#include <errno.h>
#include <unistd.h>
#include <sys/mman.h>
+#include <sys/syscall.h>
#include "qemu.h"
#include "qemu-common.h"
char *exec_path;
+int singlestep;
+#if defined(CONFIG_USE_GUEST_BASE)
+unsigned long mmap_min_addr = 0;
+unsigned long guest_base = 0;
+#endif
+
static const char *interp_prefix = CONFIG_QEMU_PREFIX;
const char *qemu_uname_release = CONFIG_UNAME_RELEASE;
for (other = first_cpu; other; other = other->next_cpu) {
if (other->running) {
pending_cpus++;
- cpu_interrupt(other, CPU_INTERRUPT_EXIT);
+ cpu_exit(other);
}
}
if (pending_cpus > 1) {
default:
printf ("Unhandled trap: 0x%x\n", trapnr);
cpu_dump_state(env, stderr, fprintf, 0);
- exit (1);
+ _exit (1);
}
process_pending_signals (env);
}
return -1;
}
-#define EXCP_DUMP(env, fmt, args...) \
-do { \
- fprintf(stderr, fmt , ##args); \
- cpu_dump_state(env, stderr, fprintf, 0); \
- qemu_log(fmt, ##args); \
- log_cpu_state(env, 0); \
+#define EXCP_DUMP(env, fmt, ...) \
+do { \
+ fprintf(stderr, fmt , ## __VA_ARGS__); \
+ cpu_dump_state(env, stderr, fprintf, 0); \
+ qemu_log(fmt, ## __VA_ARGS__); \
+ log_cpu_state(env, 0); \
} while (0)
void cpu_loop(CPUPPCState *env)
ret = do_syscall(env, env->gpr[0], env->gpr[3], env->gpr[4],
env->gpr[5], env->gpr[6], env->gpr[7],
env->gpr[8]);
+ if (ret == (uint32_t)(-TARGET_QEMU_ESIGRETURN)) {
+ /* Returning from a successful sigreturn syscall.
+ Avoid corrupting register state. */
+ break;
+ }
if (ret > (uint32_t)(-515)) {
env->crf[0] |= 0x1;
ret = -ret;
env->active_tc.gpr[7],
arg5, arg6/*, arg7, arg8*/);
}
+ if (ret == -TARGET_QEMU_ESIGRETURN) {
+ /* Returning from a successful sigreturn syscall.
+ Avoid clobbering register state. */
+ break;
+ }
if ((unsigned int)ret >= (unsigned int)(-1133)) {
env->active_tc.gpr[7] = 1; /* error flag */
ret = -ret;
break;
case EXCP_TLBL:
case EXCP_TLBS:
+ info.si_signo = TARGET_SIGSEGV;
+ info.si_errno = 0;
+ /* XXX: check env->error_code */
+ info.si_code = TARGET_SEGV_MAPERR;
+ info._sifields._sigfault._addr = env->CP0_BadVAddr;
+ queue_signal(env, info.si_signo, &info);
+ break;
case EXCP_CpU:
case EXCP_RI:
info.si_signo = TARGET_SIGILL;
default:
printf ("Unhandled trap: 0x%x\n", trapnr);
cpu_dump_state(env, stderr, fprintf, 0);
- exit (1);
+ _exit (1);
}
process_pending_signals (env);
}
}
#endif
+#ifdef TARGET_MICROBLAZE
+void cpu_loop (CPUState *env)
+{
+ int trapnr, ret;
+ target_siginfo_t info;
+
+ while (1) {
+ trapnr = cpu_mb_exec (env);
+ switch (trapnr) {
+ case 0xaa:
+ {
+ info.si_signo = SIGSEGV;
+ info.si_errno = 0;
+ /* XXX: check env->error_code */
+ info.si_code = TARGET_SEGV_MAPERR;
+ info._sifields._sigfault._addr = 0;
+ queue_signal(env, info.si_signo, &info);
+ }
+ break;
+ case EXCP_INTERRUPT:
+ /* just indicate that signals should be handled asap */
+ break;
+ case EXCP_BREAK:
+ /* Return address is 4 bytes after the call. */
+ env->regs[14] += 4;
+ ret = do_syscall(env,
+ env->regs[12],
+ env->regs[5],
+ env->regs[6],
+ env->regs[7],
+ env->regs[8],
+ env->regs[9],
+ env->regs[10]);
+ env->regs[3] = ret;
+ env->sregs[SR_PC] = env->regs[14];
+ break;
+ case EXCP_DEBUG:
+ {
+ int sig;
+
+ sig = gdb_handlesig (env, TARGET_SIGTRAP);
+ if (sig)
+ {
+ info.si_signo = sig;
+ info.si_errno = 0;
+ info.si_code = TARGET_TRAP_BRKPT;
+ queue_signal(env, info.si_signo, &info);
+ }
+ }
+ break;
+ default:
+ printf ("Unhandled trap: 0x%x\n", trapnr);
+ cpu_dump_state(env, stderr, fprintf, 0);
+ exit (1);
+ }
+ process_pending_signals (env);
+ }
+}
+#endif
+
#ifdef TARGET_M68K
void cpu_loop(CPUM68KState *env)
static void usage(void)
{
- printf("qemu-" TARGET_ARCH " version " QEMU_VERSION ", Copyright (c) 2003-2008 Fabrice Bellard\n"
+ printf("qemu-" TARGET_ARCH " version " QEMU_VERSION QEMU_PKGVERSION ", Copyright (c) 2003-2008 Fabrice Bellard\n"
"usage: qemu-" TARGET_ARCH " [options] program [arguments...]\n"
"Linux CPU emulator (compiled for %s emulation)\n"
"\n"
"-drop-ld-preload drop LD_PRELOAD for target process\n"
"-E var=value sets/modifies targets environment variable(s)\n"
"-U var unsets targets environment variable(s)\n"
+ "-0 argv0 forces target process argv[0] to be argv0\n"
+#if defined(CONFIG_USE_GUEST_BASE)
+ "-B address set guest_base address to address\n"
+#endif
"\n"
"Debug options:\n"
"-d options activate log (logfile=%s)\n"
"-p pagesize set the host page size to 'pagesize'\n"
+ "-singlestep always run in singlestep mode\n"
"-strace log system calls\n"
"\n"
"Environment variables:\n"
" -E var1=val2 -E var2=val2 -U LD_PRELOAD -U LD_DEBUG\n"
"Note that if you provide several changes to single variable\n"
"last change will stay in effect.\n"
+#if defined(CONFIG_USE_GUEST_BASE)
+ "\n"
+ "You can use -B option to load target binary into different\n"
+ "address that is specified in elf headers. This can be useful\n"
+ "when target binary would be loaded to low addresses and\n"
+ "/proc/sys/vm/mmap_min_addr is set to higher. For example\n"
+ " qemu-" TARGET_ARCH " -B 0x100000 ...\n"
+ "loads target binary starting from the first meg.\n"
+#endif
,
TARGET_ARCH,
interp_prefix,
THREAD CPUState *thread_env;
+void task_settid(TaskState *ts)
+{
+ if (ts->ts_tid == 0) {
+#ifdef USE_NPTL
+ ts->ts_tid = (pid_t)syscall(SYS_gettid);
+#else
+ /* when no threads are used, tid becomes pid */
+ ts->ts_tid = getpid();
+#endif
+ }
+}
+
+void stop_all_tasks(void)
+{
+ /*
+ * We trust that when using NPTL, start_exclusive()
+ * handles thread stopping correctly.
+ */
+ start_exclusive();
+}
+
/* Assumes contents are already zeroed. */
void init_task_state(TaskState *ts)
{
int main(int argc, char **argv, char **envp)
{
- const char *filename;
+ char *filename = NULL;
const char *cpu_model;
struct target_pt_regs regs1, *regs = ®s1;
struct image_info info1, *info = &info1;
+ struct linux_binprm bprm;
TaskState ts1, *ts = &ts1;
CPUState *env;
int optind;
const char *r;
int gdbstub_port = 0;
char **target_environ, **wrk;
+ char **target_argv;
+ int target_argc;
+ int drop_ld_preload = 0;
envlist_t *envlist = NULL;
+ const char *argv0 = NULL;
+ int argskip = 0;
+ int i;
if (argc <= 1)
usage();
for(item = cpu_log_items; item->mask != 0; item++) {
printf("%-10s %s\n", item->name, item->help);
}
- exit(1);
+ _exit(1);
}
cpu_set_log(mask);
} else if (!strcmp(r, "E")) {
r = argv[optind++];
if (envlist_unsetenv(envlist, r) != 0)
usage();
+ } else if (!strcmp(r, "0")) {
+ r = argv[optind++];
+ argv0 = r;
+ } else if (!strcmp(r,"-sbox-call")) {
+ argskip++;
} else if (!strcmp(r, "s")) {
if (optind >= argc)
break;
if (qemu_host_page_size == 0 ||
(qemu_host_page_size & (qemu_host_page_size - 1)) != 0) {
fprintf(stderr, "page size must be a power of two\n");
- exit(1);
+ _exit(1);
}
} else if (!strcmp(r, "g")) {
if (optind >= argc)
#endif
exit(1);
}
+#if defined(CONFIG_USE_GUEST_BASE)
+ } else if (!strcmp(r, "B")) {
+ guest_base = strtol(argv[optind++], NULL, 0);
+#endif
} else if (!strcmp(r, "drop-ld-preload")) {
- (void) envlist_unsetenv(envlist, "LD_PRELOAD");
+ drop_ld_preload = 1;
+ } else if (!strcmp(r, "keep-ld-preload")) {
+ drop_ld_preload = 0;
+ } else if (!strcmp(r, "singlestep")) {
+ singlestep = 1;
} else if (!strcmp(r, "strace")) {
do_strace = 1;
} else
}
if (optind >= argc)
usage();
- filename = argv[optind];
- exec_path = argv[optind];
+ if (filename == NULL) {
+ filename = argv[optind];
+ exec_path = argv[optind];
+ } else {
+ argv0 = argv[optind];
+ }
+ if (drop_ld_preload) {
+ (void) envlist_unsetenv(envlist, "LD_PRELOAD");
+ }
/* Zero out regs */
memset(regs, 0, sizeof(struct target_pt_regs));
/* Zero out image_info */
memset(info, 0, sizeof(struct image_info));
+ memset(&bprm, 0, sizeof (bprm));
+
/* Scan interp_prefix dir for replacement files. */
init_paths(interp_prefix);
cpu_model = "qemu32";
#endif
#elif defined(TARGET_ARM)
- cpu_model = "arm926";
+ cpu_model = "any";
#elif defined(TARGET_M68K)
cpu_model = "any";
#elif defined(TARGET_SPARC)
target_environ = envlist_to_environ(envlist, NULL);
envlist_free(envlist);
- if (loader_exec(filename, argv+optind, target_environ, regs, info) != 0) {
+#if defined(CONFIG_USE_GUEST_BASE)
+ /*
+ * Now that page sizes are configured in cpu_init() we can do
+ * proper page alignment for guest_base.
+ */
+ guest_base = HOST_PAGE_ALIGN(guest_base);
+
+ /*
+ * Read in mmap_min_addr kernel parameter and check
+ * whether it is set to some value > 0. This value is used
+ * later on when doing mmap(2)s to calculate where guest_base
+ * is to set, if needed.
+ *
+ * When user has explicitly set the quest base, we skip this
+ * test.
+ */
+ if (guest_base == 0) {
+ FILE *fp;
+
+ if ((fp = fopen("/proc/sys/vm/mmap_min_addr", "r")) != NULL) {
+ unsigned long tmp;
+ if (fscanf(fp, "%lu", &tmp) == 1) {
+ mmap_min_addr = tmp;
+ qemu_log("kernel mmap_min_addr=%lu\n", mmap_min_addr);
+ }
+ fclose(fp);
+ }
+ }
+#endif /* CONFIG_USE_GUEST_BASE */
+
+ /*
+ * Prepare copy of argv vector for target.
+ */
+ target_argc = argc - optind;
+ target_argv = calloc(target_argc + 1, sizeof (char *));
+ if (target_argv == NULL) {
+ (void) fprintf(stderr, "Unable to allocate memory for target_argv\n");
+ exit(1);
+ }
+
+ /*
+ * If argv0 is specified (using '-0' switch) we replace
+ * argv[0] pointer with the given one.
+ */
+ i = 0;
+ if (argv0 != NULL) {
+ target_argv[i++] = strdup(argv0);
+ }
+ for (; i < target_argc; i++) {
+ target_argv[i] = strdup(argv[optind + i]);
+ }
+ target_argv[target_argc] = NULL;
+
+ memset(ts, 0, sizeof(TaskState));
+ init_task_state(ts);
+ /* build Task State */
+ ts->info = info;
+ ts->bprm = &bprm;
+ env->opaque = ts;
+ task_settid(ts);
+
+ if (loader_exec(filename, target_argv+argskip, target_environ, regs,
+ info, &bprm) != 0) {
printf("Error loading %s\n", filename);
_exit(1);
}
+ for (i = 0; i < target_argc; i++) {
+ free(target_argv[i]);
+ }
+ free(target_argv);
+
for (wrk = target_environ; *wrk; wrk++) {
free(*wrk);
}
free(target_environ);
if (qemu_log_enabled()) {
+#if defined(CONFIG_USE_GUEST_BASE)
+ if (guest_base > 0) {
+ qemu_log("guest_base is set to 0x%lx\n", guest_base);
+ qemu_log(
+ "==========================================================\n"
+ "Note that all target addresses below are given in target\n"
+ "address space which is different from host by guest_base.\n"
+ "For example: target address 0x%lx becomes 0x%lx and so on.\n"
+ "==========================================================\n",
+ (uintptr_t)0x8000, (uintptr_t)g2h(0x8000));
+ }
+#endif
log_page_dump();
qemu_log("start_brk 0x" TARGET_ABI_FMT_lx "\n", info->start_brk);
syscall_init();
signal_init();
- /* build Task State */
- memset(ts, 0, sizeof(TaskState));
- init_task_state(ts);
- ts->info = info;
- env->opaque = ts;
-
#if defined(TARGET_I386)
cpu_x86_set_cpl(env, 3);
env->sr = regs->sr;
ts->sim_syscalls = 1;
}
+#elif defined(TARGET_MICROBLAZE)
+ {
+ env->regs[0] = regs->r0;
+ env->regs[1] = regs->r1;
+ env->regs[2] = regs->r2;
+ env->regs[3] = regs->r3;
+ env->regs[4] = regs->r4;
+ env->regs[5] = regs->r5;
+ env->regs[6] = regs->r6;
+ env->regs[7] = regs->r7;
+ env->regs[8] = regs->r8;
+ env->regs[9] = regs->r9;
+ env->regs[10] = regs->r10;
+ env->regs[11] = regs->r11;
+ env->regs[12] = regs->r12;
+ env->regs[13] = regs->r13;
+ env->regs[14] = regs->r14;
+ env->regs[15] = regs->r15;
+ env->regs[16] = regs->r16;
+ env->regs[17] = regs->r17;
+ env->regs[18] = regs->r18;
+ env->regs[19] = regs->r19;
+ env->regs[20] = regs->r20;
+ env->regs[21] = regs->r21;
+ env->regs[22] = regs->r22;
+ env->regs[23] = regs->r23;
+ env->regs[24] = regs->r24;
+ env->regs[25] = regs->r25;
+ env->regs[26] = regs->r26;
+ env->regs[27] = regs->r27;
+ env->regs[28] = regs->r28;
+ env->regs[29] = regs->r29;
+ env->regs[30] = regs->r30;
+ env->regs[31] = regs->r31;
+ env->sregs[SR_PC] = regs->pc;
+ }
#elif defined(TARGET_MIPS)
{
int i;
projects / qemu / blobdiff