| Message ID | 1402849113-11402-12-git-send-email-paul@archlinuxmips.org |
|---|---|
| State | New |
| Headers | show |
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 <paul@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 >
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 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);
Add support for the ioprio_get & ioprio_set syscalls, allowing their use by target programs. Signed-off-by: Paul Burton <paul@archlinuxmips.org> --- linux-user/syscall.c | 18 ++++++++++++++++++ 1 file changed, 18 insertions(+)