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linux-user: support ioprio_{get, set} syscalls 

Add support for the ioprio_get & ioprio_set syscalls, allowing their
use by target programs.

Signed-off-by: Paul Burton <paul@archlinuxmips.org>
Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
This commit is contained in:
Paul Burton 2014-06-22 11:25:43 +01:00 committed by Riku Voipio
parent 518343413f
commit ab31cda327
1 changed files with 18 additions and 0 deletions
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18
linux-user/syscall.c
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@ -252,6 +252,12 @@ _syscall2(int, capget, struct __user_cap_header_struct *, header,
struct __user_cap_data_struct *, data);
_syscall2(int, capset, struct __user_cap_header_struct *, header,
struct __user_cap_data_struct *, data);
#if defined(TARGET_NR_ioprio_get) && defined(__NR_ioprio_get)
_syscall2(int, ioprio_get, int, which, int, who)
#endif
#if defined(TARGET_NR_ioprio_set) && defined(__NR_ioprio_set)
_syscall3(int, ioprio_set, int, which, int, who, int, ioprio)
#endif
static bitmask_transtbl fcntl_flags_tbl[] = {
{ TARGET_O_ACCMODE, TARGET_O_WRONLY, O_ACCMODE, O_WRONLY, },
@ -9592,6 +9598,18 @@ abi_long do_syscall(void *cpu_env, int num, abi_long arg1,
break;
#endif
#if defined(TARGET_NR_ioprio_get) && defined(__NR_ioprio_get)
case TARGET_NR_ioprio_get:
ret = get_errno(ioprio_get(arg1, arg2));
break;
#endif
#if defined(TARGET_NR_ioprio_set) && defined(__NR_ioprio_set)
case TARGET_NR_ioprio_set:
ret = get_errno(ioprio_set(arg1, arg2, arg3));
break;
#endif
default:
unimplemented:
gemu_log("qemu: Unsupported syscall: %d\n", num);