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s390/compat: convert system call wrappers to C part 07 

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
This commit is contained in:
Heiko Carstens 2014-02-27 16:49:10 +01:00
parent ce5cef7ede
commit 0ebe3eec1e
3 changed files with 20 additions and 76 deletions
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10
arch/s390/kernel/compat_wrap.c
View File

@ -84,3 +84,13 @@ COMPAT_SYSCALL_WRAP1(mlockall, int, flags);
COMPAT_SYSCALL_WRAP2(sched_setparam, compat_pid_t, pid, struct sched_param __user *, param);
COMPAT_SYSCALL_WRAP2(sched_getparam, compat_pid_t, pid, struct sched_param __user *, param);
COMPAT_SYSCALL_WRAP3(sched_setscheduler, compat_pid_t, pid, int, policy, struct sched_param __user *, param);
COMPAT_SYSCALL_WRAP1(sched_getscheduler, compat_pid_t, pid);
COMPAT_SYSCALL_WRAP1(sched_get_priority_max, int, policy);
COMPAT_SYSCALL_WRAP1(sched_get_priority_min, int, policy);
COMPAT_SYSCALL_WRAP5(mremap, u32, addr, u32, old_len, u32, new_len, u32, flags, u32, new_addr);
COMPAT_SYSCALL_WRAP3(poll, struct pollfd __user *, ufds, unsigned int, nfds, int, timeout);
COMPAT_SYSCALL_WRAP5(prctl, int, option, u32, arg2, u32, arg3, u32, arg4, u32, arg5);
COMPAT_SYSCALL_WRAP2(getcwd, char __user *, buf, u32, size);
COMPAT_SYSCALL_WRAP2(capget, cap_user_header_t, header, cap_user_data_t, dataptr);
COMPAT_SYSCALL_WRAP2(capset, cap_user_header_t, header, const cap_user_data_t, data);
COMPAT_SYSCALL_WRAP3(lchown, const char __user *, filename, compat_uid_t, user, compat_gid_t, group);

66
arch/s390/kernel/compat_wrapper.S
View File

@ -154,77 +154,11 @@ ENTRY(compat_sys_writev_wrapper)
llgfr %r4,%r4 # unsigned long
jg compat_sys_writev # branch to system call
ENTRY(sys32_sched_getscheduler_wrapper)
lgfr %r2,%r2 # pid_t
jg sys_sched_getscheduler # branch to system call
#sys32_sched_yield_wrapper # void
ENTRY(sys32_sched_get_priority_max_wrapper)
lgfr %r2,%r2 # int
jg sys_sched_get_priority_max # branch to system call
ENTRY(sys32_sched_get_priority_min_wrapper)
lgfr %r2,%r2 # int
jg sys_sched_get_priority_min # branch to system call
ENTRY(compat_sys_nanosleep_wrapper)
llgtr %r2,%r2 # struct compat_timespec *
llgtr %r3,%r3 # struct compat_timespec *
jg compat_sys_nanosleep # branch to system call
ENTRY(sys32_mremap_wrapper)
llgfr %r2,%r2 # unsigned long
llgfr %r3,%r3 # unsigned long
llgfr %r4,%r4 # unsigned long
llgfr %r5,%r5 # unsigned long
llgfr %r6,%r6 # unsigned long
jg sys_mremap # branch to system call
ENTRY(sys32_poll_wrapper)
llgtr %r2,%r2 # struct pollfd *
llgfr %r3,%r3 # unsigned int
lgfr %r4,%r4 # int
jg sys_poll # branch to system call
ENTRY(sys32_prctl_wrapper)
lgfr %r2,%r2 # int
llgfr %r3,%r3 # unsigned long
llgfr %r4,%r4 # unsigned long
llgfr %r5,%r5 # unsigned long
llgfr %r6,%r6 # unsigned long
jg sys_prctl # branch to system call
#sys32_rt_sigreturn_wrapper # done in rt_sigreturn_glue
ENTRY(sys32_getcwd_wrapper)
llgtr %r2,%r2 # char *
llgfr %r3,%r3 # unsigned long
jg sys_getcwd # branch to system call
ENTRY(sys32_capget_wrapper)
llgtr %r2,%r2 # cap_user_header_t
llgtr %r3,%r3 # cap_user_data_t
jg sys_capget # branch to system call
ENTRY(sys32_capset_wrapper)
llgtr %r2,%r2 # cap_user_header_t
llgtr %r3,%r3 # const cap_user_data_t
jg sys_capset # branch to system call
#sys32_vfork_wrapper # done in vfork_glue
ENTRY(sys32_lchown_wrapper)
llgtr %r2,%r2 # const char *
llgfr %r3,%r3 # uid_t
llgfr %r4,%r4 # gid_t
jg sys_lchown # branch to system call
#sys32_getuid_wrapper # void
#sys32_getgid_wrapper # void
#sys32_geteuid_wrapper # void
#sys32_getegid_wrapper # void
ENTRY(sys32_setreuid_wrapper)
llgfr %r2,%r2 # uid_t
llgfr %r3,%r3 # uid_t

20
arch/s390/kernel/syscalls.S
View File

@ -165,22 +165,22 @@ SYSCALL(sys_munlockall,sys_munlockall,sys_munlockall)
SYSCALL(sys_sched_setparam,sys_sched_setparam,compat_sys_sched_setparam)
SYSCALL(sys_sched_getparam,sys_sched_getparam,compat_sys_sched_getparam) /* 155 */
SYSCALL(sys_sched_setscheduler,sys_sched_setscheduler,compat_sys_sched_setscheduler)
SYSCALL(sys_sched_getscheduler,sys_sched_getscheduler,sys32_sched_getscheduler_wrapper)
SYSCALL(sys_sched_getscheduler,sys_sched_getscheduler,compat_sys_sched_getscheduler)
SYSCALL(sys_sched_yield,sys_sched_yield,sys_sched_yield)
SYSCALL(sys_sched_get_priority_max,sys_sched_get_priority_max,sys32_sched_get_priority_max_wrapper)
SYSCALL(sys_sched_get_priority_min,sys_sched_get_priority_min,sys32_sched_get_priority_min_wrapper) /* 160 */
SYSCALL(sys_sched_get_priority_max,sys_sched_get_priority_max,compat_sys_sched_get_priority_max)
SYSCALL(sys_sched_get_priority_min,sys_sched_get_priority_min,compat_sys_sched_get_priority_min) /* 160 */
SYSCALL(sys_sched_rr_get_interval,sys_sched_rr_get_interval,compat_sys_sched_rr_get_interval)
SYSCALL(sys_nanosleep,sys_nanosleep,compat_sys_nanosleep_wrapper)
SYSCALL(sys_mremap,sys_mremap,sys32_mremap_wrapper)
SYSCALL(sys_mremap,sys_mremap,compat_sys_mremap)
SYSCALL(sys_setresuid16,sys_ni_syscall,compat_sys_s390_setresuid16) /* old setresuid16 syscall */
SYSCALL(sys_getresuid16,sys_ni_syscall,compat_sys_s390_getresuid16) /* 165 old getresuid16 syscall */
NI_SYSCALL /* for vm86 */
NI_SYSCALL /* old sys_query_module */
SYSCALL(sys_poll,sys_poll,sys32_poll_wrapper)
SYSCALL(sys_poll,sys_poll,compat_sys_poll)
NI_SYSCALL /* old nfsservctl */
SYSCALL(sys_setresgid16,sys_ni_syscall,compat_sys_s390_setresgid16) /* 170 old setresgid16 syscall */
SYSCALL(sys_getresgid16,sys_ni_syscall,compat_sys_s390_getresgid16) /* old getresgid16 syscall */
SYSCALL(sys_prctl,sys_prctl,sys32_prctl_wrapper)
SYSCALL(sys_prctl,sys_prctl,compat_sys_prctl)
SYSCALL(sys_rt_sigreturn,sys_rt_sigreturn,sys32_rt_sigreturn)
SYSCALL(sys_rt_sigaction,sys_rt_sigaction,compat_sys_rt_sigaction)
SYSCALL(sys_rt_sigprocmask,sys_rt_sigprocmask,compat_sys_rt_sigprocmask) /* 175 */
@ -191,9 +191,9 @@ SYSCALL(sys_rt_sigsuspend,sys_rt_sigsuspend,compat_sys_rt_sigsuspend)
SYSCALL(sys_pread64,sys_pread64,compat_sys_s390_pread64) /* 180 */
SYSCALL(sys_pwrite64,sys_pwrite64,compat_sys_s390_pwrite64)
SYSCALL(sys_chown16,sys_ni_syscall,compat_sys_s390_chown16) /* old chown16 syscall */
SYSCALL(sys_getcwd,sys_getcwd,sys32_getcwd_wrapper)
SYSCALL(sys_capget,sys_capget,sys32_capget_wrapper)
SYSCALL(sys_capset,sys_capset,sys32_capset_wrapper) /* 185 */
SYSCALL(sys_getcwd,sys_getcwd,compat_sys_getcwd)
SYSCALL(sys_capget,sys_capget,compat_sys_capget)
SYSCALL(sys_capset,sys_capset,compat_sys_capset) /* 185 */
SYSCALL(sys_sigaltstack,sys_sigaltstack,compat_sys_sigaltstack)
SYSCALL(sys_sendfile,sys_sendfile64,compat_sys_sendfile)
NI_SYSCALL /* streams1 */
@ -206,7 +206,7 @@ SYSCALL(sys_ftruncate64,sys_ni_syscall,compat_sys_s390_ftruncate64)
SYSCALL(sys_stat64,sys_ni_syscall,compat_sys_s390_stat64) /* 195 */
SYSCALL(sys_lstat64,sys_ni_syscall,compat_sys_s390_lstat64)
SYSCALL(sys_fstat64,sys_ni_syscall,compat_sys_s390_fstat64)
SYSCALL(sys_lchown,sys_lchown,sys32_lchown_wrapper)
SYSCALL(sys_lchown,sys_lchown,compat_sys_lchown)
SYSCALL(sys_getuid,sys_getuid,sys_getuid)
SYSCALL(sys_getgid,sys_getgid,sys_getgid) /* 200 */
SYSCALL(sys_geteuid,sys_geteuid,sys_geteuid)