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ptrace: remove PT_DTRACE from arch/m32r

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m32r: PTRACE_SINGLESTEP sets PT_DTRACE, it is never used except cleared
after do_execve().

Signed-off-by: Oleg Nesterov <oleg@redhat.com>
Acked-by: Hirokazu Takata <takata@linux-m32r.org>
Acked-by: Roland McGrath <roland@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Oleg Nesterov 2009-06-17 16:27:27 -07:00 committed by Linus Torvalds
parent 9d35f8464d
commit 48597760fa
2 changed files with 0 additions and 9 deletions
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5
arch/m32r/kernel/process.c
View file

@ -302,11 +302,6 @@ asmlinkage int sys_execve(char __user *ufilename, char __user * __user *uargv,
goto out; goto out;
error = do_execve(filename, uargv, uenvp, &regs); error = do_execve(filename, uargv, uenvp, &regs);
if (error == 0) {
task_lock(current);
current->ptrace &= ~PT_DTRACE;
task_unlock(current);
}
putname(filename); putname(filename);
out: out:
return error; return error;

4
arch/m32r/kernel/ptrace.c
View file

@ -676,10 +676,6 @@ arch_ptrace(struct task_struct *child, long request, long addr, long data)
if (!valid_signal(data)) if (!valid_signal(data))
break; break;
clear_tsk_thread_flag(child, TIF_SYSCALL_TRACE); clear_tsk_thread_flag(child, TIF_SYSCALL_TRACE);
if ((child->ptrace & PT_DTRACE) == 0) {
/* Spurious delayed TF traps may occur */
child->ptrace |= PT_DTRACE;
}
/* Compute next pc. */ /* Compute next pc. */
pc = get_stack_long(child, PT_BPC); pc = get_stack_long(child, PT_BPC);