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/>.
19 #include "qemu/osdep.h"
20 #include "qemu-version.h"
21 #include <sys/syscall.h>
22 #include <sys/resource.h>
24 #include "qapi/error.h"
26 #include "qemu/path.h"
27 #include "qemu/config-file.h"
28 #include "qemu/cutils.h"
29 #include "qemu/help_option.h"
31 #include "exec/exec-all.h"
33 #include "qemu/timer.h"
34 #include "qemu/envlist.h"
37 #include "trace/control.h"
42 static const char *filename
;
43 static const char *argv0
;
44 static int gdbstub_port
;
45 static envlist_t
*envlist
;
46 static const char *cpu_model
;
47 unsigned long mmap_min_addr
;
48 unsigned long guest_base
;
51 #define EXCP_DUMP(env, fmt, ...) \
53 CPUState *cs = ENV_GET_CPU(env); \
54 fprintf(stderr, fmt , ## __VA_ARGS__); \
55 cpu_dump_state(cs, stderr, fprintf, 0); \
56 if (qemu_log_separate()) { \
57 qemu_log(fmt, ## __VA_ARGS__); \
58 log_cpu_state(cs, 0); \
63 * When running 32-on-64 we should make sure we can fit all of the possible
64 * guest address space into a contiguous chunk of virtual host memory.
66 * This way we will never overlap with our own libraries or binaries or stack
67 * or anything else that QEMU maps.
69 * Many cpus reserve the high bit (or more than one for some 64-bit cpus)
70 * of the address for the kernel. Some cpus rely on this and user space
71 * uses the high bit(s) for pointer tagging and the like. For them, we
72 * must preserve the expected address space.
74 #ifndef MAX_RESERVED_VA
75 # if HOST_LONG_BITS > TARGET_VIRT_ADDR_SPACE_BITS
76 # if TARGET_VIRT_ADDR_SPACE_BITS == 32 && \
77 (TARGET_LONG_BITS == 32 || defined(TARGET_ABI32))
78 /* There are a number of places where we assign reserved_va to a variable
79 of type abi_ulong and expect it to fit. Avoid the last page. */
80 # define MAX_RESERVED_VA (0xfffffffful & TARGET_PAGE_MASK)
82 # define MAX_RESERVED_VA (1ul << TARGET_VIRT_ADDR_SPACE_BITS)
85 # define MAX_RESERVED_VA 0
89 /* That said, reserving *too* much vm space via mmap can run into problems
90 with rlimits, oom due to page table creation, etc. We will still try it,
91 if directed by the command-line option, but not by default. */
92 #if HOST_LONG_BITS == 64 && TARGET_VIRT_ADDR_SPACE_BITS <= 32
93 unsigned long reserved_va
= MAX_RESERVED_VA
;
95 unsigned long reserved_va
;
98 static void usage(int exitcode
);
100 static const char *interp_prefix
= CONFIG_QEMU_INTERP_PREFIX
;
101 const char *qemu_uname_release
;
103 /* XXX: on x86 MAP_GROWSDOWN only works if ESP <= address + 32, so
104 we allocate a bigger stack. Need a better solution, for example
105 by remapping the process stack directly at the right place */
106 unsigned long guest_stack_size
= 8 * 1024 * 1024UL;
108 void gemu_log(const char *fmt
, ...)
113 vfprintf(stderr
, fmt
, ap
);
117 #if defined(TARGET_I386)
118 int cpu_get_pic_interrupt(CPUX86State
*env
)
124 /***********************************************************/
125 /* Helper routines for implementing atomic operations. */
127 /* Make sure everything is in a consistent state for calling fork(). */
128 void fork_start(void)
131 qemu_mutex_lock(&tb_ctx
.tb_lock
);
135 void fork_end(int child
)
137 mmap_fork_end(child
);
139 CPUState
*cpu
, *next_cpu
;
140 /* Child processes created by fork() only have a single thread.
141 Discard information about the parent threads. */
142 CPU_FOREACH_SAFE(cpu
, next_cpu
) {
143 if (cpu
!= thread_cpu
) {
144 QTAILQ_REMOVE(&cpus
, cpu
, node
);
147 qemu_mutex_init(&tb_ctx
.tb_lock
);
148 qemu_init_cpu_list();
149 gdbserver_fork(thread_cpu
);
151 qemu_mutex_unlock(&tb_ctx
.tb_lock
);
157 /***********************************************************/
158 /* CPUX86 core interface */
160 uint64_t cpu_get_tsc(CPUX86State
*env
)
162 return cpu_get_host_ticks();
165 static void write_dt(void *ptr
, unsigned long addr
, unsigned long limit
,
170 e1
= (addr
<< 16) | (limit
& 0xffff);
171 e2
= ((addr
>> 16) & 0xff) | (addr
& 0xff000000) | (limit
& 0x000f0000);
178 static uint64_t *idt_table
;
180 static void set_gate64(void *ptr
, unsigned int type
, unsigned int dpl
,
181 uint64_t addr
, unsigned int sel
)
184 e1
= (addr
& 0xffff) | (sel
<< 16);
185 e2
= (addr
& 0xffff0000) | 0x8000 | (dpl
<< 13) | (type
<< 8);
189 p
[2] = tswap32(addr
>> 32);
192 /* only dpl matters as we do only user space emulation */
193 static void set_idt(int n
, unsigned int dpl
)
195 set_gate64(idt_table
+ n
* 2, 0, dpl
, 0, 0);
198 static void set_gate(void *ptr
, unsigned int type
, unsigned int dpl
,
199 uint32_t addr
, unsigned int sel
)
202 e1
= (addr
& 0xffff) | (sel
<< 16);
203 e2
= (addr
& 0xffff0000) | 0x8000 | (dpl
<< 13) | (type
<< 8);
209 /* only dpl matters as we do only user space emulation */
210 static void set_idt(int n
, unsigned int dpl
)
212 set_gate(idt_table
+ n
, 0, dpl
, 0, 0);
216 void cpu_loop(CPUX86State
*env
)
218 CPUState
*cs
= CPU(x86_env_get_cpu(env
));
222 target_siginfo_t info
;
226 trapnr
= cpu_exec(cs
);
228 process_queued_cpu_work(cs
);
232 /* linux syscall from int $0x80 */
233 ret
= do_syscall(env
,
242 if (ret
== -TARGET_ERESTARTSYS
) {
244 } else if (ret
!= -TARGET_QEMU_ESIGRETURN
) {
245 env
->regs
[R_EAX
] = ret
;
250 /* linux syscall from syscall instruction */
251 ret
= do_syscall(env
,
260 if (ret
== -TARGET_ERESTARTSYS
) {
262 } else if (ret
!= -TARGET_QEMU_ESIGRETURN
) {
263 env
->regs
[R_EAX
] = ret
;
269 info
.si_signo
= TARGET_SIGBUS
;
271 info
.si_code
= TARGET_SI_KERNEL
;
272 info
._sifields
._sigfault
._addr
= 0;
273 queue_signal(env
, info
.si_signo
, QEMU_SI_FAULT
, &info
);
276 /* XXX: potential problem if ABI32 */
277 #ifndef TARGET_X86_64
278 if (env
->eflags
& VM_MASK
) {
279 handle_vm86_fault(env
);
283 info
.si_signo
= TARGET_SIGSEGV
;
285 info
.si_code
= TARGET_SI_KERNEL
;
286 info
._sifields
._sigfault
._addr
= 0;
287 queue_signal(env
, info
.si_signo
, QEMU_SI_FAULT
, &info
);
291 info
.si_signo
= TARGET_SIGSEGV
;
293 if (!(env
->error_code
& 1))
294 info
.si_code
= TARGET_SEGV_MAPERR
;
296 info
.si_code
= TARGET_SEGV_ACCERR
;
297 info
._sifields
._sigfault
._addr
= env
->cr
[2];
298 queue_signal(env
, info
.si_signo
, QEMU_SI_FAULT
, &info
);
301 #ifndef TARGET_X86_64
302 if (env
->eflags
& VM_MASK
) {
303 handle_vm86_trap(env
, trapnr
);
307 /* division by zero */
308 info
.si_signo
= TARGET_SIGFPE
;
310 info
.si_code
= TARGET_FPE_INTDIV
;
311 info
._sifields
._sigfault
._addr
= env
->eip
;
312 queue_signal(env
, info
.si_signo
, QEMU_SI_FAULT
, &info
);
317 #ifndef TARGET_X86_64
318 if (env
->eflags
& VM_MASK
) {
319 handle_vm86_trap(env
, trapnr
);
323 info
.si_signo
= TARGET_SIGTRAP
;
325 if (trapnr
== EXCP01_DB
) {
326 info
.si_code
= TARGET_TRAP_BRKPT
;
327 info
._sifields
._sigfault
._addr
= env
->eip
;
329 info
.si_code
= TARGET_SI_KERNEL
;
330 info
._sifields
._sigfault
._addr
= 0;
332 queue_signal(env
, info
.si_signo
, QEMU_SI_FAULT
, &info
);
337 #ifndef TARGET_X86_64
338 if (env
->eflags
& VM_MASK
) {
339 handle_vm86_trap(env
, trapnr
);
343 info
.si_signo
= TARGET_SIGSEGV
;
345 info
.si_code
= TARGET_SI_KERNEL
;
346 info
._sifields
._sigfault
._addr
= 0;
347 queue_signal(env
, info
.si_signo
, QEMU_SI_FAULT
, &info
);
351 info
.si_signo
= TARGET_SIGILL
;
353 info
.si_code
= TARGET_ILL_ILLOPN
;
354 info
._sifields
._sigfault
._addr
= env
->eip
;
355 queue_signal(env
, info
.si_signo
, QEMU_SI_FAULT
, &info
);
358 /* just indicate that signals should be handled asap */
364 sig
= gdb_handlesig(cs
, TARGET_SIGTRAP
);
369 info
.si_code
= TARGET_TRAP_BRKPT
;
370 queue_signal(env
, info
.si_signo
, QEMU_SI_FAULT
, &info
);
375 cpu_exec_step_atomic(cs
);
378 pc
= env
->segs
[R_CS
].base
+ env
->eip
;
379 EXCP_DUMP(env
, "qemu: 0x%08lx: unhandled CPU exception 0x%x - aborting\n",
383 process_pending_signals(env
);
390 #define get_user_code_u32(x, gaddr, env) \
391 ({ abi_long __r = get_user_u32((x), (gaddr)); \
392 if (!__r && bswap_code(arm_sctlr_b(env))) { \
398 #define get_user_code_u16(x, gaddr, env) \
399 ({ abi_long __r = get_user_u16((x), (gaddr)); \
400 if (!__r && bswap_code(arm_sctlr_b(env))) { \
406 #define get_user_data_u32(x, gaddr, env) \
407 ({ abi_long __r = get_user_u32((x), (gaddr)); \
408 if (!__r && arm_cpu_bswap_data(env)) { \
414 #define get_user_data_u16(x, gaddr, env) \
415 ({ abi_long __r = get_user_u16((x), (gaddr)); \
416 if (!__r && arm_cpu_bswap_data(env)) { \
422 #define put_user_data_u32(x, gaddr, env) \
423 ({ typeof(x) __x = (x); \
424 if (arm_cpu_bswap_data(env)) { \
425 __x = bswap32(__x); \
427 put_user_u32(__x, (gaddr)); \
430 #define put_user_data_u16(x, gaddr, env) \
431 ({ typeof(x) __x = (x); \
432 if (arm_cpu_bswap_data(env)) { \
433 __x = bswap16(__x); \
435 put_user_u16(__x, (gaddr)); \
439 /* Commpage handling -- there is no commpage for AArch64 */
442 * See the Linux kernel's Documentation/arm/kernel_user_helpers.txt
444 * r0 = pointer to oldval
445 * r1 = pointer to newval
446 * r2 = pointer to target value
449 * r0 = 0 if *ptr was changed, non-0 if no exchange happened
450 * C set if *ptr was changed, clear if no exchange happened
452 * Note segv's in kernel helpers are a bit tricky, we can set the
453 * data address sensibly but the PC address is just the entry point.
455 static void arm_kernel_cmpxchg64_helper(CPUARMState
*env
)
457 uint64_t oldval
, newval
, val
;
459 target_siginfo_t info
;
461 /* Based on the 32 bit code in do_kernel_trap */
463 /* XXX: This only works between threads, not between processes.
464 It's probably possible to implement this with native host
465 operations. However things like ldrex/strex are much harder so
466 there's not much point trying. */
468 cpsr
= cpsr_read(env
);
471 if (get_user_u64(oldval
, env
->regs
[0])) {
472 env
->exception
.vaddress
= env
->regs
[0];
476 if (get_user_u64(newval
, env
->regs
[1])) {
477 env
->exception
.vaddress
= env
->regs
[1];
481 if (get_user_u64(val
, addr
)) {
482 env
->exception
.vaddress
= addr
;
489 if (put_user_u64(val
, addr
)) {
490 env
->exception
.vaddress
= addr
;
500 cpsr_write(env
, cpsr
, CPSR_C
, CPSRWriteByInstr
);
506 /* We get the PC of the entry address - which is as good as anything,
507 on a real kernel what you get depends on which mode it uses. */
508 info
.si_signo
= TARGET_SIGSEGV
;
510 /* XXX: check env->error_code */
511 info
.si_code
= TARGET_SEGV_MAPERR
;
512 info
._sifields
._sigfault
._addr
= env
->exception
.vaddress
;
513 queue_signal(env
, info
.si_signo
, QEMU_SI_FAULT
, &info
);
516 /* Handle a jump to the kernel code page. */
518 do_kernel_trap(CPUARMState
*env
)
524 switch (env
->regs
[15]) {
525 case 0xffff0fa0: /* __kernel_memory_barrier */
526 /* ??? No-op. Will need to do better for SMP. */
528 case 0xffff0fc0: /* __kernel_cmpxchg */
529 /* XXX: This only works between threads, not between processes.
530 It's probably possible to implement this with native host
531 operations. However things like ldrex/strex are much harder so
532 there's not much point trying. */
534 cpsr
= cpsr_read(env
);
536 /* FIXME: This should SEGV if the access fails. */
537 if (get_user_u32(val
, addr
))
539 if (val
== env
->regs
[0]) {
541 /* FIXME: Check for segfaults. */
542 put_user_u32(val
, addr
);
549 cpsr_write(env
, cpsr
, CPSR_C
, CPSRWriteByInstr
);
552 case 0xffff0fe0: /* __kernel_get_tls */
553 env
->regs
[0] = cpu_get_tls(env
);
555 case 0xffff0f60: /* __kernel_cmpxchg64 */
556 arm_kernel_cmpxchg64_helper(env
);
562 /* Jump back to the caller. */
563 addr
= env
->regs
[14];
568 env
->regs
[15] = addr
;
573 void cpu_loop(CPUARMState
*env
)
575 CPUState
*cs
= CPU(arm_env_get_cpu(env
));
577 unsigned int n
, insn
;
578 target_siginfo_t info
;
584 trapnr
= cpu_exec(cs
);
586 process_queued_cpu_work(cs
);
593 TaskState
*ts
= cs
->opaque
;
597 /* we handle the FPU emulation here, as Linux */
598 /* we get the opcode */
599 /* FIXME - what to do if get_user() fails? */
600 get_user_code_u32(opcode
, env
->regs
[15], env
);
602 rc
= EmulateAll(opcode
, &ts
->fpa
, env
);
603 if (rc
== 0) { /* illegal instruction */
604 info
.si_signo
= TARGET_SIGILL
;
606 info
.si_code
= TARGET_ILL_ILLOPN
;
607 info
._sifields
._sigfault
._addr
= env
->regs
[15];
608 queue_signal(env
, info
.si_signo
, QEMU_SI_FAULT
, &info
);
609 } else if (rc
< 0) { /* FP exception */
612 /* translate softfloat flags to FPSR flags */
613 if (-rc
& float_flag_invalid
)
615 if (-rc
& float_flag_divbyzero
)
617 if (-rc
& float_flag_overflow
)
619 if (-rc
& float_flag_underflow
)
621 if (-rc
& float_flag_inexact
)
624 FPSR fpsr
= ts
->fpa
.fpsr
;
625 //printf("fpsr 0x%x, arm_fpe 0x%x\n",fpsr,arm_fpe);
627 if (fpsr
& (arm_fpe
<< 16)) { /* exception enabled? */
628 info
.si_signo
= TARGET_SIGFPE
;
631 /* ordered by priority, least first */
632 if (arm_fpe
& BIT_IXC
) info
.si_code
= TARGET_FPE_FLTRES
;
633 if (arm_fpe
& BIT_UFC
) info
.si_code
= TARGET_FPE_FLTUND
;
634 if (arm_fpe
& BIT_OFC
) info
.si_code
= TARGET_FPE_FLTOVF
;
635 if (arm_fpe
& BIT_DZC
) info
.si_code
= TARGET_FPE_FLTDIV
;
636 if (arm_fpe
& BIT_IOC
) info
.si_code
= TARGET_FPE_FLTINV
;
638 info
._sifields
._sigfault
._addr
= env
->regs
[15];
639 queue_signal(env
, info
.si_signo
, QEMU_SI_FAULT
, &info
);
644 /* accumulate unenabled exceptions */
645 if ((!(fpsr
& BIT_IXE
)) && (arm_fpe
& BIT_IXC
))
647 if ((!(fpsr
& BIT_UFE
)) && (arm_fpe
& BIT_UFC
))
649 if ((!(fpsr
& BIT_OFE
)) && (arm_fpe
& BIT_OFC
))
651 if ((!(fpsr
& BIT_DZE
)) && (arm_fpe
& BIT_DZC
))
653 if ((!(fpsr
& BIT_IOE
)) && (arm_fpe
& BIT_IOC
))
656 } else { /* everything OK */
667 if (trapnr
== EXCP_BKPT
) {
669 /* FIXME - what to do if get_user() fails? */
670 get_user_code_u16(insn
, env
->regs
[15], env
);
674 /* FIXME - what to do if get_user() fails? */
675 get_user_code_u32(insn
, env
->regs
[15], env
);
676 n
= (insn
& 0xf) | ((insn
>> 4) & 0xff0);
681 /* FIXME - what to do if get_user() fails? */
682 get_user_code_u16(insn
, env
->regs
[15] - 2, env
);
685 /* FIXME - what to do if get_user() fails? */
686 get_user_code_u32(insn
, env
->regs
[15] - 4, env
);
691 if (n
== ARM_NR_cacheflush
) {
693 } else if (n
== ARM_NR_semihosting
694 || n
== ARM_NR_thumb_semihosting
) {
695 env
->regs
[0] = do_arm_semihosting (env
);
696 } else if (n
== 0 || n
>= ARM_SYSCALL_BASE
|| env
->thumb
) {
698 if (env
->thumb
|| n
== 0) {
701 n
-= ARM_SYSCALL_BASE
;
704 if ( n
> ARM_NR_BASE
) {
706 case ARM_NR_cacheflush
:
710 cpu_set_tls(env
, env
->regs
[0]);
713 case ARM_NR_breakpoint
:
714 env
->regs
[15] -= env
->thumb
? 2 : 4;
717 gemu_log("qemu: Unsupported ARM syscall: 0x%x\n",
719 env
->regs
[0] = -TARGET_ENOSYS
;
723 ret
= do_syscall(env
,
732 if (ret
== -TARGET_ERESTARTSYS
) {
733 env
->regs
[15] -= env
->thumb
? 2 : 4;
734 } else if (ret
!= -TARGET_QEMU_ESIGRETURN
) {
744 env
->regs
[0] = do_arm_semihosting(env
);
747 /* just indicate that signals should be handled asap */
749 case EXCP_PREFETCH_ABORT
:
750 case EXCP_DATA_ABORT
:
751 addr
= env
->exception
.vaddress
;
753 info
.si_signo
= TARGET_SIGSEGV
;
755 /* XXX: check env->error_code */
756 info
.si_code
= TARGET_SEGV_MAPERR
;
757 info
._sifields
._sigfault
._addr
= addr
;
758 queue_signal(env
, info
.si_signo
, QEMU_SI_FAULT
, &info
);
766 sig
= gdb_handlesig(cs
, TARGET_SIGTRAP
);
771 info
.si_code
= TARGET_TRAP_BRKPT
;
772 queue_signal(env
, info
.si_signo
, QEMU_SI_FAULT
, &info
);
776 case EXCP_KERNEL_TRAP
:
777 if (do_kernel_trap(env
))
781 /* nothing to do here for user-mode, just resume guest code */
784 cpu_exec_step_atomic(cs
);
788 EXCP_DUMP(env
, "qemu: unhandled CPU exception 0x%x - aborting\n", trapnr
);
791 process_pending_signals(env
);
797 /* AArch64 main loop */
798 void cpu_loop(CPUARMState
*env
)
800 CPUState
*cs
= CPU(arm_env_get_cpu(env
));
803 target_siginfo_t info
;
807 trapnr
= cpu_exec(cs
);
809 process_queued_cpu_work(cs
);
813 ret
= do_syscall(env
,
822 if (ret
== -TARGET_ERESTARTSYS
) {
824 } else if (ret
!= -TARGET_QEMU_ESIGRETURN
) {
829 /* just indicate that signals should be handled asap */
832 info
.si_signo
= TARGET_SIGILL
;
834 info
.si_code
= TARGET_ILL_ILLOPN
;
835 info
._sifields
._sigfault
._addr
= env
->pc
;
836 queue_signal(env
, info
.si_signo
, QEMU_SI_FAULT
, &info
);
838 case EXCP_PREFETCH_ABORT
:
839 case EXCP_DATA_ABORT
:
840 info
.si_signo
= TARGET_SIGSEGV
;
842 /* XXX: check env->error_code */
843 info
.si_code
= TARGET_SEGV_MAPERR
;
844 info
._sifields
._sigfault
._addr
= env
->exception
.vaddress
;
845 queue_signal(env
, info
.si_signo
, QEMU_SI_FAULT
, &info
);
849 sig
= gdb_handlesig(cs
, TARGET_SIGTRAP
);
853 info
.si_code
= TARGET_TRAP_BRKPT
;
854 queue_signal(env
, info
.si_signo
, QEMU_SI_FAULT
, &info
);
858 env
->xregs
[0] = do_arm_semihosting(env
);
861 /* nothing to do here for user-mode, just resume guest code */
864 cpu_exec_step_atomic(cs
);
867 EXCP_DUMP(env
, "qemu: unhandled CPU exception 0x%x - aborting\n", trapnr
);
870 process_pending_signals(env
);
871 /* Exception return on AArch64 always clears the exclusive monitor,
872 * so any return to running guest code implies this.
874 env
->exclusive_addr
= -1;
877 #endif /* ndef TARGET_ABI32 */
881 #ifdef TARGET_UNICORE32
883 void cpu_loop(CPUUniCore32State
*env
)
885 CPUState
*cs
= CPU(uc32_env_get_cpu(env
));
887 unsigned int n
, insn
;
888 target_siginfo_t info
;
892 trapnr
= cpu_exec(cs
);
894 process_queued_cpu_work(cs
);
900 get_user_u32(insn
, env
->regs
[31] - 4);
903 if (n
>= UC32_SYSCALL_BASE
) {
905 n
-= UC32_SYSCALL_BASE
;
906 if (n
== UC32_SYSCALL_NR_set_tls
) {
907 cpu_set_tls(env
, env
->regs
[0]);
910 abi_long ret
= do_syscall(env
,
919 if (ret
== -TARGET_ERESTARTSYS
) {
921 } else if (ret
!= -TARGET_QEMU_ESIGRETURN
) {
930 case UC32_EXCP_DTRAP
:
931 case UC32_EXCP_ITRAP
:
932 info
.si_signo
= TARGET_SIGSEGV
;
934 /* XXX: check env->error_code */
935 info
.si_code
= TARGET_SEGV_MAPERR
;
936 info
._sifields
._sigfault
._addr
= env
->cp0
.c4_faultaddr
;
937 queue_signal(env
, info
.si_signo
, QEMU_SI_FAULT
, &info
);
940 /* just indicate that signals should be handled asap */
946 sig
= gdb_handlesig(cs
, TARGET_SIGTRAP
);
950 info
.si_code
= TARGET_TRAP_BRKPT
;
951 queue_signal(env
, info
.si_signo
, QEMU_SI_FAULT
, &info
);
956 cpu_exec_step_atomic(cs
);
961 process_pending_signals(env
);
965 EXCP_DUMP(env
, "qemu: unhandled CPU exception 0x%x - aborting\n", trapnr
);
971 #define SPARC64_STACK_BIAS 2047
975 /* WARNING: dealing with register windows _is_ complicated. More info
976 can be found at http://www.sics.se/~psm/sparcstack.html */
977 static inline int get_reg_index(CPUSPARCState
*env
, int cwp
, int index
)
979 index
= (index
+ cwp
* 16) % (16 * env
->nwindows
);
980 /* wrap handling : if cwp is on the last window, then we use the
981 registers 'after' the end */
982 if (index
< 8 && env
->cwp
== env
->nwindows
- 1)
983 index
+= 16 * env
->nwindows
;
987 /* save the register window 'cwp1' */
988 static inline void save_window_offset(CPUSPARCState
*env
, int cwp1
)
993 sp_ptr
= env
->regbase
[get_reg_index(env
, cwp1
, 6)];
994 #ifdef TARGET_SPARC64
996 sp_ptr
+= SPARC64_STACK_BIAS
;
998 #if defined(DEBUG_WIN)
999 printf("win_overflow: sp_ptr=0x" TARGET_ABI_FMT_lx
" save_cwp=%d\n",
1002 for(i
= 0; i
< 16; i
++) {
1003 /* FIXME - what to do if put_user() fails? */
1004 put_user_ual(env
->regbase
[get_reg_index(env
, cwp1
, 8 + i
)], sp_ptr
);
1005 sp_ptr
+= sizeof(abi_ulong
);
1009 static void save_window(CPUSPARCState
*env
)
1011 #ifndef TARGET_SPARC64
1012 unsigned int new_wim
;
1013 new_wim
= ((env
->wim
>> 1) | (env
->wim
<< (env
->nwindows
- 1))) &
1014 ((1LL << env
->nwindows
) - 1);
1015 save_window_offset(env
, cpu_cwp_dec(env
, env
->cwp
- 2));
1018 save_window_offset(env
, cpu_cwp_dec(env
, env
->cwp
- 2));
1024 static void restore_window(CPUSPARCState
*env
)
1026 #ifndef TARGET_SPARC64
1027 unsigned int new_wim
;
1029 unsigned int i
, cwp1
;
1032 #ifndef TARGET_SPARC64
1033 new_wim
= ((env
->wim
<< 1) | (env
->wim
>> (env
->nwindows
- 1))) &
1034 ((1LL << env
->nwindows
) - 1);
1037 /* restore the invalid window */
1038 cwp1
= cpu_cwp_inc(env
, env
->cwp
+ 1);
1039 sp_ptr
= env
->regbase
[get_reg_index(env
, cwp1
, 6)];
1040 #ifdef TARGET_SPARC64
1042 sp_ptr
+= SPARC64_STACK_BIAS
;
1044 #if defined(DEBUG_WIN)
1045 printf("win_underflow: sp_ptr=0x" TARGET_ABI_FMT_lx
" load_cwp=%d\n",
1048 for(i
= 0; i
< 16; i
++) {
1049 /* FIXME - what to do if get_user() fails? */
1050 get_user_ual(env
->regbase
[get_reg_index(env
, cwp1
, 8 + i
)], sp_ptr
);
1051 sp_ptr
+= sizeof(abi_ulong
);
1053 #ifdef TARGET_SPARC64
1055 if (env
->cleanwin
< env
->nwindows
- 1)
1063 static void flush_windows(CPUSPARCState
*env
)
1069 /* if restore would invoke restore_window(), then we can stop */
1070 cwp1
= cpu_cwp_inc(env
, env
->cwp
+ offset
);
1071 #ifndef TARGET_SPARC64
1072 if (env
->wim
& (1 << cwp1
))
1075 if (env
->canrestore
== 0)
1080 save_window_offset(env
, cwp1
);
1083 cwp1
= cpu_cwp_inc(env
, env
->cwp
+ 1);
1084 #ifndef TARGET_SPARC64
1085 /* set wim so that restore will reload the registers */
1086 env
->wim
= 1 << cwp1
;
1088 #if defined(DEBUG_WIN)
1089 printf("flush_windows: nb=%d\n", offset
- 1);
1093 void cpu_loop (CPUSPARCState
*env
)
1095 CPUState
*cs
= CPU(sparc_env_get_cpu(env
));
1098 target_siginfo_t info
;
1102 trapnr
= cpu_exec(cs
);
1104 process_queued_cpu_work(cs
);
1106 /* Compute PSR before exposing state. */
1107 if (env
->cc_op
!= CC_OP_FLAGS
) {
1112 #ifndef TARGET_SPARC64
1119 ret
= do_syscall (env
, env
->gregs
[1],
1120 env
->regwptr
[0], env
->regwptr
[1],
1121 env
->regwptr
[2], env
->regwptr
[3],
1122 env
->regwptr
[4], env
->regwptr
[5],
1124 if (ret
== -TARGET_ERESTARTSYS
|| ret
== -TARGET_QEMU_ESIGRETURN
) {
1127 if ((abi_ulong
)ret
>= (abi_ulong
)(-515)) {
1128 #if defined(TARGET_SPARC64) && !defined(TARGET_ABI32)
1129 env
->xcc
|= PSR_CARRY
;
1131 env
->psr
|= PSR_CARRY
;
1135 #if defined(TARGET_SPARC64) && !defined(TARGET_ABI32)
1136 env
->xcc
&= ~PSR_CARRY
;
1138 env
->psr
&= ~PSR_CARRY
;
1141 env
->regwptr
[0] = ret
;
1142 /* next instruction */
1144 env
->npc
= env
->npc
+ 4;
1146 case 0x83: /* flush windows */
1151 /* next instruction */
1153 env
->npc
= env
->npc
+ 4;
1155 #ifndef TARGET_SPARC64
1156 case TT_WIN_OVF
: /* window overflow */
1159 case TT_WIN_UNF
: /* window underflow */
1160 restore_window(env
);
1165 info
.si_signo
= TARGET_SIGSEGV
;
1167 /* XXX: check env->error_code */
1168 info
.si_code
= TARGET_SEGV_MAPERR
;
1169 info
._sifields
._sigfault
._addr
= env
->mmuregs
[4];
1170 queue_signal(env
, info
.si_signo
, QEMU_SI_FAULT
, &info
);
1174 case TT_SPILL
: /* window overflow */
1177 case TT_FILL
: /* window underflow */
1178 restore_window(env
);
1183 info
.si_signo
= TARGET_SIGSEGV
;
1185 /* XXX: check env->error_code */
1186 info
.si_code
= TARGET_SEGV_MAPERR
;
1187 if (trapnr
== TT_DFAULT
)
1188 info
._sifields
._sigfault
._addr
= env
->dmmu
.mmuregs
[4];
1190 info
._sifields
._sigfault
._addr
= cpu_tsptr(env
)->tpc
;
1191 queue_signal(env
, info
.si_signo
, QEMU_SI_FAULT
, &info
);
1194 #ifndef TARGET_ABI32
1197 sparc64_get_context(env
);
1201 sparc64_set_context(env
);
1205 case EXCP_INTERRUPT
:
1206 /* just indicate that signals should be handled asap */
1210 info
.si_signo
= TARGET_SIGILL
;
1212 info
.si_code
= TARGET_ILL_ILLOPC
;
1213 info
._sifields
._sigfault
._addr
= env
->pc
;
1214 queue_signal(env
, info
.si_signo
, QEMU_SI_FAULT
, &info
);
1221 sig
= gdb_handlesig(cs
, TARGET_SIGTRAP
);
1224 info
.si_signo
= sig
;
1226 info
.si_code
= TARGET_TRAP_BRKPT
;
1227 queue_signal(env
, info
.si_signo
, QEMU_SI_FAULT
, &info
);
1232 cpu_exec_step_atomic(cs
);
1235 printf ("Unhandled trap: 0x%x\n", trapnr
);
1236 cpu_dump_state(cs
, stderr
, fprintf
, 0);
1239 process_pending_signals (env
);
1246 static inline uint64_t cpu_ppc_get_tb(CPUPPCState
*env
)
1248 return cpu_get_host_ticks();
1251 uint64_t cpu_ppc_load_tbl(CPUPPCState
*env
)
1253 return cpu_ppc_get_tb(env
);
1256 uint32_t cpu_ppc_load_tbu(CPUPPCState
*env
)
1258 return cpu_ppc_get_tb(env
) >> 32;
1261 uint64_t cpu_ppc_load_atbl(CPUPPCState
*env
)
1263 return cpu_ppc_get_tb(env
);
1266 uint32_t cpu_ppc_load_atbu(CPUPPCState
*env
)
1268 return cpu_ppc_get_tb(env
) >> 32;
1271 uint32_t cpu_ppc601_load_rtcu(CPUPPCState
*env
)
1272 __attribute__ (( alias ("cpu_ppc_load_tbu") ));
1274 uint32_t cpu_ppc601_load_rtcl(CPUPPCState
*env
)
1276 return cpu_ppc_load_tbl(env
) & 0x3FFFFF80;
1279 /* XXX: to be fixed */
1280 int ppc_dcr_read (ppc_dcr_t
*dcr_env
, int dcrn
, uint32_t *valp
)
1285 int ppc_dcr_write (ppc_dcr_t
*dcr_env
, int dcrn
, uint32_t val
)
1290 static int do_store_exclusive(CPUPPCState
*env
)
1293 target_ulong page_addr
;
1294 target_ulong val
, val2
__attribute__((unused
)) = 0;
1298 addr
= env
->reserve_ea
;
1299 page_addr
= addr
& TARGET_PAGE_MASK
;
1302 flags
= page_get_flags(page_addr
);
1303 if ((flags
& PAGE_READ
) == 0) {
1306 int reg
= env
->reserve_info
& 0x1f;
1307 int size
= env
->reserve_info
>> 5;
1310 if (addr
== env
->reserve_addr
) {
1312 case 1: segv
= get_user_u8(val
, addr
); break;
1313 case 2: segv
= get_user_u16(val
, addr
); break;
1314 case 4: segv
= get_user_u32(val
, addr
); break;
1315 #if defined(TARGET_PPC64)
1316 case 8: segv
= get_user_u64(val
, addr
); break;
1318 segv
= get_user_u64(val
, addr
);
1320 segv
= get_user_u64(val2
, addr
+ 8);
1327 if (!segv
&& val
== env
->reserve_val
) {
1328 val
= env
->gpr
[reg
];
1330 case 1: segv
= put_user_u8(val
, addr
); break;
1331 case 2: segv
= put_user_u16(val
, addr
); break;
1332 case 4: segv
= put_user_u32(val
, addr
); break;
1333 #if defined(TARGET_PPC64)
1334 case 8: segv
= put_user_u64(val
, addr
); break;
1336 if (val2
== env
->reserve_val2
) {
1339 val
= env
->gpr
[reg
+1];
1341 val2
= env
->gpr
[reg
+1];
1343 segv
= put_user_u64(val
, addr
);
1345 segv
= put_user_u64(val2
, addr
+ 8);
1358 env
->crf
[0] = (stored
<< 1) | xer_so
;
1359 env
->reserve_addr
= (target_ulong
)-1;
1369 void cpu_loop(CPUPPCState
*env
)
1371 CPUState
*cs
= CPU(ppc_env_get_cpu(env
));
1372 target_siginfo_t info
;
1378 trapnr
= cpu_exec(cs
);
1380 process_queued_cpu_work(cs
);
1383 case POWERPC_EXCP_NONE
:
1386 case POWERPC_EXCP_CRITICAL
: /* Critical input */
1387 cpu_abort(cs
, "Critical interrupt while in user mode. "
1390 case POWERPC_EXCP_MCHECK
: /* Machine check exception */
1391 cpu_abort(cs
, "Machine check exception while in user mode. "
1394 case POWERPC_EXCP_DSI
: /* Data storage exception */
1395 /* XXX: check this. Seems bugged */
1396 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
->spr
[SPR_DAR
];
1423 queue_signal(env
, info
.si_signo
, QEMU_SI_FAULT
, &info
);
1425 case POWERPC_EXCP_ISI
: /* Instruction storage exception */
1426 /* XXX: check this */
1427 switch (env
->error_code
& 0xFF000000) {
1429 info
.si_signo
= TARGET_SIGSEGV
;
1431 info
.si_code
= TARGET_SEGV_MAPERR
;
1435 info
.si_signo
= TARGET_SIGSEGV
;
1437 info
.si_code
= TARGET_SEGV_ACCERR
;
1440 /* Let's send a regular segfault... */
1441 EXCP_DUMP(env
, "Invalid segfault errno (%02x)\n",
1443 info
.si_signo
= TARGET_SIGSEGV
;
1445 info
.si_code
= TARGET_SEGV_MAPERR
;
1448 info
._sifields
._sigfault
._addr
= env
->nip
- 4;
1449 queue_signal(env
, info
.si_signo
, QEMU_SI_FAULT
, &info
);
1451 case POWERPC_EXCP_EXTERNAL
: /* External input */
1452 cpu_abort(cs
, "External interrupt while in user mode. "
1455 case POWERPC_EXCP_ALIGN
: /* Alignment exception */
1456 /* XXX: check this */
1457 info
.si_signo
= TARGET_SIGBUS
;
1459 info
.si_code
= TARGET_BUS_ADRALN
;
1460 info
._sifields
._sigfault
._addr
= env
->nip
;
1461 queue_signal(env
, info
.si_signo
, QEMU_SI_FAULT
, &info
);
1463 case POWERPC_EXCP_PROGRAM
: /* Program exception */
1464 case POWERPC_EXCP_HV_EMU
: /* HV emulation */
1465 /* XXX: check this */
1466 switch (env
->error_code
& ~0xF) {
1467 case POWERPC_EXCP_FP
:
1468 info
.si_signo
= TARGET_SIGFPE
;
1470 switch (env
->error_code
& 0xF) {
1471 case POWERPC_EXCP_FP_OX
:
1472 info
.si_code
= TARGET_FPE_FLTOVF
;
1474 case POWERPC_EXCP_FP_UX
:
1475 info
.si_code
= TARGET_FPE_FLTUND
;
1477 case POWERPC_EXCP_FP_ZX
:
1478 case POWERPC_EXCP_FP_VXZDZ
:
1479 info
.si_code
= TARGET_FPE_FLTDIV
;
1481 case POWERPC_EXCP_FP_XX
:
1482 info
.si_code
= TARGET_FPE_FLTRES
;
1484 case POWERPC_EXCP_FP_VXSOFT
:
1485 info
.si_code
= TARGET_FPE_FLTINV
;
1487 case POWERPC_EXCP_FP_VXSNAN
:
1488 case POWERPC_EXCP_FP_VXISI
:
1489 case POWERPC_EXCP_FP_VXIDI
:
1490 case POWERPC_EXCP_FP_VXIMZ
:
1491 case POWERPC_EXCP_FP_VXVC
:
1492 case POWERPC_EXCP_FP_VXSQRT
:
1493 case POWERPC_EXCP_FP_VXCVI
:
1494 info
.si_code
= TARGET_FPE_FLTSUB
;
1497 EXCP_DUMP(env
, "Unknown floating point exception (%02x)\n",
1502 case POWERPC_EXCP_INVAL
:
1503 info
.si_signo
= TARGET_SIGILL
;
1505 switch (env
->error_code
& 0xF) {
1506 case POWERPC_EXCP_INVAL_INVAL
:
1507 info
.si_code
= TARGET_ILL_ILLOPC
;
1509 case POWERPC_EXCP_INVAL_LSWX
:
1510 info
.si_code
= TARGET_ILL_ILLOPN
;
1512 case POWERPC_EXCP_INVAL_SPR
:
1513 info
.si_code
= TARGET_ILL_PRVREG
;
1515 case POWERPC_EXCP_INVAL_FP
:
1516 info
.si_code
= TARGET_ILL_COPROC
;
1519 EXCP_DUMP(env
, "Unknown invalid operation (%02x)\n",
1520 env
->error_code
& 0xF);
1521 info
.si_code
= TARGET_ILL_ILLADR
;
1525 case POWERPC_EXCP_PRIV
:
1526 info
.si_signo
= TARGET_SIGILL
;
1528 switch (env
->error_code
& 0xF) {
1529 case POWERPC_EXCP_PRIV_OPC
:
1530 info
.si_code
= TARGET_ILL_PRVOPC
;
1532 case POWERPC_EXCP_PRIV_REG
:
1533 info
.si_code
= TARGET_ILL_PRVREG
;
1536 EXCP_DUMP(env
, "Unknown privilege violation (%02x)\n",
1537 env
->error_code
& 0xF);
1538 info
.si_code
= TARGET_ILL_PRVOPC
;
1542 case POWERPC_EXCP_TRAP
:
1543 cpu_abort(cs
, "Tried to call a TRAP\n");
1546 /* Should not happen ! */
1547 cpu_abort(cs
, "Unknown program exception (%02x)\n",
1551 info
._sifields
._sigfault
._addr
= env
->nip
;
1552 queue_signal(env
, info
.si_signo
, QEMU_SI_FAULT
, &info
);
1554 case POWERPC_EXCP_FPU
: /* Floating-point unavailable exception */
1555 info
.si_signo
= TARGET_SIGILL
;
1557 info
.si_code
= TARGET_ILL_COPROC
;
1558 info
._sifields
._sigfault
._addr
= env
->nip
;
1559 queue_signal(env
, info
.si_signo
, QEMU_SI_FAULT
, &info
);
1561 case POWERPC_EXCP_SYSCALL
: /* System call exception */
1562 cpu_abort(cs
, "Syscall exception while in user mode. "
1565 case POWERPC_EXCP_APU
: /* Auxiliary processor unavailable */
1566 info
.si_signo
= TARGET_SIGILL
;
1568 info
.si_code
= TARGET_ILL_COPROC
;
1569 info
._sifields
._sigfault
._addr
= env
->nip
;
1570 queue_signal(env
, info
.si_signo
, QEMU_SI_FAULT
, &info
);
1572 case POWERPC_EXCP_DECR
: /* Decrementer exception */
1573 cpu_abort(cs
, "Decrementer interrupt while in user mode. "
1576 case POWERPC_EXCP_FIT
: /* Fixed-interval timer interrupt */
1577 cpu_abort(cs
, "Fix interval timer interrupt while in user mode. "
1580 case POWERPC_EXCP_WDT
: /* Watchdog timer interrupt */
1581 cpu_abort(cs
, "Watchdog timer interrupt while in user mode. "
1584 case POWERPC_EXCP_DTLB
: /* Data TLB error */
1585 cpu_abort(cs
, "Data TLB exception while in user mode. "
1588 case POWERPC_EXCP_ITLB
: /* Instruction TLB error */
1589 cpu_abort(cs
, "Instruction TLB exception while in user mode. "
1592 case POWERPC_EXCP_SPEU
: /* SPE/embedded floating-point unavail. */
1593 info
.si_signo
= TARGET_SIGILL
;
1595 info
.si_code
= TARGET_ILL_COPROC
;
1596 info
._sifields
._sigfault
._addr
= env
->nip
;
1597 queue_signal(env
, info
.si_signo
, QEMU_SI_FAULT
, &info
);
1599 case POWERPC_EXCP_EFPDI
: /* Embedded floating-point data IRQ */
1600 cpu_abort(cs
, "Embedded floating-point data IRQ not handled\n");
1602 case POWERPC_EXCP_EFPRI
: /* Embedded floating-point round IRQ */
1603 cpu_abort(cs
, "Embedded floating-point round IRQ not handled\n");
1605 case POWERPC_EXCP_EPERFM
: /* Embedded performance monitor IRQ */
1606 cpu_abort(cs
, "Performance monitor exception not handled\n");
1608 case POWERPC_EXCP_DOORI
: /* Embedded doorbell interrupt */
1609 cpu_abort(cs
, "Doorbell interrupt while in user mode. "
1612 case POWERPC_EXCP_DOORCI
: /* Embedded doorbell critical interrupt */
1613 cpu_abort(cs
, "Doorbell critical interrupt while in user mode. "
1616 case POWERPC_EXCP_RESET
: /* System reset exception */
1617 cpu_abort(cs
, "Reset interrupt while in user mode. "
1620 case POWERPC_EXCP_DSEG
: /* Data segment exception */
1621 cpu_abort(cs
, "Data segment exception while in user mode. "
1624 case POWERPC_EXCP_ISEG
: /* Instruction segment exception */
1625 cpu_abort(cs
, "Instruction segment exception "
1626 "while in user mode. Aborting\n");
1628 /* PowerPC 64 with hypervisor mode support */
1629 case POWERPC_EXCP_HDECR
: /* Hypervisor decrementer exception */
1630 cpu_abort(cs
, "Hypervisor decrementer interrupt "
1631 "while in user mode. Aborting\n");
1633 case POWERPC_EXCP_TRACE
: /* Trace exception */
1635 * we use this exception to emulate step-by-step execution mode.
1638 /* PowerPC 64 with hypervisor mode support */
1639 case POWERPC_EXCP_HDSI
: /* Hypervisor data storage exception */
1640 cpu_abort(cs
, "Hypervisor data storage exception "
1641 "while in user mode. Aborting\n");
1643 case POWERPC_EXCP_HISI
: /* Hypervisor instruction storage excp */
1644 cpu_abort(cs
, "Hypervisor instruction storage exception "
1645 "while in user mode. Aborting\n");
1647 case POWERPC_EXCP_HDSEG
: /* Hypervisor data segment exception */
1648 cpu_abort(cs
, "Hypervisor data segment exception "
1649 "while in user mode. Aborting\n");
1651 case POWERPC_EXCP_HISEG
: /* Hypervisor instruction segment excp */
1652 cpu_abort(cs
, "Hypervisor instruction segment exception "
1653 "while in user mode. Aborting\n");
1655 case POWERPC_EXCP_VPU
: /* Vector unavailable exception */
1656 info
.si_signo
= TARGET_SIGILL
;
1658 info
.si_code
= TARGET_ILL_COPROC
;
1659 info
._sifields
._sigfault
._addr
= env
->nip
;
1660 queue_signal(env
, info
.si_signo
, QEMU_SI_FAULT
, &info
);
1662 case POWERPC_EXCP_PIT
: /* Programmable interval timer IRQ */
1663 cpu_abort(cs
, "Programmable interval timer interrupt "
1664 "while in user mode. Aborting\n");
1666 case POWERPC_EXCP_IO
: /* IO error exception */
1667 cpu_abort(cs
, "IO error exception while in user mode. "
1670 case POWERPC_EXCP_RUNM
: /* Run mode exception */
1671 cpu_abort(cs
, "Run mode exception while in user mode. "
1674 case POWERPC_EXCP_EMUL
: /* Emulation trap exception */
1675 cpu_abort(cs
, "Emulation trap exception not handled\n");
1677 case POWERPC_EXCP_IFTLB
: /* Instruction fetch TLB error */
1678 cpu_abort(cs
, "Instruction fetch TLB exception "
1679 "while in user-mode. Aborting");
1681 case POWERPC_EXCP_DLTLB
: /* Data load TLB miss */
1682 cpu_abort(cs
, "Data load TLB exception while in user-mode. "
1685 case POWERPC_EXCP_DSTLB
: /* Data store TLB miss */
1686 cpu_abort(cs
, "Data store TLB exception while in user-mode. "
1689 case POWERPC_EXCP_FPA
: /* Floating-point assist exception */
1690 cpu_abort(cs
, "Floating-point assist exception not handled\n");
1692 case POWERPC_EXCP_IABR
: /* Instruction address breakpoint */
1693 cpu_abort(cs
, "Instruction address breakpoint exception "
1696 case POWERPC_EXCP_SMI
: /* System management interrupt */
1697 cpu_abort(cs
, "System management interrupt while in user mode. "
1700 case POWERPC_EXCP_THERM
: /* Thermal interrupt */
1701 cpu_abort(cs
, "Thermal interrupt interrupt while in user mode. "
1704 case POWERPC_EXCP_PERFM
: /* Embedded performance monitor IRQ */
1705 cpu_abort(cs
, "Performance monitor exception not handled\n");
1707 case POWERPC_EXCP_VPUA
: /* Vector assist exception */
1708 cpu_abort(cs
, "Vector assist exception not handled\n");
1710 case POWERPC_EXCP_SOFTP
: /* Soft patch exception */
1711 cpu_abort(cs
, "Soft patch exception not handled\n");
1713 case POWERPC_EXCP_MAINT
: /* Maintenance exception */
1714 cpu_abort(cs
, "Maintenance exception while in user mode. "
1717 case POWERPC_EXCP_STOP
: /* stop translation */
1718 /* We did invalidate the instruction cache. Go on */
1720 case POWERPC_EXCP_BRANCH
: /* branch instruction: */
1721 /* We just stopped because of a branch. Go on */
1723 case POWERPC_EXCP_SYSCALL_USER
:
1724 /* system call in user-mode emulation */
1726 * PPC ABI uses overflow flag in cr0 to signal an error
1729 env
->crf
[0] &= ~0x1;
1731 ret
= do_syscall(env
, env
->gpr
[0], env
->gpr
[3], env
->gpr
[4],
1732 env
->gpr
[5], env
->gpr
[6], env
->gpr
[7],
1734 if (ret
== -TARGET_ERESTARTSYS
) {
1738 if (ret
== (target_ulong
)(-TARGET_QEMU_ESIGRETURN
)) {
1739 /* Returning from a successful sigreturn syscall.
1740 Avoid corrupting register state. */
1743 if (ret
> (target_ulong
)(-515)) {
1749 case POWERPC_EXCP_STCX
:
1750 if (do_store_exclusive(env
)) {
1751 info
.si_signo
= TARGET_SIGSEGV
;
1753 info
.si_code
= TARGET_SEGV_MAPERR
;
1754 info
._sifields
._sigfault
._addr
= env
->nip
;
1755 queue_signal(env
, info
.si_signo
, QEMU_SI_FAULT
, &info
);
1762 sig
= gdb_handlesig(cs
, TARGET_SIGTRAP
);
1764 info
.si_signo
= sig
;
1766 info
.si_code
= TARGET_TRAP_BRKPT
;
1767 queue_signal(env
, info
.si_signo
, QEMU_SI_FAULT
, &info
);
1771 case EXCP_INTERRUPT
:
1772 /* just indicate that signals should be handled asap */
1775 cpu_exec_step_atomic(cs
);
1778 cpu_abort(cs
, "Unknown exception 0x%x. Aborting\n", trapnr
);
1781 process_pending_signals(env
);
1788 # ifdef TARGET_ABI_MIPSO32
1789 # define MIPS_SYS(name, args) args,
1790 static const uint8_t mips_syscall_args
[] = {
1791 MIPS_SYS(sys_syscall
, 8) /* 4000 */
1792 MIPS_SYS(sys_exit
, 1)
1793 MIPS_SYS(sys_fork
, 0)
1794 MIPS_SYS(sys_read
, 3)
1795 MIPS_SYS(sys_write
, 3)
1796 MIPS_SYS(sys_open
, 3) /* 4005 */
1797 MIPS_SYS(sys_close
, 1)
1798 MIPS_SYS(sys_waitpid
, 3)
1799 MIPS_SYS(sys_creat
, 2)
1800 MIPS_SYS(sys_link
, 2)
1801 MIPS_SYS(sys_unlink
, 1) /* 4010 */
1802 MIPS_SYS(sys_execve
, 0)
1803 MIPS_SYS(sys_chdir
, 1)
1804 MIPS_SYS(sys_time
, 1)
1805 MIPS_SYS(sys_mknod
, 3)
1806 MIPS_SYS(sys_chmod
, 2) /* 4015 */
1807 MIPS_SYS(sys_lchown
, 3)
1808 MIPS_SYS(sys_ni_syscall
, 0)
1809 MIPS_SYS(sys_ni_syscall
, 0) /* was sys_stat */
1810 MIPS_SYS(sys_lseek
, 3)
1811 MIPS_SYS(sys_getpid
, 0) /* 4020 */
1812 MIPS_SYS(sys_mount
, 5)
1813 MIPS_SYS(sys_umount
, 1)
1814 MIPS_SYS(sys_setuid
, 1)
1815 MIPS_SYS(sys_getuid
, 0)
1816 MIPS_SYS(sys_stime
, 1) /* 4025 */
1817 MIPS_SYS(sys_ptrace
, 4)
1818 MIPS_SYS(sys_alarm
, 1)
1819 MIPS_SYS(sys_ni_syscall
, 0) /* was sys_fstat */
1820 MIPS_SYS(sys_pause
, 0)
1821 MIPS_SYS(sys_utime
, 2) /* 4030 */
1822 MIPS_SYS(sys_ni_syscall
, 0)
1823 MIPS_SYS(sys_ni_syscall
, 0)
1824 MIPS_SYS(sys_access
, 2)
1825 MIPS_SYS(sys_nice
, 1)
1826 MIPS_SYS(sys_ni_syscall
, 0) /* 4035 */
1827 MIPS_SYS(sys_sync
, 0)
1828 MIPS_SYS(sys_kill
, 2)
1829 MIPS_SYS(sys_rename
, 2)
1830 MIPS_SYS(sys_mkdir
, 2)
1831 MIPS_SYS(sys_rmdir
, 1) /* 4040 */
1832 MIPS_SYS(sys_dup
, 1)
1833 MIPS_SYS(sys_pipe
, 0)
1834 MIPS_SYS(sys_times
, 1)
1835 MIPS_SYS(sys_ni_syscall
, 0)
1836 MIPS_SYS(sys_brk
, 1) /* 4045 */
1837 MIPS_SYS(sys_setgid
, 1)
1838 MIPS_SYS(sys_getgid
, 0)
1839 MIPS_SYS(sys_ni_syscall
, 0) /* was signal(2) */
1840 MIPS_SYS(sys_geteuid
, 0)
1841 MIPS_SYS(sys_getegid
, 0) /* 4050 */
1842 MIPS_SYS(sys_acct
, 0)
1843 MIPS_SYS(sys_umount2
, 2)
1844 MIPS_SYS(sys_ni_syscall
, 0)
1845 MIPS_SYS(sys_ioctl
, 3)
1846 MIPS_SYS(sys_fcntl
, 3) /* 4055 */
1847 MIPS_SYS(sys_ni_syscall
, 2)
1848 MIPS_SYS(sys_setpgid
, 2)
1849 MIPS_SYS(sys_ni_syscall
, 0)
1850 MIPS_SYS(sys_olduname
, 1)
1851 MIPS_SYS(sys_umask
, 1) /* 4060 */
1852 MIPS_SYS(sys_chroot
, 1)
1853 MIPS_SYS(sys_ustat
, 2)
1854 MIPS_SYS(sys_dup2
, 2)
1855 MIPS_SYS(sys_getppid
, 0)
1856 MIPS_SYS(sys_getpgrp
, 0) /* 4065 */
1857 MIPS_SYS(sys_setsid
, 0)
1858 MIPS_SYS(sys_sigaction
, 3)
1859 MIPS_SYS(sys_sgetmask
, 0)
1860 MIPS_SYS(sys_ssetmask
, 1)
1861 MIPS_SYS(sys_setreuid
, 2) /* 4070 */
1862 MIPS_SYS(sys_setregid
, 2)
1863 MIPS_SYS(sys_sigsuspend
, 0)
1864 MIPS_SYS(sys_sigpending
, 1)
1865 MIPS_SYS(sys_sethostname
, 2)
1866 MIPS_SYS(sys_setrlimit
, 2) /* 4075 */
1867 MIPS_SYS(sys_getrlimit
, 2)
1868 MIPS_SYS(sys_getrusage
, 2)
1869 MIPS_SYS(sys_gettimeofday
, 2)
1870 MIPS_SYS(sys_settimeofday
, 2)
1871 MIPS_SYS(sys_getgroups
, 2) /* 4080 */
1872 MIPS_SYS(sys_setgroups
, 2)
1873 MIPS_SYS(sys_ni_syscall
, 0) /* old_select */
1874 MIPS_SYS(sys_symlink
, 2)
1875 MIPS_SYS(sys_ni_syscall
, 0) /* was sys_lstat */
1876 MIPS_SYS(sys_readlink
, 3) /* 4085 */
1877 MIPS_SYS(sys_uselib
, 1)
1878 MIPS_SYS(sys_swapon
, 2)
1879 MIPS_SYS(sys_reboot
, 3)
1880 MIPS_SYS(old_readdir
, 3)
1881 MIPS_SYS(old_mmap
, 6) /* 4090 */
1882 MIPS_SYS(sys_munmap
, 2)
1883 MIPS_SYS(sys_truncate
, 2)
1884 MIPS_SYS(sys_ftruncate
, 2)
1885 MIPS_SYS(sys_fchmod
, 2)
1886 MIPS_SYS(sys_fchown
, 3) /* 4095 */
1887 MIPS_SYS(sys_getpriority
, 2)
1888 MIPS_SYS(sys_setpriority
, 3)
1889 MIPS_SYS(sys_ni_syscall
, 0)
1890 MIPS_SYS(sys_statfs
, 2)
1891 MIPS_SYS(sys_fstatfs
, 2) /* 4100 */
1892 MIPS_SYS(sys_ni_syscall
, 0) /* was ioperm(2) */
1893 MIPS_SYS(sys_socketcall
, 2)
1894 MIPS_SYS(sys_syslog
, 3)
1895 MIPS_SYS(sys_setitimer
, 3)
1896 MIPS_SYS(sys_getitimer
, 2) /* 4105 */
1897 MIPS_SYS(sys_newstat
, 2)
1898 MIPS_SYS(sys_newlstat
, 2)
1899 MIPS_SYS(sys_newfstat
, 2)
1900 MIPS_SYS(sys_uname
, 1)
1901 MIPS_SYS(sys_ni_syscall
, 0) /* 4110 was iopl(2) */
1902 MIPS_SYS(sys_vhangup
, 0)
1903 MIPS_SYS(sys_ni_syscall
, 0) /* was sys_idle() */
1904 MIPS_SYS(sys_ni_syscall
, 0) /* was sys_vm86 */
1905 MIPS_SYS(sys_wait4
, 4)
1906 MIPS_SYS(sys_swapoff
, 1) /* 4115 */
1907 MIPS_SYS(sys_sysinfo
, 1)
1908 MIPS_SYS(sys_ipc
, 6)
1909 MIPS_SYS(sys_fsync
, 1)
1910 MIPS_SYS(sys_sigreturn
, 0)
1911 MIPS_SYS(sys_clone
, 6) /* 4120 */
1912 MIPS_SYS(sys_setdomainname
, 2)
1913 MIPS_SYS(sys_newuname
, 1)
1914 MIPS_SYS(sys_ni_syscall
, 0) /* sys_modify_ldt */
1915 MIPS_SYS(sys_adjtimex
, 1)
1916 MIPS_SYS(sys_mprotect
, 3) /* 4125 */
1917 MIPS_SYS(sys_sigprocmask
, 3)
1918 MIPS_SYS(sys_ni_syscall
, 0) /* was create_module */
1919 MIPS_SYS(sys_init_module
, 5)
1920 MIPS_SYS(sys_delete_module
, 1)
1921 MIPS_SYS(sys_ni_syscall
, 0) /* 4130 was get_kernel_syms */
1922 MIPS_SYS(sys_quotactl
, 0)
1923 MIPS_SYS(sys_getpgid
, 1)
1924 MIPS_SYS(sys_fchdir
, 1)
1925 MIPS_SYS(sys_bdflush
, 2)
1926 MIPS_SYS(sys_sysfs
, 3) /* 4135 */
1927 MIPS_SYS(sys_personality
, 1)
1928 MIPS_SYS(sys_ni_syscall
, 0) /* for afs_syscall */
1929 MIPS_SYS(sys_setfsuid
, 1)
1930 MIPS_SYS(sys_setfsgid
, 1)
1931 MIPS_SYS(sys_llseek
, 5) /* 4140 */
1932 MIPS_SYS(sys_getdents
, 3)
1933 MIPS_SYS(sys_select
, 5)
1934 MIPS_SYS(sys_flock
, 2)
1935 MIPS_SYS(sys_msync
, 3)
1936 MIPS_SYS(sys_readv
, 3) /* 4145 */
1937 MIPS_SYS(sys_writev
, 3)
1938 MIPS_SYS(sys_cacheflush
, 3)
1939 MIPS_SYS(sys_cachectl
, 3)
1940 MIPS_SYS(sys_sysmips
, 4)
1941 MIPS_SYS(sys_ni_syscall
, 0) /* 4150 */
1942 MIPS_SYS(sys_getsid
, 1)
1943 MIPS_SYS(sys_fdatasync
, 0)
1944 MIPS_SYS(sys_sysctl
, 1)
1945 MIPS_SYS(sys_mlock
, 2)
1946 MIPS_SYS(sys_munlock
, 2) /* 4155 */
1947 MIPS_SYS(sys_mlockall
, 1)
1948 MIPS_SYS(sys_munlockall
, 0)
1949 MIPS_SYS(sys_sched_setparam
, 2)
1950 MIPS_SYS(sys_sched_getparam
, 2)
1951 MIPS_SYS(sys_sched_setscheduler
, 3) /* 4160 */
1952 MIPS_SYS(sys_sched_getscheduler
, 1)
1953 MIPS_SYS(sys_sched_yield
, 0)
1954 MIPS_SYS(sys_sched_get_priority_max
, 1)
1955 MIPS_SYS(sys_sched_get_priority_min
, 1)
1956 MIPS_SYS(sys_sched_rr_get_interval
, 2) /* 4165 */
1957 MIPS_SYS(sys_nanosleep
, 2)
1958 MIPS_SYS(sys_mremap
, 5)
1959 MIPS_SYS(sys_accept
, 3)
1960 MIPS_SYS(sys_bind
, 3)
1961 MIPS_SYS(sys_connect
, 3) /* 4170 */
1962 MIPS_SYS(sys_getpeername
, 3)
1963 MIPS_SYS(sys_getsockname
, 3)
1964 MIPS_SYS(sys_getsockopt
, 5)
1965 MIPS_SYS(sys_listen
, 2)
1966 MIPS_SYS(sys_recv
, 4) /* 4175 */
1967 MIPS_SYS(sys_recvfrom
, 6)
1968 MIPS_SYS(sys_recvmsg
, 3)
1969 MIPS_SYS(sys_send
, 4)
1970 MIPS_SYS(sys_sendmsg
, 3)
1971 MIPS_SYS(sys_sendto
, 6) /* 4180 */
1972 MIPS_SYS(sys_setsockopt
, 5)
1973 MIPS_SYS(sys_shutdown
, 2)
1974 MIPS_SYS(sys_socket
, 3)
1975 MIPS_SYS(sys_socketpair
, 4)
1976 MIPS_SYS(sys_setresuid
, 3) /* 4185 */
1977 MIPS_SYS(sys_getresuid
, 3)
1978 MIPS_SYS(sys_ni_syscall
, 0) /* was sys_query_module */
1979 MIPS_SYS(sys_poll
, 3)
1980 MIPS_SYS(sys_nfsservctl
, 3)
1981 MIPS_SYS(sys_setresgid
, 3) /* 4190 */
1982 MIPS_SYS(sys_getresgid
, 3)
1983 MIPS_SYS(sys_prctl
, 5)
1984 MIPS_SYS(sys_rt_sigreturn
, 0)
1985 MIPS_SYS(sys_rt_sigaction
, 4)
1986 MIPS_SYS(sys_rt_sigprocmask
, 4) /* 4195 */
1987 MIPS_SYS(sys_rt_sigpending
, 2)
1988 MIPS_SYS(sys_rt_sigtimedwait
, 4)
1989 MIPS_SYS(sys_rt_sigqueueinfo
, 3)
1990 MIPS_SYS(sys_rt_sigsuspend
, 0)
1991 MIPS_SYS(sys_pread64
, 6) /* 4200 */
1992 MIPS_SYS(sys_pwrite64
, 6)
1993 MIPS_SYS(sys_chown
, 3)
1994 MIPS_SYS(sys_getcwd
, 2)
1995 MIPS_SYS(sys_capget
, 2)
1996 MIPS_SYS(sys_capset
, 2) /* 4205 */
1997 MIPS_SYS(sys_sigaltstack
, 2)
1998 MIPS_SYS(sys_sendfile
, 4)
1999 MIPS_SYS(sys_ni_syscall
, 0)
2000 MIPS_SYS(sys_ni_syscall
, 0)
2001 MIPS_SYS(sys_mmap2
, 6) /* 4210 */
2002 MIPS_SYS(sys_truncate64
, 4)
2003 MIPS_SYS(sys_ftruncate64
, 4)
2004 MIPS_SYS(sys_stat64
, 2)
2005 MIPS_SYS(sys_lstat64
, 2)
2006 MIPS_SYS(sys_fstat64
, 2) /* 4215 */
2007 MIPS_SYS(sys_pivot_root
, 2)
2008 MIPS_SYS(sys_mincore
, 3)
2009 MIPS_SYS(sys_madvise
, 3)
2010 MIPS_SYS(sys_getdents64
, 3)
2011 MIPS_SYS(sys_fcntl64
, 3) /* 4220 */
2012 MIPS_SYS(sys_ni_syscall
, 0)
2013 MIPS_SYS(sys_gettid
, 0)
2014 MIPS_SYS(sys_readahead
, 5)
2015 MIPS_SYS(sys_setxattr
, 5)
2016 MIPS_SYS(sys_lsetxattr
, 5) /* 4225 */
2017 MIPS_SYS(sys_fsetxattr
, 5)
2018 MIPS_SYS(sys_getxattr
, 4)
2019 MIPS_SYS(sys_lgetxattr
, 4)
2020 MIPS_SYS(sys_fgetxattr
, 4)
2021 MIPS_SYS(sys_listxattr
, 3) /* 4230 */
2022 MIPS_SYS(sys_llistxattr
, 3)
2023 MIPS_SYS(sys_flistxattr
, 3)
2024 MIPS_SYS(sys_removexattr
, 2)
2025 MIPS_SYS(sys_lremovexattr
, 2)
2026 MIPS_SYS(sys_fremovexattr
, 2) /* 4235 */
2027 MIPS_SYS(sys_tkill
, 2)
2028 MIPS_SYS(sys_sendfile64
, 5)
2029 MIPS_SYS(sys_futex
, 6)
2030 MIPS_SYS(sys_sched_setaffinity
, 3)
2031 MIPS_SYS(sys_sched_getaffinity
, 3) /* 4240 */
2032 MIPS_SYS(sys_io_setup
, 2)
2033 MIPS_SYS(sys_io_destroy
, 1)
2034 MIPS_SYS(sys_io_getevents
, 5)
2035 MIPS_SYS(sys_io_submit
, 3)
2036 MIPS_SYS(sys_io_cancel
, 3) /* 4245 */
2037 MIPS_SYS(sys_exit_group
, 1)
2038 MIPS_SYS(sys_lookup_dcookie
, 3)
2039 MIPS_SYS(sys_epoll_create
, 1)
2040 MIPS_SYS(sys_epoll_ctl
, 4)
2041 MIPS_SYS(sys_epoll_wait
, 3) /* 4250 */
2042 MIPS_SYS(sys_remap_file_pages
, 5)
2043 MIPS_SYS(sys_set_tid_address
, 1)
2044 MIPS_SYS(sys_restart_syscall
, 0)
2045 MIPS_SYS(sys_fadvise64_64
, 7)
2046 MIPS_SYS(sys_statfs64
, 3) /* 4255 */
2047 MIPS_SYS(sys_fstatfs64
, 2)
2048 MIPS_SYS(sys_timer_create
, 3)
2049 MIPS_SYS(sys_timer_settime
, 4)
2050 MIPS_SYS(sys_timer_gettime
, 2)
2051 MIPS_SYS(sys_timer_getoverrun
, 1) /* 4260 */
2052 MIPS_SYS(sys_timer_delete
, 1)
2053 MIPS_SYS(sys_clock_settime
, 2)
2054 MIPS_SYS(sys_clock_gettime
, 2)
2055 MIPS_SYS(sys_clock_getres
, 2)
2056 MIPS_SYS(sys_clock_nanosleep
, 4) /* 4265 */
2057 MIPS_SYS(sys_tgkill
, 3)
2058 MIPS_SYS(sys_utimes
, 2)
2059 MIPS_SYS(sys_mbind
, 4)
2060 MIPS_SYS(sys_ni_syscall
, 0) /* sys_get_mempolicy */
2061 MIPS_SYS(sys_ni_syscall
, 0) /* 4270 sys_set_mempolicy */
2062 MIPS_SYS(sys_mq_open
, 4)
2063 MIPS_SYS(sys_mq_unlink
, 1)
2064 MIPS_SYS(sys_mq_timedsend
, 5)
2065 MIPS_SYS(sys_mq_timedreceive
, 5)
2066 MIPS_SYS(sys_mq_notify
, 2) /* 4275 */
2067 MIPS_SYS(sys_mq_getsetattr
, 3)
2068 MIPS_SYS(sys_ni_syscall
, 0) /* sys_vserver */
2069 MIPS_SYS(sys_waitid
, 4)
2070 MIPS_SYS(sys_ni_syscall
, 0) /* available, was setaltroot */
2071 MIPS_SYS(sys_add_key
, 5)
2072 MIPS_SYS(sys_request_key
, 4)
2073 MIPS_SYS(sys_keyctl
, 5)
2074 MIPS_SYS(sys_set_thread_area
, 1)
2075 MIPS_SYS(sys_inotify_init
, 0)
2076 MIPS_SYS(sys_inotify_add_watch
, 3) /* 4285 */
2077 MIPS_SYS(sys_inotify_rm_watch
, 2)
2078 MIPS_SYS(sys_migrate_pages
, 4)
2079 MIPS_SYS(sys_openat
, 4)
2080 MIPS_SYS(sys_mkdirat
, 3)
2081 MIPS_SYS(sys_mknodat
, 4) /* 4290 */
2082 MIPS_SYS(sys_fchownat
, 5)
2083 MIPS_SYS(sys_futimesat
, 3)
2084 MIPS_SYS(sys_fstatat64
, 4)
2085 MIPS_SYS(sys_unlinkat
, 3)
2086 MIPS_SYS(sys_renameat
, 4) /* 4295 */
2087 MIPS_SYS(sys_linkat
, 5)
2088 MIPS_SYS(sys_symlinkat
, 3)
2089 MIPS_SYS(sys_readlinkat
, 4)
2090 MIPS_SYS(sys_fchmodat
, 3)
2091 MIPS_SYS(sys_faccessat
, 3) /* 4300 */
2092 MIPS_SYS(sys_pselect6
, 6)
2093 MIPS_SYS(sys_ppoll
, 5)
2094 MIPS_SYS(sys_unshare
, 1)
2095 MIPS_SYS(sys_splice
, 6)
2096 MIPS_SYS(sys_sync_file_range
, 7) /* 4305 */
2097 MIPS_SYS(sys_tee
, 4)
2098 MIPS_SYS(sys_vmsplice
, 4)
2099 MIPS_SYS(sys_move_pages
, 6)
2100 MIPS_SYS(sys_set_robust_list
, 2)
2101 MIPS_SYS(sys_get_robust_list
, 3) /* 4310 */
2102 MIPS_SYS(sys_kexec_load
, 4)
2103 MIPS_SYS(sys_getcpu
, 3)
2104 MIPS_SYS(sys_epoll_pwait
, 6)
2105 MIPS_SYS(sys_ioprio_set
, 3)
2106 MIPS_SYS(sys_ioprio_get
, 2)
2107 MIPS_SYS(sys_utimensat
, 4)
2108 MIPS_SYS(sys_signalfd
, 3)
2109 MIPS_SYS(sys_ni_syscall
, 0) /* was timerfd */
2110 MIPS_SYS(sys_eventfd
, 1)
2111 MIPS_SYS(sys_fallocate
, 6) /* 4320 */
2112 MIPS_SYS(sys_timerfd_create
, 2)
2113 MIPS_SYS(sys_timerfd_gettime
, 2)
2114 MIPS_SYS(sys_timerfd_settime
, 4)
2115 MIPS_SYS(sys_signalfd4
, 4)
2116 MIPS_SYS(sys_eventfd2
, 2) /* 4325 */
2117 MIPS_SYS(sys_epoll_create1
, 1)
2118 MIPS_SYS(sys_dup3
, 3)
2119 MIPS_SYS(sys_pipe2
, 2)
2120 MIPS_SYS(sys_inotify_init1
, 1)
2121 MIPS_SYS(sys_preadv
, 5) /* 4330 */
2122 MIPS_SYS(sys_pwritev
, 5)
2123 MIPS_SYS(sys_rt_tgsigqueueinfo
, 4)
2124 MIPS_SYS(sys_perf_event_open
, 5)
2125 MIPS_SYS(sys_accept4
, 4)
2126 MIPS_SYS(sys_recvmmsg
, 5) /* 4335 */
2127 MIPS_SYS(sys_fanotify_init
, 2)
2128 MIPS_SYS(sys_fanotify_mark
, 6)
2129 MIPS_SYS(sys_prlimit64
, 4)
2130 MIPS_SYS(sys_name_to_handle_at
, 5)
2131 MIPS_SYS(sys_open_by_handle_at
, 3) /* 4340 */
2132 MIPS_SYS(sys_clock_adjtime
, 2)
2133 MIPS_SYS(sys_syncfs
, 1)
2134 MIPS_SYS(sys_sendmmsg
, 4)
2135 MIPS_SYS(sys_setns
, 2)
2136 MIPS_SYS(sys_process_vm_readv
, 6) /* 345 */
2137 MIPS_SYS(sys_process_vm_writev
, 6)
2138 MIPS_SYS(sys_kcmp
, 5)
2139 MIPS_SYS(sys_finit_module
, 3)
2140 MIPS_SYS(sys_sched_setattr
, 2)
2141 MIPS_SYS(sys_sched_getattr
, 3) /* 350 */
2142 MIPS_SYS(sys_renameat2
, 5)
2143 MIPS_SYS(sys_seccomp
, 3)
2144 MIPS_SYS(sys_getrandom
, 3)
2145 MIPS_SYS(sys_memfd_create
, 2)
2146 MIPS_SYS(sys_bpf
, 3) /* 355 */
2147 MIPS_SYS(sys_execveat
, 5)
2148 MIPS_SYS(sys_userfaultfd
, 1)
2149 MIPS_SYS(sys_membarrier
, 2)
2150 MIPS_SYS(sys_mlock2
, 3)
2151 MIPS_SYS(sys_copy_file_range
, 6) /* 360 */
2152 MIPS_SYS(sys_preadv2
, 6)
2153 MIPS_SYS(sys_pwritev2
, 6)
2158 static int do_store_exclusive(CPUMIPSState
*env
)
2161 target_ulong page_addr
;
2169 page_addr
= addr
& TARGET_PAGE_MASK
;
2172 flags
= page_get_flags(page_addr
);
2173 if ((flags
& PAGE_READ
) == 0) {
2176 reg
= env
->llreg
& 0x1f;
2177 d
= (env
->llreg
& 0x20) != 0;
2179 segv
= get_user_s64(val
, addr
);
2181 segv
= get_user_s32(val
, addr
);
2184 if (val
!= env
->llval
) {
2185 env
->active_tc
.gpr
[reg
] = 0;
2188 segv
= put_user_u64(env
->llnewval
, addr
);
2190 segv
= put_user_u32(env
->llnewval
, addr
);
2193 env
->active_tc
.gpr
[reg
] = 1;
2200 env
->active_tc
.PC
+= 4;
2213 static int do_break(CPUMIPSState
*env
, target_siginfo_t
*info
,
2221 info
->si_signo
= TARGET_SIGFPE
;
2223 info
->si_code
= (code
== BRK_OVERFLOW
) ? FPE_INTOVF
: FPE_INTDIV
;
2224 queue_signal(env
, info
->si_signo
, QEMU_SI_FAULT
, &*info
);
2228 info
->si_signo
= TARGET_SIGTRAP
;
2230 queue_signal(env
, info
->si_signo
, QEMU_SI_FAULT
, &*info
);
2238 void cpu_loop(CPUMIPSState
*env
)
2240 CPUState
*cs
= CPU(mips_env_get_cpu(env
));
2241 target_siginfo_t info
;
2244 # ifdef TARGET_ABI_MIPSO32
2245 unsigned int syscall_num
;
2250 trapnr
= cpu_exec(cs
);
2252 process_queued_cpu_work(cs
);
2256 env
->active_tc
.PC
+= 4;
2257 # ifdef TARGET_ABI_MIPSO32
2258 syscall_num
= env
->active_tc
.gpr
[2] - 4000;
2259 if (syscall_num
>= sizeof(mips_syscall_args
)) {
2260 ret
= -TARGET_ENOSYS
;
2264 abi_ulong arg5
= 0, arg6
= 0, arg7
= 0, arg8
= 0;
2266 nb_args
= mips_syscall_args
[syscall_num
];
2267 sp_reg
= env
->active_tc
.gpr
[29];
2269 /* these arguments are taken from the stack */
2271 if ((ret
= get_user_ual(arg8
, sp_reg
+ 28)) != 0) {
2275 if ((ret
= get_user_ual(arg7
, sp_reg
+ 24)) != 0) {
2279 if ((ret
= get_user_ual(arg6
, sp_reg
+ 20)) != 0) {
2283 if ((ret
= get_user_ual(arg5
, sp_reg
+ 16)) != 0) {
2289 ret
= do_syscall(env
, env
->active_tc
.gpr
[2],
2290 env
->active_tc
.gpr
[4],
2291 env
->active_tc
.gpr
[5],
2292 env
->active_tc
.gpr
[6],
2293 env
->active_tc
.gpr
[7],
2294 arg5
, arg6
, arg7
, arg8
);
2298 ret
= do_syscall(env
, env
->active_tc
.gpr
[2],
2299 env
->active_tc
.gpr
[4], env
->active_tc
.gpr
[5],
2300 env
->active_tc
.gpr
[6], env
->active_tc
.gpr
[7],
2301 env
->active_tc
.gpr
[8], env
->active_tc
.gpr
[9],
2302 env
->active_tc
.gpr
[10], env
->active_tc
.gpr
[11]);
2304 if (ret
== -TARGET_ERESTARTSYS
) {
2305 env
->active_tc
.PC
-= 4;
2308 if (ret
== -TARGET_QEMU_ESIGRETURN
) {
2309 /* Returning from a successful sigreturn syscall.
2310 Avoid clobbering register state. */
2313 if ((abi_ulong
)ret
>= (abi_ulong
)-1133) {
2314 env
->active_tc
.gpr
[7] = 1; /* error flag */
2317 env
->active_tc
.gpr
[7] = 0; /* error flag */
2319 env
->active_tc
.gpr
[2] = ret
;
2325 info
.si_signo
= TARGET_SIGSEGV
;
2327 /* XXX: check env->error_code */
2328 info
.si_code
= TARGET_SEGV_MAPERR
;
2329 info
._sifields
._sigfault
._addr
= env
->CP0_BadVAddr
;
2330 queue_signal(env
, info
.si_signo
, QEMU_SI_FAULT
, &info
);
2334 info
.si_signo
= TARGET_SIGILL
;
2337 queue_signal(env
, info
.si_signo
, QEMU_SI_FAULT
, &info
);
2339 case EXCP_INTERRUPT
:
2340 /* just indicate that signals should be handled asap */
2346 sig
= gdb_handlesig(cs
, TARGET_SIGTRAP
);
2349 info
.si_signo
= sig
;
2351 info
.si_code
= TARGET_TRAP_BRKPT
;
2352 queue_signal(env
, info
.si_signo
, QEMU_SI_FAULT
, &info
);
2357 if (do_store_exclusive(env
)) {
2358 info
.si_signo
= TARGET_SIGSEGV
;
2360 info
.si_code
= TARGET_SEGV_MAPERR
;
2361 info
._sifields
._sigfault
._addr
= env
->active_tc
.PC
;
2362 queue_signal(env
, info
.si_signo
, QEMU_SI_FAULT
, &info
);
2366 info
.si_signo
= TARGET_SIGILL
;
2368 info
.si_code
= TARGET_ILL_ILLOPC
;
2369 queue_signal(env
, info
.si_signo
, QEMU_SI_FAULT
, &info
);
2371 /* The code below was inspired by the MIPS Linux kernel trap
2372 * handling code in arch/mips/kernel/traps.c.
2376 abi_ulong trap_instr
;
2379 if (env
->hflags
& MIPS_HFLAG_M16
) {
2380 if (env
->insn_flags
& ASE_MICROMIPS
) {
2381 /* microMIPS mode */
2382 ret
= get_user_u16(trap_instr
, env
->active_tc
.PC
);
2387 if ((trap_instr
>> 10) == 0x11) {
2388 /* 16-bit instruction */
2389 code
= trap_instr
& 0xf;
2391 /* 32-bit instruction */
2394 ret
= get_user_u16(instr_lo
,
2395 env
->active_tc
.PC
+ 2);
2399 trap_instr
= (trap_instr
<< 16) | instr_lo
;
2400 code
= ((trap_instr
>> 6) & ((1 << 20) - 1));
2401 /* Unfortunately, microMIPS also suffers from
2402 the old assembler bug... */
2403 if (code
>= (1 << 10)) {
2409 ret
= get_user_u16(trap_instr
, env
->active_tc
.PC
);
2413 code
= (trap_instr
>> 6) & 0x3f;
2416 ret
= get_user_u32(trap_instr
, env
->active_tc
.PC
);
2421 /* As described in the original Linux kernel code, the
2422 * below checks on 'code' are to work around an old
2425 code
= ((trap_instr
>> 6) & ((1 << 20) - 1));
2426 if (code
>= (1 << 10)) {
2431 if (do_break(env
, &info
, code
) != 0) {
2438 abi_ulong trap_instr
;
2439 unsigned int code
= 0;
2441 if (env
->hflags
& MIPS_HFLAG_M16
) {
2442 /* microMIPS mode */
2445 ret
= get_user_u16(instr
[0], env
->active_tc
.PC
) ||
2446 get_user_u16(instr
[1], env
->active_tc
.PC
+ 2);
2448 trap_instr
= (instr
[0] << 16) | instr
[1];
2450 ret
= get_user_u32(trap_instr
, env
->active_tc
.PC
);
2457 /* The immediate versions don't provide a code. */
2458 if (!(trap_instr
& 0xFC000000)) {
2459 if (env
->hflags
& MIPS_HFLAG_M16
) {
2460 /* microMIPS mode */
2461 code
= ((trap_instr
>> 12) & ((1 << 4) - 1));
2463 code
= ((trap_instr
>> 6) & ((1 << 10) - 1));
2467 if (do_break(env
, &info
, code
) != 0) {
2473 cpu_exec_step_atomic(cs
);
2477 EXCP_DUMP(env
, "qemu: unhandled CPU exception 0x%x - aborting\n", trapnr
);
2480 process_pending_signals(env
);
2487 void cpu_loop(CPUNios2State
*env
)
2489 CPUState
*cs
= ENV_GET_CPU(env
);
2490 Nios2CPU
*cpu
= NIOS2_CPU(cs
);
2491 target_siginfo_t info
;
2492 int trapnr
, gdbsig
, ret
;
2496 trapnr
= cpu_exec(cs
);
2501 case EXCP_INTERRUPT
:
2502 /* just indicate that signals should be handled asap */
2505 if (env
->regs
[R_AT
] == 0) {
2507 qemu_log_mask(CPU_LOG_INT
, "\nSyscall\n");
2509 ret
= do_syscall(env
, env
->regs
[2],
2510 env
->regs
[4], env
->regs
[5], env
->regs
[6],
2511 env
->regs
[7], env
->regs
[8], env
->regs
[9],
2514 if (env
->regs
[2] == 0) { /* FIXME: syscall 0 workaround */
2518 env
->regs
[2] = abs(ret
);
2519 /* Return value is 0..4096 */
2520 env
->regs
[7] = (ret
> 0xfffffffffffff000ULL
);
2521 env
->regs
[CR_ESTATUS
] = env
->regs
[CR_STATUS
];
2522 env
->regs
[CR_STATUS
] &= ~0x3;
2523 env
->regs
[R_EA
] = env
->regs
[R_PC
] + 4;
2524 env
->regs
[R_PC
] += 4;
2527 qemu_log_mask(CPU_LOG_INT
, "\nTrap\n");
2529 env
->regs
[CR_ESTATUS
] = env
->regs
[CR_STATUS
];
2530 env
->regs
[CR_STATUS
] &= ~0x3;
2531 env
->regs
[R_EA
] = env
->regs
[R_PC
] + 4;
2532 env
->regs
[R_PC
] = cpu
->exception_addr
;
2534 gdbsig
= TARGET_SIGTRAP
;
2538 switch (env
->regs
[R_PC
]) {
2539 /*case 0x1000:*/ /* TODO:__kuser_helper_version */
2540 case 0x1004: /* __kuser_cmpxchg */
2542 if (env
->regs
[4] & 0x3) {
2545 ret
= get_user_u32(env
->regs
[2], env
->regs
[4]);
2550 env
->regs
[2] -= env
->regs
[5];
2551 if (env
->regs
[2] == 0) {
2552 put_user_u32(env
->regs
[6], env
->regs
[4]);
2555 env
->regs
[R_PC
] = env
->regs
[R_RA
];
2557 /*case 0x1040:*/ /* TODO:__kuser_sigtramp */
2561 info
.si_signo
= TARGET_SIGSEGV
;
2563 /* TODO: check env->error_code */
2564 info
.si_code
= TARGET_SEGV_MAPERR
;
2565 info
._sifields
._sigfault
._addr
= env
->regs
[R_PC
];
2566 queue_signal(env
, info
.si_signo
, QEMU_SI_FAULT
, &info
);
2570 EXCP_DUMP(env
, "\nqemu: unhandled CPU exception %#x - aborting\n",
2572 gdbsig
= TARGET_SIGILL
;
2576 gdb_handlesig(cs
, gdbsig
);
2577 if (gdbsig
!= TARGET_SIGTRAP
) {
2582 process_pending_signals(env
);
2586 #endif /* TARGET_NIOS2 */
2588 #ifdef TARGET_OPENRISC
2590 void cpu_loop(CPUOpenRISCState
*env
)
2592 CPUState
*cs
= CPU(openrisc_env_get_cpu(env
));
2595 target_siginfo_t info
;
2599 trapnr
= cpu_exec(cs
);
2601 process_queued_cpu_work(cs
);
2605 env
->pc
+= 4; /* 0xc00; */
2606 ret
= do_syscall(env
,
2607 cpu_get_gpr(env
, 11), /* return value */
2608 cpu_get_gpr(env
, 3), /* r3 - r7 are params */
2609 cpu_get_gpr(env
, 4),
2610 cpu_get_gpr(env
, 5),
2611 cpu_get_gpr(env
, 6),
2612 cpu_get_gpr(env
, 7),
2613 cpu_get_gpr(env
, 8), 0, 0);
2614 if (ret
== -TARGET_ERESTARTSYS
) {
2616 } else if (ret
!= -TARGET_QEMU_ESIGRETURN
) {
2617 cpu_set_gpr(env
, 11, ret
);
2623 info
.si_signo
= TARGET_SIGSEGV
;
2625 info
.si_code
= TARGET_SEGV_MAPERR
;
2626 info
._sifields
._sigfault
._addr
= env
->pc
;
2627 queue_signal(env
, info
.si_signo
, QEMU_SI_FAULT
, &info
);
2630 info
.si_signo
= TARGET_SIGBUS
;
2632 info
.si_code
= TARGET_BUS_ADRALN
;
2633 info
._sifields
._sigfault
._addr
= env
->pc
;
2634 queue_signal(env
, info
.si_signo
, QEMU_SI_FAULT
, &info
);
2637 info
.si_signo
= TARGET_SIGILL
;
2639 info
.si_code
= TARGET_ILL_ILLOPC
;
2640 info
._sifields
._sigfault
._addr
= env
->pc
;
2641 queue_signal(env
, info
.si_signo
, QEMU_SI_FAULT
, &info
);
2644 info
.si_signo
= TARGET_SIGFPE
;
2647 info
._sifields
._sigfault
._addr
= env
->pc
;
2648 queue_signal(env
, info
.si_signo
, QEMU_SI_FAULT
, &info
);
2650 case EXCP_INTERRUPT
:
2651 /* We processed the pending cpu work above. */
2654 trapnr
= gdb_handlesig(cs
, TARGET_SIGTRAP
);
2656 info
.si_signo
= trapnr
;
2658 info
.si_code
= TARGET_TRAP_BRKPT
;
2659 queue_signal(env
, info
.si_signo
, QEMU_SI_FAULT
, &info
);
2663 cpu_exec_step_atomic(cs
);
2666 g_assert_not_reached();
2668 process_pending_signals(env
);
2672 #endif /* TARGET_OPENRISC */
2675 void cpu_loop(CPUSH4State
*env
)
2677 CPUState
*cs
= CPU(sh_env_get_cpu(env
));
2679 target_siginfo_t info
;
2682 bool arch_interrupt
= true;
2685 trapnr
= cpu_exec(cs
);
2687 process_queued_cpu_work(cs
);
2692 ret
= do_syscall(env
,
2701 if (ret
== -TARGET_ERESTARTSYS
) {
2703 } else if (ret
!= -TARGET_QEMU_ESIGRETURN
) {
2704 env
->gregs
[0] = ret
;
2707 case EXCP_INTERRUPT
:
2708 /* just indicate that signals should be handled asap */
2714 sig
= gdb_handlesig(cs
, TARGET_SIGTRAP
);
2716 info
.si_signo
= sig
;
2718 info
.si_code
= TARGET_TRAP_BRKPT
;
2719 queue_signal(env
, info
.si_signo
, QEMU_SI_FAULT
, &info
);
2721 arch_interrupt
= false;
2727 info
.si_signo
= TARGET_SIGSEGV
;
2729 info
.si_code
= TARGET_SEGV_MAPERR
;
2730 info
._sifields
._sigfault
._addr
= env
->tea
;
2731 queue_signal(env
, info
.si_signo
, QEMU_SI_FAULT
, &info
);
2734 cpu_exec_step_atomic(cs
);
2735 arch_interrupt
= false;
2738 printf ("Unhandled trap: 0x%x\n", trapnr
);
2739 cpu_dump_state(cs
, stderr
, fprintf
, 0);
2742 process_pending_signals (env
);
2744 /* Most of the traps imply an exception or interrupt, which
2745 implies an REI instruction has been executed. Which means
2746 that LDST (aka LOK_ADDR) should be cleared. But there are
2747 a few exceptions for traps internal to QEMU. */
2748 if (arch_interrupt
) {
2749 env
->lock_addr
= -1;
2756 void cpu_loop(CPUCRISState
*env
)
2758 CPUState
*cs
= CPU(cris_env_get_cpu(env
));
2760 target_siginfo_t info
;
2764 trapnr
= cpu_exec(cs
);
2766 process_queued_cpu_work(cs
);
2771 info
.si_signo
= TARGET_SIGSEGV
;
2773 /* XXX: check env->error_code */
2774 info
.si_code
= TARGET_SEGV_MAPERR
;
2775 info
._sifields
._sigfault
._addr
= env
->pregs
[PR_EDA
];
2776 queue_signal(env
, info
.si_signo
, QEMU_SI_FAULT
, &info
);
2779 case EXCP_INTERRUPT
:
2780 /* just indicate that signals should be handled asap */
2783 ret
= do_syscall(env
,
2792 if (ret
== -TARGET_ERESTARTSYS
) {
2794 } else if (ret
!= -TARGET_QEMU_ESIGRETURN
) {
2795 env
->regs
[10] = ret
;
2802 sig
= gdb_handlesig(cs
, TARGET_SIGTRAP
);
2805 info
.si_signo
= sig
;
2807 info
.si_code
= TARGET_TRAP_BRKPT
;
2808 queue_signal(env
, info
.si_signo
, QEMU_SI_FAULT
, &info
);
2813 cpu_exec_step_atomic(cs
);
2816 printf ("Unhandled trap: 0x%x\n", trapnr
);
2817 cpu_dump_state(cs
, stderr
, fprintf
, 0);
2820 process_pending_signals (env
);
2825 #ifdef TARGET_MICROBLAZE
2826 void cpu_loop(CPUMBState
*env
)
2828 CPUState
*cs
= CPU(mb_env_get_cpu(env
));
2830 target_siginfo_t info
;
2834 trapnr
= cpu_exec(cs
);
2836 process_queued_cpu_work(cs
);
2841 info
.si_signo
= TARGET_SIGSEGV
;
2843 /* XXX: check env->error_code */
2844 info
.si_code
= TARGET_SEGV_MAPERR
;
2845 info
._sifields
._sigfault
._addr
= 0;
2846 queue_signal(env
, info
.si_signo
, QEMU_SI_FAULT
, &info
);
2849 case EXCP_INTERRUPT
:
2850 /* just indicate that signals should be handled asap */
2853 /* Return address is 4 bytes after the call. */
2855 env
->sregs
[SR_PC
] = env
->regs
[14];
2856 ret
= do_syscall(env
,
2865 if (ret
== -TARGET_ERESTARTSYS
) {
2866 /* Wind back to before the syscall. */
2867 env
->sregs
[SR_PC
] -= 4;
2868 } else if (ret
!= -TARGET_QEMU_ESIGRETURN
) {
2871 /* All syscall exits result in guest r14 being equal to the
2872 * PC we return to, because the kernel syscall exit "rtbd" does
2873 * this. (This is true even for sigreturn(); note that r14 is
2874 * not a userspace-usable register, as the kernel may clobber it
2877 env
->regs
[14] = env
->sregs
[SR_PC
];
2880 env
->regs
[17] = env
->sregs
[SR_PC
] + 4;
2881 if (env
->iflags
& D_FLAG
) {
2882 env
->sregs
[SR_ESR
] |= 1 << 12;
2883 env
->sregs
[SR_PC
] -= 4;
2884 /* FIXME: if branch was immed, replay the imm as well. */
2887 env
->iflags
&= ~(IMM_FLAG
| D_FLAG
);
2889 switch (env
->sregs
[SR_ESR
] & 31) {
2890 case ESR_EC_DIVZERO
:
2891 info
.si_signo
= TARGET_SIGFPE
;
2893 info
.si_code
= TARGET_FPE_FLTDIV
;
2894 info
._sifields
._sigfault
._addr
= 0;
2895 queue_signal(env
, info
.si_signo
, QEMU_SI_FAULT
, &info
);
2898 info
.si_signo
= TARGET_SIGFPE
;
2900 if (env
->sregs
[SR_FSR
] & FSR_IO
) {
2901 info
.si_code
= TARGET_FPE_FLTINV
;
2903 if (env
->sregs
[SR_FSR
] & FSR_DZ
) {
2904 info
.si_code
= TARGET_FPE_FLTDIV
;
2906 info
._sifields
._sigfault
._addr
= 0;
2907 queue_signal(env
, info
.si_signo
, QEMU_SI_FAULT
, &info
);
2910 printf ("Unhandled hw-exception: 0x%x\n",
2911 env
->sregs
[SR_ESR
] & ESR_EC_MASK
);
2912 cpu_dump_state(cs
, stderr
, fprintf
, 0);
2921 sig
= gdb_handlesig(cs
, TARGET_SIGTRAP
);
2924 info
.si_signo
= sig
;
2926 info
.si_code
= TARGET_TRAP_BRKPT
;
2927 queue_signal(env
, info
.si_signo
, QEMU_SI_FAULT
, &info
);
2932 cpu_exec_step_atomic(cs
);
2935 printf ("Unhandled trap: 0x%x\n", trapnr
);
2936 cpu_dump_state(cs
, stderr
, fprintf
, 0);
2939 process_pending_signals (env
);
2946 void cpu_loop(CPUM68KState
*env
)
2948 CPUState
*cs
= CPU(m68k_env_get_cpu(env
));
2951 target_siginfo_t info
;
2952 TaskState
*ts
= cs
->opaque
;
2956 trapnr
= cpu_exec(cs
);
2958 process_queued_cpu_work(cs
);
2963 if (ts
->sim_syscalls
) {
2965 get_user_u16(nr
, env
->pc
+ 2);
2967 do_m68k_simcall(env
, nr
);
2973 case EXCP_HALT_INSN
:
2974 /* Semihosing syscall. */
2976 do_m68k_semihosting(env
, env
->dregs
[0]);
2980 case EXCP_UNSUPPORTED
:
2982 info
.si_signo
= TARGET_SIGILL
;
2984 info
.si_code
= TARGET_ILL_ILLOPN
;
2985 info
._sifields
._sigfault
._addr
= env
->pc
;
2986 queue_signal(env
, info
.si_signo
, QEMU_SI_FAULT
, &info
);
2989 info
.si_signo
= TARGET_SIGFPE
;
2991 info
.si_code
= TARGET_FPE_INTDIV
;
2992 info
._sifields
._sigfault
._addr
= env
->pc
;
2993 queue_signal(env
, info
.si_signo
, QEMU_SI_FAULT
, &info
);
2998 ts
->sim_syscalls
= 0;
3001 ret
= do_syscall(env
,
3010 if (ret
== -TARGET_ERESTARTSYS
) {
3012 } else if (ret
!= -TARGET_QEMU_ESIGRETURN
) {
3013 env
->dregs
[0] = ret
;
3017 case EXCP_INTERRUPT
:
3018 /* just indicate that signals should be handled asap */
3022 info
.si_signo
= TARGET_SIGSEGV
;
3024 /* XXX: check env->error_code */
3025 info
.si_code
= TARGET_SEGV_MAPERR
;
3026 info
._sifields
._sigfault
._addr
= env
->mmu
.ar
;
3027 queue_signal(env
, info
.si_signo
, QEMU_SI_FAULT
, &info
);
3034 sig
= gdb_handlesig(cs
, TARGET_SIGTRAP
);
3037 info
.si_signo
= sig
;
3039 info
.si_code
= TARGET_TRAP_BRKPT
;
3040 queue_signal(env
, info
.si_signo
, QEMU_SI_FAULT
, &info
);
3045 cpu_exec_step_atomic(cs
);
3048 EXCP_DUMP(env
, "qemu: unhandled CPU exception 0x%x - aborting\n", trapnr
);
3051 process_pending_signals(env
);
3054 #endif /* TARGET_M68K */
3057 void cpu_loop(CPUAlphaState
*env
)
3059 CPUState
*cs
= CPU(alpha_env_get_cpu(env
));
3061 target_siginfo_t info
;
3065 bool arch_interrupt
= true;
3068 trapnr
= cpu_exec(cs
);
3070 process_queued_cpu_work(cs
);
3074 fprintf(stderr
, "Reset requested. Exit\n");
3078 fprintf(stderr
, "Machine check exception. Exit\n");
3081 case EXCP_SMP_INTERRUPT
:
3082 case EXCP_CLK_INTERRUPT
:
3083 case EXCP_DEV_INTERRUPT
:
3084 fprintf(stderr
, "External interrupt. Exit\n");
3088 info
.si_signo
= TARGET_SIGSEGV
;
3090 info
.si_code
= (page_get_flags(env
->trap_arg0
) & PAGE_VALID
3091 ? TARGET_SEGV_ACCERR
: TARGET_SEGV_MAPERR
);
3092 info
._sifields
._sigfault
._addr
= env
->trap_arg0
;
3093 queue_signal(env
, info
.si_signo
, QEMU_SI_FAULT
, &info
);
3096 info
.si_signo
= TARGET_SIGBUS
;
3098 info
.si_code
= TARGET_BUS_ADRALN
;
3099 info
._sifields
._sigfault
._addr
= env
->trap_arg0
;
3100 queue_signal(env
, info
.si_signo
, QEMU_SI_FAULT
, &info
);
3104 info
.si_signo
= TARGET_SIGILL
;
3106 info
.si_code
= TARGET_ILL_ILLOPC
;
3107 info
._sifields
._sigfault
._addr
= env
->pc
;
3108 queue_signal(env
, info
.si_signo
, QEMU_SI_FAULT
, &info
);
3111 info
.si_signo
= TARGET_SIGFPE
;
3113 info
.si_code
= TARGET_FPE_FLTINV
;
3114 info
._sifields
._sigfault
._addr
= env
->pc
;
3115 queue_signal(env
, info
.si_signo
, QEMU_SI_FAULT
, &info
);
3118 /* No-op. Linux simply re-enables the FPU. */
3121 switch (env
->error_code
) {
3124 info
.si_signo
= TARGET_SIGTRAP
;
3126 info
.si_code
= TARGET_TRAP_BRKPT
;
3127 info
._sifields
._sigfault
._addr
= env
->pc
;
3128 queue_signal(env
, info
.si_signo
, QEMU_SI_FAULT
, &info
);
3132 info
.si_signo
= TARGET_SIGTRAP
;
3135 info
._sifields
._sigfault
._addr
= env
->pc
;
3136 queue_signal(env
, info
.si_signo
, QEMU_SI_FAULT
, &info
);
3140 trapnr
= env
->ir
[IR_V0
];
3141 sysret
= do_syscall(env
, trapnr
,
3142 env
->ir
[IR_A0
], env
->ir
[IR_A1
],
3143 env
->ir
[IR_A2
], env
->ir
[IR_A3
],
3144 env
->ir
[IR_A4
], env
->ir
[IR_A5
],
3146 if (sysret
== -TARGET_ERESTARTSYS
) {
3150 if (sysret
== -TARGET_QEMU_ESIGRETURN
) {
3153 /* Syscall writes 0 to V0 to bypass error check, similar
3154 to how this is handled internal to Linux kernel.
3155 (Ab)use trapnr temporarily as boolean indicating error. */
3156 trapnr
= (env
->ir
[IR_V0
] != 0 && sysret
< 0);
3157 env
->ir
[IR_V0
] = (trapnr
? -sysret
: sysret
);
3158 env
->ir
[IR_A3
] = trapnr
;
3162 /* ??? We can probably elide the code using page_unprotect
3163 that is checking for self-modifying code. Instead we
3164 could simply call tb_flush here. Until we work out the
3165 changes required to turn off the extra write protection,
3166 this can be a no-op. */
3170 /* Handled in the translator for usermode. */
3174 /* Handled in the translator for usermode. */
3178 info
.si_signo
= TARGET_SIGFPE
;
3179 switch (env
->ir
[IR_A0
]) {
3180 case TARGET_GEN_INTOVF
:
3181 info
.si_code
= TARGET_FPE_INTOVF
;
3183 case TARGET_GEN_INTDIV
:
3184 info
.si_code
= TARGET_FPE_INTDIV
;
3186 case TARGET_GEN_FLTOVF
:
3187 info
.si_code
= TARGET_FPE_FLTOVF
;
3189 case TARGET_GEN_FLTUND
:
3190 info
.si_code
= TARGET_FPE_FLTUND
;
3192 case TARGET_GEN_FLTINV
:
3193 info
.si_code
= TARGET_FPE_FLTINV
;
3195 case TARGET_GEN_FLTINE
:
3196 info
.si_code
= TARGET_FPE_FLTRES
;
3198 case TARGET_GEN_ROPRAND
:
3202 info
.si_signo
= TARGET_SIGTRAP
;
3207 info
._sifields
._sigfault
._addr
= env
->pc
;
3208 queue_signal(env
, info
.si_signo
, QEMU_SI_FAULT
, &info
);
3215 info
.si_signo
= gdb_handlesig(cs
, TARGET_SIGTRAP
);
3216 if (info
.si_signo
) {
3218 info
.si_code
= TARGET_TRAP_BRKPT
;
3219 queue_signal(env
, info
.si_signo
, QEMU_SI_FAULT
, &info
);
3221 arch_interrupt
= false;
3224 case EXCP_INTERRUPT
:
3225 /* Just indicate that signals should be handled asap. */
3228 cpu_exec_step_atomic(cs
);
3229 arch_interrupt
= false;
3232 printf ("Unhandled trap: 0x%x\n", trapnr
);
3233 cpu_dump_state(cs
, stderr
, fprintf
, 0);
3236 process_pending_signals (env
);
3238 /* Most of the traps imply a transition through PALcode, which
3239 implies an REI instruction has been executed. Which means
3240 that RX and LOCK_ADDR should be cleared. But there are a
3241 few exceptions for traps internal to QEMU. */
3242 if (arch_interrupt
) {
3243 env
->flags
&= ~ENV_FLAG_RX_FLAG
;
3244 env
->lock_addr
= -1;
3248 #endif /* TARGET_ALPHA */
3252 /* s390x masks the fault address it reports in si_addr for SIGSEGV and SIGBUS */
3253 #define S390X_FAIL_ADDR_MASK -4096LL
3255 void cpu_loop(CPUS390XState
*env
)
3257 CPUState
*cs
= CPU(s390_env_get_cpu(env
));
3259 target_siginfo_t info
;
3265 trapnr
= cpu_exec(cs
);
3267 process_queued_cpu_work(cs
);
3270 case EXCP_INTERRUPT
:
3271 /* Just indicate that signals should be handled asap. */
3275 n
= env
->int_svc_code
;
3277 /* syscalls > 255 */
3280 env
->psw
.addr
+= env
->int_svc_ilen
;
3281 ret
= do_syscall(env
, n
, env
->regs
[2], env
->regs
[3],
3282 env
->regs
[4], env
->regs
[5],
3283 env
->regs
[6], env
->regs
[7], 0, 0);
3284 if (ret
== -TARGET_ERESTARTSYS
) {
3285 env
->psw
.addr
-= env
->int_svc_ilen
;
3286 } else if (ret
!= -TARGET_QEMU_ESIGRETURN
) {
3292 sig
= gdb_handlesig(cs
, TARGET_SIGTRAP
);
3294 n
= TARGET_TRAP_BRKPT
;
3299 n
= env
->int_pgm_code
;
3302 case PGM_PRIVILEGED
:
3303 sig
= TARGET_SIGILL
;
3304 n
= TARGET_ILL_ILLOPC
;
3306 case PGM_PROTECTION
:
3307 case PGM_ADDRESSING
:
3308 sig
= TARGET_SIGSEGV
;
3309 /* XXX: check env->error_code */
3310 n
= TARGET_SEGV_MAPERR
;
3311 addr
= env
->__excp_addr
& S390X_FAIL_ADDR_MASK
;
3314 case PGM_SPECIFICATION
:
3315 case PGM_SPECIAL_OP
:
3318 sig
= TARGET_SIGILL
;
3319 n
= TARGET_ILL_ILLOPN
;
3322 case PGM_FIXPT_OVERFLOW
:
3323 sig
= TARGET_SIGFPE
;
3324 n
= TARGET_FPE_INTOVF
;
3326 case PGM_FIXPT_DIVIDE
:
3327 sig
= TARGET_SIGFPE
;
3328 n
= TARGET_FPE_INTDIV
;
3332 n
= (env
->fpc
>> 8) & 0xff;
3334 /* compare-and-trap */
3337 /* An IEEE exception, simulated or otherwise. */
3339 n
= TARGET_FPE_FLTINV
;
3340 } else if (n
& 0x40) {
3341 n
= TARGET_FPE_FLTDIV
;
3342 } else if (n
& 0x20) {
3343 n
= TARGET_FPE_FLTOVF
;
3344 } else if (n
& 0x10) {
3345 n
= TARGET_FPE_FLTUND
;
3346 } else if (n
& 0x08) {
3347 n
= TARGET_FPE_FLTRES
;
3349 /* ??? Quantum exception; BFP, DFP error. */
3352 sig
= TARGET_SIGFPE
;
3357 fprintf(stderr
, "Unhandled program exception: %#x\n", n
);
3358 cpu_dump_state(cs
, stderr
, fprintf
, 0);
3364 addr
= env
->psw
.addr
;
3366 info
.si_signo
= sig
;
3369 info
._sifields
._sigfault
._addr
= addr
;
3370 queue_signal(env
, info
.si_signo
, QEMU_SI_FAULT
, &info
);
3374 cpu_exec_step_atomic(cs
);
3377 fprintf(stderr
, "Unhandled trap: 0x%x\n", trapnr
);
3378 cpu_dump_state(cs
, stderr
, fprintf
, 0);
3381 process_pending_signals (env
);
3385 #endif /* TARGET_S390X */
3387 #ifdef TARGET_TILEGX
3389 static void gen_sigill_reg(CPUTLGState
*env
)
3391 target_siginfo_t info
;
3393 info
.si_signo
= TARGET_SIGILL
;
3395 info
.si_code
= TARGET_ILL_PRVREG
;
3396 info
._sifields
._sigfault
._addr
= env
->pc
;
3397 queue_signal(env
, info
.si_signo
, QEMU_SI_FAULT
, &info
);
3400 static void do_signal(CPUTLGState
*env
, int signo
, int sigcode
)
3402 target_siginfo_t info
;
3404 info
.si_signo
= signo
;
3406 info
._sifields
._sigfault
._addr
= env
->pc
;
3408 if (signo
== TARGET_SIGSEGV
) {
3409 /* The passed in sigcode is a dummy; check for a page mapping
3410 and pass either MAPERR or ACCERR. */
3411 target_ulong addr
= env
->excaddr
;
3412 info
._sifields
._sigfault
._addr
= addr
;
3413 if (page_check_range(addr
, 1, PAGE_VALID
) < 0) {
3414 sigcode
= TARGET_SEGV_MAPERR
;
3416 sigcode
= TARGET_SEGV_ACCERR
;
3419 info
.si_code
= sigcode
;
3421 queue_signal(env
, info
.si_signo
, QEMU_SI_FAULT
, &info
);
3424 static void gen_sigsegv_maperr(CPUTLGState
*env
, target_ulong addr
)
3426 env
->excaddr
= addr
;
3427 do_signal(env
, TARGET_SIGSEGV
, 0);
3430 static void set_regval(CPUTLGState
*env
, uint8_t reg
, uint64_t val
)
3432 if (unlikely(reg
>= TILEGX_R_COUNT
)) {
3443 gen_sigill_reg(env
);
3446 g_assert_not_reached();
3449 env
->regs
[reg
] = val
;
3453 * Compare the 8-byte contents of the CmpValue SPR with the 8-byte value in
3454 * memory at the address held in the first source register. If the values are
3455 * not equal, then no memory operation is performed. If the values are equal,
3456 * the 8-byte quantity from the second source register is written into memory
3457 * at the address held in the first source register. In either case, the result
3458 * of the instruction is the value read from memory. The compare and write to
3459 * memory are atomic and thus can be used for synchronization purposes. This
3460 * instruction only operates for addresses aligned to a 8-byte boundary.
3461 * Unaligned memory access causes an Unaligned Data Reference interrupt.
3463 * Functional Description (64-bit)
3464 * uint64_t memVal = memoryReadDoubleWord (rf[SrcA]);
3465 * rf[Dest] = memVal;
3466 * if (memVal == SPR[CmpValueSPR])
3467 * memoryWriteDoubleWord (rf[SrcA], rf[SrcB]);
3469 * Functional Description (32-bit)
3470 * uint64_t memVal = signExtend32 (memoryReadWord (rf[SrcA]));
3471 * rf[Dest] = memVal;
3472 * if (memVal == signExtend32 (SPR[CmpValueSPR]))
3473 * memoryWriteWord (rf[SrcA], rf[SrcB]);
3476 * This function also processes exch and exch4 which need not process SPR.
3478 static void do_exch(CPUTLGState
*env
, bool quad
, bool cmp
)
3481 target_long val
, sprval
;
3485 addr
= env
->atomic_srca
;
3486 if (quad
? get_user_s64(val
, addr
) : get_user_s32(val
, addr
)) {
3487 goto sigsegv_maperr
;
3492 sprval
= env
->spregs
[TILEGX_SPR_CMPEXCH
];
3494 sprval
= sextract64(env
->spregs
[TILEGX_SPR_CMPEXCH
], 0, 32);
3498 if (!cmp
|| val
== sprval
) {
3499 target_long valb
= env
->atomic_srcb
;
3500 if (quad
? put_user_u64(valb
, addr
) : put_user_u32(valb
, addr
)) {
3501 goto sigsegv_maperr
;
3505 set_regval(env
, env
->atomic_dstr
, val
);
3511 gen_sigsegv_maperr(env
, addr
);
3514 static void do_fetch(CPUTLGState
*env
, int trapnr
, bool quad
)
3518 target_long val
, valb
;
3522 addr
= env
->atomic_srca
;
3523 valb
= env
->atomic_srcb
;
3524 if (quad
? get_user_s64(val
, addr
) : get_user_s32(val
, addr
)) {
3525 goto sigsegv_maperr
;
3529 case TILEGX_EXCP_OPCODE_FETCHADD
:
3530 case TILEGX_EXCP_OPCODE_FETCHADD4
:
3533 case TILEGX_EXCP_OPCODE_FETCHADDGEZ
:
3539 case TILEGX_EXCP_OPCODE_FETCHADDGEZ4
:
3541 if ((int32_t)valb
< 0) {
3545 case TILEGX_EXCP_OPCODE_FETCHAND
:
3546 case TILEGX_EXCP_OPCODE_FETCHAND4
:
3549 case TILEGX_EXCP_OPCODE_FETCHOR
:
3550 case TILEGX_EXCP_OPCODE_FETCHOR4
:
3554 g_assert_not_reached();
3558 if (quad
? put_user_u64(valb
, addr
) : put_user_u32(valb
, addr
)) {
3559 goto sigsegv_maperr
;
3563 set_regval(env
, env
->atomic_dstr
, val
);
3569 gen_sigsegv_maperr(env
, addr
);
3572 void cpu_loop(CPUTLGState
*env
)
3574 CPUState
*cs
= CPU(tilegx_env_get_cpu(env
));
3579 trapnr
= cpu_exec(cs
);
3581 process_queued_cpu_work(cs
);
3584 case TILEGX_EXCP_SYSCALL
:
3586 abi_ulong ret
= do_syscall(env
, env
->regs
[TILEGX_R_NR
],
3587 env
->regs
[0], env
->regs
[1],
3588 env
->regs
[2], env
->regs
[3],
3589 env
->regs
[4], env
->regs
[5],
3590 env
->regs
[6], env
->regs
[7]);
3591 if (ret
== -TARGET_ERESTARTSYS
) {
3593 } else if (ret
!= -TARGET_QEMU_ESIGRETURN
) {
3594 env
->regs
[TILEGX_R_RE
] = ret
;
3595 env
->regs
[TILEGX_R_ERR
] = TILEGX_IS_ERRNO(ret
) ? -ret
: 0;
3599 case TILEGX_EXCP_OPCODE_EXCH
:
3600 do_exch(env
, true, false);
3602 case TILEGX_EXCP_OPCODE_EXCH4
:
3603 do_exch(env
, false, false);
3605 case TILEGX_EXCP_OPCODE_CMPEXCH
:
3606 do_exch(env
, true, true);
3608 case TILEGX_EXCP_OPCODE_CMPEXCH4
:
3609 do_exch(env
, false, true);
3611 case TILEGX_EXCP_OPCODE_FETCHADD
:
3612 case TILEGX_EXCP_OPCODE_FETCHADDGEZ
:
3613 case TILEGX_EXCP_OPCODE_FETCHAND
:
3614 case TILEGX_EXCP_OPCODE_FETCHOR
:
3615 do_fetch(env
, trapnr
, true);
3617 case TILEGX_EXCP_OPCODE_FETCHADD4
:
3618 case TILEGX_EXCP_OPCODE_FETCHADDGEZ4
:
3619 case TILEGX_EXCP_OPCODE_FETCHAND4
:
3620 case TILEGX_EXCP_OPCODE_FETCHOR4
:
3621 do_fetch(env
, trapnr
, false);
3623 case TILEGX_EXCP_SIGNAL
:
3624 do_signal(env
, env
->signo
, env
->sigcode
);
3626 case TILEGX_EXCP_REG_IDN_ACCESS
:
3627 case TILEGX_EXCP_REG_UDN_ACCESS
:
3628 gen_sigill_reg(env
);
3631 cpu_exec_step_atomic(cs
);
3634 fprintf(stderr
, "trapnr is %d[0x%x].\n", trapnr
, trapnr
);
3635 g_assert_not_reached();
3637 process_pending_signals(env
);
3645 static abi_ulong
hppa_lws(CPUHPPAState
*env
)
3647 uint32_t which
= env
->gr
[20];
3648 abi_ulong addr
= env
->gr
[26];
3649 abi_ulong old
= env
->gr
[25];
3650 abi_ulong
new = env
->gr
[24];
3651 abi_ulong size
, ret
;
3655 return -TARGET_ENOSYS
;
3657 case 0: /* elf32 atomic 32bit cmpxchg */
3658 if ((addr
& 3) || !access_ok(VERIFY_WRITE
, addr
, 4)) {
3659 return -TARGET_EFAULT
;
3663 ret
= atomic_cmpxchg((uint32_t *)g2h(addr
), old
, new);
3667 case 2: /* elf32 atomic "new" cmpxchg */
3670 return -TARGET_ENOSYS
;
3672 if (((addr
| old
| new) & ((1 << size
) - 1))
3673 || !access_ok(VERIFY_WRITE
, addr
, 1 << size
)
3674 || !access_ok(VERIFY_READ
, old
, 1 << size
)
3675 || !access_ok(VERIFY_READ
, new, 1 << size
)) {
3676 return -TARGET_EFAULT
;
3678 /* Note that below we use host-endian loads so that the cmpxchg
3679 can be host-endian as well. */
3682 old
= *(uint8_t *)g2h(old
);
3683 new = *(uint8_t *)g2h(new);
3684 ret
= atomic_cmpxchg((uint8_t *)g2h(addr
), old
, new);
3688 old
= *(uint16_t *)g2h(old
);
3689 new = *(uint16_t *)g2h(new);
3690 ret
= atomic_cmpxchg((uint16_t *)g2h(addr
), old
, new);
3694 old
= *(uint32_t *)g2h(old
);
3695 new = *(uint32_t *)g2h(new);
3696 ret
= atomic_cmpxchg((uint32_t *)g2h(addr
), old
, new);
3701 uint64_t o64
, n64
, r64
;
3702 o64
= *(uint64_t *)g2h(old
);
3703 n64
= *(uint64_t *)g2h(new);
3704 #ifdef CONFIG_ATOMIC64
3705 r64
= atomic_cmpxchg__nocheck((uint64_t *)g2h(addr
), o64
, n64
);
3709 r64
= *(uint64_t *)g2h(addr
);
3712 *(uint64_t *)g2h(addr
) = n64
;
3727 void cpu_loop(CPUHPPAState
*env
)
3729 CPUState
*cs
= CPU(hppa_env_get_cpu(env
));
3730 target_siginfo_t info
;
3736 trapnr
= cpu_exec(cs
);
3738 process_queued_cpu_work(cs
);
3742 ret
= do_syscall(env
, env
->gr
[20],
3743 env
->gr
[26], env
->gr
[25],
3744 env
->gr
[24], env
->gr
[23],
3745 env
->gr
[22], env
->gr
[21], 0, 0);
3749 /* We arrived here by faking the gateway page. Return. */
3750 env
->iaoq_f
= env
->gr
[31];
3751 env
->iaoq_b
= env
->gr
[31] + 4;
3753 case -TARGET_ERESTARTSYS
:
3754 case -TARGET_QEMU_ESIGRETURN
:
3758 case EXCP_SYSCALL_LWS
:
3759 env
->gr
[21] = hppa_lws(env
);
3760 /* We arrived here by faking the gateway page. Return. */
3761 env
->iaoq_f
= env
->gr
[31];
3762 env
->iaoq_b
= env
->gr
[31] + 4;
3765 info
.si_signo
= TARGET_SIGSEGV
;
3767 info
.si_code
= TARGET_SEGV_ACCERR
;
3768 info
._sifields
._sigfault
._addr
= env
->ior
;
3769 queue_signal(env
, info
.si_signo
, QEMU_SI_FAULT
, &info
);
3772 info
.si_signo
= TARGET_SIGILL
;
3774 info
.si_code
= TARGET_ILL_ILLOPN
;
3775 info
._sifields
._sigfault
._addr
= env
->iaoq_f
;
3776 queue_signal(env
, info
.si_signo
, QEMU_SI_FAULT
, &info
);
3779 info
.si_signo
= TARGET_SIGFPE
;
3782 info
._sifields
._sigfault
._addr
= env
->iaoq_f
;
3783 queue_signal(env
, info
.si_signo
, QEMU_SI_FAULT
, &info
);
3786 trapnr
= gdb_handlesig(cs
, TARGET_SIGTRAP
);
3788 info
.si_signo
= trapnr
;
3790 info
.si_code
= TARGET_TRAP_BRKPT
;
3791 queue_signal(env
, trapnr
, QEMU_SI_FAULT
, &info
);
3794 case EXCP_INTERRUPT
:
3795 /* just indicate that signals should be handled asap */
3798 g_assert_not_reached();
3800 process_pending_signals(env
);
3804 #endif /* TARGET_HPPA */
3806 THREAD CPUState
*thread_cpu
;
3808 bool qemu_cpu_is_self(CPUState
*cpu
)
3810 return thread_cpu
== cpu
;
3813 void qemu_cpu_kick(CPUState
*cpu
)
3818 void task_settid(TaskState
*ts
)
3820 if (ts
->ts_tid
== 0) {
3821 ts
->ts_tid
= (pid_t
)syscall(SYS_gettid
);
3825 void stop_all_tasks(void)
3828 * We trust that when using NPTL, start_exclusive()
3829 * handles thread stopping correctly.
3834 /* Assumes contents are already zeroed. */
3835 void init_task_state(TaskState
*ts
)
3840 CPUArchState
*cpu_copy(CPUArchState
*env
)
3842 CPUState
*cpu
= ENV_GET_CPU(env
);
3843 CPUState
*new_cpu
= cpu_init(cpu_model
);
3844 CPUArchState
*new_env
= new_cpu
->env_ptr
;
3848 /* Reset non arch specific state */
3851 memcpy(new_env
, env
, sizeof(CPUArchState
));
3853 /* Clone all break/watchpoints.
3854 Note: Once we support ptrace with hw-debug register access, make sure
3855 BP_CPU break/watchpoints are handled correctly on clone. */
3856 QTAILQ_INIT(&new_cpu
->breakpoints
);
3857 QTAILQ_INIT(&new_cpu
->watchpoints
);
3858 QTAILQ_FOREACH(bp
, &cpu
->breakpoints
, entry
) {
3859 cpu_breakpoint_insert(new_cpu
, bp
->pc
, bp
->flags
, NULL
);
3861 QTAILQ_FOREACH(wp
, &cpu
->watchpoints
, entry
) {
3862 cpu_watchpoint_insert(new_cpu
, wp
->vaddr
, wp
->len
, wp
->flags
, NULL
);
3868 static void handle_arg_help(const char *arg
)
3870 usage(EXIT_SUCCESS
);
3873 static void handle_arg_log(const char *arg
)
3877 mask
= qemu_str_to_log_mask(arg
);
3879 qemu_print_log_usage(stdout
);
3882 qemu_log_needs_buffers();
3886 static void handle_arg_dfilter(const char *arg
)
3888 qemu_set_dfilter_ranges(arg
, NULL
);
3891 static void handle_arg_log_filename(const char *arg
)
3893 qemu_set_log_filename(arg
, &error_fatal
);
3896 static void handle_arg_set_env(const char *arg
)
3898 char *r
, *p
, *token
;
3899 r
= p
= strdup(arg
);
3900 while ((token
= strsep(&p
, ",")) != NULL
) {
3901 if (envlist_setenv(envlist
, token
) != 0) {
3902 usage(EXIT_FAILURE
);
3908 static void handle_arg_unset_env(const char *arg
)
3910 char *r
, *p
, *token
;
3911 r
= p
= strdup(arg
);
3912 while ((token
= strsep(&p
, ",")) != NULL
) {
3913 if (envlist_unsetenv(envlist
, token
) != 0) {
3914 usage(EXIT_FAILURE
);
3920 static void handle_arg_argv0(const char *arg
)
3922 argv0
= strdup(arg
);
3925 static void handle_arg_stack_size(const char *arg
)
3928 guest_stack_size
= strtoul(arg
, &p
, 0);
3929 if (guest_stack_size
== 0) {
3930 usage(EXIT_FAILURE
);
3934 guest_stack_size
*= 1024 * 1024;
3935 } else if (*p
== 'k' || *p
== 'K') {
3936 guest_stack_size
*= 1024;
3940 static void handle_arg_ld_prefix(const char *arg
)
3942 interp_prefix
= strdup(arg
);
3945 static void handle_arg_pagesize(const char *arg
)
3947 qemu_host_page_size
= atoi(arg
);
3948 if (qemu_host_page_size
== 0 ||
3949 (qemu_host_page_size
& (qemu_host_page_size
- 1)) != 0) {
3950 fprintf(stderr
, "page size must be a power of two\n");
3955 static void handle_arg_randseed(const char *arg
)
3957 unsigned long long seed
;
3959 if (parse_uint_full(arg
, &seed
, 0) != 0 || seed
> UINT_MAX
) {
3960 fprintf(stderr
, "Invalid seed number: %s\n", arg
);
3966 static void handle_arg_gdb(const char *arg
)
3968 gdbstub_port
= atoi(arg
);
3971 static void handle_arg_uname(const char *arg
)
3973 qemu_uname_release
= strdup(arg
);
3976 static void handle_arg_cpu(const char *arg
)
3978 cpu_model
= strdup(arg
);
3979 if (cpu_model
== NULL
|| is_help_option(cpu_model
)) {
3980 /* XXX: implement xxx_cpu_list for targets that still miss it */
3981 #if defined(cpu_list)
3982 cpu_list(stdout
, &fprintf
);
3988 static void handle_arg_guest_base(const char *arg
)
3990 guest_base
= strtol(arg
, NULL
, 0);
3991 have_guest_base
= 1;
3994 static void handle_arg_reserved_va(const char *arg
)
3998 reserved_va
= strtoul(arg
, &p
, 0);
4012 unsigned long unshifted
= reserved_va
;
4014 reserved_va
<<= shift
;
4015 if (reserved_va
>> shift
!= unshifted
4016 || (MAX_RESERVED_VA
&& reserved_va
> MAX_RESERVED_VA
)) {
4017 fprintf(stderr
, "Reserved virtual address too big\n");
4022 fprintf(stderr
, "Unrecognised -R size suffix '%s'\n", p
);
4027 static void handle_arg_singlestep(const char *arg
)
4032 static void handle_arg_strace(const char *arg
)
4037 static void handle_arg_version(const char *arg
)
4039 printf("qemu-" TARGET_NAME
" version " QEMU_VERSION QEMU_PKGVERSION
4040 "\n" QEMU_COPYRIGHT
"\n");
4044 static char *trace_file
;
4045 static void handle_arg_trace(const char *arg
)
4048 trace_file
= trace_opt_parse(arg
);
4051 struct qemu_argument
{
4055 void (*handle_opt
)(const char *arg
);
4056 const char *example
;
4060 static const struct qemu_argument arg_table
[] = {
4061 {"h", "", false, handle_arg_help
,
4062 "", "print this help"},
4063 {"help", "", false, handle_arg_help
,
4065 {"g", "QEMU_GDB", true, handle_arg_gdb
,
4066 "port", "wait gdb connection to 'port'"},
4067 {"L", "QEMU_LD_PREFIX", true, handle_arg_ld_prefix
,
4068 "path", "set the elf interpreter prefix to 'path'"},
4069 {"s", "QEMU_STACK_SIZE", true, handle_arg_stack_size
,
4070 "size", "set the stack size to 'size' bytes"},
4071 {"cpu", "QEMU_CPU", true, handle_arg_cpu
,
4072 "model", "select CPU (-cpu help for list)"},
4073 {"E", "QEMU_SET_ENV", true, handle_arg_set_env
,
4074 "var=value", "sets targets environment variable (see below)"},
4075 {"U", "QEMU_UNSET_ENV", true, handle_arg_unset_env
,
4076 "var", "unsets targets environment variable (see below)"},
4077 {"0", "QEMU_ARGV0", true, handle_arg_argv0
,
4078 "argv0", "forces target process argv[0] to be 'argv0'"},
4079 {"r", "QEMU_UNAME", true, handle_arg_uname
,
4080 "uname", "set qemu uname release string to 'uname'"},
4081 {"B", "QEMU_GUEST_BASE", true, handle_arg_guest_base
,
4082 "address", "set guest_base address to 'address'"},
4083 {"R", "QEMU_RESERVED_VA", true, handle_arg_reserved_va
,
4084 "size", "reserve 'size' bytes for guest virtual address space"},
4085 {"d", "QEMU_LOG", true, handle_arg_log
,
4086 "item[,...]", "enable logging of specified items "
4087 "(use '-d help' for a list of items)"},
4088 {"dfilter", "QEMU_DFILTER", true, handle_arg_dfilter
,
4089 "range[,...]","filter logging based on address range"},
4090 {"D", "QEMU_LOG_FILENAME", true, handle_arg_log_filename
,
4091 "logfile", "write logs to 'logfile' (default stderr)"},
4092 {"p", "QEMU_PAGESIZE", true, handle_arg_pagesize
,
4093 "pagesize", "set the host page size to 'pagesize'"},
4094 {"singlestep", "QEMU_SINGLESTEP", false, handle_arg_singlestep
,
4095 "", "run in singlestep mode"},
4096 {"strace", "QEMU_STRACE", false, handle_arg_strace
,
4097 "", "log system calls"},
4098 {"seed", "QEMU_RAND_SEED", true, handle_arg_randseed
,
4099 "", "Seed for pseudo-random number generator"},
4100 {"trace", "QEMU_TRACE", true, handle_arg_trace
,
4101 "", "[[enable=]<pattern>][,events=<file>][,file=<file>]"},
4102 {"version", "QEMU_VERSION", false, handle_arg_version
,
4103 "", "display version information and exit"},
4104 {NULL
, NULL
, false, NULL
, NULL
, NULL
}
4107 static void usage(int exitcode
)
4109 const struct qemu_argument
*arginfo
;
4113 printf("usage: qemu-" TARGET_NAME
" [options] program [arguments...]\n"
4114 "Linux CPU emulator (compiled for " TARGET_NAME
" emulation)\n"
4116 "Options and associated environment variables:\n"
4119 /* Calculate column widths. We must always have at least enough space
4120 * for the column header.
4122 maxarglen
= strlen("Argument");
4123 maxenvlen
= strlen("Env-variable");
4125 for (arginfo
= arg_table
; arginfo
->handle_opt
!= NULL
; arginfo
++) {
4126 int arglen
= strlen(arginfo
->argv
);
4127 if (arginfo
->has_arg
) {
4128 arglen
+= strlen(arginfo
->example
) + 1;
4130 if (strlen(arginfo
->env
) > maxenvlen
) {
4131 maxenvlen
= strlen(arginfo
->env
);
4133 if (arglen
> maxarglen
) {
4138 printf("%-*s %-*s Description\n", maxarglen
+1, "Argument",
4139 maxenvlen
, "Env-variable");
4141 for (arginfo
= arg_table
; arginfo
->handle_opt
!= NULL
; arginfo
++) {
4142 if (arginfo
->has_arg
) {
4143 printf("-%s %-*s %-*s %s\n", arginfo
->argv
,
4144 (int)(maxarglen
- strlen(arginfo
->argv
) - 1),
4145 arginfo
->example
, maxenvlen
, arginfo
->env
, arginfo
->help
);
4147 printf("-%-*s %-*s %s\n", maxarglen
, arginfo
->argv
,
4148 maxenvlen
, arginfo
->env
,
4155 "QEMU_LD_PREFIX = %s\n"
4156 "QEMU_STACK_SIZE = %ld byte\n",
4161 "You can use -E and -U options or the QEMU_SET_ENV and\n"
4162 "QEMU_UNSET_ENV environment variables to set and unset\n"
4163 "environment variables for the target process.\n"
4164 "It is possible to provide several variables by separating them\n"
4165 "by commas in getsubopt(3) style. Additionally it is possible to\n"
4166 "provide the -E and -U options multiple times.\n"
4167 "The following lines are equivalent:\n"
4168 " -E var1=val2 -E var2=val2 -U LD_PRELOAD -U LD_DEBUG\n"
4169 " -E var1=val2,var2=val2 -U LD_PRELOAD,LD_DEBUG\n"
4170 " QEMU_SET_ENV=var1=val2,var2=val2 QEMU_UNSET_ENV=LD_PRELOAD,LD_DEBUG\n"
4171 "Note that if you provide several changes to a single variable\n"
4172 "the last change will stay in effect.\n"
4174 QEMU_HELP_BOTTOM
"\n");
4179 static int parse_args(int argc
, char **argv
)
4183 const struct qemu_argument
*arginfo
;
4185 for (arginfo
= arg_table
; arginfo
->handle_opt
!= NULL
; arginfo
++) {
4186 if (arginfo
->env
== NULL
) {
4190 r
= getenv(arginfo
->env
);
4192 arginfo
->handle_opt(r
);
4198 if (optind
>= argc
) {
4207 if (!strcmp(r
, "-")) {
4210 /* Treat --foo the same as -foo. */
4215 for (arginfo
= arg_table
; arginfo
->handle_opt
!= NULL
; arginfo
++) {
4216 if (!strcmp(r
, arginfo
->argv
)) {
4217 if (arginfo
->has_arg
) {
4218 if (optind
>= argc
) {
4219 (void) fprintf(stderr
,
4220 "qemu: missing argument for option '%s'\n", r
);
4223 arginfo
->handle_opt(argv
[optind
]);
4226 arginfo
->handle_opt(NULL
);
4232 /* no option matched the current argv */
4233 if (arginfo
->handle_opt
== NULL
) {
4234 (void) fprintf(stderr
, "qemu: unknown option '%s'\n", r
);
4239 if (optind
>= argc
) {
4240 (void) fprintf(stderr
, "qemu: no user program specified\n");
4244 filename
= argv
[optind
];
4245 exec_path
= argv
[optind
];
4250 int main(int argc
, char **argv
, char **envp
)
4252 struct target_pt_regs regs1
, *regs
= ®s1
;
4253 struct image_info info1
, *info
= &info1
;
4254 struct linux_binprm bprm
;
4259 char **target_environ
, **wrk
;
4266 module_call_init(MODULE_INIT_TRACE
);
4267 qemu_init_cpu_list();
4268 module_call_init(MODULE_INIT_QOM
);
4270 envlist
= envlist_create();
4272 /* add current environment into the list */
4273 for (wrk
= environ
; *wrk
!= NULL
; wrk
++) {
4274 (void) envlist_setenv(envlist
, *wrk
);
4277 /* Read the stack limit from the kernel. If it's "unlimited",
4278 then we can do little else besides use the default. */
4281 if (getrlimit(RLIMIT_STACK
, &lim
) == 0
4282 && lim
.rlim_cur
!= RLIM_INFINITY
4283 && lim
.rlim_cur
== (target_long
)lim
.rlim_cur
) {
4284 guest_stack_size
= lim
.rlim_cur
;
4292 qemu_add_opts(&qemu_trace_opts
);
4294 optind
= parse_args(argc
, argv
);
4296 if (!trace_init_backends()) {
4299 trace_init_file(trace_file
);
4302 memset(regs
, 0, sizeof(struct target_pt_regs
));
4304 /* Zero out image_info */
4305 memset(info
, 0, sizeof(struct image_info
));
4307 memset(&bprm
, 0, sizeof (bprm
));
4309 /* Scan interp_prefix dir for replacement files. */
4310 init_paths(interp_prefix
);
4312 init_qemu_uname_release();
4314 if (cpu_model
== NULL
) {
4315 #if defined(TARGET_I386)
4316 #ifdef TARGET_X86_64
4317 cpu_model
= "qemu64";
4319 cpu_model
= "qemu32";
4321 #elif defined(TARGET_ARM)
4323 #elif defined(TARGET_UNICORE32)
4325 #elif defined(TARGET_M68K)
4327 #elif defined(TARGET_SPARC)
4328 #ifdef TARGET_SPARC64
4329 cpu_model
= "TI UltraSparc II";
4331 cpu_model
= "Fujitsu MB86904";
4333 #elif defined(TARGET_MIPS)
4334 #if defined(TARGET_ABI_MIPSN32) || defined(TARGET_ABI_MIPSN64)
4339 #elif defined TARGET_OPENRISC
4340 cpu_model
= "or1200";
4341 #elif defined(TARGET_PPC)
4342 # ifdef TARGET_PPC64
4343 cpu_model
= "POWER8";
4347 #elif defined TARGET_SH4
4348 cpu_model
= "sh7785";
4349 #elif defined TARGET_S390X
4356 /* NOTE: we need to init the CPU at this stage to get
4357 qemu_host_page_size */
4358 cpu
= cpu_init(cpu_model
);
4364 if (getenv("QEMU_STRACE")) {
4368 if (getenv("QEMU_RAND_SEED")) {
4369 handle_arg_randseed(getenv("QEMU_RAND_SEED"));
4372 target_environ
= envlist_to_environ(envlist
, NULL
);
4373 envlist_free(envlist
);
4376 * Now that page sizes are configured in cpu_init() we can do
4377 * proper page alignment for guest_base.
4379 guest_base
= HOST_PAGE_ALIGN(guest_base
);
4381 if (reserved_va
|| have_guest_base
) {
4382 guest_base
= init_guest_space(guest_base
, reserved_va
, 0,
4384 if (guest_base
== (unsigned long)-1) {
4385 fprintf(stderr
, "Unable to reserve 0x%lx bytes of virtual address "
4386 "space for use as guest address space (check your virtual "
4387 "memory ulimit setting or reserve less using -R option)\n",
4393 mmap_next_start
= reserved_va
;
4398 * Read in mmap_min_addr kernel parameter. This value is used
4399 * When loading the ELF image to determine whether guest_base
4400 * is needed. It is also used in mmap_find_vma.
4405 if ((fp
= fopen("/proc/sys/vm/mmap_min_addr", "r")) != NULL
) {
4407 if (fscanf(fp
, "%lu", &tmp
) == 1) {
4408 mmap_min_addr
= tmp
;
4409 qemu_log_mask(CPU_LOG_PAGE
, "host mmap_min_addr=0x%lx\n", mmap_min_addr
);
4416 * Prepare copy of argv vector for target.
4418 target_argc
= argc
- optind
;
4419 target_argv
= calloc(target_argc
+ 1, sizeof (char *));
4420 if (target_argv
== NULL
) {
4421 (void) fprintf(stderr
, "Unable to allocate memory for target_argv\n");
4426 * If argv0 is specified (using '-0' switch) we replace
4427 * argv[0] pointer with the given one.
4430 if (argv0
!= NULL
) {
4431 target_argv
[i
++] = strdup(argv0
);
4433 for (; i
< target_argc
; i
++) {
4434 target_argv
[i
] = strdup(argv
[optind
+ i
]);
4436 target_argv
[target_argc
] = NULL
;
4438 ts
= g_new0(TaskState
, 1);
4439 init_task_state(ts
);
4440 /* build Task State */
4446 execfd
= qemu_getauxval(AT_EXECFD
);
4448 execfd
= open(filename
, O_RDONLY
);
4450 printf("Error while loading %s: %s\n", filename
, strerror(errno
));
4451 _exit(EXIT_FAILURE
);
4455 ret
= loader_exec(execfd
, filename
, target_argv
, target_environ
, regs
,
4458 printf("Error while loading %s: %s\n", filename
, strerror(-ret
));
4459 _exit(EXIT_FAILURE
);
4462 for (wrk
= target_environ
; *wrk
; wrk
++) {
4466 g_free(target_environ
);
4468 if (qemu_loglevel_mask(CPU_LOG_PAGE
)) {
4469 qemu_log("guest_base 0x%lx\n", guest_base
);
4472 qemu_log("start_brk 0x" TARGET_ABI_FMT_lx
"\n", info
->start_brk
);
4473 qemu_log("end_code 0x" TARGET_ABI_FMT_lx
"\n", info
->end_code
);
4474 qemu_log("start_code 0x" TARGET_ABI_FMT_lx
"\n", info
->start_code
);
4475 qemu_log("start_data 0x" TARGET_ABI_FMT_lx
"\n", info
->start_data
);
4476 qemu_log("end_data 0x" TARGET_ABI_FMT_lx
"\n", info
->end_data
);
4477 qemu_log("start_stack 0x" TARGET_ABI_FMT_lx
"\n", info
->start_stack
);
4478 qemu_log("brk 0x" TARGET_ABI_FMT_lx
"\n", info
->brk
);
4479 qemu_log("entry 0x" TARGET_ABI_FMT_lx
"\n", info
->entry
);
4480 qemu_log("argv_start 0x" TARGET_ABI_FMT_lx
"\n", info
->arg_start
);
4481 qemu_log("env_start 0x" TARGET_ABI_FMT_lx
"\n",
4482 info
->arg_end
+ (abi_ulong
)sizeof(abi_ulong
));
4483 qemu_log("auxv_start 0x" TARGET_ABI_FMT_lx
"\n", info
->saved_auxv
);
4486 target_set_brk(info
->brk
);
4490 /* Now that we've loaded the binary, GUEST_BASE is fixed. Delay
4491 generating the prologue until now so that the prologue can take
4492 the real value of GUEST_BASE into account. */
4493 tcg_prologue_init(tcg_ctx
);
4496 #if defined(TARGET_I386)
4497 env
->cr
[0] = CR0_PG_MASK
| CR0_WP_MASK
| CR0_PE_MASK
;
4498 env
->hflags
|= HF_PE_MASK
| HF_CPL_MASK
;
4499 if (env
->features
[FEAT_1_EDX
] & CPUID_SSE
) {
4500 env
->cr
[4] |= CR4_OSFXSR_MASK
;
4501 env
->hflags
|= HF_OSFXSR_MASK
;
4503 #ifndef TARGET_ABI32
4504 /* enable 64 bit mode if possible */
4505 if (!(env
->features
[FEAT_8000_0001_EDX
] & CPUID_EXT2_LM
)) {
4506 fprintf(stderr
, "The selected x86 CPU does not support 64 bit mode\n");
4509 env
->cr
[4] |= CR4_PAE_MASK
;
4510 env
->efer
|= MSR_EFER_LMA
| MSR_EFER_LME
;
4511 env
->hflags
|= HF_LMA_MASK
;
4514 /* flags setup : we activate the IRQs by default as in user mode */
4515 env
->eflags
|= IF_MASK
;
4517 /* linux register setup */
4518 #ifndef TARGET_ABI32
4519 env
->regs
[R_EAX
] = regs
->rax
;
4520 env
->regs
[R_EBX
] = regs
->rbx
;
4521 env
->regs
[R_ECX
] = regs
->rcx
;
4522 env
->regs
[R_EDX
] = regs
->rdx
;
4523 env
->regs
[R_ESI
] = regs
->rsi
;
4524 env
->regs
[R_EDI
] = regs
->rdi
;
4525 env
->regs
[R_EBP
] = regs
->rbp
;
4526 env
->regs
[R_ESP
] = regs
->rsp
;
4527 env
->eip
= regs
->rip
;
4529 env
->regs
[R_EAX
] = regs
->eax
;
4530 env
->regs
[R_EBX
] = regs
->ebx
;
4531 env
->regs
[R_ECX
] = regs
->ecx
;
4532 env
->regs
[R_EDX
] = regs
->edx
;
4533 env
->regs
[R_ESI
] = regs
->esi
;
4534 env
->regs
[R_EDI
] = regs
->edi
;
4535 env
->regs
[R_EBP
] = regs
->ebp
;
4536 env
->regs
[R_ESP
] = regs
->esp
;
4537 env
->eip
= regs
->eip
;
4540 /* linux interrupt setup */
4541 #ifndef TARGET_ABI32
4542 env
->idt
.limit
= 511;
4544 env
->idt
.limit
= 255;
4546 env
->idt
.base
= target_mmap(0, sizeof(uint64_t) * (env
->idt
.limit
+ 1),
4547 PROT_READ
|PROT_WRITE
,
4548 MAP_ANONYMOUS
|MAP_PRIVATE
, -1, 0);
4549 idt_table
= g2h(env
->idt
.base
);
4572 /* linux segment setup */
4574 uint64_t *gdt_table
;
4575 env
->gdt
.base
= target_mmap(0, sizeof(uint64_t) * TARGET_GDT_ENTRIES
,
4576 PROT_READ
|PROT_WRITE
,
4577 MAP_ANONYMOUS
|MAP_PRIVATE
, -1, 0);
4578 env
->gdt
.limit
= sizeof(uint64_t) * TARGET_GDT_ENTRIES
- 1;
4579 gdt_table
= g2h(env
->gdt
.base
);
4581 write_dt(&gdt_table
[__USER_CS
>> 3], 0, 0xfffff,
4582 DESC_G_MASK
| DESC_B_MASK
| DESC_P_MASK
| DESC_S_MASK
|
4583 (3 << DESC_DPL_SHIFT
) | (0xa << DESC_TYPE_SHIFT
));
4585 /* 64 bit code segment */
4586 write_dt(&gdt_table
[__USER_CS
>> 3], 0, 0xfffff,
4587 DESC_G_MASK
| DESC_B_MASK
| DESC_P_MASK
| DESC_S_MASK
|
4589 (3 << DESC_DPL_SHIFT
) | (0xa << DESC_TYPE_SHIFT
));
4591 write_dt(&gdt_table
[__USER_DS
>> 3], 0, 0xfffff,
4592 DESC_G_MASK
| DESC_B_MASK
| DESC_P_MASK
| DESC_S_MASK
|
4593 (3 << DESC_DPL_SHIFT
) | (0x2 << DESC_TYPE_SHIFT
));
4595 cpu_x86_load_seg(env
, R_CS
, __USER_CS
);
4596 cpu_x86_load_seg(env
, R_SS
, __USER_DS
);
4598 cpu_x86_load_seg(env
, R_DS
, __USER_DS
);
4599 cpu_x86_load_seg(env
, R_ES
, __USER_DS
);
4600 cpu_x86_load_seg(env
, R_FS
, __USER_DS
);
4601 cpu_x86_load_seg(env
, R_GS
, __USER_DS
);
4602 /* This hack makes Wine work... */
4603 env
->segs
[R_FS
].selector
= 0;
4605 cpu_x86_load_seg(env
, R_DS
, 0);
4606 cpu_x86_load_seg(env
, R_ES
, 0);
4607 cpu_x86_load_seg(env
, R_FS
, 0);
4608 cpu_x86_load_seg(env
, R_GS
, 0);
4610 #elif defined(TARGET_AARCH64)
4614 if (!(arm_feature(env
, ARM_FEATURE_AARCH64
))) {
4616 "The selected ARM CPU does not support 64 bit mode\n");
4620 for (i
= 0; i
< 31; i
++) {
4621 env
->xregs
[i
] = regs
->regs
[i
];
4624 env
->xregs
[31] = regs
->sp
;
4626 #elif defined(TARGET_ARM)
4629 cpsr_write(env
, regs
->uregs
[16], CPSR_USER
| CPSR_EXEC
,
4631 for(i
= 0; i
< 16; i
++) {
4632 env
->regs
[i
] = regs
->uregs
[i
];
4634 #ifdef TARGET_WORDS_BIGENDIAN
4636 if (EF_ARM_EABI_VERSION(info
->elf_flags
) >= EF_ARM_EABI_VER4
4637 && (info
->elf_flags
& EF_ARM_BE8
)) {
4638 env
->uncached_cpsr
|= CPSR_E
;
4639 env
->cp15
.sctlr_el
[1] |= SCTLR_E0E
;
4641 env
->cp15
.sctlr_el
[1] |= SCTLR_B
;
4645 #elif defined(TARGET_UNICORE32)
4648 cpu_asr_write(env
, regs
->uregs
[32], 0xffffffff);
4649 for (i
= 0; i
< 32; i
++) {
4650 env
->regs
[i
] = regs
->uregs
[i
];
4653 #elif defined(TARGET_SPARC)
4657 env
->npc
= regs
->npc
;
4659 for(i
= 0; i
< 8; i
++)
4660 env
->gregs
[i
] = regs
->u_regs
[i
];
4661 for(i
= 0; i
< 8; i
++)
4662 env
->regwptr
[i
] = regs
->u_regs
[i
+ 8];
4664 #elif defined(TARGET_PPC)
4668 #if defined(TARGET_PPC64)
4669 int flag
= (env
->insns_flags2
& PPC2_BOOKE206
) ? MSR_CM
: MSR_SF
;
4670 #if defined(TARGET_ABI32)
4671 env
->msr
&= ~((target_ulong
)1 << flag
);
4673 env
->msr
|= (target_ulong
)1 << flag
;
4676 env
->nip
= regs
->nip
;
4677 for(i
= 0; i
< 32; i
++) {
4678 env
->gpr
[i
] = regs
->gpr
[i
];
4681 #elif defined(TARGET_M68K)
4684 env
->dregs
[0] = regs
->d0
;
4685 env
->dregs
[1] = regs
->d1
;
4686 env
->dregs
[2] = regs
->d2
;
4687 env
->dregs
[3] = regs
->d3
;
4688 env
->dregs
[4] = regs
->d4
;
4689 env
->dregs
[5] = regs
->d5
;
4690 env
->dregs
[6] = regs
->d6
;
4691 env
->dregs
[7] = regs
->d7
;
4692 env
->aregs
[0] = regs
->a0
;
4693 env
->aregs
[1] = regs
->a1
;
4694 env
->aregs
[2] = regs
->a2
;
4695 env
->aregs
[3] = regs
->a3
;
4696 env
->aregs
[4] = regs
->a4
;
4697 env
->aregs
[5] = regs
->a5
;
4698 env
->aregs
[6] = regs
->a6
;
4699 env
->aregs
[7] = regs
->usp
;
4701 ts
->sim_syscalls
= 1;
4703 #elif defined(TARGET_MICROBLAZE)
4705 env
->regs
[0] = regs
->r0
;
4706 env
->regs
[1] = regs
->r1
;
4707 env
->regs
[2] = regs
->r2
;
4708 env
->regs
[3] = regs
->r3
;
4709 env
->regs
[4] = regs
->r4
;
4710 env
->regs
[5] = regs
->r5
;
4711 env
->regs
[6] = regs
->r6
;
4712 env
->regs
[7] = regs
->r7
;
4713 env
->regs
[8] = regs
->r8
;
4714 env
->regs
[9] = regs
->r9
;
4715 env
->regs
[10] = regs
->r10
;
4716 env
->regs
[11] = regs
->r11
;
4717 env
->regs
[12] = regs
->r12
;
4718 env
->regs
[13] = regs
->r13
;
4719 env
->regs
[14] = regs
->r14
;
4720 env
->regs
[15] = regs
->r15
;
4721 env
->regs
[16] = regs
->r16
;
4722 env
->regs
[17] = regs
->r17
;
4723 env
->regs
[18] = regs
->r18
;
4724 env
->regs
[19] = regs
->r19
;
4725 env
->regs
[20] = regs
->r20
;
4726 env
->regs
[21] = regs
->r21
;
4727 env
->regs
[22] = regs
->r22
;
4728 env
->regs
[23] = regs
->r23
;
4729 env
->regs
[24] = regs
->r24
;
4730 env
->regs
[25] = regs
->r25
;
4731 env
->regs
[26] = regs
->r26
;
4732 env
->regs
[27] = regs
->r27
;
4733 env
->regs
[28] = regs
->r28
;
4734 env
->regs
[29] = regs
->r29
;
4735 env
->regs
[30] = regs
->r30
;
4736 env
->regs
[31] = regs
->r31
;
4737 env
->sregs
[SR_PC
] = regs
->pc
;
4739 #elif defined(TARGET_MIPS)
4743 for(i
= 0; i
< 32; i
++) {
4744 env
->active_tc
.gpr
[i
] = regs
->regs
[i
];
4746 env
->active_tc
.PC
= regs
->cp0_epc
& ~(target_ulong
)1;
4747 if (regs
->cp0_epc
& 1) {
4748 env
->hflags
|= MIPS_HFLAG_M16
;
4750 if (((info
->elf_flags
& EF_MIPS_NAN2008
) != 0) !=
4751 ((env
->active_fpu
.fcr31
& (1 << FCR31_NAN2008
)) != 0)) {
4752 if ((env
->active_fpu
.fcr31_rw_bitmask
&
4753 (1 << FCR31_NAN2008
)) == 0) {
4754 fprintf(stderr
, "ELF binary's NaN mode not supported by CPU\n");
4757 if ((info
->elf_flags
& EF_MIPS_NAN2008
) != 0) {
4758 env
->active_fpu
.fcr31
|= (1 << FCR31_NAN2008
);
4760 env
->active_fpu
.fcr31
&= ~(1 << FCR31_NAN2008
);
4762 restore_snan_bit_mode(env
);
4765 #elif defined(TARGET_NIOS2)
4768 env
->regs
[1] = regs
->r1
;
4769 env
->regs
[2] = regs
->r2
;
4770 env
->regs
[3] = regs
->r3
;
4771 env
->regs
[4] = regs
->r4
;
4772 env
->regs
[5] = regs
->r5
;
4773 env
->regs
[6] = regs
->r6
;
4774 env
->regs
[7] = regs
->r7
;
4775 env
->regs
[8] = regs
->r8
;
4776 env
->regs
[9] = regs
->r9
;
4777 env
->regs
[10] = regs
->r10
;
4778 env
->regs
[11] = regs
->r11
;
4779 env
->regs
[12] = regs
->r12
;
4780 env
->regs
[13] = regs
->r13
;
4781 env
->regs
[14] = regs
->r14
;
4782 env
->regs
[15] = regs
->r15
;
4783 /* TODO: unsigned long orig_r2; */
4784 env
->regs
[R_RA
] = regs
->ra
;
4785 env
->regs
[R_FP
] = regs
->fp
;
4786 env
->regs
[R_SP
] = regs
->sp
;
4787 env
->regs
[R_GP
] = regs
->gp
;
4788 env
->regs
[CR_ESTATUS
] = regs
->estatus
;
4789 env
->regs
[R_EA
] = regs
->ea
;
4790 /* TODO: unsigned long orig_r7; */
4792 /* Emulate eret when starting thread. */
4793 env
->regs
[R_PC
] = regs
->ea
;
4795 #elif defined(TARGET_OPENRISC)
4799 for (i
= 0; i
< 32; i
++) {
4800 cpu_set_gpr(env
, i
, regs
->gpr
[i
]);
4803 cpu_set_sr(env
, regs
->sr
);
4805 #elif defined(TARGET_SH4)
4809 for(i
= 0; i
< 16; i
++) {
4810 env
->gregs
[i
] = regs
->regs
[i
];
4814 #elif defined(TARGET_ALPHA)
4818 for(i
= 0; i
< 28; i
++) {
4819 env
->ir
[i
] = ((abi_ulong
*)regs
)[i
];
4821 env
->ir
[IR_SP
] = regs
->usp
;
4824 #elif defined(TARGET_CRIS)
4826 env
->regs
[0] = regs
->r0
;
4827 env
->regs
[1] = regs
->r1
;
4828 env
->regs
[2] = regs
->r2
;
4829 env
->regs
[3] = regs
->r3
;
4830 env
->regs
[4] = regs
->r4
;
4831 env
->regs
[5] = regs
->r5
;
4832 env
->regs
[6] = regs
->r6
;
4833 env
->regs
[7] = regs
->r7
;
4834 env
->regs
[8] = regs
->r8
;
4835 env
->regs
[9] = regs
->r9
;
4836 env
->regs
[10] = regs
->r10
;
4837 env
->regs
[11] = regs
->r11
;
4838 env
->regs
[12] = regs
->r12
;
4839 env
->regs
[13] = regs
->r13
;
4840 env
->regs
[14] = info
->start_stack
;
4841 env
->regs
[15] = regs
->acr
;
4842 env
->pc
= regs
->erp
;
4844 #elif defined(TARGET_S390X)
4847 for (i
= 0; i
< 16; i
++) {
4848 env
->regs
[i
] = regs
->gprs
[i
];
4850 env
->psw
.mask
= regs
->psw
.mask
;
4851 env
->psw
.addr
= regs
->psw
.addr
;
4853 #elif defined(TARGET_TILEGX)
4856 for (i
= 0; i
< TILEGX_R_COUNT
; i
++) {
4857 env
->regs
[i
] = regs
->regs
[i
];
4859 for (i
= 0; i
< TILEGX_SPR_COUNT
; i
++) {
4864 #elif defined(TARGET_HPPA)
4867 for (i
= 1; i
< 32; i
++) {
4868 env
->gr
[i
] = regs
->gr
[i
];
4870 env
->iaoq_f
= regs
->iaoq
[0];
4871 env
->iaoq_b
= regs
->iaoq
[1];
4874 #error unsupported target CPU
4877 #if defined(TARGET_ARM) || defined(TARGET_M68K) || defined(TARGET_UNICORE32)
4878 ts
->stack_base
= info
->start_stack
;
4879 ts
->heap_base
= info
->brk
;
4880 /* This will be filled in on the first SYS_HEAPINFO call. */
4885 if (gdbserver_start(gdbstub_port
) < 0) {
4886 fprintf(stderr
, "qemu: could not open gdbserver on port %d\n",
4890 gdb_handlesig(cpu
, 0);