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unicore32: switch to generic sys_execve() 

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Acked-and-Tested-by: Guan Xuetao <gxt@mprc.pku.edu.cn>
This commit is contained in:
Al Viro 2012-10-13 17:36:40 -04:00 committed by Guan Xuetao
parent 38e993535e
commit 60541d778e
3 changed files with 1 additions and 26 deletions
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1
arch/unicore32/include/uapi/asm/unistd.h
View File

@ -12,3 +12,4 @@
/* Use the standard ABI for syscalls. */
#include <asm-generic/unistd.h>
#define __ARCH_WANT_SYS_EXECVE

5
arch/unicore32/kernel/entry.S
View File

@ -668,11 +668,6 @@ __cr_alignment:
#endif
.ltorg
ENTRY(sys_execve)
add r3, sp, #S_OFF
b __sys_execve
ENDPROC(sys_execve)
ENTRY(sys_clone)
add ip, sp, #S_OFF
stw ip, [sp+], #4

21
arch/unicore32/kernel/sys.c
View File

@ -42,27 +42,6 @@ asmlinkage long __sys_clone(unsigned long clone_flags, unsigned long newsp,
parent_tid, child_tid);
}
/* sys_execve() executes a new program.
* This is called indirectly via a small wrapper
*/
asmlinkage long __sys_execve(const char __user *filename,
const char __user *const __user *argv,
const char __user *const __user *envp,
struct pt_regs *regs)
{
int error;
struct filename *fn;
fn = getname(filename);
error = PTR_ERR(fn);
if (IS_ERR(fn))
goto out;
error = do_execve(fn->name, argv, envp, regs);
putname(fn);
out:
return error;
}
/* Note: used by the compat code even in 64-bit Linux. */
SYSCALL_DEFINE6(mmap2, unsigned long, addr, unsigned long, len,
unsigned long, prot, unsigned long, flags,