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 /* timers for rdtsc */
96 static uint64_t emu_time;
98 int64_t cpu_get_real_ticks(void)
105 #if defined(CONFIG_USE_NPTL)
106 /***********************************************************/
107 /* Helper routines for implementing atomic operations. */
109 /* To implement exclusive operations we force all cpus to syncronise.
110 We don't require a full sync, only that no cpus are executing guest code.
111 The alternative is to map target atomic ops onto host equivalents,
112 which requires quite a lot of per host/target work. */
113 static pthread_mutex_t cpu_list_mutex = PTHREAD_MUTEX_INITIALIZER;
114 static pthread_mutex_t exclusive_lock = PTHREAD_MUTEX_INITIALIZER;
115 static pthread_cond_t exclusive_cond = PTHREAD_COND_INITIALIZER;
116 static pthread_cond_t exclusive_resume = PTHREAD_COND_INITIALIZER;
117 static int pending_cpus;
119 /* Make sure everything is in a consistent state for calling fork(). */
120 void fork_start(void)
122 pthread_mutex_lock(&tb_lock);
123 pthread_mutex_lock(&exclusive_lock);
127 void fork_end(int child)
129 mmap_fork_end(child);
131 /* Child processes created by fork() only have a single thread.
132 Discard information about the parent threads. */
133 first_cpu = thread_env;
134 thread_env->next_cpu = NULL;
136 pthread_mutex_init(&exclusive_lock, NULL);
137 pthread_mutex_init(&cpu_list_mutex, NULL);
138 pthread_cond_init(&exclusive_cond, NULL);
139 pthread_cond_init(&exclusive_resume, NULL);
140 pthread_mutex_init(&tb_lock, NULL);
141 gdbserver_fork(thread_env);
143 pthread_mutex_unlock(&exclusive_lock);
144 pthread_mutex_unlock(&tb_lock);
148 /* Wait for pending exclusive operations to complete. The exclusive lock
150 static inline void exclusive_idle(void)
152 while (pending_cpus) {
153 pthread_cond_wait(&exclusive_resume, &exclusive_lock);
157 /* Start an exclusive operation.
158 Must only be called from outside cpu_arm_exec. */
159 static inline void start_exclusive(void)
162 pthread_mutex_lock(&exclusive_lock);
166 /* Make all other cpus stop executing. */
167 for (other = first_cpu; other; other = other->next_cpu) {
168 if (other->running) {
173 if (pending_cpus > 1) {
174 pthread_cond_wait(&exclusive_cond, &exclusive_lock);
178 /* Finish an exclusive operation. */
179 static inline void end_exclusive(void)
182 pthread_cond_broadcast(&exclusive_resume);
183 pthread_mutex_unlock(&exclusive_lock);
186 /* Wait for exclusive ops to finish, and begin cpu execution. */
187 static inline void cpu_exec_start(CPUArchState *env)
189 pthread_mutex_lock(&exclusive_lock);
192 pthread_mutex_unlock(&exclusive_lock);
195 /* Mark cpu as not executing, and release pending exclusive ops. */
196 static inline void cpu_exec_end(CPUArchState *env)
198 pthread_mutex_lock(&exclusive_lock);
200 if (pending_cpus > 1) {
202 if (pending_cpus == 1) {
203 pthread_cond_signal(&exclusive_cond);
207 pthread_mutex_unlock(&exclusive_lock);
210 void cpu_list_lock(void)
212 pthread_mutex_lock(&cpu_list_mutex);
215 void cpu_list_unlock(void)
217 pthread_mutex_unlock(&cpu_list_mutex);
219 #else /* if !CONFIG_USE_NPTL */
220 /* These are no-ops because we are not threadsafe. */
221 static inline void cpu_exec_start(CPUArchState *env)
225 static inline void cpu_exec_end(CPUArchState *env)
229 static inline void start_exclusive(void)
233 static inline void end_exclusive(void)
237 void fork_start(void)
241 void fork_end(int child)
244 gdbserver_fork(thread_env);
248 void cpu_list_lock(void)
252 void cpu_list_unlock(void)
259 /***********************************************************/
260 /* CPUX86 core interface */
262 void cpu_smm_update(CPUX86State *env)
266 uint64_t cpu_get_tsc(CPUX86State *env)
268 return cpu_get_real_ticks();
271 static void write_dt(void *ptr, unsigned long addr, unsigned long limit,
276 e1 = (addr << 16) | (limit & 0xffff);
277 e2 = ((addr >> 16) & 0xff) | (addr & 0xff000000) | (limit & 0x000f0000);
284 static uint64_t *idt_table;
286 static void set_gate64(void *ptr, unsigned int type, unsigned int dpl,
287 uint64_t addr, unsigned int sel)
290 e1 = (addr & 0xffff) | (sel << 16);
291 e2 = (addr & 0xffff0000) | 0x8000 | (dpl << 13) | (type << 8);
295 p[2] = tswap32(addr >> 32);
298 /* only dpl matters as we do only user space emulation */
299 static void set_idt(int n, unsigned int dpl)
301 set_gate64(idt_table + n * 2, 0, dpl, 0, 0);
304 static void set_gate(void *ptr, unsigned int type, unsigned int dpl,
305 uint32_t addr, unsigned int sel)
308 e1 = (addr & 0xffff) | (sel << 16);
309 e2 = (addr & 0xffff0000) | 0x8000 | (dpl << 13) | (type << 8);
315 /* only dpl matters as we do only user space emulation */
316 static void set_idt(int n, unsigned int dpl)
318 set_gate(idt_table + n, 0, dpl, 0, 0);
322 void cpu_loop(CPUX86State *env)
326 target_siginfo_t info;
329 trapnr = cpu_x86_exec(env);
332 /* linux syscall from int $0x80 */
333 env->regs[R_EAX] = do_syscall(env,
345 /* linux syscall from syscall instruction */
346 env->regs[R_EAX] = do_syscall(env,
355 env->eip = env->exception_next_eip;
360 info.si_signo = SIGBUS;
362 info.si_code = TARGET_SI_KERNEL;
363 info._sifields._sigfault._addr = 0;
364 queue_signal(env, info.si_signo, &info);
367 /* XXX: potential problem if ABI32 */
368 #ifndef TARGET_X86_64
369 if (env->eflags & VM_MASK) {
370 handle_vm86_fault(env);
374 info.si_signo = SIGSEGV;
376 info.si_code = TARGET_SI_KERNEL;
377 info._sifields._sigfault._addr = 0;
378 queue_signal(env, info.si_signo, &info);
382 info.si_signo = SIGSEGV;
384 if (!(env->error_code & 1))
385 info.si_code = TARGET_SEGV_MAPERR;
387 info.si_code = TARGET_SEGV_ACCERR;
388 info._sifields._sigfault._addr = env->cr[2];
389 queue_signal(env, info.si_signo, &info);
392 #ifndef TARGET_X86_64
393 if (env->eflags & VM_MASK) {
394 handle_vm86_trap(env, trapnr);
398 /* division by zero */
399 info.si_signo = SIGFPE;
401 info.si_code = TARGET_FPE_INTDIV;
402 info._sifields._sigfault._addr = env->eip;
403 queue_signal(env, info.si_signo, &info);
408 #ifndef TARGET_X86_64
409 if (env->eflags & VM_MASK) {
410 handle_vm86_trap(env, trapnr);
414 info.si_signo = SIGTRAP;
416 if (trapnr == EXCP01_DB) {
417 info.si_code = TARGET_TRAP_BRKPT;
418 info._sifields._sigfault._addr = env->eip;
420 info.si_code = TARGET_SI_KERNEL;
421 info._sifields._sigfault._addr = 0;
423 queue_signal(env, info.si_signo, &info);
428 #ifndef TARGET_X86_64
429 if (env->eflags & VM_MASK) {
430 handle_vm86_trap(env, trapnr);
434 info.si_signo = SIGSEGV;
436 info.si_code = TARGET_SI_KERNEL;
437 info._sifields._sigfault._addr = 0;
438 queue_signal(env, info.si_signo, &info);
442 info.si_signo = SIGILL;
444 info.si_code = TARGET_ILL_ILLOPN;
445 info._sifields._sigfault._addr = env->eip;
446 queue_signal(env, info.si_signo, &info);
449 /* just indicate that signals should be handled asap */
455 sig = gdb_handlesig (env, TARGET_SIGTRAP);
460 info.si_code = TARGET_TRAP_BRKPT;
461 queue_signal(env, info.si_signo, &info);
466 pc = env->segs[R_CS].base + env->eip;
467 fprintf(stderr, "qemu: 0x%08lx: unhandled CPU exception 0x%x - aborting\n",
471 process_pending_signals(env);
478 #define get_user_code_u32(x, gaddr, doswap) \
479 ({ abi_long __r = get_user_u32((x), (gaddr)); \
480 if (!__r && (doswap)) { \
486 #define get_user_code_u16(x, gaddr, doswap) \
487 ({ abi_long __r = get_user_u16((x), (gaddr)); \
488 if (!__r && (doswap)) { \
495 * See the Linux kernel's Documentation/arm/kernel_user_helpers.txt
497 * r0 = pointer to oldval
498 * r1 = pointer to newval
499 * r2 = pointer to target value
502 * r0 = 0 if *ptr was changed, non-0 if no exchange happened
503 * C set if *ptr was changed, clear if no exchange happened
505 * Note segv's in kernel helpers are a bit tricky, we can set the
506 * data address sensibly but the PC address is just the entry point.
508 static void arm_kernel_cmpxchg64_helper(CPUARMState *env)
510 uint64_t oldval, newval, val;
512 target_siginfo_t info;
514 /* Based on the 32 bit code in do_kernel_trap */
516 /* XXX: This only works between threads, not between processes.
517 It's probably possible to implement this with native host
518 operations. However things like ldrex/strex are much harder so
519 there's not much point trying. */
521 cpsr = cpsr_read(env);
524 if (get_user_u64(oldval, env->regs[0])) {
525 env->cp15.c6_data = env->regs[0];
529 if (get_user_u64(newval, env->regs[1])) {
530 env->cp15.c6_data = env->regs[1];
534 if (get_user_u64(val, addr)) {
535 env->cp15.c6_data = addr;
542 if (put_user_u64(val, addr)) {
543 env->cp15.c6_data = addr;
553 cpsr_write(env, cpsr, CPSR_C);
559 /* We get the PC of the entry address - which is as good as anything,
560 on a real kernel what you get depends on which mode it uses. */
561 info.si_signo = SIGSEGV;
563 /* XXX: check env->error_code */
564 info.si_code = TARGET_SEGV_MAPERR;
565 info._sifields._sigfault._addr = env->cp15.c6_data;
566 queue_signal(env, info.si_signo, &info);
571 /* Handle a jump to the kernel code page. */
573 do_kernel_trap(CPUARMState *env)
579 switch (env->regs[15]) {
580 case 0xffff0fa0: /* __kernel_memory_barrier */
581 /* ??? No-op. Will need to do better for SMP. */
583 case 0xffff0fc0: /* __kernel_cmpxchg */
584 /* XXX: This only works between threads, not between processes.
585 It's probably possible to implement this with native host
586 operations. However things like ldrex/strex are much harder so
587 there's not much point trying. */
589 cpsr = cpsr_read(env);
591 /* FIXME: This should SEGV if the access fails. */
592 if (get_user_u32(val, addr))
594 if (val == env->regs[0]) {
596 /* FIXME: Check for segfaults. */
597 put_user_u32(val, addr);
604 cpsr_write(env, cpsr, CPSR_C);
607 case 0xffff0fe0: /* __kernel_get_tls */
608 env->regs[0] = env->cp15.c13_tls2;
610 case 0xffff0f60: /* __kernel_cmpxchg64 */
611 arm_kernel_cmpxchg64_helper(env);
617 /* Jump back to the caller. */
618 addr = env->regs[14];
623 env->regs[15] = addr;
628 static int do_strex(CPUARMState *env)
636 addr = env->exclusive_addr;
637 if (addr != env->exclusive_test) {
640 size = env->exclusive_info & 0xf;
643 segv = get_user_u8(val, addr);
646 segv = get_user_u16(val, addr);
650 segv = get_user_u32(val, addr);
656 env->cp15.c6_data = addr;
659 if (val != env->exclusive_val) {
663 segv = get_user_u32(val, addr + 4);
665 env->cp15.c6_data = addr + 4;
668 if (val != env->exclusive_high) {
672 val = env->regs[(env->exclusive_info >> 8) & 0xf];
675 segv = put_user_u8(val, addr);
678 segv = put_user_u16(val, addr);
682 segv = put_user_u32(val, addr);
686 env->cp15.c6_data = addr;
690 val = env->regs[(env->exclusive_info >> 12) & 0xf];
691 segv = put_user_u32(val, addr + 4);
693 env->cp15.c6_data = addr + 4;
700 env->regs[(env->exclusive_info >> 4) & 0xf] = rc;
706 void cpu_loop(CPUARMState *env)
709 unsigned int n, insn;
710 target_siginfo_t info;
715 trapnr = cpu_arm_exec(env);
720 TaskState *ts = env->opaque;
724 /* we handle the FPU emulation here, as Linux */
725 /* we get the opcode */
726 /* FIXME - what to do if get_user() fails? */
727 get_user_code_u32(opcode, env->regs[15], env->bswap_code);
729 rc = EmulateAll(opcode, &ts->fpa, env);
730 if (rc == 0) { /* illegal instruction */
731 info.si_signo = SIGILL;
733 info.si_code = TARGET_ILL_ILLOPN;
734 info._sifields._sigfault._addr = env->regs[15];
735 queue_signal(env, info.si_signo, &info);
736 } else if (rc < 0) { /* FP exception */
739 /* translate softfloat flags to FPSR flags */
740 if (-rc & float_flag_invalid)
742 if (-rc & float_flag_divbyzero)
744 if (-rc & float_flag_overflow)
746 if (-rc & float_flag_underflow)
748 if (-rc & float_flag_inexact)
751 FPSR fpsr = ts->fpa.fpsr;
752 //printf("fpsr 0x%x, arm_fpe 0x%x\n",fpsr,arm_fpe);
754 if (fpsr & (arm_fpe << 16)) { /* exception enabled? */
755 info.si_signo = SIGFPE;
758 /* ordered by priority, least first */
759 if (arm_fpe & BIT_IXC) info.si_code = TARGET_FPE_FLTRES;
760 if (arm_fpe & BIT_UFC) info.si_code = TARGET_FPE_FLTUND;
761 if (arm_fpe & BIT_OFC) info.si_code = TARGET_FPE_FLTOVF;
762 if (arm_fpe & BIT_DZC) info.si_code = TARGET_FPE_FLTDIV;
763 if (arm_fpe & BIT_IOC) info.si_code = TARGET_FPE_FLTINV;
765 info._sifields._sigfault._addr = env->regs[15];
766 queue_signal(env, info.si_signo, &info);
771 /* accumulate unenabled exceptions */
772 if ((!(fpsr & BIT_IXE)) && (arm_fpe & BIT_IXC))
774 if ((!(fpsr & BIT_UFE)) && (arm_fpe & BIT_UFC))
776 if ((!(fpsr & BIT_OFE)) && (arm_fpe & BIT_OFC))
778 if ((!(fpsr & BIT_DZE)) && (arm_fpe & BIT_DZC))
780 if ((!(fpsr & BIT_IOE)) && (arm_fpe & BIT_IOC))
783 } else { /* everything OK */
794 if (trapnr == EXCP_BKPT) {
796 /* FIXME - what to do if get_user() fails? */
797 get_user_code_u16(insn, env->regs[15], env->bswap_code);
801 /* FIXME - what to do if get_user() fails? */
802 get_user_code_u32(insn, env->regs[15], env->bswap_code);
803 n = (insn & 0xf) | ((insn >> 4) & 0xff0);
808 /* FIXME - what to do if get_user() fails? */
809 get_user_code_u16(insn, env->regs[15] - 2,
813 /* FIXME - what to do if get_user() fails? */
814 get_user_code_u32(insn, env->regs[15] - 4,
820 if (n == ARM_NR_cacheflush) {
822 } else if (n == ARM_NR_semihosting
823 || n == ARM_NR_thumb_semihosting) {
824 env->regs[0] = do_arm_semihosting (env);
825 } else if (n == 0 || n >= ARM_SYSCALL_BASE || env->thumb) {
827 if (env->thumb || n == 0) {
830 n -= ARM_SYSCALL_BASE;
833 if ( n > ARM_NR_BASE) {
835 case ARM_NR_cacheflush:
839 cpu_set_tls(env, env->regs[0]);
843 gemu_log("qemu: Unsupported ARM syscall: 0x%x\n",
845 env->regs[0] = -TARGET_ENOSYS;
849 env->regs[0] = do_syscall(env,
865 /* just indicate that signals should be handled asap */
867 case EXCP_PREFETCH_ABORT:
868 addr = env->cp15.c6_insn;
870 case EXCP_DATA_ABORT:
871 addr = env->cp15.c6_data;
874 info.si_signo = SIGSEGV;
876 /* XXX: check env->error_code */
877 info.si_code = TARGET_SEGV_MAPERR;
878 info._sifields._sigfault._addr = addr;
879 queue_signal(env, info.si_signo, &info);
886 sig = gdb_handlesig (env, TARGET_SIGTRAP);
891 info.si_code = TARGET_TRAP_BRKPT;
892 queue_signal(env, info.si_signo, &info);
896 case EXCP_KERNEL_TRAP:
897 if (do_kernel_trap(env))
902 addr = env->cp15.c6_data;
908 fprintf(stderr, "qemu: unhandled CPU exception 0x%x - aborting\n",
910 cpu_dump_state(env, stderr, fprintf, 0);
913 process_pending_signals(env);
919 #ifdef TARGET_UNICORE32
921 void cpu_loop(CPUUniCore32State *env)
924 unsigned int n, insn;
925 target_siginfo_t info;
929 trapnr = uc32_cpu_exec(env);
935 get_user_u32(insn, env->regs[31] - 4);
938 if (n >= UC32_SYSCALL_BASE) {
940 n -= UC32_SYSCALL_BASE;
941 if (n == UC32_SYSCALL_NR_set_tls) {
942 cpu_set_tls(env, env->regs[0]);
945 env->regs[0] = do_syscall(env,
960 case UC32_EXCP_DTRAP:
961 case UC32_EXCP_ITRAP:
962 info.si_signo = SIGSEGV;
964 /* XXX: check env->error_code */
965 info.si_code = TARGET_SEGV_MAPERR;
966 info._sifields._sigfault._addr = env->cp0.c4_faultaddr;
967 queue_signal(env, info.si_signo, &info);
970 /* just indicate that signals should be handled asap */
976 sig = gdb_handlesig(env, TARGET_SIGTRAP);
980 info.si_code = TARGET_TRAP_BRKPT;
981 queue_signal(env, info.si_signo, &info);
988 process_pending_signals(env);
992 fprintf(stderr, "qemu: unhandled CPU exception 0x%x - aborting\n", trapnr);
993 cpu_dump_state(env, stderr, fprintf, 0);
999 #define SPARC64_STACK_BIAS 2047
1003 /* WARNING: dealing with register windows _is_ complicated. More info
1004 can be found at http://www.sics.se/~psm/sparcstack.html */
1005 static inline int get_reg_index(CPUSPARCState *env, int cwp, int index)
1007 index = (index + cwp * 16) % (16 * env->nwindows);
1008 /* wrap handling : if cwp is on the last window, then we use the
1009 registers 'after' the end */
1010 if (index < 8 && env->cwp == env->nwindows - 1)
1011 index += 16 * env->nwindows;
1015 /* save the register window 'cwp1' */
1016 static inline void save_window_offset(CPUSPARCState *env, int cwp1)
1021 sp_ptr = env->regbase[get_reg_index(env, cwp1, 6)];
1022 #ifdef TARGET_SPARC64
1024 sp_ptr += SPARC64_STACK_BIAS;
1026 #if defined(DEBUG_WIN)
1027 printf("win_overflow: sp_ptr=0x" TARGET_ABI_FMT_lx " save_cwp=%d\n",
1030 for(i = 0; i < 16; i++) {
1031 /* FIXME - what to do if put_user() fails? */
1032 put_user_ual(env->regbase[get_reg_index(env, cwp1, 8 + i)], sp_ptr);
1033 sp_ptr += sizeof(abi_ulong);
1037 static void save_window(CPUSPARCState *env)
1039 #ifndef TARGET_SPARC64
1040 unsigned int new_wim;
1041 new_wim = ((env->wim >> 1) | (env->wim << (env->nwindows - 1))) &
1042 ((1LL << env->nwindows) - 1);
1043 save_window_offset(env, cpu_cwp_dec(env, env->cwp - 2));
1046 save_window_offset(env, cpu_cwp_dec(env, env->cwp - 2));
1052 static void restore_window(CPUSPARCState *env)
1054 #ifndef TARGET_SPARC64
1055 unsigned int new_wim;
1057 unsigned int i, cwp1;
1060 #ifndef TARGET_SPARC64
1061 new_wim = ((env->wim << 1) | (env->wim >> (env->nwindows - 1))) &
1062 ((1LL << env->nwindows) - 1);
1065 /* restore the invalid window */
1066 cwp1 = cpu_cwp_inc(env, env->cwp + 1);
1067 sp_ptr = env->regbase[get_reg_index(env, cwp1, 6)];
1068 #ifdef TARGET_SPARC64
1070 sp_ptr += SPARC64_STACK_BIAS;
1072 #if defined(DEBUG_WIN)
1073 printf("win_underflow: sp_ptr=0x" TARGET_ABI_FMT_lx " load_cwp=%d\n",
1076 for(i = 0; i < 16; i++) {
1077 /* FIXME - what to do if get_user() fails? */
1078 get_user_ual(env->regbase[get_reg_index(env, cwp1, 8 + i)], sp_ptr);
1079 sp_ptr += sizeof(abi_ulong);
1081 #ifdef TARGET_SPARC64
1083 if (env->cleanwin < env->nwindows - 1)
1091 static void flush_windows(CPUSPARCState *env)
1097 /* if restore would invoke restore_window(), then we can stop */
1098 cwp1 = cpu_cwp_inc(env, env->cwp + offset);
1099 #ifndef TARGET_SPARC64
1100 if (env->wim & (1 << cwp1))
1103 if (env->canrestore == 0)
1108 save_window_offset(env, cwp1);
1111 cwp1 = cpu_cwp_inc(env, env->cwp + 1);
1112 #ifndef TARGET_SPARC64
1113 /* set wim so that restore will reload the registers */
1114 env->wim = 1 << cwp1;
1116 #if defined(DEBUG_WIN)
1117 printf("flush_windows: nb=%d\n", offset - 1);
1121 void cpu_loop (CPUSPARCState *env)
1125 target_siginfo_t info;
1128 trapnr = cpu_sparc_exec (env);
1131 #ifndef TARGET_SPARC64
1138 ret = do_syscall (env, env->gregs[1],
1139 env->regwptr[0], env->regwptr[1],
1140 env->regwptr[2], env->regwptr[3],
1141 env->regwptr[4], env->regwptr[5],
1143 if ((abi_ulong)ret >= (abi_ulong)(-515)) {
1144 #if defined(TARGET_SPARC64) && !defined(TARGET_ABI32)
1145 env->xcc |= PSR_CARRY;
1147 env->psr |= PSR_CARRY;
1151 #if defined(TARGET_SPARC64) && !defined(TARGET_ABI32)
1152 env->xcc &= ~PSR_CARRY;
1154 env->psr &= ~PSR_CARRY;
1157 env->regwptr[0] = ret;
1158 /* next instruction */
1160 env->npc = env->npc + 4;
1162 case 0x83: /* flush windows */
1167 /* next instruction */
1169 env->npc = env->npc + 4;
1171 #ifndef TARGET_SPARC64
1172 case TT_WIN_OVF: /* window overflow */
1175 case TT_WIN_UNF: /* window underflow */
1176 restore_window(env);
1181 info.si_signo = TARGET_SIGSEGV;
1183 /* XXX: check env->error_code */
1184 info.si_code = TARGET_SEGV_MAPERR;
1185 info._sifields._sigfault._addr = env->mmuregs[4];
1186 queue_signal(env, info.si_signo, &info);
1190 case TT_SPILL: /* window overflow */
1193 case TT_FILL: /* window underflow */
1194 restore_window(env);
1199 info.si_signo = TARGET_SIGSEGV;
1201 /* XXX: check env->error_code */
1202 info.si_code = TARGET_SEGV_MAPERR;
1203 if (trapnr == TT_DFAULT)
1204 info._sifields._sigfault._addr = env->dmmuregs[4];
1206 info._sifields._sigfault._addr = cpu_tsptr(env)->tpc;
1207 queue_signal(env, info.si_signo, &info);
1210 #ifndef TARGET_ABI32
1213 sparc64_get_context(env);
1217 sparc64_set_context(env);
1221 case EXCP_INTERRUPT:
1222 /* just indicate that signals should be handled asap */
1226 info.si_signo = TARGET_SIGILL;
1228 info.si_code = TARGET_ILL_ILLOPC;
1229 info._sifields._sigfault._addr = env->pc;
1230 queue_signal(env, info.si_signo, &info);
1237 sig = gdb_handlesig (env, TARGET_SIGTRAP);
1240 info.si_signo = sig;
1242 info.si_code = TARGET_TRAP_BRKPT;
1243 queue_signal(env, info.si_signo, &info);
1248 printf ("Unhandled trap: 0x%x\n", trapnr);
1249 cpu_dump_state(env, stderr, fprintf, 0);
1252 process_pending_signals (env);
1259 static inline uint64_t cpu_ppc_get_tb(CPUPPCState *env)
1265 uint64_t cpu_ppc_load_tbl(CPUPPCState *env)
1267 return cpu_ppc_get_tb(env);
1270 uint32_t cpu_ppc_load_tbu(CPUPPCState *env)
1272 return cpu_ppc_get_tb(env) >> 32;
1275 uint64_t cpu_ppc_load_atbl(CPUPPCState *env)
1277 return cpu_ppc_get_tb(env);
1280 uint32_t cpu_ppc_load_atbu(CPUPPCState *env)
1282 return cpu_ppc_get_tb(env) >> 32;
1285 uint32_t cpu_ppc601_load_rtcu(CPUPPCState *env)
1286 __attribute__ (( alias ("cpu_ppc_load_tbu") ));
1288 uint32_t cpu_ppc601_load_rtcl(CPUPPCState *env)
1290 return cpu_ppc_load_tbl(env) & 0x3FFFFF80;
1293 /* XXX: to be fixed */
1294 int ppc_dcr_read (ppc_dcr_t *dcr_env, int dcrn, uint32_t *valp)
1299 int ppc_dcr_write (ppc_dcr_t *dcr_env, int dcrn, uint32_t val)
1304 #define EXCP_DUMP(env, fmt, ...) \
1306 fprintf(stderr, fmt , ## __VA_ARGS__); \
1307 cpu_dump_state(env, stderr, fprintf, 0); \
1308 qemu_log(fmt, ## __VA_ARGS__); \
1309 if (qemu_log_enabled()) { \
1310 log_cpu_state(env, 0); \
1314 static int do_store_exclusive(CPUPPCState *env)
1317 target_ulong page_addr;
1322 addr = env->reserve_ea;
1323 page_addr = addr & TARGET_PAGE_MASK;
1326 flags = page_get_flags(page_addr);
1327 if ((flags & PAGE_READ) == 0) {
1330 int reg = env->reserve_info & 0x1f;
1331 int size = (env->reserve_info >> 5) & 0xf;
1334 if (addr == env->reserve_addr) {
1336 case 1: segv = get_user_u8(val, addr); break;
1337 case 2: segv = get_user_u16(val, addr); break;
1338 case 4: segv = get_user_u32(val, addr); break;
1339 #if defined(TARGET_PPC64)
1340 case 8: segv = get_user_u64(val, addr); break;
1344 if (!segv && val == env->reserve_val) {
1345 val = env->gpr[reg];
1347 case 1: segv = put_user_u8(val, addr); break;
1348 case 2: segv = put_user_u16(val, addr); break;
1349 case 4: segv = put_user_u32(val, addr); break;
1350 #if defined(TARGET_PPC64)
1351 case 8: segv = put_user_u64(val, addr); break;
1360 env->crf[0] = (stored << 1) | xer_so;
1361 env->reserve_addr = (target_ulong)-1;
1371 void cpu_loop(CPUPPCState *env)
1373 target_siginfo_t info;
1378 cpu_exec_start(env);
1379 trapnr = cpu_ppc_exec(env);
1382 case POWERPC_EXCP_NONE:
1385 case POWERPC_EXCP_CRITICAL: /* Critical input */
1386 cpu_abort(env, "Critical interrupt while in user mode. "
1389 case POWERPC_EXCP_MCHECK: /* Machine check exception */
1390 cpu_abort(env, "Machine check exception while in user mode. "
1393 case POWERPC_EXCP_DSI: /* Data storage exception */
1394 EXCP_DUMP(env, "Invalid data memory access: 0x" TARGET_FMT_lx "\n",
1396 /* XXX: check this. Seems bugged */
1397 switch (env->error_code & 0xFF000000) {
1399 info.si_signo = TARGET_SIGSEGV;
1401 info.si_code = TARGET_SEGV_MAPERR;
1404 info.si_signo = TARGET_SIGILL;
1406 info.si_code = TARGET_ILL_ILLADR;
1409 info.si_signo = TARGET_SIGSEGV;
1411 info.si_code = TARGET_SEGV_ACCERR;
1414 /* Let's send a regular segfault... */
1415 EXCP_DUMP(env, "Invalid segfault errno (%02x)\n",
1417 info.si_signo = TARGET_SIGSEGV;
1419 info.si_code = TARGET_SEGV_MAPERR;
1422 info._sifields._sigfault._addr = env->nip;
1423 queue_signal(env, info.si_signo, &info);
1425 case POWERPC_EXCP_ISI: /* Instruction storage exception */
1426 EXCP_DUMP(env, "Invalid instruction fetch: 0x\n" TARGET_FMT_lx
1427 "\n", env->spr[SPR_SRR0]);
1428 /* XXX: check this */
1429 switch (env->error_code & 0xFF000000) {
1431 info.si_signo = TARGET_SIGSEGV;
1433 info.si_code = TARGET_SEGV_MAPERR;
1437 info.si_signo = TARGET_SIGSEGV;
1439 info.si_code = TARGET_SEGV_ACCERR;
1442 /* Let's send a regular segfault... */
1443 EXCP_DUMP(env, "Invalid segfault errno (%02x)\n",
1445 info.si_signo = TARGET_SIGSEGV;
1447 info.si_code = TARGET_SEGV_MAPERR;
1450 info._sifields._sigfault._addr = env->nip - 4;
1451 queue_signal(env, info.si_signo, &info);
1453 case POWERPC_EXCP_EXTERNAL: /* External input */
1454 cpu_abort(env, "External interrupt while in user mode. "
1457 case POWERPC_EXCP_ALIGN: /* Alignment exception */
1458 EXCP_DUMP(env, "Unaligned memory access\n");
1459 /* XXX: check this */
1460 info.si_signo = TARGET_SIGBUS;
1462 info.si_code = TARGET_BUS_ADRALN;
1463 info._sifields._sigfault._addr = env->nip - 4;
1464 queue_signal(env, info.si_signo, &info);
1466 case POWERPC_EXCP_PROGRAM: /* Program exception */
1467 /* XXX: check this */
1468 switch (env->error_code & ~0xF) {
1469 case POWERPC_EXCP_FP:
1470 EXCP_DUMP(env, "Floating point program exception\n");
1471 info.si_signo = TARGET_SIGFPE;
1473 switch (env->error_code & 0xF) {
1474 case POWERPC_EXCP_FP_OX:
1475 info.si_code = TARGET_FPE_FLTOVF;
1477 case POWERPC_EXCP_FP_UX:
1478 info.si_code = TARGET_FPE_FLTUND;
1480 case POWERPC_EXCP_FP_ZX:
1481 case POWERPC_EXCP_FP_VXZDZ:
1482 info.si_code = TARGET_FPE_FLTDIV;
1484 case POWERPC_EXCP_FP_XX:
1485 info.si_code = TARGET_FPE_FLTRES;
1487 case POWERPC_EXCP_FP_VXSOFT:
1488 info.si_code = TARGET_FPE_FLTINV;
1490 case POWERPC_EXCP_FP_VXSNAN:
1491 case POWERPC_EXCP_FP_VXISI:
1492 case POWERPC_EXCP_FP_VXIDI:
1493 case POWERPC_EXCP_FP_VXIMZ:
1494 case POWERPC_EXCP_FP_VXVC:
1495 case POWERPC_EXCP_FP_VXSQRT:
1496 case POWERPC_EXCP_FP_VXCVI:
1497 info.si_code = TARGET_FPE_FLTSUB;
1500 EXCP_DUMP(env, "Unknown floating point exception (%02x)\n",
1505 case POWERPC_EXCP_INVAL:
1506 EXCP_DUMP(env, "Invalid instruction\n");
1507 info.si_signo = TARGET_SIGILL;
1509 switch (env->error_code & 0xF) {
1510 case POWERPC_EXCP_INVAL_INVAL:
1511 info.si_code = TARGET_ILL_ILLOPC;
1513 case POWERPC_EXCP_INVAL_LSWX:
1514 info.si_code = TARGET_ILL_ILLOPN;
1516 case POWERPC_EXCP_INVAL_SPR:
1517 info.si_code = TARGET_ILL_PRVREG;
1519 case POWERPC_EXCP_INVAL_FP:
1520 info.si_code = TARGET_ILL_COPROC;
1523 EXCP_DUMP(env, "Unknown invalid operation (%02x)\n",
1524 env->error_code & 0xF);
1525 info.si_code = TARGET_ILL_ILLADR;
1529 case POWERPC_EXCP_PRIV:
1530 EXCP_DUMP(env, "Privilege violation\n");
1531 info.si_signo = TARGET_SIGILL;
1533 switch (env->error_code & 0xF) {
1534 case POWERPC_EXCP_PRIV_OPC:
1535 info.si_code = TARGET_ILL_PRVOPC;
1537 case POWERPC_EXCP_PRIV_REG:
1538 info.si_code = TARGET_ILL_PRVREG;
1541 EXCP_DUMP(env, "Unknown privilege violation (%02x)\n",
1542 env->error_code & 0xF);
1543 info.si_code = TARGET_ILL_PRVOPC;
1547 case POWERPC_EXCP_TRAP:
1548 cpu_abort(env, "Tried to call a TRAP\n");
1551 /* Should not happen ! */
1552 cpu_abort(env, "Unknown program exception (%02x)\n",
1556 info._sifields._sigfault._addr = env->nip - 4;
1557 queue_signal(env, info.si_signo, &info);
1559 case POWERPC_EXCP_FPU: /* Floating-point unavailable exception */
1560 EXCP_DUMP(env, "No floating point allowed\n");
1561 info.si_signo = TARGET_SIGILL;
1563 info.si_code = TARGET_ILL_COPROC;
1564 info._sifields._sigfault._addr = env->nip - 4;
1565 queue_signal(env, info.si_signo, &info);
1567 case POWERPC_EXCP_SYSCALL: /* System call exception */
1568 cpu_abort(env, "Syscall exception while in user mode. "
1571 case POWERPC_EXCP_APU: /* Auxiliary processor unavailable */
1572 EXCP_DUMP(env, "No APU instruction allowed\n");
1573 info.si_signo = TARGET_SIGILL;
1575 info.si_code = TARGET_ILL_COPROC;
1576 info._sifields._sigfault._addr = env->nip - 4;
1577 queue_signal(env, info.si_signo, &info);
1579 case POWERPC_EXCP_DECR: /* Decrementer exception */
1580 cpu_abort(env, "Decrementer interrupt while in user mode. "
1583 case POWERPC_EXCP_FIT: /* Fixed-interval timer interrupt */
1584 cpu_abort(env, "Fix interval timer interrupt while in user mode. "
1587 case POWERPC_EXCP_WDT: /* Watchdog timer interrupt */
1588 cpu_abort(env, "Watchdog timer interrupt while in user mode. "
1591 case POWERPC_EXCP_DTLB: /* Data TLB error */
1592 cpu_abort(env, "Data TLB exception while in user mode. "
1595 case POWERPC_EXCP_ITLB: /* Instruction TLB error */
1596 cpu_abort(env, "Instruction TLB exception while in user mode. "
1599 case POWERPC_EXCP_SPEU: /* SPE/embedded floating-point unavail. */
1600 EXCP_DUMP(env, "No SPE/floating-point instruction allowed\n");
1601 info.si_signo = TARGET_SIGILL;
1603 info.si_code = TARGET_ILL_COPROC;
1604 info._sifields._sigfault._addr = env->nip - 4;
1605 queue_signal(env, info.si_signo, &info);
1607 case POWERPC_EXCP_EFPDI: /* Embedded floating-point data IRQ */
1608 cpu_abort(env, "Embedded floating-point data IRQ not handled\n");
1610 case POWERPC_EXCP_EFPRI: /* Embedded floating-point round IRQ */
1611 cpu_abort(env, "Embedded floating-point round IRQ not handled\n");
1613 case POWERPC_EXCP_EPERFM: /* Embedded performance monitor IRQ */
1614 cpu_abort(env, "Performance monitor exception not handled\n");
1616 case POWERPC_EXCP_DOORI: /* Embedded doorbell interrupt */
1617 cpu_abort(env, "Doorbell interrupt while in user mode. "
1620 case POWERPC_EXCP_DOORCI: /* Embedded doorbell critical interrupt */
1621 cpu_abort(env, "Doorbell critical interrupt while in user mode. "
1624 case POWERPC_EXCP_RESET: /* System reset exception */
1625 cpu_abort(env, "Reset interrupt while in user mode. "
1628 case POWERPC_EXCP_DSEG: /* Data segment exception */
1629 cpu_abort(env, "Data segment exception while in user mode. "
1632 case POWERPC_EXCP_ISEG: /* Instruction segment exception */
1633 cpu_abort(env, "Instruction segment exception "
1634 "while in user mode. Aborting\n");
1636 /* PowerPC 64 with hypervisor mode support */
1637 case POWERPC_EXCP_HDECR: /* Hypervisor decrementer exception */
1638 cpu_abort(env, "Hypervisor decrementer interrupt "
1639 "while in user mode. Aborting\n");
1641 case POWERPC_EXCP_TRACE: /* Trace exception */
1643 * we use this exception to emulate step-by-step execution mode.
1646 /* PowerPC 64 with hypervisor mode support */
1647 case POWERPC_EXCP_HDSI: /* Hypervisor data storage exception */
1648 cpu_abort(env, "Hypervisor data storage exception "
1649 "while in user mode. Aborting\n");
1651 case POWERPC_EXCP_HISI: /* Hypervisor instruction storage excp */
1652 cpu_abort(env, "Hypervisor instruction storage exception "
1653 "while in user mode. Aborting\n");
1655 case POWERPC_EXCP_HDSEG: /* Hypervisor data segment exception */
1656 cpu_abort(env, "Hypervisor data segment exception "
1657 "while in user mode. Aborting\n");
1659 case POWERPC_EXCP_HISEG: /* Hypervisor instruction segment excp */
1660 cpu_abort(env, "Hypervisor instruction segment exception "
1661 "while in user mode. Aborting\n");
1663 case POWERPC_EXCP_VPU: /* Vector unavailable exception */
1664 EXCP_DUMP(env, "No Altivec instructions allowed\n");
1665 info.si_signo = TARGET_SIGILL;
1667 info.si_code = TARGET_ILL_COPROC;
1668 info._sifields._sigfault._addr = env->nip - 4;
1669 queue_signal(env, info.si_signo, &info);
1671 case POWERPC_EXCP_PIT: /* Programmable interval timer IRQ */
1672 cpu_abort(env, "Programmable interval timer interrupt "
1673 "while in user mode. Aborting\n");
1675 case POWERPC_EXCP_IO: /* IO error exception */
1676 cpu_abort(env, "IO error exception while in user mode. "
1679 case POWERPC_EXCP_RUNM: /* Run mode exception */
1680 cpu_abort(env, "Run mode exception while in user mode. "
1683 case POWERPC_EXCP_EMUL: /* Emulation trap exception */
1684 cpu_abort(env, "Emulation trap exception not handled\n");
1686 case POWERPC_EXCP_IFTLB: /* Instruction fetch TLB error */
1687 cpu_abort(env, "Instruction fetch TLB exception "
1688 "while in user-mode. Aborting");
1690 case POWERPC_EXCP_DLTLB: /* Data load TLB miss */
1691 cpu_abort(env, "Data load TLB exception while in user-mode. "
1694 case POWERPC_EXCP_DSTLB: /* Data store TLB miss */
1695 cpu_abort(env, "Data store TLB exception while in user-mode. "
1698 case POWERPC_EXCP_FPA: /* Floating-point assist exception */
1699 cpu_abort(env, "Floating-point assist exception not handled\n");
1701 case POWERPC_EXCP_IABR: /* Instruction address breakpoint */
1702 cpu_abort(env, "Instruction address breakpoint exception "
1705 case POWERPC_EXCP_SMI: /* System management interrupt */
1706 cpu_abort(env, "System management interrupt while in user mode. "
1709 case POWERPC_EXCP_THERM: /* Thermal interrupt */
1710 cpu_abort(env, "Thermal interrupt interrupt while in user mode. "
1713 case POWERPC_EXCP_PERFM: /* Embedded performance monitor IRQ */
1714 cpu_abort(env, "Performance monitor exception not handled\n");
1716 case POWERPC_EXCP_VPUA: /* Vector assist exception */
1717 cpu_abort(env, "Vector assist exception not handled\n");
1719 case POWERPC_EXCP_SOFTP: /* Soft patch exception */
1720 cpu_abort(env, "Soft patch exception not handled\n");
1722 case POWERPC_EXCP_MAINT: /* Maintenance exception */
1723 cpu_abort(env, "Maintenance exception while in user mode. "
1726 case POWERPC_EXCP_STOP: /* stop translation */
1727 /* We did invalidate the instruction cache. Go on */
1729 case POWERPC_EXCP_BRANCH: /* branch instruction: */
1730 /* We just stopped because of a branch. Go on */
1732 case POWERPC_EXCP_SYSCALL_USER:
1733 /* system call in user-mode emulation */
1735 * PPC ABI uses overflow flag in cr0 to signal an error
1738 env->crf[0] &= ~0x1;
1739 ret = do_syscall(env, env->gpr[0], env->gpr[3], env->gpr[4],
1740 env->gpr[5], env->gpr[6], env->gpr[7],
1742 if (ret == (target_ulong)(-TARGET_QEMU_ESIGRETURN)) {
1743 /* Returning from a successful sigreturn syscall.
1744 Avoid corrupting register state. */
1747 if (ret > (target_ulong)(-515)) {
1753 case POWERPC_EXCP_STCX:
1754 if (do_store_exclusive(env)) {
1755 info.si_signo = TARGET_SIGSEGV;
1757 info.si_code = TARGET_SEGV_MAPERR;
1758 info._sifields._sigfault._addr = env->nip;
1759 queue_signal(env, info.si_signo, &info);
1766 sig = gdb_handlesig(env, TARGET_SIGTRAP);
1768 info.si_signo = sig;
1770 info.si_code = TARGET_TRAP_BRKPT;
1771 queue_signal(env, info.si_signo, &info);
1775 case EXCP_INTERRUPT:
1776 /* just indicate that signals should be handled asap */
1779 cpu_abort(env, "Unknown exception 0x%d. Aborting\n", trapnr);
1782 process_pending_signals(env);
1789 #define MIPS_SYS(name, args) args,
1791 static const uint8_t mips_syscall_args[] = {
1792 MIPS_SYS(sys_syscall , 8) /* 4000 */
1793 MIPS_SYS(sys_exit , 1)
1794 MIPS_SYS(sys_fork , 0)
1795 MIPS_SYS(sys_read , 3)
1796 MIPS_SYS(sys_write , 3)
1797 MIPS_SYS(sys_open , 3) /* 4005 */
1798 MIPS_SYS(sys_close , 1)
1799 MIPS_SYS(sys_waitpid , 3)
1800 MIPS_SYS(sys_creat , 2)
1801 MIPS_SYS(sys_link , 2)
1802 MIPS_SYS(sys_unlink , 1) /* 4010 */
1803 MIPS_SYS(sys_execve , 0)
1804 MIPS_SYS(sys_chdir , 1)
1805 MIPS_SYS(sys_time , 1)
1806 MIPS_SYS(sys_mknod , 3)
1807 MIPS_SYS(sys_chmod , 2) /* 4015 */
1808 MIPS_SYS(sys_lchown , 3)
1809 MIPS_SYS(sys_ni_syscall , 0)
1810 MIPS_SYS(sys_ni_syscall , 0) /* was sys_stat */
1811 MIPS_SYS(sys_lseek , 3)
1812 MIPS_SYS(sys_getpid , 0) /* 4020 */
1813 MIPS_SYS(sys_mount , 5)
1814 MIPS_SYS(sys_oldumount , 1)
1815 MIPS_SYS(sys_setuid , 1)
1816 MIPS_SYS(sys_getuid , 0)
1817 MIPS_SYS(sys_stime , 1) /* 4025 */
1818 MIPS_SYS(sys_ptrace , 4)
1819 MIPS_SYS(sys_alarm , 1)
1820 MIPS_SYS(sys_ni_syscall , 0) /* was sys_fstat */
1821 MIPS_SYS(sys_pause , 0)
1822 MIPS_SYS(sys_utime , 2) /* 4030 */
1823 MIPS_SYS(sys_ni_syscall , 0)
1824 MIPS_SYS(sys_ni_syscall , 0)
1825 MIPS_SYS(sys_access , 2)
1826 MIPS_SYS(sys_nice , 1)
1827 MIPS_SYS(sys_ni_syscall , 0) /* 4035 */
1828 MIPS_SYS(sys_sync , 0)
1829 MIPS_SYS(sys_kill , 2)
1830 MIPS_SYS(sys_rename , 2)
1831 MIPS_SYS(sys_mkdir , 2)
1832 MIPS_SYS(sys_rmdir , 1) /* 4040 */
1833 MIPS_SYS(sys_dup , 1)
1834 MIPS_SYS(sys_pipe , 0)
1835 MIPS_SYS(sys_times , 1)
1836 MIPS_SYS(sys_ni_syscall , 0)
1837 MIPS_SYS(sys_brk , 1) /* 4045 */
1838 MIPS_SYS(sys_setgid , 1)
1839 MIPS_SYS(sys_getgid , 0)
1840 MIPS_SYS(sys_ni_syscall , 0) /* was signal(2) */
1841 MIPS_SYS(sys_geteuid , 0)
1842 MIPS_SYS(sys_getegid , 0) /* 4050 */
1843 MIPS_SYS(sys_acct , 0)
1844 MIPS_SYS(sys_umount , 2)
1845 MIPS_SYS(sys_ni_syscall , 0)
1846 MIPS_SYS(sys_ioctl , 3)
1847 MIPS_SYS(sys_fcntl , 3) /* 4055 */
1848 MIPS_SYS(sys_ni_syscall , 2)
1849 MIPS_SYS(sys_setpgid , 2)
1850 MIPS_SYS(sys_ni_syscall , 0)
1851 MIPS_SYS(sys_olduname , 1)
1852 MIPS_SYS(sys_umask , 1) /* 4060 */
1853 MIPS_SYS(sys_chroot , 1)
1854 MIPS_SYS(sys_ustat , 2)
1855 MIPS_SYS(sys_dup2 , 2)
1856 MIPS_SYS(sys_getppid , 0)
1857 MIPS_SYS(sys_getpgrp , 0) /* 4065 */
1858 MIPS_SYS(sys_setsid , 0)
1859 MIPS_SYS(sys_sigaction , 3)
1860 MIPS_SYS(sys_sgetmask , 0)
1861 MIPS_SYS(sys_ssetmask , 1)
1862 MIPS_SYS(sys_setreuid , 2) /* 4070 */
1863 MIPS_SYS(sys_setregid , 2)
1864 MIPS_SYS(sys_sigsuspend , 0)
1865 MIPS_SYS(sys_sigpending , 1)
1866 MIPS_SYS(sys_sethostname , 2)
1867 MIPS_SYS(sys_setrlimit , 2) /* 4075 */
1868 MIPS_SYS(sys_getrlimit , 2)
1869 MIPS_SYS(sys_getrusage , 2)
1870 MIPS_SYS(sys_gettimeofday, 2)
1871 MIPS_SYS(sys_settimeofday, 2)
1872 MIPS_SYS(sys_getgroups , 2) /* 4080 */
1873 MIPS_SYS(sys_setgroups , 2)
1874 MIPS_SYS(sys_ni_syscall , 0) /* old_select */
1875 MIPS_SYS(sys_symlink , 2)
1876 MIPS_SYS(sys_ni_syscall , 0) /* was sys_lstat */
1877 MIPS_SYS(sys_readlink , 3) /* 4085 */
1878 MIPS_SYS(sys_uselib , 1)
1879 MIPS_SYS(sys_swapon , 2)
1880 MIPS_SYS(sys_reboot , 3)
1881 MIPS_SYS(old_readdir , 3)
1882 MIPS_SYS(old_mmap , 6) /* 4090 */
1883 MIPS_SYS(sys_munmap , 2)
1884 MIPS_SYS(sys_truncate , 2)
1885 MIPS_SYS(sys_ftruncate , 2)
1886 MIPS_SYS(sys_fchmod , 2)
1887 MIPS_SYS(sys_fchown , 3) /* 4095 */
1888 MIPS_SYS(sys_getpriority , 2)
1889 MIPS_SYS(sys_setpriority , 3)
1890 MIPS_SYS(sys_ni_syscall , 0)
1891 MIPS_SYS(sys_statfs , 2)
1892 MIPS_SYS(sys_fstatfs , 2) /* 4100 */
1893 MIPS_SYS(sys_ni_syscall , 0) /* was ioperm(2) */
1894 MIPS_SYS(sys_socketcall , 2)
1895 MIPS_SYS(sys_syslog , 3)
1896 MIPS_SYS(sys_setitimer , 3)
1897 MIPS_SYS(sys_getitimer , 2) /* 4105 */
1898 MIPS_SYS(sys_newstat , 2)
1899 MIPS_SYS(sys_newlstat , 2)
1900 MIPS_SYS(sys_newfstat , 2)
1901 MIPS_SYS(sys_uname , 1)
1902 MIPS_SYS(sys_ni_syscall , 0) /* 4110 was iopl(2) */
1903 MIPS_SYS(sys_vhangup , 0)
1904 MIPS_SYS(sys_ni_syscall , 0) /* was sys_idle() */
1905 MIPS_SYS(sys_ni_syscall , 0) /* was sys_vm86 */
1906 MIPS_SYS(sys_wait4 , 4)
1907 MIPS_SYS(sys_swapoff , 1) /* 4115 */
1908 MIPS_SYS(sys_sysinfo , 1)
1909 MIPS_SYS(sys_ipc , 6)
1910 MIPS_SYS(sys_fsync , 1)
1911 MIPS_SYS(sys_sigreturn , 0)
1912 MIPS_SYS(sys_clone , 6) /* 4120 */
1913 MIPS_SYS(sys_setdomainname, 2)
1914 MIPS_SYS(sys_newuname , 1)
1915 MIPS_SYS(sys_ni_syscall , 0) /* sys_modify_ldt */
1916 MIPS_SYS(sys_adjtimex , 1)
1917 MIPS_SYS(sys_mprotect , 3) /* 4125 */
1918 MIPS_SYS(sys_sigprocmask , 3)
1919 MIPS_SYS(sys_ni_syscall , 0) /* was create_module */
1920 MIPS_SYS(sys_init_module , 5)
1921 MIPS_SYS(sys_delete_module, 1)
1922 MIPS_SYS(sys_ni_syscall , 0) /* 4130 was get_kernel_syms */
1923 MIPS_SYS(sys_quotactl , 0)
1924 MIPS_SYS(sys_getpgid , 1)
1925 MIPS_SYS(sys_fchdir , 1)
1926 MIPS_SYS(sys_bdflush , 2)
1927 MIPS_SYS(sys_sysfs , 3) /* 4135 */
1928 MIPS_SYS(sys_personality , 1)
1929 MIPS_SYS(sys_ni_syscall , 0) /* for afs_syscall */
1930 MIPS_SYS(sys_setfsuid , 1)
1931 MIPS_SYS(sys_setfsgid , 1)
1932 MIPS_SYS(sys_llseek , 5) /* 4140 */
1933 MIPS_SYS(sys_getdents , 3)
1934 MIPS_SYS(sys_select , 5)
1935 MIPS_SYS(sys_flock , 2)
1936 MIPS_SYS(sys_msync , 3)
1937 MIPS_SYS(sys_readv , 3) /* 4145 */
1938 MIPS_SYS(sys_writev , 3)
1939 MIPS_SYS(sys_cacheflush , 3)
1940 MIPS_SYS(sys_cachectl , 3)
1941 MIPS_SYS(sys_sysmips , 4)
1942 MIPS_SYS(sys_ni_syscall , 0) /* 4150 */
1943 MIPS_SYS(sys_getsid , 1)
1944 MIPS_SYS(sys_fdatasync , 0)
1945 MIPS_SYS(sys_sysctl , 1)
1946 MIPS_SYS(sys_mlock , 2)
1947 MIPS_SYS(sys_munlock , 2) /* 4155 */
1948 MIPS_SYS(sys_mlockall , 1)
1949 MIPS_SYS(sys_munlockall , 0)
1950 MIPS_SYS(sys_sched_setparam, 2)
1951 MIPS_SYS(sys_sched_getparam, 2)
1952 MIPS_SYS(sys_sched_setscheduler, 3) /* 4160 */
1953 MIPS_SYS(sys_sched_getscheduler, 1)
1954 MIPS_SYS(sys_sched_yield , 0)
1955 MIPS_SYS(sys_sched_get_priority_max, 1)
1956 MIPS_SYS(sys_sched_get_priority_min, 1)
1957 MIPS_SYS(sys_sched_rr_get_interval, 2) /* 4165 */
1958 MIPS_SYS(sys_nanosleep, 2)
1959 MIPS_SYS(sys_mremap , 4)
1960 MIPS_SYS(sys_accept , 3)
1961 MIPS_SYS(sys_bind , 3)
1962 MIPS_SYS(sys_connect , 3) /* 4170 */
1963 MIPS_SYS(sys_getpeername , 3)
1964 MIPS_SYS(sys_getsockname , 3)
1965 MIPS_SYS(sys_getsockopt , 5)
1966 MIPS_SYS(sys_listen , 2)
1967 MIPS_SYS(sys_recv , 4) /* 4175 */
1968 MIPS_SYS(sys_recvfrom , 6)
1969 MIPS_SYS(sys_recvmsg , 3)
1970 MIPS_SYS(sys_send , 4)
1971 MIPS_SYS(sys_sendmsg , 3)
1972 MIPS_SYS(sys_sendto , 6) /* 4180 */
1973 MIPS_SYS(sys_setsockopt , 5)
1974 MIPS_SYS(sys_shutdown , 2)
1975 MIPS_SYS(sys_socket , 3)
1976 MIPS_SYS(sys_socketpair , 4)
1977 MIPS_SYS(sys_setresuid , 3) /* 4185 */
1978 MIPS_SYS(sys_getresuid , 3)
1979 MIPS_SYS(sys_ni_syscall , 0) /* was sys_query_module */
1980 MIPS_SYS(sys_poll , 3)
1981 MIPS_SYS(sys_nfsservctl , 3)
1982 MIPS_SYS(sys_setresgid , 3) /* 4190 */
1983 MIPS_SYS(sys_getresgid , 3)
1984 MIPS_SYS(sys_prctl , 5)
1985 MIPS_SYS(sys_rt_sigreturn, 0)
1986 MIPS_SYS(sys_rt_sigaction, 4)
1987 MIPS_SYS(sys_rt_sigprocmask, 4) /* 4195 */
1988 MIPS_SYS(sys_rt_sigpending, 2)
1989 MIPS_SYS(sys_rt_sigtimedwait, 4)
1990 MIPS_SYS(sys_rt_sigqueueinfo, 3)
1991 MIPS_SYS(sys_rt_sigsuspend, 0)
1992 MIPS_SYS(sys_pread64 , 6) /* 4200 */
1993 MIPS_SYS(sys_pwrite64 , 6)
1994 MIPS_SYS(sys_chown , 3)
1995 MIPS_SYS(sys_getcwd , 2)
1996 MIPS_SYS(sys_capget , 2)
1997 MIPS_SYS(sys_capset , 2) /* 4205 */
1998 MIPS_SYS(sys_sigaltstack , 2)
1999 MIPS_SYS(sys_sendfile , 4)
2000 MIPS_SYS(sys_ni_syscall , 0)
2001 MIPS_SYS(sys_ni_syscall , 0)
2002 MIPS_SYS(sys_mmap2 , 6) /* 4210 */
2003 MIPS_SYS(sys_truncate64 , 4)
2004 MIPS_SYS(sys_ftruncate64 , 4)
2005 MIPS_SYS(sys_stat64 , 2)
2006 MIPS_SYS(sys_lstat64 , 2)
2007 MIPS_SYS(sys_fstat64 , 2) /* 4215 */
2008 MIPS_SYS(sys_pivot_root , 2)
2009 MIPS_SYS(sys_mincore , 3)
2010 MIPS_SYS(sys_madvise , 3)
2011 MIPS_SYS(sys_getdents64 , 3)
2012 MIPS_SYS(sys_fcntl64 , 3) /* 4220 */
2013 MIPS_SYS(sys_ni_syscall , 0)
2014 MIPS_SYS(sys_gettid , 0)
2015 MIPS_SYS(sys_readahead , 5)
2016 MIPS_SYS(sys_setxattr , 5)
2017 MIPS_SYS(sys_lsetxattr , 5) /* 4225 */
2018 MIPS_SYS(sys_fsetxattr , 5)
2019 MIPS_SYS(sys_getxattr , 4)
2020 MIPS_SYS(sys_lgetxattr , 4)
2021 MIPS_SYS(sys_fgetxattr , 4)
2022 MIPS_SYS(sys_listxattr , 3) /* 4230 */
2023 MIPS_SYS(sys_llistxattr , 3)
2024 MIPS_SYS(sys_flistxattr , 3)
2025 MIPS_SYS(sys_removexattr , 2)
2026 MIPS_SYS(sys_lremovexattr, 2)
2027 MIPS_SYS(sys_fremovexattr, 2) /* 4235 */
2028 MIPS_SYS(sys_tkill , 2)
2029 MIPS_SYS(sys_sendfile64 , 5)
2030 MIPS_SYS(sys_futex , 2)
2031 MIPS_SYS(sys_sched_setaffinity, 3)
2032 MIPS_SYS(sys_sched_getaffinity, 3) /* 4240 */
2033 MIPS_SYS(sys_io_setup , 2)
2034 MIPS_SYS(sys_io_destroy , 1)
2035 MIPS_SYS(sys_io_getevents, 5)
2036 MIPS_SYS(sys_io_submit , 3)
2037 MIPS_SYS(sys_io_cancel , 3) /* 4245 */
2038 MIPS_SYS(sys_exit_group , 1)
2039 MIPS_SYS(sys_lookup_dcookie, 3)
2040 MIPS_SYS(sys_epoll_create, 1)
2041 MIPS_SYS(sys_epoll_ctl , 4)
2042 MIPS_SYS(sys_epoll_wait , 3) /* 4250 */
2043 MIPS_SYS(sys_remap_file_pages, 5)
2044 MIPS_SYS(sys_set_tid_address, 1)
2045 MIPS_SYS(sys_restart_syscall, 0)
2046 MIPS_SYS(sys_fadvise64_64, 7)
2047 MIPS_SYS(sys_statfs64 , 3) /* 4255 */
2048 MIPS_SYS(sys_fstatfs64 , 2)
2049 MIPS_SYS(sys_timer_create, 3)
2050 MIPS_SYS(sys_timer_settime, 4)
2051 MIPS_SYS(sys_timer_gettime, 2)
2052 MIPS_SYS(sys_timer_getoverrun, 1) /* 4260 */
2053 MIPS_SYS(sys_timer_delete, 1)
2054 MIPS_SYS(sys_clock_settime, 2)
2055 MIPS_SYS(sys_clock_gettime, 2)
2056 MIPS_SYS(sys_clock_getres, 2)
2057 MIPS_SYS(sys_clock_nanosleep, 4) /* 4265 */
2058 MIPS_SYS(sys_tgkill , 3)
2059 MIPS_SYS(sys_utimes , 2)
2060 MIPS_SYS(sys_mbind , 4)
2061 MIPS_SYS(sys_ni_syscall , 0) /* sys_get_mempolicy */
2062 MIPS_SYS(sys_ni_syscall , 0) /* 4270 sys_set_mempolicy */
2063 MIPS_SYS(sys_mq_open , 4)
2064 MIPS_SYS(sys_mq_unlink , 1)
2065 MIPS_SYS(sys_mq_timedsend, 5)
2066 MIPS_SYS(sys_mq_timedreceive, 5)
2067 MIPS_SYS(sys_mq_notify , 2) /* 4275 */
2068 MIPS_SYS(sys_mq_getsetattr, 3)
2069 MIPS_SYS(sys_ni_syscall , 0) /* sys_vserver */
2070 MIPS_SYS(sys_waitid , 4)
2071 MIPS_SYS(sys_ni_syscall , 0) /* available, was setaltroot */
2072 MIPS_SYS(sys_add_key , 5)
2073 MIPS_SYS(sys_request_key, 4)
2074 MIPS_SYS(sys_keyctl , 5)
2075 MIPS_SYS(sys_set_thread_area, 1)
2076 MIPS_SYS(sys_inotify_init, 0)
2077 MIPS_SYS(sys_inotify_add_watch, 3) /* 4285 */
2078 MIPS_SYS(sys_inotify_rm_watch, 2)
2079 MIPS_SYS(sys_migrate_pages, 4)
2080 MIPS_SYS(sys_openat, 4)
2081 MIPS_SYS(sys_mkdirat, 3)
2082 MIPS_SYS(sys_mknodat, 4) /* 4290 */
2083 MIPS_SYS(sys_fchownat, 5)
2084 MIPS_SYS(sys_futimesat, 3)
2085 MIPS_SYS(sys_fstatat64, 4)
2086 MIPS_SYS(sys_unlinkat, 3)
2087 MIPS_SYS(sys_renameat, 4) /* 4295 */
2088 MIPS_SYS(sys_linkat, 5)
2089 MIPS_SYS(sys_symlinkat, 3)
2090 MIPS_SYS(sys_readlinkat, 4)
2091 MIPS_SYS(sys_fchmodat, 3)
2092 MIPS_SYS(sys_faccessat, 3) /* 4300 */
2093 MIPS_SYS(sys_pselect6, 6)
2094 MIPS_SYS(sys_ppoll, 5)
2095 MIPS_SYS(sys_unshare, 1)
2096 MIPS_SYS(sys_splice, 4)
2097 MIPS_SYS(sys_sync_file_range, 7) /* 4305 */
2098 MIPS_SYS(sys_tee, 4)
2099 MIPS_SYS(sys_vmsplice, 4)
2100 MIPS_SYS(sys_move_pages, 6)
2101 MIPS_SYS(sys_set_robust_list, 2)
2102 MIPS_SYS(sys_get_robust_list, 3) /* 4310 */
2103 MIPS_SYS(sys_kexec_load, 4)
2104 MIPS_SYS(sys_getcpu, 3)
2105 MIPS_SYS(sys_epoll_pwait, 6)
2106 MIPS_SYS(sys_ioprio_set, 3)
2107 MIPS_SYS(sys_ioprio_get, 2)
2108 MIPS_SYS(sys_utimensat, 4)
2109 MIPS_SYS(sys_signalfd, 3)
2110 MIPS_SYS(sys_ni_syscall, 0) /* was timerfd */
2111 MIPS_SYS(sys_eventfd, 1)
2112 MIPS_SYS(sys_fallocate, 6) /* 4320 */
2113 MIPS_SYS(sys_timerfd_create, 2)
2114 MIPS_SYS(sys_timerfd_gettime, 2)
2115 MIPS_SYS(sys_timerfd_settime, 4)
2116 MIPS_SYS(sys_signalfd4, 4)
2117 MIPS_SYS(sys_eventfd2, 2) /* 4325 */
2118 MIPS_SYS(sys_epoll_create1, 1)
2119 MIPS_SYS(sys_dup3, 3)
2120 MIPS_SYS(sys_pipe2, 2)
2121 MIPS_SYS(sys_inotify_init1, 1)
2122 MIPS_SYS(sys_preadv, 6) /* 4330 */
2123 MIPS_SYS(sys_pwritev, 6)
2124 MIPS_SYS(sys_rt_tgsigqueueinfo, 4)
2125 MIPS_SYS(sys_perf_event_open, 5)
2126 MIPS_SYS(sys_accept4, 4)
2127 MIPS_SYS(sys_recvmmsg, 5) /* 4335 */
2128 MIPS_SYS(sys_fanotify_init, 2)
2129 MIPS_SYS(sys_fanotify_mark, 6)
2130 MIPS_SYS(sys_prlimit64, 4)
2131 MIPS_SYS(sys_name_to_handle_at, 5)
2132 MIPS_SYS(sys_open_by_handle_at, 3) /* 4340 */
2133 MIPS_SYS(sys_clock_adjtime, 2)
2134 MIPS_SYS(sys_syncfs, 1)
2139 static int do_store_exclusive(CPUMIPSState *env)
2142 target_ulong page_addr;
2150 page_addr = addr & TARGET_PAGE_MASK;
2153 flags = page_get_flags(page_addr);
2154 if ((flags & PAGE_READ) == 0) {
2157 reg = env->llreg & 0x1f;
2158 d = (env->llreg & 0x20) != 0;
2160 segv = get_user_s64(val, addr);
2162 segv = get_user_s32(val, addr);
2165 if (val != env->llval) {
2166 env->active_tc.gpr[reg] = 0;
2169 segv = put_user_u64(env->llnewval, addr);
2171 segv = put_user_u32(env->llnewval, addr);
2174 env->active_tc.gpr[reg] = 1;
2181 env->active_tc.PC += 4;
2188 void cpu_loop(CPUMIPSState *env)
2190 target_siginfo_t info;
2192 unsigned int syscall_num;
2195 cpu_exec_start(env);
2196 trapnr = cpu_mips_exec(env);
2200 syscall_num = env->active_tc.gpr[2] - 4000;
2201 env->active_tc.PC += 4;
2202 if (syscall_num >= sizeof(mips_syscall_args)) {
2203 ret = -TARGET_ENOSYS;
2207 abi_ulong arg5 = 0, arg6 = 0, arg7 = 0, arg8 = 0;
2209 nb_args = mips_syscall_args[syscall_num];
2210 sp_reg = env->active_tc.gpr[29];
2212 /* these arguments are taken from the stack */
2214 if ((ret = get_user_ual(arg8, sp_reg + 28)) != 0) {
2218 if ((ret = get_user_ual(arg7, sp_reg + 24)) != 0) {
2222 if ((ret = get_user_ual(arg6, sp_reg + 20)) != 0) {
2226 if ((ret = get_user_ual(arg5, sp_reg + 16)) != 0) {
2232 ret = do_syscall(env, env->active_tc.gpr[2],
2233 env->active_tc.gpr[4],
2234 env->active_tc.gpr[5],
2235 env->active_tc.gpr[6],
2236 env->active_tc.gpr[7],
2237 arg5, arg6, arg7, arg8);
2240 if (ret == -TARGET_QEMU_ESIGRETURN) {
2241 /* Returning from a successful sigreturn syscall.
2242 Avoid clobbering register state. */
2245 if ((unsigned int)ret >= (unsigned int)(-1133)) {
2246 env->active_tc.gpr[7] = 1; /* error flag */
2249 env->active_tc.gpr[7] = 0; /* error flag */
2251 env->active_tc.gpr[2] = ret;
2257 info.si_signo = TARGET_SIGSEGV;
2259 /* XXX: check env->error_code */
2260 info.si_code = TARGET_SEGV_MAPERR;
2261 info._sifields._sigfault._addr = env->CP0_BadVAddr;
2262 queue_signal(env, info.si_signo, &info);
2266 info.si_signo = TARGET_SIGILL;
2269 queue_signal(env, info.si_signo, &info);
2271 case EXCP_INTERRUPT:
2272 /* just indicate that signals should be handled asap */
2278 sig = gdb_handlesig (env, TARGET_SIGTRAP);
2281 info.si_signo = sig;
2283 info.si_code = TARGET_TRAP_BRKPT;
2284 queue_signal(env, info.si_signo, &info);
2289 if (do_store_exclusive(env)) {
2290 info.si_signo = TARGET_SIGSEGV;
2292 info.si_code = TARGET_SEGV_MAPERR;
2293 info._sifields._sigfault._addr = env->active_tc.PC;
2294 queue_signal(env, info.si_signo, &info);
2299 fprintf(stderr, "qemu: unhandled CPU exception 0x%x - aborting\n",
2301 cpu_dump_state(env, stderr, fprintf, 0);
2304 process_pending_signals(env);
2309 #ifdef TARGET_OPENRISC
2311 void cpu_loop(CPUOpenRISCState *env)
2316 trapnr = cpu_exec(env);
2321 qemu_log("\nReset request, exit, pc is %#x\n", env->pc);
2325 qemu_log("\nBus error, exit, pc is %#x\n", env->pc);
2330 cpu_dump_state(env, stderr, fprintf, 0);
2331 gdbsig = TARGET_SIGSEGV;
2334 qemu_log("\nTick time interrupt pc is %#x\n", env->pc);
2337 qemu_log("\nAlignment pc is %#x\n", env->pc);
2341 qemu_log("\nIllegal instructionpc is %#x\n", env->pc);
2345 qemu_log("\nExternal interruptpc is %#x\n", env->pc);
2349 qemu_log("\nTLB miss\n");
2352 qemu_log("\nRange\n");
2356 env->pc += 4; /* 0xc00; */
2357 env->gpr[11] = do_syscall(env,
2358 env->gpr[11], /* return value */
2359 env->gpr[3], /* r3 - r7 are params */
2367 qemu_log("\nFloating point error\n");
2370 qemu_log("\nTrap\n");
2377 qemu_log("\nqemu: unhandled CPU exception %#x - aborting\n",
2379 cpu_dump_state(env, stderr, fprintf, 0);
2380 gdbsig = TARGET_SIGILL;
2384 gdb_handlesig(env, gdbsig);
2385 if (gdbsig != TARGET_SIGTRAP) {
2390 process_pending_signals(env);
2394 #endif /* TARGET_OPENRISC */
2397 void cpu_loop(CPUSH4State *env)
2400 target_siginfo_t info;
2403 trapnr = cpu_sh4_exec (env);
2408 ret = do_syscall(env,
2417 env->gregs[0] = ret;
2419 case EXCP_INTERRUPT:
2420 /* just indicate that signals should be handled asap */
2426 sig = gdb_handlesig (env, TARGET_SIGTRAP);
2429 info.si_signo = sig;
2431 info.si_code = TARGET_TRAP_BRKPT;
2432 queue_signal(env, info.si_signo, &info);
2438 info.si_signo = SIGSEGV;
2440 info.si_code = TARGET_SEGV_MAPERR;
2441 info._sifields._sigfault._addr = env->tea;
2442 queue_signal(env, info.si_signo, &info);
2446 printf ("Unhandled trap: 0x%x\n", trapnr);
2447 cpu_dump_state(env, stderr, fprintf, 0);
2450 process_pending_signals (env);
2456 void cpu_loop(CPUCRISState *env)
2459 target_siginfo_t info;
2462 trapnr = cpu_cris_exec (env);
2466 info.si_signo = SIGSEGV;
2468 /* XXX: check env->error_code */
2469 info.si_code = TARGET_SEGV_MAPERR;
2470 info._sifields._sigfault._addr = env->pregs[PR_EDA];
2471 queue_signal(env, info.si_signo, &info);
2474 case EXCP_INTERRUPT:
2475 /* just indicate that signals should be handled asap */
2478 ret = do_syscall(env,
2487 env->regs[10] = ret;
2493 sig = gdb_handlesig (env, TARGET_SIGTRAP);
2496 info.si_signo = sig;
2498 info.si_code = TARGET_TRAP_BRKPT;
2499 queue_signal(env, info.si_signo, &info);
2504 printf ("Unhandled trap: 0x%x\n", trapnr);
2505 cpu_dump_state(env, stderr, fprintf, 0);
2508 process_pending_signals (env);
2513 #ifdef TARGET_MICROBLAZE
2514 void cpu_loop(CPUMBState *env)
2517 target_siginfo_t info;
2520 trapnr = cpu_mb_exec (env);
2524 info.si_signo = SIGSEGV;
2526 /* XXX: check env->error_code */
2527 info.si_code = TARGET_SEGV_MAPERR;
2528 info._sifields._sigfault._addr = 0;
2529 queue_signal(env, info.si_signo, &info);
2532 case EXCP_INTERRUPT:
2533 /* just indicate that signals should be handled asap */
2536 /* Return address is 4 bytes after the call. */
2538 ret = do_syscall(env,
2548 env->sregs[SR_PC] = env->regs[14];
2551 env->regs[17] = env->sregs[SR_PC] + 4;
2552 if (env->iflags & D_FLAG) {
2553 env->sregs[SR_ESR] |= 1 << 12;
2554 env->sregs[SR_PC] -= 4;
2555 /* FIXME: if branch was immed, replay the imm as well. */
2558 env->iflags &= ~(IMM_FLAG | D_FLAG);
2560 switch (env->sregs[SR_ESR] & 31) {
2561 case ESR_EC_DIVZERO:
2562 info.si_signo = SIGFPE;
2564 info.si_code = TARGET_FPE_FLTDIV;
2565 info._sifields._sigfault._addr = 0;
2566 queue_signal(env, info.si_signo, &info);
2569 info.si_signo = SIGFPE;
2571 if (env->sregs[SR_FSR] & FSR_IO) {
2572 info.si_code = TARGET_FPE_FLTINV;
2574 if (env->sregs[SR_FSR] & FSR_DZ) {
2575 info.si_code = TARGET_FPE_FLTDIV;
2577 info._sifields._sigfault._addr = 0;
2578 queue_signal(env, info.si_signo, &info);
2581 printf ("Unhandled hw-exception: 0x%x\n",
2582 env->sregs[SR_ESR] & ESR_EC_MASK);
2583 cpu_dump_state(env, stderr, fprintf, 0);
2592 sig = gdb_handlesig (env, TARGET_SIGTRAP);
2595 info.si_signo = sig;
2597 info.si_code = TARGET_TRAP_BRKPT;
2598 queue_signal(env, info.si_signo, &info);
2603 printf ("Unhandled trap: 0x%x\n", trapnr);
2604 cpu_dump_state(env, stderr, fprintf, 0);
2607 process_pending_signals (env);
2614 void cpu_loop(CPUM68KState *env)
2618 target_siginfo_t info;
2619 TaskState *ts = env->opaque;
2622 trapnr = cpu_m68k_exec(env);
2626 if (ts->sim_syscalls) {
2628 nr = lduw(env->pc + 2);
2630 do_m68k_simcall(env, nr);
2636 case EXCP_HALT_INSN:
2637 /* Semihosing syscall. */
2639 do_m68k_semihosting(env, env->dregs[0]);
2643 case EXCP_UNSUPPORTED:
2645 info.si_signo = SIGILL;
2647 info.si_code = TARGET_ILL_ILLOPN;
2648 info._sifields._sigfault._addr = env->pc;
2649 queue_signal(env, info.si_signo, &info);
2653 ts->sim_syscalls = 0;
2656 env->dregs[0] = do_syscall(env,
2667 case EXCP_INTERRUPT:
2668 /* just indicate that signals should be handled asap */
2672 info.si_signo = SIGSEGV;
2674 /* XXX: check env->error_code */
2675 info.si_code = TARGET_SEGV_MAPERR;
2676 info._sifields._sigfault._addr = env->mmu.ar;
2677 queue_signal(env, info.si_signo, &info);
2684 sig = gdb_handlesig (env, TARGET_SIGTRAP);
2687 info.si_signo = sig;
2689 info.si_code = TARGET_TRAP_BRKPT;
2690 queue_signal(env, info.si_signo, &info);
2695 fprintf(stderr, "qemu: unhandled CPU exception 0x%x - aborting\n",
2697 cpu_dump_state(env, stderr, fprintf, 0);
2700 process_pending_signals(env);
2703 #endif /* TARGET_M68K */
2706 static void do_store_exclusive(CPUAlphaState *env, int reg, int quad)
2708 target_ulong addr, val, tmp;
2709 target_siginfo_t info;
2712 addr = env->lock_addr;
2713 tmp = env->lock_st_addr;
2714 env->lock_addr = -1;
2715 env->lock_st_addr = 0;
2721 if (quad ? get_user_s64(val, addr) : get_user_s32(val, addr)) {
2725 if (val == env->lock_value) {
2727 if (quad ? put_user_u64(tmp, addr) : put_user_u32(tmp, addr)) {
2744 info.si_signo = TARGET_SIGSEGV;
2746 info.si_code = TARGET_SEGV_MAPERR;
2747 info._sifields._sigfault._addr = addr;
2748 queue_signal(env, TARGET_SIGSEGV, &info);
2751 void cpu_loop(CPUAlphaState *env)
2754 target_siginfo_t info;
2758 trapnr = cpu_alpha_exec (env);
2760 /* All of the traps imply a transition through PALcode, which
2761 implies an REI instruction has been executed. Which means
2762 that the intr_flag should be cleared. */
2767 fprintf(stderr, "Reset requested. Exit\n");
2771 fprintf(stderr, "Machine check exception. Exit\n");
2774 case EXCP_SMP_INTERRUPT:
2775 case EXCP_CLK_INTERRUPT:
2776 case EXCP_DEV_INTERRUPT:
2777 fprintf(stderr, "External interrupt. Exit\n");
2781 env->lock_addr = -1;
2782 info.si_signo = TARGET_SIGSEGV;
2784 info.si_code = (page_get_flags(env->trap_arg0) & PAGE_VALID
2785 ? TARGET_SEGV_ACCERR : TARGET_SEGV_MAPERR);
2786 info._sifields._sigfault._addr = env->trap_arg0;
2787 queue_signal(env, info.si_signo, &info);
2790 env->lock_addr = -1;
2791 info.si_signo = TARGET_SIGBUS;
2793 info.si_code = TARGET_BUS_ADRALN;
2794 info._sifields._sigfault._addr = env->trap_arg0;
2795 queue_signal(env, info.si_signo, &info);
2799 env->lock_addr = -1;
2800 info.si_signo = TARGET_SIGILL;
2802 info.si_code = TARGET_ILL_ILLOPC;
2803 info._sifields._sigfault._addr = env->pc;
2804 queue_signal(env, info.si_signo, &info);
2807 env->lock_addr = -1;
2808 info.si_signo = TARGET_SIGFPE;
2810 info.si_code = TARGET_FPE_FLTINV;
2811 info._sifields._sigfault._addr = env->pc;
2812 queue_signal(env, info.si_signo, &info);
2815 /* No-op. Linux simply re-enables the FPU. */
2818 env->lock_addr = -1;
2819 switch (env->error_code) {
2822 info.si_signo = TARGET_SIGTRAP;
2824 info.si_code = TARGET_TRAP_BRKPT;
2825 info._sifields._sigfault._addr = env->pc;
2826 queue_signal(env, info.si_signo, &info);
2830 info.si_signo = TARGET_SIGTRAP;
2833 info._sifields._sigfault._addr = env->pc;
2834 queue_signal(env, info.si_signo, &info);
2838 trapnr = env->ir[IR_V0];
2839 sysret = do_syscall(env, trapnr,
2840 env->ir[IR_A0], env->ir[IR_A1],
2841 env->ir[IR_A2], env->ir[IR_A3],
2842 env->ir[IR_A4], env->ir[IR_A5],
2844 if (trapnr == TARGET_NR_sigreturn
2845 || trapnr == TARGET_NR_rt_sigreturn) {
2848 /* Syscall writes 0 to V0 to bypass error check, similar
2849 to how this is handled internal to Linux kernel.
2850 (Ab)use trapnr temporarily as boolean indicating error. */
2851 trapnr = (env->ir[IR_V0] != 0 && sysret < 0);
2852 env->ir[IR_V0] = (trapnr ? -sysret : sysret);
2853 env->ir[IR_A3] = trapnr;
2857 /* ??? We can probably elide the code using page_unprotect
2858 that is checking for self-modifying code. Instead we
2859 could simply call tb_flush here. Until we work out the
2860 changes required to turn off the extra write protection,
2861 this can be a no-op. */
2865 /* Handled in the translator for usermode. */
2869 /* Handled in the translator for usermode. */
2873 info.si_signo = TARGET_SIGFPE;
2874 switch (env->ir[IR_A0]) {
2875 case TARGET_GEN_INTOVF:
2876 info.si_code = TARGET_FPE_INTOVF;
2878 case TARGET_GEN_INTDIV:
2879 info.si_code = TARGET_FPE_INTDIV;
2881 case TARGET_GEN_FLTOVF:
2882 info.si_code = TARGET_FPE_FLTOVF;
2884 case TARGET_GEN_FLTUND:
2885 info.si_code = TARGET_FPE_FLTUND;
2887 case TARGET_GEN_FLTINV:
2888 info.si_code = TARGET_FPE_FLTINV;
2890 case TARGET_GEN_FLTINE:
2891 info.si_code = TARGET_FPE_FLTRES;
2893 case TARGET_GEN_ROPRAND:
2897 info.si_signo = TARGET_SIGTRAP;
2902 info._sifields._sigfault._addr = env->pc;
2903 queue_signal(env, info.si_signo, &info);
2910 info.si_signo = gdb_handlesig (env, TARGET_SIGTRAP);
2911 if (info.si_signo) {
2912 env->lock_addr = -1;
2914 info.si_code = TARGET_TRAP_BRKPT;
2915 queue_signal(env, info.si_signo, &info);
2920 do_store_exclusive(env, env->error_code, trapnr - EXCP_STL_C);
2922 case EXCP_INTERRUPT:
2923 /* Just indicate that signals should be handled asap. */
2926 printf ("Unhandled trap: 0x%x\n", trapnr);
2927 cpu_dump_state(env, stderr, fprintf, 0);
2930 process_pending_signals (env);
2933 #endif /* TARGET_ALPHA */
2936 void cpu_loop(CPUS390XState *env)
2939 target_siginfo_t info;
2942 trapnr = cpu_s390x_exec (env);
2945 case EXCP_INTERRUPT:
2946 /* just indicate that signals should be handled asap */
2952 sig = gdb_handlesig (env, TARGET_SIGTRAP);
2954 info.si_signo = sig;
2956 info.si_code = TARGET_TRAP_BRKPT;
2957 queue_signal(env, info.si_signo, &info);
2963 int n = env->int_svc_code;
2965 /* syscalls > 255 */
2968 env->psw.addr += env->int_svc_ilc;
2969 env->regs[2] = do_syscall(env, n,
2981 info.si_signo = SIGSEGV;
2983 /* XXX: check env->error_code */
2984 info.si_code = TARGET_SEGV_MAPERR;
2985 info._sifields._sigfault._addr = env->__excp_addr;
2986 queue_signal(env, info.si_signo, &info);
2991 fprintf(stderr,"specification exception insn 0x%08x%04x\n", ldl(env->psw.addr), lduw(env->psw.addr + 4));
2992 info.si_signo = SIGILL;
2994 info.si_code = TARGET_ILL_ILLOPC;
2995 info._sifields._sigfault._addr = env->__excp_addr;
2996 queue_signal(env, info.si_signo, &info);
3000 printf ("Unhandled trap: 0x%x\n", trapnr);
3001 cpu_dump_state(env, stderr, fprintf, 0);
3004 process_pending_signals (env);
3008 #endif /* TARGET_S390X */
3010 THREAD CPUArchState *thread_env;
3012 void task_settid(TaskState *ts)
3014 if (ts->ts_tid == 0) {
3015 #ifdef CONFIG_USE_NPTL
3016 ts->ts_tid = (pid_t)syscall(SYS_gettid);
3018 /* when no threads are used, tid becomes pid */
3019 ts->ts_tid = getpid();
3024 void stop_all_tasks(void)
3027 * We trust that when using NPTL, start_exclusive()
3028 * handles thread stopping correctly.
3033 /* Assumes contents are already zeroed. */
3034 void init_task_state(TaskState *ts)
3039 ts->first_free = ts->sigqueue_table;
3040 for (i = 0; i < MAX_SIGQUEUE_SIZE - 1; i++) {
3041 ts->sigqueue_table[i].next = &ts->sigqueue_table[i + 1];
3043 ts->sigqueue_table[i].next = NULL;
3046 static void handle_arg_help(const char *arg)
3051 static void handle_arg_log(const char *arg)
3054 const CPULogItem *item;
3056 mask = cpu_str_to_log_mask(arg);
3058 printf("Log items (comma separated):\n");
3059 for (item = cpu_log_items; item->mask != 0; item++) {
3060 printf("%-10s %s\n", item->name, item->help);
3067 static void handle_arg_log_filename(const char *arg)
3069 cpu_set_log_filename(arg);
3072 static void handle_arg_set_env(const char *arg)
3074 char *r, *p, *token;
3075 r = p = strdup(arg);
3076 while ((token = strsep(&p, ",")) != NULL) {
3077 if (envlist_setenv(envlist, token) != 0) {
3084 static void handle_arg_unset_env(const char *arg)
3086 char *r, *p, *token;
3087 r = p = strdup(arg);
3088 while ((token = strsep(&p, ",")) != NULL) {
3089 if (envlist_unsetenv(envlist, token) != 0) {
3096 static void handle_arg_argv0(const char *arg)
3098 argv0 = strdup(arg);
3101 static void handle_arg_stack_size(const char *arg)
3104 guest_stack_size = strtoul(arg, &p, 0);
3105 if (guest_stack_size == 0) {
3110 guest_stack_size *= 1024 * 1024;
3111 } else if (*p == 'k' || *p == 'K') {
3112 guest_stack_size *= 1024;
3116 static void handle_arg_ld_prefix(const char *arg)
3118 interp_prefix = strdup(arg);
3121 static void handle_arg_pagesize(const char *arg)
3123 qemu_host_page_size = atoi(arg);
3124 if (qemu_host_page_size == 0 ||
3125 (qemu_host_page_size & (qemu_host_page_size - 1)) != 0) {
3126 fprintf(stderr, "page size must be a power of two\n");
3131 static void handle_arg_gdb(const char *arg)
3133 gdbstub_port = atoi(arg);
3136 static void handle_arg_uname(const char *arg)
3138 qemu_uname_release = strdup(arg);
3141 static void handle_arg_cpu(const char *arg)
3143 cpu_model = strdup(arg);
3144 if (cpu_model == NULL || is_help_option(cpu_model)) {
3145 /* XXX: implement xxx_cpu_list for targets that still miss it */
3146 #if defined(cpu_list_id)
3147 cpu_list_id(stdout, &fprintf, "");
3148 #elif defined(cpu_list)
3149 cpu_list(stdout, &fprintf); /* deprecated */
3155 #if defined(CONFIG_USE_GUEST_BASE)
3156 static void handle_arg_guest_base(const char *arg)
3158 guest_base = strtol(arg, NULL, 0);
3159 have_guest_base = 1;
3162 static void handle_arg_reserved_va(const char *arg)
3166 reserved_va = strtoul(arg, &p, 0);
3180 unsigned long unshifted = reserved_va;
3182 reserved_va <<= shift;
3183 if (((reserved_va >> shift) != unshifted)
3184 #if HOST_LONG_BITS > TARGET_VIRT_ADDR_SPACE_BITS
3185 || (reserved_va > (1ul << TARGET_VIRT_ADDR_SPACE_BITS))
3188 fprintf(stderr, "Reserved virtual address too big\n");
3193 fprintf(stderr, "Unrecognised -R size suffix '%s'\n", p);
3199 static void handle_arg_singlestep(const char *arg)
3204 static void handle_arg_strace(const char *arg)
3209 static void handle_arg_version(const char *arg)
3211 printf("qemu-" TARGET_ARCH " version " QEMU_VERSION QEMU_PKGVERSION
3212 ", Copyright (c) 2003-2008 Fabrice Bellard\n");
3216 struct qemu_argument {
3220 void (*handle_opt)(const char *arg);
3221 const char *example;
3225 struct qemu_argument arg_table[] = {
3226 {"h", "", false, handle_arg_help,
3227 "", "print this help"},
3228 {"g", "QEMU_GDB", true, handle_arg_gdb,
3229 "port", "wait gdb connection to 'port'"},
3230 {"L", "QEMU_LD_PREFIX", true, handle_arg_ld_prefix,
3231 "path", "set the elf interpreter prefix to 'path'"},
3232 {"s", "QEMU_STACK_SIZE", true, handle_arg_stack_size,
3233 "size", "set the stack size to 'size' bytes"},
3234 {"cpu", "QEMU_CPU", true, handle_arg_cpu,
3235 "model", "select CPU (-cpu help for list)"},
3236 {"E", "QEMU_SET_ENV", true, handle_arg_set_env,
3237 "var=value", "sets targets environment variable (see below)"},
3238 {"U", "QEMU_UNSET_ENV", true, handle_arg_unset_env,
3239 "var", "unsets targets environment variable (see below)"},
3240 {"0", "QEMU_ARGV0", true, handle_arg_argv0,
3241 "argv0", "forces target process argv[0] to be 'argv0'"},
3242 {"r", "QEMU_UNAME", true, handle_arg_uname,
3243 "uname", "set qemu uname release string to 'uname'"},
3244 #if defined(CONFIG_USE_GUEST_BASE)
3245 {"B", "QEMU_GUEST_BASE", true, handle_arg_guest_base,
3246 "address", "set guest_base address to 'address'"},
3247 {"R", "QEMU_RESERVED_VA", true, handle_arg_reserved_va,
3248 "size", "reserve 'size' bytes for guest virtual address space"},
3250 {"d", "QEMU_LOG", true, handle_arg_log,
3251 "options", "activate log"},
3252 {"D", "QEMU_LOG_FILENAME", true, handle_arg_log_filename,
3253 "logfile", "override default logfile location"},
3254 {"p", "QEMU_PAGESIZE", true, handle_arg_pagesize,
3255 "pagesize", "set the host page size to 'pagesize'"},
3256 {"singlestep", "QEMU_SINGLESTEP", false, handle_arg_singlestep,
3257 "", "run in singlestep mode"},
3258 {"strace", "QEMU_STRACE", false, handle_arg_strace,
3259 "", "log system calls"},
3260 {"version", "QEMU_VERSION", false, handle_arg_version,
3261 "", "display version information and exit"},
3262 {NULL, NULL, false, NULL, NULL, NULL}
3265 static void usage(void)
3267 struct qemu_argument *arginfo;
3271 printf("usage: qemu-" TARGET_ARCH " [options] program [arguments...]\n"
3272 "Linux CPU emulator (compiled for " TARGET_ARCH " emulation)\n"
3274 "Options and associated environment variables:\n"
3277 maxarglen = maxenvlen = 0;
3279 for (arginfo = arg_table; arginfo->handle_opt != NULL; arginfo++) {
3280 if (strlen(arginfo->env) > maxenvlen) {
3281 maxenvlen = strlen(arginfo->env);
3283 if (strlen(arginfo->argv) > maxarglen) {
3284 maxarglen = strlen(arginfo->argv);
3288 printf("%-*s%-*sDescription\n", maxarglen+3, "Argument",
3289 maxenvlen+1, "Env-variable");
3291 for (arginfo = arg_table; arginfo->handle_opt != NULL; arginfo++) {
3292 if (arginfo->has_arg) {
3293 printf("-%s %-*s %-*s %s\n", arginfo->argv,
3294 (int)(maxarglen-strlen(arginfo->argv)), arginfo->example,
3295 maxenvlen, arginfo->env, arginfo->help);
3297 printf("-%-*s %-*s %s\n", maxarglen+1, arginfo->argv,
3298 maxenvlen, arginfo->env,
3305 "QEMU_LD_PREFIX = %s\n"
3306 "QEMU_STACK_SIZE = %ld byte\n"
3313 "You can use -E and -U options or the QEMU_SET_ENV and\n"
3314 "QEMU_UNSET_ENV environment variables to set and unset\n"
3315 "environment variables for the target process.\n"
3316 "It is possible to provide several variables by separating them\n"
3317 "by commas in getsubopt(3) style. Additionally it is possible to\n"
3318 "provide the -E and -U options multiple times.\n"
3319 "The following lines are equivalent:\n"
3320 " -E var1=val2 -E var2=val2 -U LD_PRELOAD -U LD_DEBUG\n"
3321 " -E var1=val2,var2=val2 -U LD_PRELOAD,LD_DEBUG\n"
3322 " QEMU_SET_ENV=var1=val2,var2=val2 QEMU_UNSET_ENV=LD_PRELOAD,LD_DEBUG\n"
3323 "Note that if you provide several changes to a single variable\n"
3324 "the last change will stay in effect.\n");
3329 static int parse_args(int argc, char **argv)
3333 struct qemu_argument *arginfo;
3335 for (arginfo = arg_table; arginfo->handle_opt != NULL; arginfo++) {
3336 if (arginfo->env == NULL) {
3340 r = getenv(arginfo->env);
3342 arginfo->handle_opt(r);
3348 if (optind >= argc) {
3357 if (!strcmp(r, "-")) {
3361 for (arginfo = arg_table; arginfo->handle_opt != NULL; arginfo++) {
3362 if (!strcmp(r, arginfo->argv)) {
3363 if (arginfo->has_arg) {
3364 if (optind >= argc) {
3367 arginfo->handle_opt(argv[optind]);
3370 arginfo->handle_opt(NULL);
3376 /* no option matched the current argv */
3377 if (arginfo->handle_opt == NULL) {
3382 if (optind >= argc) {
3386 filename = argv[optind];
3387 exec_path = argv[optind];
3392 int main(int argc, char **argv, char **envp)
3394 const char *log_file = DEBUG_LOGFILE;
3395 struct target_pt_regs regs1, *regs = ®s1;
3396 struct image_info info1, *info = &info1;
3397 struct linux_binprm bprm;
3401 char **target_environ, **wrk;
3407 module_call_init(MODULE_INIT_QOM);
3409 qemu_cache_utils_init(envp);
3411 if ((envlist = envlist_create()) == NULL) {
3412 (void) fprintf(stderr, "Unable to allocate envlist\n");
3416 /* add current environment into the list */
3417 for (wrk = environ; *wrk != NULL; wrk++) {
3418 (void) envlist_setenv(envlist, *wrk);
3421 /* Read the stack limit from the kernel. If it's "unlimited",
3422 then we can do little else besides use the default. */
3425 if (getrlimit(RLIMIT_STACK, &lim) == 0
3426 && lim.rlim_cur != RLIM_INFINITY
3427 && lim.rlim_cur == (target_long)lim.rlim_cur) {
3428 guest_stack_size = lim.rlim_cur;
3433 #if defined(cpudef_setup)
3434 cpudef_setup(); /* parse cpu definitions in target config file (TBD) */
3438 cpu_set_log_filename(log_file);
3439 optind = parse_args(argc, argv);
3442 memset(regs, 0, sizeof(struct target_pt_regs));
3444 /* Zero out image_info */
3445 memset(info, 0, sizeof(struct image_info));
3447 memset(&bprm, 0, sizeof (bprm));
3449 /* Scan interp_prefix dir for replacement files. */
3450 init_paths(interp_prefix);
3452 if (cpu_model == NULL) {
3453 #if defined(TARGET_I386)
3454 #ifdef TARGET_X86_64
3455 cpu_model = "qemu64";
3457 cpu_model = "qemu32";
3459 #elif defined(TARGET_ARM)
3461 #elif defined(TARGET_UNICORE32)
3463 #elif defined(TARGET_M68K)
3465 #elif defined(TARGET_SPARC)
3466 #ifdef TARGET_SPARC64
3467 cpu_model = "TI UltraSparc II";
3469 cpu_model = "Fujitsu MB86904";
3471 #elif defined(TARGET_MIPS)
3472 #if defined(TARGET_ABI_MIPSN32) || defined(TARGET_ABI_MIPSN64)
3477 #elif defined TARGET_OPENRISC
3478 cpu_model = "or1200";
3479 #elif defined(TARGET_PPC)
3481 cpu_model = "970fx";
3490 cpu_exec_init_all();
3491 /* NOTE: we need to init the CPU at this stage to get
3492 qemu_host_page_size */
3493 env = cpu_init(cpu_model);
3495 fprintf(stderr, "Unable to find CPU definition\n");
3498 #if defined(TARGET_I386) || defined(TARGET_SPARC) || defined(TARGET_PPC)
3499 cpu_reset(ENV_GET_CPU(env));
3504 if (getenv("QEMU_STRACE")) {
3508 target_environ = envlist_to_environ(envlist, NULL);
3509 envlist_free(envlist);
3511 #if defined(CONFIG_USE_GUEST_BASE)
3513 * Now that page sizes are configured in cpu_init() we can do
3514 * proper page alignment for guest_base.
3516 guest_base = HOST_PAGE_ALIGN(guest_base);
3518 if (reserved_va || have_guest_base) {
3519 guest_base = init_guest_space(guest_base, reserved_va, 0,
3521 if (guest_base == (unsigned long)-1) {
3522 fprintf(stderr, "Unable to reserve guest address space\n");
3527 mmap_next_start = reserved_va;
3530 #endif /* CONFIG_USE_GUEST_BASE */
3533 * Read in mmap_min_addr kernel parameter. This value is used
3534 * When loading the ELF image to determine whether guest_base
3535 * is needed. It is also used in mmap_find_vma.
3540 if ((fp = fopen("/proc/sys/vm/mmap_min_addr", "r")) != NULL) {
3542 if (fscanf(fp, "%lu", &tmp) == 1) {
3543 mmap_min_addr = tmp;
3544 qemu_log("host mmap_min_addr=0x%lx\n", mmap_min_addr);
3551 * Prepare copy of argv vector for target.
3553 target_argc = argc - optind;
3554 target_argv = calloc(target_argc + 1, sizeof (char *));
3555 if (target_argv == NULL) {
3556 (void) fprintf(stderr, "Unable to allocate memory for target_argv\n");
3561 * If argv0 is specified (using '-0' switch) we replace
3562 * argv[0] pointer with the given one.
3565 if (argv0 != NULL) {
3566 target_argv[i++] = strdup(argv0);
3568 for (; i < target_argc; i++) {
3569 target_argv[i] = strdup(argv[optind + i]);
3571 target_argv[target_argc] = NULL;
3573 ts = g_malloc0 (sizeof(TaskState));
3574 init_task_state(ts);
3575 /* build Task State */
3581 ret = loader_exec(filename, target_argv, target_environ, regs,
3584 printf("Error %d while loading %s\n", ret, filename);
3588 for (wrk = target_environ; *wrk; wrk++) {
3592 free(target_environ);
3594 if (qemu_log_enabled()) {
3595 #if defined(CONFIG_USE_GUEST_BASE)
3596 qemu_log("guest_base 0x%lx\n", guest_base);
3600 qemu_log("start_brk 0x" TARGET_ABI_FMT_lx "\n", info->start_brk);
3601 qemu_log("end_code 0x" TARGET_ABI_FMT_lx "\n", info->end_code);
3602 qemu_log("start_code 0x" TARGET_ABI_FMT_lx "\n",
3604 qemu_log("start_data 0x" TARGET_ABI_FMT_lx "\n",
3606 qemu_log("end_data 0x" TARGET_ABI_FMT_lx "\n", info->end_data);
3607 qemu_log("start_stack 0x" TARGET_ABI_FMT_lx "\n",
3609 qemu_log("brk 0x" TARGET_ABI_FMT_lx "\n", info->brk);
3610 qemu_log("entry 0x" TARGET_ABI_FMT_lx "\n", info->entry);
3613 target_set_brk(info->brk);
3617 #if defined(CONFIG_USE_GUEST_BASE)
3618 /* Now that we've loaded the binary, GUEST_BASE is fixed. Delay
3619 generating the prologue until now so that the prologue can take
3620 the real value of GUEST_BASE into account. */
3621 tcg_prologue_init(&tcg_ctx);
3624 #if defined(TARGET_I386)
3625 cpu_x86_set_cpl(env, 3);
3627 env->cr[0] = CR0_PG_MASK | CR0_WP_MASK | CR0_PE_MASK;
3628 env->hflags |= HF_PE_MASK;
3629 if (env->cpuid_features & CPUID_SSE) {
3630 env->cr[4] |= CR4_OSFXSR_MASK;
3631 env->hflags |= HF_OSFXSR_MASK;
3633 #ifndef TARGET_ABI32
3634 /* enable 64 bit mode if possible */
3635 if (!(env->cpuid_ext2_features & CPUID_EXT2_LM)) {
3636 fprintf(stderr, "The selected x86 CPU does not support 64 bit mode\n");
3639 env->cr[4] |= CR4_PAE_MASK;
3640 env->efer |= MSR_EFER_LMA | MSR_EFER_LME;
3641 env->hflags |= HF_LMA_MASK;
3644 /* flags setup : we activate the IRQs by default as in user mode */
3645 env->eflags |= IF_MASK;
3647 /* linux register setup */
3648 #ifndef TARGET_ABI32
3649 env->regs[R_EAX] = regs->rax;
3650 env->regs[R_EBX] = regs->rbx;
3651 env->regs[R_ECX] = regs->rcx;
3652 env->regs[R_EDX] = regs->rdx;
3653 env->regs[R_ESI] = regs->rsi;
3654 env->regs[R_EDI] = regs->rdi;
3655 env->regs[R_EBP] = regs->rbp;
3656 env->regs[R_ESP] = regs->rsp;
3657 env->eip = regs->rip;
3659 env->regs[R_EAX] = regs->eax;
3660 env->regs[R_EBX] = regs->ebx;
3661 env->regs[R_ECX] = regs->ecx;
3662 env->regs[R_EDX] = regs->edx;
3663 env->regs[R_ESI] = regs->esi;
3664 env->regs[R_EDI] = regs->edi;
3665 env->regs[R_EBP] = regs->ebp;
3666 env->regs[R_ESP] = regs->esp;
3667 env->eip = regs->eip;
3670 /* linux interrupt setup */
3671 #ifndef TARGET_ABI32
3672 env->idt.limit = 511;
3674 env->idt.limit = 255;
3676 env->idt.base = target_mmap(0, sizeof(uint64_t) * (env->idt.limit + 1),
3677 PROT_READ|PROT_WRITE,
3678 MAP_ANONYMOUS|MAP_PRIVATE, -1, 0);
3679 idt_table = g2h(env->idt.base);
3702 /* linux segment setup */
3704 uint64_t *gdt_table;
3705 env->gdt.base = target_mmap(0, sizeof(uint64_t) * TARGET_GDT_ENTRIES,
3706 PROT_READ|PROT_WRITE,
3707 MAP_ANONYMOUS|MAP_PRIVATE, -1, 0);
3708 env->gdt.limit = sizeof(uint64_t) * TARGET_GDT_ENTRIES - 1;
3709 gdt_table = g2h(env->gdt.base);
3711 write_dt(&gdt_table[__USER_CS >> 3], 0, 0xfffff,
3712 DESC_G_MASK | DESC_B_MASK | DESC_P_MASK | DESC_S_MASK |
3713 (3 << DESC_DPL_SHIFT) | (0xa << DESC_TYPE_SHIFT));
3715 /* 64 bit code segment */
3716 write_dt(&gdt_table[__USER_CS >> 3], 0, 0xfffff,
3717 DESC_G_MASK | DESC_B_MASK | DESC_P_MASK | DESC_S_MASK |
3719 (3 << DESC_DPL_SHIFT) | (0xa << DESC_TYPE_SHIFT));
3721 write_dt(&gdt_table[__USER_DS >> 3], 0, 0xfffff,
3722 DESC_G_MASK | DESC_B_MASK | DESC_P_MASK | DESC_S_MASK |
3723 (3 << DESC_DPL_SHIFT) | (0x2 << DESC_TYPE_SHIFT));
3725 cpu_x86_load_seg(env, R_CS, __USER_CS);
3726 cpu_x86_load_seg(env, R_SS, __USER_DS);
3728 cpu_x86_load_seg(env, R_DS, __USER_DS);
3729 cpu_x86_load_seg(env, R_ES, __USER_DS);
3730 cpu_x86_load_seg(env, R_FS, __USER_DS);
3731 cpu_x86_load_seg(env, R_GS, __USER_DS);
3732 /* This hack makes Wine work... */
3733 env->segs[R_FS].selector = 0;
3735 cpu_x86_load_seg(env, R_DS, 0);
3736 cpu_x86_load_seg(env, R_ES, 0);
3737 cpu_x86_load_seg(env, R_FS, 0);
3738 cpu_x86_load_seg(env, R_GS, 0);
3740 #elif defined(TARGET_ARM)
3743 cpsr_write(env, regs->uregs[16], 0xffffffff);
3744 for(i = 0; i < 16; i++) {
3745 env->regs[i] = regs->uregs[i];
3748 if (EF_ARM_EABI_VERSION(info->elf_flags) >= EF_ARM_EABI_VER4
3749 && (info->elf_flags & EF_ARM_BE8)) {
3750 env->bswap_code = 1;
3753 #elif defined(TARGET_UNICORE32)
3756 cpu_asr_write(env, regs->uregs[32], 0xffffffff);
3757 for (i = 0; i < 32; i++) {
3758 env->regs[i] = regs->uregs[i];
3761 #elif defined(TARGET_SPARC)
3765 env->npc = regs->npc;
3767 for(i = 0; i < 8; i++)
3768 env->gregs[i] = regs->u_regs[i];
3769 for(i = 0; i < 8; i++)
3770 env->regwptr[i] = regs->u_regs[i + 8];
3772 #elif defined(TARGET_PPC)
3776 #if defined(TARGET_PPC64)
3777 #if defined(TARGET_ABI32)
3778 env->msr &= ~((target_ulong)1 << MSR_SF);
3780 env->msr |= (target_ulong)1 << MSR_SF;
3783 env->nip = regs->nip;
3784 for(i = 0; i < 32; i++) {
3785 env->gpr[i] = regs->gpr[i];
3788 #elif defined(TARGET_M68K)
3791 env->dregs[0] = regs->d0;
3792 env->dregs[1] = regs->d1;
3793 env->dregs[2] = regs->d2;
3794 env->dregs[3] = regs->d3;
3795 env->dregs[4] = regs->d4;
3796 env->dregs[5] = regs->d5;
3797 env->dregs[6] = regs->d6;
3798 env->dregs[7] = regs->d7;
3799 env->aregs[0] = regs->a0;
3800 env->aregs[1] = regs->a1;
3801 env->aregs[2] = regs->a2;
3802 env->aregs[3] = regs->a3;
3803 env->aregs[4] = regs->a4;
3804 env->aregs[5] = regs->a5;
3805 env->aregs[6] = regs->a6;
3806 env->aregs[7] = regs->usp;
3808 ts->sim_syscalls = 1;
3810 #elif defined(TARGET_MICROBLAZE)
3812 env->regs[0] = regs->r0;
3813 env->regs[1] = regs->r1;
3814 env->regs[2] = regs->r2;
3815 env->regs[3] = regs->r3;
3816 env->regs[4] = regs->r4;
3817 env->regs[5] = regs->r5;
3818 env->regs[6] = regs->r6;
3819 env->regs[7] = regs->r7;
3820 env->regs[8] = regs->r8;
3821 env->regs[9] = regs->r9;
3822 env->regs[10] = regs->r10;
3823 env->regs[11] = regs->r11;
3824 env->regs[12] = regs->r12;
3825 env->regs[13] = regs->r13;
3826 env->regs[14] = regs->r14;
3827 env->regs[15] = regs->r15;
3828 env->regs[16] = regs->r16;
3829 env->regs[17] = regs->r17;
3830 env->regs[18] = regs->r18;
3831 env->regs[19] = regs->r19;
3832 env->regs[20] = regs->r20;
3833 env->regs[21] = regs->r21;
3834 env->regs[22] = regs->r22;
3835 env->regs[23] = regs->r23;
3836 env->regs[24] = regs->r24;
3837 env->regs[25] = regs->r25;
3838 env->regs[26] = regs->r26;
3839 env->regs[27] = regs->r27;
3840 env->regs[28] = regs->r28;
3841 env->regs[29] = regs->r29;
3842 env->regs[30] = regs->r30;
3843 env->regs[31] = regs->r31;
3844 env->sregs[SR_PC] = regs->pc;
3846 #elif defined(TARGET_MIPS)
3850 for(i = 0; i < 32; i++) {
3851 env->active_tc.gpr[i] = regs->regs[i];
3853 env->active_tc.PC = regs->cp0_epc & ~(target_ulong)1;
3854 if (regs->cp0_epc & 1) {
3855 env->hflags |= MIPS_HFLAG_M16;
3858 #elif defined(TARGET_OPENRISC)
3862 for (i = 0; i < 32; i++) {
3863 env->gpr[i] = regs->gpr[i];
3869 #elif defined(TARGET_SH4)
3873 for(i = 0; i < 16; i++) {
3874 env->gregs[i] = regs->regs[i];
3878 #elif defined(TARGET_ALPHA)
3882 for(i = 0; i < 28; i++) {
3883 env->ir[i] = ((abi_ulong *)regs)[i];
3885 env->ir[IR_SP] = regs->usp;
3888 #elif defined(TARGET_CRIS)
3890 env->regs[0] = regs->r0;
3891 env->regs[1] = regs->r1;
3892 env->regs[2] = regs->r2;
3893 env->regs[3] = regs->r3;
3894 env->regs[4] = regs->r4;
3895 env->regs[5] = regs->r5;
3896 env->regs[6] = regs->r6;
3897 env->regs[7] = regs->r7;
3898 env->regs[8] = regs->r8;
3899 env->regs[9] = regs->r9;
3900 env->regs[10] = regs->r10;
3901 env->regs[11] = regs->r11;
3902 env->regs[12] = regs->r12;
3903 env->regs[13] = regs->r13;
3904 env->regs[14] = info->start_stack;
3905 env->regs[15] = regs->acr;
3906 env->pc = regs->erp;
3908 #elif defined(TARGET_S390X)
3911 for (i = 0; i < 16; i++) {
3912 env->regs[i] = regs->gprs[i];
3914 env->psw.mask = regs->psw.mask;
3915 env->psw.addr = regs->psw.addr;
3918 #error unsupported target CPU
3921 #if defined(TARGET_ARM) || defined(TARGET_M68K) || defined(TARGET_UNICORE32)
3922 ts->stack_base = info->start_stack;
3923 ts->heap_base = info->brk;
3924 /* This will be filled in on the first SYS_HEAPINFO call. */
3929 if (gdbserver_start(gdbstub_port) < 0) {
3930 fprintf(stderr, "qemu: could not open gdbserver on port %d\n",
3934 gdb_handlesig(env, 0);