswir1 } 13584778508Sblueswir1 #ifdef TARGET_SPARC64 13684778508Sblueswir1 env->canrestore++; 13784778508Sblueswir1 if (env->cleanwin < env->nwindows - 1) 13884778508Sblueswir1 env->cleanwin++; 13984778508Sblueswir1 env->cansave--; 14084778508Sblueswir1 #else 14184778508Sblueswir1 env->wim = new_wim; 14284778508Sblueswir1 #endif 14384778508Sblueswir1 } 14484778508Sblueswir1 14584778508Sblueswir1 static void flush_windows(CPUSPARCState *env) 14684778508Sblueswir1 { 14784778508Sblueswir1 int offset, cwp1; 14884778508Sblueswir1 14984778508Sblueswir1 offset = 1; 15084778508Sblueswir1 for(;;) { 15184778508Sblueswir1 /* if restore would invoke restore_window(), then we can stop */ 15284778508Sblueswir1 cwp1 = cpu_cwp_inc(env, env->cwp + offset); 15384778508Sblueswir1 #ifndef TARGET_SPARC64 15484778508Sblueswir1 if (env->wim & (1 << cwp1)) 15584778508Sblueswir1 break; 15684778508Sblueswir1 #else 15784778508Sblueswir1 if (env->canrestore == 0) 15884778508Sblueswir1 break; 15984778508Sblueswir1 env->cansave++; 16084778508Sblueswir1 env->canrestore--; 16184778508Sblueswir1 #endif 16284778508Sblueswir1 save_window_offset(env, cwp1); 16384778508Sblueswir1 offset++; 16484778508Sblueswir1 } 16584778508Sblueswir1 cwp1 = cpu_cwp_inc(env, env->cwp + 1); 16684778508Sblueswir1 #ifndef TARGET_SPARC64 16784778508Sblueswir1 /* set wim so that restore will reload the registers */ 16884778508Sblueswir1 env->wim = 1 << cwp1; 16984778508Sblueswir1 #endif 17084778508Sblueswir1 #if defined(DEBUG_WIN) 17184778508Sblueswir1 printf("flush_windows: nb=%d\n", offset - 1); 17284778508Sblueswir1 #endif 17384778508Sblueswir1 } 17484778508Sblueswir1 17584778508Sblueswir1 void cpu_loop(CPUSPARCState *env, enum BSDType bsd_type) 17684778508Sblueswir1 { 17784778508Sblueswir1 int trapnr, ret, syscall_nr; 17884778508Sblueswir1 //target_siginfo_t info; 17984778508Sblueswir1 18084778508Sblueswir1 while (1) { 18184778508Sblueswir1 trapnr = cpu_sparc_exec (env); 18284778508Sblueswir1 18384778508Sblueswir1 switch (trapnr) { 18477b9435fSblueswir1 #ifndef TARGET_SPARC64 18577b9435fSblueswir1 case 0x80: 18677b9435fSblueswir1 #else 18784778508Sblueswir1 case 0x100: 18877b9435fSblueswir1 #endif 18984778508Sblueswir1 syscall_nr = env->gregs[1]; 19084778508Sblueswir1 if (bsd_type == target_freebsd) 19184778508Sblueswir1 ret = do_freebsd_syscall(env, syscall_nr, 19284778508Sblueswir1 env->regwptr[0], env->regwptr[1], 19384778508Sblueswir1 env->regwptr[2], env->regwptr[3], 19484778508Sblueswir1 env->regwptr[4], env->regwptr[5]); 19584778508Sblueswir1 else if (bsd_type == target_netbsd) 19684778508Sblueswir1 ret = do_netbsd_syscall(env, syscall_nr, 19784778508Sblueswir1 env->regwptr[0], env->regwptr[1], 19884778508Sblueswir1 env->regwptr[2], env->regwptr[3], 19984778508Sblueswir1 env->regwptr[4], env->regwptr[5]); 200cdba95bdSblueswir1 else { //if (bsd_type == target_openbsd) 201cdba95bdSblueswir1 #if defined(TARGET_SPARC64) 202cdba95bdSblueswir1 syscall_nr &= ~(TARGET_OPENBSD_SYSCALL_G7RFLAG | 203cdba95bdSblueswir1 TARGET_OPENBSD_SYSCALL_G2RFLAG); 204cdba95bdSblueswir1 #endif 20584778508Sblueswir1 ret = do_openbsd_syscall(env, syscall_nr, 20684778508Sblueswir1 env->regwptr[0], env->regwptr[1], 20784778508Sblueswir1 env->regwptr[2], env->regwptr[3], 20884778508Sblueswir1 env->regwptr[4], env->regwptr[5]); 209cdba95bdSblueswir1 } 21084778508Sblueswir1 if ((unsigned int)ret >= (unsigned int)(-515)) { 21184778508Sblueswir1 #if defined(TARGET_SPARC64) && !defined(TARGET_ABI32) 21284778508Sblueswir1 env->xcc |= PSR_CARRY; 21384778508Sblueswir1 #else 21484778508Sblueswir1 env->psr |= PSR_CARRY; 21584778508Sblueswir1 #endif 21684778508Sblueswir1 } else { 21784778508Sblueswir1 #if defined(TARGET_SPARC64) && !defined(TARGET_ABI32) 21884778508Sblueswir1 env->xcc &= ~PSR_CARRY; 21984778508Sblueswir1 #else 22084778508Sblueswir1 env->psr &= ~PSR_CARRY; 22184778508Sblueswir1 #endif 22284778508Sblueswir1 } 22384778508Sblueswir1 env->regwptr[0] = ret; 22484778508Sblueswir1 /* next instruction */ 225cdba95bdSblueswir1 #if defined(TARGET_SPARC64) 226cdba95bdSblueswir1 if (bsd_type == target_openbsd && 227cdba95bdSblueswir1 env->gregs[1] & TARGET_OPENBSD_SYSCALL_G2RFLAG) { 22884778508Sblueswir1 env->pc = env->gregs[2]; 22984778508Sblueswir1 env->npc = env->pc + 4; 230cdba95bdSblueswir1 } else if (bsd_type == target_openbsd && 231cdba95bdSblueswir1 env->gregs[1] & TARGET_OPENBSD_SYSCALL_G7RFLAG) { 23284778508Sblueswir1 env->pc = env->gregs[7]; 23384778508Sblueswir1 env->npc = env->pc + 4; 23484778508Sblueswir1 } else { 23584778508Sblueswir1 env->pc = env->npc; 23684778508Sblueswir1 env->npc = env->npc + 4; 23784778508Sblueswir1 } 23884778508Sblueswir1 #else 23984778508Sblueswir1 env->pc = env->npc; 24084778508Sblueswir1 env->npc = env->npc + 4; 24184778508Sblueswir1 #endif 24284778508Sblueswir1 break; 24384778508Sblueswir1 case 0x83: /* flush windows */ 24484778508Sblueswir1 #ifdef TARGET_ABI32 24584778508Sblueswir1 case 0x103: 24684778508Sblueswir1 #endif 24784778508Sblueswir1 flush_windows(env); 24884778508Sblueswir1 /* next instruction */ 24984778508Sblueswir1 env->pc = env->npc; 25084778508Sblueswir1 env->npc = env->npc + 4; 25184778508Sblueswir1 break; 25284778508Sblueswir1 #ifndef TARGET_SPARC64 25384778508Sblueswir1 case TT_WIN_OVF: /* window overflow */ 25484778508Sblueswir1 save_window(env); 25584778508Sblueswir1 break; 25684778508Sblueswir1 case TT_WIN_UNF: /* window underflow */ 25784778508Sblueswir1 restore_window(env); 25884778508Sblueswir1 break; 25984778508Sblueswir1 case TT_TFAULT: 26084778508Sblueswir1 case TT_DFAULT: 26184778508Sblueswir1 #if 0 26284778508Sblueswir1 { 26384778508Sblueswir1 info.si_signo = SIGSEGV; 26484778508Sblueswir1 info.si_errno = 0; 26584778508Sblueswir1 /* XXX: check env->error_code */ 26684778508Sblueswir1 info.si_code = TARGET_SEGV_MAPERR; 26784778508Sblueswir1 info._sifields._sigfault._addr = env->mmuregs[4]; 26884778508Sblueswir1 queue_signal(env, info.si_signo, &info); 26984778508Sblueswir1 } 27084778508Sblueswir1 #endif 27184778508Sblueswir1 break; 27284778508Sblueswir1 #else 27384778508Sblueswir1 case TT_SPILL: /* window overflow */ 27484778508Sblueswir1 save_window(env); 27584778508Sblueswir1 break; 27684778508Sblueswir1 case TT_FILL: /* window underflow */ 27784778508Sblueswir1 restore_window(env); 27884778508Sblueswir1 break; 27984778508Sblueswir1 case TT_TFAULT: 28084778508Sblueswir1 case TT_DFAULT: 28184778508Sblueswir1 #if 0 28284778508Sblueswir1 { 28384778508Sblueswir1 info.si_signo = SIGSEGV; 28484778508Sblueswir1 info.si_errno = 0; 28584778508Sblueswir1 /* XXX: check env->error_code */ 28684778508Sblueswir1 info.si_code = TARGET_SEGV_MAPERR; 28784778508Sblueswir1 if (trapnr == TT_DFAULT) 28884778508Sblueswir1 info._sifields._sigfault._addr = env->dmmuregs[4]; 28984778508Sblueswir1 else 29084778508Sblueswir1 info._sifields._sigfault._addr = env->tsptr->tpc; 29184778508Sblueswir1 //queue_signal(env, info.si_signo, &info); 29284778508Sblueswir1 } 29384778508Sblueswir1 #endif 29484778508Sblueswir1 break; 29584778508Sblueswir1 #endif 29684778508Sblueswir1 case EXCP_INTERRUPT: 29784778508Sblueswir1 /* just indicate that signals should be handled asap */ 29884778508Sblueswir1 break; 29984778508Sblueswir1 case EXCP_DEBUG: 30084778508Sblueswir1 { 30184778508Sblueswir1 int sig; 30284778508Sblueswir1 30384778508Sblueswir1 sig = gdb_handlesig (env, TARGET_SIGTRAP); 30484778508Sblueswir1 #if 0 30584778508Sblueswir1 if (sig) 30684778508Sblueswir1 { 30784778508Sblueswir1 info.si_signo = sig; 30884778508Sblueswir1 info.si_errno = 0; 30984778508Sblueswir1 info.si_code = TARGET_TRAP_BRKPT; 31084778508Sblueswir1 //queue_signal(env, info.si_signo, &info); 31184778508Sblueswir1 } 31284778508Sblueswir1 #endif 31384778508Sblueswir1 } 31484778508Sblueswir1 break; 31584778508Sblueswir1 default: 31684778508Sblueswir1 printf ("Unhandled trap: 0x%x\n", trapnr); 31784778508Sblueswir1 cpu_dump_state(env, stderr, fprintf, 0); 31884778508Sblueswir1 exit (1); 31984778508Sblueswir1 } 32084778508Sblueswir1 process_pending_signals (env); 32184778508Sblueswir1 } 32284778508Sblueswir1 } 32384778508Sblueswir1 32484778508Sblueswir1 #endif 32584778508Sblueswir1 32684778508Sblueswir1 static void usage(void) 32784778508Sblueswir1 { 32884778508Sblueswir1 printf("qemu-" TARGET_ARCH " version " QEMU_VERSION ", Copyright (c) 2003-2008 Fabrice Bellard\n" 32984778508Sblueswir1 "usage: qemu-" TARGET_ARCH " [options] program [arguments...]\n" 33084778508Sblueswir1 "BSD CPU emulator (compiled for %s emulation)\n" 33184778508Sblueswir1 "\n" 33284778508Sblueswir1 "Standard options:\n" 33384778508Sblueswir1 "-h print this help\n" 33484778508Sblueswir1 "-g port wait gdb connection to port\n" 33584778508Sblueswir1 "-L path set the elf interpreter prefix (default=%s)\n" 33684778508Sblueswir1 "-s size set the stack size in bytes (default=%ld)\n" 33784778508Sblueswir1 "-cpu model select CPU (-cpu ? for list)\n" 33884778508Sblueswir1 "-drop-ld-preload drop LD_PRELOAD for target process\n" 33984778508Sblueswir1 "-bsd type select emulated BSD type FreeBSD/NetBSD/OpenBSD (default)\n" 34084778508Sblueswir1 "\n" 34184778508Sblueswir1 "Debug options:\n" 34284778508Sblueswir1 "-d options activate log (logfile=%s)\n" 34384778508Sblueswir1 "-p pagesize set the host page size to 'pagesize'\n" 34484778508Sblueswir1 "-strace log system calls\n" 34584778508Sblueswir1 "\n" 34684778508Sblueswir1 "Environment variables:\n" 34784778508Sblueswir1 "QEMU_STRACE Print system calls and arguments similar to the\n" 34884778508Sblueswir1 " 'strace' program. Enable by setting to any value.\n" 34984778508Sblueswir1 , 35084778508Sblueswir1 TARGET_ARCH, 35184778508Sblueswir1 interp_prefix, 35284778508Sblueswir1 x86_stack_size, 35384778508Sblueswir1 DEBUG_LOGFILE); 354*2d18e637Sblueswir1 exit(1); 35584778508Sblueswir1 } 35684778508Sblueswir1 35784778508Sblueswir1 THREAD CPUState *thread_env; 35884778508Sblueswir1 35984778508Sblueswir1 /* Assumes contents are already zeroed. */ 36084778508Sblueswir1 void init_task_state(TaskState *ts) 36184778508Sblueswir1 { 36284778508Sblueswir1 int i; 36384778508Sblueswir1 36484778508Sblueswir1 ts->used = 1; 36584778508Sblueswir1 ts->first_free = ts->sigqueue_table; 36684778508Sblueswir1 for (i = 0; i < MAX_SIGQUEUE_SIZE - 1; i++) { 36784778508Sblueswir1 ts->sigqueue_table[i].next = &ts->sigqueue_table[i + 1]; 36884778508Sblueswir1 } 36984778508Sblueswir1 ts->sigqueue_table[i].next = NULL; 37084778508Sblueswir1 } 37184778508Sblueswir1 37284778508Sblueswir1 int main(int argc, char **argv) 37384778508Sblueswir1 { 37484778508Sblueswir1 const char *filename; 37584778508Sblueswir1 const char *cpu_model; 37684778508Sblueswir1 struct target_pt_regs regs1, *regs = ®s1; 37784778508Sblueswir1 struct image_info info1, *info = &info1; 37884778508Sblueswir1 TaskState ts1, *ts = &ts1; 37984778508Sblueswir1 CPUState *env; 38084778508Sblueswir1 int optind; 38184778508Sblueswir1 const char *r; 38284778508Sblueswir1 int gdbstub_port = 0; 38384778508Sblueswir1 int drop_ld_preload = 0, environ_count = 0; 38484778508Sblueswir1 char **target_environ, **wrk, **dst; 38584778508Sblueswir1 enum BSDType bsd_type = target_openbsd; 38684778508Sblueswir1 38784778508Sblueswir1 if (argc <= 1) 38884778508Sblueswir1 usage(); 38984778508Sblueswir1 39084778508Sblueswir1 /* init debug */ 39184778508Sblueswir1 cpu_set_log_filename(DEBUG_LOGFILE); 39284778508Sblueswir1 39384778508Sblueswir1 cpu_model = NULL; 39484778508Sblueswir1 optind = 1; 39584778508Sblueswir1 for(;;) { 39684778508Sblueswir1 if (optind >= argc) 39784778508Sblueswir1 break; 39884778508Sblueswir1 r = argv[optind]; 39984778508Sblueswir1 if (r[0] != '-') 40084778508Sblueswir1 break; 40184778508Sblueswir1 optind++; 40284778508Sblueswir1 r++; 40384778508Sblueswir1 if (!strcmp(r, "-")) { 40484778508Sblueswir1 break; 40584778508Sblueswir1 } else if (!strcmp(r, "d")) { 40684778508Sblueswir1 int mask; 40784778508Sblueswir1 const CPULogItem *item; 40884778508Sblueswir1 40984778508Sblueswir1 if (optind >= argc) 41084778508Sblueswir1 break; 41184778508Sblueswir1 41284778508Sblueswir1 r = argv[optind++]; 41384778508Sblueswir1 mask = cpu_str_to_log_mask(r); 41484778508Sblueswir1 if (!mask) { 41584778508Sblueswir1 printf("Log items (comma separated):\n"); 41684778508Sblueswir1 for(item = cpu_log_items; item->mask != 0; item++) { 41784778508Sblueswir1 printf("%-10s %s\n", item->name, item->help); 41884778508Sblueswir1 } 41984778508Sblueswir1 exit(1); 42084778508Sblueswir1 } 42184778508Sblueswir1 cpu_set_log(mask); 42284778508Sblueswir1 } else if (!strcmp(r, "s")) { 42384778508Sblueswir1 r = argv[optind++]; 42484778508Sblueswir1 x86_stack_size = strtol(r, (char **)&r, 0); 42584778508Sblueswir1 if (x86_stack_size <= 0) 42684778508Sblueswir1 usage(); 42784778508Sblueswir1 if (*r == 'M') 42884778508Sblueswir1 x86_stack_size *= 1024 * 1024; 42984778508Sblueswir1 else if (*r == 'k' || *r == 'K') 43084778508Sblueswir1 x86_stack_size *= 1024; 43184778508Sblueswir1 } else if (!strcmp(r, "L")) { 43284778508Sblueswir1 interp_prefix = argv[optind++]; 43384778508Sblueswir1 } else if (!strcmp(r, "p")) { 43484778508Sblueswir1 qemu_host_page_size = atoi(argv[optind++]); 43584778508Sblueswir1 if (qemu_host_page_size == 0 || 43684778508Sblueswir1 (qemu_host_page_size & (qemu_host_page_size - 1)) != 0) { 43784778508Sblueswir1 fprintf(stderr, "page size must be a power of two\n"); 43884778508Sblueswir1 exit(1); 43984778508Sblueswir1 } 44084778508Sblueswir1 } else if (!strcmp(r, "g")) { 44184778508Sblueswir1 gdbstub_port = atoi(argv[optind++]); 44284778508Sblueswir1 } else if (!strcmp(r, "r")) { 44384778508Sblueswir1 qemu_uname_release = argv[optind++]; 44484778508Sblueswir1 } else if (!strcmp(r, "cpu")) { 44584778508Sblueswir1 cpu_model = argv[optind++]; 44684778508Sblueswir1 if (strcmp(cpu_model, "?") == 0) { 44784778508Sblueswir1 /* XXX: implement xxx_cpu_list for targets that still miss it */ 44884778508Sblueswir1 #if defined(cpu_list) 44984778508Sblueswir1 cpu_list(stdout, &fprintf); 45084778508Sblueswir1 #endif 451*2d18e637Sblueswir1 exit(1); 45284778508Sblueswir1 } 45384778508Sblueswir1 } else if (!strcmp(r, "drop-ld-preload")) { 45484778508Sblueswir1 drop_ld_preload = 1; 45584778508Sblueswir1 } else if (!strcmp(r, "bsd")) { 45684778508Sblueswir1 if (!strcasecmp(argv[optind], "freebsd")) { 45784778508Sblueswir1 bsd_type = target_freebsd; 45884778508Sblueswir1 } else if (!strcasecmp(argv[optind], "netbsd")) { 45984778508Sblueswir1 bsd_type = target_netbsd; 46084778508Sblueswir1 } else if (!strcasecmp(argv[optind], "openbsd")) { 46184778508Sblueswir1 bsd_type = target_openbsd; 46284778508Sblueswir1 } else { 46384778508Sblueswir1 usage(); 46484778508Sblueswir1 } 46584778508Sblueswir1 optind++; 46684778508Sblueswir1 } else if (!strcmp(r, "strace")) { 46784778508Sblueswir1 do_strace = 1; 46884778508Sblueswir1 } else 46984778508Sblueswir1 { 47084778508Sblueswir1 usage(); 47184778508Sblueswir1 } 47284778508Sblueswir1 } 47384778508Sblueswir1 if (optind >= argc) 47484778508Sblueswir1 usage(); 47584778508Sblueswir1 filename = argv[optind]; 47684778508Sblueswir1 47784778508Sblueswir1 /* Zero out regs */ 47884778508Sblueswir1 memset(regs, 0, sizeof(struct target_pt_regs)); 47984778508Sblueswir1 48084778508Sblueswir1 /* Zero out image_info */ 48184778508Sblueswir1 memset(info, 0, sizeof(struct image_info)); 48284778508Sblueswir1 48384778508Sblueswir1 /* Scan interp_prefix dir for replacement files. */ 48484778508Sblueswir1 init_paths(interp_prefix); 48584778508Sblueswir1 48684778508Sblueswir1 if (cpu_model == NULL) { 48784778508Sblueswir1 #if defined(TARGET_SPARC) 48884778508Sblueswir1 #ifdef TARGET_SPARC64 48984778508Sblueswir1 cpu_model = "TI UltraSparc II"; 49084778508Sblueswir1 #else 49184778508Sblueswir1 cpu_model = "Fujitsu MB86904"; 49284778508Sblueswir1 #endif 49384778508Sblueswir1 #else 49484778508Sblueswir1 cpu_model = "any"; 49584778508Sblueswir1 #endif 49684778508Sblueswir1 } 49784778508Sblueswir1 cpu_exec_init_all(0); 49884778508Sblueswir1 /* NOTE: we need to init the CPU at this stage to get 49984778508Sblueswir1 qemu_host_page_size */ 50084778508Sblueswir1 env = cpu_init(cpu_model); 50184778508Sblueswir1 if (!env) { 50284778508Sblueswir1 fprintf(stderr, "Unable to find CPU definition\n"); 50384778508Sblueswir1 exit(1); 50484778508Sblueswir1 } 50584778508Sblueswir1 thread_env = env; 50684778508Sblueswir1 50784778508Sblueswir1 if (getenv("QEMU_STRACE")) { 50884778508Sblueswir1 do_strace = 1; 50984778508Sblueswir1 } 51084778508Sblueswir1 51184778508Sblueswir1 wrk = environ; 51284778508Sblueswir1 while (*(wrk++)) 51384778508Sblueswir1 environ_count++; 51484778508Sblueswir1 51584778508Sblueswir1 target_environ = malloc((environ_count + 1) * sizeof(char *)); 51684778508Sblueswir1 if (!target_environ) 51784778508Sblueswir1 abort(); 51884778508Sblueswir1 for (wrk = environ, dst = target_environ; *wrk; wrk++) { 51984778508Sblueswir1 if (drop_ld_preload && !strncmp(*wrk, "LD_PRELOAD=", 11)) 52084778508Sblueswir1 continue; 52184778508Sblueswir1 *(dst++) = strdup(*wrk); 52284778508Sblueswir1 } 52384778508Sblueswir1 *dst = NULL; /* NULL terminate target_environ */ 52484778508Sblueswir1 52584778508Sblueswir1 if (loader_exec(filename, argv+optind, target_environ, regs, info) != 0) { 52684778508Sblueswir1 printf("Error loading %s\n", filename); 52784778508Sblueswir1 _exit(1); 52884778508Sblueswir1 } 52984778508Sblueswir1 53084778508Sblueswir1 for (wrk = target_environ; *wrk; wrk++) { 53184778508Sblueswir1 free(*wrk); 53284778508Sblueswir1 } 53384778508Sblueswir1 53484778508Sblueswir1 free(target_environ); 53584778508Sblueswir1 5362e77eac6Sblueswir1 if (qemu_log_enabled()) { 53793fcfe39Saliguori log_page_dump(); 53884778508Sblueswir1 53993fcfe39Saliguori qemu_log("start_brk 0x" TARGET_ABI_FMT_lx "\n", info->start_brk); 54093fcfe39Saliguori qemu_log("end_code 0x" TARGET_ABI_FMT_lx "\n", info->end_code); 54193fcfe39Saliguori qemu_log("start_code 0x" TARGET_ABI_FMT_lx "\n", 54284778508Sblueswir1 info->start_code); 54393fcfe39Saliguori qemu_log("start_data 0x" TARGET_ABI_FMT_lx "\n", 54484778508Sblueswir1 info->start_data); 54593fcfe39Saliguori qemu_log("end_data 0x" TARGET_ABI_FMT_lx "\n", info->end_data); 54693fcfe39Saliguori qemu_log("start_stack 0x" TARGET_ABI_FMT_lx "\n", 54784778508Sblueswir1 info->start_stack); 54893fcfe39Saliguori qemu_log("brk 0x" TARGET_ABI_FMT_lx "\n", info->brk); 54993fcfe39Saliguori qemu_log("entry 0x" TARGET_ABI_FMT_lx "\n", info->entry); 5502e77eac6Sblueswir1 } 55184778508Sblueswir1 55284778508Sblueswir1 target_set_brk(info->brk); 55384778508Sblueswir1 syscall_init(); 55484778508Sblueswir1 signal_init(); 55584778508Sblueswir1 55684778508Sblueswir1 /* build Task State */ 55784778508Sblueswir1 memset(ts, 0, sizeof(TaskState)); 55884778508Sblueswir1 init_task_state(ts); 55984778508Sblueswir1 ts->info = info; 56084778508Sblueswir1 env->opaque = ts; 56184778508Sblueswir1 56284778508Sblueswir1 #if defined(TARGET_SPARC) 56384778508Sblueswir1 { 56484778508Sblueswir1 int i; 56584778508Sblueswir1 env->pc = regs->pc; 56684778508Sblueswir1 env->npc = regs->npc; 56784778508Sblueswir1 env->y = regs->y; 56884778508Sblueswir1 for(i = 0; i < 8; i++) 56984778508Sblueswir1 env->gregs[i] = regs->u_regs[i]; 57084778508Sblueswir1 for(i = 0; i < 8; i++) 57184778508Sblueswir1 env->regwptr[i] = regs->u_regs[i + 8]; 57284778508Sblueswir1 } 57384778508Sblueswir1 #else 57484778508Sblueswir1 #error unsupported target CPU 57584778508Sblueswir1 #endif 57684778508Sblueswir1 57784778508Sblueswir1 if (gdbstub_port) { 57884778508Sblueswir1 gdbserver_start (gdbstub_port); 57984778508Sblueswir1 gdb_handlesig(env, 0); 58084778508Sblueswir1 } 58184778508Sblueswir1 cpu_loop(env, bsd_type); 58284778508Sblueswir1 /* never exits */ 58384778508Sblueswir1 return 0; 58484778508Sblueswir1 } 585