[PATCH] rename the provided execve functions to kernel_execve

Some architectures provide an execve function that does not set errno, but
instead returns the result code directly.  Rename these to kernel_execve to
get the right semantics there.  Moreover, there is no reasone for any of these
architectures to still provide __KERNEL_SYSCALLS__ or _syscallN macros, so
remove these right away.

[akpm@osdl.org: build fix]
[bunk@stusta.de: build fix]
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Cc: Andi Kleen <ak@muc.de>
Acked-by: Paul Mackerras <paulus@samba.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Richard Henderson <rth@twiddle.net>
Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru>
Cc: Russell King <rmk@arm.linux.org.uk>
Cc: Ian Molton <spyro@f2s.com>
Cc: Mikael Starvik <starvik@axis.com>
Cc: David Howells <dhowells@redhat.com>
Cc: Yoshinori Sato <ysato@users.sourceforge.jp>
Cc: Hirokazu Takata <takata.hirokazu@renesas.com>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: Kyle McMartin <kyle@mcmartin.ca>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: Paul Mundt <lethal@linux-sh.org>
Cc: Kazumoto Kojima <kkojima@rr.iij4u.or.jp>
Cc: Richard Curnow <rc@rc0.org.uk>
Cc: William Lee Irwin III <wli@holomorphy.com>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Jeff Dike <jdike@addtoit.com>
Cc: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it>
Cc: Miles Bader <uclinux-v850@lsi.nec.co.jp>
Cc: Chris Zankel <chris@zankel.net>
Cc: "Luck, Tony" <tony.luck@intel.com>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Roman Zippel <zippel@linux-m68k.org>
Signed-off-by: Adrian Bunk <bunk@stusta.de>
Cc: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

9 files changed, 8 insertions, 397 deletions

diff --git a/include/asm-alpha/unistd.h b/include/asm-alpha/unistd.h
index bc6e6a9259dc..2cabbd465c0c 100644
--- a/include/asm-alpha/unistd.h
+++ b/include/asm-alpha/unistd.h
@@ -580,75 +580,6 @@ type name (type1 arg1,type2 arg2,type3 arg3,type4 arg4,type5 arg5, type6 arg6)\
 #define __ARCH_WANT_SYS_OLDUMOUNT
 #define __ARCH_WANT_SYS_SIGPENDING
 
-#ifdef __KERNEL_SYSCALLS__
-
-#include <linux/compiler.h>
-#include <linux/types.h>
-#include <linux/string.h>
-#include <linux/signal.h>
-#include <linux/syscalls.h>
-#include <asm/ptrace.h>
-
-static inline long open(const char * name, int mode, int flags)
-{
-        return sys_open(name, mode, flags);
-}
-
-static inline long dup(int fd)
-{
-        return sys_dup(fd);
-}
-
-static inline long close(int fd)
-{
-        return sys_close(fd);
-}
-
-static inline off_t lseek(int fd, off_t off, int whence)
-{
-        return sys_lseek(fd, off, whence);
-}
-
-static inline void _exit(int value)
-{
-        sys_exit(value);
-}
-
-#define exit(x) _exit(x)
-
-static inline long write(int fd, const char * buf, size_t nr)
-{
-        return sys_write(fd, buf, nr);
-}
-
-static inline long read(int fd, char * buf, size_t nr)
-{
-        return sys_read(fd, buf, nr);
-}
-
-extern int execve(char *, char **, char **);
-
-static inline long setsid(void)
-{
-        return sys_setsid();
-}
-
-static inline pid_t waitpid(int pid, int * wait_stat, int flags)
-{
-        return sys_wait4(pid, wait_stat, flags, NULL);
-}
-
-asmlinkage int sys_execve(char *ufilename, char **argv, char **envp,
-                        unsigned long a3, unsigned long a4, unsigned long a5,
-                        struct pt_regs regs);
-asmlinkage long sys_rt_sigaction(int sig,
-                                const struct sigaction __user *act,
-                                struct sigaction __user *oact,
-                                size_t sigsetsize,
-                                void *restorer);
-
-#endif /* __KERNEL_SYSCALLS__ */
-
 /* "Conditional" syscalls.  What we want is
 
         __attribute__((weak,alias("sys_ni_syscall")))
diff --git a/include/asm-arm/unistd.h b/include/asm-arm/unistd.h
index 2ab4078334bf..14a87eec5a2d 100644
--- a/include/asm-arm/unistd.h
+++ b/include/asm-arm/unistd.h
@@ -549,30 +549,6 @@ type name(type1 arg1, type2 arg2, type3 arg3, type4 arg4, type5 arg5, type6 arg6
 #define __ARCH_WANT_SYS_SOCKETCALL
 #endif
 
-#ifdef __KERNEL_SYSCALLS__
-
-#include <linux/compiler.h>
-#include <linux/types.h>
-#include <linux/syscalls.h>
-
-extern long execve(const char *file, char **argv, char **envp);
-
-struct pt_regs;
-asmlinkage int sys_execve(char *filenamei, char **argv, char **envp,
-                        struct pt_regs *regs);
-asmlinkage int sys_clone(unsigned long clone_flags, unsigned long newsp,
-                        struct pt_regs *regs);
-asmlinkage int sys_fork(struct pt_regs *regs);
-asmlinkage int sys_vfork(struct pt_regs *regs);
-asmlinkage int sys_pipe(unsigned long *fildes);
-struct sigaction;
-asmlinkage long sys_rt_sigaction(int sig,
-                                const struct sigaction __user *act,
-                                struct sigaction __user *oact,
-                                size_t sigsetsize);
-
-#endif /* __KERNEL_SYSCALLS__ */
-
 /*
  * "Conditional" syscalls
  *
diff --git a/include/asm-arm26/unistd.h b/include/asm-arm26/unistd.h
index c6d2436c9d34..25a5eead85be 100644
--- a/include/asm-arm26/unistd.h
+++ b/include/asm-arm26/unistd.h
@@ -464,30 +464,6 @@ type name(type1 arg1, type2 arg2, type3 arg3, type4 arg4, type5 arg5, type6 arg6
 #define __ARCH_WANT_SYS_SIGPROCMASK
 #define __ARCH_WANT_SYS_RT_SIGACTION
 
-#ifdef __KERNEL_SYSCALLS__
-
-#include <linux/compiler.h>
-#include <linux/types.h>
-#include <linux/syscalls.h>
-
-extern long execve(const char *file, char **argv, char **envp);
-
-struct pt_regs;
-asmlinkage int sys_execve(char *filenamei, char **argv, char **envp,
-                        struct pt_regs *regs);
-asmlinkage int sys_clone(unsigned long clone_flags, unsigned long newsp,
-                        struct pt_regs *regs);
-asmlinkage int sys_fork(struct pt_regs *regs);
-asmlinkage int sys_vfork(struct pt_regs *regs);
-asmlinkage int sys_pipe(unsigned long *fildes);
-struct sigaction;
-asmlinkage long sys_rt_sigaction(int sig,
-                                const struct sigaction __user *act,
-                                struct sigaction __user *oact,
-                                size_t sigsetsize);
-
-#endif /* __KERNEL_SYSCALLS__ */
-
 /*
  * "Conditional" syscalls
  *
diff --git a/include/asm-ia64/unistd.h b/include/asm-ia64/unistd.h
index bb0eb727dcd0..53c5c0ee122c 100644
--- a/include/asm-ia64/unistd.h
+++ b/include/asm-ia64/unistd.h
@@ -319,78 +319,6 @@
 
 extern long __ia64_syscall (long a0, long a1, long a2, long a3, long a4, long nr);
 
-#ifdef __KERNEL_SYSCALLS__
-
-#include <linux/compiler.h>
-#include <linux/string.h>
-#include <linux/signal.h>
-#include <asm/ptrace.h>
-#include <linux/stringify.h>
-#include <linux/syscalls.h>
-
-static inline long
-open (const char * name, int mode, int flags)
-{
-        return sys_open(name, mode, flags);
-}
-
-static inline long
-dup (int fd)
-{
-        return sys_dup(fd);
-}
-
-static inline long
-close (int fd)
-{
-        return sys_close(fd);
-}
-
-static inline off_t
-lseek (int fd, off_t off, int whence)
-{
-        return sys_lseek(fd, off, whence);
-}
-
-static inline void
-_exit (int value)
-{
-        sys_exit(value);
-}
-
-#define exit(x) _exit(x)
-
-static inline long
-write (int fd, const char * buf, size_t nr)
-{
-        return sys_write(fd, buf, nr);
-}
-
-static inline long
-read (int fd, char * buf, size_t nr)
-{
-        return sys_read(fd, buf, nr);
-}
-
-
-static inline long
-setsid (void)
-{
-        return sys_setsid();
-}
-
-static inline pid_t
-waitpid (int pid, int * wait_stat, int flags)
-{
-        return sys_wait4(pid, wait_stat, flags, NULL);
-}
-
-
-extern int execve (const char *filename, char *const av[], char *const ep[]);
-extern pid_t clone (unsigned long flags, void *sp);
-
-#endif /* __KERNEL_SYSCALLS__ */
-
 asmlinkage unsigned long sys_mmap(
                                 unsigned long addr, unsigned long len,
                                 int prot, int flags,
diff --git a/include/asm-parisc/unistd.h b/include/asm-parisc/unistd.h
index 27bcfad1c3e3..53b0f5d290e4 100644
--- a/include/asm-parisc/unistd.h
+++ b/include/asm-parisc/unistd.h
@@ -952,92 +952,6 @@ type name(type1 arg1, type2 arg2, type3 arg3, type4 arg4, type5 arg5)	\
 #define __ARCH_WANT_SYS_SIGPROCMASK
 #define __ARCH_WANT_SYS_RT_SIGACTION
 
-/* mmap & mmap2 take 6 arguments */
-#define _syscall6(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4,type5,arg5,type6,arg6) \
-type name(type1 arg1, type2 arg2, type3 arg3, type4 arg4, type5 arg5, type6 arg6) \
-{                                                                               \
-    return K_INLINE_SYSCALL(name, 6, arg1, arg2, arg3, arg4, arg5, arg6);       \
-}
-
-#ifdef __KERNEL_SYSCALLS__
-
-#include <asm/current.h>
-#include <linux/compiler.h>
-#include <linux/types.h>
-#include <linux/syscalls.h>
-
-static inline pid_t setsid(void)
-{
-        return sys_setsid();
-}
-
-static inline int write(int fd, const char *buf, off_t count)
-{
-        return sys_write(fd, buf, count);
-}
-
-static inline int read(int fd, char *buf, off_t count)
-{
-        return sys_read(fd, buf, count);
-}
-
-static inline off_t lseek(int fd, off_t offset, int count)
-{
-        return sys_lseek(fd, offset, count);
-}
-
-static inline int dup(int fd)
-{
-        return sys_dup(fd);
-}
-
-static inline int execve(char *filename, char * argv [],
-        char * envp[])
-{
-        extern int __execve(char *, char **, char **, struct task_struct *);
-        return __execve(filename, argv, envp, current);
-}
-
-static inline int open(const char *file, int flag, int mode)
-{
-        return sys_open(file, flag, mode);
-}
-
-static inline int close(int fd)
-{
-        return sys_close(fd);
-}
-
-static inline void _exit(int exitcode)
-{
-        sys_exit(exitcode);
-}
-
-static inline pid_t waitpid(pid_t pid, int *wait_stat, int options)
-{
-        return sys_wait4(pid, wait_stat, options, NULL);
-}
-
-asmlinkage unsigned long sys_mmap(unsigned long addr, unsigned long len,
-                                unsigned long prot, unsigned long flags,
-                                unsigned long fd, unsigned long offset);
-asmlinkage unsigned long sys_mmap2(unsigned long addr, unsigned long len,
-                                unsigned long prot, unsigned long flags,
-                                unsigned long fd, unsigned long pgoff);
-struct pt_regs;
-asmlinkage int sys_execve(struct pt_regs *regs);
-int sys_clone(unsigned long clone_flags, unsigned long usp,
-                struct pt_regs *regs);
-int sys_vfork(struct pt_regs *regs);
-int sys_pipe(int *fildes);
-struct sigaction;
-asmlinkage long sys_rt_sigaction(int sig,
-                                const struct sigaction __user *act,
-                                struct sigaction __user *oact,
-                                size_t sigsetsize);
-
-#endif  /* __KERNEL_SYSCALLS__ */
-
 #endif /* __ASSEMBLY__ */
 
 #undef STR
diff --git a/include/asm-powerpc/unistd.h b/include/asm-powerpc/unistd.h
index eb66eae6616f..464a48cce7f5 100644
--- a/include/asm-powerpc/unistd.h
+++ b/include/asm-powerpc/unistd.h
@@ -479,13 +479,6 @@ type name(type1 arg1, type2 arg2, type3 arg3, type4 arg4, type5 arg5, type6 arg6
 #endif
 
 /*
- * System call prototypes.
- */
-#ifdef __KERNEL_SYSCALLS__
-extern int execve(const char *file, char **argv, char **envp);
-#endif /* __KERNEL_SYSCALLS__ */
-
-/*
  * "Conditional" syscalls
  *
  * What we want is __attribute__((weak,alias("sys_ni_syscall"))),
diff --git a/include/asm-um/unistd.h b/include/asm-um/unistd.h
index afccfcaa9ea9..732c83f04c3d 100644
--- a/include/asm-um/unistd.h
+++ b/include/asm-um/unistd.h
@@ -37,34 +37,6 @@ extern int um_execve(const char *file, char *const argv[], char *const env[]);
 #define __ARCH_WANT_SYS_RT_SIGSUSPEND
 #endif
 
-#ifdef __KERNEL_SYSCALLS__
-
-#include <linux/compiler.h>
-#include <linux/types.h>
-
-static inline int execve(const char *filename, char *const argv[],
-                         char *const envp[])
-{
-        mm_segment_t fs;
-        int ret;
-
-        fs = get_fs();
-        set_fs(KERNEL_DS);
-        ret = um_execve(filename, argv, envp);
-        set_fs(fs);
-
-        if (ret >= 0)
-                return ret;
-
-        errno = -(long)ret;
-        return -1;
-}
-
-int sys_execve(char *file, char **argv, char **env);
-
-#endif /* __KERNEL_SYSCALLS__ */
-
-#undef __KERNEL_SYSCALLS__
 #include "asm/arch/unistd.h"
 
 #endif /* _UM_UNISTD_H_*/
diff --git a/include/asm-x86_64/unistd.h b/include/asm-x86_64/unistd.h
index 6137146516d3..777288eb7e75 100644
--- a/include/asm-x86_64/unistd.h
+++ b/include/asm-x86_64/unistd.h
@@ -620,10 +620,11 @@ __SYSCALL(__NR_vmsplice, sys_vmsplice)
 #define __NR_move_pages         279
 __SYSCALL(__NR_move_pages, sys_move_pages)
 
-#ifdef __KERNEL__
-
 #define __NR_syscall_max __NR_move_pages
+
+#ifdef __KERNEL__
 #include <linux/err.h>
+#endif
 
 #ifndef __NO_STUBS
 
@@ -663,8 +664,6 @@ do { \
 #define __ARCH_WANT_SYS_TIME
 #define __ARCH_WANT_COMPAT_SYS_TIME
 
-#ifndef __KERNEL_SYSCALLS__
-
 #define __syscall "syscall"
 
 #define _syscall0(type,name) \
@@ -746,83 +745,7 @@ __asm__ volatile ("movq %5,%%r10 ; movq %6,%%r8 ; movq %7,%%r9 ; " __syscall \
 __syscall_return(type,__res); \
 }
 
-#else /* __KERNEL_SYSCALLS__ */
-
-#include <linux/syscalls.h>
-#include <asm/ptrace.h>
-
-/*
- * we need this inline - forking from kernel space will result
- * in NO COPY ON WRITE (!!!), until an execve is executed. This
- * is no problem, but for the stack. This is handled by not letting
- * main() use the stack at all after fork(). Thus, no function
- * calls - which means inline code for fork too, as otherwise we
- * would use the stack upon exit from 'fork()'.
- *
- * Actually only pause and fork are needed inline, so that there
- * won't be any messing with the stack from main(), but we define
- * some others too.
- */
-#define __NR__exit __NR_exit
-
-static inline pid_t setsid(void)
-{
-        return sys_setsid();
-}
-
-static inline ssize_t write(unsigned int fd, char * buf, size_t count)
-{
-        return sys_write(fd, buf, count);
-}
-
-static inline ssize_t read(unsigned int fd, char * buf, size_t count)
-{
-        return sys_read(fd, buf, count);
-}
-
-static inline off_t lseek(unsigned int fd, off_t offset, unsigned int origin)
-{
-        return sys_lseek(fd, offset, origin);
-}
-
-static inline long dup(unsigned int fd)
-{
-        return sys_dup(fd);
-}
-
-/* implemented in asm in arch/x86_64/kernel/entry.S */
-extern int execve(const char *, char * const *, char * const *);
-
-static inline long open(const char * filename, int flags, int mode)
-{
-        return sys_open(filename, flags, mode);
-}
-
-static inline long close(unsigned int fd)
-{
-        return sys_close(fd);
-}
-
-static inline pid_t waitpid(int pid, int * wait_stat, int flags)
-{
-        return sys_wait4(pid, wait_stat, flags, NULL);
-}
-
-extern long sys_mmap(unsigned long addr, unsigned long len,
-                        unsigned long prot, unsigned long flags,
-                        unsigned long fd, unsigned long off);
-
-extern int sys_modify_ldt(int func, void *ptr, unsigned long bytecount);
-
-asmlinkage long sys_execve(char *name, char **argv, char **envp,
-                        struct pt_regs regs);
-asmlinkage long sys_clone(unsigned long clone_flags, unsigned long newsp,
-                        void *parent_tid, void *child_tid,
-                        struct pt_regs regs);
-asmlinkage long sys_fork(struct pt_regs regs);
-asmlinkage long sys_vfork(struct pt_regs regs);
-asmlinkage long sys_pipe(int *fildes);
-
+#ifdef __KERNEL__
 #ifndef __ASSEMBLY__
 
 #include <linux/linkage.h>
@@ -839,8 +762,8 @@ asmlinkage long sys_rt_sigaction(int sig,
                                 size_t sigsetsize);
 
 #endif  /* __ASSEMBLY__ */
-
-#endif /* __KERNEL_SYSCALLS__ */
+#endif  /* __KERNEL__ */
+#endif  /* __NO_STUBS */
 
 /*
  * "Conditional" syscalls
@@ -850,8 +773,4 @@ asmlinkage long sys_rt_sigaction(int sig,
  */
 #define cond_syscall(x) asm(".weak\t" #x "\n\t.set\t" #x ",sys_ni_syscall")
 
-#endif /* __NO_STUBS */
-
-#endif /* __KERNEL__ */
-
 #endif /* _ASM_X86_64_UNISTD_H_ */
diff --git a/include/linux/syscalls.h b/include/linux/syscalls.h
index 2d1c3d5c83ac..3efcfc7e9c6c 100644
--- a/include/linux/syscalls.h
+++ b/include/linux/syscalls.h
@@ -599,4 +599,6 @@ asmlinkage long sys_set_robust_list(struct robust_list_head __user *head,
                                     size_t len);
 asmlinkage long sys_getcpu(unsigned __user *cpu, unsigned __user *node, struct getcpu_cache __user *cache);
 
+int kernel_execve(const char *filename, char *const argv[], char *const envp[]);
+
 #endif