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arm64: Use generic sys_execve() implementation 

This patch converts the arm64 port to use the generic sys_execve()
implementation removing the arm64-specific (compat_)sys_execve_wrapper()
functions.

Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
This commit is contained in:
Catalin Marinas 2012-09-10 16:11:46 +01:00
parent 59dc67b0cc
commit 6a872777ff
7 changed files with 2 additions and 54 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
arch/arm64/include/asm/syscalls.h
View File

@ -23,9 +23,6 @@
/*
* System call wrappers implemented in kernel/entry.S.
*/
asmlinkage long sys_execve_wrapper(const char __user *filename,
const char __user *const __user *argv,
const char __user *const __user *envp);
asmlinkage long sys_clone_wrapper(unsigned long clone_flags,
unsigned long newsp,
void __user *parent_tid,

1
arch/arm64/include/asm/unistd.h
View File

@ -26,4 +26,5 @@
#define __ARCH_WANT_COMPAT_SYS_RT_SIGSUSPEND
#define __ARCH_WANT_COMPAT_SYS_SENDFILE
#endif
#define __ARCH_WANT_SYS_EXECVE
#include <uapi/asm/unistd.h>

2
arch/arm64/include/asm/unistd32.h
View File

@ -32,7 +32,7 @@ __SYSCALL(7, sys_ni_syscall) /* 7 was sys_waitpid */
__SYSCALL(8, sys_creat)
__SYSCALL(9, sys_link)
__SYSCALL(10, sys_unlink)
__SYSCALL(11, compat_sys_execve_wrapper)
__SYSCALL(11, compat_sys_execve)
__SYSCALL(12, sys_chdir)
__SYSCALL(13, sys_ni_syscall) /* 13 was sys_time */
__SYSCALL(14, sys_mknod)

5
arch/arm64/kernel/entry.S
View File

@ -676,11 +676,6 @@ __sys_trace_return:
/*
* Special system call wrappers.
*/
ENTRY(sys_execve_wrapper)
mov x3, sp
b sys_execve
ENDPROC(sys_execve_wrapper)
ENTRY(sys_clone_wrapper)
mov x5, sp
b sys_clone

22
arch/arm64/kernel/sys.c
View File

@ -41,27 +41,6 @@ asmlinkage long sys_clone(unsigned long clone_flags, unsigned long newsp,
return do_fork(clone_flags, newsp, regs, 0, parent_tidptr, child_tidptr);
}
/*
* sys_execve() executes a new program.
*/
asmlinkage long sys_execve(const char __user *filenamei,
const char __user *const __user *argv,
const char __user *const __user *envp,
struct pt_regs *regs)
{
long error;
struct filename *filename;
filename = getname(filenamei);
error = PTR_ERR(filename);
if (IS_ERR(filename))
goto out;
error = do_execve(filename->name, argv, envp, regs);
putname(filename);
out:
return error;
}
asmlinkage long sys_mmap(unsigned long addr, unsigned long len,
unsigned long prot, unsigned long flags,
unsigned long fd, off_t off)
@ -75,7 +54,6 @@ asmlinkage long sys_mmap(unsigned long addr, unsigned long len,
/*
* Wrappers to pass the pt_regs argument.
*/
#define sys_execve sys_execve_wrapper
#define sys_clone sys_clone_wrapper
#define sys_rt_sigreturn sys_rt_sigreturn_wrapper
#define sys_sigaltstack sys_sigaltstack_wrapper

5
arch/arm64/kernel/sys32.S
View File

@ -36,11 +36,6 @@ compat_sys_vfork_wrapper:
b compat_sys_vfork
ENDPROC(compat_sys_vfork_wrapper)
compat_sys_execve_wrapper:
mov x3, sp
b compat_sys_execve
ENDPROC(compat_sys_execve_wrapper)
compat_sys_clone_wrapper:
mov x5, sp
b compat_sys_clone

18
arch/arm64/kernel/sys_compat.c
View File

@ -49,24 +49,6 @@ asmlinkage int compat_sys_vfork(struct pt_regs *regs)
regs, 0, NULL, NULL);
}
asmlinkage int compat_sys_execve(const char __user *filenamei,
compat_uptr_t argv, compat_uptr_t envp,
struct pt_regs *regs)
{
int error;
struct filename *filename;
filename = getname(filenamei);
error = PTR_ERR(filename);
if (IS_ERR(filename))
goto out;
error = compat_do_execve(filename->name, compat_ptr(argv),
compat_ptr(envp), regs);
putname(filename);
out:
return error;
}
asmlinkage int compat_sys_sched_rr_get_interval(compat_pid_t pid,
struct compat_timespec __user *interval)
{