diff options
Diffstat (limited to 'linux-user/main.c')
| -rw-r--r-- | linux-user/main.c | 133 |
1 files changed, 0 insertions, 133 deletions
diff --git a/linux-user/main.c b/linux-user/main.c index a760c19379..88f807549f 100644 --- a/linux-user/main.c +++ b/linux-user/main.c @@ -149,109 +149,6 @@ void fork_end(int child) } } -#ifdef TARGET_NIOS2 - -void cpu_loop(CPUNios2State *env) -{ - CPUState *cs = ENV_GET_CPU(env); - Nios2CPU *cpu = NIOS2_CPU(cs); - target_siginfo_t info; - int trapnr, gdbsig, ret; - - for (;;) { - cpu_exec_start(cs); - trapnr = cpu_exec(cs); - cpu_exec_end(cs); - gdbsig = 0; - - switch (trapnr) { - case EXCP_INTERRUPT: - /* just indicate that signals should be handled asap */ - break; - case EXCP_TRAP: - if (env->regs[R_AT] == 0) { - abi_long ret; - qemu_log_mask(CPU_LOG_INT, "\nSyscall\n"); - - ret = do_syscall(env, env->regs[2], - env->regs[4], env->regs[5], env->regs[6], - env->regs[7], env->regs[8], env->regs[9], - 0, 0); - - if (env->regs[2] == 0) { /* FIXME: syscall 0 workaround */ - ret = 0; - } - - env->regs[2] = abs(ret); - /* Return value is 0..4096 */ - env->regs[7] = (ret > 0xfffffffffffff000ULL); - env->regs[CR_ESTATUS] = env->regs[CR_STATUS]; - env->regs[CR_STATUS] &= ~0x3; - env->regs[R_EA] = env->regs[R_PC] + 4; - env->regs[R_PC] += 4; - break; - } else { - qemu_log_mask(CPU_LOG_INT, "\nTrap\n"); - - env->regs[CR_ESTATUS] = env->regs[CR_STATUS]; - env->regs[CR_STATUS] &= ~0x3; - env->regs[R_EA] = env->regs[R_PC] + 4; - env->regs[R_PC] = cpu->exception_addr; - - gdbsig = TARGET_SIGTRAP; - break; - } - case 0xaa: - switch (env->regs[R_PC]) { - /*case 0x1000:*/ /* TODO:__kuser_helper_version */ - case 0x1004: /* __kuser_cmpxchg */ - start_exclusive(); - if (env->regs[4] & 0x3) { - goto kuser_fail; - } - ret = get_user_u32(env->regs[2], env->regs[4]); - if (ret) { - end_exclusive(); - goto kuser_fail; - } - env->regs[2] -= env->regs[5]; - if (env->regs[2] == 0) { - put_user_u32(env->regs[6], env->regs[4]); - } - end_exclusive(); - env->regs[R_PC] = env->regs[R_RA]; - break; - /*case 0x1040:*/ /* TODO:__kuser_sigtramp */ - default: - ; -kuser_fail: - info.si_signo = TARGET_SIGSEGV; - info.si_errno = 0; - /* TODO: check env->error_code */ - info.si_code = TARGET_SEGV_MAPERR; - info._sifields._sigfault._addr = env->regs[R_PC]; - queue_signal(env, info.si_signo, QEMU_SI_FAULT, &info); - } - break; - default: - EXCP_DUMP(env, "\nqemu: unhandled CPU exception %#x - aborting\n", - trapnr); - gdbsig = TARGET_SIGILL; - break; - } - if (gdbsig) { - gdb_handlesig(cs, gdbsig); - if (gdbsig != TARGET_SIGTRAP) { - exit(EXIT_FAILURE); - } - } - - process_pending_signals(env); - } -} - -#endif /* TARGET_NIOS2 */ - #ifdef TARGET_OPENRISC void cpu_loop(CPUOpenRISCState *env) @@ -2545,36 +2442,6 @@ int main(int argc, char **argv, char **envp) env->regs[31] = regs->r31; env->sregs[SR_PC] = regs->pc; } -#elif defined(TARGET_NIOS2) - { - env->regs[0] = 0; - env->regs[1] = regs->r1; - env->regs[2] = regs->r2; - env->regs[3] = regs->r3; - env->regs[4] = regs->r4; - env->regs[5] = regs->r5; - env->regs[6] = regs->r6; - env->regs[7] = regs->r7; - env->regs[8] = regs->r8; - env->regs[9] = regs->r9; - env->regs[10] = regs->r10; - env->regs[11] = regs->r11; - env->regs[12] = regs->r12; - env->regs[13] = regs->r13; - env->regs[14] = regs->r14; - env->regs[15] = regs->r15; - /* TODO: unsigned long orig_r2; */ - env->regs[R_RA] = regs->ra; - env->regs[R_FP] = regs->fp; - env->regs[R_SP] = regs->sp; - env->regs[R_GP] = regs->gp; - env->regs[CR_ESTATUS] = regs->estatus; - env->regs[R_EA] = regs->ea; - /* TODO: unsigned long orig_r7; */ - - /* Emulate eret when starting thread. */ - env->regs[R_PC] = regs->ea; - } #elif defined(TARGET_OPENRISC) { int i; |