diff options
Diffstat (limited to 'linux-user/syscall.c')
| -rw-r--r-- | linux-user/syscall.c | 33 |
1 files changed, 17 insertions, 16 deletions
diff --git a/linux-user/syscall.c b/linux-user/syscall.c index 656f78e..2107883 100644 --- a/linux-user/syscall.c +++ b/linux-user/syscall.c @@ -2229,7 +2229,7 @@ static bitmask_transtbl fcntl_flags_tbl[] = { /* NOTE: there is really one LDT for all the threads */ uint8_t *ldt_table; -static int read_ldt(abi_ulong ptr, unsigned long bytecount) +static abi_long read_ldt(abi_ulong ptr, unsigned long bytecount) { int size; void *p; @@ -2241,7 +2241,7 @@ static int read_ldt(abi_ulong ptr, unsigned long bytecount) size = bytecount; p = lock_user(VERIFY_WRITE, ptr, size, 0); if (!p) - return -EFAULT; + return -TARGET_EFAULT; /* ??? Should this by byteswapped? */ memcpy(p, ldt_table, size); unlock_user(p, ptr, size); @@ -2249,9 +2249,8 @@ static int read_ldt(abi_ulong ptr, unsigned long bytecount) } /* XXX: add locking support */ -/* write_ldt() returns host errnos */ -static int write_ldt(CPUX86State *env, - abi_ulong ptr, unsigned long bytecount, int oldmode) +static abi_long write_ldt(CPUX86State *env, + abi_ulong ptr, unsigned long bytecount, int oldmode) { struct target_modify_ldt_ldt_s ldt_info; struct target_modify_ldt_ldt_s *target_ldt_info; @@ -2260,9 +2259,9 @@ static int write_ldt(CPUX86State *env, uint32_t *lp, entry_1, entry_2; if (bytecount != sizeof(ldt_info)) - return -EINVAL; + return -TARGET_EINVAL; if (!lock_user_struct(VERIFY_READ, target_ldt_info, ptr, 1)) - return -EFAULT; + return -TARGET_EFAULT; ldt_info.entry_number = tswap32(target_ldt_info->entry_number); ldt_info.base_addr = tswapl(target_ldt_info->base_addr); ldt_info.limit = tswap32(target_ldt_info->limit); @@ -2270,7 +2269,7 @@ static int write_ldt(CPUX86State *env, unlock_user_struct(target_ldt_info, ptr, 0); if (ldt_info.entry_number >= TARGET_LDT_ENTRIES) - return -EINVAL; + return -TARGET_EINVAL; seg_32bit = ldt_info.flags & 1; contents = (ldt_info.flags >> 1) & 3; read_exec_only = (ldt_info.flags >> 3) & 1; @@ -2280,15 +2279,15 @@ static int write_ldt(CPUX86State *env, if (contents == 3) { if (oldmode) - return -EINVAL; + return -TARGET_EINVAL; if (seg_not_present == 0) - return -EINVAL; + return -TARGET_EINVAL; } /* allocate the LDT */ if (!ldt_table) { ldt_table = malloc(TARGET_LDT_ENTRIES * TARGET_LDT_ENTRY_SIZE); if (!ldt_table) - return -ENOMEM; + return -TARGET_ENOMEM; memset(ldt_table, 0, TARGET_LDT_ENTRIES * TARGET_LDT_ENTRY_SIZE); env->ldt.base = h2g(ldt_table); env->ldt.limit = 0xffff; @@ -2333,11 +2332,10 @@ install: } /* specific and weird i386 syscalls */ -/* do_modify_ldt() returns host errnos (it is inconsistent with the - other do_*() functions which return target errnos). */ -int do_modify_ldt(CPUX86State *env, int func, abi_ulong ptr, unsigned long bytecount) +abi_long do_modify_ldt(CPUX86State *env, int func, abi_ulong ptr, + unsigned long bytecount) { - int ret = -ENOSYS; + abi_long ret; switch (func) { case 0: @@ -2349,6 +2347,9 @@ int do_modify_ldt(CPUX86State *env, int func, abi_ulong ptr, unsigned long bytec case 0x11: ret = write_ldt(env, ptr, bytecount, 0); break; + default: + ret = -TARGET_ENOSYS; + break; } return ret; } @@ -4174,7 +4175,7 @@ abi_long do_syscall(void *cpu_env, int num, abi_long arg1, break; #ifdef TARGET_I386 case TARGET_NR_modify_ldt: - ret = get_errno(do_modify_ldt(cpu_env, arg1, arg2, arg3)); + ret = do_modify_ldt(cpu_env, arg1, arg2, arg3); break; #if !defined(TARGET_X86_64) case TARGET_NR_vm86old: |