From 0ac15559150a20d39d381a6be44cdea373584222 Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Tue, 16 Oct 2007 01:26:37 -0700 Subject: m32r: convert to generic sys_ptrace Convert m32r to the generic sys_ptrace. The conversion requires an architecture hook after ptrace_attach which this patch adds. The hook will also be needed for a conersion of ia64 to the generic ptrace code. Thanks to Hirokazu Takata for fixing a bug in the first version of this code. Signed-off-by: Christoph Hellwig Cc: Hirokazu Takata Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- arch/m32r/kernel/ptrace.c | 42 +++--------------------------------------- 1 file changed, 3 insertions(+), 39 deletions(-) (limited to 'arch') diff --git a/arch/m32r/kernel/ptrace.c b/arch/m32r/kernel/ptrace.c index abbeaf8f6d0..ed4d0756c5d 100644 --- a/arch/m32r/kernel/ptrace.c +++ b/arch/m32r/kernel/ptrace.c @@ -570,7 +570,7 @@ withdraw_debug_trap(struct pt_regs *regs) } } -static void +void init_debug_traps(struct task_struct *child) { struct debug_trap *p = &child->thread.debug_trap; @@ -593,8 +593,8 @@ void ptrace_disable(struct task_struct *child) /* nothing to do.. */ } -static int -do_ptrace(long request, struct task_struct *child, long addr, long data) +long +arch_ptrace(struct task_struct *child, long request, long addr, long data) { int ret; @@ -720,42 +720,6 @@ do_ptrace(long request, struct task_struct *child, long addr, long data) return ret; } -asmlinkage long sys_ptrace(long request, long pid, long addr, long data) -{ - struct task_struct *child; - int ret; - - lock_kernel(); - if (request == PTRACE_TRACEME) { - ret = ptrace_traceme(); - goto out; - } - - child = ptrace_get_task_struct(pid); - if (IS_ERR(child)) { - ret = PTR_ERR(child); - goto out; - } - - if (request == PTRACE_ATTACH) { - ret = ptrace_attach(child); - if (ret == 0) - init_debug_traps(child); - goto out_tsk; - } - - ret = ptrace_check_attach(child, request == PTRACE_KILL); - if (ret == 0) - ret = do_ptrace(request, child, addr, data); - -out_tsk: - put_task_struct(child); -out: - unlock_kernel(); - - return ret; -} - /* notification of system call entry/exit * - triggered by current->work.syscall_trace */ -- cgit v1.2.3