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authorAlexander Graf <agraf@suse.de>2012-10-31 13:36:18 +0100
committerAlexander Graf <agraf@suse.de>2012-10-31 13:36:18 +0100
commit0588000eac9ba4178cebade437da3b28e8fad48f (patch)
tree697e514a0a0193f17a54f372dd18c5cd3927e154 /arch/arm/kernel/sys_arm.c
parent8b5869ad85f703ffeb25e656eab826f6b85b984c (diff)
parent81c52c56e2b43589091ee29038bcf793d3f184ab (diff)
Merge commit 'origin/queue' into for-queue
Conflicts: arch/powerpc/include/asm/Kbuild arch/powerpc/include/uapi/asm/Kbuild
Diffstat (limited to 'arch/arm/kernel/sys_arm.c')
-rw-r--r--arch/arm/kernel/sys_arm.c63
1 files changed, 0 insertions, 63 deletions
diff --git a/arch/arm/kernel/sys_arm.c b/arch/arm/kernel/sys_arm.c
index 76cbb055dd0..c2a898aa57a 100644
--- a/arch/arm/kernel/sys_arm.c
+++ b/arch/arm/kernel/sys_arm.c
@@ -59,69 +59,6 @@ asmlinkage int sys_vfork(struct pt_regs *regs)
return do_fork(CLONE_VFORK | CLONE_VM | SIGCHLD, regs->ARM_sp, regs, 0, NULL, NULL);
}
-/* sys_execve() executes a new program.
- * This is called indirectly via a small wrapper
- */
-asmlinkage int sys_execve(const char __user *filenamei,
- const char __user *const __user *argv,
- const char __user *const __user *envp, struct pt_regs *regs)
-{
- int error;
- char * filename;
-
- filename = getname(filenamei);
- error = PTR_ERR(filename);
- if (IS_ERR(filename))
- goto out;
- error = do_execve(filename, argv, envp, regs);
- putname(filename);
-out:
- return error;
-}
-
-int kernel_execve(const char *filename,
- const char *const argv[],
- const char *const envp[])
-{
- struct pt_regs regs;
- int ret;
-
- memset(&regs, 0, sizeof(struct pt_regs));
- ret = do_execve(filename,
- (const char __user *const __user *)argv,
- (const char __user *const __user *)envp, &regs);
- if (ret < 0)
- goto out;
-
- /*
- * Save argc to the register structure for userspace.
- */
- regs.ARM_r0 = ret;
-
- /*
- * We were successful. We won't be returning to our caller, but
- * instead to user space by manipulating the kernel stack.
- */
- asm( "add r0, %0, %1\n\t"
- "mov r1, %2\n\t"
- "mov r2, %3\n\t"
- "bl memmove\n\t" /* copy regs to top of stack */
- "mov r8, #0\n\t" /* not a syscall */
- "mov r9, %0\n\t" /* thread structure */
- "mov sp, r0\n\t" /* reposition stack pointer */
- "b ret_to_user"
- :
- : "r" (current_thread_info()),
- "Ir" (THREAD_START_SP - sizeof(regs)),
- "r" (&regs),
- "Ir" (sizeof(regs))
- : "r0", "r1", "r2", "r3", "r8", "r9", "ip", "lr", "memory");
-
- out:
- return ret;
-}
-EXPORT_SYMBOL(kernel_execve);
-
/*
* Since loff_t is a 64 bit type we avoid a lot of ABI hassle
* with a different argument ordering.