4 * Copyright (c) 2003-2008 Fabrice Bellard
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, see <http://www.gnu.org/licenses/>.
26 #include <sys/syscall.h>
27 #include <sys/resource.h>
30 #include "qemu-common.h"
31 #include "cache-utils.h"
34 #include "qemu-timer.h"
38 #define DEBUG_LOGFILE "/tmp/qemu.log"
47 const char *cpu_model;
48 unsigned long mmap_min_addr;
49 #if defined(CONFIG_USE_GUEST_BASE)
50 unsigned long guest_base;
52 #if (TARGET_LONG_BITS == 32) && (HOST_LONG_BITS == 64)
54 * When running 32-on-64 we should make sure we can fit all of the possible
55 * guest address space into a contiguous chunk of virtual host memory.
57 * This way we will never overlap with our own libraries or binaries or stack
58 * or anything else that QEMU maps.
60 unsigned long reserved_va = 0xf7000000;
62 unsigned long reserved_va;
66 static void usage(void);
68 static const char *interp_prefix = CONFIG_QEMU_INTERP_PREFIX;
69 const char *qemu_uname_release = CONFIG_UNAME_RELEASE;
71 /* XXX: on x86 MAP_GROWSDOWN only works if ESP <= address + 32, so
72 we allocate a bigger stack. Need a better solution, for example
73 by remapping the process stack directly at the right place */
74 unsigned long guest_stack_size = 8 * 1024 * 1024UL;
76 void gemu_log(const char *fmt, ...)
81 vfprintf(stderr, fmt, ap);
85 #if defined(TARGET_I386)
86 int cpu_get_pic_interrupt(CPUX86State *env)
92 #if defined(CONFIG_USE_NPTL)
93 /***********************************************************/
94 /* Helper routines for implementing atomic operations. */
96 /* To implement exclusive operations we force all cpus to syncronise.
97 We don't require a full sync, only that no cpus are executing guest code.
98 The alternative is to map target atomic ops onto host equivalents,
99 which requires quite a lot of per host/target work. */
100 static pthread_mutex_t cpu_list_mutex = PTHREAD_MUTEX_INITIALIZER;
101 static pthread_mutex_t exclusive_lock = PTHREAD_MUTEX_INITIALIZER;
102 static pthread_cond_t exclusive_cond = PTHREAD_COND_INITIALIZER;
103 static pthread_cond_t exclusive_resume = PTHREAD_COND_INITIALIZER;
104 static int pending_cpus;
106 /* Make sure everything is in a consistent state for calling fork(). */
107 void fork_start(void)
109 pthread_mutex_lock(&tb_lock);
110 pthread_mutex_lock(&exclusive_lock);
114 void fork_end(int child)
116 mmap_fork_end(child);
118 /* Child processes created by fork() only have a single thread.
119 Discard information about the parent threads. */
120 first_cpu = thread_env;
121 thread_env->next_cpu = NULL;
123 pthread_mutex_init(&exclusive_lock, NULL);
124 pthread_mutex_init(&cpu_list_mutex, NULL);
125 pthread_cond_init(&exclusive_cond, NULL);
126 pthread_cond_init(&exclusive_resume, NULL);
127 pthread_mutex_init(&tb_lock, NULL);
128 gdbserver_fork(thread_env);
130 pthread_mutex_unlock(&exclusive_lock);
131 pthread_mutex_unlock(&tb_lock);
135 /* Wait for pending exclusive operations to complete. The exclusive lock
137 static inline void exclusive_idle(void)
139 while (pending_cpus) {
140 pthread_cond_wait(&exclusive_resume, &exclusive_lock);
144 /* Start an exclusive operation.
145 Must only be called from outside cpu_arm_exec. */
146 static inline void start_exclusive(void)
149 pthread_mutex_lock(&exclusive_lock);
153 /* Make all other cpus stop executing. */
154 for (other = first_cpu; other; other = other->next_cpu) {
155 if (other->running) {
160 if (pending_cpus > 1) {
161 pthread_cond_wait(&exclusive_cond, &exclusive_lock);
165 /* Finish an exclusive operation. */
166 static inline void end_exclusive(void)
169 pthread_cond_broadcast(&exclusive_resume);
170 pthread_mutex_unlock(&exclusive_lock);
173 /* Wait for exclusive ops to finish, and begin cpu execution. */
174 static inline void cpu_exec_start(CPUArchState *env)
176 pthread_mutex_lock(&exclusive_lock);
179 pthread_mutex_unlock(&exclusive_lock);
182 /* Mark cpu as not executing, and release pending exclusive ops. */
183 static inline void cpu_exec_end(CPUArchState *env)
185 pthread_mutex_lock(&exclusive_lock);
187 if (pending_cpus > 1) {
189 if (pending_cpus == 1) {
190 pthread_cond_signal(&exclusive_cond);
194 pthread_mutex_unlock(&exclusive_lock);
197 void cpu_list_lock(void)
199 pthread_mutex_lock(&cpu_list_mutex);
202 void cpu_list_unlock(void)
204 pthread_mutex_unlock(&cpu_list_mutex);
206 #else /* if !CONFIG_USE_NPTL */
207 /* These are no-ops because we are not threadsafe. */
208 static inline void cpu_exec_start(CPUArchState *env)
212 static inline void cpu_exec_end(CPUArchState *env)
216 static inline void start_exclusive(void)
220 static inline void end_exclusive(void)
224 void fork_start(void)
228 void fork_end(int child)
231 gdbserver_fork(thread_env);
235 void cpu_list_lock(void)
239 void cpu_list_unlock(void)
246 /***********************************************************/
247 /* CPUX86 core interface */
249 void cpu_smm_update(CPUX86State *env)
253 uint64_t cpu_get_tsc(CPUX86State *env)
255 return cpu_get_real_ticks();
258 static void write_dt(void *ptr, unsigned long addr, unsigned long limit,
263 e1 = (addr << 16) | (limit & 0xffff);
264 e2 = ((addr >> 16) & 0xff) | (addr & 0xff000000) | (limit & 0x000f0000);
271 static uint64_t *idt_table;
273 static void set_gate64(void *ptr, unsigned int type, unsigned int dpl,
274 uint64_t addr, unsigned int sel)
277 e1 = (addr & 0xffff) | (sel << 16);
278 e2 = (addr & 0xffff0000) | 0x8000 | (dpl << 13) | (type << 8);
282 p[2] = tswap32(addr >> 32);
285 /* only dpl matters as we do only user space emulation */
286 static void set_idt(int n, unsigned int dpl)
288 set_gate64(idt_table + n * 2, 0, dpl, 0, 0);
291 static void set_gate(void *ptr, unsigned int type, unsigned int dpl,
292 uint32_t addr, unsigned int sel)
295 e1 = (addr & 0xffff) | (sel << 16);
296 e2 = (addr & 0xffff0000) | 0x8000 | (dpl << 13) | (type << 8);
302 /* only dpl matters as we do only user space emulation */
303 static void set_idt(int n, unsigned int dpl)
305 set_gate(idt_table + n, 0, dpl, 0, 0);
309 void cpu_loop(CPUX86State *env)
313 target_siginfo_t info;
316 trapnr = cpu_x86_exec(env);
319 /* linux syscall from int $0x80 */
320 env->regs[R_EAX] = do_syscall(env,
332 /* linux syscall from syscall instruction */
333 env->regs[R_EAX] = do_syscall(env,
342 env->eip = env->exception_next_eip;
347 info.si_signo = SIGBUS;
349 info.si_code = TARGET_SI_KERNEL;
350 info._sifields._sigfault._addr = 0;
351 queue_signal(env, info.si_signo, &info);
354 /* XXX: potential problem if ABI32 */
355 #ifndef TARGET_X86_64
356 if (env->eflags & VM_MASK) {
357 handle_vm86_fault(env);
361 info.si_signo = SIGSEGV;
363 info.si_code = TARGET_SI_KERNEL;
364 info._sifields._sigfault._addr = 0;
365 queue_signal(env, info.si_signo, &info);
369 info.si_signo = SIGSEGV;
371 if (!(env->error_code & 1))
372 info.si_code = TARGET_SEGV_MAPERR;
374 info.si_code = TARGET_SEGV_ACCERR;
375 info._sifields._sigfault._addr = env->cr[2];
376 queue_signal(env, info.si_signo, &info);
379 #ifndef TARGET_X86_64
380 if (env->eflags & VM_MASK) {
381 handle_vm86_trap(env, trapnr);
385 /* division by zero */
386 info.si_signo = SIGFPE;
388 info.si_code = TARGET_FPE_INTDIV;
389 info._sifields._sigfault._addr = env->eip;
390 queue_signal(env, info.si_signo, &info);
395 #ifndef TARGET_X86_64
396 if (env->eflags & VM_MASK) {
397 handle_vm86_trap(env, trapnr);
401 info.si_signo = SIGTRAP;
403 if (trapnr == EXCP01_DB) {
404 info.si_code = TARGET_TRAP_BRKPT;
405 info._sifields._sigfault._addr = env->eip;
407 info.si_code = TARGET_SI_KERNEL;
408 info._sifields._sigfault._addr = 0;
410 queue_signal(env, info.si_signo, &info);
415 #ifndef TARGET_X86_64
416 if (env->eflags & VM_MASK) {
417 handle_vm86_trap(env, trapnr);
421 info.si_signo = SIGSEGV;
423 info.si_code = TARGET_SI_KERNEL;
424 info._sifields._sigfault._addr = 0;
425 queue_signal(env, info.si_signo, &info);
429 info.si_signo = SIGILL;
431 info.si_code = TARGET_ILL_ILLOPN;
432 info._sifields._sigfault._addr = env->eip;
433 queue_signal(env, info.si_signo, &info);
436 /* just indicate that signals should be handled asap */
442 sig = gdb_handlesig (env, TARGET_SIGTRAP);
447 info.si_code = TARGET_TRAP_BRKPT;
448 queue_signal(env, info.si_signo, &info);
453 pc = env->segs[R_CS].base + env->eip;
454 fprintf(stderr, "qemu: 0x%08lx: unhandled CPU exception 0x%x - aborting\n",
458 process_pending_signals(env);
465 #define get_user_code_u32(x, gaddr, doswap) \
466 ({ abi_long __r = get_user_u32((x), (gaddr)); \
467 if (!__r && (doswap)) { \
473 #define get_user_code_u16(x, gaddr, doswap) \
474 ({ abi_long __r = get_user_u16((x), (gaddr)); \
475 if (!__r && (doswap)) { \
482 * See the Linux kernel's Documentation/arm/kernel_user_helpers.txt
484 * r0 = pointer to oldval
485 * r1 = pointer to newval
486 * r2 = pointer to target value
489 * r0 = 0 if *ptr was changed, non-0 if no exchange happened
490 * C set if *ptr was changed, clear if no exchange happened
492 * Note segv's in kernel helpers are a bit tricky, we can set the
493 * data address sensibly but the PC address is just the entry point.
495 static void arm_kernel_cmpxchg64_helper(CPUARMState *env)
497 uint64_t oldval, newval, val;
499 target_siginfo_t info;
501 /* Based on the 32 bit code in do_kernel_trap */
503 /* XXX: This only works between threads, not between processes.
504 It's probably possible to implement this with native host
505 operations. However things like ldrex/strex are much harder so
506 there's not much point trying. */
508 cpsr = cpsr_read(env);
511 if (get_user_u64(oldval, env->regs[0])) {
512 env->cp15.c6_data = env->regs[0];
516 if (get_user_u64(newval, env->regs[1])) {
517 env->cp15.c6_data = env->regs[1];
521 if (get_user_u64(val, addr)) {
522 env->cp15.c6_data = addr;
529 if (put_user_u64(val, addr)) {
530 env->cp15.c6_data = addr;
540 cpsr_write(env, cpsr, CPSR_C);
546 /* We get the PC of the entry address - which is as good as anything,
547 on a real kernel what you get depends on which mode it uses. */
548 info.si_signo = SIGSEGV;
550 /* XXX: check env->error_code */
551 info.si_code = TARGET_SEGV_MAPERR;
552 info._sifields._sigfault._addr = env->cp15.c6_data;
553 queue_signal(env, info.si_signo, &info);
558 /* Handle a jump to the kernel code page. */
560 do_kernel_trap(CPUARMState *env)
566 switch (env->regs[15]) {
567 case 0xffff0fa0: /* __kernel_memory_barrier */
568 /* ??? No-op. Will need to do better for SMP. */
570 case 0xffff0fc0: /* __kernel_cmpxchg */
571 /* XXX: This only works between threads, not between processes.
572 It's probably possible to implement this with native host
573 operations. However things like ldrex/strex are much harder so
574 there's not much point trying. */
576 cpsr = cpsr_read(env);
578 /* FIXME: This should SEGV if the access fails. */
579 if (get_user_u32(val, addr))
581 if (val == env->regs[0]) {
583 /* FIXME: Check for segfaults. */
584 put_user_u32(val, addr);
591 cpsr_write(env, cpsr, CPSR_C);
594 case 0xffff0fe0: /* __kernel_get_tls */
595 env->regs[0] = env->cp15.c13_tls2;
597 case 0xffff0f60: /* __kernel_cmpxchg64 */
598 arm_kernel_cmpxchg64_helper(env);
604 /* Jump back to the caller. */
605 addr = env->regs[14];
610 env->regs[15] = addr;
615 static int do_strex(CPUARMState *env)
623 addr = env->exclusive_addr;
624 if (addr != env->exclusive_test) {
627 size = env->exclusive_info & 0xf;
630 segv = get_user_u8(val, addr);
633 segv = get_user_u16(val, addr);
637 segv = get_user_u32(val, addr);
643 env->cp15.c6_data = addr;
646 if (val != env->exclusive_val) {
650 segv = get_user_u32(val, addr + 4);
652 env->cp15.c6_data = addr + 4;
655 if (val != env->exclusive_high) {
659 val = env->regs[(env->exclusive_info >> 8) & 0xf];
662 segv = put_user_u8(val, addr);
665 segv = put_user_u16(val, addr);
669 segv = put_user_u32(val, addr);
673 env->cp15.c6_data = addr;
677 val = env->regs[(env->exclusive_info >> 12) & 0xf];
678 segv = put_user_u32(val, addr + 4);
680 env->cp15.c6_data = addr + 4;
687 env->regs[(env->exclusive_info >> 4) & 0xf] = rc;
693 void cpu_loop(CPUARMState *env)
696 unsigned int n, insn;
697 target_siginfo_t info;
702 trapnr = cpu_arm_exec(env);
707 TaskState *ts = env->opaque;
711 /* we handle the FPU emulation here, as Linux */
712 /* we get the opcode */
713 /* FIXME - what to do if get_user() fails? */
714 get_user_code_u32(opcode, env->regs[15], env->bswap_code);
716 rc = EmulateAll(opcode, &ts->fpa, env);
717 if (rc == 0) { /* illegal instruction */
718 info.si_signo = SIGILL;
720 info.si_code = TARGET_ILL_ILLOPN;
721 info._sifields._sigfault._addr = env->regs[15];
722 queue_signal(env, info.si_signo, &info);
723 } else if (rc < 0) { /* FP exception */
726 /* translate softfloat flags to FPSR flags */
727 if (-rc & float_flag_invalid)
729 if (-rc & float_flag_divbyzero)
731 if (-rc & float_flag_overflow)
733 if (-rc & float_flag_underflow)
735 if (-rc & float_flag_inexact)
738 FPSR fpsr = ts->fpa.fpsr;
739 //printf("fpsr 0x%x, arm_fpe 0x%x\n",fpsr,arm_fpe);
741 if (fpsr & (arm_fpe << 16)) { /* exception enabled? */
742 info.si_signo = SIGFPE;
745 /* ordered by priority, least first */
746 if (arm_fpe & BIT_IXC) info.si_code = TARGET_FPE_FLTRES;
747 if (arm_fpe & BIT_UFC) info.si_code = TARGET_FPE_FLTUND;
748 if (arm_fpe & BIT_OFC) info.si_code = TARGET_FPE_FLTOVF;
749 if (arm_fpe & BIT_DZC) info.si_code = TARGET_FPE_FLTDIV;
750 if (arm_fpe & BIT_IOC) info.si_code = TARGET_FPE_FLTINV;
752 info._sifields._sigfault._addr = env->regs[15];
753 queue_signal(env, info.si_signo, &info);
758 /* accumulate unenabled exceptions */
759 if ((!(fpsr & BIT_IXE)) && (arm_fpe & BIT_IXC))
761 if ((!(fpsr & BIT_UFE)) && (arm_fpe & BIT_UFC))
763 if ((!(fpsr & BIT_OFE)) && (arm_fpe & BIT_OFC))
765 if ((!(fpsr & BIT_DZE)) && (arm_fpe & BIT_DZC))
767 if ((!(fpsr & BIT_IOE)) && (arm_fpe & BIT_IOC))
770 } else { /* everything OK */
781 if (trapnr == EXCP_BKPT) {
783 /* FIXME - what to do if get_user() fails? */
784 get_user_code_u16(insn, env->regs[15], env->bswap_code);
788 /* FIXME - what to do if get_user() fails? */
789 get_user_code_u32(insn, env->regs[15], env->bswap_code);
790 n = (insn & 0xf) | ((insn >> 4) & 0xff0);
795 /* FIXME - what to do if get_user() fails? */
796 get_user_code_u16(insn, env->regs[15] - 2,
800 /* FIXME - what to do if get_user() fails? */
801 get_user_code_u32(insn, env->regs[15] - 4,
807 if (n == ARM_NR_cacheflush) {
809 } else if (n == ARM_NR_semihosting
810 || n == ARM_NR_thumb_semihosting) {
811 env->regs[0] = do_arm_semihosting (env);
812 } else if (n == 0 || n >= ARM_SYSCALL_BASE || env->thumb) {
814 if (env->thumb || n == 0) {
817 n -= ARM_SYSCALL_BASE;
820 if ( n > ARM_NR_BASE) {
822 case ARM_NR_cacheflush:
826 cpu_set_tls(env, env->regs[0]);
830 gemu_log("qemu: Unsupported ARM syscall: 0x%x\n",
832 env->regs[0] = -TARGET_ENOSYS;
836 env->regs[0] = do_syscall(env,
852 /* just indicate that signals should be handled asap */
854 case EXCP_PREFETCH_ABORT:
855 addr = env->cp15.c6_insn;
857 case EXCP_DATA_ABORT:
858 addr = env->cp15.c6_data;
861 info.si_signo = SIGSEGV;
863 /* XXX: check env->error_code */
864 info.si_code = TARGET_SEGV_MAPERR;
865 info._sifields._sigfault._addr = addr;
866 queue_signal(env, info.si_signo, &info);
873 sig = gdb_handlesig (env, TARGET_SIGTRAP);
878 info.si_code = TARGET_TRAP_BRKPT;
879 queue_signal(env, info.si_signo, &info);
883 case EXCP_KERNEL_TRAP:
884 if (do_kernel_trap(env))
889 addr = env->cp15.c6_data;
895 fprintf(stderr, "qemu: unhandled CPU exception 0x%x - aborting\n",
897 cpu_dump_state(env, stderr, fprintf, 0);
900 process_pending_signals(env);
906 #ifdef TARGET_UNICORE32
908 void cpu_loop(CPUUniCore32State *env)
911 unsigned int n, insn;
912 target_siginfo_t info;
916 trapnr = uc32_cpu_exec(env);
922 get_user_u32(insn, env->regs[31] - 4);
925 if (n >= UC32_SYSCALL_BASE) {
927 n -= UC32_SYSCALL_BASE;
928 if (n == UC32_SYSCALL_NR_set_tls) {
929 cpu_set_tls(env, env->regs[0]);
932 env->regs[0] = do_syscall(env,
947 case UC32_EXCP_DTRAP:
948 case UC32_EXCP_ITRAP:
949 info.si_signo = SIGSEGV;
951 /* XXX: check env->error_code */
952 info.si_code = TARGET_SEGV_MAPERR;
953 info._sifields._sigfault._addr = env->cp0.c4_faultaddr;
954 queue_signal(env, info.si_signo, &info);
957 /* just indicate that signals should be handled asap */
963 sig = gdb_handlesig(env, TARGET_SIGTRAP);
967 info.si_code = TARGET_TRAP_BRKPT;
968 queue_signal(env, info.si_signo, &info);
975 process_pending_signals(env);
979 fprintf(stderr, "qemu: unhandled CPU exception 0x%x - aborting\n", trapnr);
980 cpu_dump_state(env, stderr, fprintf, 0);
986 #define SPARC64_STACK_BIAS 2047
990 /* WARNING: dealing with register windows _is_ complicated. More info
991 can be found at http://www.sics.se/~psm/sparcstack.html */
992 static inline int get_reg_index(CPUSPARCState *env, int cwp, int index)
994 index = (index + cwp * 16) % (16 * env->nwindows);
995 /* wrap handling : if cwp is on the last window, then we use the
996 registers 'after' the end */
997 if (index < 8 && env->cwp == env->nwindows - 1)
998 index += 16 * env->nwindows;
1002 /* save the register window 'cwp1' */
1003 static inline void save_window_offset(CPUSPARCState *env, int cwp1)
1008 sp_ptr = env->regbase[get_reg_index(env, cwp1, 6)];
1009 #ifdef TARGET_SPARC64
1011 sp_ptr += SPARC64_STACK_BIAS;
1013 #if defined(DEBUG_WIN)
1014 printf("win_overflow: sp_ptr=0x" TARGET_ABI_FMT_lx " save_cwp=%d\n",
1017 for(i = 0; i < 16; i++) {
1018 /* FIXME - what to do if put_user() fails? */
1019 put_user_ual(env->regbase[get_reg_index(env, cwp1, 8 + i)], sp_ptr);
1020 sp_ptr += sizeof(abi_ulong);
1024 static void save_window(CPUSPARCState *env)
1026 #ifndef TARGET_SPARC64
1027 unsigned int new_wim;
1028 new_wim = ((env->wim >> 1) | (env->wim << (env->nwindows - 1))) &
1029 ((1LL << env->nwindows) - 1);
1030 save_window_offset(env, cpu_cwp_dec(env, env->cwp - 2));
1033 save_window_offset(env, cpu_cwp_dec(env, env->cwp - 2));
1039 static void restore_window(CPUSPARCState *env)
1041 #ifndef TARGET_SPARC64
1042 unsigned int new_wim;
1044 unsigned int i, cwp1;
1047 #ifndef TARGET_SPARC64
1048 new_wim = ((env->wim << 1) | (env->wim >> (env->nwindows - 1))) &
1049 ((1LL << env->nwindows) - 1);
1052 /* restore the invalid window */
1053 cwp1 = cpu_cwp_inc(env, env->cwp + 1);
1054 sp_ptr = env->regbase[get_reg_index(env, cwp1, 6)];
1055 #ifdef TARGET_SPARC64
1057 sp_ptr += SPARC64_STACK_BIAS;
1059 #if defined(DEBUG_WIN)
1060 printf("win_underflow: sp_ptr=0x" TARGET_ABI_FMT_lx " load_cwp=%d\n",
1063 for(i = 0; i < 16; i++) {
1064 /* FIXME - what to do if get_user() fails? */
1065 get_user_ual(env->regbase[get_reg_index(env, cwp1, 8 + i)], sp_ptr);
1066 sp_ptr += sizeof(abi_ulong);
1068 #ifdef TARGET_SPARC64
1070 if (env->cleanwin < env->nwindows - 1)
1078 static void flush_windows(CPUSPARCState *env)
1084 /* if restore would invoke restore_window(), then we can stop */
1085 cwp1 = cpu_cwp_inc(env, env->cwp + offset);
1086 #ifndef TARGET_SPARC64
1087 if (env->wim & (1 << cwp1))
1090 if (env->canrestore == 0)
1095 save_window_offset(env, cwp1);
1098 cwp1 = cpu_cwp_inc(env, env->cwp + 1);
1099 #ifndef TARGET_SPARC64
1100 /* set wim so that restore will reload the registers */
1101 env->wim = 1 << cwp1;
1103 #if defined(DEBUG_WIN)
1104 printf("flush_windows: nb=%d\n", offset - 1);
1108 void cpu_loop (CPUSPARCState *env)
1112 target_siginfo_t info;
1115 trapnr = cpu_sparc_exec (env);
1118 #ifndef TARGET_SPARC64
1125 ret = do_syscall (env, env->gregs[1],
1126 env->regwptr[0], env->regwptr[1],
1127 env->regwptr[2], env->regwptr[3],
1128 env->regwptr[4], env->regwptr[5],
1130 if ((abi_ulong)ret >= (abi_ulong)(-515)) {
1131 #if defined(TARGET_SPARC64) && !defined(TARGET_ABI32)
1132 env->xcc |= PSR_CARRY;
1134 env->psr |= PSR_CARRY;
1138 #if defined(TARGET_SPARC64) && !defined(TARGET_ABI32)
1139 env->xcc &= ~PSR_CARRY;
1141 env->psr &= ~PSR_CARRY;
1144 env->regwptr[0] = ret;
1145 /* next instruction */
1147 env->npc = env->npc + 4;
1149 case 0x83: /* flush windows */
1154 /* next instruction */
1156 env->npc = env->npc + 4;
1158 #ifndef TARGET_SPARC64
1159 case TT_WIN_OVF: /* window overflow */
1162 case TT_WIN_UNF: /* window underflow */
1163 restore_window(env);
1168 info.si_signo = TARGET_SIGSEGV;
1170 /* XXX: check env->error_code */
1171 info.si_code = TARGET_SEGV_MAPERR;
1172 info._sifields._sigfault._addr = env->mmuregs[4];
1173 queue_signal(env, info.si_signo, &info);
1177 case TT_SPILL: /* window overflow */
1180 case TT_FILL: /* window underflow */
1181 restore_window(env);
1186 info.si_signo = TARGET_SIGSEGV;
1188 /* XXX: check env->error_code */
1189 info.si_code = TARGET_SEGV_MAPERR;
1190 if (trapnr == TT_DFAULT)
1191 info._sifields._sigfault._addr = env->dmmuregs[4];
1193 info._sifields._sigfault._addr = cpu_tsptr(env)->tpc;
1194 queue_signal(env, info.si_signo, &info);
1197 #ifndef TARGET_ABI32
1200 sparc64_get_context(env);
1204 sparc64_set_context(env);
1208 case EXCP_INTERRUPT:
1209 /* just indicate that signals should be handled asap */
1213 info.si_signo = TARGET_SIGILL;
1215 info.si_code = TARGET_ILL_ILLOPC;
1216 info._sifields._sigfault._addr = env->pc;
1217 queue_signal(env, info.si_signo, &info);
1224 sig = gdb_handlesig (env, TARGET_SIGTRAP);
1227 info.si_signo = sig;
1229 info.si_code = TARGET_TRAP_BRKPT;
1230 queue_signal(env, info.si_signo, &info);
1235 printf ("Unhandled trap: 0x%x\n", trapnr);
1236 cpu_dump_state(env, stderr, fprintf, 0);
1239 process_pending_signals (env);
1246 static inline uint64_t cpu_ppc_get_tb(CPUPPCState *env)
1252 uint64_t cpu_ppc_load_tbl(CPUPPCState *env)
1254 return cpu_ppc_get_tb(env);
1257 uint32_t cpu_ppc_load_tbu(CPUPPCState *env)
1259 return cpu_ppc_get_tb(env) >> 32;
1262 uint64_t cpu_ppc_load_atbl(CPUPPCState *env)
1264 return cpu_ppc_get_tb(env);
1267 uint32_t cpu_ppc_load_atbu(CPUPPCState *env)
1269 return cpu_ppc_get_tb(env) >> 32;
1272 uint32_t cpu_ppc601_load_rtcu(CPUPPCState *env)
1273 __attribute__ (( alias ("cpu_ppc_load_tbu") ));
1275 uint32_t cpu_ppc601_load_rtcl(CPUPPCState *env)
1277 return cpu_ppc_load_tbl(env) & 0x3FFFFF80;
1280 /* XXX: to be fixed */
1281 int ppc_dcr_read (ppc_dcr_t *dcr_env, int dcrn, uint32_t *valp)
1286 int ppc_dcr_write (ppc_dcr_t *dcr_env, int dcrn, uint32_t val)
1291 #define EXCP_DUMP(env, fmt, ...) \
1293 fprintf(stderr, fmt , ## __VA_ARGS__); \
1294 cpu_dump_state(env, stderr, fprintf, 0); \
1295 qemu_log(fmt, ## __VA_ARGS__); \
1296 if (qemu_log_enabled()) { \
1297 log_cpu_state(env, 0); \
1301 static int do_store_exclusive(CPUPPCState *env)
1304 target_ulong page_addr;
1309 addr = env->reserve_ea;
1310 page_addr = addr & TARGET_PAGE_MASK;
1313 flags = page_get_flags(page_addr);
1314 if ((flags & PAGE_READ) == 0) {
1317 int reg = env->reserve_info & 0x1f;
1318 int size = (env->reserve_info >> 5) & 0xf;
1321 if (addr == env->reserve_addr) {
1323 case 1: segv = get_user_u8(val, addr); break;
1324 case 2: segv = get_user_u16(val, addr); break;
1325 case 4: segv = get_user_u32(val, addr); break;
1326 #if defined(TARGET_PPC64)
1327 case 8: segv = get_user_u64(val, addr); break;
1331 if (!segv && val == env->reserve_val) {
1332 val = env->gpr[reg];
1334 case 1: segv = put_user_u8(val, addr); break;
1335 case 2: segv = put_user_u16(val, addr); break;
1336 case 4: segv = put_user_u32(val, addr); break;
1337 #if defined(TARGET_PPC64)
1338 case 8: segv = put_user_u64(val, addr); break;
1347 env->crf[0] = (stored << 1) | xer_so;
1348 env->reserve_addr = (target_ulong)-1;
1358 void cpu_loop(CPUPPCState *env)
1360 target_siginfo_t info;
1365 cpu_exec_start(env);
1366 trapnr = cpu_ppc_exec(env);
1369 case POWERPC_EXCP_NONE:
1372 case POWERPC_EXCP_CRITICAL: /* Critical input */
1373 cpu_abort(env, "Critical interrupt while in user mode. "
1376 case POWERPC_EXCP_MCHECK: /* Machine check exception */
1377 cpu_abort(env, "Machine check exception while in user mode. "
1380 case POWERPC_EXCP_DSI: /* Data storage exception */
1381 EXCP_DUMP(env, "Invalid data memory access: 0x" TARGET_FMT_lx "\n",
1383 /* XXX: check this. Seems bugged */
1384 switch (env->error_code & 0xFF000000) {
1386 info.si_signo = TARGET_SIGSEGV;
1388 info.si_code = TARGET_SEGV_MAPERR;
1391 info.si_signo = TARGET_SIGILL;
1393 info.si_code = TARGET_ILL_ILLADR;
1396 info.si_signo = TARGET_SIGSEGV;
1398 info.si_code = TARGET_SEGV_ACCERR;
1401 /* Let's send a regular segfault... */
1402 EXCP_DUMP(env, "Invalid segfault errno (%02x)\n",
1404 info.si_signo = TARGET_SIGSEGV;
1406 info.si_code = TARGET_SEGV_MAPERR;
1409 info._sifields._sigfault._addr = env->nip;
1410 queue_signal(env, info.si_signo, &info);
1412 case POWERPC_EXCP_ISI: /* Instruction storage exception */
1413 EXCP_DUMP(env, "Invalid instruction fetch: 0x\n" TARGET_FMT_lx
1414 "\n", env->spr[SPR_SRR0]);
1415 /* XXX: check this */
1416 switch (env->error_code & 0xFF000000) {
1418 info.si_signo = TARGET_SIGSEGV;
1420 info.si_code = TARGET_SEGV_MAPERR;
1424 info.si_signo = TARGET_SIGSEGV;
1426 info.si_code = TARGET_SEGV_ACCERR;
1429 /* Let's send a regular segfault... */
1430 EXCP_DUMP(env, "Invalid segfault errno (%02x)\n",
1432 info.si_signo = TARGET_SIGSEGV;
1434 info.si_code = TARGET_SEGV_MAPERR;
1437 info._sifields._sigfault._addr = env->nip - 4;
1438 queue_signal(env, info.si_signo, &info);
1440 case POWERPC_EXCP_EXTERNAL: /* External input */
1441 cpu_abort(env, "External interrupt while in user mode. "
1444 case POWERPC_EXCP_ALIGN: /* Alignment exception */
1445 EXCP_DUMP(env, "Unaligned memory access\n");
1446 /* XXX: check this */
1447 info.si_signo = TARGET_SIGBUS;
1449 info.si_code = TARGET_BUS_ADRALN;
1450 info._sifields._sigfault._addr = env->nip - 4;
1451 queue_signal(env, info.si_signo, &info);
1453 case POWERPC_EXCP_PROGRAM: /* Program exception */
1454 /* XXX: check this */
1455 switch (env->error_code & ~0xF) {
1456 case POWERPC_EXCP_FP:
1457 EXCP_DUMP(env, "Floating point program exception\n");
1458 info.si_signo = TARGET_SIGFPE;
1460 switch (env->error_code & 0xF) {
1461 case POWERPC_EXCP_FP_OX:
1462 info.si_code = TARGET_FPE_FLTOVF;
1464 case POWERPC_EXCP_FP_UX:
1465 info.si_code = TARGET_FPE_FLTUND;
1467 case POWERPC_EXCP_FP_ZX:
1468 case POWERPC_EXCP_FP_VXZDZ:
1469 info.si_code = TARGET_FPE_FLTDIV;
1471 case POWERPC_EXCP_FP_XX:
1472 info.si_code = TARGET_FPE_FLTRES;
1474 case POWERPC_EXCP_FP_VXSOFT:
1475 info.si_code = TARGET_FPE_FLTINV;
1477 case POWERPC_EXCP_FP_VXSNAN:
1478 case POWERPC_EXCP_FP_VXISI:
1479 case POWERPC_EXCP_FP_VXIDI:
1480 case POWERPC_EXCP_FP_VXIMZ:
1481 case POWERPC_EXCP_FP_VXVC:
1482 case POWERPC_EXCP_FP_VXSQRT:
1483 case POWERPC_EXCP_FP_VXCVI:
1484 info.si_code = TARGET_FPE_FLTSUB;
1487 EXCP_DUMP(env, "Unknown floating point exception (%02x)\n",
1492 case POWERPC_EXCP_INVAL:
1493 EXCP_DUMP(env, "Invalid instruction\n");
1494 info.si_signo = TARGET_SIGILL;
1496 switch (env->error_code & 0xF) {
1497 case POWERPC_EXCP_INVAL_INVAL:
1498 info.si_code = TARGET_ILL_ILLOPC;
1500 case POWERPC_EXCP_INVAL_LSWX:
1501 info.si_code = TARGET_ILL_ILLOPN;
1503 case POWERPC_EXCP_INVAL_SPR:
1504 info.si_code = TARGET_ILL_PRVREG;
1506 case POWERPC_EXCP_INVAL_FP:
1507 info.si_code = TARGET_ILL_COPROC;
1510 EXCP_DUMP(env, "Unknown invalid operation (%02x)\n",
1511 env->error_code & 0xF);
1512 info.si_code = TARGET_ILL_ILLADR;
1516 case POWERPC_EXCP_PRIV:
1517 EXCP_DUMP(env, "Privilege violation\n");
1518 info.si_signo = TARGET_SIGILL;
1520 switch (env->error_code & 0xF) {
1521 case POWERPC_EXCP_PRIV_OPC:
1522 info.si_code = TARGET_ILL_PRVOPC;
1524 case POWERPC_EXCP_PRIV_REG:
1525 info.si_code = TARGET_ILL_PRVREG;
1528 EXCP_DUMP(env, "Unknown privilege violation (%02x)\n",
1529 env->error_code & 0xF);
1530 info.si_code = TARGET_ILL_PRVOPC;
1534 case POWERPC_EXCP_TRAP:
1535 cpu_abort(env, "Tried to call a TRAP\n");
1538 /* Should not happen ! */
1539 cpu_abort(env, "Unknown program exception (%02x)\n",
1543 info._sifields._sigfault._addr = env->nip - 4;
1544 queue_signal(env, info.si_signo, &info);
1546 case POWERPC_EXCP_FPU: /* Floating-point unavailable exception */
1547 EXCP_DUMP(env, "No floating point allowed\n");
1548 info.si_signo = TARGET_SIGILL;
1550 info.si_code = TARGET_ILL_COPROC;
1551 info._sifields._sigfault._addr = env->nip - 4;
1552 queue_signal(env, info.si_signo, &info);
1554 case POWERPC_EXCP_SYSCALL: /* System call exception */
1555 cpu_abort(env, "Syscall exception while in user mode. "
1558 case POWERPC_EXCP_APU: /* Auxiliary processor unavailable */
1559 EXCP_DUMP(env, "No APU instruction allowed\n");
1560 info.si_signo = TARGET_SIGILL;
1562 info.si_code = TARGET_ILL_COPROC;
1563 info._sifields._sigfault._addr = env->nip - 4;
1564 queue_signal(env, info.si_signo, &info);
1566 case POWERPC_EXCP_DECR: /* Decrementer exception */
1567 cpu_abort(env, "Decrementer interrupt while in user mode. "
1570 case POWERPC_EXCP_FIT: /* Fixed-interval timer interrupt */
1571 cpu_abort(env, "Fix interval timer interrupt while in user mode. "
1574 case POWERPC_EXCP_WDT: /* Watchdog timer interrupt */
1575 cpu_abort(env, "Watchdog timer interrupt while in user mode. "
1578 case POWERPC_EXCP_DTLB: /* Data TLB error */
1579 cpu_abort(env, "Data TLB exception while in user mode. "
1582 case POWERPC_EXCP_ITLB: /* Instruction TLB error */
1583 cpu_abort(env, "Instruction TLB exception while in user mode. "
1586 case POWERPC_EXCP_SPEU: /* SPE/embedded floating-point unavail. */
1587 EXCP_DUMP(env, "No SPE/floating-point instruction allowed\n");
1588 info.si_signo = TARGET_SIGILL;
1590 info.si_code = TARGET_ILL_COPROC;
1591 info._sifields._sigfault._addr = env->nip - 4;
1592 queue_signal(env, info.si_signo, &info);
1594 case POWERPC_EXCP_EFPDI: /* Embedded floating-point data IRQ */
1595 cpu_abort(env, "Embedded floating-point data IRQ not handled\n");
1597 case POWERPC_EXCP_EFPRI: /* Embedded floating-point round IRQ */
1598 cpu_abort(env, "Embedded floating-point round IRQ not handled\n");
1600 case POWERPC_EXCP_EPERFM: /* Embedded performance monitor IRQ */
1601 cpu_abort(env, "Performance monitor exception not handled\n");
1603 case POWERPC_EXCP_DOORI: /* Embedded doorbell interrupt */
1604 cpu_abort(env, "Doorbell interrupt while in user mode. "
1607 case POWERPC_EXCP_DOORCI: /* Embedded doorbell critical interrupt */
1608 cpu_abort(env, "Doorbell critical interrupt while in user mode. "
1611 case POWERPC_EXCP_RESET: /* System reset exception */
1612 cpu_abort(env, "Reset interrupt while in user mode. "
1615 case POWERPC_EXCP_DSEG: /* Data segment exception */
1616 cpu_abort(env, "Data segment exception while in user mode. "
1619 case POWERPC_EXCP_ISEG: /* Instruction segment exception */
1620 cpu_abort(env, "Instruction segment exception "
1621 "while in user mode. Aborting\n");
1623 /* PowerPC 64 with hypervisor mode support */
1624 case POWERPC_EXCP_HDECR: /* Hypervisor decrementer exception */
1625 cpu_abort(env, "Hypervisor decrementer interrupt "
1626 "while in user mode. Aborting\n");
1628 case POWERPC_EXCP_TRACE: /* Trace exception */
1630 * we use this exception to emulate step-by-step execution mode.
1633 /* PowerPC 64 with hypervisor mode support */
1634 case POWERPC_EXCP_HDSI: /* Hypervisor data storage exception */
1635 cpu_abort(env, "Hypervisor data storage exception "
1636 "while in user mode. Aborting\n");
1638 case POWERPC_EXCP_HISI: /* Hypervisor instruction storage excp */
1639 cpu_abort(env, "Hypervisor instruction storage exception "
1640 "while in user mode. Aborting\n");
1642 case POWERPC_EXCP_HDSEG: /* Hypervisor data segment exception */
1643 cpu_abort(env, "Hypervisor data segment exception "
1644 "while in user mode. Aborting\n");
1646 case POWERPC_EXCP_HISEG: /* Hypervisor instruction segment excp */
1647 cpu_abort(env, "Hypervisor instruction segment exception "
1648 "while in user mode. Aborting\n");
1650 case POWERPC_EXCP_VPU: /* Vector unavailable exception */
1651 EXCP_DUMP(env, "No Altivec instructions allowed\n");
1652 info.si_signo = TARGET_SIGILL;
1654 info.si_code = TARGET_ILL_COPROC;
1655 info._sifields._sigfault._addr = env->nip - 4;
1656 queue_signal(env, info.si_signo, &info);
1658 case POWERPC_EXCP_PIT: /* Programmable interval timer IRQ */
1659 cpu_abort(env, "Programmable interval timer interrupt "
1660 "while in user mode. Aborting\n");
1662 case POWERPC_EXCP_IO: /* IO error exception */
1663 cpu_abort(env, "IO error exception while in user mode. "
1666 case POWERPC_EXCP_RUNM: /* Run mode exception */
1667 cpu_abort(env, "Run mode exception while in user mode. "
1670 case POWERPC_EXCP_EMUL: /* Emulation trap exception */
1671 cpu_abort(env, "Emulation trap exception not handled\n");
1673 case POWERPC_EXCP_IFTLB: /* Instruction fetch TLB error */
1674 cpu_abort(env, "Instruction fetch TLB exception "
1675 "while in user-mode. Aborting");
1677 case POWERPC_EXCP_DLTLB: /* Data load TLB miss */
1678 cpu_abort(env, "Data load TLB exception while in user-mode. "
1681 case POWERPC_EXCP_DSTLB: /* Data store TLB miss */
1682 cpu_abort(env, "Data store TLB exception while in user-mode. "
1685 case POWERPC_EXCP_FPA: /* Floating-point assist exception */
1686 cpu_abort(env, "Floating-point assist exception not handled\n");
1688 case POWERPC_EXCP_IABR: /* Instruction address breakpoint */
1689 cpu_abort(env, "Instruction address breakpoint exception "
1692 case POWERPC_EXCP_SMI: /* System management interrupt */
1693 cpu_abort(env, "System management interrupt while in user mode. "
1696 case POWERPC_EXCP_THERM: /* Thermal interrupt */
1697 cpu_abort(env, "Thermal interrupt interrupt while in user mode. "
1700 case POWERPC_EXCP_PERFM: /* Embedded performance monitor IRQ */
1701 cpu_abort(env, "Performance monitor exception not handled\n");
1703 case POWERPC_EXCP_VPUA: /* Vector assist exception */
1704 cpu_abort(env, "Vector assist exception not handled\n");
1706 case POWERPC_EXCP_SOFTP: /* Soft patch exception */
1707 cpu_abort(env, "Soft patch exception not handled\n");
1709 case POWERPC_EXCP_MAINT: /* Maintenance exception */
1710 cpu_abort(env, "Maintenance exception while in user mode. "
1713 case POWERPC_EXCP_STOP: /* stop translation */
1714 /* We did invalidate the instruction cache. Go on */
1716 case POWERPC_EXCP_BRANCH: /* branch instruction: */
1717 /* We just stopped because of a branch. Go on */
1719 case POWERPC_EXCP_SYSCALL_USER:
1720 /* system call in user-mode emulation */
1722 * PPC ABI uses overflow flag in cr0 to signal an error
1725 env->crf[0] &= ~0x1;
1726 ret = do_syscall(env, env->gpr[0], env->gpr[3], env->gpr[4],
1727 env->gpr[5], env->gpr[6], env->gpr[7],
1729 if (ret == (target_ulong)(-TARGET_QEMU_ESIGRETURN)) {
1730 /* Returning from a successful sigreturn syscall.
1731 Avoid corrupting register state. */
1734 if (ret > (target_ulong)(-515)) {
1740 case POWERPC_EXCP_STCX:
1741 if (do_store_exclusive(env)) {
1742 info.si_signo = TARGET_SIGSEGV;
1744 info.si_code = TARGET_SEGV_MAPERR;
1745 info._sifields._sigfault._addr = env->nip;
1746 queue_signal(env, info.si_signo, &info);
1753 sig = gdb_handlesig(env, TARGET_SIGTRAP);
1755 info.si_signo = sig;
1757 info.si_code = TARGET_TRAP_BRKPT;
1758 queue_signal(env, info.si_signo, &info);
1762 case EXCP_INTERRUPT:
1763 /* just indicate that signals should be handled asap */
1766 cpu_abort(env, "Unknown exception 0x%d. Aborting\n", trapnr);
1769 process_pending_signals(env);
1776 #define MIPS_SYS(name, args) args,
1778 static const uint8_t mips_syscall_args[] = {
1779 MIPS_SYS(sys_syscall , 8) /* 4000 */
1780 MIPS_SYS(sys_exit , 1)
1781 MIPS_SYS(sys_fork , 0)
1782 MIPS_SYS(sys_read , 3)
1783 MIPS_SYS(sys_write , 3)
1784 MIPS_SYS(sys_open , 3) /* 4005 */
1785 MIPS_SYS(sys_close , 1)
1786 MIPS_SYS(sys_waitpid , 3)
1787 MIPS_SYS(sys_creat , 2)
1788 MIPS_SYS(sys_link , 2)
1789 MIPS_SYS(sys_unlink , 1) /* 4010 */
1790 MIPS_SYS(sys_execve , 0)
1791 MIPS_SYS(sys_chdir , 1)
1792 MIPS_SYS(sys_time , 1)
1793 MIPS_SYS(sys_mknod , 3)
1794 MIPS_SYS(sys_chmod , 2) /* 4015 */
1795 MIPS_SYS(sys_lchown , 3)
1796 MIPS_SYS(sys_ni_syscall , 0)
1797 MIPS_SYS(sys_ni_syscall , 0) /* was sys_stat */
1798 MIPS_SYS(sys_lseek , 3)
1799 MIPS_SYS(sys_getpid , 0) /* 4020 */
1800 MIPS_SYS(sys_mount , 5)
1801 MIPS_SYS(sys_oldumount , 1)
1802 MIPS_SYS(sys_setuid , 1)
1803 MIPS_SYS(sys_getuid , 0)
1804 MIPS_SYS(sys_stime , 1) /* 4025 */
1805 MIPS_SYS(sys_ptrace , 4)
1806 MIPS_SYS(sys_alarm , 1)
1807 MIPS_SYS(sys_ni_syscall , 0) /* was sys_fstat */
1808 MIPS_SYS(sys_pause , 0)
1809 MIPS_SYS(sys_utime , 2) /* 4030 */
1810 MIPS_SYS(sys_ni_syscall , 0)
1811 MIPS_SYS(sys_ni_syscall , 0)
1812 MIPS_SYS(sys_access , 2)
1813 MIPS_SYS(sys_nice , 1)
1814 MIPS_SYS(sys_ni_syscall , 0) /* 4035 */
1815 MIPS_SYS(sys_sync , 0)
1816 MIPS_SYS(sys_kill , 2)
1817 MIPS_SYS(sys_rename , 2)
1818 MIPS_SYS(sys_mkdir , 2)
1819 MIPS_SYS(sys_rmdir , 1) /* 4040 */
1820 MIPS_SYS(sys_dup , 1)
1821 MIPS_SYS(sys_pipe , 0)
1822 MIPS_SYS(sys_times , 1)
1823 MIPS_SYS(sys_ni_syscall , 0)
1824 MIPS_SYS(sys_brk , 1) /* 4045 */
1825 MIPS_SYS(sys_setgid , 1)
1826 MIPS_SYS(sys_getgid , 0)
1827 MIPS_SYS(sys_ni_syscall , 0) /* was signal(2) */
1828 MIPS_SYS(sys_geteuid , 0)
1829 MIPS_SYS(sys_getegid , 0) /* 4050 */
1830 MIPS_SYS(sys_acct , 0)
1831 MIPS_SYS(sys_umount , 2)
1832 MIPS_SYS(sys_ni_syscall , 0)
1833 MIPS_SYS(sys_ioctl , 3)
1834 MIPS_SYS(sys_fcntl , 3) /* 4055 */
1835 MIPS_SYS(sys_ni_syscall , 2)
1836 MIPS_SYS(sys_setpgid , 2)
1837 MIPS_SYS(sys_ni_syscall , 0)
1838 MIPS_SYS(sys_olduname , 1)
1839 MIPS_SYS(sys_umask , 1) /* 4060 */
1840 MIPS_SYS(sys_chroot , 1)
1841 MIPS_SYS(sys_ustat , 2)
1842 MIPS_SYS(sys_dup2 , 2)
1843 MIPS_SYS(sys_getppid , 0)
1844 MIPS_SYS(sys_getpgrp , 0) /* 4065 */
1845 MIPS_SYS(sys_setsid , 0)
1846 MIPS_SYS(sys_sigaction , 3)
1847 MIPS_SYS(sys_sgetmask , 0)
1848 MIPS_SYS(sys_ssetmask , 1)
1849 MIPS_SYS(sys_setreuid , 2) /* 4070 */
1850 MIPS_SYS(sys_setregid , 2)
1851 MIPS_SYS(sys_sigsuspend , 0)
1852 MIPS_SYS(sys_sigpending , 1)
1853 MIPS_SYS(sys_sethostname , 2)
1854 MIPS_SYS(sys_setrlimit , 2) /* 4075 */
1855 MIPS_SYS(sys_getrlimit , 2)
1856 MIPS_SYS(sys_getrusage , 2)
1857 MIPS_SYS(sys_gettimeofday, 2)
1858 MIPS_SYS(sys_settimeofday, 2)
1859 MIPS_SYS(sys_getgroups , 2) /* 4080 */
1860 MIPS_SYS(sys_setgroups , 2)
1861 MIPS_SYS(sys_ni_syscall , 0) /* old_select */
1862 MIPS_SYS(sys_symlink , 2)
1863 MIPS_SYS(sys_ni_syscall , 0) /* was sys_lstat */
1864 MIPS_SYS(sys_readlink , 3) /* 4085 */
1865 MIPS_SYS(sys_uselib , 1)
1866 MIPS_SYS(sys_swapon , 2)
1867 MIPS_SYS(sys_reboot , 3)
1868 MIPS_SYS(old_readdir , 3)
1869 MIPS_SYS(old_mmap , 6) /* 4090 */
1870 MIPS_SYS(sys_munmap , 2)
1871 MIPS_SYS(sys_truncate , 2)
1872 MIPS_SYS(sys_ftruncate , 2)
1873 MIPS_SYS(sys_fchmod , 2)
1874 MIPS_SYS(sys_fchown , 3) /* 4095 */
1875 MIPS_SYS(sys_getpriority , 2)
1876 MIPS_SYS(sys_setpriority , 3)
1877 MIPS_SYS(sys_ni_syscall , 0)
1878 MIPS_SYS(sys_statfs , 2)
1879 MIPS_SYS(sys_fstatfs , 2) /* 4100 */
1880 MIPS_SYS(sys_ni_syscall , 0) /* was ioperm(2) */
1881 MIPS_SYS(sys_socketcall , 2)
1882 MIPS_SYS(sys_syslog , 3)
1883 MIPS_SYS(sys_setitimer , 3)
1884 MIPS_SYS(sys_getitimer , 2) /* 4105 */
1885 MIPS_SYS(sys_newstat , 2)
1886 MIPS_SYS(sys_newlstat , 2)
1887 MIPS_SYS(sys_newfstat , 2)
1888 MIPS_SYS(sys_uname , 1)
1889 MIPS_SYS(sys_ni_syscall , 0) /* 4110 was iopl(2) */
1890 MIPS_SYS(sys_vhangup , 0)
1891 MIPS_SYS(sys_ni_syscall , 0) /* was sys_idle() */
1892 MIPS_SYS(sys_ni_syscall , 0) /* was sys_vm86 */
1893 MIPS_SYS(sys_wait4 , 4)
1894 MIPS_SYS(sys_swapoff , 1) /* 4115 */
1895 MIPS_SYS(sys_sysinfo , 1)
1896 MIPS_SYS(sys_ipc , 6)
1897 MIPS_SYS(sys_fsync , 1)
1898 MIPS_SYS(sys_sigreturn , 0)
1899 MIPS_SYS(sys_clone , 6) /* 4120 */
1900 MIPS_SYS(sys_setdomainname, 2)
1901 MIPS_SYS(sys_newuname , 1)
1902 MIPS_SYS(sys_ni_syscall , 0) /* sys_modify_ldt */
1903 MIPS_SYS(sys_adjtimex , 1)
1904 MIPS_SYS(sys_mprotect , 3) /* 4125 */
1905 MIPS_SYS(sys_sigprocmask , 3)
1906 MIPS_SYS(sys_ni_syscall , 0) /* was create_module */
1907 MIPS_SYS(sys_init_module , 5)
1908 MIPS_SYS(sys_delete_module, 1)
1909 MIPS_SYS(sys_ni_syscall , 0) /* 4130 was get_kernel_syms */
1910 MIPS_SYS(sys_quotactl , 0)
1911 MIPS_SYS(sys_getpgid , 1)
1912 MIPS_SYS(sys_fchdir , 1)
1913 MIPS_SYS(sys_bdflush , 2)
1914 MIPS_SYS(sys_sysfs , 3) /* 4135 */
1915 MIPS_SYS(sys_personality , 1)
1916 MIPS_SYS(sys_ni_syscall , 0) /* for afs_syscall */
1917 MIPS_SYS(sys_setfsuid , 1)
1918 MIPS_SYS(sys_setfsgid , 1)
1919 MIPS_SYS(sys_llseek , 5) /* 4140 */
1920 MIPS_SYS(sys_getdents , 3)
1921 MIPS_SYS(sys_select , 5)
1922 MIPS_SYS(sys_flock , 2)
1923 MIPS_SYS(sys_msync , 3)
1924 MIPS_SYS(sys_readv , 3) /* 4145 */
1925 MIPS_SYS(sys_writev , 3)
1926 MIPS_SYS(sys_cacheflush , 3)
1927 MIPS_SYS(sys_cachectl , 3)
1928 MIPS_SYS(sys_sysmips , 4)
1929 MIPS_SYS(sys_ni_syscall , 0) /* 4150 */
1930 MIPS_SYS(sys_getsid , 1)
1931 MIPS_SYS(sys_fdatasync , 0)
1932 MIPS_SYS(sys_sysctl , 1)
1933 MIPS_SYS(sys_mlock , 2)
1934 MIPS_SYS(sys_munlock , 2) /* 4155 */
1935 MIPS_SYS(sys_mlockall , 1)
1936 MIPS_SYS(sys_munlockall , 0)
1937 MIPS_SYS(sys_sched_setparam, 2)
1938 MIPS_SYS(sys_sched_getparam, 2)
1939 MIPS_SYS(sys_sched_setscheduler, 3) /* 4160 */
1940 MIPS_SYS(sys_sched_getscheduler, 1)
1941 MIPS_SYS(sys_sched_yield , 0)
1942 MIPS_SYS(sys_sched_get_priority_max, 1)
1943 MIPS_SYS(sys_sched_get_priority_min, 1)
1944 MIPS_SYS(sys_sched_rr_get_interval, 2) /* 4165 */
1945 MIPS_SYS(sys_nanosleep, 2)
1946 MIPS_SYS(sys_mremap , 4)
1947 MIPS_SYS(sys_accept , 3)
1948 MIPS_SYS(sys_bind , 3)
1949 MIPS_SYS(sys_connect , 3) /* 4170 */
1950 MIPS_SYS(sys_getpeername , 3)
1951 MIPS_SYS(sys_getsockname , 3)
1952 MIPS_SYS(sys_getsockopt , 5)
1953 MIPS_SYS(sys_listen , 2)
1954 MIPS_SYS(sys_recv , 4) /* 4175 */
1955 MIPS_SYS(sys_recvfrom , 6)
1956 MIPS_SYS(sys_recvmsg , 3)
1957 MIPS_SYS(sys_send , 4)
1958 MIPS_SYS(sys_sendmsg , 3)
1959 MIPS_SYS(sys_sendto , 6) /* 4180 */
1960 MIPS_SYS(sys_setsockopt , 5)
1961 MIPS_SYS(sys_shutdown , 2)
1962 MIPS_SYS(sys_socket , 3)
1963 MIPS_SYS(sys_socketpair , 4)
1964 MIPS_SYS(sys_setresuid , 3) /* 4185 */
1965 MIPS_SYS(sys_getresuid , 3)
1966 MIPS_SYS(sys_ni_syscall , 0) /* was sys_query_module */
1967 MIPS_SYS(sys_poll , 3)
1968 MIPS_SYS(sys_nfsservctl , 3)
1969 MIPS_SYS(sys_setresgid , 3) /* 4190 */
1970 MIPS_SYS(sys_getresgid , 3)
1971 MIPS_SYS(sys_prctl , 5)
1972 MIPS_SYS(sys_rt_sigreturn, 0)
1973 MIPS_SYS(sys_rt_sigaction, 4)
1974 MIPS_SYS(sys_rt_sigprocmask, 4) /* 4195 */
1975 MIPS_SYS(sys_rt_sigpending, 2)
1976 MIPS_SYS(sys_rt_sigtimedwait, 4)
1977 MIPS_SYS(sys_rt_sigqueueinfo, 3)
1978 MIPS_SYS(sys_rt_sigsuspend, 0)
1979 MIPS_SYS(sys_pread64 , 6) /* 4200 */
1980 MIPS_SYS(sys_pwrite64 , 6)
1981 MIPS_SYS(sys_chown , 3)
1982 MIPS_SYS(sys_getcwd , 2)
1983 MIPS_SYS(sys_capget , 2)
1984 MIPS_SYS(sys_capset , 2) /* 4205 */
1985 MIPS_SYS(sys_sigaltstack , 2)
1986 MIPS_SYS(sys_sendfile , 4)
1987 MIPS_SYS(sys_ni_syscall , 0)
1988 MIPS_SYS(sys_ni_syscall , 0)
1989 MIPS_SYS(sys_mmap2 , 6) /* 4210 */
1990 MIPS_SYS(sys_truncate64 , 4)
1991 MIPS_SYS(sys_ftruncate64 , 4)
1992 MIPS_SYS(sys_stat64 , 2)
1993 MIPS_SYS(sys_lstat64 , 2)
1994 MIPS_SYS(sys_fstat64 , 2) /* 4215 */
1995 MIPS_SYS(sys_pivot_root , 2)
1996 MIPS_SYS(sys_mincore , 3)
1997 MIPS_SYS(sys_madvise , 3)
1998 MIPS_SYS(sys_getdents64 , 3)
1999 MIPS_SYS(sys_fcntl64 , 3) /* 4220 */
2000 MIPS_SYS(sys_ni_syscall , 0)
2001 MIPS_SYS(sys_gettid , 0)
2002 MIPS_SYS(sys_readahead , 5)
2003 MIPS_SYS(sys_setxattr , 5)
2004 MIPS_SYS(sys_lsetxattr , 5) /* 4225 */
2005 MIPS_SYS(sys_fsetxattr , 5)
2006 MIPS_SYS(sys_getxattr , 4)
2007 MIPS_SYS(sys_lgetxattr , 4)
2008 MIPS_SYS(sys_fgetxattr , 4)
2009 MIPS_SYS(sys_listxattr , 3) /* 4230 */
2010 MIPS_SYS(sys_llistxattr , 3)
2011 MIPS_SYS(sys_flistxattr , 3)
2012 MIPS_SYS(sys_removexattr , 2)
2013 MIPS_SYS(sys_lremovexattr, 2)
2014 MIPS_SYS(sys_fremovexattr, 2) /* 4235 */
2015 MIPS_SYS(sys_tkill , 2)
2016 MIPS_SYS(sys_sendfile64 , 5)
2017 MIPS_SYS(sys_futex , 2)
2018 MIPS_SYS(sys_sched_setaffinity, 3)
2019 MIPS_SYS(sys_sched_getaffinity, 3) /* 4240 */
2020 MIPS_SYS(sys_io_setup , 2)
2021 MIPS_SYS(sys_io_destroy , 1)
2022 MIPS_SYS(sys_io_getevents, 5)
2023 MIPS_SYS(sys_io_submit , 3)
2024 MIPS_SYS(sys_io_cancel , 3) /* 4245 */
2025 MIPS_SYS(sys_exit_group , 1)
2026 MIPS_SYS(sys_lookup_dcookie, 3)
2027 MIPS_SYS(sys_epoll_create, 1)
2028 MIPS_SYS(sys_epoll_ctl , 4)
2029 MIPS_SYS(sys_epoll_wait , 3) /* 4250 */
2030 MIPS_SYS(sys_remap_file_pages, 5)
2031 MIPS_SYS(sys_set_tid_address, 1)
2032 MIPS_SYS(sys_restart_syscall, 0)
2033 MIPS_SYS(sys_fadvise64_64, 7)
2034 MIPS_SYS(sys_statfs64 , 3) /* 4255 */
2035 MIPS_SYS(sys_fstatfs64 , 2)
2036 MIPS_SYS(sys_timer_create, 3)
2037 MIPS_SYS(sys_timer_settime, 4)
2038 MIPS_SYS(sys_timer_gettime, 2)
2039 MIPS_SYS(sys_timer_getoverrun, 1) /* 4260 */
2040 MIPS_SYS(sys_timer_delete, 1)
2041 MIPS_SYS(sys_clock_settime, 2)
2042 MIPS_SYS(sys_clock_gettime, 2)
2043 MIPS_SYS(sys_clock_getres, 2)
2044 MIPS_SYS(sys_clock_nanosleep, 4) /* 4265 */
2045 MIPS_SYS(sys_tgkill , 3)
2046 MIPS_SYS(sys_utimes , 2)
2047 MIPS_SYS(sys_mbind , 4)
2048 MIPS_SYS(sys_ni_syscall , 0) /* sys_get_mempolicy */
2049 MIPS_SYS(sys_ni_syscall , 0) /* 4270 sys_set_mempolicy */
2050 MIPS_SYS(sys_mq_open , 4)
2051 MIPS_SYS(sys_mq_unlink , 1)
2052 MIPS_SYS(sys_mq_timedsend, 5)
2053 MIPS_SYS(sys_mq_timedreceive, 5)
2054 MIPS_SYS(sys_mq_notify , 2) /* 4275 */
2055 MIPS_SYS(sys_mq_getsetattr, 3)
2056 MIPS_SYS(sys_ni_syscall , 0) /* sys_vserver */
2057 MIPS_SYS(sys_waitid , 4)
2058 MIPS_SYS(sys_ni_syscall , 0) /* available, was setaltroot */
2059 MIPS_SYS(sys_add_key , 5)
2060 MIPS_SYS(sys_request_key, 4)
2061 MIPS_SYS(sys_keyctl , 5)
2062 MIPS_SYS(sys_set_thread_area, 1)
2063 MIPS_SYS(sys_inotify_init, 0)
2064 MIPS_SYS(sys_inotify_add_watch, 3) /* 4285 */
2065 MIPS_SYS(sys_inotify_rm_watch, 2)
2066 MIPS_SYS(sys_migrate_pages, 4)
2067 MIPS_SYS(sys_openat, 4)
2068 MIPS_SYS(sys_mkdirat, 3)
2069 MIPS_SYS(sys_mknodat, 4) /* 4290 */
2070 MIPS_SYS(sys_fchownat, 5)
2071 MIPS_SYS(sys_futimesat, 3)
2072 MIPS_SYS(sys_fstatat64, 4)
2073 MIPS_SYS(sys_unlinkat, 3)
2074 MIPS_SYS(sys_renameat, 4) /* 4295 */
2075 MIPS_SYS(sys_linkat, 5)
2076 MIPS_SYS(sys_symlinkat, 3)
2077 MIPS_SYS(sys_readlinkat, 4)
2078 MIPS_SYS(sys_fchmodat, 3)
2079 MIPS_SYS(sys_faccessat, 3) /* 4300 */
2080 MIPS_SYS(sys_pselect6, 6)
2081 MIPS_SYS(sys_ppoll, 5)
2082 MIPS_SYS(sys_unshare, 1)
2083 MIPS_SYS(sys_splice, 4)
2084 MIPS_SYS(sys_sync_file_range, 7) /* 4305 */
2085 MIPS_SYS(sys_tee, 4)
2086 MIPS_SYS(sys_vmsplice, 4)
2087 MIPS_SYS(sys_move_pages, 6)
2088 MIPS_SYS(sys_set_robust_list, 2)
2089 MIPS_SYS(sys_get_robust_list, 3) /* 4310 */
2090 MIPS_SYS(sys_kexec_load, 4)
2091 MIPS_SYS(sys_getcpu, 3)
2092 MIPS_SYS(sys_epoll_pwait, 6)
2093 MIPS_SYS(sys_ioprio_set, 3)
2094 MIPS_SYS(sys_ioprio_get, 2)
2095 MIPS_SYS(sys_utimensat, 4)
2096 MIPS_SYS(sys_signalfd, 3)
2097 MIPS_SYS(sys_ni_syscall, 0) /* was timerfd */
2098 MIPS_SYS(sys_eventfd, 1)
2099 MIPS_SYS(sys_fallocate, 6) /* 4320 */
2100 MIPS_SYS(sys_timerfd_create, 2)
2101 MIPS_SYS(sys_timerfd_gettime, 2)
2102 MIPS_SYS(sys_timerfd_settime, 4)
2103 MIPS_SYS(sys_signalfd4, 4)
2104 MIPS_SYS(sys_eventfd2, 2) /* 4325 */
2105 MIPS_SYS(sys_epoll_create1, 1)
2106 MIPS_SYS(sys_dup3, 3)
2107 MIPS_SYS(sys_pipe2, 2)
2108 MIPS_SYS(sys_inotify_init1, 1)
2109 MIPS_SYS(sys_preadv, 6) /* 4330 */
2110 MIPS_SYS(sys_pwritev, 6)
2111 MIPS_SYS(sys_rt_tgsigqueueinfo, 4)
2112 MIPS_SYS(sys_perf_event_open, 5)
2113 MIPS_SYS(sys_accept4, 4)
2114 MIPS_SYS(sys_recvmmsg, 5) /* 4335 */
2115 MIPS_SYS(sys_fanotify_init, 2)
2116 MIPS_SYS(sys_fanotify_mark, 6)
2117 MIPS_SYS(sys_prlimit64, 4)
2118 MIPS_SYS(sys_name_to_handle_at, 5)
2119 MIPS_SYS(sys_open_by_handle_at, 3) /* 4340 */
2120 MIPS_SYS(sys_clock_adjtime, 2)
2121 MIPS_SYS(sys_syncfs, 1)
2126 static int do_store_exclusive(CPUMIPSState *env)
2129 target_ulong page_addr;
2137 page_addr = addr & TARGET_PAGE_MASK;
2140 flags = page_get_flags(page_addr);
2141 if ((flags & PAGE_READ) == 0) {
2144 reg = env->llreg & 0x1f;
2145 d = (env->llreg & 0x20) != 0;
2147 segv = get_user_s64(val, addr);
2149 segv = get_user_s32(val, addr);
2152 if (val != env->llval) {
2153 env->active_tc.gpr[reg] = 0;
2156 segv = put_user_u64(env->llnewval, addr);
2158 segv = put_user_u32(env->llnewval, addr);
2161 env->active_tc.gpr[reg] = 1;
2168 env->active_tc.PC += 4;
2175 void cpu_loop(CPUMIPSState *env)
2177 target_siginfo_t info;
2179 unsigned int syscall_num;
2182 cpu_exec_start(env);
2183 trapnr = cpu_mips_exec(env);
2187 syscall_num = env->active_tc.gpr[2] - 4000;
2188 env->active_tc.PC += 4;
2189 if (syscall_num >= sizeof(mips_syscall_args)) {
2190 ret = -TARGET_ENOSYS;
2194 abi_ulong arg5 = 0, arg6 = 0, arg7 = 0, arg8 = 0;
2196 nb_args = mips_syscall_args[syscall_num];
2197 sp_reg = env->active_tc.gpr[29];
2199 /* these arguments are taken from the stack */
2201 if ((ret = get_user_ual(arg8, sp_reg + 28)) != 0) {
2205 if ((ret = get_user_ual(arg7, sp_reg + 24)) != 0) {
2209 if ((ret = get_user_ual(arg6, sp_reg + 20)) != 0) {
2213 if ((ret = get_user_ual(arg5, sp_reg + 16)) != 0) {
2219 ret = do_syscall(env, env->active_tc.gpr[2],
2220 env->active_tc.gpr[4],
2221 env->active_tc.gpr[5],
2222 env->active_tc.gpr[6],
2223 env->active_tc.gpr[7],
2224 arg5, arg6, arg7, arg8);
2227 if (ret == -TARGET_QEMU_ESIGRETURN) {
2228 /* Returning from a successful sigreturn syscall.
2229 Avoid clobbering register state. */
2232 if ((unsigned int)ret >= (unsigned int)(-1133)) {
2233 env->active_tc.gpr[7] = 1; /* error flag */
2236 env->active_tc.gpr[7] = 0; /* error flag */
2238 env->active_tc.gpr[2] = ret;
2244 info.si_signo = TARGET_SIGSEGV;
2246 /* XXX: check env->error_code */
2247 info.si_code = TARGET_SEGV_MAPERR;
2248 info._sifields._sigfault._addr = env->CP0_BadVAddr;
2249 queue_signal(env, info.si_signo, &info);
2253 info.si_signo = TARGET_SIGILL;
2256 queue_signal(env, info.si_signo, &info);
2258 case EXCP_INTERRUPT:
2259 /* just indicate that signals should be handled asap */
2265 sig = gdb_handlesig (env, TARGET_SIGTRAP);
2268 info.si_signo = sig;
2270 info.si_code = TARGET_TRAP_BRKPT;
2271 queue_signal(env, info.si_signo, &info);
2276 if (do_store_exclusive(env)) {
2277 info.si_signo = TARGET_SIGSEGV;
2279 info.si_code = TARGET_SEGV_MAPERR;
2280 info._sifields._sigfault._addr = env->active_tc.PC;
2281 queue_signal(env, info.si_signo, &info);
2286 fprintf(stderr, "qemu: unhandled CPU exception 0x%x - aborting\n",
2288 cpu_dump_state(env, stderr, fprintf, 0);
2291 process_pending_signals(env);
2296 #ifdef TARGET_OPENRISC
2298 void cpu_loop(CPUOpenRISCState *env)
2303 trapnr = cpu_exec(env);
2308 qemu_log("\nReset request, exit, pc is %#x\n", env->pc);
2312 qemu_log("\nBus error, exit, pc is %#x\n", env->pc);
2317 cpu_dump_state(env, stderr, fprintf, 0);
2318 gdbsig = TARGET_SIGSEGV;
2321 qemu_log("\nTick time interrupt pc is %#x\n", env->pc);
2324 qemu_log("\nAlignment pc is %#x\n", env->pc);
2328 qemu_log("\nIllegal instructionpc is %#x\n", env->pc);
2332 qemu_log("\nExternal interruptpc is %#x\n", env->pc);
2336 qemu_log("\nTLB miss\n");
2339 qemu_log("\nRange\n");
2343 env->pc += 4; /* 0xc00; */
2344 env->gpr[11] = do_syscall(env,
2345 env->gpr[11], /* return value */
2346 env->gpr[3], /* r3 - r7 are params */
2354 qemu_log("\nFloating point error\n");
2357 qemu_log("\nTrap\n");
2364 qemu_log("\nqemu: unhandled CPU exception %#x - aborting\n",
2366 cpu_dump_state(env, stderr, fprintf, 0);
2367 gdbsig = TARGET_SIGILL;
2371 gdb_handlesig(env, gdbsig);
2372 if (gdbsig != TARGET_SIGTRAP) {
2377 process_pending_signals(env);
2381 #endif /* TARGET_OPENRISC */
2384 void cpu_loop(CPUSH4State *env)
2387 target_siginfo_t info;
2390 trapnr = cpu_sh4_exec (env);
2395 ret = do_syscall(env,
2404 env->gregs[0] = ret;
2406 case EXCP_INTERRUPT:
2407 /* just indicate that signals should be handled asap */
2413 sig = gdb_handlesig (env, TARGET_SIGTRAP);
2416 info.si_signo = sig;
2418 info.si_code = TARGET_TRAP_BRKPT;
2419 queue_signal(env, info.si_signo, &info);
2425 info.si_signo = SIGSEGV;
2427 info.si_code = TARGET_SEGV_MAPERR;
2428 info._sifields._sigfault._addr = env->tea;
2429 queue_signal(env, info.si_signo, &info);
2433 printf ("Unhandled trap: 0x%x\n", trapnr);
2434 cpu_dump_state(env, stderr, fprintf, 0);
2437 process_pending_signals (env);
2443 void cpu_loop(CPUCRISState *env)
2446 target_siginfo_t info;
2449 trapnr = cpu_cris_exec (env);
2453 info.si_signo = SIGSEGV;
2455 /* XXX: check env->error_code */
2456 info.si_code = TARGET_SEGV_MAPERR;
2457 info._sifields._sigfault._addr = env->pregs[PR_EDA];
2458 queue_signal(env, info.si_signo, &info);
2461 case EXCP_INTERRUPT:
2462 /* just indicate that signals should be handled asap */
2465 ret = do_syscall(env,
2474 env->regs[10] = ret;
2480 sig = gdb_handlesig (env, TARGET_SIGTRAP);
2483 info.si_signo = sig;
2485 info.si_code = TARGET_TRAP_BRKPT;
2486 queue_signal(env, info.si_signo, &info);
2491 printf ("Unhandled trap: 0x%x\n", trapnr);
2492 cpu_dump_state(env, stderr, fprintf, 0);
2495 process_pending_signals (env);
2500 #ifdef TARGET_MICROBLAZE
2501 void cpu_loop(CPUMBState *env)
2504 target_siginfo_t info;
2507 trapnr = cpu_mb_exec (env);
2511 info.si_signo = SIGSEGV;
2513 /* XXX: check env->error_code */
2514 info.si_code = TARGET_SEGV_MAPERR;
2515 info._sifields._sigfault._addr = 0;
2516 queue_signal(env, info.si_signo, &info);
2519 case EXCP_INTERRUPT:
2520 /* just indicate that signals should be handled asap */
2523 /* Return address is 4 bytes after the call. */
2525 ret = do_syscall(env,
2535 env->sregs[SR_PC] = env->regs[14];
2538 env->regs[17] = env->sregs[SR_PC] + 4;
2539 if (env->iflags & D_FLAG) {
2540 env->sregs[SR_ESR] |= 1 << 12;
2541 env->sregs[SR_PC] -= 4;
2542 /* FIXME: if branch was immed, replay the imm as well. */
2545 env->iflags &= ~(IMM_FLAG | D_FLAG);
2547 switch (env->sregs[SR_ESR] & 31) {
2548 case ESR_EC_DIVZERO:
2549 info.si_signo = SIGFPE;
2551 info.si_code = TARGET_FPE_FLTDIV;
2552 info._sifields._sigfault._addr = 0;
2553 queue_signal(env, info.si_signo, &info);
2556 info.si_signo = SIGFPE;
2558 if (env->sregs[SR_FSR] & FSR_IO) {
2559 info.si_code = TARGET_FPE_FLTINV;
2561 if (env->sregs[SR_FSR] & FSR_DZ) {
2562 info.si_code = TARGET_FPE_FLTDIV;
2564 info._sifields._sigfault._addr = 0;
2565 queue_signal(env, info.si_signo, &info);
2568 printf ("Unhandled hw-exception: 0x%x\n",
2569 env->sregs[SR_ESR] & ESR_EC_MASK);
2570 cpu_dump_state(env, stderr, fprintf, 0);
2579 sig = gdb_handlesig (env, TARGET_SIGTRAP);
2582 info.si_signo = sig;
2584 info.si_code = TARGET_TRAP_BRKPT;
2585 queue_signal(env, info.si_signo, &info);
2590 printf ("Unhandled trap: 0x%x\n", trapnr);
2591 cpu_dump_state(env, stderr, fprintf, 0);
2594 process_pending_signals (env);
2601 void cpu_loop(CPUM68KState *env)
2605 target_siginfo_t info;
2606 TaskState *ts = env->opaque;
2609 trapnr = cpu_m68k_exec(env);
2613 if (ts->sim_syscalls) {
2615 nr = lduw(env->pc + 2);
2617 do_m68k_simcall(env, nr);
2623 case EXCP_HALT_INSN:
2624 /* Semihosing syscall. */
2626 do_m68k_semihosting(env, env->dregs[0]);
2630 case EXCP_UNSUPPORTED:
2632 info.si_signo = SIGILL;
2634 info.si_code = TARGET_ILL_ILLOPN;
2635 info._sifields._sigfault._addr = env->pc;
2636 queue_signal(env, info.si_signo, &info);
2640 ts->sim_syscalls = 0;
2643 env->dregs[0] = do_syscall(env,
2654 case EXCP_INTERRUPT:
2655 /* just indicate that signals should be handled asap */
2659 info.si_signo = SIGSEGV;
2661 /* XXX: check env->error_code */
2662 info.si_code = TARGET_SEGV_MAPERR;
2663 info._sifields._sigfault._addr = env->mmu.ar;
2664 queue_signal(env, info.si_signo, &info);
2671 sig = gdb_handlesig (env, TARGET_SIGTRAP);
2674 info.si_signo = sig;
2676 info.si_code = TARGET_TRAP_BRKPT;
2677 queue_signal(env, info.si_signo, &info);
2682 fprintf(stderr, "qemu: unhandled CPU exception 0x%x - aborting\n",
2684 cpu_dump_state(env, stderr, fprintf, 0);
2687 process_pending_signals(env);
2690 #endif /* TARGET_M68K */
2693 static void do_store_exclusive(CPUAlphaState *env, int reg, int quad)
2695 target_ulong addr, val, tmp;
2696 target_siginfo_t info;
2699 addr = env->lock_addr;
2700 tmp = env->lock_st_addr;
2701 env->lock_addr = -1;
2702 env->lock_st_addr = 0;
2708 if (quad ? get_user_s64(val, addr) : get_user_s32(val, addr)) {
2712 if (val == env->lock_value) {
2714 if (quad ? put_user_u64(tmp, addr) : put_user_u32(tmp, addr)) {
2731 info.si_signo = TARGET_SIGSEGV;
2733 info.si_code = TARGET_SEGV_MAPERR;
2734 info._sifields._sigfault._addr = addr;
2735 queue_signal(env, TARGET_SIGSEGV, &info);
2738 void cpu_loop(CPUAlphaState *env)
2741 target_siginfo_t info;
2745 trapnr = cpu_alpha_exec (env);
2747 /* All of the traps imply a transition through PALcode, which
2748 implies an REI instruction has been executed. Which means
2749 that the intr_flag should be cleared. */
2754 fprintf(stderr, "Reset requested. Exit\n");
2758 fprintf(stderr, "Machine check exception. Exit\n");
2761 case EXCP_SMP_INTERRUPT:
2762 case EXCP_CLK_INTERRUPT:
2763 case EXCP_DEV_INTERRUPT:
2764 fprintf(stderr, "External interrupt. Exit\n");
2768 env->lock_addr = -1;
2769 info.si_signo = TARGET_SIGSEGV;
2771 info.si_code = (page_get_flags(env->trap_arg0) & PAGE_VALID
2772 ? TARGET_SEGV_ACCERR : TARGET_SEGV_MAPERR);
2773 info._sifields._sigfault._addr = env->trap_arg0;
2774 queue_signal(env, info.si_signo, &info);
2777 env->lock_addr = -1;
2778 info.si_signo = TARGET_SIGBUS;
2780 info.si_code = TARGET_BUS_ADRALN;
2781 info._sifields._sigfault._addr = env->trap_arg0;
2782 queue_signal(env, info.si_signo, &info);
2786 env->lock_addr = -1;
2787 info.si_signo = TARGET_SIGILL;
2789 info.si_code = TARGET_ILL_ILLOPC;
2790 info._sifields._sigfault._addr = env->pc;
2791 queue_signal(env, info.si_signo, &info);
2794 env->lock_addr = -1;
2795 info.si_signo = TARGET_SIGFPE;
2797 info.si_code = TARGET_FPE_FLTINV;
2798 info._sifields._sigfault._addr = env->pc;
2799 queue_signal(env, info.si_signo, &info);
2802 /* No-op. Linux simply re-enables the FPU. */
2805 env->lock_addr = -1;
2806 switch (env->error_code) {
2809 info.si_signo = TARGET_SIGTRAP;
2811 info.si_code = TARGET_TRAP_BRKPT;
2812 info._sifields._sigfault._addr = env->pc;
2813 queue_signal(env, info.si_signo, &info);
2817 info.si_signo = TARGET_SIGTRAP;
2820 info._sifields._sigfault._addr = env->pc;
2821 queue_signal(env, info.si_signo, &info);
2825 trapnr = env->ir[IR_V0];
2826 sysret = do_syscall(env, trapnr,
2827 env->ir[IR_A0], env->ir[IR_A1],
2828 env->ir[IR_A2], env->ir[IR_A3],
2829 env->ir[IR_A4], env->ir[IR_A5],
2831 if (trapnr == TARGET_NR_sigreturn
2832 || trapnr == TARGET_NR_rt_sigreturn) {
2835 /* Syscall writes 0 to V0 to bypass error check, similar
2836 to how this is handled internal to Linux kernel.
2837 (Ab)use trapnr temporarily as boolean indicating error. */
2838 trapnr = (env->ir[IR_V0] != 0 && sysret < 0);
2839 env->ir[IR_V0] = (trapnr ? -sysret : sysret);
2840 env->ir[IR_A3] = trapnr;
2844 /* ??? We can probably elide the code using page_unprotect
2845 that is checking for self-modifying code. Instead we
2846 could simply call tb_flush here. Until we work out the
2847 changes required to turn off the extra write protection,
2848 this can be a no-op. */
2852 /* Handled in the translator for usermode. */
2856 /* Handled in the translator for usermode. */
2860 info.si_signo = TARGET_SIGFPE;
2861 switch (env->ir[IR_A0]) {
2862 case TARGET_GEN_INTOVF:
2863 info.si_code = TARGET_FPE_INTOVF;
2865 case TARGET_GEN_INTDIV:
2866 info.si_code = TARGET_FPE_INTDIV;
2868 case TARGET_GEN_FLTOVF:
2869 info.si_code = TARGET_FPE_FLTOVF;
2871 case TARGET_GEN_FLTUND:
2872 info.si_code = TARGET_FPE_FLTUND;
2874 case TARGET_GEN_FLTINV:
2875 info.si_code = TARGET_FPE_FLTINV;
2877 case TARGET_GEN_FLTINE:
2878 info.si_code = TARGET_FPE_FLTRES;
2880 case TARGET_GEN_ROPRAND:
2884 info.si_signo = TARGET_SIGTRAP;
2889 info._sifields._sigfault._addr = env->pc;
2890 queue_signal(env, info.si_signo, &info);
2897 info.si_signo = gdb_handlesig (env, TARGET_SIGTRAP);
2898 if (info.si_signo) {
2899 env->lock_addr = -1;
2901 info.si_code = TARGET_TRAP_BRKPT;
2902 queue_signal(env, info.si_signo, &info);
2907 do_store_exclusive(env, env->error_code, trapnr - EXCP_STL_C);
2909 case EXCP_INTERRUPT:
2910 /* Just indicate that signals should be handled asap. */
2913 printf ("Unhandled trap: 0x%x\n", trapnr);
2914 cpu_dump_state(env, stderr, fprintf, 0);
2917 process_pending_signals (env);
2920 #endif /* TARGET_ALPHA */
2923 void cpu_loop(CPUS390XState *env)
2926 target_siginfo_t info;
2929 trapnr = cpu_s390x_exec (env);
2932 case EXCP_INTERRUPT:
2933 /* just indicate that signals should be handled asap */
2939 sig = gdb_handlesig (env, TARGET_SIGTRAP);
2941 info.si_signo = sig;
2943 info.si_code = TARGET_TRAP_BRKPT;
2944 queue_signal(env, info.si_signo, &info);
2950 int n = env->int_svc_code;
2952 /* syscalls > 255 */
2955 env->psw.addr += env->int_svc_ilc;
2956 env->regs[2] = do_syscall(env, n,
2968 info.si_signo = SIGSEGV;
2970 /* XXX: check env->error_code */
2971 info.si_code = TARGET_SEGV_MAPERR;
2972 info._sifields._sigfault._addr = env->__excp_addr;
2973 queue_signal(env, info.si_signo, &info);
2978 fprintf(stderr,"specification exception insn 0x%08x%04x\n", ldl(env->psw.addr), lduw(env->psw.addr + 4));
2979 info.si_signo = SIGILL;
2981 info.si_code = TARGET_ILL_ILLOPC;
2982 info._sifields._sigfault._addr = env->__excp_addr;
2983 queue_signal(env, info.si_signo, &info);
2987 printf ("Unhandled trap: 0x%x\n", trapnr);
2988 cpu_dump_state(env, stderr, fprintf, 0);
2991 process_pending_signals (env);
2995 #endif /* TARGET_S390X */
2997 THREAD CPUArchState *thread_env;
2999 void task_settid(TaskState *ts)
3001 if (ts->ts_tid == 0) {
3002 #ifdef CONFIG_USE_NPTL
3003 ts->ts_tid = (pid_t)syscall(SYS_gettid);
3005 /* when no threads are used, tid becomes pid */
3006 ts->ts_tid = getpid();
3011 void stop_all_tasks(void)
3014 * We trust that when using NPTL, start_exclusive()
3015 * handles thread stopping correctly.
3020 /* Assumes contents are already zeroed. */
3021 void init_task_state(TaskState *ts)
3026 ts->first_free = ts->sigqueue_table;
3027 for (i = 0; i < MAX_SIGQUEUE_SIZE - 1; i++) {
3028 ts->sigqueue_table[i].next = &ts->sigqueue_table[i + 1];
3030 ts->sigqueue_table[i].next = NULL;
3033 static void handle_arg_help(const char *arg)
3038 static void handle_arg_log(const char *arg)
3041 const CPULogItem *item;
3043 mask = cpu_str_to_log_mask(arg);
3045 printf("Log items (comma separated):\n");
3046 for (item = cpu_log_items; item->mask != 0; item++) {
3047 printf("%-10s %s\n", item->name, item->help);
3054 static void handle_arg_log_filename(const char *arg)
3056 cpu_set_log_filename(arg);
3059 static void handle_arg_set_env(const char *arg)
3061 char *r, *p, *token;
3062 r = p = strdup(arg);
3063 while ((token = strsep(&p, ",")) != NULL) {
3064 if (envlist_setenv(envlist, token) != 0) {
3071 static void handle_arg_unset_env(const char *arg)
3073 char *r, *p, *token;
3074 r = p = strdup(arg);
3075 while ((token = strsep(&p, ",")) != NULL) {
3076 if (envlist_unsetenv(envlist, token) != 0) {
3083 static void handle_arg_argv0(const char *arg)
3085 argv0 = strdup(arg);
3088 static void handle_arg_stack_size(const char *arg)
3091 guest_stack_size = strtoul(arg, &p, 0);
3092 if (guest_stack_size == 0) {
3097 guest_stack_size *= 1024 * 1024;
3098 } else if (*p == 'k' || *p == 'K') {
3099 guest_stack_size *= 1024;
3103 static void handle_arg_ld_prefix(const char *arg)
3105 interp_prefix = strdup(arg);
3108 static void handle_arg_pagesize(const char *arg)
3110 qemu_host_page_size = atoi(arg);
3111 if (qemu_host_page_size == 0 ||
3112 (qemu_host_page_size & (qemu_host_page_size - 1)) != 0) {
3113 fprintf(stderr, "page size must be a power of two\n");
3118 static void handle_arg_gdb(const char *arg)
3120 gdbstub_port = atoi(arg);
3123 static void handle_arg_uname(const char *arg)
3125 qemu_uname_release = strdup(arg);
3128 static void handle_arg_cpu(const char *arg)
3130 cpu_model = strdup(arg);
3131 if (cpu_model == NULL || is_help_option(cpu_model)) {
3132 /* XXX: implement xxx_cpu_list for targets that still miss it */
3133 #if defined(cpu_list)
3134 cpu_list(stdout, &fprintf);
3140 #if defined(CONFIG_USE_GUEST_BASE)
3141 static void handle_arg_guest_base(const char *arg)
3143 guest_base = strtol(arg, NULL, 0);
3144 have_guest_base = 1;
3147 static void handle_arg_reserved_va(const char *arg)
3151 reserved_va = strtoul(arg, &p, 0);
3165 unsigned long unshifted = reserved_va;
3167 reserved_va <<= shift;
3168 if (((reserved_va >> shift) != unshifted)
3169 #if HOST_LONG_BITS > TARGET_VIRT_ADDR_SPACE_BITS
3170 || (reserved_va > (1ul << TARGET_VIRT_ADDR_SPACE_BITS))
3173 fprintf(stderr, "Reserved virtual address too big\n");
3178 fprintf(stderr, "Unrecognised -R size suffix '%s'\n", p);
3184 static void handle_arg_singlestep(const char *arg)
3189 static void handle_arg_strace(const char *arg)
3194 static void handle_arg_version(const char *arg)
3196 printf("qemu-" TARGET_ARCH " version " QEMU_VERSION QEMU_PKGVERSION
3197 ", Copyright (c) 2003-2008 Fabrice Bellard\n");
3201 struct qemu_argument {
3205 void (*handle_opt)(const char *arg);
3206 const char *example;
3210 static const struct qemu_argument arg_table[] = {
3211 {"h", "", false, handle_arg_help,
3212 "", "print this help"},
3213 {"g", "QEMU_GDB", true, handle_arg_gdb,
3214 "port", "wait gdb connection to 'port'"},
3215 {"L", "QEMU_LD_PREFIX", true, handle_arg_ld_prefix,
3216 "path", "set the elf interpreter prefix to 'path'"},
3217 {"s", "QEMU_STACK_SIZE", true, handle_arg_stack_size,
3218 "size", "set the stack size to 'size' bytes"},
3219 {"cpu", "QEMU_CPU", true, handle_arg_cpu,
3220 "model", "select CPU (-cpu help for list)"},
3221 {"E", "QEMU_SET_ENV", true, handle_arg_set_env,
3222 "var=value", "sets targets environment variable (see below)"},
3223 {"U", "QEMU_UNSET_ENV", true, handle_arg_unset_env,
3224 "var", "unsets targets environment variable (see below)"},
3225 {"0", "QEMU_ARGV0", true, handle_arg_argv0,
3226 "argv0", "forces target process argv[0] to be 'argv0'"},
3227 {"r", "QEMU_UNAME", true, handle_arg_uname,
3228 "uname", "set qemu uname release string to 'uname'"},
3229 #if defined(CONFIG_USE_GUEST_BASE)
3230 {"B", "QEMU_GUEST_BASE", true, handle_arg_guest_base,
3231 "address", "set guest_base address to 'address'"},
3232 {"R", "QEMU_RESERVED_VA", true, handle_arg_reserved_va,
3233 "size", "reserve 'size' bytes for guest virtual address space"},
3235 {"d", "QEMU_LOG", true, handle_arg_log,
3236 "options", "activate log"},
3237 {"D", "QEMU_LOG_FILENAME", true, handle_arg_log_filename,
3238 "logfile", "override default logfile location"},
3239 {"p", "QEMU_PAGESIZE", true, handle_arg_pagesize,
3240 "pagesize", "set the host page size to 'pagesize'"},
3241 {"singlestep", "QEMU_SINGLESTEP", false, handle_arg_singlestep,
3242 "", "run in singlestep mode"},
3243 {"strace", "QEMU_STRACE", false, handle_arg_strace,
3244 "", "log system calls"},
3245 {"version", "QEMU_VERSION", false, handle_arg_version,
3246 "", "display version information and exit"},
3247 {NULL, NULL, false, NULL, NULL, NULL}
3250 static void usage(void)
3252 const struct qemu_argument *arginfo;
3256 printf("usage: qemu-" TARGET_ARCH " [options] program [arguments...]\n"
3257 "Linux CPU emulator (compiled for " TARGET_ARCH " emulation)\n"
3259 "Options and associated environment variables:\n"
3262 maxarglen = maxenvlen = 0;
3264 for (arginfo = arg_table; arginfo->handle_opt != NULL; arginfo++) {
3265 if (strlen(arginfo->env) > maxenvlen) {
3266 maxenvlen = strlen(arginfo->env);
3268 if (strlen(arginfo->argv) > maxarglen) {
3269 maxarglen = strlen(arginfo->argv);
3273 printf("%-*s%-*sDescription\n", maxarglen+3, "Argument",
3274 maxenvlen+1, "Env-variable");
3276 for (arginfo = arg_table; arginfo->handle_opt != NULL; arginfo++) {
3277 if (arginfo->has_arg) {
3278 printf("-%s %-*s %-*s %s\n", arginfo->argv,
3279 (int)(maxarglen-strlen(arginfo->argv)), arginfo->example,
3280 maxenvlen, arginfo->env, arginfo->help);
3282 printf("-%-*s %-*s %s\n", maxarglen+1, arginfo->argv,
3283 maxenvlen, arginfo->env,
3290 "QEMU_LD_PREFIX = %s\n"
3291 "QEMU_STACK_SIZE = %ld byte\n"
3298 "You can use -E and -U options or the QEMU_SET_ENV and\n"
3299 "QEMU_UNSET_ENV environment variables to set and unset\n"
3300 "environment variables for the target process.\n"
3301 "It is possible to provide several variables by separating them\n"
3302 "by commas in getsubopt(3) style. Additionally it is possible to\n"
3303 "provide the -E and -U options multiple times.\n"
3304 "The following lines are equivalent:\n"
3305 " -E var1=val2 -E var2=val2 -U LD_PRELOAD -U LD_DEBUG\n"
3306 " -E var1=val2,var2=val2 -U LD_PRELOAD,LD_DEBUG\n"
3307 " QEMU_SET_ENV=var1=val2,var2=val2 QEMU_UNSET_ENV=LD_PRELOAD,LD_DEBUG\n"
3308 "Note that if you provide several changes to a single variable\n"
3309 "the last change will stay in effect.\n");
3314 static int parse_args(int argc, char **argv)
3318 const struct qemu_argument *arginfo;
3320 for (arginfo = arg_table; arginfo->handle_opt != NULL; arginfo++) {
3321 if (arginfo->env == NULL) {
3325 r = getenv(arginfo->env);
3327 arginfo->handle_opt(r);
3333 if (optind >= argc) {
3342 if (!strcmp(r, "-")) {
3346 for (arginfo = arg_table; arginfo->handle_opt != NULL; arginfo++) {
3347 if (!strcmp(r, arginfo->argv)) {
3348 if (arginfo->has_arg) {
3349 if (optind >= argc) {
3352 arginfo->handle_opt(argv[optind]);
3355 arginfo->handle_opt(NULL);
3361 /* no option matched the current argv */
3362 if (arginfo->handle_opt == NULL) {
3367 if (optind >= argc) {
3371 filename = argv[optind];
3372 exec_path = argv[optind];
3377 int main(int argc, char **argv, char **envp)
3379 const char *log_file = DEBUG_LOGFILE;
3380 struct target_pt_regs regs1, *regs = ®s1;
3381 struct image_info info1, *info = &info1;
3382 struct linux_binprm bprm;
3386 char **target_environ, **wrk;
3392 module_call_init(MODULE_INIT_QOM);
3394 qemu_cache_utils_init(envp);
3396 if ((envlist = envlist_create()) == NULL) {
3397 (void) fprintf(stderr, "Unable to allocate envlist\n");
3401 /* add current environment into the list */
3402 for (wrk = environ; *wrk != NULL; wrk++) {
3403 (void) envlist_setenv(envlist, *wrk);
3406 /* Read the stack limit from the kernel. If it's "unlimited",
3407 then we can do little else besides use the default. */
3410 if (getrlimit(RLIMIT_STACK, &lim) == 0
3411 && lim.rlim_cur != RLIM_INFINITY
3412 && lim.rlim_cur == (target_long)lim.rlim_cur) {
3413 guest_stack_size = lim.rlim_cur;
3418 #if defined(cpudef_setup)
3419 cpudef_setup(); /* parse cpu definitions in target config file (TBD) */
3423 cpu_set_log_filename(log_file);
3424 optind = parse_args(argc, argv);
3427 memset(regs, 0, sizeof(struct target_pt_regs));
3429 /* Zero out image_info */
3430 memset(info, 0, sizeof(struct image_info));
3432 memset(&bprm, 0, sizeof (bprm));
3434 /* Scan interp_prefix dir for replacement files. */
3435 init_paths(interp_prefix);
3437 if (cpu_model == NULL) {
3438 #if defined(TARGET_I386)
3439 #ifdef TARGET_X86_64
3440 cpu_model = "qemu64";
3442 cpu_model = "qemu32";
3444 #elif defined(TARGET_ARM)
3446 #elif defined(TARGET_UNICORE32)
3448 #elif defined(TARGET_M68K)
3450 #elif defined(TARGET_SPARC)
3451 #ifdef TARGET_SPARC64
3452 cpu_model = "TI UltraSparc II";
3454 cpu_model = "Fujitsu MB86904";
3456 #elif defined(TARGET_MIPS)
3457 #if defined(TARGET_ABI_MIPSN32) || defined(TARGET_ABI_MIPSN64)
3462 #elif defined TARGET_OPENRISC
3463 cpu_model = "or1200";
3464 #elif defined(TARGET_PPC)
3466 cpu_model = "970fx";
3475 cpu_exec_init_all();
3476 /* NOTE: we need to init the CPU at this stage to get
3477 qemu_host_page_size */
3478 env = cpu_init(cpu_model);
3480 fprintf(stderr, "Unable to find CPU definition\n");
3483 #if defined(TARGET_I386) || defined(TARGET_SPARC) || defined(TARGET_PPC)
3484 cpu_reset(ENV_GET_CPU(env));
3489 if (getenv("QEMU_STRACE")) {
3493 target_environ = envlist_to_environ(envlist, NULL);
3494 envlist_free(envlist);
3496 #if defined(CONFIG_USE_GUEST_BASE)
3498 * Now that page sizes are configured in cpu_init() we can do
3499 * proper page alignment for guest_base.
3501 guest_base = HOST_PAGE_ALIGN(guest_base);
3503 if (reserved_va || have_guest_base) {
3504 guest_base = init_guest_space(guest_base, reserved_va, 0,
3506 if (guest_base == (unsigned long)-1) {
3507 fprintf(stderr, "Unable to reserve 0x%lx bytes of virtual address "
3508 "space for use as guest address space (check your virtual "
3509 "memory ulimit setting or reserve less using -R option)\n",
3515 mmap_next_start = reserved_va;
3518 #endif /* CONFIG_USE_GUEST_BASE */
3521 * Read in mmap_min_addr kernel parameter. This value is used
3522 * When loading the ELF image to determine whether guest_base
3523 * is needed. It is also used in mmap_find_vma.
3528 if ((fp = fopen("/proc/sys/vm/mmap_min_addr", "r")) != NULL) {
3530 if (fscanf(fp, "%lu", &tmp) == 1) {
3531 mmap_min_addr = tmp;
3532 qemu_log("host mmap_min_addr=0x%lx\n", mmap_min_addr);
3539 * Prepare copy of argv vector for target.
3541 target_argc = argc - optind;
3542 target_argv = calloc(target_argc + 1, sizeof (char *));
3543 if (target_argv == NULL) {
3544 (void) fprintf(stderr, "Unable to allocate memory for target_argv\n");
3549 * If argv0 is specified (using '-0' switch) we replace
3550 * argv[0] pointer with the given one.
3553 if (argv0 != NULL) {
3554 target_argv[i++] = strdup(argv0);
3556 for (; i < target_argc; i++) {
3557 target_argv[i] = strdup(argv[optind + i]);
3559 target_argv[target_argc] = NULL;
3561 ts = g_malloc0 (sizeof(TaskState));
3562 init_task_state(ts);
3563 /* build Task State */
3569 ret = loader_exec(filename, target_argv, target_environ, regs,
3572 printf("Error while loading %s: %s\n", filename, strerror(-ret));
3576 for (wrk = target_environ; *wrk; wrk++) {
3580 free(target_environ);
3582 if (qemu_log_enabled()) {
3583 #if defined(CONFIG_USE_GUEST_BASE)
3584 qemu_log("guest_base 0x%lx\n", guest_base);
3588 qemu_log("start_brk 0x" TARGET_ABI_FMT_lx "\n", info->start_brk);
3589 qemu_log("end_code 0x" TARGET_ABI_FMT_lx "\n", info->end_code);
3590 qemu_log("start_code 0x" TARGET_ABI_FMT_lx "\n",
3592 qemu_log("start_data 0x" TARGET_ABI_FMT_lx "\n",
3594 qemu_log("end_data 0x" TARGET_ABI_FMT_lx "\n", info->end_data);
3595 qemu_log("start_stack 0x" TARGET_ABI_FMT_lx "\n",
3597 qemu_log("brk 0x" TARGET_ABI_FMT_lx "\n", info->brk);
3598 qemu_log("entry 0x" TARGET_ABI_FMT_lx "\n", info->entry);
3601 target_set_brk(info->brk);
3605 #if defined(CONFIG_USE_GUEST_BASE)
3606 /* Now that we've loaded the binary, GUEST_BASE is fixed. Delay
3607 generating the prologue until now so that the prologue can take
3608 the real value of GUEST_BASE into account. */
3609 tcg_prologue_init(&tcg_ctx);
3612 #if defined(TARGET_I386)
3613 cpu_x86_set_cpl(env, 3);
3615 env->cr[0] = CR0_PG_MASK | CR0_WP_MASK | CR0_PE_MASK;
3616 env->hflags |= HF_PE_MASK;
3617 if (env->cpuid_features & CPUID_SSE) {
3618 env->cr[4] |= CR4_OSFXSR_MASK;
3619 env->hflags |= HF_OSFXSR_MASK;
3621 #ifndef TARGET_ABI32
3622 /* enable 64 bit mode if possible */
3623 if (!(env->cpuid_ext2_features & CPUID_EXT2_LM)) {
3624 fprintf(stderr, "The selected x86 CPU does not support 64 bit mode\n");
3627 env->cr[4] |= CR4_PAE_MASK;
3628 env->efer |= MSR_EFER_LMA | MSR_EFER_LME;
3629 env->hflags |= HF_LMA_MASK;
3632 /* flags setup : we activate the IRQs by default as in user mode */
3633 env->eflags |= IF_MASK;
3635 /* linux register setup */
3636 #ifndef TARGET_ABI32
3637 env->regs[R_EAX] = regs->rax;
3638 env->regs[R_EBX] = regs->rbx;
3639 env->regs[R_ECX] = regs->rcx;
3640 env->regs[R_EDX] = regs->rdx;
3641 env->regs[R_ESI] = regs->rsi;
3642 env->regs[R_EDI] = regs->rdi;
3643 env->regs[R_EBP] = regs->rbp;
3644 env->regs[R_ESP] = regs->rsp;
3645 env->eip = regs->rip;
3647 env->regs[R_EAX] = regs->eax;
3648 env->regs[R_EBX] = regs->ebx;
3649 env->regs[R_ECX] = regs->ecx;
3650 env->regs[R_EDX] = regs->edx;
3651 env->regs[R_ESI] = regs->esi;
3652 env->regs[R_EDI] = regs->edi;
3653 env->regs[R_EBP] = regs->ebp;
3654 env->regs[R_ESP] = regs->esp;
3655 env->eip = regs->eip;
3658 /* linux interrupt setup */
3659 #ifndef TARGET_ABI32
3660 env->idt.limit = 511;
3662 env->idt.limit = 255;
3664 env->idt.base = target_mmap(0, sizeof(uint64_t) * (env->idt.limit + 1),
3665 PROT_READ|PROT_WRITE,
3666 MAP_ANONYMOUS|MAP_PRIVATE, -1, 0);
3667 idt_table = g2h(env->idt.base);
3690 /* linux segment setup */
3692 uint64_t *gdt_table;
3693 env->gdt.base = target_mmap(0, sizeof(uint64_t) * TARGET_GDT_ENTRIES,
3694 PROT_READ|PROT_WRITE,
3695 MAP_ANONYMOUS|MAP_PRIVATE, -1, 0);
3696 env->gdt.limit = sizeof(uint64_t) * TARGET_GDT_ENTRIES - 1;
3697 gdt_table = g2h(env->gdt.base);
3699 write_dt(&gdt_table[__USER_CS >> 3], 0, 0xfffff,
3700 DESC_G_MASK | DESC_B_MASK | DESC_P_MASK | DESC_S_MASK |
3701 (3 << DESC_DPL_SHIFT) | (0xa << DESC_TYPE_SHIFT));
3703 /* 64 bit code segment */
3704 write_dt(&gdt_table[__USER_CS >> 3], 0, 0xfffff,
3705 DESC_G_MASK | DESC_B_MASK | DESC_P_MASK | DESC_S_MASK |
3707 (3 << DESC_DPL_SHIFT) | (0xa << DESC_TYPE_SHIFT));
3709 write_dt(&gdt_table[__USER_DS >> 3], 0, 0xfffff,
3710 DESC_G_MASK | DESC_B_MASK | DESC_P_MASK | DESC_S_MASK |
3711 (3 << DESC_DPL_SHIFT) | (0x2 << DESC_TYPE_SHIFT));
3713 cpu_x86_load_seg(env, R_CS, __USER_CS);
3714 cpu_x86_load_seg(env, R_SS, __USER_DS);
3716 cpu_x86_load_seg(env, R_DS, __USER_DS);
3717 cpu_x86_load_seg(env, R_ES, __USER_DS);
3718 cpu_x86_load_seg(env, R_FS, __USER_DS);
3719 cpu_x86_load_seg(env, R_GS, __USER_DS);
3720 /* This hack makes Wine work... */
3721 env->segs[R_FS].selector = 0;
3723 cpu_x86_load_seg(env, R_DS, 0);
3724 cpu_x86_load_seg(env, R_ES, 0);
3725 cpu_x86_load_seg(env, R_FS, 0);
3726 cpu_x86_load_seg(env, R_GS, 0);
3728 #elif defined(TARGET_ARM)
3731 cpsr_write(env, regs->uregs[16], 0xffffffff);
3732 for(i = 0; i < 16; i++) {
3733 env->regs[i] = regs->uregs[i];
3736 if (EF_ARM_EABI_VERSION(info->elf_flags) >= EF_ARM_EABI_VER4
3737 && (info->elf_flags & EF_ARM_BE8)) {
3738 env->bswap_code = 1;
3741 #elif defined(TARGET_UNICORE32)
3744 cpu_asr_write(env, regs->uregs[32], 0xffffffff);
3745 for (i = 0; i < 32; i++) {
3746 env->regs[i] = regs->uregs[i];
3749 #elif defined(TARGET_SPARC)
3753 env->npc = regs->npc;
3755 for(i = 0; i < 8; i++)
3756 env->gregs[i] = regs->u_regs[i];
3757 for(i = 0; i < 8; i++)
3758 env->regwptr[i] = regs->u_regs[i + 8];
3760 #elif defined(TARGET_PPC)
3764 #if defined(TARGET_PPC64)
3765 #if defined(TARGET_ABI32)
3766 env->msr &= ~((target_ulong)1 << MSR_SF);
3768 env->msr |= (target_ulong)1 << MSR_SF;
3771 env->nip = regs->nip;
3772 for(i = 0; i < 32; i++) {
3773 env->gpr[i] = regs->gpr[i];
3776 #elif defined(TARGET_M68K)
3779 env->dregs[0] = regs->d0;
3780 env->dregs[1] = regs->d1;
3781 env->dregs[2] = regs->d2;
3782 env->dregs[3] = regs->d3;
3783 env->dregs[4] = regs->d4;
3784 env->dregs[5] = regs->d5;
3785 env->dregs[6] = regs->d6;
3786 env->dregs[7] = regs->d7;
3787 env->aregs[0] = regs->a0;
3788 env->aregs[1] = regs->a1;
3789 env->aregs[2] = regs->a2;
3790 env->aregs[3] = regs->a3;
3791 env->aregs[4] = regs->a4;
3792 env->aregs[5] = regs->a5;
3793 env->aregs[6] = regs->a6;
3794 env->aregs[7] = regs->usp;
3796 ts->sim_syscalls = 1;
3798 #elif defined(TARGET_MICROBLAZE)
3800 env->regs[0] = regs->r0;
3801 env->regs[1] = regs->r1;
3802 env->regs[2] = regs->r2;
3803 env->regs[3] = regs->r3;
3804 env->regs[4] = regs->r4;
3805 env->regs[5] = regs->r5;
3806 env->regs[6] = regs->r6;
3807 env->regs[7] = regs->r7;
3808 env->regs[8] = regs->r8;
3809 env->regs[9] = regs->r9;
3810 env->regs[10] = regs->r10;
3811 env->regs[11] = regs->r11;
3812 env->regs[12] = regs->r12;
3813 env->regs[13] = regs->r13;
3814 env->regs[14] = regs->r14;
3815 env->regs[15] = regs->r15;
3816 env->regs[16] = regs->r16;
3817 env->regs[17] = regs->r17;
3818 env->regs[18] = regs->r18;
3819 env->regs[19] = regs->r19;
3820 env->regs[20] = regs->r20;
3821 env->regs[21] = regs->r21;
3822 env->regs[22] = regs->r22;
3823 env->regs[23] = regs->r23;
3824 env->regs[24] = regs->r24;
3825 env->regs[25] = regs->r25;
3826 env->regs[26] = regs->r26;
3827 env->regs[27] = regs->r27;
3828 env->regs[28] = regs->r28;
3829 env->regs[29] = regs->r29;
3830 env->regs[30] = regs->r30;
3831 env->regs[31] = regs->r31;
3832 env->sregs[SR_PC] = regs->pc;
3834 #elif defined(TARGET_MIPS)
3838 for(i = 0; i < 32; i++) {
3839 env->active_tc.gpr[i] = regs->regs[i];
3841 env->active_tc.PC = regs->cp0_epc & ~(target_ulong)1;
3842 if (regs->cp0_epc & 1) {
3843 env->hflags |= MIPS_HFLAG_M16;
3846 #elif defined(TARGET_OPENRISC)
3850 for (i = 0; i < 32; i++) {
3851 env->gpr[i] = regs->gpr[i];
3857 #elif defined(TARGET_SH4)
3861 for(i = 0; i < 16; i++) {
3862 env->gregs[i] = regs->regs[i];
3866 #elif defined(TARGET_ALPHA)
3870 for(i = 0; i < 28; i++) {
3871 env->ir[i] = ((abi_ulong *)regs)[i];
3873 env->ir[IR_SP] = regs->usp;
3876 #elif defined(TARGET_CRIS)
3878 env->regs[0] = regs->r0;
3879 env->regs[1] = regs->r1;
3880 env->regs[2] = regs->r2;
3881 env->regs[3] = regs->r3;
3882 env->regs[4] = regs->r4;
3883 env->regs[5] = regs->r5;
3884 env->regs[6] = regs->r6;
3885 env->regs[7] = regs->r7;
3886 env->regs[8] = regs->r8;
3887 env->regs[9] = regs->r9;
3888 env->regs[10] = regs->r10;
3889 env->regs[11] = regs->r11;
3890 env->regs[12] = regs->r12;
3891 env->regs[13] = regs->r13;
3892 env->regs[14] = info->start_stack;
3893 env->regs[15] = regs->acr;
3894 env->pc = regs->erp;
3896 #elif defined(TARGET_S390X)
3899 for (i = 0; i < 16; i++) {
3900 env->regs[i] = regs->gprs[i];
3902 env->psw.mask = regs->psw.mask;
3903 env->psw.addr = regs->psw.addr;
3906 #error unsupported target CPU
3909 #if defined(TARGET_ARM) || defined(TARGET_M68K) || defined(TARGET_UNICORE32)
3910 ts->stack_base = info->start_stack;
3911 ts->heap_base = info->brk;
3912 /* This will be filled in on the first SYS_HEAPINFO call. */
3917 if (gdbserver_start(gdbstub_port) < 0) {
3918 fprintf(stderr, "qemu: could not open gdbserver on port %d\n",
3922 gdb_handlesig(env, 0);