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Commit 139ef32b authored by Chris Metcalf's avatar Chris Metcalf
Browse files

Revert adding some arch-specific signal syscalls to <linux/syscalls.h>. 



It turns out there is some variance on the calling conventions for
these syscalls, and <asm-generic/syscalls.h> is already the mechanism
used to handle this.  Switch arch/tile over to using that mechanism and
tweak the calling conventions for a couple of tile syscalls to match
<asm-generic/syscalls.h>.

Acked-by: default avatarArnd Bergmann <arnd@arndb.de>
Signed-off-by: default avatarChris Metcalf <cmetcalf@tilera.com>
parent cc44826a

arch/tile/include/asm/syscalls.h

+1 −21
Original line number Diff line number Diff line
@@ -22,21 +22,7 @@ 
#include <linux/linkage.h>

#include <linux/signal.h>

#include <linux/types.h>



/* kernel/process.c */

int sys_fork(struct pt_regs *);

int sys_vfork(struct pt_regs *);

int sys_clone(unsigned long clone_flags, unsigned long newsp,

	      int __user *parent_tidptr, int __user *child_tidptr,

	      struct pt_regs *);

int sys_execve(char __user *path, char __user *__user *argv,

	       char __user *__user *envp, struct pt_regs *);



/* kernel/signal.c */

int sys_sigaltstack(const stack_t __user *, stack_t __user *,

		    struct pt_regs *);

long sys_rt_sigreturn(struct pt_regs *);

int sys_raise_fpe(int code, unsigned long addr, struct pt_regs*);

#include <asm-generic/syscalls.h>



/* kernel/sys.c */

ssize_t sys32_readahead(int fd, u32 offset_lo, u32 offset_hi, u32 count);
@@ -45,12 +31,6 @@ long sys32_fadvise64(int fd, u32 offset_lo, u32 offset_hi, 
int sys32_fadvise64_64(int fd, u32 offset_lo, u32 offset_hi,

		       u32 len_lo, u32 len_hi, int advice);

long sys_flush_cache(void);

long sys_mmap(unsigned long addr, unsigned long len,

	      unsigned long prot, unsigned long flags,

	      unsigned long fd, unsigned long offset);

long sys_mmap2(unsigned long addr, unsigned long len,

	       unsigned long prot, unsigned long flags,

	       unsigned long fd, unsigned long offset);



#ifndef __tilegx__

/* mm/fault.c */

arch/tile/kernel/process.c

+1 −1
Original line number Diff line number Diff line
@@ -502,7 +502,7 @@ int _sys_fork(struct pt_regs *regs) 
}



int _sys_clone(unsigned long clone_flags, unsigned long newsp,

	       int __user *parent_tidptr, int __user *child_tidptr,

	       void __user *parent_tidptr, void __user *child_tidptr,

	       struct pt_regs *regs)

{

	if (!newsp)

arch/tile/kernel/signal.c

+2 −2
Original line number Diff line number Diff line
@@ -43,7 +43,7 @@ 
/* Caller before callee in this file; other callee is in assembler */

void do_signal(struct pt_regs *regs);



int _sys_sigaltstack(const stack_t __user *uss,

long _sys_sigaltstack(const stack_t __user *uss,

                      stack_t __user *uoss, struct pt_regs *regs)

{

	return do_sigaltstack(uss, uoss, regs->sp);

arch/tile/kernel/sys.c

+1 −1
Original line number Diff line number Diff line
@@ -95,7 +95,7 @@ SYSCALL_DEFINE6(mmap2, unsigned long, addr, unsigned long, len, 
 */

SYSCALL_DEFINE6(mmap, unsigned long, addr, unsigned long, len,

		unsigned long, prot, unsigned long, flags,

		unsigned long, fd, unsigned long, offset)

		unsigned long, fd, off_t, offset)

{

	if (offset & ((1 << PAGE_SHIFT) - 1))

		return -EINVAL;

include/linux/syscalls.h

+0 −4
Original line number Diff line number Diff line
@@ -364,13 +364,9 @@ asmlinkage long sys_init_module(void __user *umod, unsigned long len, 
asmlinkage long sys_delete_module(const char __user *name_user,

				unsigned int flags);



asmlinkage long sys_rt_sigaction(int sig, const struct sigaction __user *act,

				 struct sigaction __user *oact,

				 size_t sigsetsize);

asmlinkage long sys_rt_sigprocmask(int how, sigset_t __user *set,

				sigset_t __user *oset, size_t sigsetsize);

asmlinkage long sys_rt_sigpending(sigset_t __user *set, size_t sigsetsize);

asmlinkage long sys_rt_sigsuspend(sigset_t __user *unewset, size_t sigsetsize);

asmlinkage long sys_rt_sigtimedwait(const sigset_t __user *uthese,

				siginfo_t __user *uinfo,

				const struct timespec __user *uts,