On Sun, Jun 15, 2014 at 05:18:28PM +0100, Paul Burton wrote:
Add support for the ioprio_get ioprio_set syscalls, allowing their
use by target programs.
Signed-off-by: Paul Burton p...@archlinuxmips.org
---
linux-user/syscall.c | 18 ++
1 file changed, 18 insertions(+)
diff --git a/linux-user/syscall.c b/linux-user/syscall.c
index 0830205..c7f176a 100644
--- a/linux-user/syscall.c
+++ b/linux-user/syscall.c
@@ -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);
+#ifdef __NR_ioprio_get
+_syscall2(int, ioprio_get, int, which, int, who)
+#endif
+#ifdef __NR_ioprio_set
+_syscall3(int, ioprio_set, int, which, int, who, int, ioprio)
+#endif
Since this is only used if both host and guest, thes needs to be
protected by both TARGET_NR_ioprio_get and __NR_ioprio_get. Else we get
compile error on some targets:
qemu/linux-user/syscall.c:256:16: error: ‘ioprio_get’ defined but not used
[-Werror=unused-function]
_syscall2(int, ioprio_get, int, which, int, who)
^
qemu/linux-user/syscall.c:147:13: note: in definition of macro ‘_syscall2’
static type name (type1 arg1,type2 arg2) \
^
static bitmask_transtbl fcntl_flags_tbl[] = {
{ TARGET_O_ACCMODE, TARGET_O_WRONLY,O_ACCMODE, O_WRONLY,},
@@ -9460,6 +9466,18 @@ 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);
--
2.0.0
