184778508Sblueswir1 /* 24c0a4fe6SWarner Losh * qemu bsd user main 384778508Sblueswir1 * 484778508Sblueswir1 * Copyright (c) 2003-2008 Fabrice Bellard 54c0a4fe6SWarner Losh * Copyright (c) 2013-14 Stacey Son 684778508Sblueswir1 * 784778508Sblueswir1 * This program is free software; you can redistribute it and/or modify 884778508Sblueswir1 * it under the terms of the GNU General Public License as published by 984778508Sblueswir1 * the Free Software Foundation; either version 2 of the License, or 1084778508Sblueswir1 * (at your option) any later version. 1184778508Sblueswir1 * 1284778508Sblueswir1 * This program is distributed in the hope that it will be useful, 1384778508Sblueswir1 * but WITHOUT ANY WARRANTY; without even the implied warranty of 1484778508Sblueswir1 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 1584778508Sblueswir1 * GNU General Public License for more details. 1684778508Sblueswir1 * 1784778508Sblueswir1 * You should have received a copy of the GNU General Public License 188167ee88SBlue Swirl * along with this program; if not, see <http://www.gnu.org/licenses/>. 1984778508Sblueswir1 */ 2014a48c1dSMarkus Armbruster 21312a0b1cSWarner Losh #include <sys/types.h> 22312a0b1cSWarner Losh #include <sys/time.h> 23312a0b1cSWarner Losh #include <sys/resource.h> 24312a0b1cSWarner Losh #include <sys/sysctl.h> 25312a0b1cSWarner Losh 262231197cSPeter Maydell #include "qemu/osdep.h" 27a8d25326SMarkus Armbruster #include "qemu-common.h" 2866d26ddbSPhilippe Mathieu-Daudé #include "qemu/units.h" 29940e43aaSClaudio Fontana #include "qemu/accel.h" 3014a48c1dSMarkus Armbruster #include "sysemu/tcg.h" 318c1c230aSEd Maste #include "qemu-version.h" 3284778508Sblueswir1 #include <machine/trap.h> 3384778508Sblueswir1 34daa76aa4SMarkus Armbruster #include "qapi/error.h" 3584778508Sblueswir1 #include "qemu.h" 366913e79cSLluís Vilanova #include "qemu/config-file.h" 37f5852efaSChristophe Fergeau #include "qemu/error-report.h" 38f348b6d1SVeronia Bahaa #include "qemu/path.h" 39f348b6d1SVeronia Bahaa #include "qemu/help_option.h" 400b8fa32fSMarkus Armbruster #include "qemu/module.h" 4163c91552SPaolo Bonzini #include "exec/exec-all.h" 42dcb32f1dSPhilippe Mathieu-Daudé #include "tcg/tcg.h" 431de7afc9SPaolo Bonzini #include "qemu/timer.h" 441de7afc9SPaolo Bonzini #include "qemu/envlist.h" 4529aabb4fSWarner Losh #include "qemu/cutils.h" 46508127e2SPaolo Bonzini #include "exec/log.h" 476913e79cSLluís Vilanova #include "trace/control.h" 4803ecf078SWarner Losh #include "crypto/init.h" 4903ecf078SWarner Losh #include "qemu/guest-random.h" 50fc0d96b4SBlue Swirl 51d1dc9ab3SWarner Losh #include "host-os.h" 52031fe7afSWarner Losh #include "target_arch_cpu.h" 53d1dc9ab3SWarner Losh 541b530a6dSaurel32 int singlestep; 555ca870b9SRichard Henderson uintptr_t guest_base; 56e307c192SRichard Henderson bool have_guest_base; 57be04f210SWarner Losh /* 58be04f210SWarner Losh * When running 32-on-64 we should make sure we can fit all of the possible 59be04f210SWarner Losh * guest address space into a contiguous chunk of virtual host memory. 60be04f210SWarner Losh * 61be04f210SWarner Losh * This way we will never overlap with our own libraries or binaries or stack 62be04f210SWarner Losh * or anything else that QEMU maps. 63be04f210SWarner Losh * 64be04f210SWarner Losh * Many cpus reserve the high bit (or more than one for some 64-bit cpus) 65be04f210SWarner Losh * of the address for the kernel. Some cpus rely on this and user space 66be04f210SWarner Losh * uses the high bit(s) for pointer tagging and the like. For them, we 67be04f210SWarner Losh * must preserve the expected address space. 68be04f210SWarner Losh */ 69be04f210SWarner Losh #ifndef MAX_RESERVED_VA 70be04f210SWarner Losh # if HOST_LONG_BITS > TARGET_VIRT_ADDR_SPACE_BITS 71be04f210SWarner Losh # if TARGET_VIRT_ADDR_SPACE_BITS == 32 && \ 72be04f210SWarner Losh (TARGET_LONG_BITS == 32 || defined(TARGET_ABI32)) 73be04f210SWarner Losh /* 74be04f210SWarner Losh * There are a number of places where we assign reserved_va to a variable 75be04f210SWarner Losh * of type abi_ulong and expect it to fit. Avoid the last page. 76be04f210SWarner Losh */ 77be04f210SWarner Losh # define MAX_RESERVED_VA (0xfffffffful & TARGET_PAGE_MASK) 78be04f210SWarner Losh # else 79be04f210SWarner Losh # define MAX_RESERVED_VA (1ul << TARGET_VIRT_ADDR_SPACE_BITS) 80be04f210SWarner Losh # endif 81be04f210SWarner Losh # else 82be04f210SWarner Losh # define MAX_RESERVED_VA 0 83be04f210SWarner Losh # endif 84be04f210SWarner Losh #endif 85be04f210SWarner Losh 86be04f210SWarner Losh /* 87be04f210SWarner Losh * That said, reserving *too* much vm space via mmap can run into problems 88be04f210SWarner Losh * with rlimits, oom due to page table creation, etc. We will still try it, 89be04f210SWarner Losh * if directed by the command-line option, but not by default. 90be04f210SWarner Losh */ 91be04f210SWarner Losh #if HOST_LONG_BITS == 64 && TARGET_VIRT_ADDR_SPACE_BITS <= 32 92be04f210SWarner Losh unsigned long reserved_va = MAX_RESERVED_VA; 93be04f210SWarner Losh #else 94d6ef40bfSPeter Maydell unsigned long reserved_va; 95be04f210SWarner Losh #endif 961b530a6dSaurel32 977ee2822cSPaolo Bonzini static const char *interp_prefix = CONFIG_QEMU_INTERP_PREFIX; 98fccae322SPeter Maydell const char *qemu_uname_release; 9901a298a5SWarner Losh char qemu_proc_pathname[PATH_MAX]; /* full path to exeutable */ 10084778508Sblueswir1 101312a0b1cSWarner Losh unsigned long target_maxtsiz = TARGET_MAXTSIZ; /* max text size */ 102312a0b1cSWarner Losh unsigned long target_dfldsiz = TARGET_DFLDSIZ; /* initial data size limit */ 103312a0b1cSWarner Losh unsigned long target_maxdsiz = TARGET_MAXDSIZ; /* max data size */ 104312a0b1cSWarner Losh unsigned long target_dflssiz = TARGET_DFLSSIZ; /* initial data size limit */ 105312a0b1cSWarner Losh unsigned long target_maxssiz = TARGET_MAXSSIZ; /* max stack size */ 106312a0b1cSWarner Losh unsigned long target_sgrowsiz = TARGET_SGROWSIZ; /* amount to grow stack */ 10784778508Sblueswir1 10863cca106SWarner Losh /* Helper routines for implementing atomic operations. */ 1099399f095Sblueswir1 1109399f095Sblueswir1 void fork_start(void) 1119399f095Sblueswir1 { 11263cca106SWarner Losh start_exclusive(); 11363cca106SWarner Losh cpu_list_lock(); 11463cca106SWarner Losh mmap_fork_start(); 1159399f095Sblueswir1 } 1169399f095Sblueswir1 1179399f095Sblueswir1 void fork_end(int child) 1189399f095Sblueswir1 { 1199399f095Sblueswir1 if (child) { 12063cca106SWarner Losh CPUState *cpu, *next_cpu; 12163cca106SWarner Losh /* 12263cca106SWarner Losh * Child processes created by fork() only have a single thread. Discard 12363cca106SWarner Losh * information about the parent threads. 12463cca106SWarner Losh */ 12563cca106SWarner Losh CPU_FOREACH_SAFE(cpu, next_cpu) { 12663cca106SWarner Losh if (cpu != thread_cpu) { 12763cca106SWarner Losh QTAILQ_REMOVE_RCU(&cpus, cpu, node); 12863cca106SWarner Losh } 12963cca106SWarner Losh } 13063cca106SWarner Losh mmap_fork_end(child); 13163cca106SWarner Losh /* 13263cca106SWarner Losh * qemu_init_cpu_list() takes care of reinitializing the exclusive 13363cca106SWarner Losh * state, so we don't need to end_exclusive() here. 13463cca106SWarner Losh */ 13563cca106SWarner Losh qemu_init_cpu_list(); 136f7ec7f7bSPeter Crosthwaite gdbserver_fork(thread_cpu); 13763cca106SWarner Losh } else { 13863cca106SWarner Losh mmap_fork_end(child); 13963cca106SWarner Losh cpu_list_unlock(); 14063cca106SWarner Losh end_exclusive(); 1419399f095Sblueswir1 } 1429399f095Sblueswir1 } 1439399f095Sblueswir1 144031fe7afSWarner Losh void cpu_loop(CPUArchState *env) 14531fc12dfSblueswir1 { 146031fe7afSWarner Losh target_cpu_loop(env); 14731fc12dfSblueswir1 } 14831fc12dfSblueswir1 14984778508Sblueswir1 static void usage(void) 15084778508Sblueswir1 { 1517e563bfbSThomas Huth printf("qemu-" TARGET_NAME " version " QEMU_FULL_VERSION 1520781dd6eSThomas Huth "\n" QEMU_COPYRIGHT "\n" 1532e59915dSPaolo Bonzini "usage: qemu-" TARGET_NAME " [options] program [arguments...]\n" 15484778508Sblueswir1 "BSD CPU emulator (compiled for %s emulation)\n" 15584778508Sblueswir1 "\n" 15684778508Sblueswir1 "Standard options:\n" 15784778508Sblueswir1 "-h print this help\n" 15884778508Sblueswir1 "-g port wait gdb connection to port\n" 15984778508Sblueswir1 "-L path set the elf interpreter prefix (default=%s)\n" 16084778508Sblueswir1 "-s size set the stack size in bytes (default=%ld)\n" 161c8057f95SPeter Maydell "-cpu model select CPU (-cpu help for list)\n" 16284778508Sblueswir1 "-drop-ld-preload drop LD_PRELOAD for target process\n" 163fc0d96b4SBlue Swirl "-E var=value sets/modifies targets environment variable(s)\n" 164fc0d96b4SBlue Swirl "-U var unsets targets environment variable(s)\n" 1652fa5d9baSBlue Swirl "-B address set guest_base address to address\n" 16684778508Sblueswir1 "\n" 16784778508Sblueswir1 "Debug options:\n" 168989b697dSPeter Maydell "-d item1[,...] enable logging of specified items\n" 169989b697dSPeter Maydell " (use '-d help' for a list of log items)\n" 170989b697dSPeter Maydell "-D logfile write logs to 'logfile' (default stderr)\n" 1711b530a6dSaurel32 "-singlestep always run in singlestep mode\n" 17284778508Sblueswir1 "-strace log system calls\n" 1736913e79cSLluís Vilanova "-trace [[enable=]<pattern>][,events=<file>][,file=<file>]\n" 1746913e79cSLluís Vilanova " specify tracing options\n" 17584778508Sblueswir1 "\n" 17684778508Sblueswir1 "Environment variables:\n" 17784778508Sblueswir1 "QEMU_STRACE Print system calls and arguments similar to the\n" 17884778508Sblueswir1 " 'strace' program. Enable by setting to any value.\n" 179fc0d96b4SBlue Swirl "You can use -E and -U options to set/unset environment variables\n" 180fc0d96b4SBlue Swirl "for target process. It is possible to provide several variables\n" 181fc0d96b4SBlue Swirl "by repeating the option. For example:\n" 182fc0d96b4SBlue Swirl " -E var1=val2 -E var2=val2 -U LD_PRELOAD -U LD_DEBUG\n" 183fc0d96b4SBlue Swirl "Note that if you provide several changes to single variable\n" 184fc0d96b4SBlue Swirl "last change will stay in effect.\n" 185f5048cb7SEric Blake "\n" 186f5048cb7SEric Blake QEMU_HELP_BOTTOM "\n" 18784778508Sblueswir1 , 1882e59915dSPaolo Bonzini TARGET_NAME, 18984778508Sblueswir1 interp_prefix, 190312a0b1cSWarner Losh target_dflssiz); 1912d18e637Sblueswir1 exit(1); 19284778508Sblueswir1 } 19384778508Sblueswir1 194d42df502SWarner Losh __thread CPUState *thread_cpu; 19584778508Sblueswir1 196653ccec2SWarner Losh void stop_all_tasks(void) 197653ccec2SWarner Losh { 198653ccec2SWarner Losh /* 199653ccec2SWarner Losh * We trust when using NPTL (pthreads) start_exclusive() handles thread 200653ccec2SWarner Losh * stopping correctly. 201653ccec2SWarner Losh */ 202653ccec2SWarner Losh start_exclusive(); 203653ccec2SWarner Losh } 204653ccec2SWarner Losh 20548f59211SEd Maste bool qemu_cpu_is_self(CPUState *cpu) 20648f59211SEd Maste { 20748f59211SEd Maste return thread_cpu == cpu; 20848f59211SEd Maste } 20948f59211SEd Maste 21048f59211SEd Maste void qemu_cpu_kick(CPUState *cpu) 21148f59211SEd Maste { 21248f59211SEd Maste cpu_exit(cpu); 21348f59211SEd Maste } 21448f59211SEd Maste 21584778508Sblueswir1 /* Assumes contents are already zeroed. */ 216b46d4ad7SWarner Losh static void init_task_state(TaskState *ts) 21784778508Sblueswir1 { 21846f4f76dSWarner Losh ts->sigaltstack_used = (struct target_sigaltstack) { 21946f4f76dSWarner Losh .ss_sp = 0, 22046f4f76dSWarner Losh .ss_size = 0, 22146f4f76dSWarner Losh .ss_flags = TARGET_SS_DISABLE, 22246f4f76dSWarner Losh }; 22384778508Sblueswir1 } 22484778508Sblueswir1 225f0f7f9dcSWarner Losh void gemu_log(const char *fmt, ...) 226f0f7f9dcSWarner Losh { 227f0f7f9dcSWarner Losh va_list ap; 228f0f7f9dcSWarner Losh 229f0f7f9dcSWarner Losh va_start(ap, fmt); 230f0f7f9dcSWarner Losh vfprintf(stderr, fmt, ap); 231f0f7f9dcSWarner Losh va_end(ap); 232f0f7f9dcSWarner Losh } 233f0f7f9dcSWarner Losh 234312a0b1cSWarner Losh static void 235312a0b1cSWarner Losh adjust_ssize(void) 236312a0b1cSWarner Losh { 237312a0b1cSWarner Losh struct rlimit rl; 238312a0b1cSWarner Losh 239312a0b1cSWarner Losh if (getrlimit(RLIMIT_STACK, &rl) != 0) { 240312a0b1cSWarner Losh return; 241312a0b1cSWarner Losh } 242312a0b1cSWarner Losh 243312a0b1cSWarner Losh target_maxssiz = MIN(target_maxssiz, rl.rlim_max); 244312a0b1cSWarner Losh target_dflssiz = MIN(MAX(target_dflssiz, rl.rlim_cur), target_maxssiz); 245312a0b1cSWarner Losh 246312a0b1cSWarner Losh rl.rlim_max = target_maxssiz; 247312a0b1cSWarner Losh rl.rlim_cur = target_dflssiz; 248312a0b1cSWarner Losh setrlimit(RLIMIT_STACK, &rl); 249312a0b1cSWarner Losh } 250312a0b1cSWarner Losh 25101a298a5SWarner Losh static void save_proc_pathname(char *argv0) 25201a298a5SWarner Losh { 25301a298a5SWarner Losh int mib[4]; 25401a298a5SWarner Losh size_t len; 25501a298a5SWarner Losh 25601a298a5SWarner Losh mib[0] = CTL_KERN; 25701a298a5SWarner Losh mib[1] = KERN_PROC; 25801a298a5SWarner Losh mib[2] = KERN_PROC_PATHNAME; 25901a298a5SWarner Losh mib[3] = -1; 26001a298a5SWarner Losh 26101a298a5SWarner Losh len = sizeof(qemu_proc_pathname); 26201a298a5SWarner Losh if (sysctl(mib, 4, qemu_proc_pathname, &len, NULL, 0)) { 26301a298a5SWarner Losh perror("sysctl"); 26401a298a5SWarner Losh } 26501a298a5SWarner Losh } 26601a298a5SWarner Losh 26784778508Sblueswir1 int main(int argc, char **argv) 26884778508Sblueswir1 { 26984778508Sblueswir1 const char *filename; 27084778508Sblueswir1 const char *cpu_model; 2712278b939SIgor Mammedov const char *cpu_type; 272989b697dSPeter Maydell const char *log_file = NULL; 273c235d738SMatthew Fernandez const char *log_mask = NULL; 27403ecf078SWarner Losh const char *seed_optarg = NULL; 27584778508Sblueswir1 struct target_pt_regs regs1, *regs = ®s1; 27684778508Sblueswir1 struct image_info info1, *info = &info1; 277d37853f9SWarner Losh struct bsd_binprm bprm; 278031fe7afSWarner Losh TaskState *ts; 2799349b4f9SAndreas Färber CPUArchState *env; 280db6b81d4SAndreas Färber CPUState *cpu; 28129aabb4fSWarner Losh int optind, rv; 28284778508Sblueswir1 const char *r; 283fcedd920SAlex Bennée const char *gdbstub = NULL; 284fc0d96b4SBlue Swirl char **target_environ, **wrk; 285fc0d96b4SBlue Swirl envlist_t *envlist = NULL; 286b8012648SColin Percival char *argv0 = NULL; 28784778508Sblueswir1 288312a0b1cSWarner Losh adjust_ssize(); 289312a0b1cSWarner Losh 290b23a51dcSWarner Losh if (argc <= 1) { 29184778508Sblueswir1 usage(); 292b23a51dcSWarner Losh } 29384778508Sblueswir1 29401a298a5SWarner Losh save_proc_pathname(argv[0]); 29501a298a5SWarner Losh 296f5852efaSChristophe Fergeau error_init(argv[0]); 297fe4db84dSDaniel P. Berrange module_call_init(MODULE_INIT_TRACE); 298267f685bSPaolo Bonzini qemu_init_cpu_list(); 299ce008c1fSAndreas Färber module_call_init(MODULE_INIT_QOM); 300ce008c1fSAndreas Färber 301ec45bbe5SSaurav Sachidanand envlist = envlist_create(); 302fc0d96b4SBlue Swirl 303fc0d96b4SBlue Swirl /* add current environment into the list */ 304fc0d96b4SBlue Swirl for (wrk = environ; *wrk != NULL; wrk++) { 305fc0d96b4SBlue Swirl (void) envlist_setenv(envlist, *wrk); 306fc0d96b4SBlue Swirl } 307fc0d96b4SBlue Swirl 30884778508Sblueswir1 cpu_model = NULL; 3090c62de2fSJuergen Lock 3106913e79cSLluís Vilanova qemu_add_opts(&qemu_trace_opts); 3116913e79cSLluís Vilanova 31284778508Sblueswir1 optind = 1; 31384778508Sblueswir1 for (;;) { 314b23a51dcSWarner Losh if (optind >= argc) { 31584778508Sblueswir1 break; 316b23a51dcSWarner Losh } 31784778508Sblueswir1 r = argv[optind]; 318b23a51dcSWarner Losh if (r[0] != '-') { 31984778508Sblueswir1 break; 320b23a51dcSWarner Losh } 32184778508Sblueswir1 optind++; 32284778508Sblueswir1 r++; 32384778508Sblueswir1 if (!strcmp(r, "-")) { 32484778508Sblueswir1 break; 32584778508Sblueswir1 } else if (!strcmp(r, "d")) { 326c235d738SMatthew Fernandez if (optind >= argc) { 32784778508Sblueswir1 break; 32884778508Sblueswir1 } 329c235d738SMatthew Fernandez log_mask = argv[optind++]; 330c235d738SMatthew Fernandez } else if (!strcmp(r, "D")) { 331c235d738SMatthew Fernandez if (optind >= argc) { 332c235d738SMatthew Fernandez break; 33384778508Sblueswir1 } 334c235d738SMatthew Fernandez log_file = argv[optind++]; 335fc0d96b4SBlue Swirl } else if (!strcmp(r, "E")) { 336fc0d96b4SBlue Swirl r = argv[optind++]; 337b23a51dcSWarner Losh if (envlist_setenv(envlist, r) != 0) { 338fc0d96b4SBlue Swirl usage(); 339b23a51dcSWarner Losh } 340f66724c9SStefan Weil } else if (!strcmp(r, "ignore-environment")) { 341f66724c9SStefan Weil envlist_free(envlist); 342ec45bbe5SSaurav Sachidanand envlist = envlist_create(); 343fc0d96b4SBlue Swirl } else if (!strcmp(r, "U")) { 344fc0d96b4SBlue Swirl r = argv[optind++]; 345b23a51dcSWarner Losh if (envlist_unsetenv(envlist, r) != 0) { 346fc0d96b4SBlue Swirl usage(); 347b23a51dcSWarner Losh } 34884778508Sblueswir1 } else if (!strcmp(r, "s")) { 34984778508Sblueswir1 r = argv[optind++]; 350312a0b1cSWarner Losh rv = qemu_strtoul(r, &r, 0, &target_dflssiz); 351312a0b1cSWarner Losh if (rv < 0 || target_dflssiz <= 0) { 35284778508Sblueswir1 usage(); 353b23a51dcSWarner Losh } 354b23a51dcSWarner Losh if (*r == 'M') { 355312a0b1cSWarner Losh target_dflssiz *= 1024 * 1024; 356b23a51dcSWarner Losh } else if (*r == 'k' || *r == 'K') { 357312a0b1cSWarner Losh target_dflssiz *= 1024; 358312a0b1cSWarner Losh } 359312a0b1cSWarner Losh if (target_dflssiz > target_maxssiz) { 360312a0b1cSWarner Losh usage(); 361b23a51dcSWarner Losh } 36284778508Sblueswir1 } else if (!strcmp(r, "L")) { 36384778508Sblueswir1 interp_prefix = argv[optind++]; 36484778508Sblueswir1 } else if (!strcmp(r, "p")) { 36584778508Sblueswir1 qemu_host_page_size = atoi(argv[optind++]); 36684778508Sblueswir1 if (qemu_host_page_size == 0 || 36784778508Sblueswir1 (qemu_host_page_size & (qemu_host_page_size - 1)) != 0) { 36884778508Sblueswir1 fprintf(stderr, "page size must be a power of two\n"); 36984778508Sblueswir1 exit(1); 37084778508Sblueswir1 } 37184778508Sblueswir1 } else if (!strcmp(r, "g")) { 372fcedd920SAlex Bennée gdbstub = g_strdup(argv[optind++]); 37384778508Sblueswir1 } else if (!strcmp(r, "r")) { 37484778508Sblueswir1 qemu_uname_release = argv[optind++]; 37584778508Sblueswir1 } else if (!strcmp(r, "cpu")) { 37684778508Sblueswir1 cpu_model = argv[optind++]; 377c8057f95SPeter Maydell if (is_help_option(cpu_model)) { 37884778508Sblueswir1 /* XXX: implement xxx_cpu_list for targets that still miss it */ 37984778508Sblueswir1 #if defined(cpu_list) 3800442428aSMarkus Armbruster cpu_list(); 38184778508Sblueswir1 #endif 3822d18e637Sblueswir1 exit(1); 38384778508Sblueswir1 } 3842fa5d9baSBlue Swirl } else if (!strcmp(r, "B")) { 38529aabb4fSWarner Losh rv = qemu_strtoul(argv[optind++], NULL, 0, &guest_base); 38629aabb4fSWarner Losh if (rv < 0) { 38729aabb4fSWarner Losh usage(); 38829aabb4fSWarner Losh } 389e307c192SRichard Henderson have_guest_base = true; 39084778508Sblueswir1 } else if (!strcmp(r, "drop-ld-preload")) { 391fc0d96b4SBlue Swirl (void) envlist_unsetenv(envlist, "LD_PRELOAD"); 39203ecf078SWarner Losh } else if (!strcmp(r, "seed")) { 39303ecf078SWarner Losh seed_optarg = optarg; 3941b530a6dSaurel32 } else if (!strcmp(r, "singlestep")) { 3951b530a6dSaurel32 singlestep = 1; 39684778508Sblueswir1 } else if (!strcmp(r, "strace")) { 39784778508Sblueswir1 do_strace = 1; 3986913e79cSLluís Vilanova } else if (!strcmp(r, "trace")) { 39992eecfffSPaolo Bonzini trace_opt_parse(optarg); 400b8012648SColin Percival } else if (!strcmp(r, "0")) { 401b8012648SColin Percival argv0 = argv[optind++]; 4026913e79cSLluís Vilanova } else { 40384778508Sblueswir1 usage(); 40484778508Sblueswir1 } 40584778508Sblueswir1 } 40684778508Sblueswir1 407c235d738SMatthew Fernandez /* init debug */ 408*905c78feSRichard Henderson { 409*905c78feSRichard Henderson int mask = 0; 410c235d738SMatthew Fernandez if (log_mask) { 4114fde1ebaSPeter Maydell mask = qemu_str_to_log_mask(log_mask); 412c235d738SMatthew Fernandez if (!mask) { 41359a6fa6eSPeter Maydell qemu_print_log_usage(stdout); 414c235d738SMatthew Fernandez exit(1); 415c235d738SMatthew Fernandez } 416*905c78feSRichard Henderson } 417*905c78feSRichard Henderson qemu_set_log_filename_flags(log_file, mask, &error_fatal); 418c235d738SMatthew Fernandez } 419c235d738SMatthew Fernandez 4204b5dfd82SPeter Maydell if (optind >= argc) { 4214b5dfd82SPeter Maydell usage(); 4224b5dfd82SPeter Maydell } 4234b5dfd82SPeter Maydell filename = argv[optind]; 424b8012648SColin Percival if (argv0) { 425b8012648SColin Percival argv[optind] = argv0; 426b8012648SColin Percival } 4274b5dfd82SPeter Maydell 4286913e79cSLluís Vilanova if (!trace_init_backends()) { 4296913e79cSLluís Vilanova exit(1); 4306913e79cSLluís Vilanova } 43192eecfffSPaolo Bonzini trace_init_file(); 4326913e79cSLluís Vilanova 43384778508Sblueswir1 /* Zero out regs */ 43484778508Sblueswir1 memset(regs, 0, sizeof(struct target_pt_regs)); 43584778508Sblueswir1 436d37853f9SWarner Losh /* Zero bsd params */ 437d37853f9SWarner Losh memset(&bprm, 0, sizeof(bprm)); 438d37853f9SWarner Losh 43984778508Sblueswir1 /* Zero out image_info */ 44084778508Sblueswir1 memset(info, 0, sizeof(struct image_info)); 44184778508Sblueswir1 44284778508Sblueswir1 /* Scan interp_prefix dir for replacement files. */ 44384778508Sblueswir1 init_paths(interp_prefix); 44484778508Sblueswir1 44584778508Sblueswir1 if (cpu_model == NULL) { 446031fe7afSWarner Losh cpu_model = TARGET_DEFAULT_CPU_MODEL; 44784778508Sblueswir1 } 4482b5249b8SIgor Mammedov 449b86f59c7SClaudio Fontana cpu_type = parse_cpu_option(cpu_model); 450031fe7afSWarner Losh 4512b5249b8SIgor Mammedov /* init tcg before creating CPUs and to get qemu_host_page_size */ 452940e43aaSClaudio Fontana { 453940e43aaSClaudio Fontana AccelClass *ac = ACCEL_GET_CLASS(current_accel()); 4542b5249b8SIgor Mammedov 455b86f59c7SClaudio Fontana accel_init_interfaces(ac); 45692242f34SClaudio Fontana ac->init_machine(NULL); 457940e43aaSClaudio Fontana } 4582278b939SIgor Mammedov cpu = cpu_create(cpu_type); 4592994fd96SEduardo Habkost env = cpu->env_ptr; 460db6b81d4SAndreas Färber cpu_reset(cpu); 461db6b81d4SAndreas Färber thread_cpu = cpu; 46284778508Sblueswir1 46384778508Sblueswir1 if (getenv("QEMU_STRACE")) { 46484778508Sblueswir1 do_strace = 1; 46584778508Sblueswir1 } 46684778508Sblueswir1 467fc0d96b4SBlue Swirl target_environ = envlist_to_environ(envlist, NULL); 468fc0d96b4SBlue Swirl envlist_free(envlist); 46984778508Sblueswir1 470be04f210SWarner Losh if (reserved_va) { 471be04f210SWarner Losh mmap_next_start = reserved_va; 472be04f210SWarner Losh } 473be04f210SWarner Losh 47403ecf078SWarner Losh { 47503ecf078SWarner Losh Error *err = NULL; 47603ecf078SWarner Losh if (seed_optarg != NULL) { 47703ecf078SWarner Losh qemu_guest_random_seed_main(seed_optarg, &err); 47803ecf078SWarner Losh } else { 47903ecf078SWarner Losh qcrypto_init(&err); 48003ecf078SWarner Losh } 48103ecf078SWarner Losh if (err) { 48203ecf078SWarner Losh error_reportf_err(err, "cannot initialize crypto: "); 48303ecf078SWarner Losh exit(1); 48403ecf078SWarner Losh } 48503ecf078SWarner Losh } 48603ecf078SWarner Losh 4872fa5d9baSBlue Swirl /* 488fa79cde6SRichard Henderson * Now that page sizes are configured we can do 4892fa5d9baSBlue Swirl * proper page alignment for guest_base. 4902fa5d9baSBlue Swirl */ 4912fa5d9baSBlue Swirl guest_base = HOST_PAGE_ALIGN(guest_base); 4922fa5d9baSBlue Swirl 493d37853f9SWarner Losh if (loader_exec(filename, argv + optind, target_environ, regs, info, 494d37853f9SWarner Losh &bprm) != 0) { 49584778508Sblueswir1 printf("Error loading %s\n", filename); 49684778508Sblueswir1 _exit(1); 49784778508Sblueswir1 } 49884778508Sblueswir1 49984778508Sblueswir1 for (wrk = target_environ; *wrk; wrk++) { 500ec45bbe5SSaurav Sachidanand g_free(*wrk); 50184778508Sblueswir1 } 50284778508Sblueswir1 503ec45bbe5SSaurav Sachidanand g_free(target_environ); 50484778508Sblueswir1 50513829020SPaolo Bonzini if (qemu_loglevel_mask(CPU_LOG_PAGE)) { 50643b76161SRichard Henderson FILE *f = qemu_log_trylock(); 50743b76161SRichard Henderson if (f) { 50843b76161SRichard Henderson fprintf(f, "guest_base %p\n", (void *)guest_base); 50943b76161SRichard Henderson fprintf(f, "page layout changed following binary load\n"); 51043b76161SRichard Henderson page_dump(f); 51184778508Sblueswir1 51243b76161SRichard Henderson fprintf(f, "start_brk 0x" TARGET_ABI_FMT_lx "\n", 51343b76161SRichard Henderson info->start_brk); 51443b76161SRichard Henderson fprintf(f, "end_code 0x" TARGET_ABI_FMT_lx "\n", 51543b76161SRichard Henderson info->end_code); 51643b76161SRichard Henderson fprintf(f, "start_code 0x" TARGET_ABI_FMT_lx "\n", 51784778508Sblueswir1 info->start_code); 51843b76161SRichard Henderson fprintf(f, "start_data 0x" TARGET_ABI_FMT_lx "\n", 51984778508Sblueswir1 info->start_data); 52043b76161SRichard Henderson fprintf(f, "end_data 0x" TARGET_ABI_FMT_lx "\n", 52143b76161SRichard Henderson info->end_data); 52243b76161SRichard Henderson fprintf(f, "start_stack 0x" TARGET_ABI_FMT_lx "\n", 52384778508Sblueswir1 info->start_stack); 52443b76161SRichard Henderson fprintf(f, "brk 0x" TARGET_ABI_FMT_lx "\n", info->brk); 52543b76161SRichard Henderson fprintf(f, "entry 0x" TARGET_ABI_FMT_lx "\n", info->entry); 52643b76161SRichard Henderson 52743b76161SRichard Henderson qemu_log_unlock(f); 52843b76161SRichard Henderson } 5292e77eac6Sblueswir1 } 53084778508Sblueswir1 531031fe7afSWarner Losh /* build Task State */ 532031fe7afSWarner Losh ts = g_new0(TaskState, 1); 533031fe7afSWarner Losh init_task_state(ts); 534031fe7afSWarner Losh ts->info = info; 535031fe7afSWarner Losh ts->bprm = &bprm; 536031fe7afSWarner Losh cpu->opaque = ts; 537031fe7afSWarner Losh 53884778508Sblueswir1 target_set_brk(info->brk); 53984778508Sblueswir1 syscall_init(); 54084778508Sblueswir1 signal_init(); 54184778508Sblueswir1 54234bc8475SWarner Losh /* 54334bc8475SWarner Losh * Now that we've loaded the binary, GUEST_BASE is fixed. Delay 54434bc8475SWarner Losh * generating the prologue until now so that the prologue can take 54534bc8475SWarner Losh * the real value of GUEST_BASE into account. 54634bc8475SWarner Losh */ 547b1311c4aSEmilio G. Cota tcg_prologue_init(tcg_ctx); 5489002ec79SRichard Henderson 549031fe7afSWarner Losh target_cpu_init(env, regs); 55084778508Sblueswir1 551fcedd920SAlex Bennée if (gdbstub) { 552fcedd920SAlex Bennée gdbserver_start(gdbstub); 553db6b81d4SAndreas Färber gdb_handlesig(cpu, 0); 55484778508Sblueswir1 } 55578cfb07fSJuergen Lock cpu_loop(env); 55684778508Sblueswir1 /* never exits */ 55784778508Sblueswir1 return 0; 55884778508Sblueswir1 } 559