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Drop struct pt_regs * argument in compat_sys_execve()

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Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
This commit is contained in:
Al Viro 2012-10-20 13:13:11 -04:00
parent 6a872777ff
commit 733deca197
6 changed files with 6 additions and 13 deletions
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6
arch/tile/include/asm/compat.h
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@ -275,9 +275,6 @@ extern int compat_setup_rt_frame(int sig, struct k_sigaction *ka,
struct compat_sigaction;
struct compat_siginfo;
struct compat_sigaltstack;
long compat_sys_execve(const char __user *path,
compat_uptr_t __user *argv,
compat_uptr_t __user *envp, struct pt_regs *);
long compat_sys_rt_sigaction(int sig, struct compat_sigaction __user *act,
struct compat_sigaction __user *oact,
size_t sigsetsize);
@ -304,9 +301,6 @@ long compat_sys_sched_rr_get_interval(compat_pid_t pid,
struct compat_timespec __user *interval);
/* These are the intvec_64.S trampolines. */
long _compat_sys_execve(const char __user *path,
const compat_uptr_t __user *argv,
const compat_uptr_t __user *envp);
long _compat_sys_sigaltstack(const struct compat_sigaltstack __user *uss_ptr,
struct compat_sigaltstack __user *uoss_ptr);
long _compat_sys_rt_sigreturn(void);

3
arch/tile/include/asm/processor.h
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@ -239,6 +239,9 @@ unsigned long get_wchan(struct task_struct *p);
#define KSTK_TOP(task) (task_ksp0(task) - STACK_TOP_DELTA)
#define task_pt_regs(task) \
((struct pt_regs *)(task_ksp0(task) - KSTK_PTREGS_GAP) - 1)
#define current_pt_regs() \
((struct pt_regs *)((stack_pointer | (THREAD_SIZE - 1)) - \
(KSTK_PTREGS_GAP - 1)) - 1)
#define task_sp(task) (task_pt_regs(task)->sp)
#define task_pc(task) (task_pt_regs(task)->pc)
/* Aliases for pc and sp (used in fs/proc/array.c) */

1
arch/tile/kernel/compat.c
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@ -103,7 +103,6 @@ long compat_sys_sched_rr_get_interval(compat_pid_t pid,
#define compat_sys_readahead sys32_readahead
/* Call the trampolines to manage pt_regs where necessary. */
#define compat_sys_execve _compat_sys_execve
#define compat_sys_sigaltstack _compat_sys_sigaltstack
#define compat_sys_rt_sigreturn _compat_sys_rt_sigreturn
#define sys_clone _sys_clone

1
arch/tile/kernel/intvec_64.S
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@ -1194,7 +1194,6 @@ PTREGS_SYSCALL(sys_execve, r3)
PTREGS_SYSCALL(sys_sigaltstack, r2)
PTREGS_SYSCALL_SIGRETURN(sys_rt_sigreturn, r0)
#ifdef CONFIG_COMPAT
PTREGS_SYSCALL(compat_sys_execve, r3)
PTREGS_SYSCALL(compat_sys_sigaltstack, r2)
PTREGS_SYSCALL_SIGRETURN(compat_sys_rt_sigreturn, r0)
#endif

6
arch/tile/kernel/process.c
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@ -614,8 +614,7 @@ out:
#ifdef CONFIG_COMPAT
long compat_sys_execve(const char __user *path,
compat_uptr_t __user *argv,
compat_uptr_t __user *envp,
struct pt_regs *regs)
compat_uptr_t __user *envp)
{
long error;
struct filename *filename;
@ -624,7 +623,8 @@ long compat_sys_execve(const char __user *path,
error = PTR_ERR(filename);
if (IS_ERR(filename))
goto out;
error = compat_do_execve(filename->name, argv, envp, regs);
error = compat_do_execve(filename->name, argv, envp,
current_pt_regs());
putname(filename);
if (error == 0)
single_step_execve();

2
include/linux/compat.h
View File

@ -286,10 +286,8 @@ asmlinkage ssize_t compat_sys_pwritev(unsigned long fd,
int compat_do_execve(const char *filename, const compat_uptr_t __user *argv,
const compat_uptr_t __user *envp, struct pt_regs *regs);
#ifdef __ARCH_WANT_SYS_EXECVE
asmlinkage long compat_sys_execve(const char __user *filename, const compat_uptr_t __user *argv,
const compat_uptr_t __user *envp);
#endif
asmlinkage long compat_sys_select(int n, compat_ulong_t __user *inp,
compat_ulong_t __user *outp, compat_ulong_t __user *exp,