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s390/compat: convert system call wrappers to C part 05

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Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
This commit is contained in:
Heiko Carstens 2014-02-27 15:16:04 +01:00
parent c355ce182a
commit 86d295e1cc
4 changed files with 23 additions and 65 deletions
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11
arch/s390/kernel/compat_wrap.c
View file

@ -1,5 +1,6 @@
#include <linux/syscalls.h>
#include <linux/compat.h>
#include "entry.h"
#define COMPAT_SYSCALL_WRAP1(name, ...) \
COMPAT_SYSCALL_WRAPx(1, _##name, __VA_ARGS__)
@ -63,3 +64,13 @@ COMPAT_SYSCALL_WRAP1(swapoff, const char __user *, specialfile);
COMPAT_SYSCALL_WRAP1(fsync, unsigned int, fd);
COMPAT_SYSCALL_WRAP2(setdomainname, char __user *, name, int, len);
COMPAT_SYSCALL_WRAP1(newuname, struct new_utsname __user *, name);
COMPAT_SYSCALL_WRAP3(mprotect, compat_ulong_t, start, compat_size_t, len, compat_ulong_t, prot);
COMPAT_SYSCALL_WRAP3(init_module, void __user *, umod, compat_ulong_t, len, const char __user *, uargs);
COMPAT_SYSCALL_WRAP2(delete_module, const char __user *, name_user, unsigned int, flags);
COMPAT_SYSCALL_WRAP4(quotactl, unsigned int, cmd, const char __user *, special, qid_t, id, void __user *, addr);
COMPAT_SYSCALL_WRAP1(getpgid, compat_pid_t, pid);
COMPAT_SYSCALL_WRAP1(fchdir, unsigned int, fd);
COMPAT_SYSCALL_WRAP2(bdflush, int, func, compat_long_t, data);
COMPAT_SYSCALL_WRAP3(sysfs, int, option, compat_ulong_t, arg1, compat_ulong_t, arg2);
COMPAT_SYSCALL_WRAP1(s390_personality, unsigned int, personality);
COMPAT_SYSCALL_WRAP5(llseek, unsigned int, fd, u32, high, u32, low, loff_t __user *, result, unsigned int, whence);

55
arch/s390/kernel/compat_wrapper.S
View file

@ -128,61 +128,6 @@ ENTRY(compat_sys_adjtimex_wrapper)
llgtr %r2,%r2 # struct compat_timex *
jg compat_sys_adjtimex # branch to system call
ENTRY(sys32_mprotect_wrapper)
llgtr %r2,%r2 # unsigned long (actually pointer
llgfr %r3,%r3 # size_t
llgfr %r4,%r4 # unsigned long
jg sys_mprotect # branch to system call
ENTRY(sys_init_module_wrapper)
llgtr %r2,%r2 # void *
llgfr %r3,%r3 # unsigned long
llgtr %r4,%r4 # char *
jg sys_init_module # branch to system call
ENTRY(sys_delete_module_wrapper)
llgtr %r2,%r2 # const char *
llgfr %r3,%r3 # unsigned int
jg sys_delete_module # branch to system call
ENTRY(sys32_quotactl_wrapper)
llgfr %r2,%r2 # unsigned int
llgtr %r3,%r3 # const char *
llgfr %r4,%r4 # qid_t
llgtr %r5,%r5 # caddr_t
jg sys_quotactl # branch to system call
ENTRY(sys32_getpgid_wrapper)
lgfr %r2,%r2 # pid_t
jg sys_getpgid # branch to system call
ENTRY(sys32_fchdir_wrapper)
llgfr %r2,%r2 # unsigned int
jg sys_fchdir # branch to system call
ENTRY(sys32_bdflush_wrapper)
lgfr %r2,%r2 # int
lgfr %r3,%r3 # long
jg sys_bdflush # branch to system call
ENTRY(sys32_sysfs_wrapper)
lgfr %r2,%r2 # int
llgfr %r3,%r3 # unsigned long
llgfr %r4,%r4 # unsigned long
jg sys_sysfs # branch to system call
ENTRY(sys32_personality_wrapper)
llgfr %r2,%r2 # unsigned int
jg sys_s390_personality # branch to system call
ENTRY(sys32_llseek_wrapper)
llgfr %r2,%r2 # unsigned int
llgfr %r3,%r3 # unsigned long
llgfr %r4,%r4 # unsigned long
llgtr %r5,%r5 # loff_t *
llgfr %r6,%r6 # unsigned int
jg sys_llseek # branch to system call
ENTRY(sys32_getdents_wrapper)
llgfr %r2,%r2 # unsigned int
llgtr %r3,%r3 # void *

2
arch/s390/kernel/entry.h
View file

@ -72,4 +72,6 @@ long sys_rt_sigreturn(void);
long sys32_sigreturn(void);
long sys32_rt_sigreturn(void);
long sys_s390_personality(unsigned int personality);
#endif /* _ENTRY_H */

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

@ -133,22 +133,22 @@ SYSCALL(sys_setdomainname,sys_setdomainname,compat_sys_setdomainname)
SYSCALL(sys_newuname,sys_newuname,compat_sys_newuname)
NI_SYSCALL /* modify_ldt for i386 */
SYSCALL(sys_adjtimex,sys_adjtimex,compat_sys_adjtimex_wrapper)
SYSCALL(sys_mprotect,sys_mprotect,sys32_mprotect_wrapper) /* 125 */
SYSCALL(sys_mprotect,sys_mprotect,compat_sys_mprotect) /* 125 */
SYSCALL(sys_sigprocmask,sys_sigprocmask,compat_sys_sigprocmask)
NI_SYSCALL /* old "create module" */
SYSCALL(sys_init_module,sys_init_module,sys_init_module_wrapper)
SYSCALL(sys_delete_module,sys_delete_module,sys_delete_module_wrapper)
SYSCALL(sys_init_module,sys_init_module,compat_sys_init_module)
SYSCALL(sys_delete_module,sys_delete_module,compat_sys_delete_module)
NI_SYSCALL /* 130: old get_kernel_syms */
SYSCALL(sys_quotactl,sys_quotactl,sys32_quotactl_wrapper)
SYSCALL(sys_getpgid,sys_getpgid,sys32_getpgid_wrapper)
SYSCALL(sys_fchdir,sys_fchdir,sys32_fchdir_wrapper)
SYSCALL(sys_bdflush,sys_bdflush,sys32_bdflush_wrapper)
SYSCALL(sys_sysfs,sys_sysfs,sys32_sysfs_wrapper) /* 135 */
SYSCALL(sys_personality,sys_s390_personality,sys32_personality_wrapper)
SYSCALL(sys_quotactl,sys_quotactl,compat_sys_quotactl)
SYSCALL(sys_getpgid,sys_getpgid,compat_sys_getpgid)
SYSCALL(sys_fchdir,sys_fchdir,compat_sys_fchdir)
SYSCALL(sys_bdflush,sys_bdflush,compat_sys_bdflush)
SYSCALL(sys_sysfs,sys_sysfs,compat_sys_sysfs) /* 135 */
SYSCALL(sys_personality,sys_s390_personality,compat_sys_s390_personality)
NI_SYSCALL /* for afs_syscall */
SYSCALL(sys_setfsuid16,sys_ni_syscall,compat_sys_s390_setfsuid16) /* old setfsuid16 syscall */
SYSCALL(sys_setfsgid16,sys_ni_syscall,compat_sys_s390_setfsgid16) /* old setfsgid16 syscall */
SYSCALL(sys_llseek,sys_llseek,sys32_llseek_wrapper) /* 140 */
SYSCALL(sys_llseek,sys_llseek,compat_sys_llseek) /* 140 */
SYSCALL(sys_getdents,sys_getdents,sys32_getdents_wrapper)
SYSCALL(sys_select,sys_select,compat_sys_select_wrapper)
SYSCALL(sys_flock,sys_flock,sys32_flock_wrapper)