diff options
Diffstat (limited to 'linux-user')
| -rw-r--r-- | linux-user/main.c | 140 | ||||
| -rw-r--r-- | linux-user/s390x/syscall.h | 2 |
2 files changed, 93 insertions, 49 deletions
diff --git a/linux-user/main.c b/linux-user/main.c index 9ade1bfabd..0181bc2112 100644 --- a/linux-user/main.c +++ b/linux-user/main.c @@ -2938,71 +2938,115 @@ void cpu_loop(CPUAlphaState *env) #ifdef TARGET_S390X void cpu_loop(CPUS390XState *env) { - int trapnr; + int trapnr, n, sig; target_siginfo_t info; + target_ulong addr; while (1) { - trapnr = cpu_s390x_exec (env); - + trapnr = cpu_s390x_exec(env); switch (trapnr) { case EXCP_INTERRUPT: - /* just indicate that signals should be handled asap */ + /* 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(env, info.si_signo, &info); - } + case EXCP_SVC: + n = env->int_svc_code; + if (!n) { + /* syscalls > 255 */ + n = env->regs[1]; } + env->psw.addr += env->int_svc_ilen; + env->regs[2] = do_syscall(env, n, env->regs[2], env->regs[3], + env->regs[4], env->regs[5], + env->regs[6], env->regs[7], 0, 0); break; - case EXCP_SVC: - { - int n = env->int_svc_code; - if (!n) { - /* syscalls > 255 */ - n = env->regs[1]; - } - env->psw.addr += env->int_svc_ilc; - env->regs[2] = do_syscall(env, n, - env->regs[2], - env->regs[3], - env->regs[4], - env->regs[5], - env->regs[6], - env->regs[7], - 0, 0); + + case EXCP_DEBUG: + sig = gdb_handlesig(env, TARGET_SIGTRAP); + if (sig) { + n = TARGET_TRAP_BRKPT; + goto do_signal_pc; } break; - case EXCP_ADDR: - { - info.si_signo = SIGSEGV; - info.si_errno = 0; + case EXCP_PGM: + n = env->int_pgm_code; + switch (n) { + case PGM_OPERATION: + case PGM_PRIVILEGED: + sig = SIGILL; + n = TARGET_ILL_ILLOPC; + goto do_signal_pc; + case PGM_PROTECTION: + case PGM_ADDRESSING: + sig = SIGSEGV; /* XXX: check env->error_code */ - info.si_code = TARGET_SEGV_MAPERR; - info._sifields._sigfault._addr = env->__excp_addr; - queue_signal(env, info.si_signo, &info); + n = TARGET_SEGV_MAPERR; + addr = env->__excp_addr; + goto do_signal; + case PGM_EXECUTE: + case PGM_SPECIFICATION: + case PGM_SPECIAL_OP: + case PGM_OPERAND: + do_sigill_opn: + sig = SIGILL; + n = TARGET_ILL_ILLOPN; + goto do_signal_pc; + + case PGM_FIXPT_OVERFLOW: + sig = SIGFPE; + n = TARGET_FPE_INTOVF; + goto do_signal_pc; + case PGM_FIXPT_DIVIDE: + sig = SIGFPE; + n = TARGET_FPE_INTDIV; + goto do_signal_pc; + + case PGM_DATA: + n = (env->fpc >> 8) & 0xff; + if (n == 0xff) { + /* compare-and-trap */ + goto do_sigill_opn; + } else { + /* An IEEE exception, simulated or otherwise. */ + if (n & 0x80) { + n = TARGET_FPE_FLTINV; + } else if (n & 0x40) { + n = TARGET_FPE_FLTDIV; + } else if (n & 0x20) { + n = TARGET_FPE_FLTOVF; + } else if (n & 0x10) { + n = TARGET_FPE_FLTUND; + } else if (n & 0x08) { + n = TARGET_FPE_FLTRES; + } else { + /* ??? Quantum exception; BFP, DFP error. */ + goto do_sigill_opn; + } + sig = SIGFPE; + goto do_signal_pc; + } + + default: + fprintf(stderr, "Unhandled program exception: %#x\n", n); + cpu_dump_state(env, stderr, fprintf, 0); + exit(1); } break; - case EXCP_SPEC: - { - fprintf(stderr,"specification exception insn 0x%08x%04x\n", ldl(env->psw.addr), lduw(env->psw.addr + 4)); - info.si_signo = SIGILL; - info.si_errno = 0; - info.si_code = TARGET_ILL_ILLOPC; - info._sifields._sigfault._addr = env->__excp_addr; - queue_signal(env, info.si_signo, &info); - } + + do_signal_pc: + addr = env->psw.addr; + do_signal: + info.si_signo = sig; + info.si_errno = 0; + info.si_code = n; + info._sifields._sigfault._addr = addr; + queue_signal(env, info.si_signo, &info); break; + default: - printf ("Unhandled trap: 0x%x\n", trapnr); + fprintf(stderr, "Unhandled trap: 0x%x\n", trapnr); cpu_dump_state(env, stderr, fprintf, 0); - exit (1); + exit(1); } process_pending_signals (env); } diff --git a/linux-user/s390x/syscall.h b/linux-user/s390x/syscall.h index c2ea151ea5..e4603b79c3 100644 --- a/linux-user/s390x/syscall.h +++ b/linux-user/s390x/syscall.h @@ -16,7 +16,7 @@ struct target_pt_regs { target_psw_t psw; abi_ulong gprs[TARGET_NUM_GPRS]; abi_ulong orig_gpr2; - unsigned short ilc; + unsigned short ilen; unsigned short trap; }; |