b172c56a6d
Always make the hypervisor timers available. Remove all TARGET_PPC64H checks, keeping a few if (0) tests for cases that cannot be properly handled with the current PowerPC CPU definition. git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3656 c046a42c-6fe2-441c-8c8c-71466251a162
2344 lines
75 KiB
C
2344 lines
75 KiB
C
/*
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* qemu user main
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*
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* Copyright (c) 2003 Fabrice Bellard
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#include <stdlib.h>
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#include <stdio.h>
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#include <stdarg.h>
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#include <string.h>
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#include <errno.h>
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#include <unistd.h>
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#include "qemu.h"
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#define DEBUG_LOGFILE "/tmp/qemu.log"
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static const char *interp_prefix = CONFIG_QEMU_PREFIX;
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const char *qemu_uname_release = CONFIG_UNAME_RELEASE;
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#if defined(__i386__) && !defined(CONFIG_STATIC)
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/* Force usage of an ELF interpreter even if it is an ELF shared
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object ! */
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const char interp[] __attribute__((section(".interp"))) = "/lib/ld-linux.so.2";
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#endif
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/* for recent libc, we add these dummy symbols which are not declared
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when generating a linked object (bug in ld ?) */
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#if (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 3)) && !defined(CONFIG_STATIC)
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asm(".globl __preinit_array_start\n"
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".globl __preinit_array_end\n"
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".globl __init_array_start\n"
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".globl __init_array_end\n"
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".globl __fini_array_start\n"
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".globl __fini_array_end\n"
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".section \".rodata\"\n"
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"__preinit_array_start:\n"
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"__preinit_array_end:\n"
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"__init_array_start:\n"
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"__init_array_end:\n"
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"__fini_array_start:\n"
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"__fini_array_end:\n"
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".long 0\n");
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#endif
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/* XXX: on x86 MAP_GROWSDOWN only works if ESP <= address + 32, so
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we allocate a bigger stack. Need a better solution, for example
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by remapping the process stack directly at the right place */
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unsigned long x86_stack_size = 512 * 1024;
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void gemu_log(const char *fmt, ...)
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{
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va_list ap;
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va_start(ap, fmt);
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vfprintf(stderr, fmt, ap);
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va_end(ap);
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}
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void cpu_outb(CPUState *env, int addr, int val)
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{
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fprintf(stderr, "outb: port=0x%04x, data=%02x\n", addr, val);
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}
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void cpu_outw(CPUState *env, int addr, int val)
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{
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fprintf(stderr, "outw: port=0x%04x, data=%04x\n", addr, val);
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}
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void cpu_outl(CPUState *env, int addr, int val)
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{
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fprintf(stderr, "outl: port=0x%04x, data=%08x\n", addr, val);
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}
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int cpu_inb(CPUState *env, int addr)
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{
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fprintf(stderr, "inb: port=0x%04x\n", addr);
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return 0;
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}
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int cpu_inw(CPUState *env, int addr)
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{
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fprintf(stderr, "inw: port=0x%04x\n", addr);
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return 0;
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}
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int cpu_inl(CPUState *env, int addr)
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{
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fprintf(stderr, "inl: port=0x%04x\n", addr);
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return 0;
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}
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int cpu_get_pic_interrupt(CPUState *env)
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{
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return -1;
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}
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/* timers for rdtsc */
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#if 0
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static uint64_t emu_time;
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int64_t cpu_get_real_ticks(void)
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{
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return emu_time++;
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}
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#endif
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#ifdef TARGET_I386
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/***********************************************************/
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/* CPUX86 core interface */
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void cpu_smm_update(CPUState *env)
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{
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}
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uint64_t cpu_get_tsc(CPUX86State *env)
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{
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return cpu_get_real_ticks();
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}
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static void write_dt(void *ptr, unsigned long addr, unsigned long limit,
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int flags)
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{
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unsigned int e1, e2;
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uint32_t *p;
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e1 = (addr << 16) | (limit & 0xffff);
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e2 = ((addr >> 16) & 0xff) | (addr & 0xff000000) | (limit & 0x000f0000);
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e2 |= flags;
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p = ptr;
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p[0] = tswapl(e1);
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p[1] = tswapl(e2);
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}
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#if TARGET_X86_64
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uint64_t idt_table[512];
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static void set_gate64(void *ptr, unsigned int type, unsigned int dpl,
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uint64_t addr, unsigned int sel)
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{
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uint32_t *p, e1, e2;
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e1 = (addr & 0xffff) | (sel << 16);
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e2 = (addr & 0xffff0000) | 0x8000 | (dpl << 13) | (type << 8);
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p = ptr;
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p[0] = tswap32(e1);
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p[1] = tswap32(e2);
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p[2] = tswap32(addr >> 32);
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p[3] = 0;
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}
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/* only dpl matters as we do only user space emulation */
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static void set_idt(int n, unsigned int dpl)
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{
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set_gate64(idt_table + n * 2, 0, dpl, 0, 0);
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}
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#else
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uint64_t idt_table[256];
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static void set_gate(void *ptr, unsigned int type, unsigned int dpl,
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uint32_t addr, unsigned int sel)
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{
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uint32_t *p, e1, e2;
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e1 = (addr & 0xffff) | (sel << 16);
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e2 = (addr & 0xffff0000) | 0x8000 | (dpl << 13) | (type << 8);
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p = ptr;
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p[0] = tswap32(e1);
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p[1] = tswap32(e2);
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}
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/* only dpl matters as we do only user space emulation */
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static void set_idt(int n, unsigned int dpl)
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{
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set_gate(idt_table + n, 0, dpl, 0, 0);
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}
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#endif
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void cpu_loop(CPUX86State *env)
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{
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int trapnr;
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abi_ulong pc;
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target_siginfo_t info;
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for(;;) {
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trapnr = cpu_x86_exec(env);
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switch(trapnr) {
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case 0x80:
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/* linux syscall from int $0x80 */
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env->regs[R_EAX] = do_syscall(env,
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env->regs[R_EAX],
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env->regs[R_EBX],
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env->regs[R_ECX],
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env->regs[R_EDX],
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env->regs[R_ESI],
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env->regs[R_EDI],
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env->regs[R_EBP]);
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break;
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#ifndef TARGET_ABI32
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case EXCP_SYSCALL:
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/* linux syscall from syscall intruction */
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env->regs[R_EAX] = do_syscall(env,
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env->regs[R_EAX],
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env->regs[R_EDI],
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env->regs[R_ESI],
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env->regs[R_EDX],
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env->regs[10],
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env->regs[8],
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env->regs[9]);
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env->eip = env->exception_next_eip;
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break;
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#endif
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case EXCP0B_NOSEG:
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case EXCP0C_STACK:
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info.si_signo = SIGBUS;
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info.si_errno = 0;
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info.si_code = TARGET_SI_KERNEL;
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info._sifields._sigfault._addr = 0;
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queue_signal(info.si_signo, &info);
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break;
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case EXCP0D_GPF:
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/* XXX: potential problem if ABI32 */
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#ifndef TARGET_X86_64
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if (env->eflags & VM_MASK) {
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handle_vm86_fault(env);
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} else
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#endif
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{
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info.si_signo = SIGSEGV;
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info.si_errno = 0;
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info.si_code = TARGET_SI_KERNEL;
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info._sifields._sigfault._addr = 0;
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queue_signal(info.si_signo, &info);
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}
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break;
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case EXCP0E_PAGE:
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info.si_signo = SIGSEGV;
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info.si_errno = 0;
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if (!(env->error_code & 1))
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info.si_code = TARGET_SEGV_MAPERR;
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else
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info.si_code = TARGET_SEGV_ACCERR;
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info._sifields._sigfault._addr = env->cr[2];
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queue_signal(info.si_signo, &info);
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break;
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case EXCP00_DIVZ:
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#ifndef TARGET_X86_64
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if (env->eflags & VM_MASK) {
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handle_vm86_trap(env, trapnr);
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} else
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#endif
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{
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/* division by zero */
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info.si_signo = SIGFPE;
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info.si_errno = 0;
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info.si_code = TARGET_FPE_INTDIV;
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info._sifields._sigfault._addr = env->eip;
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queue_signal(info.si_signo, &info);
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}
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break;
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case EXCP01_SSTP:
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case EXCP03_INT3:
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#ifndef TARGET_X86_64
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if (env->eflags & VM_MASK) {
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handle_vm86_trap(env, trapnr);
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} else
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#endif
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{
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info.si_signo = SIGTRAP;
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info.si_errno = 0;
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if (trapnr == EXCP01_SSTP) {
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info.si_code = TARGET_TRAP_BRKPT;
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info._sifields._sigfault._addr = env->eip;
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} else {
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info.si_code = TARGET_SI_KERNEL;
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info._sifields._sigfault._addr = 0;
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}
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queue_signal(info.si_signo, &info);
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}
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break;
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case EXCP04_INTO:
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case EXCP05_BOUND:
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#ifndef TARGET_X86_64
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if (env->eflags & VM_MASK) {
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handle_vm86_trap(env, trapnr);
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} else
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#endif
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{
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info.si_signo = SIGSEGV;
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info.si_errno = 0;
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info.si_code = TARGET_SI_KERNEL;
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info._sifields._sigfault._addr = 0;
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queue_signal(info.si_signo, &info);
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}
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break;
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case EXCP06_ILLOP:
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info.si_signo = SIGILL;
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info.si_errno = 0;
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info.si_code = TARGET_ILL_ILLOPN;
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info._sifields._sigfault._addr = env->eip;
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queue_signal(info.si_signo, &info);
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break;
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case EXCP_INTERRUPT:
|
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/* just indicate that signals should be handled asap */
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break;
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case EXCP_DEBUG:
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{
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int sig;
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sig = gdb_handlesig (env, TARGET_SIGTRAP);
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if (sig)
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{
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info.si_signo = sig;
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info.si_errno = 0;
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info.si_code = TARGET_TRAP_BRKPT;
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queue_signal(info.si_signo, &info);
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}
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}
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break;
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default:
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pc = env->segs[R_CS].base + env->eip;
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fprintf(stderr, "qemu: 0x%08lx: unhandled CPU exception 0x%x - aborting\n",
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(long)pc, trapnr);
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abort();
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}
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process_pending_signals(env);
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}
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}
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#endif
|
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|
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#ifdef TARGET_ARM
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|
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/* XXX: find a better solution */
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extern void tb_invalidate_page_range(abi_ulong start, abi_ulong end);
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static void arm_cache_flush(abi_ulong start, abi_ulong last)
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{
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abi_ulong addr, last1;
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|
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if (last < start)
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return;
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addr = start;
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for(;;) {
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last1 = ((addr + TARGET_PAGE_SIZE) & TARGET_PAGE_MASK) - 1;
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if (last1 > last)
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last1 = last;
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tb_invalidate_page_range(addr, last1 + 1);
|
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if (last1 == last)
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break;
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addr = last1 + 1;
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}
|
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}
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|
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void cpu_loop(CPUARMState *env)
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{
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int trapnr;
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unsigned int n, insn;
|
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target_siginfo_t info;
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uint32_t addr;
|
|
|
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for(;;) {
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trapnr = cpu_arm_exec(env);
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switch(trapnr) {
|
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case EXCP_UDEF:
|
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{
|
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TaskState *ts = env->opaque;
|
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uint32_t opcode;
|
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|
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/* we handle the FPU emulation here, as Linux */
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/* we get the opcode */
|
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/* FIXME - what to do if get_user() fails? */
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get_user_u32(opcode, env->regs[15]);
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|
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if (EmulateAll(opcode, &ts->fpa, env) == 0) {
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info.si_signo = SIGILL;
|
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info.si_errno = 0;
|
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info.si_code = TARGET_ILL_ILLOPN;
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info._sifields._sigfault._addr = env->regs[15];
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queue_signal(info.si_signo, &info);
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} else {
|
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/* increment PC */
|
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env->regs[15] += 4;
|
|
}
|
|
}
|
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break;
|
|
case EXCP_SWI:
|
|
case EXCP_BKPT:
|
|
{
|
|
env->eabi = 1;
|
|
/* system call */
|
|
if (trapnr == EXCP_BKPT) {
|
|
if (env->thumb) {
|
|
/* FIXME - what to do if get_user() fails? */
|
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get_user_u16(insn, env->regs[15]);
|
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n = insn & 0xff;
|
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env->regs[15] += 2;
|
|
} else {
|
|
/* FIXME - what to do if get_user() fails? */
|
|
get_user_u32(insn, env->regs[15]);
|
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n = (insn & 0xf) | ((insn >> 4) & 0xff0);
|
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env->regs[15] += 4;
|
|
}
|
|
} else {
|
|
if (env->thumb) {
|
|
/* FIXME - what to do if get_user() fails? */
|
|
get_user_u16(insn, env->regs[15] - 2);
|
|
n = insn & 0xff;
|
|
} else {
|
|
/* FIXME - what to do if get_user() fails? */
|
|
get_user_u32(insn, env->regs[15] - 4);
|
|
n = insn & 0xffffff;
|
|
}
|
|
}
|
|
|
|
if (n == ARM_NR_cacheflush) {
|
|
arm_cache_flush(env->regs[0], env->regs[1]);
|
|
} else if (n == ARM_NR_semihosting
|
|
|| n == ARM_NR_thumb_semihosting) {
|
|
env->regs[0] = do_arm_semihosting (env);
|
|
} else if (n == 0 || n >= ARM_SYSCALL_BASE
|
|
|| (env->thumb && n == ARM_THUMB_SYSCALL)) {
|
|
/* linux syscall */
|
|
if (env->thumb || n == 0) {
|
|
n = env->regs[7];
|
|
} else {
|
|
n -= ARM_SYSCALL_BASE;
|
|
env->eabi = 0;
|
|
}
|
|
env->regs[0] = do_syscall(env,
|
|
n,
|
|
env->regs[0],
|
|
env->regs[1],
|
|
env->regs[2],
|
|
env->regs[3],
|
|
env->regs[4],
|
|
env->regs[5]);
|
|
} else {
|
|
goto error;
|
|
}
|
|
}
|
|
break;
|
|
case EXCP_INTERRUPT:
|
|
/* just indicate that signals should be handled asap */
|
|
break;
|
|
case EXCP_PREFETCH_ABORT:
|
|
addr = env->cp15.c6_data;
|
|
goto do_segv;
|
|
case EXCP_DATA_ABORT:
|
|
addr = env->cp15.c6_insn;
|
|
goto do_segv;
|
|
do_segv:
|
|
{
|
|
info.si_signo = SIGSEGV;
|
|
info.si_errno = 0;
|
|
/* XXX: check env->error_code */
|
|
info.si_code = TARGET_SEGV_MAPERR;
|
|
info._sifields._sigfault._addr = addr;
|
|
queue_signal(info.si_signo, &info);
|
|
}
|
|
break;
|
|
case EXCP_DEBUG:
|
|
{
|
|
int sig;
|
|
|
|
sig = gdb_handlesig (env, TARGET_SIGTRAP);
|
|
if (sig)
|
|
{
|
|
info.si_signo = sig;
|
|
info.si_errno = 0;
|
|
info.si_code = TARGET_TRAP_BRKPT;
|
|
queue_signal(info.si_signo, &info);
|
|
}
|
|
}
|
|
break;
|
|
default:
|
|
error:
|
|
fprintf(stderr, "qemu: unhandled CPU exception 0x%x - aborting\n",
|
|
trapnr);
|
|
cpu_dump_state(env, stderr, fprintf, 0);
|
|
abort();
|
|
}
|
|
process_pending_signals(env);
|
|
}
|
|
}
|
|
|
|
#endif
|
|
|
|
#ifdef TARGET_SPARC
|
|
|
|
//#define DEBUG_WIN
|
|
|
|
/* WARNING: dealing with register windows _is_ complicated. More info
|
|
can be found at http://www.sics.se/~psm/sparcstack.html */
|
|
static inline int get_reg_index(CPUSPARCState *env, int cwp, int index)
|
|
{
|
|
index = (index + cwp * 16) & (16 * NWINDOWS - 1);
|
|
/* wrap handling : if cwp is on the last window, then we use the
|
|
registers 'after' the end */
|
|
if (index < 8 && env->cwp == (NWINDOWS - 1))
|
|
index += (16 * NWINDOWS);
|
|
return index;
|
|
}
|
|
|
|
/* save the register window 'cwp1' */
|
|
static inline void save_window_offset(CPUSPARCState *env, int cwp1)
|
|
{
|
|
unsigned int i;
|
|
abi_ulong sp_ptr;
|
|
|
|
sp_ptr = env->regbase[get_reg_index(env, cwp1, 6)];
|
|
#if defined(DEBUG_WIN)
|
|
printf("win_overflow: sp_ptr=0x%x save_cwp=%d\n",
|
|
(int)sp_ptr, cwp1);
|
|
#endif
|
|
for(i = 0; i < 16; i++) {
|
|
/* FIXME - what to do if put_user() fails? */
|
|
put_user_ual(env->regbase[get_reg_index(env, cwp1, 8 + i)], sp_ptr);
|
|
sp_ptr += sizeof(abi_ulong);
|
|
}
|
|
}
|
|
|
|
static void save_window(CPUSPARCState *env)
|
|
{
|
|
#ifndef TARGET_SPARC64
|
|
unsigned int new_wim;
|
|
new_wim = ((env->wim >> 1) | (env->wim << (NWINDOWS - 1))) &
|
|
((1LL << NWINDOWS) - 1);
|
|
save_window_offset(env, (env->cwp - 2) & (NWINDOWS - 1));
|
|
env->wim = new_wim;
|
|
#else
|
|
save_window_offset(env, (env->cwp - 2) & (NWINDOWS - 1));
|
|
env->cansave++;
|
|
env->canrestore--;
|
|
#endif
|
|
}
|
|
|
|
static void restore_window(CPUSPARCState *env)
|
|
{
|
|
unsigned int new_wim, i, cwp1;
|
|
abi_ulong sp_ptr;
|
|
|
|
new_wim = ((env->wim << 1) | (env->wim >> (NWINDOWS - 1))) &
|
|
((1LL << NWINDOWS) - 1);
|
|
|
|
/* restore the invalid window */
|
|
cwp1 = (env->cwp + 1) & (NWINDOWS - 1);
|
|
sp_ptr = env->regbase[get_reg_index(env, cwp1, 6)];
|
|
#if defined(DEBUG_WIN)
|
|
printf("win_underflow: sp_ptr=0x%x load_cwp=%d\n",
|
|
(int)sp_ptr, cwp1);
|
|
#endif
|
|
for(i = 0; i < 16; i++) {
|
|
/* FIXME - what to do if get_user() fails? */
|
|
get_user_ual(env->regbase[get_reg_index(env, cwp1, 8 + i)], sp_ptr);
|
|
sp_ptr += sizeof(abi_ulong);
|
|
}
|
|
env->wim = new_wim;
|
|
#ifdef TARGET_SPARC64
|
|
env->canrestore++;
|
|
if (env->cleanwin < NWINDOWS - 1)
|
|
env->cleanwin++;
|
|
env->cansave--;
|
|
#endif
|
|
}
|
|
|
|
static void flush_windows(CPUSPARCState *env)
|
|
{
|
|
int offset, cwp1;
|
|
|
|
offset = 1;
|
|
for(;;) {
|
|
/* if restore would invoke restore_window(), then we can stop */
|
|
cwp1 = (env->cwp + offset) & (NWINDOWS - 1);
|
|
if (env->wim & (1 << cwp1))
|
|
break;
|
|
save_window_offset(env, cwp1);
|
|
offset++;
|
|
}
|
|
/* set wim so that restore will reload the registers */
|
|
cwp1 = (env->cwp + 1) & (NWINDOWS - 1);
|
|
env->wim = 1 << cwp1;
|
|
#if defined(DEBUG_WIN)
|
|
printf("flush_windows: nb=%d\n", offset - 1);
|
|
#endif
|
|
}
|
|
|
|
void cpu_loop (CPUSPARCState *env)
|
|
{
|
|
int trapnr, ret;
|
|
target_siginfo_t info;
|
|
|
|
while (1) {
|
|
trapnr = cpu_sparc_exec (env);
|
|
|
|
switch (trapnr) {
|
|
#ifndef TARGET_SPARC64
|
|
case 0x88:
|
|
case 0x90:
|
|
#else
|
|
case 0x110:
|
|
case 0x16d:
|
|
#endif
|
|
ret = do_syscall (env, env->gregs[1],
|
|
env->regwptr[0], env->regwptr[1],
|
|
env->regwptr[2], env->regwptr[3],
|
|
env->regwptr[4], env->regwptr[5]);
|
|
if ((unsigned int)ret >= (unsigned int)(-515)) {
|
|
#if defined(TARGET_SPARC64) && !defined(TARGET_ABI32)
|
|
env->xcc |= PSR_CARRY;
|
|
#else
|
|
env->psr |= PSR_CARRY;
|
|
#endif
|
|
ret = -ret;
|
|
} else {
|
|
#if defined(TARGET_SPARC64) && !defined(TARGET_ABI32)
|
|
env->xcc &= ~PSR_CARRY;
|
|
#else
|
|
env->psr &= ~PSR_CARRY;
|
|
#endif
|
|
}
|
|
env->regwptr[0] = ret;
|
|
/* next instruction */
|
|
env->pc = env->npc;
|
|
env->npc = env->npc + 4;
|
|
break;
|
|
case 0x83: /* flush windows */
|
|
#ifdef TARGET_ABI32
|
|
case 0x103:
|
|
#endif
|
|
flush_windows(env);
|
|
/* next instruction */
|
|
env->pc = env->npc;
|
|
env->npc = env->npc + 4;
|
|
break;
|
|
#ifndef TARGET_SPARC64
|
|
case TT_WIN_OVF: /* window overflow */
|
|
save_window(env);
|
|
break;
|
|
case TT_WIN_UNF: /* window underflow */
|
|
restore_window(env);
|
|
break;
|
|
case TT_TFAULT:
|
|
case TT_DFAULT:
|
|
{
|
|
info.si_signo = SIGSEGV;
|
|
info.si_errno = 0;
|
|
/* XXX: check env->error_code */
|
|
info.si_code = TARGET_SEGV_MAPERR;
|
|
info._sifields._sigfault._addr = env->mmuregs[4];
|
|
queue_signal(info.si_signo, &info);
|
|
}
|
|
break;
|
|
#else
|
|
case TT_SPILL: /* window overflow */
|
|
save_window(env);
|
|
break;
|
|
case TT_FILL: /* window underflow */
|
|
restore_window(env);
|
|
break;
|
|
case TT_TFAULT:
|
|
case TT_DFAULT:
|
|
{
|
|
info.si_signo = SIGSEGV;
|
|
info.si_errno = 0;
|
|
/* XXX: check env->error_code */
|
|
info.si_code = TARGET_SEGV_MAPERR;
|
|
if (trapnr == TT_DFAULT)
|
|
info._sifields._sigfault._addr = env->dmmuregs[4];
|
|
else
|
|
info._sifields._sigfault._addr = env->tpc[env->tl];
|
|
queue_signal(info.si_signo, &info);
|
|
}
|
|
break;
|
|
#ifndef TARGET_ABI32
|
|
case 0x16e:
|
|
flush_windows(env);
|
|
sparc64_get_context(env);
|
|
break;
|
|
case 0x16f:
|
|
flush_windows(env);
|
|
sparc64_set_context(env);
|
|
break;
|
|
#endif
|
|
#endif
|
|
case EXCP_INTERRUPT:
|
|
/* just indicate that signals should be handled asap */
|
|
break;
|
|
case EXCP_DEBUG:
|
|
{
|
|
int sig;
|
|
|
|
sig = gdb_handlesig (env, TARGET_SIGTRAP);
|
|
if (sig)
|
|
{
|
|
info.si_signo = sig;
|
|
info.si_errno = 0;
|
|
info.si_code = TARGET_TRAP_BRKPT;
|
|
queue_signal(info.si_signo, &info);
|
|
}
|
|
}
|
|
break;
|
|
default:
|
|
printf ("Unhandled trap: 0x%x\n", trapnr);
|
|
cpu_dump_state(env, stderr, fprintf, 0);
|
|
exit (1);
|
|
}
|
|
process_pending_signals (env);
|
|
}
|
|
}
|
|
|
|
#endif
|
|
|
|
#ifdef TARGET_PPC
|
|
static inline uint64_t cpu_ppc_get_tb (CPUState *env)
|
|
{
|
|
/* TO FIX */
|
|
return 0;
|
|
}
|
|
|
|
uint32_t cpu_ppc_load_tbl (CPUState *env)
|
|
{
|
|
return cpu_ppc_get_tb(env) & 0xFFFFFFFF;
|
|
}
|
|
|
|
uint32_t cpu_ppc_load_tbu (CPUState *env)
|
|
{
|
|
return cpu_ppc_get_tb(env) >> 32;
|
|
}
|
|
|
|
uint32_t cpu_ppc_load_atbl (CPUState *env)
|
|
{
|
|
return cpu_ppc_get_tb(env) & 0xFFFFFFFF;
|
|
}
|
|
|
|
uint32_t cpu_ppc_load_atbu (CPUState *env)
|
|
{
|
|
return cpu_ppc_get_tb(env) >> 32;
|
|
}
|
|
|
|
uint32_t cpu_ppc601_load_rtcu (CPUState *env)
|
|
__attribute__ (( alias ("cpu_ppc_load_tbu") ));
|
|
|
|
uint32_t cpu_ppc601_load_rtcl (CPUState *env)
|
|
{
|
|
return cpu_ppc_load_tbl(env) & 0x3FFFFF80;
|
|
}
|
|
|
|
/* XXX: to be fixed */
|
|
int ppc_dcr_read (ppc_dcr_t *dcr_env, int dcrn, target_ulong *valp)
|
|
{
|
|
return -1;
|
|
}
|
|
|
|
int ppc_dcr_write (ppc_dcr_t *dcr_env, int dcrn, target_ulong val)
|
|
{
|
|
return -1;
|
|
}
|
|
|
|
#define EXCP_DUMP(env, fmt, args...) \
|
|
do { \
|
|
fprintf(stderr, fmt , ##args); \
|
|
cpu_dump_state(env, stderr, fprintf, 0); \
|
|
if (loglevel != 0) { \
|
|
fprintf(logfile, fmt , ##args); \
|
|
cpu_dump_state(env, logfile, fprintf, 0); \
|
|
} \
|
|
} while (0)
|
|
|
|
void cpu_loop(CPUPPCState *env)
|
|
{
|
|
target_siginfo_t info;
|
|
int trapnr;
|
|
uint32_t ret;
|
|
|
|
for(;;) {
|
|
trapnr = cpu_ppc_exec(env);
|
|
switch(trapnr) {
|
|
case POWERPC_EXCP_NONE:
|
|
/* Just go on */
|
|
break;
|
|
case POWERPC_EXCP_CRITICAL: /* Critical input */
|
|
cpu_abort(env, "Critical interrupt while in user mode. "
|
|
"Aborting\n");
|
|
break;
|
|
case POWERPC_EXCP_MCHECK: /* Machine check exception */
|
|
cpu_abort(env, "Machine check exception while in user mode. "
|
|
"Aborting\n");
|
|
break;
|
|
case POWERPC_EXCP_DSI: /* Data storage exception */
|
|
EXCP_DUMP(env, "Invalid data memory access: 0x" ADDRX "\n",
|
|
env->spr[SPR_DAR]);
|
|
/* XXX: check this. Seems bugged */
|
|
switch (env->error_code & 0xFF000000) {
|
|
case 0x40000000:
|
|
info.si_signo = TARGET_SIGSEGV;
|
|
info.si_errno = 0;
|
|
info.si_code = TARGET_SEGV_MAPERR;
|
|
break;
|
|
case 0x04000000:
|
|
info.si_signo = TARGET_SIGILL;
|
|
info.si_errno = 0;
|
|
info.si_code = TARGET_ILL_ILLADR;
|
|
break;
|
|
case 0x08000000:
|
|
info.si_signo = TARGET_SIGSEGV;
|
|
info.si_errno = 0;
|
|
info.si_code = TARGET_SEGV_ACCERR;
|
|
break;
|
|
default:
|
|
/* Let's send a regular segfault... */
|
|
EXCP_DUMP(env, "Invalid segfault errno (%02x)\n",
|
|
env->error_code);
|
|
info.si_signo = TARGET_SIGSEGV;
|
|
info.si_errno = 0;
|
|
info.si_code = TARGET_SEGV_MAPERR;
|
|
break;
|
|
}
|
|
info._sifields._sigfault._addr = env->nip;
|
|
queue_signal(info.si_signo, &info);
|
|
break;
|
|
case POWERPC_EXCP_ISI: /* Instruction storage exception */
|
|
EXCP_DUMP(env, "Invalid instruction fetch: 0x\n" ADDRX "\n",
|
|
env->spr[SPR_SRR0]);
|
|
/* XXX: check this */
|
|
switch (env->error_code & 0xFF000000) {
|
|
case 0x40000000:
|
|
info.si_signo = TARGET_SIGSEGV;
|
|
info.si_errno = 0;
|
|
info.si_code = TARGET_SEGV_MAPERR;
|
|
break;
|
|
case 0x10000000:
|
|
case 0x08000000:
|
|
info.si_signo = TARGET_SIGSEGV;
|
|
info.si_errno = 0;
|
|
info.si_code = TARGET_SEGV_ACCERR;
|
|
break;
|
|
default:
|
|
/* Let's send a regular segfault... */
|
|
EXCP_DUMP(env, "Invalid segfault errno (%02x)\n",
|
|
env->error_code);
|
|
info.si_signo = TARGET_SIGSEGV;
|
|
info.si_errno = 0;
|
|
info.si_code = TARGET_SEGV_MAPERR;
|
|
break;
|
|
}
|
|
info._sifields._sigfault._addr = env->nip - 4;
|
|
queue_signal(info.si_signo, &info);
|
|
break;
|
|
case POWERPC_EXCP_EXTERNAL: /* External input */
|
|
cpu_abort(env, "External interrupt while in user mode. "
|
|
"Aborting\n");
|
|
break;
|
|
case POWERPC_EXCP_ALIGN: /* Alignment exception */
|
|
EXCP_DUMP(env, "Unaligned memory access\n");
|
|
/* XXX: check this */
|
|
info.si_signo = TARGET_SIGBUS;
|
|
info.si_errno = 0;
|
|
info.si_code = TARGET_BUS_ADRALN;
|
|
info._sifields._sigfault._addr = env->nip - 4;
|
|
queue_signal(info.si_signo, &info);
|
|
break;
|
|
case POWERPC_EXCP_PROGRAM: /* Program exception */
|
|
/* XXX: check this */
|
|
switch (env->error_code & ~0xF) {
|
|
case POWERPC_EXCP_FP:
|
|
EXCP_DUMP(env, "Floating point program exception\n");
|
|
info.si_signo = TARGET_SIGFPE;
|
|
info.si_errno = 0;
|
|
switch (env->error_code & 0xF) {
|
|
case POWERPC_EXCP_FP_OX:
|
|
info.si_code = TARGET_FPE_FLTOVF;
|
|
break;
|
|
case POWERPC_EXCP_FP_UX:
|
|
info.si_code = TARGET_FPE_FLTUND;
|
|
break;
|
|
case POWERPC_EXCP_FP_ZX:
|
|
case POWERPC_EXCP_FP_VXZDZ:
|
|
info.si_code = TARGET_FPE_FLTDIV;
|
|
break;
|
|
case POWERPC_EXCP_FP_XX:
|
|
info.si_code = TARGET_FPE_FLTRES;
|
|
break;
|
|
case POWERPC_EXCP_FP_VXSOFT:
|
|
info.si_code = TARGET_FPE_FLTINV;
|
|
break;
|
|
case POWERPC_EXCP_FP_VXSNAN:
|
|
case POWERPC_EXCP_FP_VXISI:
|
|
case POWERPC_EXCP_FP_VXIDI:
|
|
case POWERPC_EXCP_FP_VXIMZ:
|
|
case POWERPC_EXCP_FP_VXVC:
|
|
case POWERPC_EXCP_FP_VXSQRT:
|
|
case POWERPC_EXCP_FP_VXCVI:
|
|
info.si_code = TARGET_FPE_FLTSUB;
|
|
break;
|
|
default:
|
|
EXCP_DUMP(env, "Unknown floating point exception (%02x)\n",
|
|
env->error_code);
|
|
break;
|
|
}
|
|
break;
|
|
case POWERPC_EXCP_INVAL:
|
|
EXCP_DUMP(env, "Invalid instruction\n");
|
|
info.si_signo = TARGET_SIGILL;
|
|
info.si_errno = 0;
|
|
switch (env->error_code & 0xF) {
|
|
case POWERPC_EXCP_INVAL_INVAL:
|
|
info.si_code = TARGET_ILL_ILLOPC;
|
|
break;
|
|
case POWERPC_EXCP_INVAL_LSWX:
|
|
info.si_code = TARGET_ILL_ILLOPN;
|
|
break;
|
|
case POWERPC_EXCP_INVAL_SPR:
|
|
info.si_code = TARGET_ILL_PRVREG;
|
|
break;
|
|
case POWERPC_EXCP_INVAL_FP:
|
|
info.si_code = TARGET_ILL_COPROC;
|
|
break;
|
|
default:
|
|
EXCP_DUMP(env, "Unknown invalid operation (%02x)\n",
|
|
env->error_code & 0xF);
|
|
info.si_code = TARGET_ILL_ILLADR;
|
|
break;
|
|
}
|
|
break;
|
|
case POWERPC_EXCP_PRIV:
|
|
EXCP_DUMP(env, "Privilege violation\n");
|
|
info.si_signo = TARGET_SIGILL;
|
|
info.si_errno = 0;
|
|
switch (env->error_code & 0xF) {
|
|
case POWERPC_EXCP_PRIV_OPC:
|
|
info.si_code = TARGET_ILL_PRVOPC;
|
|
break;
|
|
case POWERPC_EXCP_PRIV_REG:
|
|
info.si_code = TARGET_ILL_PRVREG;
|
|
break;
|
|
default:
|
|
EXCP_DUMP(env, "Unknown privilege violation (%02x)\n",
|
|
env->error_code & 0xF);
|
|
info.si_code = TARGET_ILL_PRVOPC;
|
|
break;
|
|
}
|
|
break;
|
|
case POWERPC_EXCP_TRAP:
|
|
cpu_abort(env, "Tried to call a TRAP\n");
|
|
break;
|
|
default:
|
|
/* Should not happen ! */
|
|
cpu_abort(env, "Unknown program exception (%02x)\n",
|
|
env->error_code);
|
|
break;
|
|
}
|
|
info._sifields._sigfault._addr = env->nip - 4;
|
|
queue_signal(info.si_signo, &info);
|
|
break;
|
|
case POWERPC_EXCP_FPU: /* Floating-point unavailable exception */
|
|
EXCP_DUMP(env, "No floating point allowed\n");
|
|
info.si_signo = TARGET_SIGILL;
|
|
info.si_errno = 0;
|
|
info.si_code = TARGET_ILL_COPROC;
|
|
info._sifields._sigfault._addr = env->nip - 4;
|
|
queue_signal(info.si_signo, &info);
|
|
break;
|
|
case POWERPC_EXCP_SYSCALL: /* System call exception */
|
|
cpu_abort(env, "Syscall exception while in user mode. "
|
|
"Aborting\n");
|
|
break;
|
|
case POWERPC_EXCP_APU: /* Auxiliary processor unavailable */
|
|
EXCP_DUMP(env, "No APU instruction allowed\n");
|
|
info.si_signo = TARGET_SIGILL;
|
|
info.si_errno = 0;
|
|
info.si_code = TARGET_ILL_COPROC;
|
|
info._sifields._sigfault._addr = env->nip - 4;
|
|
queue_signal(info.si_signo, &info);
|
|
break;
|
|
case POWERPC_EXCP_DECR: /* Decrementer exception */
|
|
cpu_abort(env, "Decrementer interrupt while in user mode. "
|
|
"Aborting\n");
|
|
break;
|
|
case POWERPC_EXCP_FIT: /* Fixed-interval timer interrupt */
|
|
cpu_abort(env, "Fix interval timer interrupt while in user mode. "
|
|
"Aborting\n");
|
|
break;
|
|
case POWERPC_EXCP_WDT: /* Watchdog timer interrupt */
|
|
cpu_abort(env, "Watchdog timer interrupt while in user mode. "
|
|
"Aborting\n");
|
|
break;
|
|
case POWERPC_EXCP_DTLB: /* Data TLB error */
|
|
cpu_abort(env, "Data TLB exception while in user mode. "
|
|
"Aborting\n");
|
|
break;
|
|
case POWERPC_EXCP_ITLB: /* Instruction TLB error */
|
|
cpu_abort(env, "Instruction TLB exception while in user mode. "
|
|
"Aborting\n");
|
|
break;
|
|
case POWERPC_EXCP_DEBUG: /* Debug interrupt */
|
|
/* XXX: check this */
|
|
{
|
|
int sig;
|
|
|
|
sig = gdb_handlesig(env, TARGET_SIGTRAP);
|
|
if (sig) {
|
|
info.si_signo = sig;
|
|
info.si_errno = 0;
|
|
info.si_code = TARGET_TRAP_BRKPT;
|
|
queue_signal(info.si_signo, &info);
|
|
}
|
|
}
|
|
break;
|
|
case POWERPC_EXCP_SPEU: /* SPE/embedded floating-point unavail. */
|
|
EXCP_DUMP(env, "No SPE/floating-point instruction allowed\n");
|
|
info.si_signo = TARGET_SIGILL;
|
|
info.si_errno = 0;
|
|
info.si_code = TARGET_ILL_COPROC;
|
|
info._sifields._sigfault._addr = env->nip - 4;
|
|
queue_signal(info.si_signo, &info);
|
|
break;
|
|
case POWERPC_EXCP_EFPDI: /* Embedded floating-point data IRQ */
|
|
cpu_abort(env, "Embedded floating-point data IRQ not handled\n");
|
|
break;
|
|
case POWERPC_EXCP_EFPRI: /* Embedded floating-point round IRQ */
|
|
cpu_abort(env, "Embedded floating-point round IRQ not handled\n");
|
|
break;
|
|
case POWERPC_EXCP_EPERFM: /* Embedded performance monitor IRQ */
|
|
cpu_abort(env, "Performance monitor exception not handled\n");
|
|
break;
|
|
case POWERPC_EXCP_DOORI: /* Embedded doorbell interrupt */
|
|
cpu_abort(env, "Doorbell interrupt while in user mode. "
|
|
"Aborting\n");
|
|
break;
|
|
case POWERPC_EXCP_DOORCI: /* Embedded doorbell critical interrupt */
|
|
cpu_abort(env, "Doorbell critical interrupt while in user mode. "
|
|
"Aborting\n");
|
|
break;
|
|
case POWERPC_EXCP_RESET: /* System reset exception */
|
|
cpu_abort(env, "Reset interrupt while in user mode. "
|
|
"Aborting\n");
|
|
break;
|
|
case POWERPC_EXCP_DSEG: /* Data segment exception */
|
|
cpu_abort(env, "Data segment exception while in user mode. "
|
|
"Aborting\n");
|
|
break;
|
|
case POWERPC_EXCP_ISEG: /* Instruction segment exception */
|
|
cpu_abort(env, "Instruction segment exception "
|
|
"while in user mode. Aborting\n");
|
|
break;
|
|
/* PowerPC 64 with hypervisor mode support */
|
|
case POWERPC_EXCP_HDECR: /* Hypervisor decrementer exception */
|
|
cpu_abort(env, "Hypervisor decrementer interrupt "
|
|
"while in user mode. Aborting\n");
|
|
break;
|
|
case POWERPC_EXCP_TRACE: /* Trace exception */
|
|
/* Nothing to do:
|
|
* we use this exception to emulate step-by-step execution mode.
|
|
*/
|
|
break;
|
|
/* PowerPC 64 with hypervisor mode support */
|
|
case POWERPC_EXCP_HDSI: /* Hypervisor data storage exception */
|
|
cpu_abort(env, "Hypervisor data storage exception "
|
|
"while in user mode. Aborting\n");
|
|
break;
|
|
case POWERPC_EXCP_HISI: /* Hypervisor instruction storage excp */
|
|
cpu_abort(env, "Hypervisor instruction storage exception "
|
|
"while in user mode. Aborting\n");
|
|
break;
|
|
case POWERPC_EXCP_HDSEG: /* Hypervisor data segment exception */
|
|
cpu_abort(env, "Hypervisor data segment exception "
|
|
"while in user mode. Aborting\n");
|
|
break;
|
|
case POWERPC_EXCP_HISEG: /* Hypervisor instruction segment excp */
|
|
cpu_abort(env, "Hypervisor instruction segment exception "
|
|
"while in user mode. Aborting\n");
|
|
break;
|
|
case POWERPC_EXCP_VPU: /* Vector unavailable exception */
|
|
EXCP_DUMP(env, "No Altivec instructions allowed\n");
|
|
info.si_signo = TARGET_SIGILL;
|
|
info.si_errno = 0;
|
|
info.si_code = TARGET_ILL_COPROC;
|
|
info._sifields._sigfault._addr = env->nip - 4;
|
|
queue_signal(info.si_signo, &info);
|
|
break;
|
|
case POWERPC_EXCP_PIT: /* Programmable interval timer IRQ */
|
|
cpu_abort(env, "Programable interval timer interrupt "
|
|
"while in user mode. Aborting\n");
|
|
break;
|
|
case POWERPC_EXCP_IO: /* IO error exception */
|
|
cpu_abort(env, "IO error exception while in user mode. "
|
|
"Aborting\n");
|
|
break;
|
|
case POWERPC_EXCP_RUNM: /* Run mode exception */
|
|
cpu_abort(env, "Run mode exception while in user mode. "
|
|
"Aborting\n");
|
|
break;
|
|
case POWERPC_EXCP_EMUL: /* Emulation trap exception */
|
|
cpu_abort(env, "Emulation trap exception not handled\n");
|
|
break;
|
|
case POWERPC_EXCP_IFTLB: /* Instruction fetch TLB error */
|
|
cpu_abort(env, "Instruction fetch TLB exception "
|
|
"while in user-mode. Aborting");
|
|
break;
|
|
case POWERPC_EXCP_DLTLB: /* Data load TLB miss */
|
|
cpu_abort(env, "Data load TLB exception while in user-mode. "
|
|
"Aborting");
|
|
break;
|
|
case POWERPC_EXCP_DSTLB: /* Data store TLB miss */
|
|
cpu_abort(env, "Data store TLB exception while in user-mode. "
|
|
"Aborting");
|
|
break;
|
|
case POWERPC_EXCP_FPA: /* Floating-point assist exception */
|
|
cpu_abort(env, "Floating-point assist exception not handled\n");
|
|
break;
|
|
case POWERPC_EXCP_IABR: /* Instruction address breakpoint */
|
|
cpu_abort(env, "Instruction address breakpoint exception "
|
|
"not handled\n");
|
|
break;
|
|
case POWERPC_EXCP_SMI: /* System management interrupt */
|
|
cpu_abort(env, "System management interrupt while in user mode. "
|
|
"Aborting\n");
|
|
break;
|
|
case POWERPC_EXCP_THERM: /* Thermal interrupt */
|
|
cpu_abort(env, "Thermal interrupt interrupt while in user mode. "
|
|
"Aborting\n");
|
|
break;
|
|
case POWERPC_EXCP_PERFM: /* Embedded performance monitor IRQ */
|
|
cpu_abort(env, "Performance monitor exception not handled\n");
|
|
break;
|
|
case POWERPC_EXCP_VPUA: /* Vector assist exception */
|
|
cpu_abort(env, "Vector assist exception not handled\n");
|
|
break;
|
|
case POWERPC_EXCP_SOFTP: /* Soft patch exception */
|
|
cpu_abort(env, "Soft patch exception not handled\n");
|
|
break;
|
|
case POWERPC_EXCP_MAINT: /* Maintenance exception */
|
|
cpu_abort(env, "Maintenance exception while in user mode. "
|
|
"Aborting\n");
|
|
break;
|
|
case POWERPC_EXCP_STOP: /* stop translation */
|
|
/* We did invalidate the instruction cache. Go on */
|
|
break;
|
|
case POWERPC_EXCP_BRANCH: /* branch instruction: */
|
|
/* We just stopped because of a branch. Go on */
|
|
break;
|
|
case POWERPC_EXCP_SYSCALL_USER:
|
|
/* system call in user-mode emulation */
|
|
/* WARNING:
|
|
* PPC ABI uses overflow flag in cr0 to signal an error
|
|
* in syscalls.
|
|
*/
|
|
#if 0
|
|
printf("syscall %d 0x%08x 0x%08x 0x%08x 0x%08x\n", env->gpr[0],
|
|
env->gpr[3], env->gpr[4], env->gpr[5], env->gpr[6]);
|
|
#endif
|
|
env->crf[0] &= ~0x1;
|
|
ret = do_syscall(env, env->gpr[0], env->gpr[3], env->gpr[4],
|
|
env->gpr[5], env->gpr[6], env->gpr[7],
|
|
env->gpr[8]);
|
|
if (ret > (uint32_t)(-515)) {
|
|
env->crf[0] |= 0x1;
|
|
ret = -ret;
|
|
}
|
|
env->gpr[3] = ret;
|
|
#if 0
|
|
printf("syscall returned 0x%08x (%d)\n", ret, ret);
|
|
#endif
|
|
break;
|
|
case EXCP_INTERRUPT:
|
|
/* just indicate that signals should be handled asap */
|
|
break;
|
|
default:
|
|
cpu_abort(env, "Unknown exception 0x%d. Aborting\n", trapnr);
|
|
break;
|
|
}
|
|
process_pending_signals(env);
|
|
}
|
|
}
|
|
#endif
|
|
|
|
#ifdef TARGET_MIPS
|
|
|
|
#define MIPS_SYS(name, args) args,
|
|
|
|
static const uint8_t mips_syscall_args[] = {
|
|
MIPS_SYS(sys_syscall , 0) /* 4000 */
|
|
MIPS_SYS(sys_exit , 1)
|
|
MIPS_SYS(sys_fork , 0)
|
|
MIPS_SYS(sys_read , 3)
|
|
MIPS_SYS(sys_write , 3)
|
|
MIPS_SYS(sys_open , 3) /* 4005 */
|
|
MIPS_SYS(sys_close , 1)
|
|
MIPS_SYS(sys_waitpid , 3)
|
|
MIPS_SYS(sys_creat , 2)
|
|
MIPS_SYS(sys_link , 2)
|
|
MIPS_SYS(sys_unlink , 1) /* 4010 */
|
|
MIPS_SYS(sys_execve , 0)
|
|
MIPS_SYS(sys_chdir , 1)
|
|
MIPS_SYS(sys_time , 1)
|
|
MIPS_SYS(sys_mknod , 3)
|
|
MIPS_SYS(sys_chmod , 2) /* 4015 */
|
|
MIPS_SYS(sys_lchown , 3)
|
|
MIPS_SYS(sys_ni_syscall , 0)
|
|
MIPS_SYS(sys_ni_syscall , 0) /* was sys_stat */
|
|
MIPS_SYS(sys_lseek , 3)
|
|
MIPS_SYS(sys_getpid , 0) /* 4020 */
|
|
MIPS_SYS(sys_mount , 5)
|
|
MIPS_SYS(sys_oldumount , 1)
|
|
MIPS_SYS(sys_setuid , 1)
|
|
MIPS_SYS(sys_getuid , 0)
|
|
MIPS_SYS(sys_stime , 1) /* 4025 */
|
|
MIPS_SYS(sys_ptrace , 4)
|
|
MIPS_SYS(sys_alarm , 1)
|
|
MIPS_SYS(sys_ni_syscall , 0) /* was sys_fstat */
|
|
MIPS_SYS(sys_pause , 0)
|
|
MIPS_SYS(sys_utime , 2) /* 4030 */
|
|
MIPS_SYS(sys_ni_syscall , 0)
|
|
MIPS_SYS(sys_ni_syscall , 0)
|
|
MIPS_SYS(sys_access , 2)
|
|
MIPS_SYS(sys_nice , 1)
|
|
MIPS_SYS(sys_ni_syscall , 0) /* 4035 */
|
|
MIPS_SYS(sys_sync , 0)
|
|
MIPS_SYS(sys_kill , 2)
|
|
MIPS_SYS(sys_rename , 2)
|
|
MIPS_SYS(sys_mkdir , 2)
|
|
MIPS_SYS(sys_rmdir , 1) /* 4040 */
|
|
MIPS_SYS(sys_dup , 1)
|
|
MIPS_SYS(sys_pipe , 0)
|
|
MIPS_SYS(sys_times , 1)
|
|
MIPS_SYS(sys_ni_syscall , 0)
|
|
MIPS_SYS(sys_brk , 1) /* 4045 */
|
|
MIPS_SYS(sys_setgid , 1)
|
|
MIPS_SYS(sys_getgid , 0)
|
|
MIPS_SYS(sys_ni_syscall , 0) /* was signal(2) */
|
|
MIPS_SYS(sys_geteuid , 0)
|
|
MIPS_SYS(sys_getegid , 0) /* 4050 */
|
|
MIPS_SYS(sys_acct , 0)
|
|
MIPS_SYS(sys_umount , 2)
|
|
MIPS_SYS(sys_ni_syscall , 0)
|
|
MIPS_SYS(sys_ioctl , 3)
|
|
MIPS_SYS(sys_fcntl , 3) /* 4055 */
|
|
MIPS_SYS(sys_ni_syscall , 2)
|
|
MIPS_SYS(sys_setpgid , 2)
|
|
MIPS_SYS(sys_ni_syscall , 0)
|
|
MIPS_SYS(sys_olduname , 1)
|
|
MIPS_SYS(sys_umask , 1) /* 4060 */
|
|
MIPS_SYS(sys_chroot , 1)
|
|
MIPS_SYS(sys_ustat , 2)
|
|
MIPS_SYS(sys_dup2 , 2)
|
|
MIPS_SYS(sys_getppid , 0)
|
|
MIPS_SYS(sys_getpgrp , 0) /* 4065 */
|
|
MIPS_SYS(sys_setsid , 0)
|
|
MIPS_SYS(sys_sigaction , 3)
|
|
MIPS_SYS(sys_sgetmask , 0)
|
|
MIPS_SYS(sys_ssetmask , 1)
|
|
MIPS_SYS(sys_setreuid , 2) /* 4070 */
|
|
MIPS_SYS(sys_setregid , 2)
|
|
MIPS_SYS(sys_sigsuspend , 0)
|
|
MIPS_SYS(sys_sigpending , 1)
|
|
MIPS_SYS(sys_sethostname , 2)
|
|
MIPS_SYS(sys_setrlimit , 2) /* 4075 */
|
|
MIPS_SYS(sys_getrlimit , 2)
|
|
MIPS_SYS(sys_getrusage , 2)
|
|
MIPS_SYS(sys_gettimeofday, 2)
|
|
MIPS_SYS(sys_settimeofday, 2)
|
|
MIPS_SYS(sys_getgroups , 2) /* 4080 */
|
|
MIPS_SYS(sys_setgroups , 2)
|
|
MIPS_SYS(sys_ni_syscall , 0) /* old_select */
|
|
MIPS_SYS(sys_symlink , 2)
|
|
MIPS_SYS(sys_ni_syscall , 0) /* was sys_lstat */
|
|
MIPS_SYS(sys_readlink , 3) /* 4085 */
|
|
MIPS_SYS(sys_uselib , 1)
|
|
MIPS_SYS(sys_swapon , 2)
|
|
MIPS_SYS(sys_reboot , 3)
|
|
MIPS_SYS(old_readdir , 3)
|
|
MIPS_SYS(old_mmap , 6) /* 4090 */
|
|
MIPS_SYS(sys_munmap , 2)
|
|
MIPS_SYS(sys_truncate , 2)
|
|
MIPS_SYS(sys_ftruncate , 2)
|
|
MIPS_SYS(sys_fchmod , 2)
|
|
MIPS_SYS(sys_fchown , 3) /* 4095 */
|
|
MIPS_SYS(sys_getpriority , 2)
|
|
MIPS_SYS(sys_setpriority , 3)
|
|
MIPS_SYS(sys_ni_syscall , 0)
|
|
MIPS_SYS(sys_statfs , 2)
|
|
MIPS_SYS(sys_fstatfs , 2) /* 4100 */
|
|
MIPS_SYS(sys_ni_syscall , 0) /* was ioperm(2) */
|
|
MIPS_SYS(sys_socketcall , 2)
|
|
MIPS_SYS(sys_syslog , 3)
|
|
MIPS_SYS(sys_setitimer , 3)
|
|
MIPS_SYS(sys_getitimer , 2) /* 4105 */
|
|
MIPS_SYS(sys_newstat , 2)
|
|
MIPS_SYS(sys_newlstat , 2)
|
|
MIPS_SYS(sys_newfstat , 2)
|
|
MIPS_SYS(sys_uname , 1)
|
|
MIPS_SYS(sys_ni_syscall , 0) /* 4110 was iopl(2) */
|
|
MIPS_SYS(sys_vhangup , 0)
|
|
MIPS_SYS(sys_ni_syscall , 0) /* was sys_idle() */
|
|
MIPS_SYS(sys_ni_syscall , 0) /* was sys_vm86 */
|
|
MIPS_SYS(sys_wait4 , 4)
|
|
MIPS_SYS(sys_swapoff , 1) /* 4115 */
|
|
MIPS_SYS(sys_sysinfo , 1)
|
|
MIPS_SYS(sys_ipc , 6)
|
|
MIPS_SYS(sys_fsync , 1)
|
|
MIPS_SYS(sys_sigreturn , 0)
|
|
MIPS_SYS(sys_clone , 0) /* 4120 */
|
|
MIPS_SYS(sys_setdomainname, 2)
|
|
MIPS_SYS(sys_newuname , 1)
|
|
MIPS_SYS(sys_ni_syscall , 0) /* sys_modify_ldt */
|
|
MIPS_SYS(sys_adjtimex , 1)
|
|
MIPS_SYS(sys_mprotect , 3) /* 4125 */
|
|
MIPS_SYS(sys_sigprocmask , 3)
|
|
MIPS_SYS(sys_ni_syscall , 0) /* was create_module */
|
|
MIPS_SYS(sys_init_module , 5)
|
|
MIPS_SYS(sys_delete_module, 1)
|
|
MIPS_SYS(sys_ni_syscall , 0) /* 4130 was get_kernel_syms */
|
|
MIPS_SYS(sys_quotactl , 0)
|
|
MIPS_SYS(sys_getpgid , 1)
|
|
MIPS_SYS(sys_fchdir , 1)
|
|
MIPS_SYS(sys_bdflush , 2)
|
|
MIPS_SYS(sys_sysfs , 3) /* 4135 */
|
|
MIPS_SYS(sys_personality , 1)
|
|
MIPS_SYS(sys_ni_syscall , 0) /* for afs_syscall */
|
|
MIPS_SYS(sys_setfsuid , 1)
|
|
MIPS_SYS(sys_setfsgid , 1)
|
|
MIPS_SYS(sys_llseek , 5) /* 4140 */
|
|
MIPS_SYS(sys_getdents , 3)
|
|
MIPS_SYS(sys_select , 5)
|
|
MIPS_SYS(sys_flock , 2)
|
|
MIPS_SYS(sys_msync , 3)
|
|
MIPS_SYS(sys_readv , 3) /* 4145 */
|
|
MIPS_SYS(sys_writev , 3)
|
|
MIPS_SYS(sys_cacheflush , 3)
|
|
MIPS_SYS(sys_cachectl , 3)
|
|
MIPS_SYS(sys_sysmips , 4)
|
|
MIPS_SYS(sys_ni_syscall , 0) /* 4150 */
|
|
MIPS_SYS(sys_getsid , 1)
|
|
MIPS_SYS(sys_fdatasync , 0)
|
|
MIPS_SYS(sys_sysctl , 1)
|
|
MIPS_SYS(sys_mlock , 2)
|
|
MIPS_SYS(sys_munlock , 2) /* 4155 */
|
|
MIPS_SYS(sys_mlockall , 1)
|
|
MIPS_SYS(sys_munlockall , 0)
|
|
MIPS_SYS(sys_sched_setparam, 2)
|
|
MIPS_SYS(sys_sched_getparam, 2)
|
|
MIPS_SYS(sys_sched_setscheduler, 3) /* 4160 */
|
|
MIPS_SYS(sys_sched_getscheduler, 1)
|
|
MIPS_SYS(sys_sched_yield , 0)
|
|
MIPS_SYS(sys_sched_get_priority_max, 1)
|
|
MIPS_SYS(sys_sched_get_priority_min, 1)
|
|
MIPS_SYS(sys_sched_rr_get_interval, 2) /* 4165 */
|
|
MIPS_SYS(sys_nanosleep, 2)
|
|
MIPS_SYS(sys_mremap , 4)
|
|
MIPS_SYS(sys_accept , 3)
|
|
MIPS_SYS(sys_bind , 3)
|
|
MIPS_SYS(sys_connect , 3) /* 4170 */
|
|
MIPS_SYS(sys_getpeername , 3)
|
|
MIPS_SYS(sys_getsockname , 3)
|
|
MIPS_SYS(sys_getsockopt , 5)
|
|
MIPS_SYS(sys_listen , 2)
|
|
MIPS_SYS(sys_recv , 4) /* 4175 */
|
|
MIPS_SYS(sys_recvfrom , 6)
|
|
MIPS_SYS(sys_recvmsg , 3)
|
|
MIPS_SYS(sys_send , 4)
|
|
MIPS_SYS(sys_sendmsg , 3)
|
|
MIPS_SYS(sys_sendto , 6) /* 4180 */
|
|
MIPS_SYS(sys_setsockopt , 5)
|
|
MIPS_SYS(sys_shutdown , 2)
|
|
MIPS_SYS(sys_socket , 3)
|
|
MIPS_SYS(sys_socketpair , 4)
|
|
MIPS_SYS(sys_setresuid , 3) /* 4185 */
|
|
MIPS_SYS(sys_getresuid , 3)
|
|
MIPS_SYS(sys_ni_syscall , 0) /* was sys_query_module */
|
|
MIPS_SYS(sys_poll , 3)
|
|
MIPS_SYS(sys_nfsservctl , 3)
|
|
MIPS_SYS(sys_setresgid , 3) /* 4190 */
|
|
MIPS_SYS(sys_getresgid , 3)
|
|
MIPS_SYS(sys_prctl , 5)
|
|
MIPS_SYS(sys_rt_sigreturn, 0)
|
|
MIPS_SYS(sys_rt_sigaction, 4)
|
|
MIPS_SYS(sys_rt_sigprocmask, 4) /* 4195 */
|
|
MIPS_SYS(sys_rt_sigpending, 2)
|
|
MIPS_SYS(sys_rt_sigtimedwait, 4)
|
|
MIPS_SYS(sys_rt_sigqueueinfo, 3)
|
|
MIPS_SYS(sys_rt_sigsuspend, 0)
|
|
MIPS_SYS(sys_pread64 , 6) /* 4200 */
|
|
MIPS_SYS(sys_pwrite64 , 6)
|
|
MIPS_SYS(sys_chown , 3)
|
|
MIPS_SYS(sys_getcwd , 2)
|
|
MIPS_SYS(sys_capget , 2)
|
|
MIPS_SYS(sys_capset , 2) /* 4205 */
|
|
MIPS_SYS(sys_sigaltstack , 0)
|
|
MIPS_SYS(sys_sendfile , 4)
|
|
MIPS_SYS(sys_ni_syscall , 0)
|
|
MIPS_SYS(sys_ni_syscall , 0)
|
|
MIPS_SYS(sys_mmap2 , 6) /* 4210 */
|
|
MIPS_SYS(sys_truncate64 , 4)
|
|
MIPS_SYS(sys_ftruncate64 , 4)
|
|
MIPS_SYS(sys_stat64 , 2)
|
|
MIPS_SYS(sys_lstat64 , 2)
|
|
MIPS_SYS(sys_fstat64 , 2) /* 4215 */
|
|
MIPS_SYS(sys_pivot_root , 2)
|
|
MIPS_SYS(sys_mincore , 3)
|
|
MIPS_SYS(sys_madvise , 3)
|
|
MIPS_SYS(sys_getdents64 , 3)
|
|
MIPS_SYS(sys_fcntl64 , 3) /* 4220 */
|
|
MIPS_SYS(sys_ni_syscall , 0)
|
|
MIPS_SYS(sys_gettid , 0)
|
|
MIPS_SYS(sys_readahead , 5)
|
|
MIPS_SYS(sys_setxattr , 5)
|
|
MIPS_SYS(sys_lsetxattr , 5) /* 4225 */
|
|
MIPS_SYS(sys_fsetxattr , 5)
|
|
MIPS_SYS(sys_getxattr , 4)
|
|
MIPS_SYS(sys_lgetxattr , 4)
|
|
MIPS_SYS(sys_fgetxattr , 4)
|
|
MIPS_SYS(sys_listxattr , 3) /* 4230 */
|
|
MIPS_SYS(sys_llistxattr , 3)
|
|
MIPS_SYS(sys_flistxattr , 3)
|
|
MIPS_SYS(sys_removexattr , 2)
|
|
MIPS_SYS(sys_lremovexattr, 2)
|
|
MIPS_SYS(sys_fremovexattr, 2) /* 4235 */
|
|
MIPS_SYS(sys_tkill , 2)
|
|
MIPS_SYS(sys_sendfile64 , 5)
|
|
MIPS_SYS(sys_futex , 2)
|
|
MIPS_SYS(sys_sched_setaffinity, 3)
|
|
MIPS_SYS(sys_sched_getaffinity, 3) /* 4240 */
|
|
MIPS_SYS(sys_io_setup , 2)
|
|
MIPS_SYS(sys_io_destroy , 1)
|
|
MIPS_SYS(sys_io_getevents, 5)
|
|
MIPS_SYS(sys_io_submit , 3)
|
|
MIPS_SYS(sys_io_cancel , 3) /* 4245 */
|
|
MIPS_SYS(sys_exit_group , 1)
|
|
MIPS_SYS(sys_lookup_dcookie, 3)
|
|
MIPS_SYS(sys_epoll_create, 1)
|
|
MIPS_SYS(sys_epoll_ctl , 4)
|
|
MIPS_SYS(sys_epoll_wait , 3) /* 4250 */
|
|
MIPS_SYS(sys_remap_file_pages, 5)
|
|
MIPS_SYS(sys_set_tid_address, 1)
|
|
MIPS_SYS(sys_restart_syscall, 0)
|
|
MIPS_SYS(sys_fadvise64_64, 7)
|
|
MIPS_SYS(sys_statfs64 , 3) /* 4255 */
|
|
MIPS_SYS(sys_fstatfs64 , 2)
|
|
MIPS_SYS(sys_timer_create, 3)
|
|
MIPS_SYS(sys_timer_settime, 4)
|
|
MIPS_SYS(sys_timer_gettime, 2)
|
|
MIPS_SYS(sys_timer_getoverrun, 1) /* 4260 */
|
|
MIPS_SYS(sys_timer_delete, 1)
|
|
MIPS_SYS(sys_clock_settime, 2)
|
|
MIPS_SYS(sys_clock_gettime, 2)
|
|
MIPS_SYS(sys_clock_getres, 2)
|
|
MIPS_SYS(sys_clock_nanosleep, 4) /* 4265 */
|
|
MIPS_SYS(sys_tgkill , 3)
|
|
MIPS_SYS(sys_utimes , 2)
|
|
MIPS_SYS(sys_mbind , 4)
|
|
MIPS_SYS(sys_ni_syscall , 0) /* sys_get_mempolicy */
|
|
MIPS_SYS(sys_ni_syscall , 0) /* 4270 sys_set_mempolicy */
|
|
MIPS_SYS(sys_mq_open , 4)
|
|
MIPS_SYS(sys_mq_unlink , 1)
|
|
MIPS_SYS(sys_mq_timedsend, 5)
|
|
MIPS_SYS(sys_mq_timedreceive, 5)
|
|
MIPS_SYS(sys_mq_notify , 2) /* 4275 */
|
|
MIPS_SYS(sys_mq_getsetattr, 3)
|
|
MIPS_SYS(sys_ni_syscall , 0) /* sys_vserver */
|
|
MIPS_SYS(sys_waitid , 4)
|
|
MIPS_SYS(sys_ni_syscall , 0) /* available, was setaltroot */
|
|
MIPS_SYS(sys_add_key , 5)
|
|
MIPS_SYS(sys_request_key, 4)
|
|
MIPS_SYS(sys_keyctl , 5)
|
|
MIPS_SYS(sys_set_thread_area, 1)
|
|
MIPS_SYS(sys_inotify_init, 0)
|
|
MIPS_SYS(sys_inotify_add_watch, 3) /* 4285 */
|
|
MIPS_SYS(sys_inotify_rm_watch, 2)
|
|
MIPS_SYS(sys_migrate_pages, 4)
|
|
MIPS_SYS(sys_openat, 4)
|
|
MIPS_SYS(sys_mkdirat, 3)
|
|
MIPS_SYS(sys_mknodat, 4) /* 4290 */
|
|
MIPS_SYS(sys_fchownat, 5)
|
|
MIPS_SYS(sys_futimesat, 3)
|
|
MIPS_SYS(sys_fstatat64, 4)
|
|
MIPS_SYS(sys_unlinkat, 3)
|
|
MIPS_SYS(sys_renameat, 4) /* 4295 */
|
|
MIPS_SYS(sys_linkat, 5)
|
|
MIPS_SYS(sys_symlinkat, 3)
|
|
MIPS_SYS(sys_readlinkat, 4)
|
|
MIPS_SYS(sys_fchmodat, 3)
|
|
MIPS_SYS(sys_faccessat, 3) /* 4300 */
|
|
MIPS_SYS(sys_pselect6, 6)
|
|
MIPS_SYS(sys_ppoll, 5)
|
|
MIPS_SYS(sys_unshare, 1)
|
|
MIPS_SYS(sys_splice, 4)
|
|
MIPS_SYS(sys_sync_file_range, 7) /* 4305 */
|
|
MIPS_SYS(sys_tee, 4)
|
|
MIPS_SYS(sys_vmsplice, 4)
|
|
MIPS_SYS(sys_move_pages, 6)
|
|
MIPS_SYS(sys_set_robust_list, 2)
|
|
MIPS_SYS(sys_get_robust_list, 3) /* 4310 */
|
|
MIPS_SYS(sys_kexec_load, 4)
|
|
MIPS_SYS(sys_getcpu, 3)
|
|
MIPS_SYS(sys_epoll_pwait, 6)
|
|
MIPS_SYS(sys_ioprio_set, 3)
|
|
MIPS_SYS(sys_ioprio_get, 2)
|
|
};
|
|
|
|
#undef MIPS_SYS
|
|
|
|
void cpu_loop(CPUMIPSState *env)
|
|
{
|
|
target_siginfo_t info;
|
|
int trapnr, ret;
|
|
unsigned int syscall_num;
|
|
|
|
for(;;) {
|
|
trapnr = cpu_mips_exec(env);
|
|
switch(trapnr) {
|
|
case EXCP_SYSCALL:
|
|
syscall_num = env->gpr[2][env->current_tc] - 4000;
|
|
env->PC[env->current_tc] += 4;
|
|
if (syscall_num >= sizeof(mips_syscall_args)) {
|
|
ret = -ENOSYS;
|
|
} else {
|
|
int nb_args;
|
|
abi_ulong sp_reg;
|
|
abi_ulong arg5 = 0, arg6 = 0, arg7 = 0, arg8 = 0;
|
|
|
|
nb_args = mips_syscall_args[syscall_num];
|
|
sp_reg = env->gpr[29][env->current_tc];
|
|
switch (nb_args) {
|
|
/* these arguments are taken from the stack */
|
|
/* FIXME - what to do if get_user() fails? */
|
|
case 8: get_user_ual(arg8, sp_reg + 28);
|
|
case 7: get_user_ual(arg7, sp_reg + 24);
|
|
case 6: get_user_ual(arg6, sp_reg + 20);
|
|
case 5: get_user_ual(arg5, sp_reg + 16);
|
|
default:
|
|
break;
|
|
}
|
|
ret = do_syscall(env, env->gpr[2][env->current_tc],
|
|
env->gpr[4][env->current_tc],
|
|
env->gpr[5][env->current_tc],
|
|
env->gpr[6][env->current_tc],
|
|
env->gpr[7][env->current_tc],
|
|
arg5, arg6/*, arg7, arg8*/);
|
|
}
|
|
if ((unsigned int)ret >= (unsigned int)(-1133)) {
|
|
env->gpr[7][env->current_tc] = 1; /* error flag */
|
|
ret = -ret;
|
|
} else {
|
|
env->gpr[7][env->current_tc] = 0; /* error flag */
|
|
}
|
|
env->gpr[2][env->current_tc] = ret;
|
|
break;
|
|
case EXCP_TLBL:
|
|
case EXCP_TLBS:
|
|
case EXCP_CpU:
|
|
case EXCP_RI:
|
|
info.si_signo = TARGET_SIGILL;
|
|
info.si_errno = 0;
|
|
info.si_code = 0;
|
|
queue_signal(info.si_signo, &info);
|
|
break;
|
|
case EXCP_INTERRUPT:
|
|
/* just indicate that signals should be handled asap */
|
|
break;
|
|
case EXCP_DEBUG:
|
|
{
|
|
int sig;
|
|
|
|
sig = gdb_handlesig (env, TARGET_SIGTRAP);
|
|
if (sig)
|
|
{
|
|
info.si_signo = sig;
|
|
info.si_errno = 0;
|
|
info.si_code = TARGET_TRAP_BRKPT;
|
|
queue_signal(info.si_signo, &info);
|
|
}
|
|
}
|
|
break;
|
|
default:
|
|
// error:
|
|
fprintf(stderr, "qemu: unhandled CPU exception 0x%x - aborting\n",
|
|
trapnr);
|
|
cpu_dump_state(env, stderr, fprintf, 0);
|
|
abort();
|
|
}
|
|
process_pending_signals(env);
|
|
}
|
|
}
|
|
#endif
|
|
|
|
#ifdef TARGET_SH4
|
|
void cpu_loop (CPUState *env)
|
|
{
|
|
int trapnr, ret;
|
|
target_siginfo_t info;
|
|
|
|
while (1) {
|
|
trapnr = cpu_sh4_exec (env);
|
|
|
|
switch (trapnr) {
|
|
case 0x160:
|
|
ret = do_syscall(env,
|
|
env->gregs[3],
|
|
env->gregs[4],
|
|
env->gregs[5],
|
|
env->gregs[6],
|
|
env->gregs[7],
|
|
env->gregs[0],
|
|
0);
|
|
env->gregs[0] = ret;
|
|
env->pc += 2;
|
|
break;
|
|
case EXCP_DEBUG:
|
|
{
|
|
int sig;
|
|
|
|
sig = gdb_handlesig (env, TARGET_SIGTRAP);
|
|
if (sig)
|
|
{
|
|
info.si_signo = sig;
|
|
info.si_errno = 0;
|
|
info.si_code = TARGET_TRAP_BRKPT;
|
|
queue_signal(info.si_signo, &info);
|
|
}
|
|
}
|
|
break;
|
|
default:
|
|
printf ("Unhandled trap: 0x%x\n", trapnr);
|
|
cpu_dump_state(env, stderr, fprintf, 0);
|
|
exit (1);
|
|
}
|
|
process_pending_signals (env);
|
|
}
|
|
}
|
|
#endif
|
|
|
|
#ifdef TARGET_CRIS
|
|
void cpu_loop (CPUState *env)
|
|
{
|
|
int trapnr, ret;
|
|
target_siginfo_t info;
|
|
|
|
while (1) {
|
|
trapnr = cpu_cris_exec (env);
|
|
switch (trapnr) {
|
|
case 0xaa:
|
|
{
|
|
info.si_signo = SIGSEGV;
|
|
info.si_errno = 0;
|
|
/* XXX: check env->error_code */
|
|
info.si_code = TARGET_SEGV_MAPERR;
|
|
info._sifields._sigfault._addr = env->debug1;
|
|
queue_signal(info.si_signo, &info);
|
|
}
|
|
break;
|
|
case EXCP_BREAK:
|
|
ret = do_syscall(env,
|
|
env->regs[9],
|
|
env->regs[10],
|
|
env->regs[11],
|
|
env->regs[12],
|
|
env->regs[13],
|
|
env->pregs[7],
|
|
env->pregs[11]);
|
|
env->regs[10] = ret;
|
|
env->pc += 2;
|
|
break;
|
|
case EXCP_DEBUG:
|
|
{
|
|
int sig;
|
|
|
|
sig = gdb_handlesig (env, TARGET_SIGTRAP);
|
|
if (sig)
|
|
{
|
|
info.si_signo = sig;
|
|
info.si_errno = 0;
|
|
info.si_code = TARGET_TRAP_BRKPT;
|
|
queue_signal(info.si_signo, &info);
|
|
}
|
|
}
|
|
break;
|
|
default:
|
|
printf ("Unhandled trap: 0x%x\n", trapnr);
|
|
cpu_dump_state(env, stderr, fprintf, 0);
|
|
exit (1);
|
|
}
|
|
process_pending_signals (env);
|
|
}
|
|
}
|
|
#endif
|
|
|
|
#ifdef TARGET_M68K
|
|
|
|
void cpu_loop(CPUM68KState *env)
|
|
{
|
|
int trapnr;
|
|
unsigned int n;
|
|
target_siginfo_t info;
|
|
TaskState *ts = env->opaque;
|
|
|
|
for(;;) {
|
|
trapnr = cpu_m68k_exec(env);
|
|
switch(trapnr) {
|
|
case EXCP_ILLEGAL:
|
|
{
|
|
if (ts->sim_syscalls) {
|
|
uint16_t nr;
|
|
nr = lduw(env->pc + 2);
|
|
env->pc += 4;
|
|
do_m68k_simcall(env, nr);
|
|
} else {
|
|
goto do_sigill;
|
|
}
|
|
}
|
|
break;
|
|
case EXCP_HALT_INSN:
|
|
/* Semihosing syscall. */
|
|
env->pc += 4;
|
|
do_m68k_semihosting(env, env->dregs[0]);
|
|
break;
|
|
case EXCP_LINEA:
|
|
case EXCP_LINEF:
|
|
case EXCP_UNSUPPORTED:
|
|
do_sigill:
|
|
info.si_signo = SIGILL;
|
|
info.si_errno = 0;
|
|
info.si_code = TARGET_ILL_ILLOPN;
|
|
info._sifields._sigfault._addr = env->pc;
|
|
queue_signal(info.si_signo, &info);
|
|
break;
|
|
case EXCP_TRAP0:
|
|
{
|
|
ts->sim_syscalls = 0;
|
|
n = env->dregs[0];
|
|
env->pc += 2;
|
|
env->dregs[0] = do_syscall(env,
|
|
n,
|
|
env->dregs[1],
|
|
env->dregs[2],
|
|
env->dregs[3],
|
|
env->dregs[4],
|
|
env->dregs[5],
|
|
env->dregs[6]);
|
|
}
|
|
break;
|
|
case EXCP_INTERRUPT:
|
|
/* just indicate that signals should be handled asap */
|
|
break;
|
|
case EXCP_ACCESS:
|
|
{
|
|
info.si_signo = SIGSEGV;
|
|
info.si_errno = 0;
|
|
/* XXX: check env->error_code */
|
|
info.si_code = TARGET_SEGV_MAPERR;
|
|
info._sifields._sigfault._addr = env->mmu.ar;
|
|
queue_signal(info.si_signo, &info);
|
|
}
|
|
break;
|
|
case EXCP_DEBUG:
|
|
{
|
|
int sig;
|
|
|
|
sig = gdb_handlesig (env, TARGET_SIGTRAP);
|
|
if (sig)
|
|
{
|
|
info.si_signo = sig;
|
|
info.si_errno = 0;
|
|
info.si_code = TARGET_TRAP_BRKPT;
|
|
queue_signal(info.si_signo, &info);
|
|
}
|
|
}
|
|
break;
|
|
default:
|
|
fprintf(stderr, "qemu: unhandled CPU exception 0x%x - aborting\n",
|
|
trapnr);
|
|
cpu_dump_state(env, stderr, fprintf, 0);
|
|
abort();
|
|
}
|
|
process_pending_signals(env);
|
|
}
|
|
}
|
|
#endif /* TARGET_M68K */
|
|
|
|
#ifdef TARGET_ALPHA
|
|
void cpu_loop (CPUState *env)
|
|
{
|
|
int trapnr;
|
|
target_siginfo_t info;
|
|
|
|
while (1) {
|
|
trapnr = cpu_alpha_exec (env);
|
|
|
|
switch (trapnr) {
|
|
case EXCP_RESET:
|
|
fprintf(stderr, "Reset requested. Exit\n");
|
|
exit(1);
|
|
break;
|
|
case EXCP_MCHK:
|
|
fprintf(stderr, "Machine check exception. Exit\n");
|
|
exit(1);
|
|
break;
|
|
case EXCP_ARITH:
|
|
fprintf(stderr, "Arithmetic trap.\n");
|
|
exit(1);
|
|
break;
|
|
case EXCP_HW_INTERRUPT:
|
|
fprintf(stderr, "External interrupt. Exit\n");
|
|
exit(1);
|
|
break;
|
|
case EXCP_DFAULT:
|
|
fprintf(stderr, "MMU data fault\n");
|
|
exit(1);
|
|
break;
|
|
case EXCP_DTB_MISS_PAL:
|
|
fprintf(stderr, "MMU data TLB miss in PALcode\n");
|
|
exit(1);
|
|
break;
|
|
case EXCP_ITB_MISS:
|
|
fprintf(stderr, "MMU instruction TLB miss\n");
|
|
exit(1);
|
|
break;
|
|
case EXCP_ITB_ACV:
|
|
fprintf(stderr, "MMU instruction access violation\n");
|
|
exit(1);
|
|
break;
|
|
case EXCP_DTB_MISS_NATIVE:
|
|
fprintf(stderr, "MMU data TLB miss\n");
|
|
exit(1);
|
|
break;
|
|
case EXCP_UNALIGN:
|
|
fprintf(stderr, "Unaligned access\n");
|
|
exit(1);
|
|
break;
|
|
case EXCP_OPCDEC:
|
|
fprintf(stderr, "Invalid instruction\n");
|
|
exit(1);
|
|
break;
|
|
case EXCP_FEN:
|
|
fprintf(stderr, "Floating-point not allowed\n");
|
|
exit(1);
|
|
break;
|
|
case EXCP_CALL_PAL ... (EXCP_CALL_PALP - 1):
|
|
fprintf(stderr, "Call to PALcode\n");
|
|
call_pal(env, (trapnr >> 6) | 0x80);
|
|
break;
|
|
case EXCP_CALL_PALP ... (EXCP_CALL_PALE - 1):
|
|
fprintf(stderr, "Privileged call to PALcode\n");
|
|
exit(1);
|
|
break;
|
|
case EXCP_DEBUG:
|
|
{
|
|
int sig;
|
|
|
|
sig = gdb_handlesig (env, TARGET_SIGTRAP);
|
|
if (sig)
|
|
{
|
|
info.si_signo = sig;
|
|
info.si_errno = 0;
|
|
info.si_code = TARGET_TRAP_BRKPT;
|
|
queue_signal(info.si_signo, &info);
|
|
}
|
|
}
|
|
break;
|
|
default:
|
|
printf ("Unhandled trap: 0x%x\n", trapnr);
|
|
cpu_dump_state(env, stderr, fprintf, 0);
|
|
exit (1);
|
|
}
|
|
process_pending_signals (env);
|
|
}
|
|
}
|
|
#endif /* TARGET_ALPHA */
|
|
|
|
void usage(void)
|
|
{
|
|
printf("qemu-" TARGET_ARCH " version " QEMU_VERSION ", Copyright (c) 2003-2007 Fabrice Bellard\n"
|
|
"usage: qemu-" TARGET_ARCH " [-h] [-g] [-d opts] [-L path] [-s size] [-cpu model] program [arguments...]\n"
|
|
"Linux CPU emulator (compiled for %s emulation)\n"
|
|
"\n"
|
|
"-h print this help\n"
|
|
"-g port wait gdb connection to port\n"
|
|
"-L path set the elf interpreter prefix (default=%s)\n"
|
|
"-s size set the stack size in bytes (default=%ld)\n"
|
|
"-cpu model select CPU (-cpu ? for list)\n"
|
|
"-drop-ld-preload drop LD_PRELOAD for target process\n"
|
|
"\n"
|
|
"debug options:\n"
|
|
"-d options activate log (logfile=%s)\n"
|
|
"-p pagesize set the host page size to 'pagesize'\n"
|
|
"-strace log system calls\n",
|
|
TARGET_ARCH,
|
|
interp_prefix,
|
|
x86_stack_size,
|
|
DEBUG_LOGFILE);
|
|
_exit(1);
|
|
}
|
|
|
|
/* XXX: currently only used for async signals (see signal.c) */
|
|
CPUState *global_env;
|
|
|
|
/* used to free thread contexts */
|
|
TaskState *first_task_state;
|
|
|
|
int main(int argc, char **argv)
|
|
{
|
|
const char *filename;
|
|
const char *cpu_model;
|
|
struct target_pt_regs regs1, *regs = ®s1;
|
|
struct image_info info1, *info = &info1;
|
|
TaskState ts1, *ts = &ts1;
|
|
CPUState *env;
|
|
int optind;
|
|
const char *r;
|
|
int gdbstub_port = 0;
|
|
int drop_ld_preload = 0, environ_count = 0;
|
|
char **target_environ, **wrk, **dst;
|
|
|
|
if (argc <= 1)
|
|
usage();
|
|
|
|
/* init debug */
|
|
cpu_set_log_filename(DEBUG_LOGFILE);
|
|
|
|
cpu_model = NULL;
|
|
optind = 1;
|
|
for(;;) {
|
|
if (optind >= argc)
|
|
break;
|
|
r = argv[optind];
|
|
if (r[0] != '-')
|
|
break;
|
|
optind++;
|
|
r++;
|
|
if (!strcmp(r, "-")) {
|
|
break;
|
|
} else if (!strcmp(r, "d")) {
|
|
int mask;
|
|
CPULogItem *item;
|
|
|
|
if (optind >= argc)
|
|
break;
|
|
|
|
r = argv[optind++];
|
|
mask = cpu_str_to_log_mask(r);
|
|
if (!mask) {
|
|
printf("Log items (comma separated):\n");
|
|
for(item = cpu_log_items; item->mask != 0; item++) {
|
|
printf("%-10s %s\n", item->name, item->help);
|
|
}
|
|
exit(1);
|
|
}
|
|
cpu_set_log(mask);
|
|
} else if (!strcmp(r, "s")) {
|
|
r = argv[optind++];
|
|
x86_stack_size = strtol(r, (char **)&r, 0);
|
|
if (x86_stack_size <= 0)
|
|
usage();
|
|
if (*r == 'M')
|
|
x86_stack_size *= 1024 * 1024;
|
|
else if (*r == 'k' || *r == 'K')
|
|
x86_stack_size *= 1024;
|
|
} else if (!strcmp(r, "L")) {
|
|
interp_prefix = argv[optind++];
|
|
} else if (!strcmp(r, "p")) {
|
|
qemu_host_page_size = atoi(argv[optind++]);
|
|
if (qemu_host_page_size == 0 ||
|
|
(qemu_host_page_size & (qemu_host_page_size - 1)) != 0) {
|
|
fprintf(stderr, "page size must be a power of two\n");
|
|
exit(1);
|
|
}
|
|
} else if (!strcmp(r, "g")) {
|
|
gdbstub_port = atoi(argv[optind++]);
|
|
} else if (!strcmp(r, "r")) {
|
|
qemu_uname_release = argv[optind++];
|
|
} else if (!strcmp(r, "cpu")) {
|
|
cpu_model = argv[optind++];
|
|
if (strcmp(cpu_model, "?") == 0) {
|
|
/* XXX: implement xxx_cpu_list for targets that still miss it */
|
|
#if defined(cpu_list)
|
|
cpu_list(stdout, &fprintf);
|
|
#endif
|
|
_exit(1);
|
|
}
|
|
} else if (!strcmp(r, "drop-ld-preload")) {
|
|
drop_ld_preload = 1;
|
|
} else if (!strcmp(r, "strace")) {
|
|
do_strace = 1;
|
|
} else
|
|
{
|
|
usage();
|
|
}
|
|
}
|
|
if (optind >= argc)
|
|
usage();
|
|
filename = argv[optind];
|
|
|
|
/* Zero out regs */
|
|
memset(regs, 0, sizeof(struct target_pt_regs));
|
|
|
|
/* Zero out image_info */
|
|
memset(info, 0, sizeof(struct image_info));
|
|
|
|
/* Scan interp_prefix dir for replacement files. */
|
|
init_paths(interp_prefix);
|
|
|
|
if (cpu_model == NULL) {
|
|
#if defined(TARGET_I386)
|
|
#ifdef TARGET_X86_64
|
|
cpu_model = "qemu64";
|
|
#else
|
|
cpu_model = "qemu32";
|
|
#endif
|
|
#elif defined(TARGET_ARM)
|
|
cpu_model = "arm926";
|
|
#elif defined(TARGET_M68K)
|
|
cpu_model = "any";
|
|
#elif defined(TARGET_SPARC)
|
|
#ifdef TARGET_SPARC64
|
|
cpu_model = "TI UltraSparc II";
|
|
#else
|
|
cpu_model = "Fujitsu MB86904";
|
|
#endif
|
|
#elif defined(TARGET_MIPS)
|
|
#if defined(TARGET_ABI_MIPSN32) || defined(TARGET_ABI_MIPSN64)
|
|
cpu_model = "20Kc";
|
|
#else
|
|
cpu_model = "24Kf";
|
|
#endif
|
|
#elif defined(TARGET_PPC)
|
|
#ifdef TARGET_PPC64
|
|
cpu_model = "970";
|
|
#else
|
|
cpu_model = "750";
|
|
#endif
|
|
#else
|
|
cpu_model = "any";
|
|
#endif
|
|
}
|
|
/* NOTE: we need to init the CPU at this stage to get
|
|
qemu_host_page_size */
|
|
env = cpu_init(cpu_model);
|
|
if (!env) {
|
|
fprintf(stderr, "Unable to find CPU definition\n");
|
|
exit(1);
|
|
}
|
|
global_env = env;
|
|
|
|
if (getenv("QEMU_STRACE")) {
|
|
do_strace = 1;
|
|
}
|
|
|
|
wrk = environ;
|
|
while (*(wrk++))
|
|
environ_count++;
|
|
|
|
target_environ = malloc((environ_count + 1) * sizeof(char *));
|
|
if (!target_environ)
|
|
abort();
|
|
for (wrk = environ, dst = target_environ; *wrk; wrk++) {
|
|
if (drop_ld_preload && !strncmp(*wrk, "LD_PRELOAD=", 11))
|
|
continue;
|
|
*(dst++) = strdup(*wrk);
|
|
}
|
|
*dst = NULL; /* NULL terminate target_environ */
|
|
|
|
if (loader_exec(filename, argv+optind, target_environ, regs, info) != 0) {
|
|
printf("Error loading %s\n", filename);
|
|
_exit(1);
|
|
}
|
|
|
|
for (wrk = target_environ; *wrk; wrk++) {
|
|
free(*wrk);
|
|
}
|
|
|
|
free(target_environ);
|
|
|
|
if (loglevel) {
|
|
page_dump(logfile);
|
|
|
|
fprintf(logfile, "start_brk 0x" TARGET_ABI_FMT_lx "\n", info->start_brk);
|
|
fprintf(logfile, "end_code 0x" TARGET_ABI_FMT_lx "\n", info->end_code);
|
|
fprintf(logfile, "start_code 0x" TARGET_ABI_FMT_lx "\n",
|
|
info->start_code);
|
|
fprintf(logfile, "start_data 0x" TARGET_ABI_FMT_lx "\n",
|
|
info->start_data);
|
|
fprintf(logfile, "end_data 0x" TARGET_ABI_FMT_lx "\n", info->end_data);
|
|
fprintf(logfile, "start_stack 0x" TARGET_ABI_FMT_lx "\n",
|
|
info->start_stack);
|
|
fprintf(logfile, "brk 0x" TARGET_ABI_FMT_lx "\n", info->brk);
|
|
fprintf(logfile, "entry 0x" TARGET_ABI_FMT_lx "\n", info->entry);
|
|
}
|
|
|
|
target_set_brk(info->brk);
|
|
syscall_init();
|
|
signal_init();
|
|
|
|
/* build Task State */
|
|
memset(ts, 0, sizeof(TaskState));
|
|
env->opaque = ts;
|
|
ts->used = 1;
|
|
ts->info = info;
|
|
env->user_mode_only = 1;
|
|
|
|
#if defined(TARGET_I386)
|
|
cpu_x86_set_cpl(env, 3);
|
|
|
|
env->cr[0] = CR0_PG_MASK | CR0_WP_MASK | CR0_PE_MASK;
|
|
env->hflags |= HF_PE_MASK;
|
|
if (env->cpuid_features & CPUID_SSE) {
|
|
env->cr[4] |= CR4_OSFXSR_MASK;
|
|
env->hflags |= HF_OSFXSR_MASK;
|
|
}
|
|
#ifndef TARGET_ABI32
|
|
/* enable 64 bit mode if possible */
|
|
if (!(env->cpuid_ext2_features & CPUID_EXT2_LM)) {
|
|
fprintf(stderr, "The selected x86 CPU does not support 64 bit mode\n");
|
|
exit(1);
|
|
}
|
|
env->cr[4] |= CR4_PAE_MASK;
|
|
env->efer |= MSR_EFER_LMA | MSR_EFER_LME;
|
|
env->hflags |= HF_LMA_MASK;
|
|
#endif
|
|
|
|
/* flags setup : we activate the IRQs by default as in user mode */
|
|
env->eflags |= IF_MASK;
|
|
|
|
/* linux register setup */
|
|
#ifndef TARGET_ABI32
|
|
env->regs[R_EAX] = regs->rax;
|
|
env->regs[R_EBX] = regs->rbx;
|
|
env->regs[R_ECX] = regs->rcx;
|
|
env->regs[R_EDX] = regs->rdx;
|
|
env->regs[R_ESI] = regs->rsi;
|
|
env->regs[R_EDI] = regs->rdi;
|
|
env->regs[R_EBP] = regs->rbp;
|
|
env->regs[R_ESP] = regs->rsp;
|
|
env->eip = regs->rip;
|
|
#else
|
|
env->regs[R_EAX] = regs->eax;
|
|
env->regs[R_EBX] = regs->ebx;
|
|
env->regs[R_ECX] = regs->ecx;
|
|
env->regs[R_EDX] = regs->edx;
|
|
env->regs[R_ESI] = regs->esi;
|
|
env->regs[R_EDI] = regs->edi;
|
|
env->regs[R_EBP] = regs->ebp;
|
|
env->regs[R_ESP] = regs->esp;
|
|
env->eip = regs->eip;
|
|
#endif
|
|
|
|
/* linux interrupt setup */
|
|
env->idt.base = h2g(idt_table);
|
|
env->idt.limit = sizeof(idt_table) - 1;
|
|
set_idt(0, 0);
|
|
set_idt(1, 0);
|
|
set_idt(2, 0);
|
|
set_idt(3, 3);
|
|
set_idt(4, 3);
|
|
set_idt(5, 3);
|
|
set_idt(6, 0);
|
|
set_idt(7, 0);
|
|
set_idt(8, 0);
|
|
set_idt(9, 0);
|
|
set_idt(10, 0);
|
|
set_idt(11, 0);
|
|
set_idt(12, 0);
|
|
set_idt(13, 0);
|
|
set_idt(14, 0);
|
|
set_idt(15, 0);
|
|
set_idt(16, 0);
|
|
set_idt(17, 0);
|
|
set_idt(18, 0);
|
|
set_idt(19, 0);
|
|
set_idt(0x80, 3);
|
|
|
|
/* linux segment setup */
|
|
{
|
|
uint64_t *gdt_table;
|
|
gdt_table = qemu_mallocz(sizeof(uint64_t) * TARGET_GDT_ENTRIES);
|
|
env->gdt.base = h2g((unsigned long)gdt_table);
|
|
env->gdt.limit = sizeof(uint64_t) * TARGET_GDT_ENTRIES - 1;
|
|
#ifdef TARGET_ABI32
|
|
write_dt(&gdt_table[__USER_CS >> 3], 0, 0xfffff,
|
|
DESC_G_MASK | DESC_B_MASK | DESC_P_MASK | DESC_S_MASK |
|
|
(3 << DESC_DPL_SHIFT) | (0xa << DESC_TYPE_SHIFT));
|
|
#else
|
|
/* 64 bit code segment */
|
|
write_dt(&gdt_table[__USER_CS >> 3], 0, 0xfffff,
|
|
DESC_G_MASK | DESC_B_MASK | DESC_P_MASK | DESC_S_MASK |
|
|
DESC_L_MASK |
|
|
(3 << DESC_DPL_SHIFT) | (0xa << DESC_TYPE_SHIFT));
|
|
#endif
|
|
write_dt(&gdt_table[__USER_DS >> 3], 0, 0xfffff,
|
|
DESC_G_MASK | DESC_B_MASK | DESC_P_MASK | DESC_S_MASK |
|
|
(3 << DESC_DPL_SHIFT) | (0x2 << DESC_TYPE_SHIFT));
|
|
}
|
|
cpu_x86_load_seg(env, R_CS, __USER_CS);
|
|
cpu_x86_load_seg(env, R_SS, __USER_DS);
|
|
#ifdef TARGET_ABI32
|
|
cpu_x86_load_seg(env, R_DS, __USER_DS);
|
|
cpu_x86_load_seg(env, R_ES, __USER_DS);
|
|
cpu_x86_load_seg(env, R_FS, __USER_DS);
|
|
cpu_x86_load_seg(env, R_GS, __USER_DS);
|
|
/* This hack makes Wine work... */
|
|
env->segs[R_FS].selector = 0;
|
|
#else
|
|
cpu_x86_load_seg(env, R_DS, 0);
|
|
cpu_x86_load_seg(env, R_ES, 0);
|
|
cpu_x86_load_seg(env, R_FS, 0);
|
|
cpu_x86_load_seg(env, R_GS, 0);
|
|
#endif
|
|
#elif defined(TARGET_ARM)
|
|
{
|
|
int i;
|
|
cpsr_write(env, regs->uregs[16], 0xffffffff);
|
|
for(i = 0; i < 16; i++) {
|
|
env->regs[i] = regs->uregs[i];
|
|
}
|
|
}
|
|
#elif defined(TARGET_SPARC)
|
|
{
|
|
int i;
|
|
env->pc = regs->pc;
|
|
env->npc = regs->npc;
|
|
env->y = regs->y;
|
|
for(i = 0; i < 8; i++)
|
|
env->gregs[i] = regs->u_regs[i];
|
|
for(i = 0; i < 8; i++)
|
|
env->regwptr[i] = regs->u_regs[i + 8];
|
|
}
|
|
#elif defined(TARGET_PPC)
|
|
{
|
|
int i;
|
|
|
|
#if defined(TARGET_PPC64)
|
|
#if defined(TARGET_ABI32)
|
|
env->msr &= ~((target_ulong)1 << MSR_SF);
|
|
#else
|
|
env->msr |= (target_ulong)1 << MSR_SF;
|
|
#endif
|
|
#endif
|
|
env->nip = regs->nip;
|
|
for(i = 0; i < 32; i++) {
|
|
env->gpr[i] = regs->gpr[i];
|
|
}
|
|
}
|
|
#elif defined(TARGET_M68K)
|
|
{
|
|
env->pc = regs->pc;
|
|
env->dregs[0] = regs->d0;
|
|
env->dregs[1] = regs->d1;
|
|
env->dregs[2] = regs->d2;
|
|
env->dregs[3] = regs->d3;
|
|
env->dregs[4] = regs->d4;
|
|
env->dregs[5] = regs->d5;
|
|
env->dregs[6] = regs->d6;
|
|
env->dregs[7] = regs->d7;
|
|
env->aregs[0] = regs->a0;
|
|
env->aregs[1] = regs->a1;
|
|
env->aregs[2] = regs->a2;
|
|
env->aregs[3] = regs->a3;
|
|
env->aregs[4] = regs->a4;
|
|
env->aregs[5] = regs->a5;
|
|
env->aregs[6] = regs->a6;
|
|
env->aregs[7] = regs->usp;
|
|
env->sr = regs->sr;
|
|
ts->sim_syscalls = 1;
|
|
}
|
|
#elif defined(TARGET_MIPS)
|
|
{
|
|
int i;
|
|
|
|
for(i = 0; i < 32; i++) {
|
|
env->gpr[i][env->current_tc] = regs->regs[i];
|
|
}
|
|
env->PC[env->current_tc] = regs->cp0_epc;
|
|
}
|
|
#elif defined(TARGET_SH4)
|
|
{
|
|
int i;
|
|
|
|
for(i = 0; i < 16; i++) {
|
|
env->gregs[i] = regs->regs[i];
|
|
}
|
|
env->pc = regs->pc;
|
|
}
|
|
#elif defined(TARGET_ALPHA)
|
|
{
|
|
int i;
|
|
|
|
for(i = 0; i < 28; i++) {
|
|
env->ir[i] = ((abi_ulong *)regs)[i];
|
|
}
|
|
env->ipr[IPR_USP] = regs->usp;
|
|
env->ir[30] = regs->usp;
|
|
env->pc = regs->pc;
|
|
env->unique = regs->unique;
|
|
}
|
|
#elif defined(TARGET_CRIS)
|
|
{
|
|
env->regs[0] = regs->r0;
|
|
env->regs[1] = regs->r1;
|
|
env->regs[2] = regs->r2;
|
|
env->regs[3] = regs->r3;
|
|
env->regs[4] = regs->r4;
|
|
env->regs[5] = regs->r5;
|
|
env->regs[6] = regs->r6;
|
|
env->regs[7] = regs->r7;
|
|
env->regs[8] = regs->r8;
|
|
env->regs[9] = regs->r9;
|
|
env->regs[10] = regs->r10;
|
|
env->regs[11] = regs->r11;
|
|
env->regs[12] = regs->r12;
|
|
env->regs[13] = regs->r13;
|
|
env->regs[14] = info->start_stack;
|
|
env->regs[15] = regs->acr;
|
|
env->pc = regs->erp;
|
|
}
|
|
#else
|
|
#error unsupported target CPU
|
|
#endif
|
|
|
|
#if defined(TARGET_ARM) || defined(TARGET_M68K)
|
|
ts->stack_base = info->start_stack;
|
|
ts->heap_base = info->brk;
|
|
/* This will be filled in on the first SYS_HEAPINFO call. */
|
|
ts->heap_limit = 0;
|
|
#endif
|
|
|
|
if (gdbstub_port) {
|
|
gdbserver_start (gdbstub_port);
|
|
gdb_handlesig(env, 0);
|
|
}
|
|
cpu_loop(env);
|
|
/* never exits */
|
|
return 0;
|
|
}
|