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Commit 5b098c20 authored by Heiko Carstens's avatar Heiko Carstens
Browse files

s390/compat: get rid of compat wrapper assembly code 



Now that all compat syscalls have been converted to use the
COMPAT_SYSCALL_DEFINE macros, we don't need to compat syscall
wrapper assembly code anymore.
So remove it and fix up the system call table accordingly.

Signed-off-by: default avatarHeiko Carstens <heiko.carstens@de.ibm.com>
parent 9a205286

arch/s390/kernel/Makefile

+0 −1
Original line number Diff line number Diff line
@@ -50,7 +50,6 @@ compat-obj-$(CONFIG_AUDIT) += compat_audit.o 
obj-$(CONFIG_COMPAT)		+= compat_linux.o compat_signal.o \

					compat_wrapper.o compat_exec_domain.o \

					$(compat-obj-y)

obj-$(CONFIG_COMPAT)		+= compat_wrap.o



obj-$(CONFIG_STACKTRACE)	+= stacktrace.o

obj-$(CONFIG_KPROBES)		+= kprobes.o

arch/s390/kernel/compat_linux.h

+2 −0
Original line number Diff line number Diff line
@@ -112,5 +112,7 @@ long compat_sys_s390_fadvise64(int fd, u32 high, u32 low, compat_size_t len, int 
long compat_sys_s390_fadvise64_64(struct fadvise64_64_args __user *args);

long compat_sys_s390_sync_file_range(int fd, u32 offhigh, u32 offlow, u32 nhigh, u32 nlow, unsigned int flags);

long compat_sys_s390_fallocate(int fd, int mode, u32 offhigh, u32 offlow, u32 lenhigh, u32 lenlow);

long compat_sys_sigreturn(void);

long compat_sys_rt_sigreturn(void);



#endif /* _ASM_S390X_S390_H */

arch/s390/kernel/compat_signal.c

+2 −2
Original line number Diff line number Diff line
@@ -241,7 +241,7 @@ static int restore_sigregs_gprs_high(struct pt_regs *regs, __u32 __user *uregs) 
	return 0;

}



asmlinkage long sys32_sigreturn(void)

COMPAT_SYSCALL_DEFINE0(sigreturn)

{

	struct pt_regs *regs = task_pt_regs(current);

	sigframe32 __user *frame = (sigframe32 __user *)regs->gprs[15];
@@ -260,7 +260,7 @@ asmlinkage long sys32_sigreturn(void) 
	return 0;

}



asmlinkage long sys32_rt_sigreturn(void)

COMPAT_SYSCALL_DEFINE0(rt_sigreturn)

{

	struct pt_regs *regs = task_pt_regs(current);

	rt_sigframe32 __user *frame = (rt_sigframe32 __user *)regs->gprs[15];

arch/s390/kernel/compat_wrapper.S

deleted100644 → 0
+0 −369
Original line number Diff line number Diff line 
/*

*    wrapper for 31 bit compatible system calls.

*

*    Copyright IBM Corp. 2000, 2006

*    Author(s): Gerhard Tonn (ton@de.ibm.com),

*		Thomas Spatzier (tspat@de.ibm.com)

*/



#include <linux/linkage.h>



ENTRY(sys32_time_wrapper)

	llgtr	%r2,%r2			# int *

	jg	compat_sys_time		# branch to system call



#sys32_getpid_wrapper				# void



ENTRY(sys32_mount_wrapper)

	llgtr	%r2,%r2			# char *

	llgtr	%r3,%r3			# char *

	llgtr	%r4,%r4			# char *

	llgfr	%r5,%r5			# unsigned long

	llgtr	%r6,%r6			# void *

	jg	compat_sys_mount	# branch to system call



ENTRY(sys32_ptrace_wrapper)

	lgfr	%r2,%r2			# long

	lgfr	%r3,%r3			# long

	llgtr	%r4,%r4			# long

	llgfr	%r5,%r5			# long

	jg	compat_sys_ptrace	# branch to system call



ENTRY(compat_sys_utime_wrapper)

	llgtr	%r2,%r2			# char *

	llgtr	%r3,%r3			# struct compat_utimbuf *

	jg	compat_sys_utime	# branch to system call



ENTRY(compat_sys_times_wrapper)

	llgtr	%r2,%r2			# struct compat_tms *

	jg	compat_sys_times	# branch to system call



ENTRY(compat_sys_ioctl_wrapper)

	llgfr	%r2,%r2			# unsigned int

	llgfr	%r3,%r3			# unsigned int

	llgfr	%r4,%r4			# unsigned int

	jg	compat_sys_ioctl	# branch to system call



ENTRY(compat_sys_fcntl_wrapper)

	llgfr	%r2,%r2			# unsigned int

	llgfr	%r3,%r3			# unsigned int

	llgfr	%r4,%r4			# unsigned long

	jg	compat_sys_fcntl	# branch to system call



ENTRY(sys32_ustat_wrapper)

	llgfr	%r2,%r2			# dev_t

	llgtr	%r3,%r3			# struct ustat *

	jg	compat_sys_ustat



ENTRY(compat_sys_sigpending_wrapper)

	llgtr	%r2,%r2			# compat_old_sigset_t *

	jg	compat_sys_sigpending	# branch to system call



ENTRY(compat_sys_setrlimit_wrapper)

	llgfr	%r2,%r2			# unsigned int

	llgtr	%r3,%r3			# struct rlimit_emu31 *

	jg	compat_sys_setrlimit	# branch to system call



ENTRY(compat_sys_old_getrlimit_wrapper)

	llgfr	%r2,%r2			# unsigned int

	llgtr	%r3,%r3			# struct rlimit_emu31 *

	jg	compat_sys_old_getrlimit # branch to system call



ENTRY(compat_sys_getrlimit_wrapper)

	llgfr	%r2,%r2			# unsigned int

	llgtr	%r3,%r3			# struct rlimit_emu31 *

	jg	compat_sys_getrlimit	# branch to system call



ENTRY(compat_sys_gettimeofday_wrapper)

	llgtr	%r2,%r2			# struct timeval_emu31 *

	llgtr	%r3,%r3			# struct timezone *

	jg	compat_sys_gettimeofday	# branch to system call



ENTRY(compat_sys_settimeofday_wrapper)

	llgtr	%r2,%r2			# struct timeval_emu31 *

	llgtr	%r3,%r3			# struct timezone *

	jg	compat_sys_settimeofday	# branch to system call



ENTRY(old32_readdir_wrapper)

	llgfr	%r2,%r2			# unsigned int

	llgtr	%r3,%r3			# void *

	llgfr	%r4,%r4			# unsigned int

	jg	compat_sys_old_readdir	# branch to system call



ENTRY(compat_sys_statfs_wrapper)

	llgtr	%r2,%r2			# char *

	llgtr	%r3,%r3			# struct compat_statfs *

	jg	compat_sys_statfs	# branch to system call



ENTRY(compat_sys_fstatfs_wrapper)

	llgfr	%r2,%r2			# unsigned int

	llgtr	%r3,%r3			# struct compat_statfs *

	jg	compat_sys_fstatfs	# branch to system call



ENTRY(compat_sys_socketcall_wrapper)

	lgfr	%r2,%r2			# int

	llgtr	%r3,%r3			# u32 *

	jg	compat_sys_socketcall	# branch to system call



ENTRY(compat_sys_newstat_wrapper)

	llgtr	%r2,%r2			# char *

	llgtr	%r3,%r3			# struct stat_emu31 *

	jg	compat_sys_newstat	# branch to system call



ENTRY(compat_sys_newlstat_wrapper)

	llgtr	%r2,%r2			# char *

	llgtr	%r3,%r3			# struct stat_emu31 *

	jg	compat_sys_newlstat	# branch to system call



ENTRY(compat_sys_newfstat_wrapper)

	llgfr	%r2,%r2			# unsigned int

	llgtr	%r3,%r3			# struct stat_emu31 *

	jg	compat_sys_newfstat	# branch to system call



ENTRY(compat_sys_sysinfo_wrapper)

	llgtr	%r2,%r2			# struct sysinfo_emu31 *

	jg	compat_sys_sysinfo	# branch to system call



ENTRY(compat_sys_adjtimex_wrapper)

	llgtr	%r2,%r2			# struct compat_timex *

	jg	compat_sys_adjtimex	# branch to system call



ENTRY(sys32_getdents_wrapper)

	llgfr	%r2,%r2			# unsigned int

	llgtr	%r3,%r3			# void *

	llgfr	%r4,%r4			# unsigned int

	jg	compat_sys_getdents	# branch to system call



ENTRY(compat_sys_select_wrapper)

	lgfr	%r2,%r2			# int

	llgtr	%r3,%r3			# compat_fd_set *

	llgtr	%r4,%r4			# compat_fd_set *

	llgtr	%r5,%r5			# compat_fd_set *

	llgtr	%r6,%r6			# struct compat_timeval *

	jg	compat_sys_select	# branch to system call



ENTRY(compat_sys_readv_wrapper)

	lgfr	%r2,%r2			# int

	llgtr	%r3,%r3			# const struct compat_iovec *

	llgfr	%r4,%r4			# unsigned long

	jg	compat_sys_readv	# branch to system call



ENTRY(compat_sys_writev_wrapper)

	lgfr	%r2,%r2			# int

	llgtr	%r3,%r3			# const struct compat_iovec *

	llgfr	%r4,%r4			# unsigned long

	jg	compat_sys_writev	# 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(compat_sys_fcntl64_wrapper)

	llgfr	%r2,%r2			# unsigned int

	llgfr	%r3,%r3			# unsigned int

	llgfr	%r4,%r4			# unsigned long

	jg	compat_sys_fcntl64	# branch to system call



ENTRY(sys32_stime_wrapper)

	llgtr	%r2,%r2			# long *

	jg	compat_sys_stime	# branch to system call



ENTRY(sys32_sched_setaffinity_wrapper)

	lgfr	%r2,%r2			# int

	llgfr	%r3,%r3			# unsigned int

	llgtr	%r4,%r4			# unsigned long *

	jg	compat_sys_sched_setaffinity



ENTRY(sys32_sched_getaffinity_wrapper)

	lgfr	%r2,%r2			# int

	llgfr	%r3,%r3			# unsigned int

	llgtr	%r4,%r4			# unsigned long *

	jg	compat_sys_sched_getaffinity



ENTRY(sys32_clock_settime_wrapper)

	lgfr	%r2,%r2			# clockid_t (int)

	llgtr	%r3,%r3			# struct compat_timespec *

	jg	compat_sys_clock_settime



ENTRY(sys32_clock_gettime_wrapper)

	lgfr	%r2,%r2			# clockid_t (int)

	llgtr	%r3,%r3			# struct compat_timespec *

	jg	compat_sys_clock_gettime



ENTRY(sys32_clock_getres_wrapper)

	lgfr	%r2,%r2			# clockid_t (int)

	llgtr	%r3,%r3			# struct compat_timespec *

	jg	compat_sys_clock_getres



ENTRY(sys32_clock_nanosleep_wrapper)

	lgfr	%r2,%r2			# clockid_t (int)

	lgfr	%r3,%r3			# int

	llgtr	%r4,%r4			# struct compat_timespec *

	llgtr	%r5,%r5			# struct compat_timespec *

	jg	compat_sys_clock_nanosleep



ENTRY(sys32_timer_create_wrapper)

	lgfr	%r2,%r2			# timer_t (int)

	llgtr	%r3,%r3			# struct compat_sigevent *

	llgtr	%r4,%r4			# timer_t *

	jg	compat_sys_timer_create



ENTRY(sys32_timer_settime_wrapper)

	lgfr	%r2,%r2			# timer_t (int)

	lgfr	%r3,%r3			# int

	llgtr	%r4,%r4			# struct compat_itimerspec *

	llgtr	%r5,%r5			# struct compat_itimerspec *

	jg	compat_sys_timer_settime



ENTRY(sys32_timer_gettime_wrapper)

	lgfr	%r2,%r2			# timer_t (int)

	llgtr	%r3,%r3			# struct compat_itimerspec *

	jg	compat_sys_timer_gettime



ENTRY(sys32_io_setup_wrapper)

	llgfr	%r2,%r2			# unsigned int

	llgtr	%r3,%r3			# u32 *

	jg	compat_sys_io_setup



ENTRY(sys32_io_getevents_wrapper)

	llgfr	%r2,%r2			# (aio_context_t) u32

	lgfr	%r3,%r3			# long

	lgfr	%r4,%r4			# long

	llgtr	%r5,%r5			# struct io_event *

	llgtr	%r6,%r6			# struct compat_timespec *

	jg	compat_sys_io_getevents



ENTRY(sys32_io_submit_wrapper)

	llgfr	%r2,%r2			# (aio_context_t) u32

	lgfr	%r3,%r3			# long

	llgtr	%r4,%r4			# struct iocb **

	jg	compat_sys_io_submit



ENTRY(compat_sys_statfs64_wrapper)

	llgtr	%r2,%r2			# const char *

	llgfr	%r3,%r3			# compat_size_t

	llgtr	%r4,%r4			# struct compat_statfs64 *

	jg	compat_sys_statfs64



ENTRY(compat_sys_fstatfs64_wrapper)

	llgfr	%r2,%r2			# unsigned int fd

	llgfr	%r3,%r3			# compat_size_t

	llgtr	%r4,%r4			# struct compat_statfs64 *

	jg	compat_sys_fstatfs64



ENTRY(compat_sys_mq_open_wrapper)

	llgtr	%r2,%r2			# const char *

	lgfr	%r3,%r3			# int

	llgfr	%r4,%r4			# mode_t

	llgtr	%r5,%r5			# struct compat_mq_attr *

	jg	compat_sys_mq_open



ENTRY(compat_sys_mq_timedsend_wrapper)

	lgfr	%r2,%r2			# mqd_t

	llgtr	%r3,%r3			# const char *

	llgfr	%r4,%r4			# size_t

	llgfr	%r5,%r5			# unsigned int

	llgtr	%r6,%r6			# const struct compat_timespec *

	jg	compat_sys_mq_timedsend



ENTRY(compat_sys_mq_timedreceive_wrapper)

	lgfr	%r2,%r2			# mqd_t

	llgtr	%r3,%r3			# char *

	llgfr	%r4,%r4			# size_t

	llgtr	%r5,%r5			# unsigned int *

	llgtr	%r6,%r6			# const struct compat_timespec *

	jg	compat_sys_mq_timedreceive



ENTRY(compat_sys_mq_notify_wrapper)

	lgfr	%r2,%r2			# mqd_t

	llgtr	%r3,%r3			# struct compat_sigevent *

	jg	compat_sys_mq_notify



ENTRY(compat_sys_mq_getsetattr_wrapper)

	lgfr	%r2,%r2			# mqd_t

	llgtr	%r3,%r3			# struct compat_mq_attr *

	llgtr	%r4,%r4			# struct compat_mq_attr *

	jg	compat_sys_mq_getsetattr



ENTRY(compat_sys_kexec_load_wrapper)

	llgfr	%r2,%r2			# unsigned long

	llgfr	%r3,%r3			# unsigned long

	llgtr	%r4,%r4			# struct kexec_segment *

	llgfr	%r5,%r5			# unsigned long

	jg	compat_sys_kexec_load



ENTRY(compat_sys_futimesat_wrapper)

	llgfr	%r2,%r2			# unsigned int

	llgtr	%r3,%r3			# char *

	llgtr	%r4,%r4			# struct timeval *

	jg	compat_sys_futimesat



ENTRY(compat_sys_pselect6_wrapper)

	lgfr	%r2,%r2			# int

	llgtr	%r3,%r3			# fd_set *

	llgtr	%r4,%r4			# fd_set *

	llgtr	%r5,%r5			# fd_set *

	llgtr	%r6,%r6			# struct timespec *

	llgt	%r0,164(%r15)		# void *

	stg	%r0,160(%r15)

	jg	compat_sys_pselect6



ENTRY(compat_sys_ppoll_wrapper)

	llgtr	%r2,%r2			# struct pollfd *

	llgfr	%r3,%r3			# unsigned int

	llgtr	%r4,%r4			# struct timespec *

	llgtr	%r5,%r5			# const sigset_t *

	llgfr	%r6,%r6			# size_t

	jg	compat_sys_ppoll



ENTRY(compat_sys_utimes_wrapper)

	llgtr	%r2,%r2			# char *

	llgtr	%r3,%r3			# struct compat_timeval *

	jg	compat_sys_utimes



ENTRY(compat_sys_utimensat_wrapper)

	llgfr	%r2,%r2			# unsigned int

	llgtr	%r3,%r3			# char *

	llgtr	%r4,%r4			# struct compat_timespec *

	lgfr	%r5,%r5			# int

	jg	compat_sys_utimensat



ENTRY(compat_sys_keyctl_wrapper)

	llgfr	%r2,%r2			# u32

	llgfr	%r3,%r3			# u32

	llgfr	%r4,%r4			# u32

	llgfr	%r5,%r5			# u32

	llgfr	%r6,%r6			# u32

	jg	compat_sys_keyctl	# branch to system call



ENTRY(sys32_execve_wrapper)

	llgtr	%r2,%r2			# char *

	llgtr	%r3,%r3			# compat_uptr_t *

	llgtr	%r4,%r4			# compat_uptr_t *

	jg	compat_sys_execve	# branch to system call



ENTRY(compat_sys_clock_adjtime_wrapper)

	lgfr	%r2,%r2			# clockid_t (int)

	llgtr	%r3,%r3			# struct compat_timex __user *

	jg	compat_sys_clock_adjtime



ENTRY(compat_sys_process_vm_readv_wrapper)

	lgfr	%r2,%r2			# compat_pid_t

	llgtr	%r3,%r3			# struct compat_iovec __user *

	llgfr	%r4,%r4			# unsigned long

	llgtr	%r5,%r5			# struct compat_iovec __user *

	llgfr	%r6,%r6			# unsigned long

	llgf	%r0,164(%r15)		# unsigned long

	stg	%r0,160(%r15)

	jg	compat_sys_process_vm_readv



ENTRY(compat_sys_process_vm_writev_wrapper)

	lgfr	%r2,%r2			# compat_pid_t

	llgtr	%r3,%r3			# struct compat_iovec __user *

	llgfr	%r4,%r4			# unsigned long

	llgtr	%r5,%r5			# struct compat_iovec __user *

	llgfr	%r6,%r6			# unsigned long

	llgf	%r0,164(%r15)		# unsigned long

	stg	%r0,160(%r15)

	jg	compat_sys_process_vm_writev