diff options
author | Arnd Bergmann <arnd@arndb.de> | 2006-10-02 09:18:31 (GMT) |
---|---|---|
committer | Linus Torvalds <torvalds@g5.osdl.org> | 2006-10-02 14:57:23 (GMT) |
commit | 3db03b4afb3ecd66a0399b8ba57742ca953b0ecd (patch) | |
tree | fe0bd5c3663c58583f0181e2673d569c2df664e7 | |
parent | 6760856791c6e527da678021ee6a67896549d4da (diff) | |
download | linux-3db03b4afb3ecd66a0399b8ba57742ca953b0ecd.tar.xz |
[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>
-rw-r--r-- | arch/alpha/kernel/alpha_ksyms.c | 3 | ||||
-rw-r--r-- | arch/alpha/kernel/entry.S | 10 | ||||
-rw-r--r-- | arch/arm/kernel/sys_arm.c | 4 | ||||
-rw-r--r-- | arch/arm26/kernel/sys_arm.c | 4 | ||||
-rw-r--r-- | arch/ia64/kernel/entry.S | 4 | ||||
-rw-r--r-- | arch/parisc/kernel/process.c | 9 | ||||
-rw-r--r-- | arch/powerpc/kernel/misc_32.S | 2 | ||||
-rw-r--r-- | arch/powerpc/kernel/misc_64.S | 2 | ||||
-rw-r--r-- | arch/um/kernel/syscall.c | 13 | ||||
-rw-r--r-- | arch/x86_64/kernel/entry.S | 4 | ||||
-rw-r--r-- | drivers/sbus/char/bbc_envctrl.c | 5 | ||||
-rw-r--r-- | drivers/sbus/char/envctrl.c | 7 | ||||
-rw-r--r-- | include/asm-alpha/unistd.h | 69 | ||||
-rw-r--r-- | include/asm-arm/unistd.h | 24 | ||||
-rw-r--r-- | include/asm-arm26/unistd.h | 24 | ||||
-rw-r--r-- | include/asm-ia64/unistd.h | 72 | ||||
-rw-r--r-- | include/asm-parisc/unistd.h | 86 | ||||
-rw-r--r-- | include/asm-powerpc/unistd.h | 7 | ||||
-rw-r--r-- | include/asm-um/unistd.h | 28 | ||||
-rw-r--r-- | include/asm-x86_64/unistd.h | 93 | ||||
-rw-r--r-- | include/linux/syscalls.h | 2 |
21 files changed, 49 insertions, 423 deletions
diff --git a/arch/alpha/kernel/alpha_ksyms.c b/arch/alpha/kernel/alpha_ksyms.c index f042cc42..dbe327d 100644 --- a/arch/alpha/kernel/alpha_ksyms.c +++ b/arch/alpha/kernel/alpha_ksyms.c @@ -36,7 +36,6 @@ #include <asm/cacheflush.h> #include <asm/vga.h> -#define __KERNEL_SYSCALLS__ #include <asm/unistd.h> extern struct hwrpb_struct *hwrpb; @@ -116,7 +115,7 @@ EXPORT_SYMBOL(sys_dup); EXPORT_SYMBOL(sys_exit); EXPORT_SYMBOL(sys_write); EXPORT_SYMBOL(sys_lseek); -EXPORT_SYMBOL(execve); +EXPORT_SYMBOL(kernel_execve); EXPORT_SYMBOL(sys_setsid); EXPORT_SYMBOL(sys_wait4); diff --git a/arch/alpha/kernel/entry.S b/arch/alpha/kernel/entry.S index 01ecd09..c95e95e 100644 --- a/arch/alpha/kernel/entry.S +++ b/arch/alpha/kernel/entry.S @@ -655,12 +655,12 @@ kernel_thread: .end kernel_thread /* - * execve(path, argv, envp) + * kernel_execve(path, argv, envp) */ .align 4 - .globl execve - .ent execve -execve: + .globl kernel_execve + .ent kernel_execve +kernel_execve: /* We can be called from a module. */ ldgp $gp, 0($27) lda $sp, -(32+SIZEOF_PT_REGS+8)($sp) @@ -704,7 +704,7 @@ execve: 1: lda $sp, 32+SIZEOF_PT_REGS+8($sp) ret -.end execve +.end kernel_execve /* diff --git a/arch/arm/kernel/sys_arm.c b/arch/arm/kernel/sys_arm.c index 8170af4..00c18d3 100644 --- a/arch/arm/kernel/sys_arm.c +++ b/arch/arm/kernel/sys_arm.c @@ -279,7 +279,7 @@ out: return error; } -long execve(const char *filename, char **argv, char **envp) +int kernel_execve(const char *filename, char *const argv[], char *const envp[]) { struct pt_regs regs; int ret; @@ -317,7 +317,7 @@ long execve(const char *filename, char **argv, char **envp) out: return ret; } -EXPORT_SYMBOL(execve); +EXPORT_SYMBOL(kernel_execve); /* * Since loff_t is a 64 bit type we avoid a lot of ABI hastle diff --git a/arch/arm26/kernel/sys_arm.c b/arch/arm26/kernel/sys_arm.c index 8545789..dc05aba 100644 --- a/arch/arm26/kernel/sys_arm.c +++ b/arch/arm26/kernel/sys_arm.c @@ -283,7 +283,7 @@ out: } /* FIXME - see if this is correct for arm26 */ -long execve(const char *filename, char **argv, char **envp) +int kernel_execve(const char *filename, char *const argv[], char *const envp[]) { struct pt_regs regs; int ret; @@ -320,4 +320,4 @@ long execve(const char *filename, char **argv, char **envp) return ret; } -EXPORT_SYMBOL(execve); +EXPORT_SYMBOL(kernel_execve); diff --git a/arch/ia64/kernel/entry.S b/arch/ia64/kernel/entry.S index 12701cf..e5b1be5 100644 --- a/arch/ia64/kernel/entry.S +++ b/arch/ia64/kernel/entry.S @@ -492,11 +492,11 @@ GLOBAL_ENTRY(prefetch_stack) br.ret.sptk.many rp END(prefetch_stack) -GLOBAL_ENTRY(execve) +GLOBAL_ENTRY(kernel_execve) mov r15=__NR_execve // put syscall number in place break __BREAK_SYSCALL br.ret.sptk.many rp -END(execve) +END(kernel_execve) GLOBAL_ENTRY(clone) mov r15=__NR_clone // put syscall number in place diff --git a/arch/parisc/kernel/process.c b/arch/parisc/kernel/process.c index 0b485ef..2f9f9df 100644 --- a/arch/parisc/kernel/process.c +++ b/arch/parisc/kernel/process.c @@ -368,7 +368,14 @@ out: return error; } -unsigned long +extern int __execve(const char *filename, char *const argv[], + char *const envp[], struct task_struct *task); +int kernel_execve(const char *filename, char *const argv[], char *const envp[]) +{ + return __execve(filename, argv, envp, current); +} + +unsigned long get_wchan(struct task_struct *p) { struct unwind_frame_info info; diff --git a/arch/powerpc/kernel/misc_32.S b/arch/powerpc/kernel/misc_32.S index 58758d8..88fd73f 100644 --- a/arch/powerpc/kernel/misc_32.S +++ b/arch/powerpc/kernel/misc_32.S @@ -843,7 +843,7 @@ _GLOBAL(kernel_thread) addi r1,r1,16 blr -_GLOBAL(execve) +_GLOBAL(kernel_execve) li r0,__NR_execve sc bnslr diff --git a/arch/powerpc/kernel/misc_64.S b/arch/powerpc/kernel/misc_64.S index e3ed21c..9c54ecc 100644 --- a/arch/powerpc/kernel/misc_64.S +++ b/arch/powerpc/kernel/misc_64.S @@ -556,7 +556,7 @@ _GLOBAL(giveup_altivec) #endif /* CONFIG_ALTIVEC */ -_GLOBAL(execve) +_GLOBAL(kernel_execve) li r0,__NR_execve sc bnslr diff --git a/arch/um/kernel/syscall.c b/arch/um/kernel/syscall.c index abf14aa..f5ed862 100644 --- a/arch/um/kernel/syscall.c +++ b/arch/um/kernel/syscall.c @@ -164,3 +164,16 @@ int next_syscall_index(int limit) spin_unlock(&syscall_lock); return(ret); } + +int kernel_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); + + return ret; +} diff --git a/arch/x86_64/kernel/entry.S b/arch/x86_64/kernel/entry.S index 2802524..b8285cf 100644 --- a/arch/x86_64/kernel/entry.S +++ b/arch/x86_64/kernel/entry.S @@ -1023,7 +1023,7 @@ ENDPROC(child_rip) * do_sys_execve asm fallback arguments: * rdi: name, rsi: argv, rdx: envp, fake frame on the stack */ -ENTRY(execve) +ENTRY(kernel_execve) CFI_STARTPROC FAKE_STACK_FRAME $0 SAVE_ALL @@ -1036,7 +1036,7 @@ ENTRY(execve) UNFAKE_STACK_FRAME ret CFI_ENDPROC -ENDPROC(execve) +ENDPROC(kernel_execve) KPROBE_ENTRY(page_fault) errorentry do_page_fault diff --git a/drivers/sbus/char/bbc_envctrl.c b/drivers/sbus/char/bbc_envctrl.c index 1cc706e..d27e4f6 100644 --- a/drivers/sbus/char/bbc_envctrl.c +++ b/drivers/sbus/char/bbc_envctrl.c @@ -4,9 +4,6 @@ * Copyright (C) 2001 David S. Miller (davem@redhat.com) */ -#define __KERNEL_SYSCALLS__ -static int errno; - #include <linux/kernel.h> #include <linux/kthread.h> #include <linux/sched.h> @@ -200,7 +197,7 @@ static void do_envctrl_shutdown(struct bbc_cpu_temperature *tp) printk(KERN_CRIT "kenvctrld: Shutting down the system now.\n"); shutting_down = 1; - if (execve("/sbin/shutdown", argv, envp) < 0) + if (kernel_execve("/sbin/shutdown", argv, envp) < 0) printk(KERN_CRIT "envctrl: shutdown execution failed\n"); } diff --git a/drivers/sbus/char/envctrl.c b/drivers/sbus/char/envctrl.c index 063e676..728a133 100644 --- a/drivers/sbus/char/envctrl.c +++ b/drivers/sbus/char/envctrl.c @@ -19,9 +19,6 @@ * Daniele Bellucci <bellucda@tiscali.it> */ -#define __KERNEL_SYSCALLS__ -static int errno; - #include <linux/module.h> #include <linux/sched.h> #include <linux/kthread.h> @@ -976,13 +973,15 @@ static void envctrl_do_shutdown(void) "HOME=/", "TERM=linux", "PATH=/sbin:/usr/sbin:/bin:/usr/bin", NULL }; char *argv[] = { "/sbin/shutdown", "-h", "now", NULL }; + int ret; if (inprog != 0) return; inprog = 1; printk(KERN_CRIT "kenvctrld: WARNING: Shutting down the system now.\n"); - if (0 > execve("/sbin/shutdown", argv, envp)) { + ret = kernel_execve("/sbin/shutdown", argv, envp); + if (ret < 0) { printk(KERN_CRIT "kenvctrld: WARNING: system shutdown failed!\n"); inprog = 0; /* unlikely to succeed, but we could try again */ } diff --git a/include/asm-alpha/unistd.h b/include/asm-alpha/unistd.h index bc6e6a9..2cabbd4 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 2ab4078..14a87ee 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 c6d2436..25a5eea 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 bb0eb72..53c5c0e 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 27bcfad..53b0f5d 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 eb66eae..464a48c 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 afccfca..732c83f 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 6137146..777288e 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 2d1c3d5c..3efcfc7 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 |