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-rw-r--r--arch/s390/Kconfig1
-rw-r--r--arch/s390/include/asm/unistd.h8
-rw-r--r--arch/s390/kernel/compat_linux.c86
-rw-r--r--arch/s390/kernel/compat_linux.h5
-rw-r--r--arch/s390/kernel/compat_wrapper.S64
-rw-r--r--arch/s390/kernel/sys_s390.c14
-rw-r--r--arch/s390/kernel/syscalls.S18
7 files changed, 14 insertions, 182 deletions
diff --git a/arch/s390/Kconfig b/arch/s390/Kconfig
index ce640aff61a1..2c9789da0e24 100644
--- a/arch/s390/Kconfig
+++ b/arch/s390/Kconfig
@@ -132,7 +132,6 @@ config S390
select HAVE_PERF_EVENTS
select HAVE_REGS_AND_STACK_ACCESS_API
select HAVE_SYSCALL_TRACEPOINTS
- select HAVE_SYSCALL_WRAPPERS
select HAVE_UID16 if 32BIT
select HAVE_VIRT_CPU_ACCOUNTING
select VIRT_TO_BUS
diff --git a/arch/s390/include/asm/unistd.h b/arch/s390/include/asm/unistd.h
index a6667a952969..651886353551 100644
--- a/arch/s390/include/asm/unistd.h
+++ b/arch/s390/include/asm/unistd.h
@@ -54,12 +54,4 @@
#define __ARCH_WANT_SYS_VFORK
#define __ARCH_WANT_SYS_CLONE
-/*
- * "Conditional" syscalls
- *
- * What we want is __attribute__((weak,alias("sys_ni_syscall"))),
- * but it doesn't work on all toolchains, so we just do it by hand
- */
-#define cond_syscall(x) asm(".weak\t" #x "\n\t.set\t" #x ",sys_ni_syscall")
-
#endif /* _ASM_S390_UNISTD_H_ */
diff --git a/arch/s390/kernel/compat_linux.c b/arch/s390/kernel/compat_linux.c
index 19f26de27fae..8b6e4f5288a2 100644
--- a/arch/s390/kernel/compat_linux.c
+++ b/arch/s390/kernel/compat_linux.c
@@ -288,51 +288,13 @@ asmlinkage long sys32_getegid16(void)
return high2lowgid(from_kgid_munged(current_user_ns(), current_egid()));
}
-/*
- * sys32_ipc() is the de-multiplexer for the SysV IPC calls in 32bit emulation.
- *
- * This is really horribly ugly.
- */
#ifdef CONFIG_SYSVIPC
-asmlinkage long sys32_ipc(u32 call, int first, int second, int third, u32 ptr)
+COMPAT_SYSCALL_DEFINE5(s390_ipc, uint, call, int, first, unsigned long, second,
+ unsigned long, third, compat_uptr_t, ptr)
{
if (call >> 16) /* hack for backward compatibility */
return -EINVAL;
- switch (call) {
- case SEMTIMEDOP:
- return compat_sys_semtimedop(first, compat_ptr(ptr),
- second, compat_ptr(third));
- case SEMOP:
- /* struct sembuf is the same on 32 and 64bit :)) */
- return sys_semtimedop(first, compat_ptr(ptr),
- second, NULL);
- case SEMGET:
- return sys_semget(first, second, third);
- case SEMCTL:
- return compat_sys_semctl(first, second, third,
- compat_ptr(ptr));
- case MSGSND:
- return compat_sys_msgsnd(first, second, third,
- compat_ptr(ptr));
- case MSGRCV:
- return compat_sys_msgrcv(first, second, 0, third,
- 0, compat_ptr(ptr));
- case MSGGET:
- return sys_msgget((key_t) first, second);
- case MSGCTL:
- return compat_sys_msgctl(first, second, compat_ptr(ptr));
- case SHMAT:
- return compat_sys_shmat(first, second, third,
- 0, compat_ptr(ptr));
- case SHMDT:
- return sys_shmdt(compat_ptr(ptr));
- case SHMGET:
- return sys_shmget(first, (unsigned)second, third);
- case SHMCTL:
- return compat_sys_shmctl(first, second, compat_ptr(ptr));
- }
-
- return -ENOSYS;
+ return compat_sys_ipc(call, first, second, third, ptr, third);
}
#endif
@@ -373,48 +335,6 @@ asmlinkage compat_ssize_t sys32_readahead(int fd, u32 offhi, u32 offlo, s32 coun
return sys_readahead(fd, ((loff_t)AA(offhi) << 32) | AA(offlo), count);
}
-asmlinkage long sys32_sendfile(int out_fd, int in_fd, compat_off_t __user *offset, size_t count)
-{
- mm_segment_t old_fs = get_fs();
- int ret;
- off_t of;
-
- if (offset && get_user(of, offset))
- return -EFAULT;
-
- set_fs(KERNEL_DS);
- ret = sys_sendfile(out_fd, in_fd,
- offset ? (off_t __force __user *) &of : NULL, count);
- set_fs(old_fs);
-
- if (offset && put_user(of, offset))
- return -EFAULT;
-
- return ret;
-}
-
-asmlinkage long sys32_sendfile64(int out_fd, int in_fd,
- compat_loff_t __user *offset, s32 count)
-{
- mm_segment_t old_fs = get_fs();
- int ret;
- loff_t lof;
-
- if (offset && get_user(lof, offset))
- return -EFAULT;
-
- set_fs(KERNEL_DS);
- ret = sys_sendfile64(out_fd, in_fd,
- offset ? (loff_t __force __user *) &lof : NULL,
- count);
- set_fs(old_fs);
-
- if (offset && put_user(lof, offset))
- return -EFAULT;
-
- return ret;
-}
-
struct stat64_emu31 {
unsigned long long st_dev;
unsigned int __pad1;
diff --git a/arch/s390/kernel/compat_linux.h b/arch/s390/kernel/compat_linux.h
index 00d92a5a6f6c..976518c0592a 100644
--- a/arch/s390/kernel/compat_linux.h
+++ b/arch/s390/kernel/compat_linux.h
@@ -94,7 +94,6 @@ long sys32_getuid16(void);
long sys32_geteuid16(void);
long sys32_getgid16(void);
long sys32_getegid16(void);
-long sys32_ipc(u32 call, int first, int second, int third, u32 ptr);
long sys32_truncate64(const char __user * path, unsigned long high,
unsigned long low);
long sys32_ftruncate64(unsigned int fd, unsigned long high, unsigned long low);
@@ -106,10 +105,6 @@ long sys32_pread64(unsigned int fd, char __user *ubuf, size_t count,
long sys32_pwrite64(unsigned int fd, const char __user *ubuf,
size_t count, u32 poshi, u32 poslo);
compat_ssize_t sys32_readahead(int fd, u32 offhi, u32 offlo, s32 count);
-long sys32_sendfile(int out_fd, int in_fd, compat_off_t __user *offset,
- size_t count);
-long sys32_sendfile64(int out_fd, int in_fd, compat_loff_t __user *offset,
- s32 count);
long sys32_stat64(const char __user * filename, struct stat64_emu31 __user * statbuf);
long sys32_lstat64(const char __user * filename,
struct stat64_emu31 __user * statbuf);
diff --git a/arch/s390/kernel/compat_wrapper.S b/arch/s390/kernel/compat_wrapper.S
index 3c98c4dc5aca..17644c8e10e1 100644
--- a/arch/s390/kernel/compat_wrapper.S
+++ b/arch/s390/kernel/compat_wrapper.S
@@ -258,11 +258,6 @@ ENTRY(sys32_mmap2_wrapper)
llgtr %r2,%r2 # struct mmap_arg_struct_emu31 *
jg sys32_mmap2 # branch to system call
-ENTRY(compat_sys_getrusage_wrapper)
- lgfr %r2,%r2 # int
- llgtr %r3,%r3 # struct rusage_emu31 *
- jg compat_sys_getrusage # branch to system call
-
ENTRY(compat_sys_gettimeofday_wrapper)
llgtr %r2,%r2 # struct timeval_emu31 *
llgtr %r3,%r3 # struct timezone *
@@ -393,14 +388,6 @@ ENTRY(compat_sys_sysinfo_wrapper)
llgtr %r2,%r2 # struct sysinfo_emu31 *
jg compat_sys_sysinfo # branch to system call
-ENTRY(sys32_ipc_wrapper)
- llgfr %r2,%r2 # uint
- lgfr %r3,%r3 # int
- lgfr %r4,%r4 # int
- lgfr %r5,%r5 # int
- llgfr %r6,%r6 # u32
- jg sys32_ipc # branch to system call
-
ENTRY(sys32_fsync_wrapper)
llgfr %r2,%r2 # unsigned int
jg sys_fsync # branch to system call
@@ -666,13 +653,6 @@ ENTRY(sys32_capset_wrapper)
llgtr %r3,%r3 # const cap_user_data_t
jg sys_capset # branch to system call
-ENTRY(sys32_sendfile_wrapper)
- lgfr %r2,%r2 # int
- lgfr %r3,%r3 # int
- llgtr %r4,%r4 # __kernel_off_emu31_t *
- llgfr %r5,%r5 # size_t
- jg sys32_sendfile # branch to system call
-
#sys32_vfork_wrapper # done in vfork_glue
ENTRY(sys32_truncate64_wrapper)
@@ -938,13 +918,6 @@ ENTRY(sys_epoll_wait_wrapper)
lgfr %r5,%r5 # int
jg sys_epoll_wait # branch to system call
-ENTRY(sys32_lookup_dcookie_wrapper)
- sllg %r2,%r2,32 # get high word of 64bit dcookie
- or %r2,%r3 # get low word of 64bit dcookie
- llgtr %r3,%r4 # char *
- llgfr %r4,%r5 # size_t
- jg sys_lookup_dcookie
-
ENTRY(sys32_fadvise64_wrapper)
lgfr %r2,%r2 # int
sllg %r3,%r3,32 # get high word of 64bit loff_t
@@ -1264,29 +1237,12 @@ ENTRY(sys_tee_wrapper)
llgfr %r5,%r5 # unsigned int
jg sys_tee
-ENTRY(compat_sys_vmsplice_wrapper)
- lgfr %r2,%r2 # int
- llgtr %r3,%r3 # compat_iovec *
- llgfr %r4,%r4 # unsigned int
- llgfr %r5,%r5 # unsigned int
- jg compat_sys_vmsplice
-
ENTRY(sys_getcpu_wrapper)
llgtr %r2,%r2 # unsigned *
llgtr %r3,%r3 # unsigned *
llgtr %r4,%r4 # struct getcpu_cache *
jg sys_getcpu
-ENTRY(compat_sys_epoll_pwait_wrapper)
- lgfr %r2,%r2 # int
- llgtr %r3,%r3 # struct compat_epoll_event *
- lgfr %r4,%r4 # int
- lgfr %r5,%r5 # int
- llgtr %r6,%r6 # compat_sigset_t *
- llgf %r0,164(%r15) # compat_size_t
- stg %r0,160(%r15)
- jg compat_sys_epoll_pwait
-
ENTRY(compat_sys_utimes_wrapper)
llgtr %r2,%r2 # char *
llgtr %r3,%r3 # struct compat_timeval *
@@ -1299,12 +1255,6 @@ ENTRY(compat_sys_utimensat_wrapper)
lgfr %r5,%r5 # int
jg compat_sys_utimensat
-ENTRY(compat_sys_signalfd_wrapper)
- lgfr %r2,%r2 # int
- llgtr %r3,%r3 # compat_sigset_t *
- llgfr %r4,%r4 # compat_size_t
- jg compat_sys_signalfd
-
ENTRY(sys_eventfd_wrapper)
llgfr %r2,%r2 # unsigned int
jg sys_eventfd
@@ -1323,13 +1273,6 @@ ENTRY(sys_timerfd_create_wrapper)
lgfr %r3,%r3 # int
jg sys_timerfd_create
-ENTRY(compat_sys_signalfd4_wrapper)
- lgfr %r2,%r2 # int
- llgtr %r3,%r3 # compat_sigset_t *
- llgfr %r4,%r4 # compat_size_t
- lgfr %r5,%r5 # int
- jg compat_sys_signalfd4
-
ENTRY(sys_eventfd2_wrapper)
llgfr %r2,%r2 # unsigned int
lgfr %r3,%r3 # int
@@ -1361,13 +1304,6 @@ ENTRY(sys32_readahead_wrapper)
lgfr %r5,%r5 # s32
jg sys32_readahead # branch to system call
-ENTRY(sys32_sendfile64_wrapper)
- lgfr %r2,%r2 # int
- lgfr %r3,%r3 # int
- llgtr %r4,%r4 # compat_loff_t *
- lgfr %r5,%r5 # s32
- jg sys32_sendfile64 # branch to system call
-
ENTRY(sys_tkill_wrapper)
lgfr %r2,%r2 # pid_t
lgfr %r3,%r3 # int
diff --git a/arch/s390/kernel/sys_s390.c b/arch/s390/kernel/sys_s390.c
index d0964d22adb5..23eb222c1658 100644
--- a/arch/s390/kernel/sys_s390.c
+++ b/arch/s390/kernel/sys_s390.c
@@ -132,19 +132,9 @@ SYSCALL_DEFINE1(s390_fadvise64_64, struct fadvise64_64_args __user *, args)
* to
* %r2: fd, %r3: mode, %r4/%r5: offset, 96(%r15)-103(%r15): len
*/
-SYSCALL_DEFINE(s390_fallocate)(int fd, int mode, loff_t offset,
- u32 len_high, u32 len_low)
+SYSCALL_DEFINE5(s390_fallocate, int, fd, int, mode, loff_t, offset,
+ u32, len_high, u32, len_low)
{
return sys_fallocate(fd, mode, offset, ((u64)len_high << 32) | len_low);
}
-#ifdef CONFIG_HAVE_SYSCALL_WRAPPERS
-asmlinkage long SyS_s390_fallocate(long fd, long mode, loff_t offset,
- long len_high, long len_low)
-{
- return SYSC_s390_fallocate((int) fd, (int) mode, offset,
- (u32) len_high, (u32) len_low);
-}
-SYSCALL_ALIAS(sys_s390_fallocate, SyS_s390_fallocate);
-#endif
-
#endif
diff --git a/arch/s390/kernel/syscalls.S b/arch/s390/kernel/syscalls.S
index 630b935d1284..d2baabed7148 100644
--- a/arch/s390/kernel/syscalls.S
+++ b/arch/s390/kernel/syscalls.S
@@ -85,7 +85,7 @@ SYSCALL(sys_sigpending,sys_sigpending,compat_sys_sigpending_wrapper)
SYSCALL(sys_sethostname,sys_sethostname,sys32_sethostname_wrapper)
SYSCALL(sys_setrlimit,sys_setrlimit,compat_sys_setrlimit_wrapper) /* 75 */
SYSCALL(sys_old_getrlimit,sys_getrlimit,compat_sys_old_getrlimit_wrapper)
-SYSCALL(sys_getrusage,sys_getrusage,compat_sys_getrusage_wrapper)
+SYSCALL(sys_getrusage,sys_getrusage,compat_sys_getrusage)
SYSCALL(sys_gettimeofday,sys_gettimeofday,compat_sys_gettimeofday_wrapper)
SYSCALL(sys_settimeofday,sys_settimeofday,compat_sys_settimeofday_wrapper)
SYSCALL(sys_getgroups16,sys_ni_syscall,sys32_getgroups16_wrapper) /* 80 old getgroups16 syscall */
@@ -118,14 +118,14 @@ SYSCALL(sys_newstat,sys_newstat,compat_sys_newstat_wrapper)
SYSCALL(sys_newlstat,sys_newlstat,compat_sys_newlstat_wrapper)
SYSCALL(sys_newfstat,sys_newfstat,compat_sys_newfstat_wrapper)
NI_SYSCALL /* old uname syscall */
-SYSCALL(sys_lookup_dcookie,sys_lookup_dcookie,sys32_lookup_dcookie_wrapper) /* 110 */
+SYSCALL(sys_lookup_dcookie,sys_lookup_dcookie,compat_sys_lookup_dcookie) /* 110 */
SYSCALL(sys_vhangup,sys_vhangup,sys_vhangup)
NI_SYSCALL /* old "idle" system call */
NI_SYSCALL /* vm86old for i386 */
SYSCALL(sys_wait4,sys_wait4,compat_sys_wait4)
SYSCALL(sys_swapoff,sys_swapoff,sys32_swapoff_wrapper) /* 115 */
SYSCALL(sys_sysinfo,sys_sysinfo,compat_sys_sysinfo_wrapper)
-SYSCALL(sys_s390_ipc,sys_s390_ipc,sys32_ipc_wrapper)
+SYSCALL(sys_s390_ipc,sys_s390_ipc,compat_sys_s390_ipc)
SYSCALL(sys_fsync,sys_fsync,sys32_fsync_wrapper)
SYSCALL(sys_sigreturn,sys_sigreturn,sys32_sigreturn)
SYSCALL(sys_clone,sys_clone,sys_clone_wrapper) /* 120 */
@@ -195,7 +195,7 @@ 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_sigaltstack,sys_sigaltstack,compat_sys_sigaltstack)
-SYSCALL(sys_sendfile,sys_sendfile64,sys32_sendfile_wrapper)
+SYSCALL(sys_sendfile,sys_sendfile64,compat_sys_sendfile)
NI_SYSCALL /* streams1 */
NI_SYSCALL /* streams2 */
SYSCALL(sys_vfork,sys_vfork,sys_vfork) /* 190 */
@@ -231,7 +231,7 @@ SYSCALL(sys_madvise,sys_madvise,sys32_madvise_wrapper)
SYSCALL(sys_getdents64,sys_getdents64,sys32_getdents64_wrapper) /* 220 */
SYSCALL(sys_fcntl64,sys_ni_syscall,compat_sys_fcntl64_wrapper)
SYSCALL(sys_readahead,sys_readahead,sys32_readahead_wrapper)
-SYSCALL(sys_sendfile64,sys_ni_syscall,sys32_sendfile64_wrapper)
+SYSCALL(sys_sendfile64,sys_ni_syscall,compat_sys_sendfile64)
SYSCALL(sys_setxattr,sys_setxattr,sys32_setxattr_wrapper)
SYSCALL(sys_lsetxattr,sys_lsetxattr,sys32_lsetxattr_wrapper) /* 225 */
SYSCALL(sys_fsetxattr,sys_fsetxattr,sys32_fsetxattr_wrapper)
@@ -317,20 +317,20 @@ SYSCALL(sys_get_robust_list,sys_get_robust_list,compat_sys_get_robust_list)
SYSCALL(sys_splice,sys_splice,sys_splice_wrapper)
SYSCALL(sys_sync_file_range,sys_sync_file_range,sys_sync_file_range_wrapper)
SYSCALL(sys_tee,sys_tee,sys_tee_wrapper)
-SYSCALL(sys_vmsplice,sys_vmsplice,compat_sys_vmsplice_wrapper)
+SYSCALL(sys_vmsplice,sys_vmsplice,compat_sys_vmsplice)
NI_SYSCALL /* 310 sys_move_pages */
SYSCALL(sys_getcpu,sys_getcpu,sys_getcpu_wrapper)
-SYSCALL(sys_epoll_pwait,sys_epoll_pwait,compat_sys_epoll_pwait_wrapper)
+SYSCALL(sys_epoll_pwait,sys_epoll_pwait,compat_sys_epoll_pwait)
SYSCALL(sys_utimes,sys_utimes,compat_sys_utimes_wrapper)
SYSCALL(sys_s390_fallocate,sys_fallocate,sys_fallocate_wrapper)
SYSCALL(sys_utimensat,sys_utimensat,compat_sys_utimensat_wrapper) /* 315 */
-SYSCALL(sys_signalfd,sys_signalfd,compat_sys_signalfd_wrapper)
+SYSCALL(sys_signalfd,sys_signalfd,compat_sys_signalfd)
NI_SYSCALL /* 317 old sys_timer_fd */
SYSCALL(sys_eventfd,sys_eventfd,sys_eventfd_wrapper)
SYSCALL(sys_timerfd_create,sys_timerfd_create,sys_timerfd_create_wrapper)
SYSCALL(sys_timerfd_settime,sys_timerfd_settime,compat_sys_timerfd_settime) /* 320 */
SYSCALL(sys_timerfd_gettime,sys_timerfd_gettime,compat_sys_timerfd_gettime)
-SYSCALL(sys_signalfd4,sys_signalfd4,compat_sys_signalfd4_wrapper)
+SYSCALL(sys_signalfd4,sys_signalfd4,compat_sys_signalfd4)
SYSCALL(sys_eventfd2,sys_eventfd2,sys_eventfd2_wrapper)
SYSCALL(sys_inotify_init1,sys_inotify_init1,sys_inotify_init1_wrapper)
SYSCALL(sys_pipe2,sys_pipe2,sys_pipe2_wrapper) /* 325 */
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-11 22:38:36 +0000