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-rw-r--r--arch/sparc64/kernel/power.c5
-rw-r--r--init/do_mounts_initrd.c3
-rw-r--r--init/main.c4
-rw-r--r--kernel/kmod.c5
-rw-r--r--lib/Makefile2
-rw-r--r--lib/execve.c23
6 files changed, 31 insertions, 11 deletions
diff --git a/arch/sparc64/kernel/power.c b/arch/sparc64/kernel/power.c
index e55466c77b6..0b9c70627ce 100644
--- a/arch/sparc64/kernel/power.c
+++ b/arch/sparc64/kernel/power.c
@@ -4,8 +4,6 @@
* Copyright (C) 1999 David S. Miller (davem@redhat.com)
*/
-#define __KERNEL_SYSCALLS__
-
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/init.h>
@@ -14,6 +12,7 @@
#include <linux/delay.h>
#include <linux/interrupt.h>
#include <linux/pm.h>
+#include <linux/syscalls.h>
#include <asm/system.h>
#include <asm/auxio.h>
@@ -98,7 +97,7 @@ again:
/* Ok, down we go... */
button_pressed = 0;
- if (execve("/sbin/shutdown", argv, envp) < 0) {
+ if (kernel_execve("/sbin/shutdown", argv, envp) < 0) {
printk("powerd: shutdown execution failed\n");
add_wait_queue(&powerd_wait, &wait);
goto again;
diff --git a/init/do_mounts_initrd.c b/init/do_mounts_initrd.c
index a06f037fa00..919a80cb322 100644
--- a/init/do_mounts_initrd.c
+++ b/init/do_mounts_initrd.c
@@ -1,4 +1,3 @@
-#define __KERNEL_SYSCALLS__
#include <linux/unistd.h>
#include <linux/kernel.h>
#include <linux/fs.h>
@@ -35,7 +34,7 @@ static int __init do_linuxrc(void * shell)
(void) sys_open("/dev/console",O_RDWR,0);
(void) sys_dup(0);
(void) sys_dup(0);
- return execve(shell, argv, envp_init);
+ return kernel_execve(shell, argv, envp_init);
}
static void __init handle_initrd(void)
diff --git a/init/main.c b/init/main.c
index 0766e69712b..a49b00235bd 100644
--- a/init/main.c
+++ b/init/main.c
@@ -9,8 +9,6 @@
* Simplified starting of init: Michael A. Griffith <grif@acm.org>
*/
-#define __KERNEL_SYSCALLS__
-
#include <linux/types.h>
#include <linux/module.h>
#include <linux/proc_fs.h>
@@ -703,7 +701,7 @@ static void do_pre_smp_initcalls(void)
static void run_init_process(char *init_filename)
{
argv_init[0] = init_filename;
- execve(init_filename, argv_init, envp_init);
+ kernel_execve(init_filename, argv_init, envp_init);
}
static int init(void * unused)
diff --git a/kernel/kmod.c b/kernel/kmod.c
index f8121b95183..bb4e29d924e 100644
--- a/kernel/kmod.c
+++ b/kernel/kmod.c
@@ -18,8 +18,6 @@
call_usermodehelper wait flag, and remove exec_usermodehelper.
Rusty Russell <rusty@rustcorp.com.au> Jan 2003
*/
-#define __KERNEL_SYSCALLS__
-
#include <linux/module.h>
#include <linux/sched.h>
#include <linux/syscalls.h>
@@ -169,7 +167,8 @@ static int ____call_usermodehelper(void *data)
retval = -EPERM;
if (current->fs->root)
- retval = execve(sub_info->path, sub_info->argv, sub_info->envp);
+ retval = kernel_execve(sub_info->path,
+ sub_info->argv, sub_info->envp);
/* Exec failed? */
sub_info->retval = retval;
diff --git a/lib/Makefile b/lib/Makefile
index ddf3e676e1f..4d752be0edc 100644
--- a/lib/Makefile
+++ b/lib/Makefile
@@ -35,6 +35,8 @@ ifneq ($(CONFIG_HAVE_DEC_LOCK),y)
lib-y += dec_and_lock.o
endif
+lib-y += execve.o
+
obj-$(CONFIG_CRC_CCITT) += crc-ccitt.o
obj-$(CONFIG_CRC16) += crc16.o
obj-$(CONFIG_CRC32) += crc32.o
diff --git a/lib/execve.c b/lib/execve.c
new file mode 100644
index 00000000000..2667ebc1504
--- /dev/null
+++ b/lib/execve.c
@@ -0,0 +1,23 @@
+#include <asm/bug.h>
+#include <asm/uaccess.h>
+
+#define __KERNEL_SYSCALLS__
+static int errno __attribute__((unused));
+#include <asm/unistd.h>
+
+#ifdef _syscall3
+int kernel_execve (const char *filename, char *const argv[], char *const envp[])
+ __attribute__((__weak__));
+int kernel_execve (const char *filename, char *const argv[], char *const envp[])
+{
+ mm_segment_t fs = get_fs();
+ int ret;
+
+ WARN_ON(segment_eq(fs, USER_DS));
+ ret = execve(filename, (char **)argv, (char **)envp);
+ if (ret)
+ ret = -errno;
+
+ return ret;
+}
+#endif