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Message-Id: <201006071254.o57CsAwG002729@farm-0002.internal.tilera.com>
Date: Mon, 7 Jun 2010 08:48:13 -0400
From: Chris Metcalf <cmetcalf@...era.com>
To: Stephen Rothwell <sfr@...b.auug.org.au>
Cc: linux-next@...r.kernel.org, linux-kernel@...r.kernel.org,
"David S. Miller" <davem@...emloft.net>,
Arnd Bergmann <arnd@...db.de>
Subject: [PATCH] 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>.
Signed-off-by: Chris Metcalf <cmetcalf@...era.com>
---
arch/tile/include/asm/syscalls.h | 22 +---------------------
arch/tile/kernel/process.c | 2 +-
arch/tile/kernel/signal.c | 4 ++--
arch/tile/kernel/sys.c | 2 +-
include/linux/syscalls.h | 4 ----
5 files changed, 5 insertions(+), 29 deletions(-)
diff --git a/arch/tile/include/asm/syscalls.h b/arch/tile/include/asm/syscalls.h
index e1be54d..9f2b8e2 100644
--- a/arch/tile/include/asm/syscalls.h
+++ b/arch/tile/include/asm/syscalls.h
@@ -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 */
diff --git a/arch/tile/kernel/process.c b/arch/tile/kernel/process.c
index 824f230..c70ff14 100644
--- a/arch/tile/kernel/process.c
+++ b/arch/tile/kernel/process.c
@@ -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)
diff --git a/arch/tile/kernel/signal.c b/arch/tile/kernel/signal.c
index 7ea85eb..45835cf 100644
--- a/arch/tile/kernel/signal.c
+++ b/arch/tile/kernel/signal.c
@@ -43,8 +43,8 @@
/* 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,
- stack_t __user *uoss, struct pt_regs *regs)
+long _sys_sigaltstack(const stack_t __user *uss,
+ stack_t __user *uoss, struct pt_regs *regs)
{
return do_sigaltstack(uss, uoss, regs->sp);
}
diff --git a/arch/tile/kernel/sys.c b/arch/tile/kernel/sys.c
index a3d982b..0427978 100644
--- a/arch/tile/kernel/sys.c
+++ b/arch/tile/kernel/sys.c
@@ -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;
diff --git a/include/linux/syscalls.h b/include/linux/syscalls.h
index 1e3cd5f..7f614ce 100644
--- a/include/linux/syscalls.h
+++ b/include/linux/syscalls.h
@@ -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,
--
1.6.5.2
--
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