diff options
Diffstat (limited to 'linux-user/syscall.c')
| -rw-r--r-- | linux-user/syscall.c | 137 |
1 files changed, 127 insertions, 10 deletions
diff --git a/linux-user/syscall.c b/linux-user/syscall.c index e38552ca1c..1acf1f5b64 100644 --- a/linux-user/syscall.c +++ b/linux-user/syscall.c @@ -6390,25 +6390,142 @@ abi_long do_syscall(void *cpu_env, int num, abi_long arg1, #if defined(TARGET_NR_getxuid) && defined(TARGET_ALPHA) /* Alpha specific */ case TARGET_NR_getxuid: - { - uid_t euid; - euid=geteuid(); - ((CPUAlphaState *)cpu_env)->ir[IR_A4]=euid; - } + { + uid_t euid; + euid=geteuid(); + ((CPUAlphaState *)cpu_env)->ir[IR_A4]=euid; + } ret = get_errno(getuid()); break; #endif #if defined(TARGET_NR_getxgid) && defined(TARGET_ALPHA) /* Alpha specific */ case TARGET_NR_getxgid: - { - uid_t egid; - egid=getegid(); - ((CPUAlphaState *)cpu_env)->ir[IR_A4]=egid; - } + { + uid_t egid; + egid=getegid(); + ((CPUAlphaState *)cpu_env)->ir[IR_A4]=egid; + } ret = get_errno(getgid()); break; #endif +#if defined(TARGET_NR_osf_getsysinfo) && defined(TARGET_ALPHA) + /* Alpha specific */ + case TARGET_NR_osf_getsysinfo: + ret = -TARGET_EOPNOTSUPP; + switch (arg1) { + case TARGET_GSI_IEEE_FP_CONTROL: + { + uint64_t swcr, fpcr = cpu_alpha_load_fpcr (cpu_env); + + /* Copied from linux ieee_fpcr_to_swcr. */ + swcr = (fpcr >> 35) & SWCR_STATUS_MASK; + swcr |= (fpcr >> 36) & SWCR_MAP_DMZ; + swcr |= (~fpcr >> 48) & (SWCR_TRAP_ENABLE_INV + | SWCR_TRAP_ENABLE_DZE + | SWCR_TRAP_ENABLE_OVF); + swcr |= (~fpcr >> 57) & (SWCR_TRAP_ENABLE_UNF + | SWCR_TRAP_ENABLE_INE); + swcr |= (fpcr >> 47) & SWCR_MAP_UMZ; + swcr |= (~fpcr >> 41) & SWCR_TRAP_ENABLE_DNO; + + if (put_user_u64 (swcr, arg2)) + goto efault; + ret = 0; + } + break; + + /* case GSI_IEEE_STATE_AT_SIGNAL: + -- Not implemented in linux kernel. + case GSI_UACPROC: + -- Retrieves current unaligned access state; not much used. + case GSI_PROC_TYPE: + -- Retrieves implver information; surely not used. + case GSI_GET_HWRPB: + -- Grabs a copy of the HWRPB; surely not used. + */ + } + break; +#endif +#if defined(TARGET_NR_osf_setsysinfo) && defined(TARGET_ALPHA) + /* Alpha specific */ + case TARGET_NR_osf_setsysinfo: + ret = -TARGET_EOPNOTSUPP; + switch (arg1) { + case TARGET_SSI_IEEE_FP_CONTROL: + case TARGET_SSI_IEEE_RAISE_EXCEPTION: + { + uint64_t swcr, fpcr, orig_fpcr; + + if (get_user_u64 (swcr, arg2)) + goto efault; + orig_fpcr = cpu_alpha_load_fpcr (cpu_env); + fpcr = orig_fpcr & FPCR_DYN_MASK; + + /* Copied from linux ieee_swcr_to_fpcr. */ + fpcr |= (swcr & SWCR_STATUS_MASK) << 35; + fpcr |= (swcr & SWCR_MAP_DMZ) << 36; + fpcr |= (~swcr & (SWCR_TRAP_ENABLE_INV + | SWCR_TRAP_ENABLE_DZE + | SWCR_TRAP_ENABLE_OVF)) << 48; + fpcr |= (~swcr & (SWCR_TRAP_ENABLE_UNF + | SWCR_TRAP_ENABLE_INE)) << 57; + fpcr |= (swcr & SWCR_MAP_UMZ ? FPCR_UNDZ | FPCR_UNFD : 0); + fpcr |= (~swcr & SWCR_TRAP_ENABLE_DNO) << 41; + + cpu_alpha_store_fpcr (cpu_env, fpcr); + ret = 0; + + if (arg1 == TARGET_SSI_IEEE_RAISE_EXCEPTION) { + /* Old exceptions are not signaled. */ + fpcr &= ~(orig_fpcr & FPCR_STATUS_MASK); + + /* If any exceptions set by this call, and are unmasked, + send a signal. */ + /* ??? FIXME */ + } + } + break; + + /* case SSI_NVPAIRS: + -- Used with SSIN_UACPROC to enable unaligned accesses. + case SSI_IEEE_STATE_AT_SIGNAL: + case SSI_IEEE_IGNORE_STATE_AT_SIGNAL: + -- Not implemented in linux kernel + */ + } + break; +#endif +#ifdef TARGET_NR_osf_sigprocmask + /* Alpha specific. */ + case TARGET_NR_osf_sigprocmask: + { + abi_ulong mask; + int how = arg1; + sigset_t set, oldset; + + switch(arg1) { + case TARGET_SIG_BLOCK: + how = SIG_BLOCK; + break; + case TARGET_SIG_UNBLOCK: + how = SIG_UNBLOCK; + break; + case TARGET_SIG_SETMASK: + how = SIG_SETMASK; + break; + default: + ret = -TARGET_EINVAL; + goto fail; + } + mask = arg2; + target_to_host_old_sigset(&set, &mask); + sigprocmask(arg1, &set, &oldset); + host_to_target_old_sigset(&mask, &oldset); + ret = mask; + } + break; +#endif #ifdef TARGET_NR_getgid32 case TARGET_NR_getgid32: |