*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ * Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
+ * MA 02110-1301, USA.
*/
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <errno.h>
#include <unistd.h>
+#include <sys/mman.h>
+#include <sys/syscall.h>
#include "qemu.h"
#include "qemu-common.h"
+#include "cache-utils.h"
+/* For tb_lock */
+#include "exec-all.h"
+
+
+#include "envlist.h"
#define DEBUG_LOGFILE "/tmp/qemu.log"
+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;
return 0;
}
+#if defined(TARGET_I386)
int cpu_get_pic_interrupt(CPUState *env)
{
return -1;
}
+#endif
/* timers for rdtsc */
#endif
+#if defined(USE_NPTL)
+/***********************************************************/
+/* Helper routines for implementing atomic operations. */
+
+/* To implement exclusive operations we force all cpus to syncronise.
+ We don't require a full sync, only that no cpus are executing guest code.
+ The alternative is to map target atomic ops onto host equivalents,
+ which requires quite a lot of per host/target work. */
+static pthread_mutex_t cpu_list_mutex = PTHREAD_MUTEX_INITIALIZER;
+static pthread_mutex_t exclusive_lock = PTHREAD_MUTEX_INITIALIZER;
+static pthread_cond_t exclusive_cond = PTHREAD_COND_INITIALIZER;
+static pthread_cond_t exclusive_resume = PTHREAD_COND_INITIALIZER;
+static int pending_cpus;
+
+/* Make sure everything is in a consistent state for calling fork(). */
+void fork_start(void)
+{
+ mmap_fork_start();
+ pthread_mutex_lock(&tb_lock);
+ pthread_mutex_lock(&exclusive_lock);
+}
+
+void fork_end(int child)
+{
+ if (child) {
+ /* Child processes created by fork() only have a single thread.
+ Discard information about the parent threads. */
+ first_cpu = thread_env;
+ thread_env->next_cpu = NULL;
+ pending_cpus = 0;
+ pthread_mutex_init(&exclusive_lock, NULL);
+ pthread_mutex_init(&cpu_list_mutex, NULL);
+ pthread_cond_init(&exclusive_cond, NULL);
+ pthread_cond_init(&exclusive_resume, NULL);
+ pthread_mutex_init(&tb_lock, NULL);
+ gdbserver_fork(thread_env);
+ } else {
+ pthread_mutex_unlock(&exclusive_lock);
+ pthread_mutex_unlock(&tb_lock);
+ }
+ mmap_fork_end(child);
+}
+
+/* Wait for pending exclusive operations to complete. The exclusive lock
+ must be held. */
+static inline void exclusive_idle(void)
+{
+ while (pending_cpus) {
+ pthread_cond_wait(&exclusive_resume, &exclusive_lock);
+ }
+}
+
+/* Start an exclusive operation.
+ Must only be called from outside cpu_arm_exec. */
+static inline void start_exclusive(void)
+{
+ CPUState *other;
+ pthread_mutex_lock(&exclusive_lock);
+ exclusive_idle();
+
+ pending_cpus = 1;
+ /* Make all other cpus stop executing. */
+ for (other = first_cpu; other; other = other->next_cpu) {
+ if (other->running) {
+ pending_cpus++;
+ cpu_exit(other);
+ }
+ }
+ if (pending_cpus > 1) {
+ pthread_cond_wait(&exclusive_cond, &exclusive_lock);
+ }
+}
+
+/* Finish an exclusive operation. */
+static inline void end_exclusive(void)
+{
+ pending_cpus = 0;
+ pthread_cond_broadcast(&exclusive_resume);
+ pthread_mutex_unlock(&exclusive_lock);
+}
+
+/* Wait for exclusive ops to finish, and begin cpu execution. */
+static inline void cpu_exec_start(CPUState *env)
+{
+ pthread_mutex_lock(&exclusive_lock);
+ exclusive_idle();
+ env->running = 1;
+ pthread_mutex_unlock(&exclusive_lock);
+}
+
+/* Mark cpu as not executing, and release pending exclusive ops. */
+static inline void cpu_exec_end(CPUState *env)
+{
+ pthread_mutex_lock(&exclusive_lock);
+ env->running = 0;
+ if (pending_cpus > 1) {
+ pending_cpus--;
+ if (pending_cpus == 1) {
+ pthread_cond_signal(&exclusive_cond);
+ }
+ }
+ exclusive_idle();
+ pthread_mutex_unlock(&exclusive_lock);
+}
+
+void cpu_list_lock(void)
+{
+ pthread_mutex_lock(&cpu_list_mutex);
+}
+
+void cpu_list_unlock(void)
+{
+ pthread_mutex_unlock(&cpu_list_mutex);
+}
+#else /* if !USE_NPTL */
+/* These are no-ops because we are not threadsafe. */
+static inline void cpu_exec_start(CPUState *env)
+{
+}
+
+static inline void cpu_exec_end(CPUState *env)
+{
+}
+
+static inline void start_exclusive(void)
+{
+}
+
+static inline void end_exclusive(void)
+{
+}
+
+void fork_start(void)
+{
+}
+
+void fork_end(int child)
+{
+ if (child) {
+ gdbserver_fork(thread_env);
+ }
+}
+
+void cpu_list_lock(void)
+{
+}
+
+void cpu_list_unlock(void)
+{
+}
+#endif
+
+
#ifdef TARGET_I386
/***********************************************************/
/* CPUX86 core interface */
e2 = ((addr >> 16) & 0xff) | (addr & 0xff000000) | (limit & 0x000f0000);
e2 |= flags;
p = ptr;
- p[0] = tswapl(e1);
- p[1] = tswapl(e2);
+ p[0] = tswap32(e1);
+ p[1] = tswap32(e2);
}
-#if TARGET_X86_64
-uint64_t idt_table[512];
-
+static uint64_t *idt_table;
+#ifdef TARGET_X86_64
static void set_gate64(void *ptr, unsigned int type, unsigned int dpl,
uint64_t addr, unsigned int sel)
{
set_gate64(idt_table + n * 2, 0, dpl, 0, 0);
}
#else
-uint64_t idt_table[256];
-
static void set_gate(void *ptr, unsigned int type, unsigned int dpl,
uint32_t addr, unsigned int sel)
{
queue_signal(env, info.si_signo, &info);
}
break;
- case EXCP01_SSTP:
+ case EXCP01_DB:
case EXCP03_INT3:
#ifndef TARGET_X86_64
if (env->eflags & VM_MASK) {
{
info.si_signo = SIGTRAP;
info.si_errno = 0;
- if (trapnr == EXCP01_SSTP) {
+ if (trapnr == EXCP01_DB) {
info.si_code = TARGET_TRAP_BRKPT;
info._sifields._sigfault._addr = env->eip;
} else {
#ifdef TARGET_ARM
-/* XXX: find a better solution */
-extern void tb_invalidate_page_range(abi_ulong start, abi_ulong end);
-
static void arm_cache_flush(abi_ulong start, abi_ulong last)
{
abi_ulong addr, last1;
/* ??? No-op. Will need to do better for SMP. */
break;
case 0xffff0fc0: /* __kernel_cmpxchg */
- /* ??? This is not really atomic. However we don't support
- threads anyway, so it doesn't realy matter. */
+ /* XXX: This only works between threads, not between processes.
+ It's probably possible to implement this with native host
+ operations. However things like ldrex/strex are much harder so
+ there's not much point trying. */
+ start_exclusive();
cpsr = cpsr_read(env);
addr = env->regs[2];
/* FIXME: This should SEGV if the access fails. */
cpsr &= ~CPSR_C;
}
cpsr_write(env, cpsr, CPSR_C);
+ end_exclusive();
break;
case 0xffff0fe0: /* __kernel_get_tls */
env->regs[0] = env->cp15.c13_tls2;
uint32_t addr;
for(;;) {
+ cpu_exec_start(env);
trapnr = cpu_arm_exec(env);
+ cpu_exec_end(env);
switch(trapnr) {
case EXCP_UDEF:
{
/* just indicate that signals should be handled asap */
break;
case EXCP_PREFETCH_ABORT:
- addr = env->cp15.c6_data;
+ addr = env->cp15.c6_insn;
goto do_segv;
case EXCP_DATA_ABORT:
- addr = env->cp15.c6_insn;
+ addr = env->cp15.c6_data;
goto do_segv;
do_segv:
{
#endif
#ifdef TARGET_SPARC
+#define SPARC64_STACK_BIAS 2047
//#define DEBUG_WIN
can be found at http://www.sics.se/~psm/sparcstack.html */
static inline int get_reg_index(CPUSPARCState *env, int cwp, int index)
{
- index = (index + cwp * 16) & (16 * NWINDOWS - 1);
+ index = (index + cwp * 16) % (16 * env->nwindows);
/* wrap handling : if cwp is on the last window, then we use the
registers 'after' the end */
- if (index < 8 && env->cwp == (NWINDOWS - 1))
- index += (16 * NWINDOWS);
+ if (index < 8 && env->cwp == env->nwindows - 1)
+ index += 16 * env->nwindows;
return index;
}
abi_ulong sp_ptr;
sp_ptr = env->regbase[get_reg_index(env, cwp1, 6)];
+#ifdef TARGET_SPARC64
+ if (sp_ptr & 3)
+ sp_ptr += SPARC64_STACK_BIAS;
+#endif
#if defined(DEBUG_WIN)
- printf("win_overflow: sp_ptr=0x%x save_cwp=%d\n",
- (int)sp_ptr, cwp1);
+ printf("win_overflow: sp_ptr=0x" TARGET_ABI_FMT_lx " save_cwp=%d\n",
+ sp_ptr, cwp1);
#endif
for(i = 0; i < 16; i++) {
/* FIXME - what to do if put_user() fails? */
{
#ifndef TARGET_SPARC64
unsigned int new_wim;
- new_wim = ((env->wim >> 1) | (env->wim << (NWINDOWS - 1))) &
- ((1LL << NWINDOWS) - 1);
- save_window_offset(env, (env->cwp - 2) & (NWINDOWS - 1));
+ new_wim = ((env->wim >> 1) | (env->wim << (env->nwindows - 1))) &
+ ((1LL << env->nwindows) - 1);
+ save_window_offset(env, cpu_cwp_dec(env, env->cwp - 2));
env->wim = new_wim;
#else
- save_window_offset(env, (env->cwp - 2) & (NWINDOWS - 1));
+ save_window_offset(env, cpu_cwp_dec(env, env->cwp - 2));
env->cansave++;
env->canrestore--;
#endif
static void restore_window(CPUSPARCState *env)
{
- unsigned int new_wim, i, cwp1;
+#ifndef TARGET_SPARC64
+ unsigned int new_wim;
+#endif
+ unsigned int i, cwp1;
abi_ulong sp_ptr;
- new_wim = ((env->wim << 1) | (env->wim >> (NWINDOWS - 1))) &
- ((1LL << NWINDOWS) - 1);
+#ifndef TARGET_SPARC64
+ new_wim = ((env->wim << 1) | (env->wim >> (env->nwindows - 1))) &
+ ((1LL << env->nwindows) - 1);
+#endif
/* restore the invalid window */
- cwp1 = (env->cwp + 1) & (NWINDOWS - 1);
+ cwp1 = cpu_cwp_inc(env, env->cwp + 1);
sp_ptr = env->regbase[get_reg_index(env, cwp1, 6)];
+#ifdef TARGET_SPARC64
+ if (sp_ptr & 3)
+ sp_ptr += SPARC64_STACK_BIAS;
+#endif
#if defined(DEBUG_WIN)
- printf("win_underflow: sp_ptr=0x%x load_cwp=%d\n",
- (int)sp_ptr, cwp1);
+ printf("win_underflow: sp_ptr=0x" TARGET_ABI_FMT_lx " load_cwp=%d\n",
+ sp_ptr, cwp1);
#endif
for(i = 0; i < 16; i++) {
/* FIXME - what to do if get_user() fails? */
get_user_ual(env->regbase[get_reg_index(env, cwp1, 8 + i)], sp_ptr);
sp_ptr += sizeof(abi_ulong);
}
- env->wim = new_wim;
#ifdef TARGET_SPARC64
env->canrestore++;
- if (env->cleanwin < NWINDOWS - 1)
- env->cleanwin++;
+ if (env->cleanwin < env->nwindows - 1)
+ env->cleanwin++;
env->cansave--;
+#else
+ env->wim = new_wim;
#endif
}
offset = 1;
for(;;) {
/* if restore would invoke restore_window(), then we can stop */
- cwp1 = (env->cwp + offset) & (NWINDOWS - 1);
+ cwp1 = cpu_cwp_inc(env, env->cwp + offset);
+#ifndef TARGET_SPARC64
if (env->wim & (1 << cwp1))
break;
+#else
+ if (env->canrestore == 0)
+ break;
+ env->cansave++;
+ env->canrestore--;
+#endif
save_window_offset(env, cwp1);
offset++;
}
+ cwp1 = cpu_cwp_inc(env, env->cwp + 1);
+#ifndef TARGET_SPARC64
/* set wim so that restore will reload the registers */
- cwp1 = (env->cwp + 1) & (NWINDOWS - 1);
env->wim = 1 << cwp1;
+#endif
#if defined(DEBUG_WIN)
printf("flush_windows: nb=%d\n", offset - 1);
#endif
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); \
- if (loglevel != 0) { \
- fprintf(logfile, fmt , ##args); \
- cpu_dump_state(env, logfile, fprintf, 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)
cpu_abort(env, "Instruction TLB exception while in user mode. "
"Aborting\n");
break;
- case POWERPC_EXCP_DEBUG: /* Debug interrupt */
- /* XXX: check this */
- {
- 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;
case POWERPC_EXCP_SPEU: /* SPE/embedded floating-point unavail. */
EXCP_DUMP(env, "No SPE/floating-point instruction allowed\n");
info.si_signo = TARGET_SIGILL;
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;
printf("syscall returned 0x%08x (%d)\n", ret, ret);
#endif
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;
case EXCP_INTERRUPT:
/* just indicate that signals should be handled asap */
break;
trapnr = cpu_mips_exec(env);
switch(trapnr) {
case EXCP_SYSCALL:
- syscall_num = env->gpr[env->current_tc][2] - 4000;
- env->PC[env->current_tc] += 4;
+ syscall_num = env->active_tc.gpr[2] - 4000;
+ env->active_tc.PC += 4;
if (syscall_num >= sizeof(mips_syscall_args)) {
ret = -ENOSYS;
} else {
abi_ulong arg5 = 0, arg6 = 0, arg7 = 0, arg8 = 0;
nb_args = mips_syscall_args[syscall_num];
- sp_reg = env->gpr[env->current_tc][29];
+ sp_reg = env->active_tc.gpr[29];
switch (nb_args) {
/* these arguments are taken from the stack */
/* FIXME - what to do if get_user() fails? */
default:
break;
}
- ret = do_syscall(env, env->gpr[env->current_tc][2],
- env->gpr[env->current_tc][4],
- env->gpr[env->current_tc][5],
- env->gpr[env->current_tc][6],
- env->gpr[env->current_tc][7],
+ ret = do_syscall(env, env->active_tc.gpr[2],
+ env->active_tc.gpr[4],
+ env->active_tc.gpr[5],
+ env->active_tc.gpr[6],
+ 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->gpr[env->current_tc][7] = 1; /* error flag */
+ env->active_tc.gpr[7] = 1; /* error flag */
ret = -ret;
} else {
- env->gpr[env->current_tc][7] = 0; /* error flag */
+ env->active_tc.gpr[7] = 0; /* error flag */
}
- env->gpr[env->current_tc][2] = ret;
+ env->active_tc.gpr[2] = 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;
switch (trapnr) {
case 0x160:
+ env->pc += 2;
ret = do_syscall(env,
env->gregs[3],
env->gregs[4],
env->gregs[0],
env->gregs[1]);
env->gregs[0] = ret;
- env->pc += 2;
break;
case EXCP_INTERRUPT:
/* just indicate that signals should be handled asap */
default:
printf ("Unhandled trap: 0x%x\n", trapnr);
cpu_dump_state(env, stderr, fprintf, 0);
- exit (1);
+ _exit (1);
}
process_pending_signals (env);
}
env->pregs[7],
env->pregs[11]);
env->regs[10] = ret;
- env->pc += 2;
+ 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_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:
{
exit(1);
break;
case EXCP_CALL_PAL ... (EXCP_CALL_PALP - 1):
- fprintf(stderr, "Call to PALcode\n");
call_pal(env, (trapnr >> 6) | 0x80);
break;
case EXCP_CALL_PALP ... (EXCP_CALL_PALE - 1):
}
#endif /* TARGET_ALPHA */
-void usage(void)
+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"
"-s size set the stack size in bytes (default=%ld)\n"
"-cpu model select CPU (-cpu ? for list)\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"
"QEMU_STRACE Print system calls and arguments similar to the\n"
" 'strace' program. Enable by setting to any value.\n"
+ "You can use -E and -U options to set/unset environment variables\n"
+ "for target process. It is possible to provide several variables\n"
+ "by repeating the option. For example:\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,
x86_stack_size,
DEBUG_LOGFILE);
- _exit(1);
+ exit(1);
}
-/* XXX: currently only used for async signals (see signal.c) */
-CPUState *global_env;
+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 i;
- memset(ts, 0, sizeof(TaskState));
ts->used = 1;
ts->first_free = ts->sigqueue_table;
for (i = 0; i < MAX_SIGQUEUE_SIZE - 1; i++) {
ts->sigqueue_table[i].next = NULL;
}
-int main(int argc, char **argv)
+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;
- int drop_ld_preload = 0, environ_count = 0;
- char **target_environ, **wrk, **dst;
+ 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();
+ qemu_cache_utils_init(envp);
+
/* init debug */
cpu_set_log_filename(DEBUG_LOGFILE);
+ if ((envlist = envlist_create()) == NULL) {
+ (void) fprintf(stderr, "Unable to allocate envlist\n");
+ exit(1);
+ }
+
+ /* add current environment into the list */
+ for (wrk = environ; *wrk != NULL; wrk++) {
+ (void) envlist_setenv(envlist, *wrk);
+ }
+
cpu_model = NULL;
optind = 1;
for(;;) {
break;
} else if (!strcmp(r, "d")) {
int mask;
- CPULogItem *item;
+ const CPULogItem *item;
if (optind >= argc)
break;
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_setenv(envlist, r) != 0)
+ usage();
+ } else if (!strcmp(r, "U")) {
+ 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;
r = argv[optind++];
x86_stack_size = strtol(r, (char **)&r, 0);
if (x86_stack_size <= 0)
} else if (!strcmp(r, "L")) {
interp_prefix = argv[optind++];
} else if (!strcmp(r, "p")) {
+ if (optind >= argc)
+ break;
qemu_host_page_size = atoi(argv[optind++]);
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)
+ break;
gdbstub_port = atoi(argv[optind++]);
} else if (!strcmp(r, "r")) {
qemu_uname_release = argv[optind++];
} else if (!strcmp(r, "cpu")) {
cpu_model = argv[optind++];
- if (strcmp(cpu_model, "?") == 0) {
+ if (cpu_model == NULL || strcmp(cpu_model, "?") == 0) {
/* XXX: implement xxx_cpu_list for targets that still miss it */
#if defined(cpu_list)
cpu_list(stdout, &fprintf);
#endif
- _exit(1);
+ 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")) {
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];
+ 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)
fprintf(stderr, "Unable to find CPU definition\n");
exit(1);
}
- global_env = env;
+ thread_env = env;
if (getenv("QEMU_STRACE")) {
do_strace = 1;
}
- wrk = environ;
- while (*(wrk++))
- environ_count++;
-
- target_environ = malloc((environ_count + 1) * sizeof(char *));
- if (!target_environ)
- abort();
- for (wrk = environ, dst = target_environ; *wrk; wrk++) {
- if (drop_ld_preload && !strncmp(*wrk, "LD_PRELOAD=", 11))
- continue;
- *(dst++) = strdup(*wrk);
+ target_environ = envlist_to_environ(envlist, NULL);
+ envlist_free(envlist);
+
+#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]);
}
- *dst = NULL; /* NULL terminate target_environ */
+ 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, argv+optind, target_environ, regs, info) != 0) {
+ 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 (loglevel) {
- page_dump(logfile);
-
- fprintf(logfile, "start_brk 0x" TARGET_ABI_FMT_lx "\n", info->start_brk);
- fprintf(logfile, "end_code 0x" TARGET_ABI_FMT_lx "\n", info->end_code);
- fprintf(logfile, "start_code 0x" TARGET_ABI_FMT_lx "\n",
- info->start_code);
- fprintf(logfile, "start_data 0x" TARGET_ABI_FMT_lx "\n",
- info->start_data);
- fprintf(logfile, "end_data 0x" TARGET_ABI_FMT_lx "\n", info->end_data);
- fprintf(logfile, "start_stack 0x" TARGET_ABI_FMT_lx "\n",
- info->start_stack);
- fprintf(logfile, "brk 0x" TARGET_ABI_FMT_lx "\n", info->brk);
- fprintf(logfile, "entry 0x" TARGET_ABI_FMT_lx "\n", info->entry);
+ 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);
+ qemu_log("end_code 0x" TARGET_ABI_FMT_lx "\n", info->end_code);
+ qemu_log("start_code 0x" TARGET_ABI_FMT_lx "\n",
+ info->start_code);
+ qemu_log("start_data 0x" TARGET_ABI_FMT_lx "\n",
+ info->start_data);
+ qemu_log("end_data 0x" TARGET_ABI_FMT_lx "\n", info->end_data);
+ qemu_log("start_stack 0x" TARGET_ABI_FMT_lx "\n",
+ info->start_stack);
+ qemu_log("brk 0x" TARGET_ABI_FMT_lx "\n", info->brk);
+ qemu_log("entry 0x" TARGET_ABI_FMT_lx "\n", info->entry);
}
target_set_brk(info->brk);
syscall_init();
signal_init();
- /* build Task State */
- memset(ts, 0, sizeof(TaskState));
- init_task_state(ts);
- ts->info = info;
- env->opaque = ts;
- env->user_mode_only = 1;
-
#if defined(TARGET_I386)
cpu_x86_set_cpl(env, 3);
#endif
/* linux interrupt setup */
- env->idt.base = h2g(idt_table);
- env->idt.limit = sizeof(idt_table) - 1;
+#ifndef TARGET_ABI32
+ env->idt.limit = 511;
+#else
+ env->idt.limit = 255;
+#endif
+ env->idt.base = target_mmap(0, sizeof(uint64_t) * (env->idt.limit + 1),
+ PROT_READ|PROT_WRITE,
+ MAP_ANONYMOUS|MAP_PRIVATE, -1, 0);
+ idt_table = g2h(env->idt.base);
set_idt(0, 0);
set_idt(1, 0);
set_idt(2, 0);
/* linux segment setup */
{
uint64_t *gdt_table;
- gdt_table = qemu_mallocz(sizeof(uint64_t) * TARGET_GDT_ENTRIES);
- env->gdt.base = h2g((unsigned long)gdt_table);
+ env->gdt.base = target_mmap(0, sizeof(uint64_t) * TARGET_GDT_ENTRIES,
+ PROT_READ|PROT_WRITE,
+ MAP_ANONYMOUS|MAP_PRIVATE, -1, 0);
env->gdt.limit = sizeof(uint64_t) * TARGET_GDT_ENTRIES - 1;
+ gdt_table = g2h(env->gdt.base);
#ifdef TARGET_ABI32
write_dt(&gdt_table[__USER_CS >> 3], 0, 0xfffff,
DESC_G_MASK | DESC_B_MASK | DESC_P_MASK | DESC_S_MASK |
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;
for(i = 0; i < 32; i++) {
- env->gpr[env->current_tc][i] = regs->regs[i];
+ env->active_tc.gpr[i] = regs->regs[i];
}
- env->PC[env->current_tc] = regs->cp0_epc;
+ env->active_tc.PC = regs->cp0_epc;
}
#elif defined(TARGET_SH4)
{
projects / qemu / blobdiff